Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Microstructure and Electrical Properties of Single Cells Based on a Ni-YSZ Cermet Anode for IT-SOFCs

중.저온헝 SOFC를 위한 Ni-YSZ 연료극 지지체형 단전지 미세구조와 전기적 특성

  • Park, Jae-Keun (Strategic Technology Laboratory, Korea Electric Power Research Institute) ;
  • Yang, Su-Yong (Strategic Technology Laboratory, Korea Electric Power Research Institute) ;
  • Lee, Tae-Hee (Strategic Technology Laboratory, Korea Electric Power Research Institute) ;
  • Oh, Je-Myung (Strategic Technology Laboratory, Korea Electric Power Research Institute) ;
  • Yoo, Young-Sung (Strategic Technology Laboratory, Korea Electric Power Research Institute) ;
  • Park, Jin-Woo (Daesung Industrial Co., Ltd.)
  • 박재근 (한국전력공사 전력연구원 전략기술연구소) ;
  • 양수용 (한국전력공사 전력연구원 전략기술연구소) ;
  • 이태희 (한국전력공사 전력연구원 전략기술연구소) ;
  • 오제명 (한국전력공사 전력연구원 전략기술연구소) ;
  • 유영성 (한국전력공사 전력연구원 전략기술연구소) ;
  • 박진우 (대성산업(주) 연구개발실)
  • Published : 2006.12.31
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Abstract

One of the main issues of Solid Oxide Fuel Cells (SOFCs) is to reduce the operating temperature to $750^{\circ}C$ or less. It has advantages of improving the life of component parts and the long-term stability of a system, so the production cost could be decreased. In order to achieve that, the ohmic and polarization loss of a single cell should be minimized first. This paper presents.to fabricate anode-supported single cells with controlling microstructure as a function of particle size and volume of graphite and NiO-YSZ weight ratio. By means of optimizing the manufactural condition through microstructure analysis and performance evaluation, the single cell which had NiO-YSZ=6:4, graphite volume of 24% and graphite size of $75{\mu}m$ as the anode composition showed a distinguished power density of $510mW/cm^2$ at $650^{\circ}C$ and $810mW/cm^2$ at $700^{\circ}C$, respectively.

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References

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