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EP 4 355 932 A1

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(43) Date of publication: 24.04.2024 Bulletin 2024/17 (21) Application number: 22735366.1 (22) Date of filing: 10.06.2022

(51) International Patent Classification (IPC):  C25B 3/03(2021.01) C25B 3/25(2021.01) C25B 9/19(2021.01) C25B 13/08(2006.01) C25B 3/07(2021.01) C25B 3/26(2021.01) C25B 13/02(2006.01) C25B 15/08(2006.01) (52) Cooperative Patent Classification (CPC): C25B 3/03; C25B 3/07; C25B 3/25; C25B 3/26; C25B 9/19; C25B 13/02; C25B 13/08; C25B 15/08 (86) International application number: PCT/EP2022/065823 (87) International publication number: WO 2022/263316 (22.12.2022 Gazette 2022/51)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 15.06.2021 US 202163210675 P (71) Applicants: TotalEnergies OneTech 92400 Courbevoie (FR) The Governing Council of The University of Toronto Toronto, ON M5G 1L7 (CA)

(72) Inventors: SINTON, David Toronto, ON M5G 1L7 (CA) SARGENT, Edward Toronto, ON M5G 1L7 (CA) XIE, Ke Toronto, ON M5G 1L7 (CA) MIAO, Rui Kai Toronto, ON M5G 1L7 (CA) (74) Representative: Mellet, Valérie Martine  Patent 42 5, rue Dicks 4081 Esch-sur-Alzette 4081 Esch-sur-Alzette (LU)