- 연료전지차 스택 내 국부적 수소 부족에 기인한 셀 역전압 거동 모사에 대한 연구
- ㆍ 저자명
- 박지연,임세준,한국일,홍보기,Park. Ji Yeon,Im. Se Joon,Han. Kookil,Hong. Bo Ki
- ㆍ 간행물명
- 한국수소 및 신에너지학회 논문집
- ㆍ 권/호정보
- 2013년|24권 4호|pp.311-319 (9 pages)
- ㆍ 발행정보
- 한국수소및신에너지학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
A clear understanding on cell voltage-reversal behavior due to local hydrogen starvation in a stack is of paramount importance to operate the fuel cell vehicle (FCV) stably since it affects significantly the cell performance and durability. In the present study, a novel experimental method to simulate the local cell voltage-reversal behavior caused by local hydrogen starvation, which typically occurs only one or several cells out of several hundred cells in a stack of FCV, has been proposed. Contrary to the conventional method of overall fuel starvation, the present method of local hydrogen starvation caused the local cell voltage-reversal behavior in a stack very well. Degradation of both membrane electrode assembly (i.e., pin-hole formation) and gas diffusion layer due to an excessive exothermic heat under voltage-reversal condition was also observed clearly.