| 摘要 |
PURPOSE:To unify the temperature distribution of a fuel cell by providing a gas feed path at the center section of a flat solid electrolyte plate forming an electrode, providing a dispersing means of gas from the feed path to the electrode, and controlling the temperature of the fed gas. CONSTITUTION:An oxidizer gas feed pipe 7 and a fuel gas feed pipe 8 are provided at the center section of a solid electrolyte plate 1 made of a flat plate of partially stabilized zirconia added with yttrium oxide, a positive electrode 2 is formed except a seal section 9, and a negative electrode is formed on the back face. The pipes 7, 8 are formed at the center section of an inter- connector 31 made of nichrome and electrically connecting unit fuel cells like for the plate 1, and oxidizer gas and fuel gas are fed to the electrodes through grooves 32, 33 for gas dispersion. They are stacked in three layers and heat- treated, then it is held at 1000 deg.C, and oxygen is fed to the positive electrode side and hydrogen is fed to the negative electrode side for power generation. The temperature of the fed gas is adjusted, and the temperature distribution of the fuel cell can be unified. |
