| 일축가압/스크린인쇄 공정에 의해 제조된 음극지지형 SOFC의 출력특성 |
| 정화영, 노태욱1, 김주선1, 이해원1, 고행진2, 이기춘2, 이종호 |
한국과학기술연구원 나노재료연구센터
1한국과학기술연구원 나노재료연구센
2현대-기아 연구개발본부 연료전지개발 |
| Power Generating Characteristics of Anode-Supported SOFC fabricated by Uni-Axial Pressing and Screen Printing |
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| ABSTRACT |
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To enhance the performance of anode-supported SOFC, single cell fabrication procedure was changed for better and resulting power generating characteristics of single cell were investigated. Liquid condensation process was employed for the granulation of NiO/YSZ powder mixture and the produced powder granules were compacted into anode green substrate by uni-axial pressing. YSZ electrolyte was printed on green substrate via screen-printing method and co-fired at 1400$^{circ}C$ for 3 h. LSM/YSZ composite cathode of which the composition and heat treatment condition was adjusted to minimize the polarization#resistance with AC-impedance spectroscopy, was screen printed. The final single cell size from this multi-step procedure was 5${times}$5 $textrm{cm}^2$ and 10${times}$10 $textrm{cm}^2$. The maximum power densities of 5${times}$5 and 10${times}$10 single cells were about 0.45 W/$textrm{cm}^2$ and 0.22 W/$textrm{cm}^2$ at 800$^{circ}C$, which are two times superior than those from single cells fabricated by the conventional process in previous our work. |
| Key words:
Anode-supported SOFC, Performance, Screen printing, Uni-axial pressing |
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