Patent ID: 7105254
Filing Date: 2006-09-12
Classification: C08F,C08G,C08L,H01M,Y02E

Abstract:
1. A polymer electrolyte comprising: a polymer gel holding a nonaqueous solvent containing an electrolyte, wherein said polymer gel comprises a polymer containing (I) monomeric units derived from at least one compound having one copolymerizable vinyl group and (II) monomeric units derived from a compound (II-a) represented by formula (2): wherein R represents an alkyl group having 1 to 4 carbon atoms; R wherein said monomeric units (I) are derived from at least one compound selected from the group consisting of (meth)acrylonitrile, an (α-alkyl) acrylic acid, an alkyl(α-alkyl)acrylate, a fluoroalkyl(α-alkyl)acrylate, a fluoroalkyl(α-fluoroalkyl)acrylate, a vinyl ester, a vinylalkyl ether, an allylalkyl ether, an allyl ester, vinyl alcohol, vinyl chloride, vinylidene chloride, and a cyclic olefin.