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Numerical Simulation of Electrolyte-Supported Planar Button Solid Oxide Fuel Cell

A. Aman[1], R. Gentile[1], Y. Chen[1], X. Huang[2], Y. Xu[1], N. Orlovskaya[1]
[1]Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL, USA
[2]Department of Mechanical Engineering, University of South Carolina, Columbia, SC, USA
Published in 2012

Solid oxide fuel cells (SOFCs) are electrochemical conversion devices that utilize ceramics as their electrolyte material for oxygen conduction. Compared to other types of fuel cells, they operate at relatively high temperatures, typically 400°C to 1000°C, and have an electrical efficiency over 50% and combined heat and power efficiency over 80%. One way to improve cell performance is to use better electrolyte materials. The idea of the presented research is to develop a layered electrolyte design, where 8 mol% Yttria (Y2O3) stabilized Zirconia (ZrO2) [YSZ] and 10 mol% SC2O3-1 mol% CeO2-ZrO2 [SCSZ] electrolyte layers will be combined into one layered electrolyte enhancing both ionic conductivity and mechanical stability. The paper will present the improved SOFC performace through simulations.

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