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EP 4 500 629 A1

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(43) Date of publication: 05.02.2025 Bulletin 2025/06 (21) Application number: 23715064.4 (22) Date of filing: 23.03.2023

(51) International Patent Classification (IPC):  H01M 50/204(2021.01) H01M 50/249(2021.01) H01M 50/269(2021.01) H01M 50/209(2021.01) H01M 50/291(2021.01) H01M 50/227(2021.01) (52) Cooperative Patent Classification (CPC): H01M 2220/20; H01M 50/204; H01M 50/209; H01M 50/249; H01M 50/291; H01M 50/293; H01M 50/269; H01M 10/613; H01M 10/647; H01M 10/625; H01M 10/6556; H01M 50/227; H01M 50/242; H01M 50/35; H01M 50/503; H01M 50/507; H01M 50/514 (86) International application number: PCT/EP2023/057423 (87) International publication number: WO 2023/180428 (28.09.2023 Gazette 2023/39)

(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: 24.03.2022 SE 2250367 (71) Applicant: Northvolt AB 112 47 Stockholm (SE)	(72) Inventors: GILHARRY, Rodyn 722 12 Västerås (SE) DOBI, Csaba 723 35 Västerås (SE) (74) Representative: Blidefalk, Jenny  Northvolt AB Alströmergatan 20 112 47 Stockholm 112 47 Stockholm (SE)