In this study, a thin (less than 1 micrometer) interlayer of gadolinia doped ceria (GDC) was applied by aerosol deposition (AD) process between YSZ electrolyte and LSCF-GDC composite cathode. The GDC interlayer was co-fired with the cathode without an additional heat treatment step. Performance of the cells with the GDC layer was evaluated with small button type cells. The results show that the GDC layer was dense enough to successfully prevent the formation of SrZrO3 layer after cathode heat treatments under 1100°C. Electrochemical performance of the cells largely depended on the sintering temperatures. Maximum power densities were 1.0 ± 0.1 W/cm2 at 750°C after sintering at the temperatures between 1000°C and 1060°C. Through SEM and TEM study, solid solution layer at the interface of GDC layer and YSZ layer was found in the specimen after sintering at 1000°C and SrZrO3 layers on both sides of the GDC layer after heat treatment at 1100°C. These layers contributed to the poor performance of the cells sintered at over 1080°C. Therefore, the temperatures for cathode sintering have to be precisely controlled to get the best performance. AD process requires week vacuum and takes only couple minutes to finish deposition. This presentation also shows scaling up the ADM process to 320 mm × 220 mm planar cells for dozens kW stack application at the Research Institute of Industrial Science and Technology (RIST) in Korea. Long term operation tests for the large cells are now on process.
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ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology
June 14–16, 2010
Brooklyn, New York, USA
Conference Sponsors:
- Advanced Energy Systems Division
ISBN:
978-0-7918-4404-5
PROCEEDINGS PAPER
Anode Supported SOFC With GDC Barrier Layer Deposited by Aerosol Deposition Method
Byeong-Geun Seong,
Byeong-Geun Seong
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
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Jung-Hoon Song,
Jung-Hoon Song
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
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Young-Min Park,
Young-Min Park
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
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Hong-Youl Bae,
Hong-Youl Bae
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
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Jin-Soo Ahn,
Jin-Soo Ahn
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
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Do-Hyeong Kim,
Do-Hyeong Kim
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
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Joong-Hwan Jun,
Joong-Hwan Jun
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
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Jong-Jin Choi,
Jong-Jin Choi
Korea Institute of Materials Science, Changwon, Gyeongnam, Korea
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Dong-Soo Park
Dong-Soo Park
Korea Institute of Materials Science, Changwon, Gyeongnam, Korea
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Byeong-Geun Seong
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
Jung-Hoon Song
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
Young-Min Park
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
Hong-Youl Bae
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
Jin-Soo Ahn
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
Do-Hyeong Kim
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
Joong-Hwan Jun
Research Institute of Industrial Science and Technology, Pohang, Gyeongbuk, Korea
Jong-Jin Choi
Korea Institute of Materials Science, Changwon, Gyeongnam, Korea
Dong-Soo Park
Korea Institute of Materials Science, Changwon, Gyeongnam, Korea
Paper No:
FuelCell2010-33288, pp. 351-357; 7 pages
Published Online:
December 3, 2010
Citation
Seong, B, Song, J, Park, Y, Bae, H, Ahn, J, Kim, D, Jun, J, Choi, J, & Park, D. "Anode Supported SOFC With GDC Barrier Layer Deposited by Aerosol Deposition Method." Proceedings of the ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 1. Brooklyn, New York, USA. June 14–16, 2010. pp. 351-357. ASME. https://doi.org/10.1115/FuelCell2010-33288
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