Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Fabrication and Property Evaluation of Tubular Segmented-in-Series Solid Oxide Fuel Cell (SOFC)

세그먼트 관형 SOFC의 제작 및 특성 평가

  • Yun, Ui-Jin (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Lee, Jong-Won (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Lee, Seung-Bok (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Lim, Tak-Hyoung (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Park, Seok-Joo (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Song, Rak-Hyun (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Shin, Dong-Ryul (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Han, Kyoo-Seung (Department of Fine chemical Engineering and Appilied chemistry, Chungnam National Univ.)
  • 윤의진 (한국에너지기술연구원 연료전지연구센터) ;
  • 이종원 (한국에너지기술연구원 연료전지연구센터) ;
  • 이승복 (한국에너지기술연구원 연료전지연구센터) ;
  • 임탁형 (한국에너지기술연구원 연료전지연구센터) ;
  • 박석주 (한국에너지기술연구원 연료전지연구센터) ;
  • 송락현 (한국에너지기술연구원 연료전지연구센터) ;
  • 신동렬 (한국에너지기술연구원 연료전지연구센터) ;
  • 한규승 (충남대학교 바이오 응용화학과)
  • Received : 2011.10.16
  • Accepted : 2011.12.04
  • Published : 2012.06.01
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Abstract

A novel design of tubular segmented-in-series(SIS) solid oxide fuel cell (SOFC) sub module was presented in this paper. The tubular ceramic support was fabricated by the extrusion technique. The NiO-YSZ anode and the yttria-stabilized zirconia (YSZ) electrolyte were deposited onto the ceramic support by dip coating method. After sintering at $1350^{\circ}C$ for 5 h, a dense and crack-free YSZ film was successfully fabricated. Also, the multi-layered cathode composed of LSM-YSZ composite, LSM and LSCF were coated onto the sintered ceramic support by dip coating method and sintered at $1150^{\circ}C$. The performance of the tubular SIS SOFC cell and sub module electrically connected by the Ag-glass interconnect was measured and analysed with different fuel flow and operating temperature.

본 논문에서는 세그먼트 관형 고체산화물 연료전지(SOFC)의 설계 및 제작과 특성 분석을 다루고 있다. 관형 세라믹 지지체는 압출 공정을 통하여 제작하였으며, NiO-YSZ 연료극과 YSZ 전해질은 담금 코팅법을 통해 세라믹 지지체에 코팅하였다. 코팅된 세라믹 지지체를 $1,350^{\circ}C$에서 5시간 동안 열처리하였으며, $10{\mu}m$ 미만의 치밀하고, 균열이 없는 YSZ 전해질 층을 얻을 수 있었다. 또한 열처리된 세라믹 지지체에 LSM-YSZ/LSM/LSCF로 구성된 다층 구조 공기극을 담금법으로 코팅하여 $1,150^{\circ}C$에서 열처리하였다. 세라믹 관형 지지체에 코팅된 세그먼트 SOFC 셀은 Ag-glass 연결재를 사용하여 전기적으로 직렬 연결하였으며, 수소연료 유량과 운전 온도에 따른 세그먼트 SOFC의 성능 변화를 측정하였다.

Keywords

Acknowledgement

Supported by : 지식경제부

References

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