| 摘要 |
A fuel cell system having a water recovering and circulating structure, includes an electric generator provided with a membrane electrode assembly including an anode electrode into which a hydrogen containing fuel is introduced, a cathode electrode into which an oxidant is introduced, and an electrolyte polymer membrane interposed between the anode and cathode electrodes. The cathode electrode includes: a first catalyst layer which is in contact with the electrolyte polymer membrane and in which a reduction reaction for the oxidant occurs; and a first gas diffusion layer to diffuse the oxidant on the first catalyst layer. At least a part of the first gas diffusion layer directly contacts the electrolyte polymer membrane. Thus, water produced by the chemical reaction in the cathode electrode is introduced into the anode electrode through the electrolyte polymer membrane, and water is effectively prevented from evaporating, thereby enhancing the water recovering efficiency and thus enhancing the power generation efficiency of the fuel cell system. |
