广东工业大学学报 ›› 2020, Vol. 37 ›› Issue (01): 15-22.doi: 10.12052/gdutxb.190096

• 综合研究 • 上一篇    下一篇

相变材料/导热翅片复合热管理系统应用于三元体系锂离子动力电池模组实验研究

张江云, 张国庆, 陈炫庄, 甄志诚   

  1. 广东工业大学 材料与能源学院, 广东 广州 510006
  • 收稿日期:2019-07-11 出版日期:2020-01-25 发布日期:2019-12-10
  • 通信作者: 张国庆(1963-),男,教授,博士生导师,主要研究方向为新能源及节能环保,E-mail:pdzgq008@126.com E-mail:pdzgq008@126.com
  • 作者简介:张江云(1986-),女,博士,主要研究方向为动力电池热管理系统设计
  • 基金资助:
    国家自然科学基金资助项目（21875046）

An Experimental Study of Thermal Management System Based on Phase Change Materials Coupled with Low Fins for Ternary Lithium-ion Power Battery Module

Zhang Jiang-yun, Zhang Guo-qing, Chen Xuan-zhuang, Zhen Zhi-cheng   

  1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2019-07-11 Online:2020-01-25 Published:2019-12-10

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摘要： 以三元动力电池模组为研究对象，通过研究自然对流、相变材料（Phase Change Materials，PCM）、相变材料/导热翅片3种不同散热技术，分析3种不同热管理系统（Battery Thermal Management System，BTMS）在室温（25℃）和高温（45℃）工况下不同恒定倍率放电及充放电循环过程中的温度变化规律、产热速率及温升速率，测试整个电化学反应进程中的最大温度及最大温差技术指标，深入研究不同散热介质对于电池组安全性能的影响机理。结果表明，无论室温/高温环境条件恒定倍率放电和大电流充放电循环工况，相变材料/导热翅片电池组通过对电池组侧面和正负极处进行强化传热，具有明显有效的降温和均衡温度的能力，可以实现电池组最高温度的快速降低，并维持电池模组最高温差在5℃以内，满足动力电池模组的散热需求。

关键词: 三元动力电池模组, 相变材料, 导热翅片, 热管理, 均温

Abstract: For evaluating the heat dissipation properties of different battery thermal management systems (BTMS), three cooling technologies containing natural convection, phase change materials (PCM) and PCM/low fins were applied in the ternary power battery module. Furthermore, relative experiments at different discharge rates and charge-discharge cycles under room/high temperature (25℃/45℃) were carried out to compare the temperature change principles, heat generation rate and temperature increasing gradient. Ultimately, peak temperature and the maximum temperature difference during the overall discharge process were deeply assessed to investigate the influence of diverse heat dissipation medium on operation safety. Testing results indicate that no matter under high discharge rate or large current charge-discharge cycle conditions under room and higher temperature environment, the battery module adopting PCM/heat-conducting fins cooling method through the heat dissipation of negative, positive locations and surrounding surfaces area, exhibits an outstanding ability to cool down as soon as possible and stretch the temperature, accompanying with the peak temperature uniformity within 5℃, and further meeting the temperature consistency requirements of the power battery modules.

Key words: ternary power battery module, phase change material, heat conductive fins, thermal management system, balancing the temperature

中图分类号: 

  • TK112
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