| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cell stack of a fuel cell increasing the joining force between a current collector and a cell of the fuel cell and the strength of a surface layer and suppressing decrease in output voltage of the cell; and to provide a fuel cell module using the same. <P>SOLUTION: A plurality of cells 1 and a plurality of current collectors 3 are alternately joined through an conductive adhesive 5, the current collector 3 includes a surface layer 35 containing zinc oxide as the main component in at least a portion coming in contact with the conducive adhesive 5, the zinc oxide is composed of the zinc oxide of globular crystal 35S and zinc oxide of columnar crystal 35P, and thereby, even when cracks are generated on the inside of the surface layer 35, since the columnar crystal zinc oxide is present in the surface layer 35, progress of cracks is suppressed, conductivity between the current collector 3 and the conductive adhesive 5 is increased, and as a result, the output voltage of the cell stack is heightened. <P>COPYRIGHT: (C)2010,JPO&INPIT |
