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EP 4 740 256 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24743032.5 (22) Date of filing: 27.06.2024

(51) International Patent Classification (IPC):  H01M 8/18(2006.01) C01G 37/04(2006.01) C01G 49/10(2006.01) C22B 61/00(2006.01) C22B 3/10(2006.01) C01G 49/00(2006.01) C22B 3/42(2006.01) (52) Cooperative Patent Classification (CPC): H01M 8/188; C22B 3/42; C01G 49/0009; C22B 3/10; C22B 61/00; C01G 23/0536 (86) International application number: PCT/IB2024/056255 (87) International publication number: WO 2025/008718 (09.01.2025 Gazette 2025/02)

(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: 03.07.2023 ZA 202306769 (71) Applicant: Redox One Limited 8011, Paphos (CY)	(72) Inventors: CHENNELLS, Peter, Maurice 2191 Sandton (ZA) ROOPA, Shriya 2191 Sandton (ZA) BIJZET, Johannes, Ferdinand 2191 Sandton (ZA) BRUINSMA, Odolphus, Simon, Leo 2531 Potchefstroom (ZA) (74) Representative: Regimbeau  20, rue de Chazelles 75847 Paris Cedex 17 75847 Paris Cedex 17 (FR)