Fundamentals of Liquid Tin Anode Solid Oxide Fuel Cell (LTA-SOFC) Operation
Conference
·
OSTI ID:1015462
An alternative high temperature fuel cell system, called Liquid Tin Anode Solid Oxide Fuel Cell (LTA-SOFC) technology, is presently under consideration by NETL for the ability to directly convert coal. Before such a fuel cell concept can be considered in system studies, a detailed assessment for the electrochemical activity and SnO and O-atom diffusion within the liquid tin needs to be performed. In addition, the fundamental thermodynamic operation of such a concept needs to be properly analyzed. Initial research efforts to characterize the tin electrochemistry on a button cell at 900°C and with a tin thickness of 6mm showed a peak power density of 40 mW/cm2, and an activation energy for total resistivity of 185600 J/gm-mol. Higher power densities are expected with a more optimized electrolyte interface, and additional tests are being planned. A review of the liquid tin anode cell theoretical operation and performance data will be presented.
- Research Organization:
- National Energy Technology Laboratory - In-house Research
- Sponsoring Organization:
- USDOE Assistant Secretary for Fossil Energy (FE)
- OSTI ID:
- 1015462
- Report Number(s):
- NETL-TPR-2220
- Country of Publication:
- United States
- Language:
- English
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