不同流场结构对质子交换膜燃料电池性能的影响  

Effects of Different Flow Field Structures on Proton Exchange Membrane Fuel Cell Performance

作　　者：李兵[1] 邓林 LI Bing;DENG Lin(School of Automotive and Electromechanical Engineering,Lu'an Vocational Technical College,Lu'an,Anhui 237158,China)

机构地区：[1]六安职业技术学院汽车与机电工程学院,安徽六安237158

出　　处：《九江学院学报（自然科学版）》2023年第1期31-35,70,共6页Journal of Jiujiang University：Natural Science Edition

基　　金：2021年安徽省自然科学研究项目(编号KJ2021A135)的研究成果之一。

摘　　要：质子交换膜燃料电池是氢气和氧气直接通过电化学反应产生电能和水的能源装置,具有清洁无污染、热效率高、高功率等优点。金属泡沫拥有特定的通孔形态,逐渐变成PEMFC提升水热管理、气体反应物运输和提高性能的电化学反应气体分布器。文章使用传统蛇形流道和不同孔径金属泡沫作为气体分布器,并在不同的电池工作温度和加湿温度条件下对电池进行性能测试。实验结果表明,采用合适通孔孔径金属泡沫流场的电池性能在一定条件下优于传统蛇形流场,在加湿温度50℃和电池工作温度30℃时,孔径为580μm金属泡沫流场的电池性能表现最佳,较蛇形流场最大电流密度提升25.1%,最大功率密度提升21.2%。Proton Exchange Membrane Fuel Cell(PEMFC)was an energy device that generates electricity and water directly from hydrogen and oxygen through electrochemical reaction.It had the advantages of clean,pollution-free,high thermal efficiency and high power.Metal foams had a specific through-hole shape that gradually became a gas distributor for electrochemical reactions for PEMFC to improve hydrothermal management,gas reactant transport and performance.In this paper,a traditional serpentine flow channel and metal foam with different pore sizes were used as gas distributors,and the battery performance was tested under different operating temperatures and humidification temperatures.Experimental results showed that the appropriate hole diameter metal foam flow battery performance under certain conditions was superior to the traditional serpentine flow field.working in humidification temperature 50℃and battery temperature 30℃,the flow field in metal foam with a 580mm operture got a 25.1%increase in maximum curret density and a 21.2%,hcrease in maxi mum power density than the traditional serpentine flow field.

关 键 词：质子交换膜燃料电池 金属泡沫 流场 电池性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]