Preparation and Performance of Solid Oxide Fuel Cell Connector

Lanthanum chromate (LaCrO3) is a kind of ceramic bonding material in common use at present, in order to improve the phenomenon of poor sintering activity and conductivity, this article doped lanthanum chromate (LaCrO3)-based materials with different elements and ratios to improve their performance. A series of La0.8Ca0.2Cr1−xCuxO3 (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) perovskite-type oxides were prepared by sol–gel method using LaCrO3-based materials modified by Ca–Cu doping. After doping, the material has a series of advantages, such as coefficient of thermal expansion matching with electrolyte, and good chemical compatibility with other parts of the battery, good chemical stability in the reduction atmosphere, and high conductivity in the air and the reduction atmosphere, at 800 °C, the maximum conductivity of La0.8Ca0.2Cr1−xCuxO3 is 22.1 s cm⁻¹ in air and 12.31 s cm⁻¹ in H2.