GAS DIFFUSION POROUS LAYER, GAS DIFFUSION LAYER CONTAINING THE SAME, METHOD FOR PRODUCING THE GAS DIFFUSION POROUS LAYER, AND MEMBRANE / ELECTRODE ASSEMBL

摘要

Provided is a gas diffusion porous layer having high production efficiency, low cost, low resistance in the film thickness direction, and high gas diffusion ability. A gas diffusion porous layer having carbon particles and a hydrophilic polymer having a surface contact angle of 90 ° or less and having a surface contact angle of 90 ° or less.