化工进展2016,Vol.35Issue(4):1068-1073,6.DOI:10.16085/j.issn.1000-6613.2016.04.016
翅片式锂电池热管理系统散热性能的实验研究
Experiment on heat dispersion of finned lithium battery thermal management system
摘要
Abstract
Lithium-ion batteries continuously generate heatduring work,So,when used as electric vehicle power supply,the battery pack may be quite hot and the temperature differences among monomers may be very large without effective thermal management measures,which willdeteriorate its performance and lifespan. Generally uses various techniques such as forced air cooling,liquid circulation cooling,phase change material cooling and heat pipe cooling,have been applied in Battery thermal management system(BTMs) but with the shortcomings of complicated structure and high cost. In this work,pure copper fins were proposed for BTMs and experimental research was conducted. By changing the discharge rate and thickness of fins,the thermal characteristics of the battery pack under different working conditions is studied. The results showed that under the condition of natural convection,adding fin could significantly keep the temperature of battery pack from overheating,and improve the temperature distribution inside the battery pack. Thicker fins can meet the temperature requirements of higher discharge rate and greater discharge depth.关键词
锂电池/热管理/翅片/对流/传热/安全Key words
lithium battery/thermal management/fin/convection/heat transfer/safety分类
能源科技引用本文复制引用
高明,张宁,王世学,张静静,靳鹏超..翅片式锂电池热管理系统散热性能的实验研究[J].化工进展,2016,35(4):1068-1073,6.基金项目
科技部国际合作项目(2013DFG60080)。 ()