POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELL AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A manufacturing method of a polymer electrolyte is provided to use a relatively small amount of organic solvent, to improve defects of a support due to evaporation of solvent, and to improve impregnation of an ion conductor to the support and facility of process. CONSTITUTION: A manufacturing method of a polymer electrolyte comprises: a step(S3) of filling a crosslinkable ion conductor into pores of a porous nanoweb support; a step(S4) of crosslinking the ion conductor. The crosslinking of the ion conductor is conducted by heating at 150-200 °C. The crosslinkable ion conductor is a low-molecular-weight ion conductor of which weight average molecular weight is 1000-50000 g/mol. [Reference numerals] (AA) Polymer electrolyte; (S1) Step of manufacturing a porous nanoweb support; (S2) Step of manufacturing an ion conductive solution; (S3) Step of filling a crosslinkable ion conductor into pores of a porous nanoweb support; (S4) Step of crosslinking the ion conductor