Thermal modelling of Li-ion polymer battery for electric vehicle drive cycles
Thermal modelling of Li-ion polymer battery for electric vehicle drive cycles
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DOI：
10.1016/j.jpowsour.2012.04.015
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发表时间：
2012-09-01
影响因子：
9.2
通讯作者：
Chung, Yongmann M.
中科院分区：
文献类型：
--
作者：
Chacko, Salvio;Chung, Yongmann M.
锂离子 (Li-ion) 聚合物电池随时间变化的热行为已针对电动汽车 (EV) 驾驶循环进行了建模，旨在开发有效的电池热管理系统。全耦合三维瞬态电热模型是基于有限体积法实现的。为了支持数值研究，在气候室中对高能量密度锂离子聚合物软包电池进行了由各种充电和放电速率组成的电负载循环测试，模型预测与实验数据之间存在良好的一致性。该模型预测了高功耗和高环境温度等压力条件下的电池级热行为。在压力条件下观察到温度显着升高，对应于重复的加速和减速，这表明需要有效的电池热管理系统来保持最佳的电池性能并实现电池的完整寿命。 (C) 2012 Elsevier B.V. 保留所有权利。
Time-dependent, thermal behaviour of a lithium-ion (Li-ion) polymer cell has been modelled for electric vehicle (EV) drive cycles with a view to developing an effective battery thermal management system. The fully coupled, three-dimensional transient electro-thermal model has been implemented based on a finite volume method. To support the numerical study, a high energy density Li-ion polymer pouch cell was tested in a climatic chamber for electric load cycles consisting of various charge and discharge rates, and a good agreement was found between the model predictions and the experimental data. The cell-level thermal behaviour under stressful conditions such as high power draw and high ambient temperature was predicted with the model. A significant temperature increase was observed in the stressful condition, corresponding to a repeated acceleration and deceleration, indicating that an effective battery thermal management system would be required to maintain the optimal cell performance and also to achieve a full battery lifesapn. (C) 2012 Elsevier B.V. All rights reserved.