主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2023, Vol. 42 ›› Issue (2): 181-186.

• • 上一篇    下一篇

基于并联流风冷的锂离子电池温度统计分析

董小平1,2,3，李 健1,2，郭建成1,2   

  1. （1.河北大学 质量技术监督学院，河北 保定 071002； 2.河北省新能源汽车动力系统轻量化技术创新中心（筹），河北 保定 071002; 3.保定市新能源车辆动力工程技术研究中心，河北 保定 071002）
  • 出版日期:2023-02-15 发布日期:2023-02-17
  • 作者简介:作者简介：董小平（1974- ），男，四川广安人，河北大学副教授，博士，主要从事动力电池热管理及安全研究，河北省保定市莲池区七一东路2666号河北大学（七一路校区）C4-507,071002。
  • 基金资助:
    河北省自然科学基金项目（E2018201235）；河北省高等学校科学技术研究项目（QN2019209）；保定市科技计划项目（2074019）；河北大学校长科研基金项目（XZJJ202003）；河北大学2022 年校级大学生创新创业训练计划项目（2022265，2022266）

Statistical analysis of lithium-ion battery temperature based on parallel flow air cooling

Dong Xiaoping1,2,3, Li Jian1,2, Guo Jiancheng1,2   

  1. （1. College of Quality and Technical Supervision, Hebei University, Hebei Baoding 071002, China; 2. Hebei New Energy Vehicle Power System Lightweight Technology Innovation Center（under preparation）, Hebei Baoding 071002, China; 3. Baoding New Energy Vehicle Power Engineering Technology Research Center, Hebei Baoding 071002, China）
  • Online:2023-02-15 Published:2023-02-17

摘要： 为研究锂离子电池运行时产生的热堆积及热量分布不均匀问题，在并联流风冷的基础上，采用ANSYS AIM软件模拟了不同楔形进风口倾斜角度和添加扰流板下电池组的温度。研究了进风口倾斜角度、扰流板倾角度与位置对电池组散热性能的影响以及温度分布。结果表明，随着进风口倾斜角增加，电池组的相对较高温度降低，电池各部分温差也降低，温度分布区间明显缩短，且转向低温。添加扰流板后，电池的相对较高温度明显降低，温差在2.0～3.4 ℃。扰流板设置一定位置后，电池温度点绝大多数集中于27.1～28.1 ℃，其次为26.1～27.0 ℃，最后为28.1～29.0 ℃。在上述情况下，电池温度分布均匀性得到明显改善。

Abstract: In order to study the problem of heat accumulation and uneven heat distribution during operation of lithium-ion batteries, on the basis of parallel flow air cooling, ANSYS AIM software is used to simulate the temperature of the battery pack with different wedge-shaped air inlet inclination angles and adding spoiler. The effects of the inclination angle of the air inlet, the inclination angle and position of the spoiler on the heat dissipation performance of the battery pack and the temperature distribution were studied. The relatively high temperature of the battery decreases with the increase of the inclination angle of the air inlet, the temperature difference of each part of the battery also decreases, the temperature distribution range is significantly shortened, and turns to low temperature. After adding spoiler, the relatively high temperature of the battery is significantly reduced, and the temperature difference is between 2.0~3.4 ℃. After the spoiler is set at a certain position, most of the battery temperature points are concentrated between 27.1~28.0 ℃, followed by 26.1~27.0 ℃, and finally 28.1~29.0 ℃. Under the above conditions, the uniformity of battery temperature distribution is significantly improved.

Key words: lithium-ion power battery, parallel flow air cooling, spoiler, temperature