锂离子电池内阻变化对电池温升影响分析  

Effect of internal resistance on temperatre rising of lithium-ion battery

作　　者：张志杰[1] 李茂德[1] 

机构地区：[1]同济大学机械工程学院,上海201804

出　　处：《电源技术》2010年第2期128-130,共3页Chinese Journal of Power Sources

基　　金：上海市自然科学基金项目(08ZR1419900)

摘　　要：对聚合物锰酸锂电池的内阻进行了实验,得出了随温度和容量的变化关系拟合方程。在此基础上对单片动力电池在取定值内阻和变内阻下的放电过程温升特性进行了数值计算。结果表明,内阻对给定条件下的温升有重要影响,取定值内阻的温升计算结果误差较大。The internal resistance of polymer lithium battery was tested and the fitting equation of internal resistance against temperature and capacity change was obtained. Based on the equation, the mathematical model to simulate the situation of the single battery temperature rising at a constant resistance and variable resistance was established. The results show that the resistance has a significant impact on battery temperature rising under the decided conditions. The battery temperature rising will have a larger calculation error at a constant resistance.

关 键 词：锂离子电池 内阻 温升 

分 类 号：TM912.9[电气工程—电力电子与电力传动]