Optimization of the Solid Oxide Fuel Cell Anode by Tape Casting

doi:10.3724/SP.J.1077.2014.13235

Abstract

Abstract: The scandia-stabilized zirconia (SSZ) electrolyte supported by Ni-YSZ anode was prepared by tape casting and co-firing techniques. In order to improve the electrochemical activity, a Ni-SSZ anode active layer was introduced between the supporting anode and the electrolyte film. The anode activity was optimized by adjusting the thickness and mass ratio of SSZ: NiO in the active layer. The pore distribution and porosity of supporting anode were optimized by comparing the performance of cells with different content of pore former in the supporting anode. As a result, the thickness of active layer was optimized to be 35 μm, with w(SSZ):w(NiO)=1:1, and 10wt% carbon as anode pore former. The composite cathode of LSM-SSZ was prepared by screen printing and sintering method, and the maximum power density of single cell as high as 0.96 W/cm² was obtained at 750℃. The performance was about 2.3 times higher than what previously reported by our group.

Key words: solid oxide fuel cell, anode active layer, optimization, tape casting

CLC Number:

TG174

LUO Ting, SHI Jian, WANG Shao-Rong, ZHAN Zhong-Liang. Optimization of the Solid Oxide Fuel Cell Anode by Tape Casting[J]. Journal of Inorganic Materials, 2014, 29(2): 203-208.

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