Review on Perovskite Electrolyte for Proton-Conducting Solid Oxide Fuel Cells

This review focuses on the perovskite electrolytes for the intermediate temperature solid oxide fuel cells(IT-SOFCs).A broad overview of the history,the recent research progresses and the expectations for the future are provided in this thesis based on the design and improvement of proton-conducting oxides.On the basis of the structure of perovskite-type IT-SOFCs,the Ce-based,Zr-based and Ce/Zr-based electrolytes are discussed in detail; Both the chemical stability of Ce-based electrolytes and the ionic conductivity and sinteractivity of Zr-based membranes still remain to improve; Thus,Ba-based cerate and zirconate are the hotspots of perovskite electrolyte for the research of IT-SOFCs.Increasing the ionic conductivity,improving the chemical stability and sinteractivity will be the main difficulties and challenges in the future.In addition,designing advanced electrolytes based on the structure of the traditional perovskite-type IT-SOFCs,exploring novel electrolytes with perovskite structure and new techniques and methods for the preparation of membranes will play an important role for the application of IT-SOFCs.