Electrode Performance Test on Single Ceramic Fuel Cells Using as Electrolyte Sr‐ and Mg‐Doped LaGaO3

The electrode performance of a single solid oxide fuel cell was evaluated using a 500 μm thick (LSGM) as the electrolyte membrane. Comparison of (LSCo) and (LSM) as cathodes showed LSCo gave an exchange current density two orders of magnitude higher than that of LSM. Comparison of and LSGM/Ni as anodes showed a degradation of the latter with time, and studies of the anode‐electrolyte interface and the reactivity of NiO and LSGM suggest better anode performances can be obtained with a buffer layer that prevents formation of . The cell performance showed that, with a proper choice of electrode materials and LSGM as the electrolyte, a SOFC operating at temperatures 600°C < T op < 800°C is a realistic goal.