Patent ID: 7915378
Filing Date: 2011-03-29
Classification: C08G,C08L,H01B,H01M,Y02E

Abstract:
1. A shaping material for solid polymer electrolyte, comprised of a polyether polymer having a moisture content in the range of 400 to 5,000 ppm by weight, wherein said polyether polymer comprises 70 to 99% by mole of units (A) derived from an ethylene oxide monomer (a) and 1 to 30% by mole of units (B) derived from another oxirane monomer (b) which is copolymerizable with the ethylene oxide monomer (a), wherein said other oxirane monomer (b) comprises wherein said polyether polymer has a weight average molecular weight (Mw) in the range of 100,000 to 1,500,000, and wherein said polyether polymer has a molecular weight distribution, as expressed by a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn), in the range of 1.5 to 13.