| abstract |
PROBLEM TO BE SOLVED: To provide a proton conductive polymer electrolyte membrane capable of maintaining proton conductivity and suppressing methanol permeation as an electrolyte membrane for a fuel cell, particularly a direct methanol fuel cell, and a polymer electrolyte using the polymer electrolyte membrane To provide a membrane-electrode assembly, a production method thereof, and a fuel cell using the same. As a polymer electrolyte membrane for a fuel cell, a polymer electrolyte membrane comprising (A) a polymer having an acid generating group and (B) a compound having a hydroxyl group is used. Moreover, the polymer electrolyte membrane-electrode assembly for a fuel cell comprises two electrodes and the polymer electrolyte membrane according to any one of claims 1 to 3 disposed between the two electrodes. A polymer electrolyte membrane-electrode assembly is used. Furthermore, these polymer electrolyte membranes and polymer electrolyte membrane-electrode assemblies are used as fuel cells. [Selection figure] None |