摘要
为保障新能源电池的安全、高效运行和长循环寿命,需要对电池包进行有效热管理.利用高导热性的热管制备了散热装置来对锂离子电池包进行热管理,并在电池循环充放电条件下,研究3种散热方式的热影响规律.结果表明,热管散热装置能有效降低电池包的温度,同时减小电池包内各个电池间的温差;与自然对流散热条件相对比,在强制对流条件下加装热管散热装置能将电池包内最高温度从78.1℃降低到48.6℃,电池包内外电池间的温差也保持在2.5℃以下.
An effective thermal management for lithium-ion battery pack is required to ensure its security, high efficiency and long cycle life. In this paper, a cooling device using the high thermal conductivity of heat pipe is designed to achieve the thermal management of cylindrical lithium-ion battery pack, and the thermal influence law of three kinds of heat dissipation methods is discussed in the charge-discharge cycle test. It is proved that the cooling device can effectively decrease the temperature of battery pack and reduce the temperature difference of each cell in battery pack. Compared with cooling in natural convection, the temperature of battery pack cooling with heat pipe under the condition of forced convection can be de-creased from 78.1 to 48.6 ,and the temperature difference of each cell in battery pack is also kept under 2.5℃.
作者
冯丽源
周硕
李彦成
汪瑶
孙艳
闫康平
FENG Liyuan;ZHOU Shuo;LI Yancheng;WANG Yao;SUN Yan;YAN Kangping(College of Chemical Engineering, Sichuan University, Chengdu 610065, China;School of Mechanical Engineering, Chengdu University, Chengdu 610106, China)
出处
《成都大学学报（自然科学版）》
2017年第4期410-413,共4页
Journal of Chengdu University（Natural Science Edition）
基金
国家自然科学基金(21576170)资助项目
关键词
锂离子电池
圆柱形电池
热管
热管理
散热
lithium-ion battery
cylindrical battery
heat pipe
thermal management
heat dissipation
