A polarization model for a solid oxide fuel cell with a mixed ionic and electronic conductor as electrolyte

被引：73
|
作者：
Shen, Shuanglin [1 ]
Yang, Yupeng [1 ]
Guo, Liejin [1 ]
Liu, Hongtan [2 ]
机构：
[1] Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China
[2] Univ Miami, Clean Energy Res Inst, Dept Mech & Aerosp Engn, Coral Gables, FL 33124 USA
来源：
JOURNAL OF POWER SOURCES | 2014年 / 256卷
关键词：
Polarization model; Solid oxide fuel cell; Mixed ionic and electronic conductor; Leakage current; TRANSPORT-EQUATIONS; DOPED CERIA; SOFCS;
D O I：
10.1016/j.jpowsour.2014.01.041
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A polarization model for a solid oxide fuel cell (SOFC) with a mixed ionic and electronic conductor (MIEC) electrolyte is developed based on charge transport equation and a constant ionic conductivity assumption. The electrochemical reaction at the electrode is described by the Butler-Volmer equation and the energy conservation equation is included as an additional condition to complete the model. The modeling results agree well with experimental data. Utilizing this model the effects of key parameters, including conductivities of electrolyte, electrolyte thickness and cathode exchange current density on the performance of the SOFC are analyzed. The distribution of oxygen partial pressure in the electrolyte is also obtained. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：43 / 51
页数：9
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