| 摘要 |
A polymer electrolyte composition characterized by comprising (1) a crosslinked polyether bipolymer which has a main chain comprising repeating units represented by the formula (i) and crosslinking units repeated by the formula (ii) and which has a weight-average molecular weight of 104 to 107, (2) an electrolytic liquid comprising an aprotic organic solvent, (3) an additive, as an optional ingredient, which comprises an ether compound having an ethylene oxide unit, and (4) an electrolyte salt compound comprising a lithium salt compound. The composition is excellent in liquid retention and ionic conductivity, is usable in a wide temperature range, and has excellent electrochemical properties. (i) (ii) [In the formula, R1 is an ethylenically unsaturated group having an ester bond.] |
