Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on the Performance of PEMFC Using the TiN-Coated 316 Stainless Steel Bipolar Plates

TiN이 코팅된 316 스테인리스강 분리판을 이용한 고분자전해질 연료전지의 성능에 관한 연구

  • Cho, Eun-Ae (Fuel Cell Research Center, Korea Institute of Science and Technology)
  • 조은애 (한국과학기술연구원 연료전지연구센터)
  • Published : 2003.12.30
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Abstract

As an alternative bipolar plate material for polymer electrolyte membrane fuel cell (PEMFC), TiN-coated 316 stainless was evaluated in terms of electrical contact resistance and water contact angle. Performance and lifetime of the TiN-coated 316 bipolar plates were measured in comparison with those of graphite and bare 316 bipolar plates. At a cell voltage of 0.6 V, current density of the single cells using graphite, AISI 316, and TiN/316 bipolar plates was 996, 796, and $896mA/cm^2$, respectively. By coating 316 stainless steel with TiN layer, performance degradation rate determined to be the voltage degradation rate at a cell voltage of 0.6 V was reduced from 2.3 to 0.43 mV/h.

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