| 摘要 |
PURPOSE:To provide a cell for a fuel cell having a support tube allowing a baking process at relatively low temperature and having high strength as well as high thermal and shock resistance by limiting the composition of each ceramic material so as to satisfy a characteristic required for the support tube. CONSTITUTION:Regarding the cell of a solid electrolytic fuel cell where a stack body with an air electrode 2 formed on one side of a solid electrolyte 3 and a fuel electrode 4 on the other side is stacked on a porous support tube 1, this tube 1 is formed out of a porous ceramic material of 20 to 45% porosity containing aluminum, silicon and magnesium respectively between 20 and 50wt.% by oxide conversion. Furthermore, the tube 1 is preferably formed out of a porous ceramic material of porosity between 20 and 40% formed out of 30 to 97wt.% of a composite oxide containing at least one of Ca, Ba, and Sr, and Ti, and 3 to 70wt.% of one oxide selected from a group of Al2O3, MgAl2O4 and SiO2. |
