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(11)

EP 4 437 166 A1

(12)

(43) Date of publication: 02.10.2024 Bulletin 2024/40 (21) Application number: 23701290.1 (22) Date of filing: 17.01.2023

(51) International Patent Classification (IPC):  C25B 11/052(2021.01) C25B 11/093(2021.01) C25C 1/10(2006.01) C25C 1/16(2006.01) C25C 7/02(2006.01) C25B 11/061(2021.01) C25C 1/08(2006.01) C25C 1/12(2006.01) C25C 1/20(2006.01) C25D 17/10(2006.01) (52) Cooperative Patent Classification (CPC): C25C 7/02; C25C 1/08; C25C 1/10; C25C 1/12; C25C 1/16; C25C 1/20; C25B 11/052; C25B 11/061; C25B 11/093; C25D 17/10 (86) International application number: PCT/EP2023/051035 (87) International publication number: WO 2023/143968 (03.08.2023 Gazette 2023/31)

(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: KH MA MD TN (30) Priority: 27.01.2022 CN 202210102406 (71) Applicant: Magneto Special Anodes B.V. 3125 BA Schiedam (NL)	(72) Inventors: JEREMIASSE, Adriaan 3069 RW Rotterdam (NL) LOVRAK, Matija 2542 EX Den Haag (NL) ZHAO, Qite Suzhou, Jiangsu (CN) (74) Representative: Murgitroyd & Company  165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)