Patent ID: 6949317
Filing Date: 2005-09-27
Classification: H01G,H01M,Y02E

Abstract:
1. A polymer gel electrolyte comprising: an electrolyte solution containing a plasticizer with at least two carbonate structures on the molecule and an electrolyte salt, and a matrix polymer, wherein the matrix polymer is an unsaturated polyurethane compound prepared by reacting: (A) an unsaturated alcohol having at least one (meth)acryloyl group and a hydroxyl group on the molecule; and (B) a polyol compound of general formula (2) below wherein R Y is —COO—, —OCOO—, —NR the letters h, i and j are each independently 0 or an integer from 1 to 10, and the letter q is a number which is ≧1; (C) a polyisocyanate compound; and (D) an optional chain extender.