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Degradation Accelerated Stress Test of Electrode and Membrane in PEMFC

PEMFC에서 전극과 전해질 막의 열화 가속 시험

  • 송진훈 (순천대학교 화학공학과) ;
  • 김세훈 (현대자동차 환경기술연구소) ;
  • 안병기 (현대자동차 환경기술연구소) ;
  • 고재준 (현대자동차 환경기술연구소) ;
  • 박권필 (순천대학교 화학공학과)
  • Received : 2012.03.27
  • Accepted : 2012.04.27
  • Published : 2012.10.01

Abstract

Until a recent day, degradation of PEMFC MEA (membrane and electrode assembly) has been studied, separated with membrane degradation and electrode degradation, respectively. But membrane and electrode were degraded coincidentally at real PEMFC operation condition. Therefore in this work, AST (Accelerated Stress Test) of MEA degradation was done at the condition that membrane and electrode were degraded simultaneously. There was interaction between membrane degradation and electrode degradation. Membrane degradation reduced the decrease range of catalyst active area by electrode degradation. Electrode degradation reduces increase range of the hydrogen crossover current and FER (Fluoride Emission Rate) by membrane degradation.

Acknowledgement

Supported by : 지식경제부

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