YU Jianfeng 1,2, LUO Linghong 1, CHENG Liang 1, WANG Leying 1, XIA Changkui 2, XU Xu 1, YU Yongzhi 1
(1. Key Laboratory of Fuel Cell Materials and Devices, Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi, China; 2. Hangzhou Nabel Group Company Limited, Hangzhou 311100, Zhejiang, China)
Abstract: A decrease in operation temperature could accelerate the commercialization of solid oxide fuel cell (SOFC) technology. However, Ohmic impedance of electrolyte and polarization of electrode sharply increase, as the operation temperature is reduced. Therefore, development of these two components is a challenge for SOFCs. From the perspective of electrochemical properties and so on, this paper is aimed to briefly review the progress in electrolyte, anode and cathode. The main technical problems in materials development will be discussed, while suggestions and ideas to improve their performances will also be proposed. Finally, performance optimization of SOFC materials and the design of novel SOFCs are prospected.
Key words: solid oxide fuel cell; electrolyte; anode; cathode