Temperature characterization analysis of LiFePO4/C power battery during charging and discharging

Jin Jing An, Shi Chen*, Kai Yang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

28 引用 (Scopus)

摘要

In order to study the surface temperature change and distribution during charging and discharging and in the simulation working condition of LiFePO 4/C power battery at normal temperature, the surface temperature is tested by placing the battery in the incubator and fixing 10 temperature probes on the battery surface. Results show that the temperature of the upper part is higher, and the temperature at the bottom is the lowest, while around the positive electrode is the highest during charging and discharging. The maximum temperature rising rate is reached at the moment of constant current charging transforming to the constant voltage charging during charging, and at the end moment during discharging. During charging in a certain range and discharging, the relations between the maximum temperature, the average temperature rising rate, and the maximum temperature difference of all the measurement points at the same time and the current are approximately linear, respectively. In the simulation working condition, the moment of the maximum temperature is consistent with the large current discharging instantaneous in each stage.

源语言英语
页(从-至)515-521
页数7
期刊Journal of Thermal Analysis and Calorimetry
99
2
DOI
出版状态已出版 - 2月 2010

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