动力电池系统内模组汇流排可靠性浅析  

Reliability analysis of the module busbars of power battery systems

作　　者：赵晓军 王颖超 陈猛 杨鹏 安占旺 刘建利 吴迪 ZHAO Xiaojun;WANG Yingchao;CHEN Meng;YANG Peng;AN Zhanwang;LIU Jianli;WU Di(Tianjin Lishen New Energy Technology Co.,ltd.,Tianjin 300384,China)

机构地区：[1]天津力神新能源科技有限公司,天津300384

出　　处：《储能科学与技术》2024年第7期2450-2458,共9页Energy Storage Science and Technology

基　　金：国家电网公司2024年总部科技项目(52060024001V)。

摘　　要：近年来,随着全球环保意识的不断提升,新能源汽车逐渐成为全球汽车产业发展的重要方向,动力电池作为新能源汽车的核心设备,其安全性成为电动汽车发展的关键。行业内针对动力电池系统的热特性开展了大量研究,这些研究大多数只考虑整个动力电池包或者电池模组层面的研究。然而,在动力电池Pack结构设计中,汇流排作为连接的关键零件,其热性能也至关重要。本文以方形动力电池系统内模组研发为基础,论述了电池系统内汇流排的结构设计、强度分析、散热分析方法,同时浅析了过程参数可靠性设置以及产品使用可靠性的验证。希望文中论述的基本过程和基本方法能为电池系统的研发提供一些借鉴。With the continuous implementation of several global environmental awareness initiatives in recent years,new energy vehicles have gradually emerged as crucial areas of development within the global automobile industry.Furthermore,ensuring the safe operations of power batteries,which represent the core components of new energy vehicles,has become critical for the development of electric vehicles.Accordingly,numerous studies have investigated the thermal characteristics of power battery systems,primarily focusing on the power battery pack or battery module.However,when designing power battery pack structures,ensuring the thermal performance of busbars,which are critical connecting components,is also crucial.Motivated by this,the current study focuses on the development of modules within square power battery systems,considering the structural designs,strength analyses,and heat dissipation evaluations of busbars in such battery systems.Furthermore,it examines the reliability settings of process parameters and verifications of product reliability.Overall,the findings of the study are anticipated to guide the development of battery systems.

关 键 词：汇流排 焊接 温升 可靠性 电池系统 

分 类 号：TM911[电气工程—电力电子与电力传动]