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EP 4 584 833 A1

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(43) Date of publication: 16.07.2025 Bulletin 2025/29 (21) Application number: 23767909.7 (22) Date of filing: 08.09.2023

(51) International Patent Classification (IPC):  H01M 4/62(2006.01) H01M 4/131(2010.01) H01M 4/1391(2010.01) H01M 4/525(2010.01) H01M 4/04(2006.01) H01M 4/136(2010.01) H01M 4/1397(2010.01) H01M 4/58(2010.01) (52) Cooperative Patent Classification (CPC): H01M 4/131; H01M 4/136; H01M 4/1391; H01M 4/1397; H01M 4/525; H01M 4/58; H01M 4/0404; H01M 4/623; Y02E 60/10 (86) International application number: PCT/EP2023/074758 (87) International publication number: WO 2024/052543 (14.03.2024 Gazette 2024/11)

(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: KH MA MD TN (30) Priority: 09.09.2022 EP 22306335 (71) Applicant: ARKEMA FRANCE 92800 Puteaux (FR)

(72) Inventors: LIU, Yuanqin King of Prussia, Pennsylvania 19406 (US) KAHN, Andrew King of Prussia, Pennsylvania 19406 (US) KENT, Daniel King of Prussia, Pennsylvania 19406 (US) LI, Nan King of Prussia, Pennsylvania 19406 (US) MATHIEU, Cyrille 69491 Pierre-Bénite Cedex (FR) (74) Representative: Arkema Patent  Arkema France DRD-DPI 51, Esplanade du Général de Gaulle CS 10478 92907 Paris La Défense Cedex 92907 Paris La Défense Cedex (FR)