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EP 4 771 684 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24758287.7 (22) Date of filing: 23.08.2024

(51) International Patent Classification (IPC):  H01M 4/04(2006.01) H01M 4/505(2010.01) H01M 4/62(2006.01) H01M 4/13(2010.01) H01M 4/525(2010.01) C01B 32/174(2017.01) (52) Cooperative Patent Classification (CPC): H01M 4/625; H01M 4/13; H01M 4/62; H01M 4/0404; H01M 2004/028; C01P 2006/12; C01P 2004/61; C01P 2006/19; C01P 2006/22; C01B 32/174; H01M 10/0525; Y02E 60/10 (86) International application number: PCT/EP2024/073716 (87) International publication number: WO 2025/045775 (06.03.2025 Gazette 2025/10)

(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: 30.08.2023 EP 23306431 (71) Applicant: Imertech 75015 Paris (FR)	(72) Inventors: FERRARESI, Giulio 7013 Domat/Ems (CH) RODLERT BACILIERI, Marlene 6932 Breganzona (CH) WANG, Xu Tokyo 1580097 (JP) RAUSCHER, Frank 6500 Bellinzona (DE) (74) Representative: Eder, Michael  df-mp Patentanwälte Rechtsanwälte PartG mbB Theatinerstraße 16 80333 München 80333 München (DE)