Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Performance of a 1 kW PEMFC Stack Using the TiN-Coated 316 Stainless Steel Bipolar Piates

TiN이 코팅된 316 스테인리스강 분리판을 이용한 1 kW 급 고분자전해질 연료전지 스택의 운전특성

  • Jeon, U.-S. (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Jo, E.-A. (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Ha, H.Y. (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Hong, S.-A. (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Oh, I.-H. (Fuel Cell Research Center, Korea Institute of Science and Technology)
  • 전의식 (한국과학기술연구원 연료전지연구센터) ;
  • 조은애 (한국과학기술연구원 연료전지연구센터) ;
  • 하흥용 (한국과학기술연구원 연료전지연구센터) ;
  • 홍성안 (한국과학기술연구원 연료전지연구센터) ;
  • 오인환 (한국과학기술연구원 연료전지연구센터)
  • Published : 2004.03.30
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Abstract

A 12-cell PEMFC stack was fabricated using the TiN-coated 316 stainless steel bipolar plates as substitute for the expensive and brittle graphite bipolar plates. Open cirtuit voltage and the maximum power of the stack was 12.08 V and 1.197 kW (199.5 A @ 6 V), respectively. Volumetric and gravimetric power density of the stack was calculated to be 373 W/L and 168 W/kg, respectively. Performance of each cell was quite uniform initially while degraded at a singnificantly different rate. During the 1,000 hr-operation at a constant load of 48 A, stack voltage decreased from 9.0 to 7.98 V at a degradation rate of 11 %/1,000 hr. However, degradation rate of each cell was in the wide rage from 1.2 to 31 %/1,000 hr.

Keywords

References

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