可再生能源2017,Vol.35Issue(9):1395-1403,9.
基于热管技术的锂电池箱热管理系统设计与实验验证
Design and experimental verification of thermal management systems for power battery based on heat pipe technology
摘要
Abstract
Thermal management of power battery not only affects system efficiency, charging and discharging capability, but also relates to system safety and reliability. Especially, "thermal runaway" is more harmful.. Therefore, a heat management system based on the combination of heat pipe, fin and heat collector plate is pro posed for high-power power battery box. In addition, heating device, low-power-consumption electric fan and intelligent control algorithm are also employed. The system has been tested with finite element simulation and charge-discharge experiment to prove its feasibility. The experimental results of Lithium iron phosphate battery show that, for 1C highly intensive charge-discharge process, the temperature rise is controlled within 15℃while the temperature difference can be controlled within 2℃with the electric fan. At the same time, the battery temperature can still be lowered to a safe temperature when a serious fault occurs. Moreover, the preheating is realized by adopting the preheating plate to realize the cold starting function of the battery pack. Thus, the developed system can effectively solve the thermal management problem of the batteries under overheating and supercooling conditions.关键词
动力电池/热失控/冷启动/热管理/热管技术Key words
power battery/thermal runaway/cold start/thermal management/heat pipe technology分类
信息技术与安全科学引用本文复制引用
周海阔,杨涛,李平,何艺萌,柴娜,戴朝华..基于热管技术的锂电池箱热管理系统设计与实验验证[J].可再生能源,2017,35(9):1395-1403,9.基金项目
国家重点研发计划项目(2017YFB1201004). (2017YFB1201004)