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(11)

EP 4 824 300 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24834810.4 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  C22B 1/00(2006.01) H01M 10/54(2006.01) H01M 4/583(2010.01) H01M 4/66(2006.01) C22B 7/00(2006.01) H01M 4/38(2006.01) H01M 4/62(2006.01) (52) Cooperative Patent Classification (CPC): H01M 10/54; C22B 1/005; C22B 7/005; H01M 4/139; Y02W 30/84 (86) International application number: PCT/GB2024/053112 (87) International publication number: WO 2025/125818 (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: 15.12.2023 GB 202319315 (71) Applicant: The University of Birmingham Birmingham, West Midlands B15 2TT (GB)

(72) Inventors: KISHORE, Brij Birmingham Edgbaston Birmingham West Midlands B15 2TT (GB) CHEN, Lin Birmingham Edgbaston Birmingham West Midlands B15 2TT (GB) SLATER, Peter Birmingham Edgbaston Birmingham West Midlands B15 2TT (GB) KENDRICK, Emma Birmingham Edgbaston Birmingham West Midlands B15 2TT (GB) LIU, Bowen Birmingham Edgbaston Birmingham West Midlands B15 2TT (GB) (74) Representative: Wilson Gunn  Centurion House 129 Deansgate Manchester M3 3WR Manchester M3 3WR (GB)