(19)

(11)

EP 4 771 694 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24776056.4 (22) Date of filing: 28.08.2024

(51) International Patent Classification (IPC):  H01M 10/0525(2010.01) H01M 10/0568(2010.01) H01M 10/0567(2010.01) H01M 10/0569(2010.01) (52) Cooperative Patent Classification (CPC): H01M 10/0525; H01M 10/0567; H01M 10/0568; H01M 10/0569; H01M 2300/0025; Y02E 60/10 (86) International application number: PCT/US2024/044188 (87) International publication number: WO 2025/049574 (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 202363534928 P 27.08.2024 US 202418817063 (71) Applicant: Eaglepicher Technologies, LLC Joplin, Missouri 64802 (US)	(72) Inventor: BARBARICH, Thomas James Joplin, Missouri 64802 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)