| 摘要 |
<p>Because of its inability to uniformly control water content over the entire surface of a membrane electrode joining element, a polyelectrolyte fuel cell is difficult to keep a constant voltage over an extended time. A conductive polymer layer consisting of conductive particles and a polymer material is formed on the top of a porous material of carbon fibers, and a catalyst layer consisting of platinum-carrying carbon particles is disposed on the conductive polymer layer to form a gas diffusion electrode. The conductive polymer layer has conductive particles different in particle size mixed therein, with the mixed amount of conductive particles small in particle size decreasing from one end toward the other end of the gas diffusion electrode.</p> |
