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EP 4 552 171 A1

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(43) Date of publication: 14.05.2025 Bulletin 2025/20 (21) Application number: 23739231.1 (22) Date of filing: 05.07.2023

(51) International Patent Classification (IPC):  H01M 6/52(2006.01) H01M 50/244(2021.01) H01M 50/269(2021.01) H01M 10/54(2006.01) H01M 50/267(2021.01) (52) Cooperative Patent Classification (CPC): H01M 50/244; H01M 50/267; H01M 50/269; H01M 50/207; H01M 50/209; H01M 50/289; H01M 50/291; H01M 6/52; H01M 10/54; H01M 50/262 (86) International application number: PCT/EP2023/068549 (87) International publication number: WO 2024/008797 (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: 08.07.2022 SE 2250882 (71) Applicant: Northvolt Revolt AB 112 47 Stockholm (SE)	(72) Inventors: BIGORRA, Eduard Marti 172 66 Sundbyberg (SE) ROHAN, Choudhury Dipesh 723 58 Västerås (SE) (74) Representative: Engman, Eva Jessica  Northvolt AB Alströmergatan 20 112 47 Stockholm 112 47 Stockholm (SE)