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EP 4 577 499 A1

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(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23757941.2 (22) Date of filing: 22.08.2023

(51) International Patent Classification (IPC):  C01G 53/00(2025.01) (52) Cooperative Patent Classification (CPC): C01G 53/50; C01P 2002/72; C01P 2006/40; C01P 2002/52; C01P 2002/22; Y02E 60/10 (86) International application number: PCT/EP2023/072999 (87) International publication number: WO 2024/042060 (29.02.2024 Gazette 2024/09)

(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: 23.08.2022 EP 22306245 (71) Applicants: Centre National de la Recherche Scientifique 75016 Paris (FR) College de France 75005 Paris (FR) Sorbonne Université 75006 Paris (FR)

(72) Inventors: MARIYAPPAN, Sathiya 75013 Paris (FR) GREPIN, Elisa 92340 BOURG LA REINE (FR) TARASCON, Jean-Marie 75014 Paris (FR) (74) Representative: Brevalex  Tour Trinity 1 B Place de la Défense 92400 Courbevoie 92400 Courbevoie (FR)