| 电动汽车锂离子电池的生热特性 |
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| 引用本文： | 辛明华,余楚礼,车杜兰. 电动汽车锂离子电池的生热特性[J]. 天津汽车, 2012, 0(7): 26-28,49 |
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| 作者姓名： | 辛明华 余楚礼 车杜兰 |
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| 作者单位： | [1]中国汽车技术研究中心 [2]武汉理工大学 |
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| 摘 要： | 对锂离子电池生热特性的研究是电动汽车动力电池热管理设计的基础。文章以电动汽车用11A·h电池单体为例，进行有限元建模分析，比较了它在不同环境温度下的生热特性。经过试验验证，测试结果与仿真分析相符合，该电池在环境温度为-20～40℃时以1C放电终止，温升为20℃左右。指出由于该电池推荐工作温度为30～55℃，因此使用时电池外部应配有加热系统；当电池放电倍率始终小于1C时，可不配置强制冷却系统。
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| 关 键 词： | 电动汽车 锂离子电池 生热特性 |
Thermal Performance of Lithium-ion Battery in Electric Vehicles |
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| Abstract: | Research on thermal performance of Lithium-ion battery is the foundation of battery pack thermal management of electric vehicles. Taking a kind of Lithium-ion battery with 11A·h rated capacity applied on an electric vehicle, finite element modeling analysis is conducted, and thermal performance at different ambiance temperature is compared. Through experimental verification, simulation analysis is consistent with test results. At the ambiance temperature of-20 -40℃, the battery is stopping discharge by 1 C and temperature rise is above 20℃. It is indicated recommended working temperature of the battery is 30-55 ℃, heating system must be allocated in battery external, when the discharge rate is below 1 C, cooling system can not be allocated. |
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| Keywords: | Electric vehicle Lithium-ion battery Thermal analysis |
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