(19)

(11)

EP 4 824 889 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24841533.3 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  H01M 50/109(2021.01) H01M 50/131(2021.01) H01M 50/164(2021.01) H01M 50/186(2021.01) H01M 50/197(2021.01) H01M 50/126(2021.01) H01M 4/38(2006.01) H01M 50/124(2021.01) H01M 50/153(2021.01) H01M 50/171(2021.01) H01M 50/193(2021.01) H01M 50/198(2021.01) H01M 50/572(2021.01) H01M 6/16(2006.01) (52) Cooperative Patent Classification (CPC): H01M 50/109; H01M 50/572; H01M 6/16; H01M 4/382; H01M 50/171; H01M 50/164; H01M 50/153; H01M 50/186; H01M 50/193; H01M 50/197; H01M 50/198; H01M 50/126; H01M 50/1245; H01M 50/131; Y02E 60/10 (86) International application number: PCT/US2024/059948 (87) International publication number: WO 2025/128939 (19.06.2025 Gazette 2025/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 15.12.2023 US 202318542560 (71) Applicant: Duracell U.S. Operations, Inc. Wilmington, DE 19801 (US)	(72) Inventors: KNOTTS, Jonathan Nashua, NH 03063 (US) MOONEY, Kayla Wilmington, DE 19801 (US) PAPPAS, David, L. Bethel, CT 06801 (US) (74) Representative: Eisenführ Speiser  Patentanwälte Rechtsanwälte PartGmbB Johannes-Brahms-Platz 1 20355 Hamburg 20355 Hamburg (DE)