| abstract |
Provided is a solid polymer electrolyte composition comprising a solid polymer electrolyte excellent in ion conductivity and oxidation resistance and a polymer having ion conductivity. Formulas (I), (II), and (III) (II): a benzodiazole isomer of the formula (I), (III): a repeating unit represented by the formula (I) not containing a benzodiazole, and the above formulas (I), (II ) And (III) copolymer repeating molar ratio (III) / {(I) + (II)} is 0 <(III) / {(I) + (II)} ≦ 5 A solid polymer electrolyte consisting of 100 parts by weight of an aromatic polyimide, and 0.1 to 100 parts by weight of at least one acid selected from phosphoric acid, polyphosphoric acid, sulfuric acid, and methanesulfonic acid, and high ion conductivity A solid polymer electrolyte composition comprising molecules. [Selection figure] None |