摘要
Abstract
In order to solve the problems of excessive contact thermal resistance and short service life of thermal conductive material at high-rate battery interfaces,a test platform simulating actral application scenarios was designed.The thermal conductivity of different types of thermal conductive materials was obtained through actual measurement,and a comprehensive optimization selection was carried out in combination with the construction process and service life.Thermal conductive pad has the highest thermal conductivity but exhibit poor adhesion to batteries;additionally,their high friction complicates the battery assembly process.Thermal conductive silicone grease,with moderate viscosity,enables a simple assembly process and has a higher gap filling rate than thermal conductive pad.However,due to the high annualized silicone oil precipitation rate,it dries out after long-term use,leading to thermal conduction failure.Thermal conductive gel combines the advantages of the thermal conductive pad and the thermal conductive silicone grease,featuring high thermal conductivity,tight adhesion to batteries,simple operation process,and long service life.Thus,it is suitable for application in high-rate batteries with a long service cycle.关键词
高倍率电池/界面/导热材料Key words
high rate battery/interface/thermal conductive material分类
信息技术与安全科学
