Internal Resistance Computation of a Cylindrical LCO Battery for Heat Generation Model

9th Thai Society of Mechanical Engineers, International Conference on Mechanical Engineering

Kowitkulkrai, T.^1 ; Kaewpradap, A.^1 ; Hirai, S.^2 ; Lailuck, V.^3 ; Rompho, S.^3 ; Masomtob, M.^3

Department of Mechanical Engineering, King Mongkut's University of Technology, Thonburi Bangkok

10140, Thailand^1

Department of Mechanical Engineering, Tokyo Institute of Technology, Tokyo, Japan^2

Materials for Energy Research Unit, National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani

12120, Thailand^3

关键词: Battery performance;    Battery voltages;    Current discharge;    Current pulse;    Discharge rates;    Internal resistance;    Lithium cobalt oxides;    Temperature profiles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/501/1/012057/pdf
DOI  :  10.1088/1757-899X/501/1/012057

来源: IOP

【 摘 要 】

The internal resistance is one of the most important parameters which directly relate to battery performance in terms of output power and heat generation. This research presents the internal resistance of the battery that is studied with using battery voltage behaviour. Lithium Cobalt Oxide (LiCoO2, LCO) battery is applied for the experiment. The voltage drop during the current discharge is calculated to obtain internal resistance by the current pulse technique (CPT). Three different terms of internal resistance are compared by the voltage drop characteristic. As the result, comparison of temperature profile between experiment and simulation was obtained by current pulse technique with discharge rate variations.