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(11)

EP 4 771 697 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24772800.9 (22) Date of filing: 27.08.2024

(51) International Patent Classification (IPC):  H01M 10/0567(2010.01) H01M 4/1395(2010.01) H01M 4/62(2006.01) H01M 10/0568(2010.01) H01M 4/02(2006.01) H01M 4/134(2010.01) H01M 4/38(2006.01) H01M 10/0525(2010.01) H01M 10/0569(2010.01) (52) Cooperative Patent Classification (CPC): H01M 4/623; H01M 2004/027; H01M 10/0525; H01M 10/0567; H01M 10/0568; H01M 10/0569; Y02E 60/10; H01M 4/139; H01M 4/13 (86) International application number: PCT/US2024/043973 (87) International publication number: WO 2025/049433 (06.03.2025 Gazette 2025/10)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 28.08.2023 US 202363535005 P (71) Applicant: The Chemours Company FC, LLC Wilmington, Delaware 19801 (US)	(72) Inventors: KOURTAKIS, Kostantinos Media, Pennsylvania 19063 (US) XUN, Shidi Hockessin, Delaware 19707 (US) UPASANI, Tejas Wilmington, Delaware 19808 (US) GOULD, Benjamin Wilmington, Delaware 19808 (US) ARYAL, Shankar Middletown, DE 19709 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)