| 摘要 |
PROBLEM TO BE SOLVED: To enhance the power generating characteristics of a fuel cell with solid electrolyte by paying attention to optimizing such factors of its fuel elec trode as particle size of crude material, film thickness, and layer constitution, and optimizing these factors. SOLUTION: A fuel electrode concerned includes a NiO/YSZ composite sintered film formed on a solid electrolyte film consisting of Y2 O3 -stabilized ZrO2 (YSZ), wherein an underlayer, mid-layer, and overlayer are formed in the sequence from the side near the solid electrolyte film. The Nip/YSZ ratio (% by wt.) of the underlayer, mid-layer, and overlayer should be 5-50/95-50, 50-80/50-20% and 80-95/20-5, respectively, and the thickness of the underlayer should be 4-12μm while the total thickness of the mid-layer and overlayer be 50-120μm. |
