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EP 4 055 211 A1

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(43) Date of publication: 14.09.2022 Bulletin 2022/37 (21) Application number: 20800640.3 (22) Date of filing: 03.11.2020

(51) International Patent Classification (IPC):  C25B 13/08(2006.01) C08J 5/22(2006.01) H01M 8/1039(2016.01) C25B 13/04(2021.01) H01M 4/88(2006.01) H01M 8/1069(2016.01) (52) Cooperative Patent Classification (CPC): C25B 13/04; C25B 13/08; C25B 9/23 (86) International application number: PCT/EP2020/080754 (87) International publication number: WO 2021/089508 (14.05.2021 Gazette 2021/19)

(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: 04.11.2019 US 201962930229 P (71) Applicants: TotalEnergies OneTech 92400 Courbevoie (FR) The Governing Council of the University of Toronto Toronto, ON M5G 1L5 (CA)

(72) Inventors: GARCÍA DE ARQUER, Francisco, Pelayo Toronto, ON M5G 1L5 (CA) DINH, Cao-Thang Toronto, ON M5G 1L5 (CA) OZDEN, Adnan Toronto, ON M5G 1L5 (CA) WICKS, Joshua Toronto, ON M5G 1L5 (CA) SINTON, David Toronto, ON M5G 1L5 (CA) SARGENT, Edward Toronto, ON M5G 1L5 (CA) (74) Representative: Mellet, Valérie Martine  Patent 42 5, rue Dicks 4081 Esch-sur-Alzette 4081 Esch-sur-Alzette (LU)