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| Abstract No.: |
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Scheduled at:
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Wednesday, May 11, 2016, Room 3H + 3I + 3J 11:40 AM
Power Generation - Fuel Cell I
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| Title: |
High-performance porous metal supported solid oxide fuel cells fabricated at low temperature by optimized plasma spraying
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| Authors: |
Chang-Jiu Li / Xi'an Jiaotong University, P.R. China
Shan-Lin Zhang* / State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, China
Cheng-Xin Li/ State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, China
Guan-Jun Yang/ State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, China
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| Abstract: |
The advantages of porous metal supported solid oxide fuel cells (PMS-SOFCs) include lower material costs, increased tolerance to mechanical and thermal stresses, longer operational life, and fast response to power demand. However, a critical step toward commercial application of PMS-SOFCs is the development of a low-temperature process for fabrication of dense electrolyte membranes and porous electrodes on a porous metallic supporting substrate. Plasma spraying (PS) is considered as cost-effective fabrication of SOFCs because it is a proven low-cost, large-scale industrial production process that dose not require any high-temperature sintering process. Thus, in the present study, a porous 430 steel supported cell was fabricated using only plasma spraying processes. Porous Ni/Ce0.8Gd0.2O2(Ni/GDC) anode, ~20 ¼m dense scandia stabilized zirconia and GDC electrolyte membranes were deposited by atmospheric plasma spraying (APS). Nano-network La0.6Sr0.4Co0.2Fe0.8O3/GDC composite cathode was prepared by liquid plasma spraying. At 0.7 V, the PMS-SOFCs demonstrate power densities of 0.35 and 1.5 W cm-2 at 500 and 700 °C, respectively. At 500 °C, the cell showed a good stability after 1000 h test. The excellent performance of the cell suggested that plasma spraying is a promising approach for large-scale manufacturing of high-performance PMS-SOFCs.
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