Membrane electrode assembly, method for manufacturing the same, and polymer electrolyte fuel cell

摘要

A membrane electrode assembly composed of a polymer electrolyte membrane and diffusion layers bonded to both surfaces of the polymer electrolyte membrane, as well as a polymer electrolyte fuel cell including the membrane electrode assembly, are provided. The polymer electrolyte membrane includes a porous polymer membrane, proton conductive groups disposed in pores of the porous polymer membrane, and a catalyst-supporting conductive material embedded in the pores at least in the neighborhood of at least one surface of the porous polymer membrane. A method for forming the assembly and a polymer electrolyte fuel cell including the assembly are also provided.