한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제23권1호
  • /
  • Pages.49-55
  • /
  • 2015
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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연료전지 내구성능 향상을 위한 공기차단밸브 개발

Development of Air Cutoff Valve for Improving Durability of Fuel Cell

  • 박정희 (현대자동차 연료전지개발1팀) ;
  • 이창하 (현대자동차 연료전지개발1팀) ;
  • 권혁률 (현대자동차 연료전지개발1팀) ;
  • 김치명 (현대자동차 연료전지개발1팀) ;
  • 최규성 (모토닉 R&D Center)
  • 투고 : 2014.06.11
  • 심사 : 2014.08.11
  • 발행 : 2015.01.01
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초록

In this study, among in various scenarios of the duration degradation of the fuel cell, countermeasures for the cathode carbon carrier oxidation and the deactivation of catalyst by hydrogen / air interface formation have been studied. so the system was applied to the air cutoff valve. In terms of the component, the cold start performance, electrical stability, the airtight performance were mainly designed and their performance was confirmed. And in terms of the system, the air electrode flow is blocked off, so the oxygen concentration drops when system is powered off, As a result, By reducing unit cell voltage which affect the durability of the fuel cell reached up to 0.8V, the improved durability of the fuel cell was confirmed.

키워드

참고문헌

  1. D. W. Jung, S. H. Kim, J. H. Jung, J. B. Kim and E. S. Oh, "Electrochemical Durability of Pt Catalysts Supported on Carbon Nanotubes in Reverse Potential of PEMFCs Created by Hydrogen Starvation," KSAE Spring Conference Proceedings, pp.65-69, 2010.
  2. H. Tang, Z. Qi, M. Ramani and J. F. Elter, "PEM Fuel Cell Cathode Carbon Corrosion due to the Formation of Air/Fuel Boundary at the Anode," J. of Power Sources, Vol.158, Issue 2, pp.1306-1312, 2006. https://doi.org/10.1016/j.jpowsour.2005.10.059
  3. The Fuel Cell Technical Team of U.S. DRIVE (Driving Research and Innovation for Vehicle efficiency and Energy sustainability), Fuel Cell Technical Team Roadmap, USDRIVE, p.10, 2013.
  4. S. H. Kim, DC & AC Motor Control, Bocdoo, Chapter 2, 2008.
  5. J. H. Park, C. H. Lee, H. R. Kwon, C. M. Kim and Y. S. Park, "Development of Air Cutoff Valve for Improving Durability of Fuel Cell," KSAE Spring Conference Proceedings, pp.1269-1275, 2014.