| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material for an interconnector which is chemically stable in any atmosphere of an oxidation atmosphere and a reductive atmosphere, high in electron conductivity (conductivity), low in ion conductivity, and capable of lowering a calcination temperature by a composition not containing Cr. <P>SOLUTION: The material for the interconnector is arranged between a plurality of cells constituted of a fuel electrode layer 11, a solid electrolyte layer 12, and an air electrode layer 13 which are laminated in this order in a solid electrolyte fuel cell 1. The material of the interconnector 15 to electrically series-connect the plurality of cells alternately has a ceramic composition expressed by a composition formula as a main component: (La<SB>1-x</SB>Sr<SB>x</SB>)(Mn<SB>1-y</SB>Ti<SB>y</SB>)O<SB>3</SB>(wherein x and y express mol ratio, and 0≤z≤0.2 when z=(x-y)/(1-y), 2z+0.3<y<0.9 when 0≤z<0.05, 0.4<y<0.9 when 0.05≤z≤0.15, and 2z+0.1<y<0.9 when 0.15<z≤0.2 are satisfied). <P>COPYRIGHT: (C)2010,JPO&INPIT |
