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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Effect of Carbon Fiber Filament and Graphite Fiber on the Mechanical Properties and Electrical Conductivity of Elastic Carbon Composite Bipolar Plate for PEMFC

PEMFC용 탄성 탄소 복합재료 분리판의 기계적 강도 및 전기전도도에 미치는 탄소섬유 필라멘트와 흑연 섬유의 영향

  • Lee, Jaeyoung (Hydrogen Fuel Cell Parts and Applied Technology RIC, Woosuk University) ;
  • Lee, Wookum (Department of Advanced Materials, Woosuk University) ;
  • Rim, Hyungryul (Hydrogen Fuel Cell Parts and Applied Technology RIC, Woosuk University) ;
  • Joung, Gyubum (Department of Electricity and Electrical Engineering, Woosuk University) ;
  • Lee, Hongki (Hydrogen Fuel Cell Parts and Applied Technology RIC, Woosuk University)
  • 이재영 (우석대학교 수소연료전지 부품 및 응용기술 지역혁신센터) ;
  • 이우금 (우석대학교 신소재공학과) ;
  • 임형렬 (우석대학교 수소연료전지 부품 및 응용기술 지역혁신센터) ;
  • 정규범 (우석대학교 전기전자공학과) ;
  • 이홍기 (우석대학교 수소연료전지 부품 및 응용기술 지역혁신센터)
  • Received : 2014.02.26
  • Accepted : 2014.04.30
  • Published : 2014.04.30
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Abstract

Highly conductive bipolar plate for polymer electrolyte membrane fuel cell (PEMFC) was prepared using phenol novolac-type epoxy/graphite powder (GP)/carbon fiber filament (CFF) composite, and a rubber-modified epoxy resin was introduced in order to give elasticity to the bipolar plate graphite fiber (GF) was incorporated in order to improve electrical conductivity. To find out the cure condition of the mixture of novolac-type and rubber-modified epoxies, differential scanning calorimetry (DSC) was carried out and their data were introduced to Kissinger equation. And tensile and flexural tests were carried out using universal testing machine (UTM) and the surface morphology of the fractured specimen and the interfacial bonding between epoxy matrix and CFF or GF were observed by a scanning electron microscopy (SEM).

Keywords

References

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