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EP 4 555 577 A1

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(43) Date of publication: 21.05.2025 Bulletin 2025/21 (21) Application number: 23742228.2 (22) Date of filing: 12.07.2023

(51) International Patent Classification (IPC):  H01M 50/342(2021.01) H01M 10/643(2014.01) H01M 50/209(2021.01) H01M 50/271(2021.01) H01M 50/367(2021.01) H01M 10/04(2006.01) H01M 10/613(2014.01) H01M 10/647(2014.01) H01M 50/213(2021.01) H01M 50/293(2021.01) H01M 50/375(2021.01) (52) Cooperative Patent Classification (CPC): H01M 10/0422; H01M 10/0431; H01M 10/613; H01M 10/643; H01M 10/647; H01M 50/209; H01M 50/213; H01M 50/271; H01M 50/293; H01M 50/3425; H01M 50/375; H01M 50/367; Y02E 60/10 (86) International application number: PCT/EP2023/069335 (87) International publication number: WO 2024/013238 (18.01.2024 Gazette 2024/03)

(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: 13.07.2022 SE 2250902 (71) Applicant: Northvolt AB 112 47 Stockholm (SE)	(72) Inventors: SWIERSTRA, Anneke 129 38 Hägersten (SE) VERHALLEN, Tomas 121 34 Stockholm (SE) ALMADA, Augustin 115 57 Stockholm (SE) DEBRUYNE, Anne-Sophie 112 18 Stockholm (SE) MENZL, Kilian 167 38 Bromma (SE) (74) Representative: Scania CV AB  Granparksvägen 10 151 87 Södertälje 151 87 Södertälje (SE)