Judge Rules Duracell Must Face BASF Battery Secret Lawsuit

By EC Assets · Published 28 April 2026 · Updated 28 May 2026

A US judge has ruled that Duracell, a subsidiary of Berkshire Hathaway, must face a lawsuit filed by German chemical company BASF. BASF alleges that Duracell stole trade secrets related to lithium-ion battery technology. The complaint, filed in a Delaware federal court, centers on information BASF claims it developed for electrolyte solutions. BASF initiated the lawsuit in March, accusing Duracell of misappropriating its proprietary battery technology. The company asserts it invested significant resources into developing these trade secrets. Duracell maintains that it did not steal any technology from BASF. The legal dispute highlights the competitive landscape within the battery manufacturing sector. Companies are increasingly focused on developing advanced battery technologies. The legal proceedings could shed more light on the development and protection of intellectual property in this industry. The case will now proceed in the US legal system. Further court filings and potential discoveries are expected. This article is intended for informational purposes only. It does not constitute investment advice.