Performance of a solid oxide fuel cell fabricated by co-firing

被引:33
作者
Ohrui, H [1 ]
Matsushima, T [1 ]
Hirai, T [1 ]
机构
[1] NTT Corp, Integrated Informat & Energy Syst Labs, Musashino, Tokyo 180, Japan
关键词
solid oxide fuel cell; co-firing; shrinkage; sintering characteristics; cell performance;
D O I
10.1016/S0378-7753(97)02758-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A solid oxide fuel cell (SOFC) was fabricated by co-firing laminated sheets of air-electrode, electrolyte, and fuel-electrode and the influence of the physical characteristics of the air-electrode on the cell performance was studied. Tailoring the sintering shrinkage of green sheets to one another was found to be an important factor in fabricating a flat and fracture-free three-layer cell. Controlling the binder content in the fuel-electrode green sheet and calcination of La0.7Sr0.3MnO3 (LSM) powder were effective for tailoring the sintering shrinkage of green sheets. The performance of the co-fired three-layer cell was greatly influenced by the porosity of the air-electrode, and the maximum power density was attained at 70% of relative density, which is determined by the gas permeability and conductivity of air-electrode. (C) 1998 Elsevier Science S.A.
引用
收藏
页码:185 / 189
页数:5
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