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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

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For the fiscal year ended December 31, 2025

or

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For the transition period from _______ to _______

Commission file number: 001-40284

(303) 219-0720

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of the voting stock held by non-affiliates of the Registrant, as of June 30, 2025, the last business day of the Registrant’s most recently completed second fiscal quarter, was approximately $367.6 million. Solely for purposes of this disclosure, shares of common stock held by executive officers and directors of the Registrant as of such date have been excluded because such persons may be deemed to be affiliates. This determination of executive officers and directors as affiliates is not necessarily a conclusive determination for any other purposes.

220,578,327 shares of common stock were issued and outstanding as of February 23, 2026.

DOCUMENT INCORPORATED BY REFERENCE

Portions of the Registrant’s definitive proxy statement relating to its 2026 annual meeting of stockholders (the “2026 Proxy Statement”) are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. The 2026 Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K (this “Report”), including any portions of the 2026 Proxy Statement that may be incorporated by reference, contains forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, that involve risks and uncertainties. References in this Report to “Solid Power,” “the Company,” “we,” “us,” and “our” refer to Solid Power, Inc. and its consolidated subsidiaries. We have based these forward-looking statements on our current expectations and projections about future events. All statements, other than statements of present or historical fact included in this Report, regarding our future financial performance, strategy, expansion plans, including plans related to the expansion of our electrolyte production capabilities, market opportunity, operations, and operating results; estimated revenues or losses; projected costs; future prospects; and plans and objectives of management are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as “may,” “should,” “could,” “would,” “will,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “continue,” “project,” or the negative of such terms or other similar expressions. These forward-looking statements are subject to known and unknown risks, uncertainties, and assumptions about us that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statements. Except as otherwise required by applicable law, we disclaim any duty to update any forward-looking statements, all of which are expressly qualified by the statements in this section, to reflect events or circumstances after the date of this Report. We caution you that the forward-looking statements contained herein are subject to numerous risks and uncertainties, most of which are difficult to predict and many of which are beyond our control.

In addition, we caution you that the forward-looking statements regarding the Company contained in this Report are subject to the following factors:

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We caution you that the foregoing list does not contain all of the risks or uncertainties that could affect the Company.

You should not rely upon forward-looking statements as predictions of future events. We have based the forward-looking statements contained in this Report primarily on our current expectations and projections about future events and trends that we believe may affect our business, operating results, financial condition and prospects. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties and other factors, including those described in the section titled “Risk Factors” and elsewhere in this Report. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this Report. We cannot assure you that the results, events, and circumstances reflected in the forward-looking statements will be achieved or occur, and actual results, events, or circumstances could differ materially from those described in the forward-looking statements.

Neither we nor any other person assumes responsibility for the accuracy and completeness of any of these forward-looking statements. Moreover, the forward-looking statements made in this Report relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this Report to reflect events or circumstances after the date of this Report or to reflect new information or the occurrence of unanticipated events, except as required by law. You should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures, or investments we may make.

TRADEMARKS

Our logo and trademark appearing in this Report and the documents incorporated by reference herein are our property. This document and the documents incorporated by reference herein contains references to trademarks and service marks belonging to other entities. Solely for convenience, trademarks and trade names referred to in this Report may appear without the ® or TM symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks and trade names. We do not intend our use or display of other companies’ trade names, trademarks, or service marks to imply a relationship with, or endorsement or sponsorship of it by, any other companies.

MARKET AND INDUSTRY DATA

We obtained the industry and market data used throughout this Report or any documents incorporated herein by reference from our own internal estimates and research, as well as from independent market research, industry and general publications and surveys, governmental agencies, publicly available information, and research, surveys, and studies conducted by third parties. Internal estimates are derived from publicly available information released by industry analysts and third-party sources, our internal research, and our industry experience and are based on assumptions made by us based on such data and our knowledge of our industry and market, which we believe to be reasonable. In some cases, we do not expressly refer to the sources from which this data is derived. In addition, while we believe the industry and market data included in this Report or any documents incorporated herein by reference is reliable and based on reasonable assumptions, such data involve material risks and other uncertainties and is subject to change based on various factors, including those discussed in the section entitled “Risk Factors.” These and other factors could cause results to differ materially from those expressed in the estimates made by the independent parties or by us.

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Partnerships

We collaborate with a number of industry leaders, including BMW of North America LLC (“BMW”), Samsung SDI Co., Ltd. (“Samsung SDI”), SK On Co., Ltd. (“SK On”), and other OEMs and Tier 1 battery manufacturers. We expect to continue to work closely with these parties to improve our electrolyte and ultimately commercialize our technologies.

Benefits of Our Technology

We believe our electrolyte has the potential to provide the following benefits when incorporated into a solid-state cell as compared to traditional lithium-ion batteries:

If our electrolyte proves successful at delivering these benefits, we believe it would allow for reduced costs of battery packs through reduction of expensive pack engineering.

2025 Business Highlights

Drove electrolyte innovation and performance through feedback from cell development and customers.

In 2025, we focused our cell research and development efforts on enhancing the feedback between our cell and electrolyte teams, with the ultimate goal of developing a superior understanding of how and why our electrolyte performs in a solid-state cell and using that knowledge to help our electrolyte customers improve their cell development. We also sampled electrolyte to potential customers, partners, and industry leaders and received productive customer feedback. Through this focus and our sampling efforts, we improved our understanding of our electrolyte performance, identified process engineering and electrolyte improvements, and worked to tailor our electrolyte to meet customers’ specifications. We believe we are the only entity with both pilot-scale sulfide electrolyte manufacturing and pilot-scale solid-state cell manufacturing capabilities, which positions us to utilize feedback from our internal cell development team as well as feedback from customers and other external parties to improve our electrolyte products.

Executed on our electrolyte development roadmap.

In January 2025, we entered into an assistance agreement (as amended in May 2025, the “Assistance Agreement”) with the U.S. Department of Energy (“DOE”) for a grant of up to $50 million under the Infrastructure Investment and Jobs Act, or Bipartisan Infrastructure Law. With this project, we intend to install the first globally known continuous manufacturing process of sulfide-based solid electrolyte materials for advanced all-solid-state batteries and expand our electrolyte production capabilities. The expansion is designed to further our technology roadmap and support anticipated small volume programs of current and future customers as they begin to transition from traditional lithium-ion to solid-state battery technology. During 2025, we finished ordering long-lead time equipment and conducted detailed design for a pilot line designed to manufacture electrolyte on a continuous process.

Our cost share obligation under the Assistance Agreement is $60 million, and we are subject to certain reporting requirements and compliance obligations under the Assistance Agreement. We may not receive continued funding under the Assistance Agreement in the amount we expect. For more information, see “Part I, Item 1A. Risk Factors—Risks Related to Development and Commercialization—We rely on government contracts and grants for a portion of our revenue and to partially fund our research and development activities, and such contracts and grants are subject to a number of uncertainties, challenges, and risks.”

Continued electrolyte sampling and pursued long-term customers.

We continued our electrolyte sampling efforts and saw demand for multiple generations of electrolyte from both existing and new customers during 2025. In October 2025, we announced a joint evaluation agreement with Samsung SDI and BMW AG (the “Joint Evaluation Agreement”) to progress the development of all-solid-state batteries, marking meaningful progress on our path towards commercialization and validating our electrolyte sampling efforts. For more information on our collaboration with Samsung SDI and BMW AG, see “—Partnerships—Samsung SDI” below.

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Executed on the SK On Agreements.

We continued to execute on our agreements with SK On in 2025, including a research and development technology license agreement (the “SK On R&D license”), line installation agreement, and electrolyte supply agreement (collectively, the “SK On Agreements”). The SK On Agreements are designed to allow SK On to develop solid-state cells based on our technology and operate a pilot cell manufacturing line at SK On’s facility (the “SK On Line”) using our electrolyte. We completed the factory acceptance testing milestone in the line installation agreement and neared completion of site acceptance testing at SK On’s facility. For more information regarding our relationship with SK On, see “—Partnerships—SK On” below.

Remained fiscally disciplined.

During 2025, we focused on extending our runway through financial discipline while still investing appropriately in technology development and process improvements. We also raised net proceeds of $88.8 million after deducting offering costs, commissions, and fees through sales of our shares of common stock under an at-the-market offering program (the “ATM”). See “Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” for more information.

2026 Development Objectives

Multiple new potential customers and industry leaders requested samples of our electrolyte in 2025, and the majority of our electrolyte volume went to our partners in the Republic of Korea in 2025. We believe Tier 1 battery manufacturers and OEMs are coalescing around sulfide solid-state batteries as the preferred solid state cell architecture of the future and view our continued sampling activities as a validation of our intended business model.

Through the sampling process, we have seen a variety in approaches to cell designs and, accordingly, are focused on developing a strong understanding of how our electrolyte affects certain cell performance parameters and performs relative to other sulfide electrolyte products. We believe this can give Solid Power a competitive advantage compared to electrolyte producers that do not have cell competencies and drive commercialization of our electrolyte. We aim to facilitate worldwide cell development using our electrolyte and intend to leverage our cell capabilities to support our electrolyte development rather than to compete with Tier 1 cell manufacturers and OEMs. We believe this strategy gives us the best opportunity to be the electrolyte supplier of choice to Tier 1 battery manufacturers and OEMs that choose to produce their own battery cells.

As the solid-state battery landscape continues to evolve, we are focused on the following near-term objectives:

Strengthen relationships with our partners through continued execution.

We believe continued execution on our agreements with our partners is important for developing and securing long-term customers. In 2026, we expect to continue providing Samsung SDI with electrolyte under the Joint Evaluation Agreement. To meet applicable technical requirements and Samsung SDI’s expectations for our electrolyte, we plan to continue developing our technology and pursuing electrolyte innovation. Additionally, we have substantially completed the deliverables for site acceptance testing of the SK On Line and expect site acceptance to be complete in the first quarter of 2026. Following completion of site acceptance testing, we expect to work with SK On to conduct validation activities under the SK On R&D license. As part of the validation efforts, we plan to begin delivering electrolyte to SK On under the electrolyte supply agreement in 2026. The pace of battery technology development is not predictable, and there can be no assurance that we will achieve the technical and contractual requirements under our agreements. See “Part I, Item 1A. Risk Factors—Risks Related to Development and Commercialization” for more information.

Continue executing on our electrolyte development roadmap.

We expect to commission our continuous electrolyte production line by the end of 2026. Once installed, we expect this pilot line to expand our annual electrolyte production capacity to up to 75 metric tons. We believe a continuous manufacturing process is necessary prior to scaling to commercial volumes, and this pilot line is designed to allow us to learn and optimize the manufacturing processes ahead of full commercialization. In addition, we expect the continuous manufacturing process will allow us to produce electrolyte at a lower cost compared to today’s process.

In anticipation of additional demand for sulfide electrolyte in the Korean battery market, we also intend to pursue a potential partnership for commercial-scale electrolyte production in the Republic of Korea. To complement our technical expertise, we plan to explore potential partners with process capabilities and capital to support construction of a facility capable of producing up to 500 metric tons of electrolyte annually.

Promote electrolyte product competitiveness.

During 2026, we plan to focus on enhancing our understanding of key metrics for competitive electrolyte and how our electrolyte performs relative to those metrics and enabling customer success in utilizing our electrolyte products. We believe this focus

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will support our efforts to develop competitive products and secure long-term customers. To support these efforts, we plan to utilize our Electrolyte Innovation Center, or EIC, to develop, improve, and test electrolyte manufacturing processes as well as electrolyte products. We also intend to continue focusing our cell research and development activities on improving our understanding of how and why our electrolyte performs in a solid-state cell and using that knowledge to help our electrolyte customers improve their cell development.

Remain fiscally disciplined.

We believe maintaining and using our strong balance sheet to best position Solid Power to reach commercialization are critical for our success. During 2026, we intend to maintain our focus on extending our runway through financial discipline while still investing appropriately in technology development and process improvements. For more information, see “Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources.” In January 2026, we received net proceeds of $122.2 million, after deducting fees and before expenses, from a registered direct offering (the “Registered Direct Offering”). See Note 16 of our audited financial statements included in this Report for more information.

Partnerships

Since we do not contemplate becoming a commercial cell manufacturer, one of our key goals is to establish and expand partnerships with Tier 1 battery manufacturers and OEMs. Our agreements with our partners are non-exclusive, allowing us to pursue additional OEM or battery manufacturer relationships. The following sets forth the material terms of our agreements with our partners.

BMW Group

We have a long-standing relationship with BMW, which began in 2016. Our relationship initially focused on cell research and development, and in 2017, we announced a partnership to jointly develop solid-state battery cell technology. In 2021, BMW and Solid Power expanded the partnership with BMW Holding B.V.’s (“BMW Holding”) participation in our $135.6 million Series B investment round, which closed in May 2021 (the “Series B Financing”) and with the execution of a JDA for EV cells for testing and vehicle integration with BMW.

The JDA with BMW sets out the collaborative framework for research and development and vehicle integration of solid-state battery cells. The JDA requires us to continue our research and development efforts towards deployment in BMW’s EVs. Additionally, the terms of the JDA permit BMW to share in certain intellectual property developed through these research and development efforts. Solid Power’s ability to share developments gained through the course of performance of the JDA with its other partners is limited in certain circumstances. The JDA also contemplates entering additional agreements with BMW for purchase and pricing of electrolyte materials, integration into cell designs, as well as licensing our cell technology to cell producers. The key commercial terms of such additional arrangements have not yet been determined.

During 2022, we amended our JDA to provide BMW with a research and development-only license to certain of our intellectual property relating to cell manufacturing. The license allows for BMW to install a solid-state prototype cell manufacturing line based upon our proprietary information and BMW agreed to pay us $20 million between December 2022 and June 2024, subject to our achieving certain milestones. During 2024, we engaged with BMW in joint development and manufacturing activities at our facilities. Under the terms of the amended JDA, any intellectual property developed jointly by BMW and Solid Power at our facilities will be solely owned by us. In June 2024, we amended our JDA with BMW to (i) extend the term of the JDA to September 30, 2024 and (ii) revise the payment schedule under Amendment No. 4 to the JDA, effective November 1, 2022. In September 2024, we further amended our JDA with BMW to (i) extend the term of the JDA until we hit certain development milestones; provided that BMW will have termination rights in certain circumstances beginning on December 31, 2025, and (ii) revise certain deliverables and the timing to achieve various milestones and development targets and confirm cell performance requirements. We intend to negotiate a non-exclusive electrolyte supply agreement to supply BMW with our electrolyte material following commissioning of BMW’s prototype cell manufacturing line.

BMW Group’s introduction of an i7 test vehicle featuring our cells and solid-state battery technology in May 2025 was a significant achievement in our partnership with BMW. In October 2025, we expanded our partnership with BMW through a collaboration with BMW AG and Samsung SDI to progress development of all-solid-state batteries. For more information on our partnership with BMW AG and Samsung SDI, see “—Samsung SDI.”

Pursuant to our Board Nomination Support Agreement, dated May 5, 2021, with BMW Holding (the “BMW Nomination Agreement”), BMW Holding has the right to nominate a director for election to our Board of Directors (the “Board”). Rainer Feurer, Senior Vice President at BMW and BMW Holding’s nominee, has served on our Board since December 2021 and was a director of Solid Power Operating, Inc. from May 2021 until December 2021, in each case pursuant to the BMW Nomination Agreement. Also,

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BMW Holding has the right to designate an individual to attend meetings of our Board and its committees in a non-voting, observer capacity.

Samsung SDI

In October 2025, we announced a collaboration with Samsung SDI and BMW AG to pursue development and validation of a demonstration vehicle powered by all-solid-state battery technology. We entered into a Joint Evaluation Agreement with Samsung SDI and BMW AG that outlines the collaborative framework. Under the Joint Evaluation Agreement, we agreed to provide electrolyte to Samsung SDI, which Samsung SDI will use to fabricate separator and/or catholyte and build cells, in each case subject to achievement of technical requirements. Samsung SDI will determine whether the cells satisfy performance parameters and requirements to be agreed between BMW and Samsung SDI.

SK On

Our relationship with SK On began in 2021 with a non-exclusive JDA for joint production of our EV cells. SK On also invested $30 million into our company in connection with the closing of our business combination with Decarbonization Plus Acquisition Corporation III in 2021. In January 2024, we deepened our relationship with SK On through entry into the SK On Agreements.

Under the SK On R&D license, SK On licensed our cell designs and manufacturing processes in exchange for payments totaling $20 million from 2024 to 2027, upon achievement of milestones. The SK On R&D license limits SK On to research and development activities and may not be used for commercial cell production. The line installation agreement provides that Solid Power will design, procure, and install the SK On Line at one of SK On’s Korea facilities in exchange for an estimated $22 million, upon achievement of milestones. SK On also agreed to purchase our electrolyte for use on the SK On Line through the electrolyte supply agreement. Initially, under the electrolyte supply agreement, SK On will purchase electrolyte to validate the SK On Line. SK On is required to purchase at least eight metric tons of electrolyte from Solid Power through 2030, which we expect SK On to use in advancing its cell technologies. Depending on volumes, we expect to receive at least $8.3 million from these electrolyte sales.

Ford Motor Company

In 2021, we and Ford Motor Company (“Ford”) entered into a JDA relating to testing and vehicle integration of our EV cells. The terms of the JDA permit Ford to share in certain intellectual property developed under the JDA and limit our ability to share developments gained through the course of performance of the JDA with other partners in certain circumstances. In December 2024, we amended our JDA with Ford to extend the expiration date to December 31, 2025 and to revise our cell material delivery obligations. Effective December 31, 2025, in connection with the winding up of our cell development activities with Ford, we and Ford amended the JDA to further extend the expiration date to March 31, 2026, revise certain deliverables, and provide Ford with a license to certain of our background technology. We expect the JDA will expire by its terms on March 31, 2026. Following expiration of the JDA, we aim to pursue opportunities to supply Ford with our electrolyte material.

Intellectual Property

Our proprietary battery material and cell technology is protected through a combination of patents, patent applications, trade secrets, and know-how. Our patent portfolio includes technologies we invented, in addition to exclusive licenses obtained from the University of Colorado Boulder and Oak Ridge National Laboratory. Solid electrolyte materials and methods of production make up the largest portion of our patent application filings. Additional subjects include electrode and cell designs, cell processing methods, and electrolyte precursor methods, among others. We regularly file new applications in areas that are enforceable or reverse-engineerable. As of February 1, 2026, we owned or exclusively licensed 24 issued United States patents, 100 pending United States patent applications, 111 non-United States and PCT patents and applications, 2 registered United States trademarks, 2 pending United States trademarks, and 1 registered or pending non-United States trademarks. Patents issued to us will begin expiring in 2036. Processes for manufacturing sulfide-based solid electrolyte materials and solid-state cells make up the majority of our trade secrets. We further protect our intellectual property, including our trade secrets and know-how, with non-disclosure agreements for all employees, consultants, and other third parties, material transfer agreements, and license agreements as well as physical and technological security measures.

Competition

Performance improvements in next-generation battery and EV technology is expected to contribute to global adoption of EVs. This trend has heightened competition and brought new entrants into the industry. We compete directly with both established

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and emerging materials suppliers and battery cell producers in the United States and abroad, and some of our competitors may be better capitalized or have more experience, superior products, or stronger relationships with their suppliers and customers.

A number of mature and development-stage companies are seeking to improve conventional lithium-ion battery cells or to develop new technologies for battery cells. Some of these companies have established relationships with OEMs and are in varying stages of development.

We believe our ability to compete successfully with both traditional lithium-ion and new battery technology will depend on several factors, including electrolyte performance and cost, safety, energy density, and battery life, and non-technical factors such as brand, established customer and partner relationships, and financial and manufacturing resources. We believe our relationships with our partners can expedite our research and development process relative to our competitors by creating a feedback loop allowing for rapid and intelligent iterations.

Government Regulation and Compliance

We are subject to substantial regulation in the United States and abroad, including international, federal, state, and local laws which may vary from country to country and are subject to change. Government regulations frequently control how battery cells and their components are stored, transported, used, and disposed of through environmental laws and regulations regarding hazardous substances and solid waste. These laws may impose strict, joint, and several liability for the investigation and remediation of areas where hazardous substances may have been released or disposed. In the ordinary course of operations, we, through third parties and contractors, may handle hazardous substances within the meaning of the Comprehensive Environmental Response, Compensation, and Liability Act and similar state statutes and, as a result, may be jointly and severally liable for all or part of the costs required to clean up sites at which these hazardous substances have been released into the environment. We are also subject to the strict requirements of the Resource Conservation and Recovery Act and comparable state statutes for the generation or disposal of solid waste, which may include hazardous waste. We believe we are in material compliance with applicable environmental laws and regulations. The cost of compliance with such laws and regulations has not had a material adverse effect on our capital expenditures, earnings, or competitive position and is not anticipated to have a material adverse effect in the future. However, we cannot guarantee that we are in full compliance with all environmental laws and regulations or that we will be able to comply with any future requirements or changes in such laws and regulations without significant costs.

The Occupational Safety and Health Act (“OSHA”) and comparable laws in other jurisdictions regulate the protection of the health and safety of workers. In addition, the OSHA hazard communication standard requires that information be maintained about any hazardous materials used or produced in operations and that this information be provided to employees, state and local government authorities, and the public.

In many cases, our products — including our cells and related technology — are or may in the future be subject to trade and export control laws and regulations in the United States and other jurisdictions where we do business. Such laws may include the export administration regulations and similar export control regimes, trade and economic sanctions maintained by the Office of Foreign Asset Control and other similar agencies, foreign direct investment rules and regulations, tariffs and quotas, and other related regulations in jurisdictions in which we operate. In particular, an export license may be required to export or re-export our products and technology to certain countries or end-users or for certain end-uses or such export, re-export, or end uses may be prohibited.

In addition, we are subject to the U.S. Foreign Corrupt Practices Act (“FCPA”) and other anti-corruption, anti-bribery, and anti-money laundering laws and regulations in the jurisdictions in which we have offices or do business, both domestic and abroad. Any failure to adequately comply with any of these obligations, or future changes with respect to any of these legal regimes, could cause us to incur significant costs, including the potential for new overhead costs, fines, sanctions, and third-party claims.

Human Capital

As of February 1, 2026, we employed approximately 230 employees, primarily based out of our facilities in Louisville, Colorado and Thornton, Colorado. Many of our employees have a technical background or hold advanced engineering and scientific degrees. We believe building and maintaining an inclusive and equitable culture is important for our success and are committed to providing a workplace free of harassment or discrimination.

We are committed to compensating our employees in a competitive manner. We have taken steps to comply with Colorado’s Equal Pay for Equal Work Act. We offer competitive salaries and benefits, as well as a robust equity compensation plan, all with the intention of attracting and retaining team members capable of making our company a world leader in solid-state electrolyte production and battery development. Our compensation decisions are driven by individual contributions, the overall market, and how critical the role is to our success.

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To date, we have not experienced any work stoppages and consider our relationship with our employees to be good. None of our employees are represented by a labor union or subject to a collective bargaining agreement.

Available Information

Our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and amendments to reports filed pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), are filed with the Securities and Exchange Commission (the “SEC”). These reports and other information we file with or furnish to the SEC are available free of charge at https://www.solidpowerbattery.com/investor-relations/financials/sec-filings as soon as reasonably practicable after they are electronically filed with or furnished to the SEC. In addition, the SEC maintains an internet site that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC at http://www.sec.gov.

We use our website (www.solidpowerbattery.com) and various social media channels (e.g., Solid Power, Inc. on LinkedIn) as a means of disclosing information about Solid Power and our products to our customers, investors, and the public. The information posted on our website and social media channels is not incorporated by reference in this Report or in any other report or document we file with the SEC. Further, references to our website URLs are intended to be inactive textual references only. The information we post through these channels may be deemed material. Accordingly, investors should monitor these channels, in addition to following our press releases, SEC filings, and public conference calls and webcasts. In addition, you may automatically receive e-mail alerts and other information about Solid Power when you enroll your e-mail address by visiting the “Investor Email Alerts” section of our website under “Resources” at https://ir.solidpowerbattery.com. Although our executive officers may also use certain social media channels, we do not use our executive officers’ social media channels to disclose information about Solid Power or our products.

Information about our Executive Officers

Set forth below, in alphabetical order, is a list of our executive officers as of February 25, 2026, including each executive officer’s principal occupation and employment during the past five years. None of our executive officers has any family relationship with any other executive officer, and none of our executive officers became an officer pursuant to any arrangement or understanding with any other person. Each executive officer has been elected to serve until their successor is appointed or their earlier death or removal or resignation from such office. Each executive officer’s age is set forth in the table next to their name.

Joshua Buettner-Garrett serves as our Chief Technology Officer. Mr. Buettner-Garrett joined Solid Power as Chief Technology Officer in November 2013. Prior to joining Solid Power Operating, Inc., he served as Program Manager of the Energy Storage Group at ADA Technologies, Inc., a research and product development business, from 2011 to 2013. He served as a Senior Research Scientist in the ADA Technologies’ Energy Storage Group from 2010 to 2011. Mr. Garrett holds a B.S. in Mechanical Engineering from Arizona State University and a M.S. in Mechanical Engineering from Colorado State University.

Linda Heller has served as our Chief Financial Officer and Treasurer since June 2024 and as our Secretary since May 2025. Prior to joining Solid Power, Ms. Heller served as Chief Financial Officer of Swell Energy, Inc., a distributed solar energy resource and deployment platform company, from May 2021 until June 2024. Prior to Swell Energy, Inc., Ms. Heller served as Chief Financial Officer and Corporate Secretary of Deca Technologies, Inc., a wafer technology company, from September 2017 to March 2020, and as Chief Financial Officer of eSolar, Inc., an early-stage solar power plant technology company, from 2013 to 2017. Ms. Heller served as Senior Vice President, Finance and CFO of Power-One, Inc., a formerly publicly traded company with shares listed on Nasdaq, from 2008 until 2010. She has also served as a director since 2016 and as chairman of the board since June 2020 of Active Life Scientific, Inc., an early-stage medical device company. Ms. Heller holds a B.A. in Economics from Rice University and an M.S. in Management from the MIT Sloan School of Management.

John Van Scoter serves as our President, Chief Executive Officer, and Director. He has served as our Chief Executive Officer, President and as a Class I Director since June 2023. Prior to joining Solid Power, Mr. Van Scoter served as Vice President, General Manager Products at SRI International Inc., an independent nonprofit research institute, from 2019 until June 2023. Prior to joining SRI, Mr. Van Scoter was the CEO, President and Chairman of eSolar, Inc., an early-stage solar power plant technology company, from 2010 until 2018. Prior to eSolar, he held multiple leadership positions over an almost 30-year career with Texas Instruments Incorporated (Nasdaq: TXN), including as Senior Vice President, Alternative Energy Strategy and Senior Vice President,

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General Manager of DLP® Products Division. Mr. Van Scoter served on the board of directors of TE Connectivity Ltd. (NYSE:TEL) from 2008 until 2018. Mr. Van Scoter holds a B.S. in Mechanical Engineering from the University of Vermont.

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Risks Related to Development and Commercialization

The pace of battery technology development is not predictable. Delays or failures in accomplishing development objectives may postpone or prevent us from generating revenues from the sale of electrolyte or licensing of our cell technology. Expectations for when we will achieve various technical and production-level performance objectives depend in large part upon assumptions, estimates, measurements, testing, analyses, and data developed and performed by us, which may be incorrect or flawed.

Our expectations for when we will achieve various technical and production objectives reflect our current expectations and estimates. Whether and when we achieve these objectives depend on a number of factors, many of which are outside our control, such as:

Unfavorable changes in any of these or other factors beyond our control have impeded, and could continue to impede, our ability to achieve our objectives when planned. We may continue to experience unfavorable changes in factors beyond our control, and such unfavorable changes could have a material adverse effect on our business, prospects, results of operations, and financial condition. Additionally, we cannot predict market reaction or the impact on the price of our common stock and Warrants as we make announcements regarding our achievement, or failure to achieve, our objectives and publicly-disclosed milestones. Negative market reactions could result in volatility in the of the price of our common stock and Warrants.

We may not successfully develop our electrolyte for commercialization or attract customers. There is currently no commercial market for sulfide-based solid electrolytes and one may never emerge. Even if sulfide-based solid electrolytes are commercially adopted, we may not be able to effectively compete in any market.

Our business plan contemplates that we will sell our electrolyte to Tier 1 battery manufacturers and OEMs. However, our electrolyte is in the development stage, and we anticipate that our research and development efforts will extend in an iterative process even beyond delivery of our electrolyte to customers wishing to incorporate the material into their products. The continuous need to refine and optimize our products and processes will require us to continue to perform extensive and costly research and development efforts. For example, through validation efforts, we have learned, and may continue to learn, that our electrolyte contains impurities or otherwise does not meet the quality or performance requirements of our customers consistently or at all. Fixing any such problems may require design changes or other research and development efforts, take significant time, and be costly. If our electrolyte fails to perform as expected, we could fail to attract or lose customers of our electrolyte.

Even if we successfully develop our electrolyte for commercialization, there is no established market for sulfide-based solid electrolyte. Our ability to sell our electrolyte to customers will depend on our or their success in developing battery cells which outperform those of traditional lithium-ion batteries. If battery manufacturers do not adopt sulfide-based cell architectures or if markets for sulfide-based solid electrolytes and solid-state battery cells do not develop in the time or to the level we anticipate, we may not be able to find customers to buy our electrolyte.

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Further, we may have to compete with established companies that may be better capitalized or have more experience, superior products, or stronger relationships with their suppliers and customers. Potential customers may be wary of unproven products or not be inclined to work with less established businesses, and large organizations may have significant purchasing power and leverage in negotiating contractual arrangements with us. We will need to obtain or maintain our qualification as a supplier to potential customers. To do so, we will need to comply with standards and achieve and maintain certifications that are or may be required by potential customers, such as International Organization for Standardization (ISO) certifications. In addition, large organizations often have lengthy sales cycles, which may increase the risk that we spend substantial time and resources on a customer that ultimately elects not to purchase our products. If we are unable to successfully sell commercial volumes of electrolyte, we may be unable to achieve our financial projections, we may not recoup the costs associated with scaling production of our electrolyte, and our reputation and prospects may be adversely impacted, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

It will be challenging to develop sulfide-based solid electrolyte capable of production at volume and with acceptable performance, yields, and costs.

Our business depends on our ability to produce sulfide-based solid electrolyte at volume and with acceptable performance, yields, and costs. Developing the technology and know-how to produce electrolyte with acceptable performance at scale and cost is extremely challenging. We face significant obstacles to reaching commercial levels of electrolyte production, including:

If we are unable to overcome these challenges, we may not achieve commercial levels of electrolyte production. Significant delays in achieving, or failure to achieve, commercial production of our electrolyte could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We have not reached agreement with our partners on economic terms for the commercial sale of electrolyte or licensing of our cell technology. As a result, our projections of revenue and other financial results are uncertain.

Our agreements provide a framework for our cooperation with our partners, and certain of these agreements contemplate that we will enter into additional arrangements with our partners for the commercial sale of electrolyte or licensing of our cell technology. For example, under the electrolyte supply agreement, we and SK On have agreed, at SK On’s option, to make a commercially reasonable effort to enter into a commercial electrolyte supply agreement for commercial battery cell production by SK On. However, we have not reached agreement on key terms for the commercial sale of our electrolyte or licensing of our cell technology with any of our partners, and the structure for realizing the monetary value of our products is unknown. We cannot guarantee that we will be able to agree with our partners on key commercial terms or that any terms will be financially beneficial for us.

We may not successfully commercially license our cell technology to OEMs or cell manufacturers or generate material revenue from our cell technology.

Our cell architecture is inherently complex and incorporates technology and components that have not been used in commercial battery cell production. As with our electrolyte, we expect our research and development efforts, as well as our partners’ research in development efforts, to extend in an iterative process even beyond delivery of cells using our technology to OEMs for validation in order to refine and optimize our cell technology. For example, we have learned, and may continue to learn, from validation efforts that our cells and cells using our technology contain defects or errors that cause the cells not to perform as expected. Fixing any such problems may require design changes or other research and development efforts, take significant time, and be costly. Any failure of cells using our technology to perform as expected could harm our ability to commercially license our cell technology as well as sell our electrolyte.

We expect to need, and expect our partners and customers to need, several additional years of research and development before cells using our technology will be advanced enough for us to realize material revenue from licensing our cell technology. We or

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our partners or customers must overcome significant hurdles to complete development, validation, and automotive qualification of cells using our technology, including:

We have encountered, and expect that we or our partners or customers may continue to encounter, engineering challenges and delays as we increase the dimensions and throughput of cells and cell components. In order to be commercially viable, cells using our technology will need to be capable of being produced at a high yield without compromising performance, and we or our customers will have to solve related packaging challenges in a way that is scalable and at an acceptable cost. If we or our customers are unable to overcome these engineering and mechanical hurdles, we may not succeed in commercially licensing our cell technology.

To generate material revenue from our cell technology, we will also need to identify customers willing to license our cell technology and enter into commercial license agreements. If we fail to bring our cell technology to market on a timely basis, products and technologies developed by others could render our cell technology obsolete or noncompetitive. Even if we complete development and succeed in entering into commercial license agreements, we may not start to generate revenues from such agreements until our partners or customers have retrofitted or constructed and deployed facilities to build cells using our technology at scale and we have constructed facilities to produce commercial volumes of our electrolyte. Any delay in development, automotive qualification, manufacturing scale-up, or construction of commercial electrolyte production facilities would delay our time to generate material revenue and may adversely impact our end-user relationships, including OEMs. Significant delays in providing commercial licenses to our technology could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We have only conducted preliminary safety testing on our cells. Any cells using our technology will require additional and extensive safety testing prior to being installed in EVs.

To achieve acceptance by OEMs and be installed in commercially available EVs, any cells using our technology will have to undergo extensive safety testing in addition to the preliminary safety testing we have conducted. We cannot guarantee that such tests will be successful. We have identified, and we or our partners may continue to identify, different or new safety performance issues during our cell development that have not been present previously. For example, during late 2023 and early 2024, a few EV cells we produced went into thermal runaway during testing. We have identified the root cause for these performance issues and continue actively working to improve safety performance, but we cannot guarantee that we or our partners will successfully mitigate the problem. We and our partners have made, and will continue to make, cell design and manufacturing process changes to address performance issues, which may lead to delays to or suspension of research and development projects or commercialization and in turn have a material adverse effect on our business, prospects, results of operations, and financial condition.

In addition, we have a limited frame of reference from which to evaluate the long-term performance of our technology. Issues or problems could arise once our technology has been deployed for a longer period, and we cannot guarantee that we or our partners will be able to detect and fix any defects or errors. If our customers determine our technology does not perform as expected, they may delay deliveries, terminate further orders, or initiate product recalls, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

If we are unable to attract and retain key employees and qualified personnel, our ability to compete could be harmed.

Our success depends on our ability to attract and retain our executive officers, key employees, and other qualified personnel, and our operations could be severely disrupted if we lost their services. Additionally, we have experienced, and may continue to experience, turnover in our executive officers, key employees, and other qualified personnel. For example, our Chief Operating Officer resigned in 2025. We continue to be highly dependent on the services of our executive officers and other senior technical and management personnel who would be difficult to replace. If we make strides in development of our technologies or competition in battery cell technology and EVs intensifies, the risk that competitors or other companies will seek to hire our personnel could increase. Further, competition for qualified personnel can be intense, and our ability to attract and retain them depends on our ability to provide competitive compensation and an attractive work environment. We may not be able to attract and retain qualified personnel in the

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future and may continue to experience turnover. Departure of key personnel or continued turnover may inhibit our ability to successfully attract and retain the personnel necessary to grow our business, and result in stockholder uncertainty and cause the price of our common stock and Warrants to decline, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

The non-exclusive nature of our agreements exposes us to the risk that our partners may elect to pursue other battery cell technologies or partners.

Our partners are motivated to develop and commercialize improved battery cell technologies. To that end, our partners have invested, and are likely to continue investing, in their own development efforts and, in certain cases, in agreements with our current and future competitors. Other technologies could be developed more rapidly or be more efficient or effective than ours. Our partners may elect to adopt and install their own or a competitor’s cell technology or products over ours, which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We have a limited number of joint development and other agreements relating to our technology. We cannot control the pace and timing of our partners’ efforts under these programs or the timing of potential commercialization of our technology, and our inability to enter into development relationships with additional partners may impair our ability to control the timing of our development activities, sell our electrolyte, or generate licensing revenue.

We currently have agreements with a limited number of partners, including BMW, Samsung SDI, and SK On, pursuant to which we are collaborating in the development and commercialization of our technology. We are actively seeking additional partnerships, including with other OEMs or Tier 1 battery manufacturers, in an effort to diversify our development and commercialization risks. However, the relationships we have with our existing partners and our partners’ rights under their respective agreements may deter other OEMs and battery manufacturers from working with us. If we are not successful in establishing partnerships with other OEMs or battery manufacturers, we will remain highly dependent upon our existing partners. Because we generally cannot control the pace or extent of our partners’ collaborative efforts with us, the pace of our efforts generally must align with that of each partner. Further, our partners’ interests and priorities may not align with our own. As a result, a failure to diversify may prevent us from controlling the timing at which our technology matures to commercialization and harm our prospects.

If we fail to meet certain milestones or requirements under certain of our agreements within the required time frames or extend or modify the terms of these agreements, our partners may terminate the agreements and discontinue their partnership with us.

We have non-exclusive agreements, including with BMW, to collaborate on the research and development of our cells. The terms of some of these agreements generally require us to continue our research and development of solid-state battery cells and component materials such that our products are capable of being deployed in EVs within the next few years. The Joint Evaluation Agreement requires us to achieve certain technical requirements, and the SK On R&D license includes certain contractual requirements for the SK On Line. Although we have extended some of these agreements, our products remain in the development stage, and we cannot guarantee that we will be able to complete research and development in the time frame required by these agreements or otherwise satisfy our obligations. If we do not meet these milestones or requirements or agree with our partners to extend or modify the terms of these agreements, we may not receive expected payments under these agreements and our partners may terminate their participation in the agreements without liability to us, which could adversely impact our reputation and prospects. In addition to terminating their participation under our existing agreements, our partners could elect not to pursue other development activities or arrangements and cease partnering with us, which could also adversely impact our reputation and prospects.

Our business depends on our ability to manage our relationships with existing and future partners, customers, suppliers, and contractors, and we may not successfully manage these business relationships.

We rely on a number of third parties in connection with development of our technology and performance on our contracts. Our partners, customers, suppliers, and contractors may have economic, business, or legal interests or goals that are inconsistent with ours. As a result, it may be challenging for us to resolve issues that arise in respect of the performance of our contracts, including our agreements with our partners. Any significant disagreements with these third parties may impede our ability to maximize the benefits of our partnerships and perform our contractual obligations and may slow the commercial roll-out of our technology. For example, we are utilizing a partner for installation of the SK On Line and expect to utilize this partner for assistance with validation activities under the SK On R&D license. A failure by our partner to satisfactorily and timely provide services could adversely impact our ability to fulfill our obligations under our line installation agreement with SK On and the SK On R&D license. In addition, if our counterparties are unable or unwilling to meet their economic or other obligations under our agreements, we may be required to fulfill those obligations alone, which could delay our research and development progress. Turnover in key personnel at our counterparties, including our partners, could adversely impact our ability to work productively with such counterparties and delay or impede our ability to achieve contractual milestones, requirements, or other objectives.

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The terms of certain agreements permit our partners to share in the intellectual property developed through the research and development efforts under their respective agreements. In certain circumstances, our ability to share developments gained through the course of performance of a particular agreement with our other partners may be limited, and our partners may be able to exploit certain of the intellectual property developed under their respective agreements in ways that are detrimental to us.

Certain of our agreements provide that, among other things, (i) any intellectual property jointly developed will be owned by both parties, with each party having the right to license that intellectual property to third parties in connection with the development of such party’s products, (ii) each party retains sole ownership of previously or independently developed intellectual property, and (iii) the partner receives a license to our solely developed intellectual property under the agreement for use in the partner’s products. To the extent that a development we make jointly with one of our partners involves such partner’s previously developed intellectual property, we may not be able to use any information gleaned in the course of performance under the agreement with such partner in performance of our other partners’ agreements, which could prevent us from scaling the development or deploying it in work with all of our partners. We cannot guarantee that we will maintain the access we need to our partners’ intellectual property, any jointly developed intellectual property will be adequately protected, or our partners will not seek to capitalize on jointly developed intellectual property for their sole benefit to the extent permitted by our agreements with them, such as through licensing agreements or other contractual arrangements they may enter with third parties that do not benefit us. Further, in certain of our agreements, we have agreed that our partners would receive certain rights to our intellectual property in certain circumstances, including if we were to fail to perform under commercial agreements that we may enter into in the future or otherwise abandon our business following the execution of such commercial agreements. If those provisions are triggered, certain of our partners may receive perpetual, irrevocable, royalty-free licenses to portions of our intellectual property, which may limit the profitability and competitive advantage offered by our intellectual property and adversely impact our revenue.

We are subject to risks relating to the construction of facilities for our short-term research and development and long-term electrolyte production requirements.

Our business plan contemplates that we will construct additional facilities for research and development and commercial electrolyte manufacturing. In the near term, we are working to expand our electrolyte material production capabilities at our existing facilities in Colorado through, for example, installation of equipment for continuous manufacturing of electrolyte. We may experience risks and complications associated with engineering and construction, including cost overruns and delays. Delay in the installation of a continuous production line could harm our development efforts and delay the expected expansion of our production capacity. In anticipation of additional demand for sulfide electrolyte in the Korean battery market, we also intend to pursue a potential partnership for commercial-scale electrolyte production in the Republic of Korea. To complement our technical expertise, we plan to explore potential partners with process capabilities and capital to support construction of a facility capable of producing up to 500 metric tons of electrolyte annually. However, there can be no assurance that we will establish a partnership to achieve these manufacturing goals in the near term or at all.

In the long term, we will need to construct facilities to produce commercial volumes of our electrolyte in connection with potential supply agreements, alone or with a potential partner. We have not secured a location or obtained the necessary licenses, approvals, permits, or consents for commercial-level electrolyte manufacturing facilities. In connection with constructing these facilities, we will need to identify and acquire the land or obtain leases for suitable locations that are appropriately zoned for activities involving hazardous materials, which will limit where such facilities may be located and may require us to pay a premium for any such real estate. If we fail to do so, or otherwise encounter delays or lose necessary licenses, approvals, permits, consents, or commercial agreements, we could face delays or terminations of construction or development activities. If our planned facilities do not become operable on schedule, or at all, or become inoperable, production of our electrolyte and our business will be harmed.

Even if we successfully license our cell technology, we are subject to risks relating to production scale manufacturing of cells using our technology through partners in the long term.

We aim to develop our cell technology in such a way as to enable our manufacturing partners to utilize existing lithium-ion cell manufacturing processes and equipment to produce cells using our technology. While we believe development of a manufacturing process compatible with existing lithium-ion cell manufacturing lines could provide significant competitive advantages, modifying or constructing these lines for production of cells using our technology could be more complicated or present significant challenges to our manufacturing partners that we do not currently anticipate. As with any large-scale capital project, any modification or construction of this nature could be subject to delays, cost overruns, or other complications. Any failure to commence commercial production on schedule would likely lead to additional costs and could delay our ability to generate meaningful revenues from selling our electrolyte material and licensing our cell technology. In addition, any such delay could diminish any “first mover” advantage we aim to attain, prevent us from gaining the confidence of OEMs, and open the door to increased competition. Any of the foregoing could hinder our ability to successfully grow our business and achieve a competitive position in the market.

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Collaboration with third parties to manufacture cells using our technology reduces our level of control over the manufacturing process. We could experience delays if our partners do not meet agreed upon timelines or experience capacity constraints. Potential disputes with partners could stop or slow cell production, and we could be impacted by adverse publicity related to our partners, whether or not such publicity is related to such partner’s collaboration with us or use of our technology. In addition, we cannot guarantee that our suppliers will not deviate from agreed-upon quality standards. Further, any partnerships with international third-party cell manufacturers or OEMs could expose us to the political, legal, and economic risks impacting the regions in which our partners’ manufacturing facilities are located, further reducing our control over the production process of cells using our technology.

If we are unable to enter license our cell technology on terms and conditions acceptable to us, we may need to contract with other third parties or create our own commercial production capacity. We may not be able to engage other third parties or establish or expand our own production capacity to meet our needs on acceptable terms or at all, and the expense and time required to adequately complete any transition or expansion may be greater than anticipated, which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We rely heavily on complex equipment for our operations, and the production of our technology involves a significant degree of risk and uncertainty in terms of operational performance and costs.

We rely heavily on complex equipment for our operations and the production of our electrolyte and cells. Integrating this equipment into the production of our electrolyte and cells is time intensive and requires us to work closely with the equipment providers to ensure that it works properly with our technology. This integration involves a degree of uncertainty and risk and may result in the delay in the scaling up of production or cause us to incur additional costs.

Our current manufacturing facilities require, and we expect that our future manufacturing facilities will require, large-scale machinery. Such machinery may unexpectedly malfunction and require repairs and spare parts to resume operations, which may not be available when needed. Because we generally do not maintain redundancies in our research and development facilities, unexpected malfunctions of our production equipment may significantly affect our operational efficiency. In addition, because this equipment has not historically been used to produce sulfide-based solid electrolytes or build solid-state battery cells, the operational performance and costs associated with this equipment is difficult to predict and may be influenced by factors outside of our control, such as failures by suppliers to deliver necessary components of our products in a timely manner and at prices and volumes acceptable to us; environmental hazards and associated costs of remediation; difficulty or delays in obtaining governmental permits; damages or defects in systems; industrial accidents; and fires, seismic activity, and other natural disasters.

Problems with our manufacturing equipment could result in it not performing to our expectations, personal injury or death, loss of production equipment, damage to our manufacturing facilities, monetary losses, delays, unanticipated fluctuations in production, environmental damage, administrative fines, increased insurance costs, and potential legal liabilities, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We rely on government contracts and grants for a portion of our revenue and to partially fund our research and development activities, and such contracts and grants are subject to a number of uncertainties, challenges, and risks.

We currently rely on government contracts and grants for a portion of our revenue and to partially fund our research and development activities. For example, the Assistance Agreement provides that DOE will provide us with funding of up to $50 million for our installation of equipment necessary for the continuous production of sulfide-based solid electrolyte material. Changes in government priorities or government funding reductions or delays could result in discontinuation of funding under, or termination of, our government contracts and grants. On January 20, 2025, an executive order, titled Unleashing American Energy (the “Executive Order”), paused disbursement of funds appropriated through the Bipartisan Infrastructure Law pending further review. Because the Assistance Agreement is funded under the Bipartisan Infrastructure Law, our continued receipt of funding under the Assistance agreement could be delayed or cancelled. In addition, the Executive Order declared a policy of eliminating the “electric vehicle (EV) mandate.” The government has discretion under the terms of the Assistance Agreement to discontinue future funding as the result of insufficient progress, change in strategic direction, or lack of available funding. The government could determine that the Assistance Agreement no longer effectuates DOE priorities, interpret the terms of the Assistance Agreement to permit termination for this reason, and terminate the agreement. The government could also require us to amend the terms of our government contracts and grants to receive continued funding. For example, the Assistance Agreement was amended in May 2025 to provide that DOE will submit periodic data requests to us in discharge of its oversight and administration responsibilities, and we must provide timely and complete responses to such data requests and any follow-up questions from the DOE. There can be no assurance that we will continue to receive funding under our government contracts and grants in the amounts that we expect or at all.

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Further, as a government contractor or subcontractor, we must comply with laws, regulations, and contractual provisions relating to the formation, administration, and performance of government contracts and grants, which may impose added costs on our business. Although our management team and other personnel devote a substantial amount of time to compliance initiatives, we cannot guarantee that our efforts will be successful. Any failure to comply with such laws, regulations, and provisions or satisfy our obligations under such contracts and grants could lead to termination of contract; civil or criminal penalties; withholding, delay, or disallowance of payments to us; reimbursement of the government for amounts previously received; claims for damages from our partners; contract price adjustments or refunds; suspension or debarment from obtaining government contracts and grants; or non-ordinary course audits and internal investigations, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

Obtaining grant funding and selling to government entities can be highly competitive, expensive, and time consuming, often requiring significant upfront time and expense without any assurance of success. Awards of contracts and grants may be subject to appeals, disputes, or litigation. Government contracts also often contain provisions and are subject to laws and regulations that provide government customers with additional rights and remedies not typically found in commercial contracts. For example, government customers may terminate existing contracts for convenience, with short notice, and without cause. Government contracts may also require work to be performed or products to be manufactured in a particular jurisdiction, include preferential pricing terms, or require us to obtain special certifications. If such certification requirements change or we fail to timely achieve or maintain compliance with applicable requirements, we may be at a competitive disadvantage and disqualified from selling our technology to government or quasi-government entities.

In addition to government contracts and grants, we benefit from certain government subsidies and economic incentives, including tax credits, rebates, and other incentives, that support the development and adoption of clean energy technology. We cannot guarantee that government grants, subsidies, and incentives will be available to us at the same or comparable levels in the future. Reduction, elimination, or discriminatory application of these grants, subsidies, or incentives may require us to seek additional financing, which may not be obtainable on commercially attractive terms or at all; adversely impact public sector demand for our technology; and diminish the competitiveness of the battery industry generally or our technology in particular. For example, the Executive Order indicated that the government would consider eliminating subsidies that favor EVs, and certain EV incentives were eliminated on September 30, 2025 under the reconciliation bill, commonly referred to as the One Big Beautiful Bill Act (“OBBBA”). Any change in our ability to secure these grants, subsidies, and incentives, including as a result of the OBBBA, could have a material adverse effect on our business, prospects, results of operations, and financial condition.

Substantial increases in the prices for our raw materials and components, some of which are obtained from a limited number of sources where demand may exceed supply, could materially and adversely affect our business.

We rely on third-party suppliers for materials, components, and equipment necessary to produce electrolyte and develop cells, including key supplies, such as Li2S, NMC, silicon, lithium metal foil, and manufacturing tools. We face risks relating to the timely availability, adequate quality, and consistency of these materials and components, including that we will be subject to demand shortages and supply chain challenges and generally may not have sufficient purchasing power to eliminate the risk of price increases for the raw materials and tools we need. Further, certain materials and components, including Li2S, are not currently produced at a scale we believe necessary to support our proposed commercial operations. If we are unable to enter into commercial agreements with our current suppliers or our replacement suppliers on favorable terms, or these suppliers experience difficulties meeting our requirements, the development and commercial progression of our technology may be delayed.

Separately, we may be subject to various supply chain requirements regarding, among other things, conflict minerals and labor practices. We may be required to incur substantial costs to comply with these requirements, which may include locating new suppliers if certain issues are discovered. We may not be able to find any new suppliers for certain raw materials or components required for our operations, or such suppliers may be unwilling or unable to provide us with products.

Any disruption in the supply of materials, components, or equipment could temporarily disrupt our research and development activities or production of our electrolyte or cells until we obtain the required material. For example, in 2023, we received material from one of our suppliers that did not meet our specifications, which caused delays in cell production and affected the performance of our cells. Changes in business conditions, unforeseen circumstances, governmental changes, transportation disruptions, and other factors beyond our control or which we do not currently anticipate could also affect our suppliers’ ability to deliver components or equipment to us on a timely basis. Currency fluctuations, trade barriers, tariffs, or shortages and other general economic or political conditions may limit our ability to obtain key materials, components, and equipment for our electrolyte or cells or significantly increase freight charges, raw material costs, and other expenses associated with our business.

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Accidents and severe weather conditions, natural disasters, or other catastrophic events could adversely impact our facilities and operations.

Some of our operations involve the manufacture and handling of a variety of explosive and flammable materials, and our research and development activities expose our employees to a number of potential occupational hazards. We have experienced, and may continue to experience, accidents from time to time. Among other things, we could experience leaks and ruptures, explosions, fires, transportation accidents involving our products, chemical spills, other discharges or releases of toxic or hazardous substances or gases, and other environmental and workplace safety incidents. For example, our employees could be exposed to toxic hydrogen sulfide as a result of the components we use being exposed to moisture, which could harm our employees, slow or stop production, and result in litigation, fines, increased insurance premiums, and workers’ compensation claims. Any such accident could harm our employees, damage our facilities, or adversely impact our operations. Further, because we do not have redundancies in our research and development facilities, an accident that damages our facilities could significantly disrupt our operations.

Severe weather conditions, natural disasters, and other natural events, such as floods, fires, earthquakes, typhoons, and health pandemics, such as the COVID-19 pandemic, could also affect our facilities and operations. For example, our facilities are located in a region which is affected by fires. In December 2021, the Marshall fire destroyed a significant number of buildings and disrupted a number of businesses in the Louisville, Colorado area. Further, our facilities and operations could also be adversely impacted by other events outside of our control, including power loss, telecommunications failures, cyberattacks, wars, riots, break-ins, and terrorist attacks. Given that we lack redundancies in our research and development facilities, any damage to our facilities could significantly disrupt our operations. Damage to our facilities or disruption of our operations could have a material adverse effect on our business, prospects, results of operations, and financial condition.

Further, we cannot guarantee that associated losses, claims, or liabilities will be covered by our insurance or any rights of indemnity or contribution that we have against others. We also cannot be sure that our existing insurance coverage will continue to be available on acceptable terms or in sufficient amounts to cover all of our potential losses. A loss that is uninsured or which exceeds policy limits could require us to pay substantial amounts, which could have a material adverse effect on our business, prospects, results of operation, and financial condition.

A global pandemic (e.g., COVID-19) and associated responses could disrupt our business and operations.

A global pandemic could have significant impact on economic activity and markets throughout the world. For example, the impact of COVID-19, including changes in consumer and business behavior, pandemic fears and market downturns, and restrictions on business and individual activities, created significant volatility in the global economy and led to reduced economic activity. Governmental authorities may implement measures in an attempt to contain a virus, such as travel bans and restrictions, quarantines, shelter-in-place orders, and business shutdowns, which may disrupt supply chains and impact our ability to continue our operations. Various aspects of our business cannot be conducted remotely, including many aspects of the research and development and manufacturing of our products.

The extent to which a future pandemic impacts our business, prospects, results of operations, and financial condition will depend on future developments, which are highly uncertain and cannot be predicted, such as the duration and spread of the pandemic, its severity, the actions taken to contain the virus or address its impact, the impact on us and our partners, contractors, suppliers, and customers, and how quickly and to what extent normal economic and operating activities can resume.

Risks Related to Industry and Market Trends

The battery market continues to evolve and is highly competitive, and we may not be successful in competing in this market or establishing and maintaining confidence in our long-term prospects among current and future partners and customers.

The battery market in which we compete continues to evolve and is highly competitive. To date, we have focused our efforts on our solid-state technologies, which we believe to be a promising alternative to conventional lithium-ion battery cell technology. However, lithium-ion battery cell technology has been widely adopted, and many of our current competitors have, and future competitors may have, greater resources than we do and may be able to devote greater resources to the development of their current and future technologies. These competitors may also have greater access to customers and may be able to establish cooperative or strategic relationships amongst themselves or with third parties that may further enhance their resources and competitive positioning. In addition, traditional lithium-ion battery manufacturers may continue to reduce cost and expand supply of conventional batteries and, therefore, adversely impact our prospects and ability to sell our products at market-competitive prices with sufficient margins.

Many OEMs, a number of battery technology companies, and other competitors are researching and investing in solid-state efforts and, in some cases, in battery cell development and production. For example, formation of the China All-Solid-State Battery

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Collaborative Innovation Platform (“CASIP”) was announced in 2024. CASIP has government-backed investment funds and intends to have a supply chain for solid state batteries up and running by 2030. We do not have exclusive relationships with any Tier 1 battery manufacturer or OEM to sell electrolyte or provide their future battery cell technologies, and investments made by these Tier 1 battery manufacturers or OEMs may result in technological advances earlier than, or superior in certain respect to, the technology we are developing. There are also a number of companies seeking to develop alternative approaches to solid-state technology. As new companies and larger, existing vehicle and battery manufacturers enter the solid-state battery cell space, we may lose any perceived or actual technological advantage we may have in the marketplace and suffer a decline in our market position.

The battery industry also competes with other emerging or evolving technologies, such as natural gas, advanced diesel, and hydrogen-based fuel cell powered vehicles. Developments in alternative technologies or improvements in battery technologies made by competitors may adversely impact the sales, pricing, and gross margins of our products. As technologies change, we will attempt to upgrade or adapt our products to continue to provide products with the latest technology. However, our products may become obsolete or our research and development efforts may not be sufficient to adapt to changes in or to create the necessary technology to effectively compete. If we are unable to keep up with competitive developments, including if competing technologies achieve lower prices or other emerging technologies enjoy greater policy support, our competitive position and growth prospects may be harmed. Similarly, if we fail to accurately predict and ensure that our solid-state technologies address customers’ changing needs or emerging technological trends, or if our customers fail to achieve the benefits expected from our technologies, our business will be harmed.

We must continue to commit significant resources to developing our technology in order to establish a competitive position, and these commitments must be made without knowing whether our investments will result in products customers will accept. We cannot guarantee that we will successfully identify customer requirements and develop and bring our electrolyte or cell technology to market on a timely basis, or that products and technologies developed by others will not render our electrolyte or cell technology obsolete or noncompetitive, any one of which could have a material adverse effect on our business, prospects, results of operation, and financial condition.

In addition, Tier 1 battery manufacturers, OEMs, and other customers may be less likely to purchase our electrolyte or license our cell designs if they are not convinced that our business will succeed in the long term. Similarly, suppliers and other third parties may be less likely to invest time and resources in developing business relationships with us if they are not convinced that our business will succeed in the long term. Accordingly, in order to build and maintain our business, we must instill and maintain confidence among current and future partners, customers, suppliers, analysts, ratings agencies, and other parties in our long-term financial viability and prospects. Maintaining such confidence may be complicated by certain factors, including those that are largely outside of our control, such as:

Our future growth and success are dependent upon consumers’ willingness to adopt EVs.

Our growth and future demand for our products are highly dependent upon the adoption by consumers of alternative fuel vehicles in general and EVs in particular. The market for new energy vehicles is still rapidly evolving, characterized by changing technologies, competitive pricing and factors, evolving government regulation and industry standards, and changing consumer demands and behaviors. For example, the federal government has eliminated certain incentives and subsidies that favor EVs, which could adversely impact demand for our technology. If the market for EVs in general does not develop as expected, or develops more slowly than expected, our business, prospects, results of operation, and financial condition could be materially and adversely affected.

We may not be able to accurately estimate future demand for our technology, which could result in a variety of inefficiencies in our business, hinder our ability to generate revenue, and cause us to incur additional costs or experience delays.

It is difficult to predict future demand for our technology and appropriately budget for our expenses, and we may have limited insight into trends that may emerge and affect our business. We anticipate being required to provide forecasts of our demand to our suppliers prior to the scheduled delivery of products to our customers. Currently, there is no historical basis for making judgments

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on the demand for our technology or our ability to develop, manufacture, and deliver our products. If we overestimate our requirements, our suppliers may have excess inventory, which could indirectly increase our costs. If we underestimate our requirements, our suppliers may have inadequate inventory, which could interrupt manufacturing of our products and result in delays in shipments and revenues. In addition, lead times for materials and components that our suppliers order may vary significantly and depend on factors such as the specific supplier, contract terms, and demand for each component at a given time. If we fail to order sufficient quantities of product components in a timely manner, the delivery of our products to our customers could be delayed, which could have a material adverse effect on our business, prospects, results of operation, and financial condition.

Risks Related to Intellectual Property

We rely heavily on owned and exclusively-licensed intellectual property, including patent rights, trade secrets, copyrights, trademarks, and know-how, and we may be unable to protect and maintain access to these intellectual property rights.

Our success depends on our ability to protect and maintain our intellectual property rights, and we may not be able to prevent unauthorized use of our owned and exclusively-licensed intellectual property. We rely on a combination of the intellectual property protections afforded by patent, copyright, trademark, and trade secret laws in the United States and other jurisdictions, as well as license agreements and other contractual protections, to establish, maintain, and enforce rights and competitive advantage in our technology. In addition, we seek to protect our intellectual property rights through non-disclosure and invention assignment agreements with our employees and consultants and through non-disclosure agreements with business partners and other third parties. Despite our efforts to protect our intellectual property rights, third parties, including our vendors, partners, customers, and consultants, have and may in the future attempt to copy or otherwise obtain and use our intellectual property without our consent or may decline to license or defend necessary intellectual property rights to us on terms favorable to our business. Further, our technology and intellectual property may be subject to theft or compromise via more indirect routes. For example, our products or components thereof may be reverse engineered by partners, customers, or other third parties, which could result in infringement of our patents or theft of our know-how or trade secrets.

Detecting and addressing unauthorized use of our intellectual property is difficult and costly, and the steps we have taken or will take to prevent misappropriation may not be sufficient. Any enforcement efforts we undertake, including litigation, could require involvement of the licensor, be time-consuming and expensive, and divert management’s attention. Additionally, existing intellectual property laws and contractual remedies may not provide the protection needed to safeguard our intellectual property. For example, a significant portion of our patent rights have been obtained through exclusive licenses. Because we do not own those patent rights, we have less control over their maintenance and enforcement, which may limit our ability to maintain any competitive advantage those patent rights provide. Failure to adequately protect our owned and exclusively-licensed intellectual property may result in our competitors using our intellectual property to offer products, loss of our competitive advantage, and harm to our reputation and could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We have not performed exhaustive searches or analyses of the intellectual property landscape of the battery industry and cannot guarantee that our technology, or its ultimate integration into EVs, does not infringe intellectual property rights of third parties. We may need to defend ourselves against intellectual property infringement claims, which may be time-consuming and cause us to incur substantial costs.

Others, including our competitors, may hold or obtain intellectual property rights that would prevent, limit, or interfere with our ability to make, use, develop, sell, license, lease, or market our technology or products. From time to time, we may receive inquiries from third parties relating to whether we are infringing their intellectual property rights and third parties may seek court declarations that they are not infringing upon our intellectual property rights. The defense of infringement claims may divert management’s attention, and we may incur significant expenses in addressing these matters. If we are determined to have infringed upon a third party’s intellectual property rights, we may be required to:

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We license patents and other intellectual property from third parties and may face claims that our use of this intellectual property infringes the rights of others. In such cases, we may seek indemnification from our licensors as permitted by our license agreements, but our rights to indemnification may depend on a number of factors, such as our use of the technology and whether we choose to retain control over conduct of the litigation. If our rights to indemnification are unavailable or insufficient to cover our costs and losses, future infringement claims could have a material adverse effect on our business, prospects, results of operations, and financial condition.

There are risks to our intellectual property based on our international business operations.

Patent, copyright, trademark, and trade secret laws vary significantly throughout the world. A number of foreign countries do not protect intellectual property rights to the same extent as the United States, and our intellectual property rights may not be as strong or as easily enforced outside of the United States. Efforts to protect against the unauthorized use of our intellectual property outside of the United States may be unsuccessful. Our international business operations may also expose us to material risks of theft of our technology and other intellectual property, including technical data, business processes, production processes, formulas, data sets, or other sensitive information. Conducting business in certain jurisdictions, housing our technology and other intellectual property abroad, and licensing our technology to foreign partners may increase our exposure to these risks.

Our patent applications may not result in issued patents, and our patent rights may be contested, circumvented, invalidated, or limited in scope.

Our patent portfolio includes patent applications. If our patent applications do not result in issued patents, the disclosures in those applications would become available to the public and we may be unable to prevent others from commercially exploiting products similar to ours. The status of patents involves complex legal and factual questions, and the breadth of claims allowed is uncertain. As a result, we cannot be certain that our patent applications will result in patents being issued or that our patents, and any patents that may be issued to us, will afford us adequate protection against competitors with similar technology. Others have numerous patents and pending patent applications in the same fields as our technology and may claim priority, which could prevent us from obtaining a particular patent. Our existing patents and patent applications, including those we have exclusively licensed, could be challenged on the basis that they are otherwise invalid or unenforceable. Patent applications filed in foreign countries may be subject to laws, rules, and procedures that differ from those of the United States, and we cannot guarantee that foreign patent applications related to issued U.S. patents will be issued.

Risks Related to Our Limited Operating History

Our business plan has yet to be tested, and we may not succeed in executing on our strategic plans, including commercialization.

As a research and development stage company, we face a number of difficulties normally encountered by new enterprises, including substantial risks and expenses in the course of establishing or entering new markets, organizing operations, and undertaking marketing activities. The likelihood of our success must be considered in light of these difficulties and the competitive environment in which we operate. There is nothing at this time upon which to base an assumption that our business plan will prove successful, and we may not be able to generate significant revenue, raise additional capital, or operate profitably. We will continue to encounter challenges frequently experienced by early commercial stage companies, including scaling up our infrastructure and managing our headcount, and may encounter unforeseen expenses, difficulties, or delays in connection with our growth. In addition, as a result of the capital requirements of our business, we can be expected to continue to sustain substantial operating expenses without generating sufficient revenue to cover expenditures. Any investment in our company is therefore highly speculative and could result in the loss of your entire investment.

It is difficult to predict our future revenues and appropriately budget for our expenses, and we have limited insight into trends that may emerge and affect our business. If actual results differ from our estimates or we adjust our estimates in future periods, our business, prospects, results of operations, and financial condition could be materially and adversely affected. Furthermore, our financial performance in one period may not be indicative of financial performance in future periods.

We are a research and development stage company with a history of financial losses and expect to incur significant expenses and continuing losses for the foreseeable future.

We incurred an operating loss of approximately $122.6 million for the year ended December 31, 2025 and an accumulated deficit of approximately $274.9 million from our inception in 2012 through December 31, 2025. We believe we will continue to incur operating losses each quarter until sales of significant quantities of our electrolyte or significant production of our cell designs begins. Development in materials sciences is not linear, and the pace of our efforts will depend in significant part on the level of engagement and extent of resources devoted to these efforts by our partners, making it difficult to predict when we will begin to recognize material

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revenues from our technology. In addition, we currently rely on a limited number of customers for a significant portion of our revenue. The loss of any of our major customers may increase our operating losses and have a material adverse effect on our business, prospects, results of operations, and financial condition.

The rate at which we will incur losses may be significantly higher in future periods as we, among other things, continue to incur significant expenses in connection with the design, development, and manufacturing of our technology; expand our research and development activities; invest in additional research and development and manufacturing facilities and capabilities; build up inventories of raw materials and other components; commence sales and marketing activities; develop our distribution infrastructure; and increase our general and administrative functions to support our growing operations. We may find that these efforts are more expensive than we currently anticipate or that these efforts may not result in revenues, which would further increase our losses.

We may require additional capital to support business growth, and this capital might not be available on commercially reasonable terms or at all.

Our expectations regarding our capital needs are dynamic, changing, and subject to various risks and uncertainties, including those described herein. For example, our budgets assume, among other things, that our development timeline progresses as planned and our corresponding expenditures are consistent with current expectations, but our timeline and expectations been derived based on internal estimates and discussions with our key partners only and do not factor in the possibility of additional partnerships. Further, our capital expenditures and operating and development requirements have increased materially as we further our research and development efforts, scale up production operations with our partners, and incur expenses as a public company, including insurance, financial reporting, legal, and audit costs. As we continue our progress toward commercialization, we expect that we will continue to incur significant operating expenses.

We may need additional capital before we recognize material revenues, which may not be available on commercially reasonable terms or at all. As a result, we may need to access the debt and equity capital markets to obtain additional financing in the future. Our ability to obtain additional financing will be subject to a number of factors, including:

These factors may make the timing, amount, terms, or conditions of additional financings unattractive to us. If we raise additional funds by issuing equity, equity-linked, or debt securities, those securities may have rights, preferences, or privileges senior to the rights of our then-issued and -outstanding equity or debt, and our existing stockholders may experience dilution. If we are unable to generate sufficient funds from operations or raise additional capital, we may be forced to take actions to reduce our capital or operating expenditures, including by not seeking potential acquisition opportunities, eliminating redundancies, or reducing or delaying our production facility expansions, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

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We may be unable to adequately control the costs associated with our operations and the components necessary to develop our technology.

We require significant capital to develop our technology. As we develop our technologies and scale our operations, we expect to continue to incur significant expenses, including those relating to research and development, raw material procurement, leases, sales, and distribution. Our ability to become profitable in the future will depend on our ability to successfully develop and market our products as well as our ability to control our costs. If we are unable to efficiently design, appropriately price, and sell and distribute our products, our anticipated margins, profitability, and prospects would be adversely impacted.

Our business and prospects, including our ability to control costs, could be adversely impacted by changes in macroeconomic conditions, such as changes in administration, inflation, interest rates, slower growth or recession, tariffs, international conflicts, trade disputes, sanctions, and government efforts to stimulate or stabilize the economy. Changes in macroeconomic conditions could happen rapidly, and we may fail to prevent or limit our losses or exposures.

If we fail to effectively manage our future growth, we may not be able to market and license the technology and know-how to sell our electrolyte or manufacture our cells.

The battery market in which we compete continues to evolve and is highly competitive. We intend to use our cash on hand to execute on our near-term objectives, which include strengthening relationships with our partners through continued execution, executing on our electrolyte development roadmap, promoting electrolyte product competitiveness, and remaining fiscally disciplined. That said, our management team has considerable discretion in the application of the funds available to us. We may invest these funds in a manner that does not improve our ability to market and sell our electrolyte or license the technology and know-how to manufacture our cells and ultimately result in a significant, or any, return for our stockholders. In addition, pending its use, we may invest our cash on hand in a manner that does not produce income or that loses value. Failure to effectively manage our growth could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We may not succeed in establishing, maintaining, and strengthening our brand, which could adversely impact customer acceptance of our technology.

Our business and prospects depend on our ability to develop, maintain, and strengthen our brand. The battery industry is intensely competitive, and we may not be successful in building, maintaining, and strengthening our brand. Some of our current and potential competitors, including many cell manufacturers and OEMs around the world, have greater name recognition, broader customer relationships, and substantially greater marketing resources than we do. If we do not develop and maintain a strong brand, we may lose the opportunity to build a critical mass of customers, which could adversely impact customer acceptance of our technology and have a material adverse effect on our business, prospects, results of operations, and financial condition.

Risks Related to Finance and Accounting

Incorrect estimates or assumptions by management in the preparation of our consolidated financial statements could adversely impact our reported assets, liabilities, income, revenue, or expenses.

The preparation of our consolidated financial statements requires management to make critical accounting estimates and assumptions that affect the reported amounts of assets, liabilities, stockholders’ equity, revenue, income, and expenses during the reporting periods. Incorrect estimates and assumptions by management could result in reported amounts that are overstated or understated and have a material adverse effect on our business, prospects, results of operations, and financial condition. See Note 2 of our audited financial statements included in this Report for more information.

We incur significant expenses and administrative burdens as a public company.

As a public company, we are subject to the reporting requirements of the Exchange Act, SOX, stock exchange listing requirements, and other applicable securities rules and regulations. These rules and regulations require us to incur significant legal, accounting, and financial compliance costs. In addition, advocacy efforts by stockholders and third parties may prompt additional governance and reporting requirements. Our management team and other personnel devote a substantial amount of time to compliance initiatives. Our compliance efforts may not be successful and may divert management’s attention from other business concerns and harm our business, financial condition, and results of operations.

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Our business could also be adversely impacted if we have deficiencies in our disclosure controls and procedures or internal control over financial reporting as required by SOX.

Pursuant to Section 404 of SOX, we are required to conduct annual assessments on the effectiveness of our internal control over financial reporting. These assessments require disclosure of any material weaknesses identified in our internal control over financial reporting, and we may not always be able to conclude, within the prescribed timeframe or at all, that our internal control over financial reporting is effective.

During the course of our review and testing, we may identify deficiencies, including material weaknesses, and be unable to remediate them before we must provide required reports. If we identify one or more material weaknesses, stockholders may lose confidence in the reliability of our financial statements and the price of our common stock and Warrants may decline. The existence of a material weakness could also limit our ability to prevent or detect a misstatement of our accounts or disclosures, which could result in a material misstatement of our consolidated financial statements. We cannot guarantee that efforts to remediate a material weakness will ultimately have the intended effects to permit us to timely file our quarterly and annual reports with the SEC, and we may become subject to litigation or investigations by the SEC or other regulatory authorities. If we are unable to timely file periodic reports or maintain compliance with applicable stock exchange listing requirements, stockholders may lose confidence in our financial reporting, the price of our common stock and Warrants may decline, our common stock and Warrants may be subject to delisting, and we may become subject to litigation or investigations by the SEC or other regulatory authorities. We cannot guarantee that the measures we take will be sufficient to avoid potential future deficiencies or material weaknesses.

We may not realize the anticipated benefits of our transactions with a strategic partner in the Republic of Korea and issuance of stock to two individuals who provide services to this partner.

In October 2024, we entered into a series of transactions with a strategic partner in the Republic of Korea, including a $400,000 investment for a 20% equity interest in the partner, loans of approximately $5.6 million to the partner, and receipt a warrant to purchase an additional 20% equity interest in the partner. See Note 11 of our audited financial statements included in this Report for more information. We cannot guarantee that we will receive amounts owed by the partner on time or at all.

Additionally, in connection with this series of transactions, we issued shares of common stock to two individuals who provide services to the partner to incentivize these individuals to provide services that directly and indirectly benefit us. For example, we are utilizing the partner as the installer for installation of the SK On Line and expect to utilize this partner for assistance with validation activities under the SK On R&D license. There can be no assurance that our issuance of shares of common stock to such individuals will provide the desired incentives. If the individuals fail to provide services that directly and indirectly benefit us or the partner prioritizes other customers ahead of us, our business, prospects, results of operations, and financial condition could be harmed.

Our ability to utilize any net operating losses or tax credit carryforwards to offset taxable income may be subject to certain limitations.

Section 382 of the Internal Revenue Code limits the ability of a corporation that undergoes an “ownership change” to use its pre-change net operating losses to offset future taxable income. An “ownership change” generally means a greater than 50 percentage point change (by value) in a corporation’s equity ownership by certain stockholders over a three-year period. If we have experienced an ownership change at any time since our incorporation, we may be subject to these limitations on our ability to utilize our net operating losses and other tax attributes to offset taxable income or tax liability. In addition, future changes in our stock ownership, which may be outside of our control, may trigger an ownership change.

Changes in tax law, regulations, or interpretations, including those resulting from the OBBBA, could suspend the use of net operating losses or tax credits, possibly with retroactive effect, and adversely impact our effective tax rate or cash flows. As a result, if we earn net taxable income, we could be unable or limited in our ability to use net operating losses and other tax attributes to offset such taxable income, which could result in increased future income tax liabilities. Similar provisions of state tax law may also limit our use of accumulated state tax attributes.

We maintain cash deposits in excess of federally insured limits. Adverse developments affecting financial institutions, including bank failures, could adversely impact our liquidity and financial performance.

We maintain domestic cash deposits in Federal Deposit Insurance Corporation, or FDIC, insured banks that exceed the FDIC insurance limits. The failure of a bank, or other adverse conditions in the financial or credit markets impacting financial institutions at which we maintain balances, could adversely impact our operations, liquidity, and financial performance. Bank failures; events involving limited liquidity, defaults, non-performance, or other adverse developments that affect financial institutions; or concerns or rumors about such events may lead to liquidity constraints. For example, on March 10, 2023, Silicon Valley Bank failed and was

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taken into receivership by the FDIC. We cannot guarantee that our deposits in excess of the FDIC or other comparable insurance limits will be backstopped by the U.S. or applicable foreign government, or that any bank or financial institution with which we do business will be able to obtain needed liquidity from other banks or government institutions or by acquisition in the event of a failure or liquidity crisis.

Risks Related to Legal and Regulatory Compliance

We have been, and may in the future be, subject to lawsuits, regulatory actions, or government investigations and inquiries which could lead us to incur significant costs or harm our reputation.

From time to time, we have been, and may become involved in significant litigation, regulatory actions, or government investigations and inquiries as well as legal proceedings and investigations arising in the normal course of business, such as commercial or contractual disputes; indemnity or warranty claims; disputes with potential customers, former employees, and suppliers; intellectual property matters; personal injury claims; environmental issues; tax matters; and employment matters. For example, on December 3, 2024, two purported stockholders filed a putative class action against the former officers and directors of Decarbonization Plus Acquisition Corporation III (“DCRC”), including Erik Anderson; Riverstone Holdings, LLC; and related sponsors and entities (the “Hamilton Defendants”). The Hamilton Defendants have demanded indemnification and advancement of defense costs from us, and we could be liable for the legal fees, defense costs, judgments, and/or settlement fees incurred by certain of the Hamilton Defendants. See Note 14 of our audited financial statements included in this Report for more information. Further, if we are successful in our commercialization efforts, we may become subject to product liability claims if our products do not perform as expected or malfunction.

The defense of lawsuits, regulatory actions, or government investigations and inquiries may divert our management’s attention, and we may incur significant expenses in addressing these matters. In the future, we may be required to pay damages or settlements or become subject to injunctions or other equitable remedies, and such claims or liabilities may not be covered by our insurance or by any rights of indemnity or contribution that we have against others. Although we maintain insurance in amounts we believe to be adequate, we may incur claims or liabilities for which we are not insured or that exceed the amount of our insurance coverage. The outcome of litigation, regulatory actions, and government investigations and inquiries is often difficult to predict, and future litigation, regulatory actions, or government investigations and inquiries could have a material adverse effect on our business, prospects, results of operations, and financial condition. Additionally, even if unsuccessful, a lawsuit, regulatory action, or government investigation could generate substantial negative publicity about our technology and business, inhibit commercialization of our products, and impede our ability to secure additional insurance coverage on commercially acceptable terms or at reasonable costs, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We are subject to substantial regulation, and changes to, or failure by us to comply with, these regulations could have a material adverse effect on our business, prospects, results of operations, and financial condition.

Our technology is subject to substantial regulation under international, federal, state, and local laws, including export control laws, import laws and regulations, and other trade regulations, and we incur significant costs in complying with these regulations as we develop and work to commercialize our technology. The U.S. government has made and continues to make significant changes in U.S. trade policy and has taken certain actions that could adversely impact U.S. trade, including imposing tariffs on certain goods imported into the United States, increasing scrutiny on foreign direct investment, and modifying export control laws applicable to certain technologies. In retaliation, other countries have implemented, and continue to evaluate, additional trade controls on a wide range of U.S. products and companies. Sustained uncertainty about, or worsening of, current global economic conditions and further escalation of trade tensions between the United States and its trading partners could result in a global economic slowdown and changes to global trade. Compliance with, and monitoring of, applicable regulations may be difficult, time-consuming, and costly. In addition, we may become subject to additional regulations in the future as we work toward commercialization, such as Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) Act in the European Union and the Act on the Registration and Evaluation of Chemicals (K-REACH) in the Republic of Korea. The nature and extent of any changes in regulations, and their impact on our business, may be unpredictable, and certain of our competitors may be better suited to withstand or react to these changes. Any changes in the laws and regulations to which we or our partners, contractors, suppliers, or customers are subject, or any changes in enforcement, administration, or interpretation of such laws or regulations, could interfere have a material adverse effect on our business, prospects, results of operations, and financial condition.

We are also subject to laws affecting our operations outside of the United States, including anti-bribery laws, anti-corruption laws, anti-money laundering, and export control laws. For example, our products—including our cells and related technology—are or may in the future be subject to trade and export control laws and regulations in the United States and other jurisdictions where we do business. As a result, an export license may be required to export or re-export our products and technology to certain countries or end-users or for certain end-uses or such export, re-export, or end uses may be prohibited. Obtaining the necessary export license for a

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particular sale or offering may not be possible or may be time-consuming and may result in the delay or loss of sales opportunities. Additionally, the FCPA prohibits bribery of foreign public officials, government employees, and political parties and requires public companies in the United States to keep books and records that accurately and fairly reflect their transactions. We may leverage third parties to sell our products and conduct our business abroad, and we or such third parties may interact with officials and employees of government agencies or state-owned or -affiliated entities. Regulators in the United States and a number of other countries have expanded their focus on enforcement of anti-bribery, anti-corruption, and export control laws in recent years. While we have implemented policies and procedures designed to ensure compliance by us and our personnel with the FCPA and other applicable anti-bribery, anti-corruption, anti-money laundering, and export control laws, such policies and procedures may not be effective in all instances to prevent violations. Any determination that we have violated these laws could subject us to, among other things, civil and criminal penalties, significant fines, profit disgorgement, injunctions on future conduct, securities litigation, suspension or disbarment from government contracts, and loss of import or export privileges, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition. Responding to any investigation or action may also divert our management’s attention, and we may incur significant expenses in defending an investigation or action.

Additionally, we and our partners, contractors, suppliers, and customers are subject to numerous international, federal, state, and local environmental health and safety laws and regulations, including those pertaining to management, storage, transportation and disposal of chemicals and wastes; emissions and contamination; and land use, fire code, and zoning. These laws and regulations may require us or our partners, contractors, suppliers, or customers to obtain permits; comply with procedures or restrictions; or incur significant capital, operating, and other costs associated with compliance. For example, our manufacturing process creates regulated air emissions, and we are required to utilize emissions control technology as a result. Our facilities are also subject to environmental permitting requirements, and permitting agencies with discretionary authority may refuse to issue required permits or impose costly permit conditions. Such actions could increase the cost, or lengthen the timeline, of developing additional manufacturing facilities. Future changes in permitted uses or conflicts with non-governmental organizations regarding the use of land for our manufacturing facilities could delay or prevent us from building additional research and development and manufacturing facilities, which could have a material adverse effect on our business, prospects, results of operations, and financial condition. Further, we rely on third-party contractors to ensure compliance with certain laws and regulations, including those relating to the disposal of wastes. If we are unable to secure contractors for key supply chain and disposal services, we could incur increased costs for compliance with environmental health and safety laws and regulations. Any determination that we or our contractors have violated these laws and regulations could subject us to, among other things, civil and criminal penalties, other liabilities under such laws and regulations, and liabilities for any impacts to human health or natural resources, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

We may be adversely impacted by a disruption or failure of our information technology infrastructure, data security breach, or failure to comply with privacy laws.

Our information technology infrastructure is critically important to our business operations. We rely heavily on a host of computer software and hardware systems, including our financial, accounting, and other data processing systems and the systems of third-party service providers. These information technology systems, many of which are managed by third parties or used in connection with shared service centers, may be susceptible to damage, disruptions, or shutdowns due to factors outside of our control, such as failures during the process of upgrading or replacing software, databases, or components thereof; maintenance or security issues or errors; issues with migration of applications to the “cloud;” power outages; hardware or software failures; cyberattacks and other cyber incidents; telecommunication failures; denial of service; user errors; or natural disasters, terrorist attacks, or other catastrophic events. Some of our information technology systems are not fully redundant, and our disaster recovery planning cannot account for all eventualities.

We and our third-party service providers face various security threats on a regular basis, including ongoing cybersecurity threats to and attacks on our and their information technology infrastructure. Cyberattack techniques change often, may not immediately be recognized, and can originate from a wide variety of sources. There has been an increase in the frequency, sophistication, and ingenuity of the data security threats we and our service providers face. We expect cyberattacks will continue to accelerate on a global basis in frequency and impact as threat actors increasingly use artificial intelligence and other techniques to circumvent security controls, evade detection, and remove forensic evidence. We have experienced threats to our data and systems, and existing measures may not prevent or limit the impact of a future incident. Additionally, the laws and enforcement mechanisms to protect our intellectual property from unauthorized use in new technologies like artificial intelligence and machine learning technologies are evolving and may be inadequate. Any unauthorized access to, acquisition of, or use of data belonging to us or our partners, contractors, suppliers, customers, or employees could result in loss or theft of confidential information or intellectual property, financial loss or misappropriation of funds, a disruption of our business, damage to our reputation and competitive position, and exposure to regulatory intervention and fines, and other liability, any one of which could have a material adverse effect on our business, prospects, results of operations, and financial condition. Additionally, if our partners, contractors, suppliers, and customers

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experience a breach or system failure, their business could be disrupted, which could result in a disruption in our supply chain or our research and development activities.

We incur significant costs in building and maintaining our information technology infrastructure; protecting against or remediating breaches, incidents, and disruptions; and monitoring and complying with evolving and complex data privacy regulations, which costs may increase over time. We are subject to a variety of laws and regulations regarding privacy, data protection, and data security, and many jurisdictions require companies to notify individuals, regulatory authorities, and others of security breaches involving certain types of data. We may expend significant resources to notify third parties of a breach, and our insurance coverage may not be sufficient to cover claims or liabilities related to a breach or incident. Further, we may be unable to comply with changes in data privacy regulations in the necessary timeframe or at reasonable cost, and any failure or alleged or perceived failure to comply with applicable data privacy regulations could result in regulatory investigations and proceedings, fines and other liability, and damage to our reputation.

We are subject to risks associated with artificial intelligence and machine learning technologies.

Artificial intelligence and machine learning technologies (collectively, “AI”) are complex and rapidly developing, and failure to effectively integrate AI into our business processes could adversely impact our business. However, there can be no assurance that use of AI will advance our technology development efforts, benefit our operations, or otherwise support our business objectives. Our use of emerging and evolving technologies, such as AI, presents business, reputational, and legal, regulatory, and compliance risks, including risks related to data sourcing, design and training methodology flaws, integration issues, security threats, privacy protections, intellectual property protections, and our ability to develop sufficient data protection measures. For example, our or others’ use of AI could result in inadvertent data leakage or unauthorized exposure of data belonging to us or our partners, contractors, suppliers, customers, or employees. Any of the foregoing could have a material adverse effect on our business, prospects, results of operations, and financial condition. In addition, our competitors may be more successful in their AI strategy and develop competitive products with the aid of AI, which could diminish any “first mover” advantage we aim to attain and adversely impact our revenue.

Further, our use of AI in connection with the creation or development of intellectual property may present challenges in asserting ownership over the resulting output given the position of courts and intellectual property offices in certain jurisdictions that human inventorship is required for patent protection of an AI-generated invention. Inventions or works of authorship created through the use of such technologies may be based on, rely on, or contain materials that were used in the training of such technologies and which are the intellectual property of others, which could further limit our ability to obtain intellectual property protection in such inventions or works of authorship and result in inadvertent infringement of others’ intellectual property rights. Failure to obtain intellectual property protection may result in our competitors using our intellectual property to offer products, loss of our competitive advantage, and harm to our reputation and could have a material adverse effect on our business, prospects, results of operations, and financial condition.

Changes in relevant tax laws or regulations, an adverse interpretation of these items by tax authorities, or changes to our obligations as a result of expanded business operations could adversely impact our effective tax rate and tax liability.

We are subject to income, withholding, and other tax obligations in the United States and the Republic of Korea and may become subject to taxation in additional international, state, and local jurisdictions with respect to income, operations, and subsidiaries related to those jurisdictions. Our future effective tax rates may fluctuate widely. Our effective tax rate in a given financial reporting period may be materially impacted by a variety of factors, such as the composition of operating income by tax jurisdiction; changes in deferred tax assets and liabilities, application of accounting and tax standard, and our pre-tax operating results; and new or revised tax legislation.

Additionally, we record tax expense based on our estimates of future payments, which may include reserves for uncertain tax positions in multiple tax jurisdictions, and valuation allowances related to certain net deferred tax assets. At any one time, many tax years may be subject to audit or examination by various taxing jurisdictions, and the results of these audits, examinations, and negotiations with taxing authorities may affect the ultimate settlement of these issues. Increases in our effective tax rate and tax liability could have a material adverse effect on our business, prospects, results of operations, and financial condition.

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Risks Related to our Common Stock and the Warrants

The price of our common stock and Warrants could be adversely impacted by sales of substantial amounts of our common stock or Warrants in the public market or the perception that such sales could occur.

Sales of a substantial number of shares of our common stock in the public market could occur at any time. For example, we have registered shares reserved for future issuance under our equity incentive compensation plans. Subject to the satisfaction of applicable vesting restrictions, the shares issued thereunder will be available for immediate resale in the public market.

In September 2025, we entered into an Equity Distribution Agreement (the “Distribution Agreement”) with Oppenheimer & Co. Inc., serving as agent (“Oppenheimer”), with respect to the ATM under which we may offer and sell, from time to time, shares of our common stock having an aggregate offering price of up to $150.0 million through Oppenheimer. Shares sold, or that may be sold, under the ATM have been, and will continue to be, available for immediate resale in the public market, unless purchased by “affiliates” (as defined in Rule 144 of the Securities Act). See Note 7 of our audited financial statements included in this Report for more information.

In January 2026, we issued 17,000,000 shares of our common stock, pre-funded warrants (the “Pre-Funded Warrants”) to purchase up to an aggregate of 5,807,018 shares of common stock, and warrants (the “Common Warrants”) to purchase up to an aggregate of 45,614,036 shares of common stock in the Registered Direct Offering. The Pre-Funded Warrants and Common Warrants are immediately exercisable; have an exercise price of $0.0001 per share and $7.25 per share, respectively; and may be exercised at any time. If not fully exercised prior to expiration and not in the money on the expiration date, the Common Warrants will expire on January 31, 2033.

Sales of a substantial number of shares of our common stock in the public market, or the perception that such sales might occur, could reduce the price of our common stock and Warrants. Future sales and issuances of shares of our common stock or other securities that are convertible into, or exchangeable or exercisable for, shares of our common stock, or the perception that such sales might occur, could also reduce the price of our common stock and Warrants.

The price of our common stock may be volatile, and holders of our common stock could lose a significant portion of their investment if the price of our common stock declines.

The price of our common stock may be highly volatile and could be subject to wide fluctuations. In addition, the trading volume in our common stock may fluctuate and cause significant price variations to occur. There can be no assurance that the price of our common stock will not fluctuate or decline significantly in the future. Some of the factors that could result in reductions or fluctuations in the price or trading volume of our common stock include:

In addition, the stock market in general has experienced extreme price and volume fluctuations that may be unrelated or disproportionate to the operating performance of companies like us. These broad market and industry factors may materially reduce the market price of our common stock, regardless of our operating performance.

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If securities or industry analysts do not publish, or publish inaccurate or unfavorable, research about us, our business, or our market, or if they adversely change their recommendations regarding our common stock, the price and trading volume of our common stock and Warrants could decline.

The trading market for our common stock and Warrants is influenced by the research and reports that industry or securities analysts may publish about us, our business, our market, or our competitors. If any of these analysts adversely change their recommendation regarding our common stock, or provide more favorable relative recommendations about our competitors, the price of our common stock and Warrants could decline. If any of these analysts cease coverage or fail to regularly publish reports on us, we could lose visibility in the financial markets, which could cause the price or trading volume of our common stock and Warrants to decline.

Information available in public media that is published by third parties, including blogs, articles, message boards, and social and other media may include statements not attributable to the Company and may not be reliable or accurate.

We have received, and may continue to receive, media coverage that is published or otherwise disseminated by third parties, including blogs, articles, message boards, and social and other media. This includes coverage that is not attributable to statements made by our directors, officers, or employees. Information provided by third parties may not be reliable or accurate and could materially impact the price of our common stock and Warrants, which could cause stockholders to lose their investments.

The issuance of additional shares of common stock under our equity incentive compensation plans or employee stock purchase plan or shares of preferred stock would dilute the interest of our stockholders and may present other risks.

We may issue a substantial number of additional shares of common stock under our equity incentive compensation plans or employee stock purchase plan. We may also issue preferred stock. The issuance of additional shares of common stock or shares of preferred stock:

Delaware law and provisions in our second amended and restated certificate of incorporation (our “Second A&R Charter”) and amended and restated bylaws (our “Bylaws”) might delay, discourage, or prevent a change in control of the Company or changes in our management, thereby depressing the price of our common stock and Warrants.

We are a Delaware corporation, and the anti-takeover provisions of the Delaware General Corporation Law (“DGCL”) may discourage, delay, or prevent a change in control by prohibiting us from engaging in a business combination with an interested stockholder for a period of three years after the date of the transaction in which the person became an interested stockholder, even if a change of control would be beneficial to our existing stockholders. In addition, provisions of our Second A&R Charter and Bylaws may make the acquisition of us more difficult, deter hostile takeovers, or delay or prevent changes in our management. Among other things, these provisions:

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Our Bylaws designate the Court of Chancery of the State of Delaware as the exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, employees, or agents.

Our Bylaws provide that, unless we consent in writing to the selection of an alternative forum, to the fullest extent permitted by law, the Court of Chancery of the State of Delaware (or, if the Court of Chancery does not have jurisdiction, another state court in Delaware or the federal district court for the District of Delaware) shall be the sole and exclusive forum for (i) any derivative action or proceeding brought on behalf of Solid Power, (ii) any action asserting a claim of breach of a fiduciary duty owed by any director, stockholder, officer or other employee of Solid Power to us or our stockholders, (iii) any action arising pursuant to any provision of the DGCL or our Second A&R Charter or Bylaws (as either may be amended from time to time), or (iv) any action asserting a claim governed by the internal affairs doctrine, except for, as to each of (i) through (iv) above, any claim as to which such court determines that there is an indispensable party not subject to the jurisdiction of such court (and the indispensable party does not consent to the personal jurisdiction of such court within ten days following such determination), which is vested in the exclusive jurisdiction of a court or forum other than such court or for which such court does not have subject matter jurisdiction.

In addition, our Bylaws provide that, unless we consent in writing to the selection of an alternative forum, the federal district courts of the United States of America will be the sole and exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act of 1933, as amended (the “Securities Act”), against any person in connection with any offering of our securities, including, without limitation and for the avoidance of doubt, any auditor, underwriter, expert, control person, or other defendant. Pursuant to the Exchange Act, claims arising thereunder must be brought in federal district courts of the United States of America.

The choice of forum provision in our Bylaws may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers, employees, or agents, which may discourage lawsuits with respect to such claims. However, our stockholders will not be deemed to have waived (and cannot waive) our compliance with federal securities laws and the rules and regulations thereunder. If a court were to find the choice of forum provision in our Bylaws to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could have a material adverse effect on our business, prospects, results of operations, and financial condition.

The Common Warrants, Public Warrants (as defined below), or Private Placement Warrants (as defined below) may not ever be in the money, and they may expire worthless.

The exercise price for both our publicly-traded warrants (the “Public Warrants”) and the warrants sold in a private placement as part of our initial public offering or acquired through a conversion of a working capital loan (the “Private Placement Warrants” and collectively with the Public Warrants, Pre-Funded Warrants, and Common Warrants, the “Warrants”) is $11.50 per share of common stock. The Common Warrants have an exercise price of $7.25 per share. There can be no assurance that the Public Warrants, Private Placement Warrants, and Common Warrants will ever be in the money prior to their expiration, and as such, the Public Warrants, Private Placement Warrants, and Common Warrants may expire worthless.

We may amend the terms of the Warrants in a manner that may be adverse to holders with the approval of the holders of at least 50% of the then-outstanding Public Warrants (or, if applicable, 65% of the then-outstanding Public Warrants and 65% of the then-outstanding Private Placement Warrants, voting as separate classes).

Our Public Warrants and Private Placement Warrants were issued in registered form under our warrant agreement with Continental Stock Transfer & Trust Company which provides that the terms of the Public Warrants and Private Placement Warrants may be amended without the consent of any holder to cure any ambiguity or correct any defective provision, but requires the approval by the holders of at least 50% of the then-outstanding Public Warrants to make any other changes. However, if an amendment would adversely and differently affect either the Public Warrants or Private Placement Warrants, the approval of 65% of the then-outstanding Public Warrants and 65% of the then-outstanding Private Placement Warrants, voting as separate classes, is required. Accordingly, we may amend the terms of the Public Warrants and Private Placement Warrants in a manner adverse to a holder if holders of at least 50% of the then-outstanding Public Warrants (or, if applicable, 65% of the then-outstanding Public Warrants and 65% of the then-

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outstanding Private Placement Warrants, voting as separate classes) approve of such amendment. Although our ability to amend the terms of the Public Warrants and Private Placement Warrants with approval of the holders of at least 50% of the then-outstanding Public Warrants (or, if applicable, 65% of the then-outstanding Public Warrants and 65% of the then-outstanding Private Placement Warrants, voting as separate classes) is unlimited, examples of such amendments could be amendments to, among other things, increase the exercise price of the Public Warrants and Private Placement Warrants, convert the Public Warrants and Private Placement Warrants into cash or stock (at a ratio different than initially provided), shorten the exercise period, or decrease the number of shares of our common stock purchasable upon exercise of a Public Warrant or Private Placement Warrant.

Holders of Warrants have no rights as common stockholders until such holders exercise their Warrants and acquire shares of our common stock.

Until holders of Warrants acquire shares of our common stock upon exercise of such warrants, such holders of will have no rights with respect to the shares of our common stock underlying such Warrants. Upon exercise of the Warrants, the holders will be entitled to exercise the rights of a common stockholder only as to matters for which the record date occurs after the exercise date.

In certain circumstances, we may be required to settle the value of the Common Warrants in cash.

If we enter into a “fundamental transaction” ​(as described in the Common Warrants and generally including any merger with or into another entity, sale of all or substantially all of our assets, tender offer or exchange offer, or reclassification of our shares of common stock) at any time while the Common Warrants are outstanding, then a Common Warrant holder will have the right to receive alternative consideration for each share of our common stock that would have been issuable upon such exercise immediately prior to the occurrence of such transaction. Such alternate consideration would include (i) the number of shares of common stock of the successor or acquiring corporation or of our company, if it is the surviving corporation, and (ii) any additional consideration receivable upon or as a result of such transaction by a holder of the number of shares of common stock for which the Common Warrant is exercisable immediately prior to such event. In addition, we or the successor or acquiring corporation may be required, at the option of each holder of Common Warrants exercisable for 30 days following completion of the fundamental transaction, to purchase the Common Warrants for an amount of cash equal to the Black-Scholes value of the unexercised Common Warrants on the date of consummation of the transaction.

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In addition to meeting our development goals, commercialization and future growth and demand for our products are highly dependent upon consumers adopting EVs. The market for new energy vehicles is still rapidly evolving due to emerging technologies, competitive pricing, government regulation and industry standards, and changing consumer demands and behaviors.

Basis of Presentation

We currently conduct our business through one operating segment and one reportable segment. As a research and development company with no commercial operations, our activities to date have been limited and conducted primarily in the United States and the Republic of Korea. Our historical results are reported under U.S. generally accepted accounting principles (“GAAP”) and in U.S. dollars.

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Direct Costs

Direct costs consisted of costs incurred to support execution of our collaborative and government agreements. Direct costs remained consistent for the year ended December 31, 2025 compared to December 31, 2024. The majority of the direct costs during the years ended December 31, 2025 and 2024 were driven by the services provided and equipment purchased by Dahae Energy Co., Ltd. (“Dahae”), a strategic partner serving as installer of the SK On Line. Direct costs during the year ended December 31, 2025 included materials and internal labor to support site acceptance testing at SK On’s facility under the line installation agreement.

We expect direct costs to continue to correlate with our recognized revenue as we complete site acceptance testing and continue to execute on the project milestones supporting construction of our continuous electrolyte production pilot line.

Research and Development

Research and development-related operating expenses largely consisted of employee compensation and employee benefit costs incurred to maintain our skilled workforce, including engineers, scientists, operators, chemists, and technicians. Total research and development costs remained consistent during the year ended December 31, 2025 compared to the same period ended December 31, 2024.

Selling, General and Administrative

Selling, general and administrative expenses were largely comprised of employee compensation and personnel related costs for our administrative functions as well as costs driven by insurance and regulatory requirements. Selling, general and administrative expenses decreased by $2.4 million in the year ended December 31, 2025 compared to the year ended December 31, 2024 primarily due to a decrease in stock-based compensation expense as a result of forfeitures of unvested stock options and restricted stock units. The decrease of selling, general and administrative expenses was also driven by the decision to reduce external contractor and consultant support.

Overall, we expect operating expenses for 2026 to remain consistent with 2025 as we continue to execute on our objectives and focus on cost reduction efforts to offset overall rising costs.

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Nonoperating income and expense includes interest income, the non-cash impact from the change in the fair value of our warrant liabilities, and other irregular items, such as the gain or loss on asset sales and impacts from transacting in foreign currency. For the year ended December 31, 2025, nonoperating income and expense decreased $2.8 million compared to the year ended December 31, 2024 primarily due to a decrease in interest income earned as well as a change in other expense.

Interest income earned decreased $4.5 million for the year ended December 31, 2025 compared to the prior period, primarily due to a reduction in the average available-for-sale securities balance earning interest of $301.9 million in 2025 compared to $364.5 million in 2024.

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Other expense decreased $2.3 million for the year ended December 31, 2025 compared to the year ended December 31, 2024. The decrease in other expense was due to a decrease in loss on sale of assets, with a loss of $0.6 million in 2025 compared to $2.0 million in 2024, and an $0.8 million loss on the extinguishment of a promissory note executed and extinguished in 2024.

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Overall, we expect nonoperating income and expense for 2026 to remain consistent with 2025 and 2024 other than interest income, which we expect to increase in 2026 as the balance in our investment portfolio has increased as a result of the Registered Direct Offering that occurred in January 2026. 

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Stock Repurchase Program

On January 23, 2024, we announced that our Board approved a stock repurchase program authorizing us to purchase up to $50 million of our outstanding common stock. Under the stock repurchase program, we were authorized to purchase shares of our common stock from time to time until the program’s expiration on December 31, 2025. During the year ended December 31, 2025, we repurchased 3,361,396 shares of common stock at an average cost of $1.05 per share for an aggregate cost of approximately $3.53 million. During the year ended December 31, 2024, we repurchased 5,704,401 shares of common stock at an average cost of $1.59 per share for an aggregate cost of approximately $9.07 million.

Cash used in operating activities:

Cash used in operating activities for the year ended December 31, 2025 increased $9.5 million compared to the year ended December 31, 2024. This increase was primarily driven by a decrease of $10.9 million of cash received from our partners, with $11.8 million of cash received from our partners in 2025 compared to $22.7 million in 2024. Cash received from partners is paid based on achievement of milestones and changes based on the timing and the payment terms in our arrangements.

Cash used for operations independent of cash received from our partners decreased $1.3 million for the year ended December 31, 2025 compared to the prior year. This change was driven by a decrease in direct payments and an increase in payments for operating activities.

Direct payments primarily consisted of payments to Dahae for services, equipment, and supplies supporting installation of the SK On Line. Total payments to Dahae were $6.3 million in the year ended December 31, 2025 compared to $11.0 million in 2024. This decrease was due to the timing of achieving milestone and the associated payment terms under our arrangement with Dahae.

Payments supporting the remainder of our operations which includes employee compensation, facility expenses, purchases of materials, and hazardous waste removal increased $3.4 million in the year ended December 31, 2025 compared to the same period in 2024, primarily due to timing of our annual contract payments.

We expect cash used in operating activities to decrease in 2026 as a result of decreased direct payments following completion of site acceptance testing under the line installation agreement.  

Cash provided by (used in) investing activities:

Cash provided by investing activities decreased $84.1 million in the year ended December 31, 2025 compared to the year ended December 31, 2024 due primarily to proceeds received under the ATM during the year ended December 31, 2025 and the resulting impact on our investment portfolio.

Proceeds from sales of our available-for-sale securities contributed to a year-over year net cash flow decrease of $95.6 million. This change was driven by the use of $88.8 million of proceeds, net of offering costs, commissions, and fees, in 2025 for the sale of shares of our common stock under the Distribution Agreement that were subsequently deployed to expand our investment portfolio.

Cash used for capital expenditures and intangibles decreased $5.3 million in the year ended December 31, 2025 compared to the year ended December 31, 2024. Capital expenditures were primarily for the construction of our continuous electrolyte production pilot line, partially offset by receipt of $3.1 million under the Assistance Agreement, in 2025 and construction of the EIC in 2024.

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Cash paid for a loan receivable to our equity method investee, Dahae, was $0 in the year ended December 31, 2025 and $5.6 million in the year ended December 31, 2024.

We expect cash used in investing for capital expenditures for 2026 to increase as we transition from the design to construction and commissioning of the continuous pilot line construction. 

Cash provided by (used in) financing activities:

Cash provided by financing activities increased $98.9 million in the year ended December 31, 2025 compared to the year ended December 31, 2024 due to proceeds received under the ATM. Total proceeds received were $88.8 million, net of offering costs, commissions, and fees, for the sale of shares of our common stock under the Distribution Agreement. The remaining increase was due to proceeds from the exercise of stock options, which provided an increase of $5.0 million of cash in 2025 compared to 2024, and the use of $5.5 million less cash for the repurchase of common stock in 2025 compared to 2024.

We expect cash provided by financing activities for 2026 to increase due to the Registered Direct Offering which occurred in January 2026. 

Off-Balance Sheet Arrangements

We are not a party to any off-balance sheet arrangements.

Critical Accounting Estimates

Our discussion and analysis of financial condition and results of operations are based on our financial statements included elsewhere or incorporated by reference in this Report. The preparation of our financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, and expenses. We base our estimates on past experience, technical analysis and other assumptions that we believe are reasonable under the circumstances, and we evaluate these estimates on an ongoing basis. Actual results may differ from those estimates.

Our critical accounting estimates are those that materially affect our financial statements and involve difficult, subjective, or complex judgments by management. A thorough understanding of these critical accounting estimates is essential when reviewing our financial statements. We believe that the critical accounting estimates listed below involve the most difficult management decisions because they require the use of significant estimates and assumptions as described above.

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Item 8. Financial Statements and Supplementary Data

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challenging, subjective, and complex judgment required by management to develop these estimates. Auditing management’s estimates concerning revenue under these arrangements required significant auditor judgment and extensive effort to evaluate the reasonableness of management’s estimates.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to revenue recognized under SK On agreements included the following, among others:

/s/ Deloitte & Touche LLP

Denver, CO

February 24, 2026

We have served as the Company's auditor since 2025.

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Solid Power, Inc.

Consolidated Balance Sheets

(in thousands, except par value and number of shares)

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See accompanying Notes to Consolidated Financial Statements.

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Solid Power, Inc.

Consolidated Statements of Operations and Comprehensive Loss

(in thousands, except number of shares and per share amounts)

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See accompanying Notes to Consolidated Financial Statements.

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Solid Power, Inc.

Consolidated Statements of Stockholders’ Equity

(in thousands, except number of shares)

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See accompanying Notes to Consolidated Financial Statements.

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Solid Power, Inc.

Consolidated Statements of Cash Flows

(in thousands, except par value, share amounts, and per share amounts)

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