(19)

(11)

EP 4 817 107 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24824707.4 (22) Date of filing: 21.11.2024

(51) International Patent Classification (IPC):  H01M 8/04082(2016.01) H01M 8/0438(2016.01) H01M 8/04664(2016.01) H01M 8/0432(2016.01) H01M 8/04537(2016.01) (52) Cooperative Patent Classification (CPC): H01M 8/04201; H01M 8/0438; H01M 8/0432; H01M 8/04373; H01M 8/04425; H01M 8/04619; H01M 8/04664 (86) International application number: PCT/GB2024/052936 (87) International publication number: WO 2025/114693 (05.06.2025 Gazette 2025/23)

(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: 01.12.2023 GB 202318412 (71) Applicant: Hydrologiq Ltd York YO1 8SU (GB)	(72) Inventors: BATES, Aran Fife KY11 9YT (GB) CHENG, See Wah York (GB) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)