重庆理工大学学报（自然科学版）2018，Vol.32Issue(6)：1-7,7.DOI:10.3969/j.issn.1674-8425(z).2018.06.001
内阻取值方式对锂电池热模型精度的影响
Influence of Different Internal Resistance Methods on the Accuracy of Thermal Model of LIBs
摘要
Abstract
The internal resistance for the thermal model of the single ternary lithium ion batteries (LIBs) was investigated by constant internal resistance method and dynamic internal resistance method that varies with temperature and current rate.An three-dimensional thermal model was developed to study the influence of different internal resistance methods on the accuracy of the thermal model of lithium ion battery.And the transient thermal module in Ansys workbench was used to simulate the temperature rises of the battery at 25 ℃at different discharge rate.The comparison of the simulation and the test results shows that the curves using dynamic internal resistance have far higher accuracy compared to the ones using constant internal resistance.The maximum deviations in the discharge process at 1C,2C and 3C were 0.43,0.52,0.97 ℃,and the average ones were 0.20, 0.15 ,0.49 ℃.关键词
锂离子电池/热模型/内阻Key words
lithium-ion battery/thermal model/internal resistance分类
信息技术与安全科学引用本文复制引用
陈龙,李海君,杨桃,栗欢欢..内阻取值方式对锂电池热模型精度的影响[J].重庆理工大学学报（自然科学版）,2018,32(6):1-7,7.基金项目
国家自然科学基金资助项目(21501071 ) （21501071 ）
江苏省六大人才高峰项目(2016-XNYQC-003,2015-XNYQC-008) （2016-XNYQC-003,2015-XNYQC-008）
江苏省科技成果转化专项资金资助项目(BA2016162) （BA2016162）
江苏省科技支撑计划重点项目(BE2014008, BE2014008-2) （BE2014008, BE2014008-2）
国家科技支撑计划资助项目(2015BAG07B00 ) （2015BAG07B00 ）
镇江市重点研发计划资助项目(GY2015044) （GY2015044）
