| 摘要 |
PURPOSE:To have the electrolyte long term preservative property, and to secure a reaction gas flow passage by forming a side of a fuel electrode, which contacts with the electrolyte layer, of the mixture of nickel power, in which oxide fine grains are dispersed for reinforcement, and the oxide powder, and by forming the other side of the fuel electrode, which contacts with the reaction gas, of the plural layers structure of porous sintered material made of the similar nickel powder. CONSTITUTION:A fuel electrode 10 is formed of two layers of a porous sintered material 11 made of the mixture of the nickel power, in which oxide grains are dispersed for reinforcement, with the oxide power and a porous sintered material layer 12 made of only the nickel power, in which oxide grains are dispersed for reinforcement. The layer 11 contacts with an electrolyte sheet 13 of a fuel battery, and the layer 12 contacts with the reaction gas. A fuel electrode 14, the sheet 13 and an oxidant electrode 14 are fastened from both sides by a pair of battery housings 16, which are provided with reaction gas supplying channels 15a, 15b, to form a unit cell 17. The electrolyte preservative property is thereby improved to stabilize the battery characteristic for a long time. |
