| abstract |
Disclosed is a polymer electrolyte containing 1-30% by weight of a structural unit represented by the following general formula (1). (1) (In the formula, ring A and ring B independently represent an optionally substituted aromatic hydrocarbon ring or an optionally substituted heterocyclic ring; X1 and X2 independently represent -CO-, -SO- or -SO2-; n and m independently represent 0, 1 or 2 with n + m being not less than 1, when n is 2, two X1's may be the same as or different from each other, and when m is 2, two X2's maybe the same as or different from each other; and X represents a direct bond or a divalent group.) This polymer electrolyte is excellent in water resistence, while having high ion conductivity. |