Patent ID: 8986903
Filing Date: 2015-03-24
Classification: C08G,C08J,H01B,H01M,Y02E,Y02P

Abstract:
1. A method for producing a polymer electrolyte article comprising a crystalline polymer, the method comprising forming a precursor of the polymer electrolyte article, wherein forming the precursor comprises introducing one or more protective groups in a main chain of the precursor and forming a membrane-shaped precursor, wherein the introducing the one or more protective groups in the main chain of the precursor lowers a degree of crystallinity of the crystalline polymer and the membrane-shaped precursor contains the one or more protective groups and an ionic group, and deprotecting at least a portion of the protective groups from the membrane-shaped precursor to form the polymer electrolyte article, wherein the ionic group is selected from a group consisting of sulfonic acid group, a sulfoneimide group, a sulfuric acid group, a phosphonic acid group, a phosphoric acid group and a carboxylic acid group.