A Multi-Physics Model for Solid Oxide Iron-Air Redox Flow Battery 

Wednesday, May 14, 2014
Grand Foyer, Lobby Level (Hilton Orlando Bonnet Creek)
M. Guo (ESim LLC), X. Zhao (Department of Mechanical Engineering, University of South Carolina), R. E. White (University of South Carolina), and K. Huang (Department of Mechanical Engineering, University of South Carolina)
A rigorous physics-based mathematical model for a solid oxide iron-air redox flow battery system is presented in this paper. The modeled flow battery system combines a Fe-FeO redox couple as the energy storage unit and a regenerative solid oxide fuel cell as the electrical functioning unit in a 2D axial symmetric geometry. This model was developed from fundamental theories of reaction engineering in which basic transport phenomena and chemical/electrochemical kinetics are included. The model shows good agreement with the experimental data. Simulation results for the chemical, electrochemical and transport behavior of the battery are discussed.