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EP 4 552 165 A1

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(43) Date of publication: 14.05.2025 Bulletin 2025/20 (21) Application number: 23739512.4 (22) Date of filing: 06.07.2023

(51) International Patent Classification (IPC):  H01M 4/04(2006.01) B05C 7/00(2006.01) B05C 5/02(2006.01) B05C 11/10(2006.01) (52) Cooperative Patent Classification (CPC): H01M 4/0404; H01M 4/0409; B05C 5/0258; B05C 11/1026 (86) International application number: PCT/EP2023/068688 (87) International publication number: WO 2024/008857 (11.01.2024 Gazette 2024/02)

(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: 06.07.2022 SE 2250853 (71) Applicant: Northvolt AB 112 47 Stockholm (SE)	(72) Inventors: NOMURA, Masahiro 722 09 Väterås (SE) ÖZER, Philip 722 12 Västerås (SE) BAHAR, Jack 724 81 Västerås (SE) QUINTERO, Jairo Eduardo Noriega 722 23 Västerås (SE) SON, Dongho 112 51 Stockholm (SE) (74) Representative: Engman, Eva Jessica  Northvolt AB Alströmergatan 20 112 47 Stockholm 112 47 Stockholm (SE)