收稿日期: 2014-03-20
修回日期: 2014-05-22
网络出版日期: 2014-08-30
基金资助
国家自然科学基金面上项目（51176183）；教育部“新世纪优秀人才支持计划”（NCET-12-0514）
Simulation on the Temperature of Lithium-Ion Battery during Charge-Discharge Cycling
Received date: 2014-03-20
Revised date: 2014-05-22
Online published: 2014-08-30
孙秋娟 , 王青松 , 平 平 , 赵学娟 . 循环充放电条件下锂离子电池的温度模拟[J]. 新能源进展, 2014 , 2(4) : 315 -321 . DOI: 10.3969/j.issn.2095-560X.2014.04.0012
The heat generation for lithium-ion batteries is composed of the reversible heat caused by the electrochemical reaction and the irreversible heat due to polarization during charge-discharge cycling. The materials of cobalt acid lithium battery begin to decompose once the internal temperature of the battery reached 82oC. A series of uncontrolled chemical reactions are triggered, resulting in releasing a large amount of heat. With the aid of finite element technology, the reversible, irreversible heat and the decomposition heat are both considered in this work to simulate the internal temperature variation of lithium-ion batteries under different cooling conditions and ambient temperatures, which can provide theoretical basis to disclose the thermal runaway mechanism for this kind of battery.
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