| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance power generation efficiency by uniforming temperature difference in the stacking direction of a fuel cell stack. <P>SOLUTION: The fuel cell stack 1 is formed by alternately stacking a power generation cell 5 and a separator 8, emissivity of the side surface of the separator 8 positioned in the middle step part (M) of the fuel cell stack 1 is made larger than emissivity on the side surface of the separator 8 in upper and lower step parts (U), (D). The side surfaces of the separator 8 in the upper and lower step parts are covered with an Ag-plated treating membrane, the side surface of the separator 8 in the middle step part is covered with a base material oxide membrane, a Ni-plated membrane, or an Al diffusion film. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
