锂离子动力电池热安全性研究进展  

Progress of thermal safety characteristics of high power lithium-ion batteries

作　　者：欧阳陈志 梁波[1,2] 刘燕平[1] 赖延清[2] 刘业翔[2] 

机构地区：[1]长沙理工大学汽车与机械工程学院,湖南长沙410114 [2]中南大学冶金与环境学院,湖南长沙410083

出　　处：《电源技术》2014年第2期382-385,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金(50803008);中国博士后特别资助项目(201104508);湖南省教育厅优秀青年基金(11B001);湖南省科技计划项目(2011RS4067);可再生能源电力技术湖南省重点实验室开放基金(2011KFJJ006)

摘　　要：锂离子电池因为其优异的性能在各方面得到了大量应用。锂离子动力电池的热稳定性,严重影响电动汽车的安全性和生命周期。放热反应会引起电池内部热聚集,导致热失控引发电池的燃烧或爆炸。对锂离子动力电池的热稳定性进行了分析,介绍了热失控的一般过程,综述了锂离子动力电池热模型的研究进展。重点介绍了改善电池热安全性的方法,包括电池材料、制造工艺和电池热管理等三个方面。Lithium-ion batteries, as a rechargeable and high energy density power source, were widely applied for their advantages. The batteries＇ safety and life cycle were significantly affected by the thermal stability issues of lithium-ion power batteries. The exothermic effects including the heat accumulation inside the cell, leading to thermal runaway and even cell burning and explosion at high cycling rate were arose. The thermal stability analysis and the general process of thermal runaway of lithium-ion power batteries were introduced. The thermal models and electrochemical-thermal models were discussed. The ways of approaching the problems of the thermal stability of lithium-ion power battery including thermally stable anode and cathode materials, electrolyte and its additives, the control of the manufacture process and good thermal management system were listed.

关 键 词：锂离子电池 热稳定性 热模型 电池材料 热管理 

分 类 号：TM912.9[电气工程—电力电子与电力传动]