| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a well-drainable fuel cell and a fuel cell system with the fuel cells. <P>SOLUTION: The fuel cell comprises a membrane electrode assembly, two diffusion layers, an oxygen supply layer, a water absorption layer, and a collector. The fuel cell has an opening portion in at least part of the side face parallel to the proton conducting direction of an electrolytic membrane. The water absorption layer exists between the oxygen supply layer and the collector. The end of the water absorption layer exists on a plane including the opening portion or on the side of the fuel cell on the basis of the plane. When the fuel cell is cut at its surface including the water absorption layer and perpendicular to the plane, a length from one end to the other end of a portion of the cross section where the oxygen supply layer contacts water absorption layer is smaller than a length from one end to the other end of the water absorption layer including a portion of the cross section where the water absorbing layer contacts the oxygen supply layer. <P>COPYRIGHT: (C)2009,JPO&INPIT |
