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(11)

EP 4 824 302 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24829088.4 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  C22B 3/08(2006.01) C01G 51/10(2006.01) C01G 51/82(2025.01) C01G 53/11(2006.01) C22B 3/22(2006.01) C22B 7/00(2006.01) H01M 10/54(2006.01) H01M 10/0525(2010.01) B01D 9/00(2006.01) C01G 51/15(2025.01) C01G 53/10(2006.01) C01G 53/82(2025.01) C22B 3/44(2006.01) C22B 3/00(2006.01) H01M 4/525(2010.01) (52) Cooperative Patent Classification (CPC): C01G 53/11; C22B 3/08; C22B 3/22; C22B 3/44; C22B 7/007; C22B 23/043; C22B 23/0461; H01M 10/54; H01M 10/0525; H01M 4/525; C01G 51/15; B01D 11/0288; B01D 9/0054 (86) International application number: PCT/EP2024/086150 (87) International publication number: WO 2025/125538 (19.06.2025 Gazette 2025/25)

(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: 14.12.2023 EP 23216569 (71) Applicant: Umicore 1000 Brussels (BE)	(72) Inventors: GOMMERS, Koen 2250 Olen (BE) VERDICKT, Werner Olen (BE)