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EP 3 769 358 A1

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(43) Date of publication: 27.01.2021 Bulletin 2021/04 (21) Application number: 19715683.9 (22) Date of filing: 21.03.2019

(51) International Patent Classification (IPC):  H01M 4/38(2006.01) H01M 4/62(2006.01) H01M 4/587(2010.01) H01M 4/04(2006.01) H01M 4/36(2006.01) (86) International application number: PCT/US2019/023376 (87) International publication number: WO 2019/183361 (26.09.2019 Gazette 2019/39)

(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: 22.03.2018 US 201862646521 P 29.06.2018 US 201862691819 P 20.03.2019 US 201916359733 20.03.2019 US 201916359707 20.03.2019 US 201916359725 (71) Applicant: FMC Lithium USA Corp. Philadelphia, Pennsylvania 19104 (US)

(72) Inventors: YAKOVLEVA, Marina Gastonia, North Carolina 28054 (US) FITCH, Kenneth Brian Cherryville, North Carolina 20821 (US) GREETER, JR., William Arthur Dallas, North Carolina 28034 (US) XIA, Jian Belmont, North Carolina 28012 (US) (74) Representative: Robin, Yann  Marks & Clerk LLP Aurora 120 Bothwell Street Glasgow G2 7JS Glasgow G2 7JS (GB)