GAS DIFFUSION LAYER AND COLLECTOR FOR POLYMER ELECTROLYTE FUEL CELL, AND POLYMER ELECTROLYTE FUEL CELL USING GAS DIFFUSION LAYER

摘要

PROBLEM TO BE SOLVED: To provide a gas diffusion layer for a polymer electrolyte fuel cell, capable of favorably removing droplets formed at an oxygen electrode during operation, while capable of suppressing the drying of a membrane electrode assembly during suspended operation.SOLUTION: A gas diffusion layer for a polymer electrolyte fuel cell includes a metal porous body base material having a three-dimensional network structure, and a resin layer. The metal porous body base material is made of nickel or a nickel alloy, the resin layer is formed of a resin that is hydrophilic and water-insoluble, and the surface of a skeleton of the metal porous body base material is covered with the resin layer.SELECTED DRAWING: None