| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid electrolyte type fuel cell capable of suppressing generations of cracks in a connection region between a support substrate and a stainless steel. <P>SOLUTION: A solid oxide type fuel cell comprises: a support substrate having a fuel gas passage therein and containing main composition containing at least of MgO and Y<SB POS="POST">2</SB>O<SB POS="POST">3</SB>; and a power generation part formed on the support substrate and having a fuel electrode, an air electrode and a solid electrolyte layer arranged between the fuel electrode and the air electrode. The main composition consists of 64.56 mol% or more to 97.70 mol% or less of MgO, 2.30 mol% or more to 4.50 mol% or less of Y<SB POS="POST">2</SB>O<SB POS="POST">3</SB>and 0.00 mol% or more to 30.94 mol% or less of NiO. A volume ratio of Ni to a total volume of a solid phase of the main composition is equal to or less than 18.0 vol% when the support substrate is reduced. <P>COPYRIGHT: (C)2013,JPO&INPIT |
