차량용 스택 고출력 내구성능

High Durability of Stack for Automobile

  • 김영민 (현대 기아 자동차 연구개발본부) ;
  • 이종현 (현대 기아 자동차 연구개발본부) ;
  • 윤종진 (현대 기아 자동차 연구개발본부) ;
  • 조장호 (현대 기아 자동차 연구개발본부)
  • 발행 : 2007.06.21

초록

The durability of 80 kW class stack module was tested in hydrogen recirculation and non-recirculation systems with the condition of 300Amps (constant current mode) and hydrogen pulse purging (10 seconds close/0.8 seconds open). A localized membrane failure in the interfacial area between membrane and sub-gasket, carbon corrosion in cathode electrode, and Pt dissolution/extraction have been found through the post mortem analysis such as CV, Impedance, SEM, and so on. The main reason of these mechanisms will be discussed in this study.

키워드