燃料电池封装载荷对传质传热影响的研究进展  

Research progress of the effect of proton exchange membrane fuel cell stack clamping load on mass and heat transfer

作　　者：赵小军 潘凤文 王彦波 王晓阳 李明阳 ZHAO Xiaojun;PAN Fengwen;WANG Yanbo;WANG Xiaoyang;LI Mingyang(Weichai Power Co.,Ltd.,Weifang Shandong 261061,China)

机构地区：[1]潍柴动力股份有限公司,山东潍坊261061

出　　处：《电源技术》2021年第5期686-689,共4页Chinese Journal of Power Sources

基　　金：国家重点研发计划资助项目(2018YFB0106504)。

摘　　要：质子交换膜燃料电池(PEMFC)成堆过程中,需要适当的封装载荷以使电池堆具有高效率、高可靠性和优异的耐久性。在封装载荷作用下,包括气体扩散层(GDL)和质子交换膜(PEM)在内的几乎所有的堆芯构件都会发生一定程度的变形,从而影响电堆内水和反应热量传输以及电堆内部组件间接触电阻的变化。从实验和建模两个方面,讨论了封装载荷作用下,GDL和PEM形变对水热传输的影响机理,总结了封装载荷均匀分布的优化设计方法。研究成果可加深封装载荷对PEMFC性能影响的理解,为设计者和制造商提供参考信息。During the stacking process of proton exchange membrane fuel cell(PEMFC),appropriate packaging load is needed to make the stack have high efficiency,high reliability and excellent durability.Under the clamping load,almost all core components including gas diffusion layer(GDL)and proton exchange membrane(PEM)will undergo a certain degree of deformation,which will affect the water and reaction heat transfer in the stack,as well as the changes of contact resistance between components within the stack.This paper discusses the influence mechanism of GDL and PEM deformation on hydrothermal transmission from the aspects of experiment and modeling,and summarizes the optimal design method of uniform distribution of clamping load.The research results can deepen the understanding of the impact of clamping loading on the performance of PEMFC,and provide reference information for designers and manufacturers.

关 键 词：质子交换膜燃料电池 封装载荷 传质 传热 

分 类 号：TM911.4[电气工程—电力电子与电力传动]