PEMFC直通道流场结构对电池性能的影响  

Effects of straight flow-field geometric structure on PEMFC performance

作　　者：李云峰[1] 张华民[1] 胡军[1] 才英华[1] 衣宝廉[1] 

机构地区：[1]中国科学院大连化学物理研究所燃料电池工程中心

出　　处：《电源技术》2005年第2期87-91,共5页Chinese Journal of Power Sources

基　　金：国家自然科学基金重点资助项目(50236010);国家重点基础规划项目(G2000026410);辽宁省科学技术基金(无编号)

摘　　要：利用电池实验方法考察了直通道流场的通道深度、流场细密化、通道宽度以及分配沟宽度等结构参数对128cm2氢-空PEM电池性能的影响,同时与数学模型的计算结果相比较,二者表现出相同的变化趋势。实验结果表明,在一定范围内,随着流场通道宽度和通道深度的减小、分配沟宽度的增大,电池性能上升;流场细密化有利于电池性能的提高。In this paper, the effects of channel depth and width, channel minimization and distribution groove width of parallel flow-field on 128 cm2 H2-air PEMFC performance were investigated by experiments. At the same time, we have compared with the experiment results and mathematical model results and two kinds of results have the same trends in cell performance. Experiment results show that the cell performance is improved by decreasing channel width, depth and increasing distribution groove in a certain range. Higher channel density is good for improving the cell performance.

关 键 词：PEMFC直通道流场 几何结构 电池性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]