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(11)

EP 4 824 306 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24829099.1 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  C22B 26/12(2006.01) C01B 32/215(2017.01) H01M 10/54(2006.01) B03D 1/02(2006.01) C01D 15/08(2006.01) (52) Cooperative Patent Classification (CPC): H01M 10/54; C22B 26/12; B03D 1/02; C01B 32/215; C01D 15/08; B03D 2201/06; Y02W 30/84 (86) International application number: PCT/EP2024/086277 (87) International publication number: WO 2025/125598 (19.06.2025 Gazette 2025/25)

(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: 13.12.2023 EP 23216219 (71) Applicant: tozero GmbH 80639 Munich (DE)	(72) Inventors: MILICEVIC NEUMANN, Ksenija 81737 München (DE) GAMARRA GARCIA, Jorge Daniel 75444 Uppsala (SE) (74) Representative: Eisenführ Speiser  Patentanwälte Rechtsanwälte PartGmbB Gollierstraße 4 80339 München 80339 München (DE)