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EP 4 739 627 A2

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(88) Date of publication A3: 13.02.2025 (43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24746139.5 (22) Date of filing: 03.07.2024

(51) International Patent Classification (IPC):  C01B 32/205(2017.01) C01B 32/215(2017.01) C10B 55/00(2006.01) C10G 1/00(2006.01) C01B 32/21(2017.01) C10B 53/04(2006.01) C10B 57/04(2006.01) H01M 10/0525(2010.01) (52) Cooperative Patent Classification (CPC): C01B 32/205; C01B 32/21; C01B 32/215; C10B 53/04; C01P 2006/80; H01M 10/0525; H01M 4/587 (86) International application number: PCT/US2024/036766 (87) International publication number: WO 2025/010353 (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: 06.07.2023 US 202363512097 P (71) Applicant: ARQ IP LIMITED London W1W 6XH (GB)	(72) Inventors: UNSWORTH, John Francis London W1W 6XH (GB) PATTABHIRAMAN, Pranetr London W1W 6XH (GB) AYERS, Clayton London W1W 6XH (GB) BRITNELL, Liam London W1W 6XH (GB) KEVERNE, Benjamin London W1W 6XH (GB) BLACKBURN, Timothy London W1W 6XH (GB) (74) Representative: Keltie LLP  No. 1 London Bridge London SE1 9BA London SE1 9BA (GB)