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EP 4 533 576 A1

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(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 22732469.6 (22) Date of filing: 31.05.2022

(51) International Patent Classification (IPC):  H01M 8/2483(2016.01) H01M 8/0276(2016.01) C25B 9/60(2021.01) H01M 8/2432(2016.01) H01M 8/2404(2016.01) (52) Cooperative Patent Classification (CPC): H01M 2008/1293; H01M 8/2483; H01M 8/2432; H01M 8/0278; H01M 8/2404; C25B 9/60; C25B 1/042; C25B 9/75; C25B 15/08 (86) International application number: PCT/EP2022/064817 (87) International publication number: WO 2023/232236 (07.12.2023 Gazette 2023/49)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicants: Ceres Power Limited Horsham, West Sussex RH13 5PX (GB) Robert Bosch GmbH 70442 Stuttgart (DE)	(72) Inventors: KEGEL, Timo 96047 Bamberg (DE) DOMANSKI, Tomasz Horsham West Sussex RH13 5PX (GB) (74) Representative: DREISS Patentanwälte PartG mbB  Friedrichstraße 6 70174 Stuttgart 70174 Stuttgart (DE)