| 摘要 |
PROBLEM TO BE SOLVED: To maintain airtightness by suppressing the development of thermal stress at the sealing portion of a battery cell and a separator, and enchanting the chemical stability of the sealing portion in a flat type solid electrolyte fuel cell. SOLUTION: A process forming a sealing portion sealing the boundary face end portion of a battery cell 20 and a separator 15 comprises a process in which aluminum metal powder and oxide ultra fine powder having a higher melting point that the operation temperature of a solid electrolyte fuel cell are mixed, and an additional auxiliary agent and a binder are added so as to manufacture sealing material raw material. The same comprises further a process sandwiching the sealing material raw material into the sealing portion between the battery cell 20 and the separator 15, a process heating the sealing portion up to temperatures from 350 deg.C to 550 deg.C, a process oxidizing the aluminum metal power in the same temperature range and a process burning the sealing portion in temperatures from 1,000 deg.C to 2,000 deg.C. |
