Separator, secondary battery, and electric device

CN119318067APending Publication Date: 2025-01-14CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202380045620.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-03-17
Publication Date
2025-01-14

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Abstract

The invention provides an isolating membrane, a secondary battery and an electric device, the isolating membrane comprises a first base membrane, a second base membrane and a bonding layer, the bonding layer is arranged between the first base membrane and the second base membrane, the melting point of the second base membrane is higher than that of the first base membrane, and the tortuosity of the first base membrane is larger than that of the second base membrane.
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