REINFORCED ELECTROLYTE MEMBRANE FOR FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL, AND POLYMER ELECTROLYTE FUEL CELL COMPRISING THE SAME

摘要

It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.