(19)

(11)

EP 4 315 455 A1

(12)

(43) Date of publication: 07.02.2024 Bulletin 2024/06 (21) Application number: 22715477.0 (22) Date of filing: 21.03.2022

(51) International Patent Classification (IPC):  H01M 4/62(2006.01) C01B 39/02(2006.01) H01M 10/0525(2010.01) (52) Cooperative Patent Classification (CPC): H01M 4/628; H01M 4/622; H01M 2004/027; H01M 10/0525; C01B 39/026; Y02E 60/10 (86) International application number: PCT/US2022/021072 (87) International publication number: WO 2022/203979 (29.09.2022 Gazette 2022/39)

(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: 24.03.2021 US 202117210598 (71) Applicant: Pacific Industrial Development Corporation Ann Arbor, MI 48108 (US)	(72) Inventors: GAO, Shuang Ann Arbor, MI 48108 (US) SHEPARD, David Canton, MI 48188 (US) LI, Yunkui Ann Arbor, MI 48108 (US) BORTUN, Anatoly Ypsilanti, MI 48197 (US) (74) Representative: Staeger & Sperling Partnerschaftsgesellschaft mbB  Sonnenstraße 19 80331 München 80331 München (DE)