A composite powder for a battery separator, a preparation method thereof, a battery separator, a battery, and an electrochemical device

CN119864597BActive Publication Date: 2026-10-27NANJING NORMAL UNIV TAIZHOU COLLEGE
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Patent Information

Application Number
CN202411950899.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-10-27
Estimated Expiration
2044-12-27

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Abstract

The application discloses a kind of composite powder for battery separator and its preparation method, battery separator, battery, electrochemical device, belong to battery material technical field, including inorganic powder and the polymer layer of coating inorganic powder particle surface, the inorganic powder is selected from one or more in alumina, boehmite, the polymer layer includes one or more in polymethyl methacrylate (PMMA), organic silicon polymer, polyphenyl ether (PPO), polyethylene naphthalate (PEN), the mass of polymer layer accounts for 1-10wt% of composite powder mass.The composite powder for ceramic coating of battery separator provided by the application has small ion elution amount, and the battery separator prepared therefrom has good wettability with electrolyte.
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Citation Information

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