한국신재생에너지학회:학술대회논문집

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Development of PolymerElectrolytes Based on Ionic Liquids forHigh Temperature/Low Humidity PEFC Applications

고온/저가습 고분자전해질 연료전지를 위한 이온성 액체 기반 고분자 전해질막 개발

  • 새트팔 싱 세콘 ;
  • 박진수 (한국에너지기술연구원, 연료전지연구단) ;
  • 조은경 (한국과학기술원, 생명화학공학과) ;
  • 박구곤 (한국에너지기술연구원, 연료전지연구단) ;
  • 김창수 (한국에너지기술연구원, 연료전지연구단) ;
  • 이원용 (한국에너지기술연구원, 연료전지연구단)
  • Published : 2008.10.16
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Abstract

High temperature polymer electrolyte membranes incorporating ionic liquids (ILs) in different polymers such as commercial fluorinated polymers, sulfonated polymers and recasted nafion have been developed. ILs based on imidazolium cation and different anions possess high ionic conductivity and good thermal stability and have been used in the present study. The membranes containing IL show conductivity ${\sim}10^{-2}S\;cm^{-1}$ above $100^{\circ}C$ under anhydrous conditions and are thermally stable up to $250-300^{\circ}C$. IL acts as a conducting medium in these electrolytes and plays the same role as played by water in fully hydrated nafion membranes. Due to high conductivity and good thermal stability, these membranes are promising materials for PEFCs at higher temperatures under anhydrous conditions.

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