COMPOSITE SEPARATOR AND PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY
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United States of America Patent
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Oct 6, 2017
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Apr 9, 2015
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Abstract
A composite separator is disclosed. The composite separator includes a base membrane, and a composite gel composited with the base membrane. The composite gel includes a gel polymer and a nano-barium sulfate dispersed in the gel polymer. A surface of the nano-barium sulfate is modified with lithium carboxylate group. A method for preparing the composite separator and a lithium-ion battery are also provided.
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