| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid high molecular fuel cell and its manufacturing method, capable of preventing excess or insufficient water content in the catalyst, and the gas diffusion inhibition, with respect to the fuel cell using a catalyst layer containing an ion exchange resin. SOLUTION: In this solid high molecular fuel cell comprising the catalyst layers 11 formed on both main faces through a solid high molecular catalyst film, a gas diffusion layer 3 and a separator having a reaction gas channel, the catalyst layers include the catalyst powder and the ion exchange resin, and EW of the ion exchange resin in the catalyst layers is changed along the thickness direction and the face direction of the catalyst layers. Most preferably, EW in the thickness direction of the catalyst layers 11 is large at the gas diffusion layer 3 side and small at the solid high molecular electrolytic film side, and EW in the face direction is large at an outlet side of the reaction gas, and small at its inlet side. |
