| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase an absorbing volume of displacement along a lamination direction of a fuel cell stack due to thermal expansion or the like. <P>SOLUTION: The fuel cell stack 10 is structured by laminating a plurality of unit cells 1 containing an electrolyte membrane 11a, electrodes 11b, 11c fitted on either side of the electrolyte membrane 11a, and separators 12 fitted on surfaces of the electrodes 11b, 11c, respectively. The separator 12 is provided with a first plate 30 having a groove-like first reaction gas flow channel 33, and a second plate 20 of which a bottom surface part 23a inclines toward a center part of the first reaction gas flow channel 33 with a constant angle, and having a second reaction gas flow channel 23 in linear contact with a back face of the first reaction gas flow channel 33. <P>COPYRIGHT: (C)2010,JPO&INPIT |
