Separator, battery and electric device

WO2025112327A1PCT designated stage expired Publication Date: 2025-06-05CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information

Application Number
PCT/CN2024/093574
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-29
Filing Date
2024-05-16
Publication Date
2025-06-05

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Abstract

Disclosed in the present application are a separator, a battery and an electric device. The separator comprises a porous substrate and a coating arranged on at least one surface of the porous substrate, wherein the coating comprises a fiber material and a granular filler, the fiber material comprises a first fiber material and a second fiber material, the average length of the first fiber material is denoted as L1, the average length of the second fiber material is denoted as L2, L1 is greater than 800 nm, and L1 / L2 is greater than or equal to 2.4. The present application enables the battery to have a high reliability and good cycle performance.
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Citation Information

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