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(11)

EP 4 449 547 A1

(12)

(43) Date of publication: 23.10.2024 Bulletin 2024/43 (21) Application number: 21967438.9 (22) Date of filing: 13.12.2021

(51) International Patent Classification (IPC):  H01M 50/552(2021.01) H01M 10/658(2014.01) H01M 50/566(2021.01) H01M 50/284(2021.01) (52) Cooperative Patent Classification (CPC): Y02E 60/10; H01M 50/284; H01M 50/244; H01M 10/486 (86) International application number: PCT/CN2021/137397 (87) International publication number: WO 2023/108329 (22.06.2023 Gazette 2023/25)

(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 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 (71) Applicant: Inventus Power, Inc. Woodridge, Illinois 60517 (US)	(72) Inventors: LIU, Jianfei Shenzhen, Guangdong 518110 (CN) DONG, Qicai Guangzhou, Guangdong 511400 (CN) CHEN, Shengya Loudi, Hunan 417000 (CN) FAN, QiLiang Shenzhen, Guangdong 518001 (CN) TENORIO, William Glenview, Illinois (US) (74) Representative: Haseltine Lake Kempner LLP  One Portwall Square Portwall Lane Bristol BS1 6BH Bristol BS1 6BH (GB)