GAS DIFFUSION ELECTRODE SUBSTRATE, GAS DIFFUSION ELECTRODE, MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL

摘要

Provided is a gas diffusion electrode, a membrane-electrode assembly, a solid polymer fuel cell, and a gas diffusion electrode substrate that will not damage a solid polymer film. This gas diffusion electrode substrate is provided with a nonwoven containing conductive fibers in which conductive particles are included at least in the interior of an organic resin. In this gas diffusion electrode, a catalyst is carried on the gas diffusion electrode substrate. The membrane-electrode assembly and the solid polymer fuel cell are provided with the gas diffusion electrode substrate.