重型商用车燃料电池堆耐久性能与衰减机理研究  

Study on durability and attenuation mechanism of fuel cell stack for heavy commercial vehicle

作　　者：乔兴年 王彦波 时保帆 唐亮 杨国华 QIAO Xingnian;WANG Yanbo;SHI Baofan;TANG Liang;YANG Guohua(NCTIFC(Shandong),Weifang Shandong 261061,China;National Center of Technology Innovation for Fuel Cell,Weifang Shandong 261061,China)

机构地区：[1]山东国创燃料电池技术创新中心公司,山东潍坊261061 [2]国家燃料电池技术创新中心,山东潍坊261061

出　　处：《电源技术》2023年第11期1477-1480,共4页Chinese Journal of Power Sources

基　　金：国家重点研发计划资助项目(2021YFB4001805)。

摘　　要：基于C-WTVC改进工况对某60 kW重型商用车燃料电池堆进行动态车载工况下耐久性循环测试。对1036 h耐久后的电堆进行了拆解分析。通过表征测试发现,阳极电化学活性面积最大下降16%,阴极电化学活性面积最大下降40%,且阴极催化层的厚度变薄,颗粒出现不同程度的长大。结果表明,在车载动态工况下,由于阴极铂颗粒的长大,加速了Pt颗粒的团聚以及流失,从而导致电堆性能衰减,影响电堆的使用寿命。Based on the improved condition of C-WTVC,the durability cycle test of a 60 kW fuel cell stack for heavy commercial vehicle under dynamic vehicle condition was carried out.The stack after 1036 h durability was disassembled and analyzed.Through the characterization test,it is found that the maximum electrochemical active area of the anode decreases by 16%,the maximum electrochemical active area of the cathode decreases by 40%,and the thickness of the cathode catalytic layer becomes thinner,and the particles grows up to different degrees.The results show that under vehicle dynamic conditions,the agglomeration and loss of Pt particles are accelerated due to the growth of cathode platinum particles,which leads to the degradation of stack performance and affects the service life of the stack.

关 键 词：燃料电池堆 耐久性能 动态工况 

分 类 号：TM911.4[电气工程—电力电子与电力传动]