| abstract |
[PROBLEMS] To improve the oxidation resistance and electrical conductivity of a metal separator or cell plate, and to adjust a thermal expansion coefficient in a solid oxide fuel cell using a metal plate material for a cell plate as a separator or cell support substrate. Therefore, a solid oxide fuel cell unit capable of improving durability and output performance, and a fuel cell stack including such a battery unit are provided. An alloy material including an oxide, a nitride, a noble metal, and a noble metal in a fuel cell unit 1 including a metal cell plate 2 supporting a cell 2c and a metal separator plate 3 opposed to the cell plate 2. , Copper, or an alloy material containing chromium, or a coating made of a mixed material thereof is applied to at least a part of the surface of the separator plate 3. Moreover, the metal material which comprises the separator plate 3 and the cell plate 2 according to the function requested | required is made into a different kind of material, respectively. [Selection] Figure 1 |