Discharge and Thermal Distribution Characteristics of Electric Vehicle Battery Pack in Closed Circuit System

IF 1 Q4 ENGINEERING, MECHANICAL
Dwi Handoko Arthanto, B. Nuryadin, Fitrianto, K. P. Sumarah, Muhammad Penta Helios, H. Sutriyanto, A. Maswan
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Abstract

This paper presents an experimental study of the depth of discharge (DOD) and temperature distribution characteristics at different locations of the lithium-ion battery (LIB) pack in the closed circuit system. Three different discharge power setups i.e., 600 W, 800 W, and 1000 W are prepared for investigating the depth of discharge and temperature characteristics of commercial LIB. Voltage measurement was implemented to achieve the DOD curve, while thermocouple measurement was used to identify real-time temperature at four different locations of the LIB. As a result, internal resistance and discharging time tend to be increased, while the voltage and current decline linearly from 0% to 80% of LIB capacity. Discharge power greatly affected the four variables when the process continued to the 10% cut-off voltage. Furthermore, the heat generation of the LIB caused a rise in temperature on its surface. The highest temperature was identified on the LIB cell surface followed by an air gap, internal surface casing, and external surface casing temperature. Among all locations, the real-time temperature on the LIB surface operated close to the upper limit of optimum temperature. Due to that reason, increasing of discharge power should be maintained to extend battery cycle life as well as to prevent battery failure. The high-temperature difference between the LIB surface and air gap during the discharging process indicated that there is required heat transfer enhancement.
闭路系统中电动汽车电池组的放电和热分布特性
本文对闭路系统中锂离子电池组不同位置的放电深度(DOD)和温度分布特性进行了实验研究。为研究商用锂离子电池的放电深度和温度特性,准备了三种不同的放电功率设置,即 600 W、800 W 和 1000 W。电压测量用于绘制 DOD 曲线,热电偶测量用于识别锂电池四个不同位置的实时温度。结果显示,内阻和放电时间趋于增加,而电压和电流则从 LIB 容量的 0% 到 80% 线性下降。当放电过程持续到 10%的截止电压时,放电功率会对四个变量产生很大影响。此外,锂电池的发热导致其表面温度升高。锂电池表面温度最高,其次是气隙、内部表面外壳和外部表面外壳温度。在所有位置中,锂电池表面的实时温度接近最佳温度的上限。因此,应保持放电功率的增加,以延长电池的循环寿命并防止电池失效。放电过程中锂电池表面与气隙之间的高温差表明需要加强热传导。
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来源期刊
CiteScore
2.40
自引率
10.00%
发文量
43
审稿时长
20 weeks
期刊介绍: The IJAME provides the forum for high-quality research communications and addresses all aspects of original experimental information based on theory and their applications. This journal welcomes all contributions from those who wish to report on new developments in automotive and mechanical engineering fields within the following scopes. -Engine/Emission Technology Automobile Body and Safety- Vehicle Dynamics- Automotive Electronics- Alternative Energy- Energy Conversion- Fuels and Lubricants - Combustion and Reacting Flows- New and Renewable Energy Technologies- Automotive Electrical Systems- Automotive Materials- Automotive Transmission- Automotive Pollution and Control- Vehicle Maintenance- Intelligent Vehicle/Transportation Systems- Fuel Cell, Hybrid, Electrical Vehicle and Other Fields of Automotive Engineering- Engineering Management /TQM- Heat and Mass Transfer- Fluid and Thermal Engineering- CAE/FEA/CAD/CFD- Engineering Mechanics- Modeling and Simulation- Metallurgy/ Materials Engineering- Applied Mechanics- Thermodynamics- Agricultural Machinery and Equipment- Mechatronics- Automatic Control- Multidisciplinary design and optimization - Fluid Mechanics and Dynamics- Thermal-Fluids Machinery- Experimental and Computational Mechanics - Measurement and Instrumentation- HVAC- Manufacturing Systems- Materials Processing- Noise and Vibration- Composite and Polymer Materials- Biomechanical Engineering- Fatigue and Fracture Mechanics- Machine Components design- Gas Turbine- Power Plant Engineering- Artificial Intelligent/Neural Network- Robotic Systems- Solar Energy- Powder Metallurgy and Metal Ceramics- Discrete Systems- Non-linear Analysis- Structural Analysis- Tribology- Engineering Materials- Mechanical Systems and Technology- Pneumatic and Hydraulic Systems - Failure Analysis- Any other related topics.
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