Calculation of the e.m.f. of solid oxide fuel cells

被引：39

作者：

Zha, SW ^{[1
]}

Xia, CR ^{[1
]}

Meng, GY ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Anhua 230026, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2001年 / 31卷 / 01期

基金：

中国国家自然科学基金;

关键词：

defect chemistry; electromotive force; solid oxide fuel cells;

D O I：

10.1023/A:1004138703860

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electromotive force (e.m.f.) of a solid oxide fuel cell (SOFC) based on fluorite structure electrolyte is calculated by defect chemistry analysis. This is strongly influenced by the characteristic oxygen pressure, P-O*, at which the ionic transference number of the electrolyte is 0.5. It is concluded that e.m.f. decreases with increasing temperature to that of a purely ionic electrolyte-based fuel cell. The low anodic oxygen partial pressure has a smaller influence on the SOFC based on an electrolyte with mixed conduction than on the one based on a purely ionic electrolyte.

引用

页码：93 / 98

页数：6

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