Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Study on Unit Cell Design for the Performance Enhancement in PEMFC System

PEMFC 시스템의 성능향상을 위한 단위전지 설계에 관한 연구

  • 김홍건 (전주대학교 기계공학과) ;
  • 김유신 (전주대학교 대학원 기계공학과) ;
  • 양성모 (전북대학교 기계항공시스템 공학부) ;
  • 나석찬 (전북대학교 대학원 정밀기계공학과)
  • Published : 2005.08.01
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Abstract

The catalyst layer design is one of the most important factors to enhance the performance of PEMFC(Proton Exchange Membrane Fuel Cell) system. The hydrophobic and ion conductive type is studied for the MEA(Membrane Electrolyte Assembly). It is found that those have some limitations for performance enhancement when they are used separately. Thus, the dual catalyst type, a mixed model, is developed for the better MEA performance. In the meantime, the design of flow field plate is subsequently carried out in order to give more enhanced output during its operation. The conductivity of flow field plate showed better performance in the case of manufactured by the more compressed process(20MPa) than by the less compressed process(10MPa). The micro-structure of the flow field plate is examined in details using SEM(Scanning Electron Microscope) to analyse the effects on the different compression processes.

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