| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell capable of obtaining high performance and high durability by preventing flooding phenomenon. <P>SOLUTION: This fuel cell is formed by laminating cells each of which comprises an ion conductive electrolyte, an anode and a cathode for holding the ion conductive electrolyte, an anode side conductive separator contacting with the anode, and a cathode side conductive separator contacting with the cathode. In the fuel cell, the anode side conductive separator has fuel gas flow passage grooves for supplying fuel gas to the anode on the portion facing the anode, and the cathode side conductive separator has oxidant gas flow passage grooves for supplying oxidant gas to the cathode on the portion facing the cathode. Wherein the equivalent diameter of each groove of at least either the fuel gas flow passage grooves or the oxidant gas flow passage grooves is made to be in the range of 0.79-1.3mm. <P>COPYRIGHT: (C)2004,JPO |
