Solid oxide fuel cells (SOFCs) are expected to be a future power source. Simulation analyses of SOFCs can help to understand well the interactive functions among the multiphysics phenomena in the SOFC system. A three-dimensional multiphysics finite-element model was used to simulate the performance of a half-cell SOFC with yttria-stabilized zirconia (8YSZ) composite cathode on one side of the 8YSZ electrolyte before and after aging. Multiphysics phenomena in the SOFC were considered in the modeling. The current/voltage curves simulated matched the experimental data before and after aging. The average current density was found to have a linear relationship to the logarithm of the effective exchange current density. The effect of the effective ionic conductivity of the composite cathode was more apparent for small total effective ionic conductivity values than for large ones.
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February 2005
This article was originally published in
Journal of Fuel Cell Science and Technology
Article
A Multiphysics Modeling Study of Yttria-Stabilized Zirconia Composite Cathodes for Solid Oxide Fuel Cells
Ke An,
Ke An
Metals and Ceramics Division
, Oak Ridge National Laboratory, Oak Ridge, TN, 37831
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Kenneth L. Reifsnider
Kenneth L. Reifsnider
Connecticut Global Fuel Cell Center
, University of Connecticut, Storrs, CT 06269
Search for other works by this author on:
Ke An
Metals and Ceramics Division
, Oak Ridge National Laboratory, Oak Ridge, TN, 37831
Kenneth L. Reifsnider
Connecticut Global Fuel Cell Center
, University of Connecticut, Storrs, CT 06269J. Fuel Cell Sci. Technol. Feb 2005, 2(1): 45-51 (7 pages)
Published Online: October 25, 2004
Article history
Received:
June 2, 2004
Revised:
October 25, 2004
Citation
An, K., and Reifsnider, K. L. (October 25, 2004). "A Multiphysics Modeling Study of Yttria-Stabilized Zirconia Composite Cathodes for Solid Oxide Fuel Cells." ASME. J. Fuel Cell Sci. Technol. February 2005; 2(1): 45–51. https://doi.org/10.1115/1.1842782
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