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汽车安全与节能学报 ›› 2011, Vol. 2 ›› Issue (2): 181-184.DOI: 10.3969/j.issn.1674-8484.2011.02.012

• • 上一篇    

锂电池热管理中空气冷却效果的实验与模拟

张江云, 张国庆, 张磊, 饶中浩   

  1. 广东工业大学 材料与能源学院,广州 510006)
  • 收稿日期:2010-12-29 出版日期:2011-07-11 发布日期:2011-07-11
  • 通讯作者: 张国庆/ ZHANG Guoqing,教授。E-mail: pdzgq008@126.com
  • 作者简介:张江云/ ZHANG Jiangyun(1986-) ,女(汉),河南,硕士。E-mail: roseyyun@163.com
  • 基金资助:

    广东省和教育部合作研究项目/ Research Cooperation Project of Guangdong Province and the Ministry of    Education (2008B090500013)

Simulation and Experiment on Air-Cooled Thermal Energy Management of Lithium-Ion Power Batteries

ZHANG Jiangyun, ZHANG Guoqing*, ZHANG Lei, RAO Zhonghao   

  1. Faculty of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2010-12-29 Online:2011-07-11 Published:2011-07-11
  • Contact: 张国庆/ ZHANG Guoqing,教授。E-mail: pdzgq008@126.com
  • About author:张江云/ ZHANG Jiangyun(1986-) ,女(汉),河南,硕士。E-mail: roseyyun@163.com
  • Supported by:

    广东省和教育部合作研究项目/ Research Cooperation Project of Guangdong Province and the Ministry of    Education (2008B090500013)

摘要: 把空冷方法用于商业磷酸铁锂电池以分析强化传热效果。对商用磷酸铁锂电池进行15~35?A的放电测试,并根据实验数据对单一电池的温度分布进行了数值模拟。分析和模拟了空气横掠2个和3个电池情况下的冷却效果。实验和模拟的结果表明:在0~30?A电流放电的情况下,空气冷却对电池热管理具有积极作用。在放电电流小于30?A 的情况下时,电池的最大温度低于50?℃,但是电池间的温差仍然高于5?℃。在放电电流大于30?A 的情况,仅仅通过空气冷却不能使电池和电池组内温度均匀分布,即不能满足电池散热的需求。

关键词: 动力电池, 锂电池, 空气冷却, 热管理

Abstract:  The air-cooled methods were used for cooling commercial LiFePO4 batteries to illustrate the effect of heat transfer enhancement. The commercial LiFePO4 batteries were tested at 15-35 A. The temperature distribution in a single battery was numerical ly simulated according to the experiment al data. Air flow across two and three batteries was simulated to illustrate the air-cooled effect. Experiment al and simulation results show that air-coola has a positive significance for the battery thermal management at discharging currents of 0-30 A. For discharging currents less than 30 A, the peak temperature in batteries is less than 50 ℃, while the temperature difference between batteries is still more than 5 ℃. When the discharging current is higher than 30 A, air-cooling for batteries and battery packs can not guarantee evenly temperature distribution, not being able to meet the regui re ment of batteriy heat dissipation.

Key words: power batteries, lithium-ion batteries, air-cooled, thermal management

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