美国电池科技公司美股招股说明书(2025-09-19版)

Common Stock We have entered into an ATM sales agreement (the “Sales Agreement”) with Virtu Americas LLC (the “Sales Agent”), dated April 3,2024, relating to the sale of shares of our common stock, par value $0.001 per share, offered by this prospectus supplement and theaccompanying base prospectus. In accordance with the terms of the Sales Agreement, we may offer and sell shares of our commonstock from time to time up to an aggregate offering price of up to $50,000,000 through or to the Sales Agent, acting as sales agent orprincipal. Upon our delivery of a placement notice and subject to the terms and conditions of the Sales Agreement, the Sales Agent may sellshares of our common stock by methods deemed to be an “at the market offering” as defined in Rule 415(a)(4) promulgated under theSecurities Act of 1933, as amended (the “Securities Act”). The Sales Agent is not required to sell any specific number or dollar amountof securities, but will use its commercially reasonable efforts consistent with its normal trading and sales practices and applicable stateand federal laws, rules and regulations and the rules of The Nasdaq Stock Market LLC to sell such shares of our common stock. Thereis no arrangement for funds to be received in any escrow, trust or similar arrangement. We will pay the Sales Agent a total commission for its services in acting as agent in the sale of our common stock of up to 3.0% of thegross sales price per share of all shares sold through the Sales Agent as agent under the Sales Agreement. See “Plan of Distribution”for information relating to certain expenses of the Sales Agent to be reimbursed by us. In connection with the sale of common stock on our behalf, the Sales Agent will be deemed to be an “underwriter” within the meaningof the Securities Act and the compensation to the Sales Agent will be deemed to be underwriting commissions or discounts. We havealso agreed to provide indemnification and contribution to the Sales Agent with respect to certain liabilities, including liabilities underthe Securities Act or the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Our common stock is traded on The Nasdaq Stock Market LLC (“Nasdaq”) under the symbol “ABAT.” On September 16, 2025, thelast reported sale price of our common stock on the Nasdaq was $2.49 per share. We are a smaller reporting company under Rule 405 of the Securities Act and, as such, have elected to comply with certain reducedpublic company reporting requirements for this prospectus supplement, the documents incorporated by reference herein and futurefilings. INVESTINGIN OUR SECURITIES INVOLVES RISKS.WE STRONGLY RECOMMEND THAT YOU READCAREFULLY THE RISKS WE DESCRIBE IN THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING BASEPROSPECTUS, AS WELL AS THE RISK FACTORS THAT ARE INCORPORATED BY REFERENCE INTO THISPROSPECTUS SUPPLEMENT AND THE ACCOMPANYING BASE PROSPECTUS FROM OUR FILINGS MADE WITHTHE SECURITIES AND EXCHANGE COMMISSION. SEE “RISK FACTORS” BEGINNING ON PAGE S-6 OF THISPROSPECTUS SUPPLEMENT AND PAGE 6 OF THE ACCOMPANYING BASE PROSPECTUS. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved thesecurities we may be offering or determined if this prospectus supplement is accurate or complete. Any representation to thecontrary is a criminal offense. The date of this prospectus supplement is September 19, 2025 TABLE OF CONTENTS Prospectus Supplement PageABOUT THIS PROSPECTUS SUPPLEMENTS-1CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTSS-2PROSPECTUS SUPPLEMENT SUMMARYS-3THE OFFERINGS-5RISK FACTORSS-6USE OF PROCEEDSS-13DIVIDEND POLICYS-14CAPITALIZATIONS-15PLAN OF DISTRIBUTIONS-16LEGAL MATTERSS-17EXPERTSS-18DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIESS-19WHERE YOU CAN FIND MORE INFORMATIONS-20INCORPORATION BY REFERENCES-21 You should rely only on the information incorporated by reference or provided in this prospectus supplement and the accompanyingbase prospectus. Neither we nor any party on our behalf have authorized anyone to provide you with different information. If anyoneprovides you with different or inconsistent information, you should not rely on it. This prospectus supplement and the accompanyingbase prospectus do not constitute an offer to sell, or a solicitation of an offer to purchase, the securities offered by this prospectussupplement and the accompanying base prospectus in any jurisdiction where it is unlawful to make such offer or solicitation. Youshould assume that the information contained in this prospectus supplement or the accompanying base prospectus, or any documentincorporated by reference in this prospectus supplement or the accompanying base prospectus, is accurate only as of the date of thoserespective documents. Neither the delivery of this prospectus supplement nor any distribution of securities pursuant to this prospectussupplement shall, under any circumstances, create an