Patent ID: 7045241
Filing Date: 2006-05-16
Classification: C08G,C08J,H01B,H01M,Y02E,Y02P

Abstract:
1. A method for producing a proton conductive solid polymer electrolyte comprising an acidic group-possessing polymer which has an acidic group and a basic polymer which is basic, said method comprising: dissolving, in a solvent, said acidic group-possessing polymer and a monomer which produces polybenzimidazole by means of polymerization, polymerizing said monomer to produce said polybenzimidazole, compatibilizing said polybenzimidazole and said acidic group-possessing polymer with each other to produce a compatibilized polymer; and separating said compatibilized polymer from said solvent wherein polyphosphoric acid is used as said solvent.