Open AccessSimulation and Experimental Verification of Temperature Field for Square Lithium-ion Power Battery
Author(s) -
Biao Jin,
Qiang Fei,
Yanning Wang,
Yingshun Wang,
Wuyuan Zou
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2166/1/012049
Subject(s) - battery (electricity) , internal resistance , lithium ion battery , materials science , nuclear engineering , ion , lithium (medication) , power (physics) , temperature control , thermodynamics , automotive engineering , mechanics , chemistry , engineering , physics , medicine , organic chemistry , endocrinology
Lithium-ion power battery will produce a large amount of heat during working process, which will lead to its temperature increase, and then has an important impact on the its performance and safety, enhance, in order to investigate temperature field change in the discharge process, its internal resistance experiment and temperature rise experiment under discharging rates were carried out to obtain the battery time-varying internal resistance and entropy heat coefficient. Based on heat production mechanism of lithium-ion battery, its temperature simulation under different discharging rates was carried out, and compared with the experiment. The results show that the simulation values of temperature change are in good agreement with the experiment, and the battery model can well simulate the temperature change of it, which has important guidance for the analysis of its temperature rise and the control of its thermal management process.