Research progress on composite cathodes for medium temperature solid oxide fuel cells
With the increasing demand for renewable energy,fuel cells are an efficient,clean,and sustain-able energy conversion source.The operating temperature of solid oxide fuel cells(SOFCs)is relatively low.It can significantly increase the application of this technology and promote the wider use of materials in SOFC with higher reliability at range of(400-600)℃.This article reviews the working principle of solid oxide fuel cells,including the thermodynamics and kinetics during their working process,with a focus on the cathode materials of medium temperature solid oxide fuel cells(IT-SOFC).