| 전자빔 물리증착을 이용한 고체 산화물 연료전지의 제조: II. 단전지 성능 |
| 김형철, 박종구, 정화영, 손지원, 김주선, 이해원, 이종호 |
| 한국과학기술연구원 나노재료연구센터 |
| Fabrication of Solid Oxide Fuel Cells via Physical Vapor Deposition with Electron Beam: II. Unit Cell Performance |
| Hyoung-Chul Kim, Jong-Ku Park, Hwa-Young Jung, Ji-Won Son, Joo-Sun Kim, Hae-Weon Lee, Jong-Ho Lee |
| Nano-Materials Research Center, Korea Institute of Science and Technology |
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| ABSTRACT |
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In this paper, anode supported SOFC with columnar structured YSZ electrolyte was fabricated via Electron Beam Physical Vapor Deposition (EBPVD) method. Liquid condensation process was employed for the preparation of NiO-YSZ substrate and the high power electron beam deposition method was used for the deposition of YSZ electrolyte film. Double layered cathode with LSM-YSZ and LSM was printed on electrolyte via screen-printing method and fired at $1150^{circ}C$ in air atmosphere for 3 h. The electrochemical performance and the long-term stability of $5{times}5cm^2$ single cell were investigated with DC current-voltage characteristics and AC-impedance spectroscopy. According to the investigation, $5{times}5cm^2$ sized unit cell showed the maximum power density of around $0.76W/cm^2$ at $800^{circ}C$ and maintained the stable performance over 400 h. |
| Key words:
Solid oxide fuel cell, Electron beam physical vapor deposition, YSZ, Unit cell, Electrochemical performance |
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