Fabrication and performance evaluation of 3-cell SOFC stack based on planar 10 cm × 10 cm anode-supported cells |
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| Affiliation: | 1. Fuel Cell Research Center, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea;2. Department of Advanced Energy Technology, Korea University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 305-350, Republic of Korea;1. Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research (IEK-3), Germany;2. Forschungszentrum Jülich GmbH, Central Institute for Engineering, Electronics and Analytics (ZEA-1), Germany;3. Chair for Fuel Cells, RWTH Aachen University, Germany;1. High Temperature Energy Materials Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, South Korea;2. Department of Mechanical Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea;3. Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea;1. School of Mechanical and Aerospace Engineering, Seoul National University, San 56-1, Daehak-dong, Gwanak-gu, Seoul 151-742, Republic of Korea;2. Department of Intelligent Convergence Systems, Seoul National University, San 56-1, Daehak-dong, Gwanak-gu, Seoul 151-742, Republic of Korea;3. School of Mechanical Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon 440-746, Republic of Korea |
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| Abstract: | This study reports the development of planar-type solid oxide fuel cell (SOFC) stacks based on an internal gas manifold and a cross-flow type design. A single-columned, 3-cell, SOFC stack is assembled using 10 cm × 10 cm anode-supported unit cells, metallic interconnects and glass-based compression-seal gaskets. The power-generating characteristics of the unit cell and stack are characterized as a function of temperature. The practical viability of the stack and stack components is investigated via long-term operation and thermal cycling tests. According to performance evaluation at 700 °C, the short stack produces about 100 W in total power at an average cell voltage of around 0.7 V. There are, however, some scale-up problems related to multi-cell stacking. This work addresses key issues in stack fabrication and performance improvement. |
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