期刊
JOURNAL OF POWER SOURCES
卷 213, 期 -, 页码 296-303出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2012.04.015
关键词
Battery thermal management; Lithium-ion polymer battery; Electro-thermal model; Electric vehicle drive cycles; Finite volume method
资金
- Advantage West Midlands (AWM), UK
- European Regional Development Fund (ERDF)
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.
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