Advances in New and Renewable Energy >
Experimental Investigation on Thermal Management of Cylindrical Lithium-Ion Battery
Received date: 2016-06-14
Revised date: 2016-06-28
Online published: 2016-08-30
It is necessary to implement effective thermal management strategies to keep the Li-ion batteries work at a desirable temperature or within a temperature range, and thus to guarantee its high efficiency, reliable safety and long lifetime. In this paper, a prismatic metal shell was designed for the cylindrical Li-ion batteries to enhance the heat dissipation and facilitate the heat exchange between neighboring batteries. Experiments were carried out to compare the temperature rise of a single battery or a small group of parallel-connected batteries with or without metal shells assembled under natural or forced air convective cooling conditions at various discharge rates. It was found that heat dissipation of the shelled battery (or small group) was improved greatly. In addition, batteries in a small parallel-connected group were designed to discharge at different rates to record the temperature variation. The result showed that the maximum temperature difference between shelled single cells could be reduced by more than 10oC under natural convection cooling condition.
Key words： lithium-ion battery; thermal management; metal shell; heat dissipation
LI Zhi-bin, CEN Ji-wen, PENG Peng, JIANG Fang-ming . Experimental Investigation on Thermal Management of Cylindrical Lithium-Ion Battery[J]. Advances in New and Renewable Energy, 2016 , 4(4) : 305 -311 . DOI: 10.3969/j.issn.2095-560X.2016.04.007
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