Analysis of the internal temperature of the cells in a battery pack during SOC balancing

3rd International Conference on Mechanical, Automotive and Aerospace Engineering 2016

机械制造;无线电电子学;航空航天工程

Mizanur, R.^1 ; Rashid, M.M.^1 ; Rahman, A.^2 ; Zahirul Alam, A.H.M.^3 ; Ihsan, S.^2 ; Mollik, M.S.^1

Department of Mechatronics Eng., International Islamic University Malaysia, Malaysia^1

Department of Mechanical Eng., International Islamic University Malaysia, Malaysia^2

Department of Electrical and Computer Eng., International Islamic University Malaysia, Malaysia^3

关键词: Balancing currents;    Balancing system;    Charge balancing;    Discharging current;    Effects of temperature;    Internal temperature;    Quasi-resonant converter;    Transferring process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/184/1/012014/pdf
DOI  :  10.1088/1757-899X/184/1/012014

学科分类：航空航天科学

来源: IOP

【 摘 要 】

Lithium-ion batteries are more suitable for the application of electric vehicle due to high energy and power density compared to other rechargeable batteries. However, the battery pack temperature has a great impact on the overall performance, cycle life, normal charging-discharging behaviour and even safety. During rapid charge transferring process, the internal temperature may exceed its allowable limit (460C). In this paper, an analysis of internal temperature during charge balancing and discharging conditions is presented. Specific interest is paid to the effects of temperature on the different rate of ambient temperature and discharging current. Matlab/Simulink Li-ion battery model and quasi-resonant converter base balancing system are used to study the temperature effect. Rising internal temperature depends on the rate of balancing current and ambient temperature found in the simulation results.