Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The Electrochemical Property of the Single-Chamber Solid Oxide Fuel Cell Based on a Zirconia Electrolyte

지르코니아 전해질을 이용한 단실형 고체산화물 연료전지의 전기화학 특성

  • Park, Hee Jung (Department of Advanced Materials Engineering, Daejeon University) ;
  • Joo, Jong Hoon (Department of Advanced Materials Engineering, Chungbuk National University) ;
  • Yang, Jae-Kyo (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Jin, Yun Ho (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Lee, Kyu Hyoung (Department of Nano Applied Engineering, Kangwon National University)
  • 박희정 (대전대학교 신소재공학과) ;
  • 주종훈 (충북대학교 신소재공학과) ;
  • 양재교 (고등기술연구원 신소재공정센터) ;
  • 진연호 (고등기술연구원 신소재공정센터) ;
  • 이규형 (강원대학교 나노응용공학과)
  • Received : 2016.03.19
  • Accepted : 2016.07.18
  • Published : 2016.08.01
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Abstract

Single-chamber solid oxide fuel cells (SC-SOFCs) consist of only one gas chamber, in which both the anode and the cathode are exposed to the same fuel-oxidant mixture. Thus, this configuration shows good thermal and mechanical resistance and allows rapid start-up and -down. In this study, the unit cell consisting of $La_{0.8}Sr_{0.2}MnO_3$ (cathode) / $Zr_{0.84}Y_{0.16}O_{2-x}$ (electrolyte) / $Ni-Zr_{0.84}Y_{0.16}O_{2-x}$ (anode) was fabricated and its electrochemical property was investigated as a function of temperature and the volume ratio of fuel and oxidant for SC-SOFCs. Impedance spectra were also investigated in order to figure out the electrical characteristics of the cell. As a result, the cell performance was governed by the polarization resistances of the electrodes. The cell exhibited an acceptable cell-performance of $86mW/cm^2$ at $800^{\circ}C$ and stable performance for 3 hs under 0.7 V.

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References

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