| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.2830 |
| 발표분야 |
에너지 |
| 제목 |
Transient behavior during the humidity interruption at the cathode of polymer electrolyte membrane (PEM) fuel cell |
| 초록 |
Performance of polymer electrolyte membrane (PEM) fuel cell was studied during the humidity interruption of cathode. Several steps of voltage and high frequency resistance (HFR) were observed. Dry humidity condition significantly enhanced the voltage of PEM fuel cell, since it suppressed the flooding effect and increased the oxygen reduction reaction (ORR) rate at cathode. During the humidity interruption the performance of PEM fuel cell could actually exceed the initial performance giving direct evidence for the optimum humidity condition of cathode. These findings have led us to find the way for enhancing the performance of MEA up to ca. 17% depending on the operation condition. |
| 저자 |
노태근, 김 혁, 이상우, 최성호, 김지수, 이원호
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| 소속 |
LG화학 기술(연) |
| 키워드 |
humidity interruption; high frequency resistance; oxygen reduction reaction
|
| E-Mail |
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| 원문파일 |
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