Geometric requirements of solid electrolyte cells with a reference electrode

被引:213
作者
Winkler, J [1 ]
Hendriksen, PV [1 ]
Bonanos, N [1 ]
Mogensen, M [1 ]
机构
[1] Riso Natl Lab, Mat Res Dept, DK-4000 Roskilde, Denmark
关键词
D O I
10.1149/1.1838436
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A range of solid electrolyte cell geometries has been evaluated in terms of their suitability for measurements of the working electrode polarization resistance in a three-electrode configuration. The potential and current density distributions in the cells are calculated numerically. If the current density at the working electrode is not uniform, the standard procedure of evaluating the electrode polarization resistance from the experimental data is inadequate and may lead to erroneous results. Simulations are presented for cells with thin electrolytes and for pellet-based geometries with large electrolyte thickness.
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页码:1184 / 1192
页数:9
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