电源技术2018，Vol.42Issue(2)：188-190,261,4.
动力锂离子电池放电热模拟分析
Analysis of discharging heating simulation of lithium-ion power battery
安治国 1李升东 1张栋省 1王凡宇 2孙冠龙1
作者信息
- 1. 重庆交通大学机电与车辆工程学院,重庆400074
- 2. 广东精进能源有限公司研究院,广东佛山528305
- 折叠
摘要
Abstract
Thermal safety problem in the discharge process of lithium-ion battery is a key problem that must be solved for electric vehicles.The relationship between internal resistance of battery and SOC was built,the positive and negative pole resistance were tested through the experiment,and the heat conduction coefficients along different directions and the heat generation rate in discharge process were calculated.The battery three-dimensional thermal model was established and heat distribution data were acquired.Thermal behavior of the battery under the condition of discharging at 1 C for 1 h was analyzed based on the battery heat distribution data,and the accuracy of the simulation results was verified.The influence of heat transfer coefficient on the internal heat of the battery was simulated.The results show that improving the heat transfer coefficient of the cell surface can improve the heat dissipation capability of the battery.关键词
动力锂离子电池/三维模拟/热分布Key words
lithium-ion power battery/three-dimensional simulation/heat distribution分类
信息技术与安全科学引用本文复制引用
安治国,李升东,张栋省,王凡宇,孙冠龙..动力锂离子电池放电热模拟分析[J].电源技术,2018,42(2):188-190,261,4.
