| 摘要 |
PROBLEM TO BE SOLVED: To prevent separation of electrically conductive bonding agent due to mismatching of thermal expansion by specifying compound component of nickel oxide, iron oxide and titanium oxide and yttria stabilized zirconia of rough particles included in a conductive bonding agent. SOLUTION: An electric generator film 11 is composed of, a fuel side electrode 13a and oxygen side electrode 13b, a mixture of nickel oxide and YSZ formed on the both surface of yttria stabilized zirconia 12. On this generator film 11, an electrode connecting corrugated board 15 is formed via a conductive bonding agent 14. The bonding agent 14 is produced in such a way that with a basic composition consisting of nickel oxide, iron oxide, and titanium oxide included by 70 to 92%, 3 to 10% and 5 to 20% respectively, yttria stabilized zirconia of rough particles of diameter 3 to 20μm is mixed, an organic solvent is added therein to produce paste. Thus, by mixing nickel oxide with respective components that are materials with same quality as each other, bonding strength can be improved and simultaneously separation caused by mismatching of heat expansion due drop of heat can be prevented. |
