Solid polymer type methods membrane electrode assembly and its manufacturing fuel cells and polymer electrolyte fuel cells

Object to provide a frame assembly - suppressing power generation property deterioration due to cross leakage of a polymer electrolyte fuel cell of the gas, to improve the durability of the polymer electrolyte membrane, and productivity superior membrane - electrode to. Membrane - electrode - frame assembly is arranged nonwoven fabric having two different regions on the polymer electrolyte membrane of a pore size which is composed of fibers of PVDF polymer electrolyte fuel cell as a reinforcing layer, a polymer electrolyte membrane the small overhanging pore size region and integral with the frame member by welding, to improve the gas sealing property.