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(11)

EP 4 580 989 A1

(12)

(43) Date of publication: 09.07.2025 Bulletin 2025/28 (21) Application number: 24791471.6 (22) Date of filing: 10.10.2024

(51) International Patent Classification (IPC):  C01B 33/02(2006.01) H01M 4/38(2006.01) (52) Cooperative Patent Classification (CPC): H01M 4/386; C01B 33/02; C01P 2006/12; H01M 4/134; H01M 10/0525; H01M 2004/021; H01M 2004/027; Y02E 60/10 (86) International application number: PCT/GB2024/052606 (87) International publication number: WO 2025/078826 (17.04.2025 Gazette 2025/16)

(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: 10.10.2023 GB 202315535 11.10.2023 GB 202315578 (71) Applicant: Nexeon Limited Abingdon, Oxfordshire OX14 4SB (GB)	(72) Inventor: The designation of the inventor has not yet been filed  () (74) Representative: Gill Jennings & Every LLP  The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)