NONAQUEOUS ELECTROLYTE SECONDARY BATTERY INSULATING POROUS LAYER
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United States of America Patent
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Oct 18, 2018
app pub date -
May 11, 2017
filing date -
May 11, 2017
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Abstract
A nonaqueous electrolyte secondary battery insulating porous layer having which is excellent in heat resistance and oxidation resistance in a battery is realized. A nonaqueous electrolyte secondary battery insulating porous layer includes aromatic polyester containing (A) a unit derived from aromatic hydroxycarboxylic acid, (B) a unit derived from aromatic dicarboxylic acid, (C) a unit derived from aromatic amine, selected from aromatic diamine and aromatic amine containing a hydroxyl group, and (D) a unit derived from aromatic diol, in respective predetermined ratios.
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