电源技术2019，Vol.43Issue(4)：564-567,4.
18650型锂离子动力电池热特性研究
Research on thermal characteristics of 18650 lithium-ion power battery
摘要
Abstract
To research the thermal security of lithium-ion power battery used in electric vehicles, with 3.2 Ah lithium-ion power battery as the research object, a three-dimensional mathematical model was built to analyse the thermal characteristic of lithium-ion power battery in the state of different discharge rates and different ambient temperature by the simulation and experiment temperature on the thermal characteristics of lithium-ion power battery were investigated. The results illustrate that temperature rising curve of the lithium-ion battery is nonlinear, the temperature rise rate increases obviously at the end of discharge; the temperature rising and temperature rising rate increase with the increasing of the charge/discharge rate; their temperature variation trends are basically the same, so the mathematical model can accurately describe the thermal behavior of the lithium-ion battery. The simulation and experimental analysis of thermal characteristics of lithium-ion battery could provide abundant data basis for studying temperature rising of battery pack and design of thermal management system.关键词
电动汽车/锂离子动力电池/数学模型/热特性/热管理Key words
electric vehicles/lithium-ion power battery/mathematical model/thermal characteristics/thermal management分类
信息技术与安全科学引用本文复制引用
冯能莲,马瑞锦,陈龙科..18650型锂离子动力电池热特性研究[J].电源技术,2019,43(4):564-567,4.基金项目
国家自然科学基金(51075010) （51075010）
北京市教育委员会重点项目(KZ200910005007) （KZ200910005007）
