期刊
APPLIED THERMAL ENGINEERING
卷 134, 期 -, 页码 163-170出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2018.02.011
关键词
Lithium ion battery pack; Battery thermal management; Heat transfer enhancement; Composite phase change material
资金
- Fundamental Research Funds for the Central Universities [2017XKZD05]
The performance and life span of the power battery are limited by its operating temperature, hence the battery thermal management (BTM) is a key technology for electric vehicle. In this study, a novel BTM system based on composite phase change materials (C-PCM) with aluminum boxes is developed. The temperature control performance of the system is tested at different discharge rates (1C, 2C) at different ambient temperature (0 degrees C, 10 degrees C, 20 degrees C and 30 degrees C). The results show that the C-PCM can significantly reduce the average temperature and improve the temperature uniformity of the lithium ion battery pack. Furthermore, the performance of the C-PCM for the thermal control starts to deteriorate after completely melting, therefore an accurate dosage estimation of the C-PCM is a key problem for its application.
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