机电工程技术2024，Vol.53Issue(6)：273-276,4.DOI:10.3969/j.issn.1009-9492.2024.06.063
锂离子模组电池散热影响因素分析
Analysis of the Thermal Performance of Lithium-ion Power Battery
摘要
Abstract
Aiming at the outstanding problem of poor heat dissipation performance of lithium-ion module batteries,the heat dissipation research of lithium-ion module batteries is carried out.A three-dimensional thermal model of the module battery is established and analyzed by numerical simulation.Numerical simulation shows that the battery discharge rate,convective heat transfer coefficient and thermal conductive medium all have an impact on the battery heat dissipation.Battery discharge rate should be 1C times as much as possible,to avoid the high rate of battery discharge caused by the rapid temperature rise.Increasing convective heat transfer coefficient helps to reduce the battery temperature,but at the same time will cause the overall temperature difference of the battery increases,and at the same time forced to increase the convective heat transfer coefficient,but also cause the waste of energy of the external equipment.By comparing the effects of different thicknesses of copper plates,aluminum plates,and thermal conductive pads on battery heat dissipation,it can be concluded that among the three materials with the same thickness,the copper plate with a higher heat transfer coefficient has the best effect in reducing the overall temperature of the battery.When the same material has different thicknesses,increasing the thickness of the thermal conductive material reduces the overall temperature difference of the battery.The analysis of factors affecting battery heat dissipation provides a theoretical basis for the structural design of modular batteries and has certain reference significance.关键词
模组电池/数值仿真/散热性能Key words
module battery/numerical simulation/heat dissipation performance分类
信息技术与安全科学引用本文复制引用
库流辉,胡顺涛,周阳,林旭..锂离子模组电池散热影响因素分析[J].机电工程技术,2024,53(6):273-276,4.基金项目
青海民族大学校级科研项目(23GH13) （23GH13）
