| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer electrolyte composition which enables formation of a protective film capable of making high ion conductivity at ordinary temperature compatible with cycle life characteristics of a battery on the surface of lithium metal.SOLUTION: A polymer electrolyte composition comprises (A) a cross-linked body of a polymer having a polyether chain (a1), (B) a linear polymer having a polyether chain (b1) and (C) a lithium salt. The number average molecular weight of (a1) is 100-5,000; the number average molecular weight of (b1) is 500-5,000; and the total content of the polyether chains in (A) and (B) is 40-99 wt.% with respect to the total weight of (A) and (B). |
