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EP 4 388 599 A1

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(43) Date of publication: 26.06.2024 Bulletin 2024/26 (21) Application number: 22768652.4 (22) Date of filing: 19.08.2022

(51) International Patent Classification (IPC):  H01M 4/70(2006.01) H01M 50/107(2021.01) H01M 50/531(2021.01) H01M 10/0587(2010.01) H01M 10/04(2006.01) H01M 50/528(2021.01) H01M 50/533(2021.01) (52) Cooperative Patent Classification (CPC): H01M 4/70; H01M 50/533; H01M 50/528; H01M 50/531; H01M 10/0431; H01M 50/107; H01M 10/0587; Y02E 60/10; Y02P 70/50 (86) International application number: PCT/EP2022/073177 (87) International publication number: WO 2023/021183 (23.02.2023 Gazette 2023/08)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 19.08.2021 SE 2151007 (71) Applicant: Northvolt AB 112 47 Stockholm (SE)	(72) Inventors: LIGEOIS, Dominique 723 58 Västerås (SE) KWON, Jeong Keun 722 19 Västerås (SE) O´REGAN, Michael 116 46 Stockholm (SE) MAKINO, Tetsuya 169 73 Solna (SE) SEXTON, Brendan 722 14 Västerås (SE) SHATANI, Kenya 118 49 Stockholm (SE) (74) Representative: Engman, Eva Jessica  Northvolt AB Alströmergatan 20 112 47 Stockholm 112 47 Stockholm (SE)