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EP 4 770 956 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24758524.3 (22) Date of filing: 23.08.2024

(51) International Patent Classification (IPC):  C01B 32/05(2017.01) H01M 10/0525(2010.01) C09C 1/56(2006.01) H01M 4/505(2010.01) H01M 4/62(2006.01) C09C 1/48(2006.01) H01M 4/525(2010.01) H01M 4/02(2006.01) (52) Cooperative Patent Classification (CPC): C01B 32/05; C01P 2006/12; C01P 2006/90; C01P 2006/19; H01M 4/625; H01M 10/0525; C01P 2006/16; C09C 1/48; C09C 1/56; H01M 4/505; H01M 4/525; H01M 2004/021; Y02E 60/10 (86) International application number: PCT/EP2024/073666 (87) International publication number: WO 2025/045757 (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 23306432 (71) Applicant: Imertech 75015 Paris (FR)	(72) Inventors: FERRARESI, Giulio 7013 Domat/Ems (CH) RODLERT BACILIERI, Marlene 6932 Breganzona (CH) ZUERCHER, Simone 6945 Origlio (CH) GULAS, Michal 6713 Malvaglia (CH) (74) Representative: Eder, Michael  df-mp Patentanwälte Rechtsanwälte PartG mbB Theatinerstraße 16 80333 München 80333 München (DE)