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(11)

EP 4 107 800 A1

(12)

(43) Date of publication: 28.12.2022 Bulletin 2022/52 (21) Application number: 21711137.6 (22) Date of filing: 18.02.2021

(51) International Patent Classification (IPC):  H01M 4/04(2006.01) H01M 4/583(2010.01) H01M 10/0525(2010.01) H01M 4/02(2006.01) H01M 4/38(2006.01) H01M 4/62(2006.01) H01M 50/105(2021.01) (52) Cooperative Patent Classification (CPC): H01M 10/0525; H01M 2004/027; H01M 4/0414; H01M 4/04; H01M 4/386; H01M 4/583; H01M 4/622; H01M 4/62; H01M 50/105; H01M 2220/20; Y02E 60/10; Y02P 70/50 (86) International application number: PCT/US2021/018495 (87) International publication number: WO 2021/168063 (26.08.2021 Gazette 2021/34)

(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: 19.02.2020 US 202062978475 P (71) Applicant: Livent USA Corp. Philadelphia, PA, 19103 (US)	(72) Inventors: YAKOVLEVA, Marina Gastonia, NC 28054 (US) FITCH, Kenneth, Brian Cherryville, NC 20821 (US) XIA, Jian Belmont, NC 28012 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)