ELECTRODE ASSEMBLY FOR SOLID POLYMER FUEL CELL

摘要

A membrane electrode assembly for a polymer electrolyte fuel cell has a laminate having a polymer electrolyte membrane with catalyst layers on both sides, gas diffusion layers that hold the polymer electrolyte membrane between the gas diffusion layers, and a first plastic film that covers a rim portion of the polymer electrolyte membrane, the catalyst layers and the gas diffusion layers, metal porous bodies disposed on both entire faces of the laminate, and a second plastic film that further covers a rim portion of the laminate and the metal porous bodies that are laminated together. Rim portions of the metal porous bodies are held between the first plastic film and the second plastic film.

主权项

1. A membrane electrode assembly for a polymer electrolyte fuel cell, comprising:
a laminate comprising a polymer electrolyte membrane with catalyst layers on both sides, gas diffusion layers that hold the polymer electrolyte membrane between the gas diffusion layers, and a first plastic film that covers a rim portion of the polymer electrolyte membrane, the catalyst layers and the gas diffusion layers; metal porous bodies disposed on both entire faces of the laminate; and a second plastic film that further covers a rim portion of the laminate and the metal porous bodies that are laminated together, wherein rim portions of the metal porous bodies are held between the first plastic film and the second plastic film.