圆柱形锂离子电池模组微通道液冷热模型
CIESC Journal, 2017, 68(8): 3232-3241 ·3232
· 化工学报 2017年
第68卷 第8期 | https://www.wendangku.net/doc/3a948732.html, DOI ：10.11949/j.issn.0438-1157.20170278
圆柱形锂离子电池模组微通道液冷热模型
赵春荣1,2，曹文炅1，董缇1,2，蒋方明1
（1广东省新能源和可再生能源研究开发与应用重点实验室，中国科学院可再生能源重点实验室，中国科学院广州能源
研究所先进能源系统研究室，广东 广州 510640；2中国科学院大学，北京 100049）
摘要：针对电动汽车电堆的热管理系统，建立了包含71节18650型锂离子电池的电池模组的微通道液冷热模型。该模型集总处理单电池热过程、电池生热基于实测结果，模型还特别考虑了电池间导热。基于该模型，模拟研究
了放电倍率、冷却液入口流速、电池间接触面积以及电池与水冷管外壁接触面积对电池模组热行为的影响。模拟
结果证实了该微通道液冷方案对动力电池模组热管理的有效性，并且发现：放电倍率的增加会使电池模组内单电
池温度增加、模组内温度一致性变差；增大冷却液流量可以显著降低电池模组的温度，并改善其温度一致性；增
大电池间接触面积可略微提升电池模组温度一致性，但对控制其最高温度作用有限；增大电池与液冷管外壁接触
面积可显著降低电池模组内电池的最高温度，但会使其温度一致性变差。
关键词：锂离子电池；热模型；微通道；计算机模拟；传热
中图分类号：TM 912.9 文献标志码：A 文章编号：0438—1157（2017）08—3232—10
Thermal modeling of cylindrical lithium-ion battery module
with micro-channel liquid cooling
ZHAO Chunrong 1,2, CAO Wenjiong 1, DONG Ti 1,2，JIANG Fangming 1
(1Laboratory of Advanced Energy Systems , Guangdong Key Laboratory of New and Renewable Energy Research and Development ,
CAS Key Laboratory of Renewable Energy , Guangzhou Institute of Energy Conversion , Chinese Academy of Sciences ,
Guangzhou 510640, Guangdong , China ; 2University of Chinese Academy of Sciences , Beijing 100049, China )
Abstract : Considering the micro-channel liquid cooling thermal management system (TMS) of EV battery packs, a thermal model was established for a battery module consisting of 71 sections 18650 lithium-ion batteries. In this model, the thermal-lumped treatment was implemented for each single battery and the heat generation of a single battery was determined based on experimental measurements. In particular, heat conduction between neighboring batteries was considered. The battery module’s thermal behavior, and investigated effects of the discharge C-rate, the liquid flow rate, the heat exchange area between neighboring batteries, and the interfacing area of the battery and the shell of micro-channel were numerically studied relying on the developed model. The simulated results corroborated the effectiveness of the micro-channel cooling system. It was found that: 1) increasing the discharge C-rate led to higher temperature and worsened the temperature uniformity in the battery module; 2) increasing the liquid flow rate can significantly lower the maximum temperature and improve the temperature uniformity in the
2017-03-22收到初稿，2017-04-17收到修改稿。
联系人：蒋方明。第一作者：赵春荣（1990—），男，硕士研究生。
基金项目：广东省自然科学基金-重大基础研究培育
（2015A030308019）；广东省自然科学基金项目（2016A030313172）；
广东省新能源和可再生能源研究开发与应用重点实验室基金项目
（Y607jg1001）；中国科学院“百人计划”项目（FJ ）。 Received date : 2017-03-22. Corresponding author : Prof. JIANG Fangming, jiangfm@https://www.wendangku.net/doc/3a948732.html, Foundation item : supported by the Key Scientific Development Project of Guangdong Province (2015A030308019), the Natural Science Foundation of Guangdong Province (2016A030313172), the Guangdong Key Laboratory of New and Renewable Energy Research and Development Fund
(Y607jg1001) and the CAS “100 Talents” Program (FJ). 万方数据