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。%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.
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