Patent ID: 7858668
Filing Date: 2010-12-28
Classification: C08J,H01M,Y02E,Y02P

Abstract:
1. A method of manufacturing an electrolyte membrane formed of a cross-linked reaction product of a benzoxazine monomer with cross-linkable compound, the method comprising: dissolving the cross-linkable compound in a solvent to obtain a 10 to 20% by weight cross-linkable compound solution; mixing the cross-linkable compound solution and the benzoxazine monomer to obtain a mixture of the benzoxazine monomer and the cross-linkable compound; forming a membrane using the mixture; heating the membrane to perform thermal curing to a temperature of 80 to 250° C.; and impregnating the resultant obtained through the thermal curing with an acid to form an electrolyte membrane, wherein the cross-linkable compound comprises at least one compound selected from the group consisting of polybenzimidazole, polybenzthiazole and polybenzoxazole.