汽车工程
汽車工程
기차공정
AUTOMOTIVE ENGINEERING
2014年
11期
1365-1368
,共4页
质子交换膜燃料电池%停放%性能%快速放电
質子交換膜燃料電池%停放%性能%快速放電
질자교환막연료전지%정방%성능%쾌속방전
PEMFC%shutdown%performance%rapid discharge
本文中对两个连续运行后的质子交换膜燃料电池堆进行停放实验,以研究不同方式的停放对电池性能的影响。结果表明,在连续运行后进行短时间的停放对于电池性能具有恢复作用;而长期停放则会导致电池性能下降并出现显著的片间性能差异,采用密封措施可缓解这种现象,但仍难以避免不可恢复的性能衰减。停机后对电池进行快速放电对性能产生的效果相当于短期停放。
本文中對兩箇連續運行後的質子交換膜燃料電池堆進行停放實驗,以研究不同方式的停放對電池性能的影響。結果錶明,在連續運行後進行短時間的停放對于電池性能具有恢複作用;而長期停放則會導緻電池性能下降併齣現顯著的片間性能差異,採用密封措施可緩解這種現象,但仍難以避免不可恢複的性能衰減。停機後對電池進行快速放電對性能產生的效果相噹于短期停放。
본문중대량개련속운행후적질자교환막연료전지퇴진행정방실험,이연구불동방식적정방대전지성능적영향。결과표명,재련속운행후진행단시간적정방대우전지성능구유회복작용;이장기정방칙회도치전지성능하강병출현현저적편간성능차이,채용밀봉조시가완해저충현상,단잉난이피면불가회복적성능쇠감。정궤후대전지진행쾌속방전대성능산생적효과상당우단기정방。
A shutdown experiment is conducted on two stacks of proton exchange membrane fuel cell ( PEMFC) after continuous operation to study the effects of shutdown with different ways on the performance of fuel cell. The results show that a short time of shutdown after continuous operation has a positive effect on the performance recovery of fuel cell, but a long period of shutdown may lead to performance degradation with significant discrepancy between pieces of fuel cell. Sealing measure may mitigate this adverse effect, but the unrecoverable performance de-cay is still hard to avoid. Rapid discharge after shutdown has a similar effect as that of short period of shutdown.