Patent ID: 6162563
Filing Date: 2000-12-19
Classification: C08G,H01B,H01G,H01M,Y02E

Abstract:
A polymer solid electrolyte comprising:(1) an optionally crosslinked polyether copolymer having a number-average molecular weight of 10,000 to 2,000,000 and comprising:(A) 1 to 99% by mol of a repeating unit derived from a monomer represented by the formula (I): ##STR26## wherein R.sup.1 is a group selected from an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, an aryl group having 6 to 14 carbon atoms, an aralkyl group having 7 to 12 carbon atoms and a tetrahydropyranyl group; and n is a numeral of 1 to 12;(B) 99 to 1% by mol of a repeating unit, other than the repeating unit (A), derived from a monomer represented by the formula (II): ##STR27## (C) greater than 0 and up to 15 by mol of a repeating unit, other than the repeating unit (A), derived from a monomer having one epoxy group and at least one reactive functional group, said reactive functional group being (a) a reactive silicon group, (b) an epoxy group, (c) an ethylenically unsaturated group or (d) a halogen atom; the polyether copolymer being a random copolymer; (2) an electrolyte salt compound; and (3) a plasticizer selected from the group consisting of an aprotic organic solvent, and a derivative or metal salt of a straight-chain or branched polyalkylene glycol having a number-average molecular weight of 200 to 5,000 or a metal salt of the derivative.