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EP 4 393 020 A2

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(88) Date of publication A3: 06.04.2023 (43) Date of publication: 03.07.2024 Bulletin 2024/27 (21) Application number: 22818103.8 (22) Date of filing: 24.08.2022

(51) International Patent Classification (IPC):  H01M 4/24(2006.01) H01M 4/50(2010.01) H01M 4/66(2006.01) H01M 4/38(2006.01) H01M 4/62(2006.01) (52) Cooperative Patent Classification (CPC): H01M 4/24; H01M 4/244; H01M 4/38; H01M 4/50; H01M 4/62; H01M 4/661; Y02E 60/10 (86) International application number: PCT/HU2022/050063 (87) International publication number: WO 2023/026068 (02.03.2023 Gazette 2023/09)

(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 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: 24.08.2021 HU 2100302 15.11.2021 HU 2100391 (71) Applicant: Debreceni Egyetem 4032 Debrecen (HU)	(72) Inventors: ZSUGA, Miklós 4034 Debrecen (HU) NAGY, Tibor 4027 Debrecen (HU) NAGY, Lajos 4183 Kaba (HU) KÉKI, Sándor 4225 Debrecen (HU) ERDÉLYI, Zoltán 4225 Debrecen (HU) DEÁK, György 4031 Debrecen (HU) BARADÁCS, Eszter 4225 Debrecen (HU) (74) Representative: Danubia Patent & Law Office LLC  Bajcsy-Zsilinszky út 16 1051 Budapest 1051 Budapest (HU)