| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel electrode of a fuel battery cell such that the power generation cell's fuel electrode is never deteriorated in performance even in a situation where the fuel electrode side of the power generation cell is put in oxidation and reduction conditions several hundred times repeatedly. <P>SOLUTION: The fuel electrode of a fuel battery cell including a fuel electrode layer and an air electrode layer which are opposed to each other, and a solid electrolyte layer held between the fuel electrode layer and the air electrode layer comprises nickel. In the fuel electrode, the quantity of the nickel reaches a maximum at a point near a three-phase interface, decreases toward a surface of the fuel electrode layer, and gradually increases from a surface of the solid electrolyte layer to the point near the three-phase interface. A material that the fuel electrode layer contains in addition to nickel is at least one of yttrium stabilized zirconia (YSZ), samarium doped ceria (SDC), and gadolinium doped ceria (GDC). <P>COPYRIGHT: (C)2012,JPO&INPIT |
