锂离子电池典型温度与倍率放电特性分析  

Analysis of typical temperature and rate discharge characteristics of Li-ion batteries

作　　者：孙智鹏 陈立铎 徐梓荐 魏墨晗 樊彬 SUN Zhi-peng;CHEN Li-duo;XU Zi-jian;WEI Mo-han;FAN Bin(Tianjin Key Laboratory of Evaluation Technology for Electric Vehicles,China Automotive Technology and Research Center Co.,Ltd.,CATARC Aotomotive Test Center(Tianjin)Co.,Ltd.,Tianjin 300300,China;Tianjin EV Powertrain Technology Co.,Ltd.,Tianjin 300380,China)

机构地区：[1]中汽研汽车检验中心(天津)有限公司中国汽车技术研究中心有限公司天津市电动汽车评价技术企业重点实验室,天津300300 [2]天津易鼎丰动力科技有限公司,天津300380

出　　处：《电源技术》2020年第8期1090-1092,1222,共4页Chinese Journal of Power Sources

基　　金：国家重点研发计划项目(2018YFC1902201)。

摘　　要：以三元体系锂离子电池单体为研究对象,将温度和放电倍率作为考察因素,电池电压降和电池温升作为分析特性,通过控制变量法选取典型工况1 C放电倍率及25℃环境温度,在此基础上探究温度以及放电倍率与电池电压降和电池温升之间的关系,简要探讨了不同温度下和不同倍率下放电对锂离子电池特性的影响,论述了电池温度与放电倍率在不同区域影响的显著性,同时也指出锂电池高倍率放电的危险性。By taking the ternary system lithium ion battery monomer as the research object,the voltage drop and temperature rise were used as the analysis characteristics with the temperature and the discharge rate as the factors.By controlling the variable factors,the typical working condition of 1 C discharge rate and 25℃ambient temperature was selected,and the relationships between the voltage drop and the temperature rise with temperature and discharge rate was analyzed.The effect of different temperatures and discharge rates on the characteristics of Li-ion batteries was analyzed.The influence significance of the battery temperature and discharge rate in different regions was discussed.The risk of high-rate discharge was pointed out.

关 键 词：锂离子电池 倍率特性 温度特性 放电特性 

分 类 号：TM912[电气工程—电力电子与电力传动]