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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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The Electrochemical Performance Evaluation of PBI-based MEA with Phosphoric Acid Doped Cathode for High Temperature Fuel Cell

인산 도핑 PBI계 막전극접합체를 적용한 고온형 수소연료전지의 전기화학적 내구성 연구

  • RHEE, JUNKI (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • LEE, CHANMIN (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • JEON, YUKWON (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • LEE, HONG YEON (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • PARK, SANG SUN (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • KIM, TAE YOUNG (Energy & Environment Lab., Samsung Advanced Institute of Technology) ;
  • KIM, HEESEON (Department of Mechanical Engineering, Yonsei University) ;
  • SONG, SOONHO (Department of Mechanical Engineering, Yonsei University) ;
  • PARK, JUNG OCK (Energy & Environment Lab., Samsung Advanced Institute of Technology) ;
  • SHUL, YONG-GUN (Department of Chemical and Biomolecular Engineering, Yonsei University)
  • 이준기 (연세대학교 화공생명공학과) ;
  • 이찬민 (연세대학교 화공생명공학과) ;
  • 전유권 (연세대학교 화공생명공학과) ;
  • 이홍연 (연세대학교 화공생명공학과) ;
  • 박상선 (연세대학교 화공생명공학과) ;
  • 김태영 (삼성종합기술원) ;
  • 김희선 (연세대학교 기계공학과) ;
  • 송순호 (연세대학교 기계공학과) ;
  • 박정옥 (삼성종합기술원) ;
  • 설용건 (연세대학교 화공생명공학과)
  • Received : 2017.07.25
  • Accepted : 2017.10.30
  • Published : 2017.10.30
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Abstract

A proton exchange membrane fuel cell (PEMFC) operated at $150^{\circ}C$ was evaluated by a controlling different amount of phosphoric acid (PA) to a membrane-electrode assembly (MEA) without humidification of the cells. The effects on MEA performance of the amount of PA in the cathode are investigated. The PA content in the cathodes was optimized for higher catalyst utilization. The highest value of the active electrochemical area is achieved with the optimum amount of PA in the cathode confirmed by in-situ cyclic voltammetry. The current density-voltage experiments (I-V curve) also shows a transient response of cell voltage affected by the amount of PA in the electrodes. Furthermore, this information was compared with the production variables such as hot pressing and vacuum drying to investigate those effect to the electrochemical performances.

Keywords

References

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