摘要
针对中国大学生无人驾驶方程式赛车动力锂电池散热效率较低的问题,提出风冷与相变材料结合的复合冷却技术。基于一维生热模型与三维传热模型,研究锂电池模组在高倍率放电下的产热特性,采用ANSYS风冷下的电池温度分布,对铜排与极柱连接部分进行相变材料冷却,同时在模组间放置散热隔板进行相变材料冷却,进一步探究单体电池的最大温度分布。结果表明,单体电池最大温度降低到29℃,之间最大温差为2℃,电池散热效果得到优化。
To solve the issue of low heat dissipation efficiency in the lithium power batteries for Formu-la Student Autonomous China,a composite cooling technology combining air cooling with phase change materials was proposed.Based on a one-dimensional heat generation model and a three-dimensional heat transfer model,the heat generation characteristics of lithium battery modules under high-rate dis-charge were studied.ANSYS software was used to study the temperature distribution of the battery un-der air cooling.At the same time,phase change material cooling was applied to the connection between the copper bar and the pole,and a heat dissipation partition was placed between the modules for phase change material cooling to further explore the maximum temperature distribution of single-cell batter-ies.The results show that the maximum temperature of the single-cell battery is reduced to 29℃,and the maximum temperature difference between the cells is 2℃.The heat dissipation effect of the battery is optimized.
作者
肖立
董秀娟
杨亚会
兰建平
王国强
王思滕
Xiao Li;Dong Xiujuan;Yang Yahui;Lan Jianping;Wang Guoqiang;Wang Siteng(Hubei University of Automotive Technology,Shiyan 442002,China)
出处
《湖北汽车工业学院学报》
2024年第1期24-29,共6页
Journal of Hubei University Of Automotive Technology
基金
汽车动力传动与电子控制湖北省重点实验室开放基金(ZDK12023A01)
湖北汽车工业学院教学改革研究项目(JY2023004)。
关键词
动力锂电池
产热特性
温度
复合冷却
lithium power battery
heat generation characteristics
temperature
composite cooling
