| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interconnector not including an element deteriorating battery performance, and having a low reduction expansion rate. <P>SOLUTION: This interconnector 20 is disposed between cells so as to electrically connect a plurality of cells, in a solid oxide fuel cell 1 having the plurality of cells 10 each comprising an air electrode 14 that is a positive electrode, a fuel electrode 16 that is a negative electrode, and a solid oxide electrolyte (a solid electrolyte 12) disposed between both the electrodes. The interconnector 20 consists of a perovskite type oxide represented by a formula, Ln<SB>1-x</SB>Ae<SB>x</SB>Zr<SB>1-y</SB>Fe<SB>y</SB>O<SB>3-δ</SB>(wherein, Ln is at least one of element selected from lanthanoids; Ae is one or more kinds of elements selected from a group comprising Sr, Ba, and Ca; x is ≥0 and ≤1; y is ≥0.4 and <1; and δ is a value decided such that the value satisfies a charge neutral condition). <P>COPYRIGHT: (C)2010,JPO&INPIT |
