DING Jian¹, LU Yongjun¹, CAO Xinlei¹, SHANG Shuaipeng¹, WANG Xia², WANG Fenghui¹

(1. Bio-inspired and Advanced Energy Research Center, School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 710129, Shaanxi, China; 2. School of Civil Engineering and Architecture, Xi’an Technological University, Xi'an 710021, Shaanxi, China)

Abstract: The continuously graded anode functional layer is introduced in anode-supported solid oxide fuel cell (SOFC) to study its effect on mechanical stability of SOFC. The results show that the stress of the anode layer increases with the increase of the thickness of the gradient layer, while the stress of the electrolyte layer and the cathode layer decreases. In addition, the gradient index can also affect the change of the curvature of the battery, and the curvature of the battery decreases as the gradient index increases. Also the failure probability of cell anode is discussed by introducing Weibull statistic.
Key words: continuously graded functional layer; SOFC; mechanical stabilit