| 摘要 |
PURPOSE:To obtain an electrolyte supporter having strong mechanical and thermal shock resistance and a good contact property with an electrode by coating the surface of an oxide porous body with a metal in a porous state. CONSTITUTION:The surface of an oxide porous body 10 is coated with a metal 9 in a porous state. For example, nickel 9 is vacuum-deposited at a thickness of 0.2mum-0.8mum to one surface of a lithium aluminate porous body 10 obtained by molding lithium aluminate powder with an average grain size of 0.15-0.5mum at a thickness of 0.5mm. then sintering it in the air for 5-6hr at a temperature of 1,000 deg.C-1,100 deg.C. An electrolyte supporter thus constituted is provided with a lithium aluminate layer coated with nickel on the fuel cell side and has good contact with a fuel electrode during the cell operation, and this layer acts as a metal reinforcing material againt thermal and mechanical shocks, thus a stronger electrolyte supporter can be formed. |
