POLYMER ELECTROLYTE COMPOSITION AND ITS APPLICATION

摘要

PROBLEM TO BE SOLVED: To provide a polymer electrolyte composition having improved radical resistance. SOLUTION: [1] The polymer electrolyte composition contains a trivalent phosphoric antioxidant. [2] The composition described in [1] comprises the trivalent phosphoric antioxidant being at least one type of phosphoric compound selected from the following general formulae (I)-(VI).