| 摘要 |
PURPOSE:To unify current distribution and put a large battery into practical use by changing the porosity on the fuel-electrode inlet side of a battery to a small extent and that on the outlet side to a large extent. CONSTITUTION:It is made up with a solid electrolyte 1, an air electrode 1, a fuel electrode 3, a grooved separator 4, a collector 5, a fuel electrode inlet 7, a fuel electrode outlet 8 and a battery. In this case, the porosity of the battery 9 is changed continuously or discontinuously to a small extent on the fuel- electrode inlet 7 side and to a large extent on the fuel-electrode outlet 8 side. That results in uniform current distribution at each of positions from the inlet 7 to the outlet 8. Stress distribution is thus unified as well to put a large battery into practical use. |
