| abstract |
A polymer electrolyte providing lithium secondarynbatteries in which growth of lithium dendrites is suppressednand batteries exhibiting excellent discharge characteristicsnin low to high temperature, comprising a polymer gel holdingna nonaqueous solvent containing an electrolyte, wherein thenpolymer gel comprises (I) a unit derived from at least one monomernhaving one copolymerizable vinyl group and (II) a unit derivednfrom at least one compound selected from the group consistingnof (II-a) a compound having two acryloyl groups and an(poly)oxyethylene group, (II-b) a compound having one acryloylngroup and a (poly)oxyethylene group, and (II-c) a glycidyl etherncompound, particularly the polymer gel comprises monomer (I),ncompound (II-a), and a copolymerizable plasticizing compound. |