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EP 4 548 412 A1

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(43) Date of publication: 07.05.2025 Bulletin 2025/19 (21) Application number: 23736650.5 (22) Date of filing: 28.06.2023

(51) International Patent Classification (IPC):  H01M 4/38(2006.01) H01M 4/525(2010.01) H01M 4/62(2006.01) H01M 4/505(2010.01) H01M 4/587(2010.01) H01M 10/0525(2010.01) (52) Cooperative Patent Classification (CPC): H01M 4/622; H01M 4/386; H01M 4/587; H01M 10/0525; H01M 2004/027; H01M 4/133; H01M 4/134; H01M 4/483; H01M 2220/20; Y02E 60/10 (86) International application number: PCT/EP2023/067680 (87) International publication number: WO 2024/003155 (04.01.2024 Gazette 2024/01)

(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: 30.06.2022 SE 2250822 (71) Applicant: Northvolt AB 112 47 Stockholm (SE)	(72) Inventors: KORDE, Prasad Mangesh 723 37 Västerås (SE) DAYAMA, Parth Omprakash 722 27 Västerås (SE) (74) Representative: Engman, Eva Jessica  Northvolt AB Alströmergatan 20 112 47 Stockholm 112 47 Stockholm (SE)