| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent performance deterioration with time of air electrode materials of a solid oxide fuel cell. <P>SOLUTION: By making yttria stabilized zirconia as oxygen ion conductive materials, these oxygen ion conductive materials are divided into two groups, calcination-treatment is applied to one divided group which is made to be calcined materials 6, and the other non-calcined group is made to be non-calcined materials 7, and by making (La<SB>1-x</SB>Sr<SB>x</SB>)<SB>1-y</SB>MnO<SB>3</SB>(0≤x≤0.7, -0.05≤y≤0.1) as the base material 8, the calcined materials 6, the base material 8, and the non-calcined materials 7 are made to be powdered materials, particle diameters of the calcined materials 6 are made to be in the range of 1 μm to 20 μm, and the particle diameters of the non-calcined materials 7 and the base material 8 are made to be 1 μm or less, and on a condition that mass mixture ratio of the calcined materials 6, the base material 8, and the uncalcined materials 7 becomes 4:6:1, the calcined materials 6, the base material 8, and the uncalcined materials 7 are mixed, and are formed as a porous material 5 which has both the oxygen ion conductivity and the electric conductivity together. This porous mixted conductor 5 is made to be the air electrode of the solid oxide fuel cell. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
