Effect of water transport properties on a PEM fuel cell operating with dry hydrogen
Effect of water transport properties on a PEM fuel cell operating with dry hydrogen
复制标题
水传输特性对使用干氢运行的 PEM 燃料电池的影响
DOI：
10.1016/j.electacta.2006.04.043
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发表时间：
2006
影响因子：
6.6
通讯作者：
Huamin Zhang
中科院分区：
文献类型：
--
作者：
Yingjun Cai;Junming Hu;Haipeng Ma;B. Yi;Huamin Zhang
在这项工作中，通过膜电阻测量和水平衡实验来研究使用干氢运行的质子交换膜燃料电池的可行性。结果表明，当电池中使用薄膜时，当阳极湿度从饱和变为干燥时，性能和膜电阻略有变化。与阳极湿度相比，阴极湿度对电池性能的影响更为严重。水平衡实验表明，即使阳极加湿，净水传输系数仍为负，并且液态水不仅存在于阴极中，而且存在于阳极中。高阴极湿度不利于阳极和阴极中水的去除。
In this work, membrane resistance measurement and water balance experiment were implemented to investigate the feasibility for a PEM fuel cell operating with dry hydrogen. The results showed that when a thin membrane was used in a cell the performance and the membrane resistance changed a little while the anode humidity changed from saturated to dry. Comparing with the anode humidity, the influence of the cathode humidity was serious on the cell performance. The water balance experiments showed that the net water transport coefficient was negative even the anode was humidified and liquid water existed not only in the cathode but also in the anode. High cathode humidity was disadvantage for the removal of water both in the anode and the cathode.