(19)

(11)

EP 4 264 712 A1

(12)

(43) Date of publication: 25.10.2023 Bulletin 2023/43 (21) Application number: 21836565.8 (22) Date of filing: 16.12.2021

(51) International Patent Classification (IPC):  H01M 4/86(2006.01) H01M 4/90(2006.01) H01M 8/1004(2016.01) H01M 4/88(2006.01) H01M 4/92(2006.01) (52) Cooperative Patent Classification (CPC): H01M 8/1004; H01M 4/8663; H01M 4/8828; H01M 4/9016; H01M 4/923; Y02E 60/50; Y02P 70/50 (86) International application number: PCT/EP2021/086252 (87) International publication number: WO 2022/129367 (23.06.2022 Gazette 2022/25)

(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: 18.12.2020 SE 2051488 (71) Applicant: Dürr Robin Nils 752 37 Uppsala (SE)	(72) Inventor: Dürr Robin Nils 752 37 Uppsala (SE) (74) Representative: Brann AB  P.O. Box 3690 Sveavägen 63 103 59 Stockholm 103 59 Stockholm (SE)