膨胀石墨石蜡复合材料的制备及其在动力电池热管理系统中的散热特性

膨胀石墨石蜡复合材料的制备及其在动力电池热管理系统中的散热特性
摘要：摘要本文将石蜡与膨胀石墨进行复合，并经过压制工艺做成板状膨胀石墨/石蜡（简称EG/PCM）复合材料，以解决石蜡导热性能差以及相变后变成液体流动的问题。用导热分析仪和差示扫描量热仪分别测试了EG/PCM复合材料的导热性能和潜热，并用扫描电镜表征了其微观结构。将EG/PCM复合材料应用于动力电池热管理系统，对单体电池和电池模块分别利用空气冷却和EG/PCM冷却后在1.0 C和1.5 C放电倍率下进行放电，并用温度巡检仪记录电池放电过程的温度情况，对比两种散热方式对动力电池的散热效果。

Abstract:：In this paper, paraffin and expanded graphite were compounded and pressed into a plate (EG/PCM composite material) in order to improve the thermal conductivity and avoid the fluidity of paraffin. The thermal conductivity and latent heat of EG/PCM were tested by LFA and DSC, respectively, and its microstructure was observed by a scanning electron microscope (SEM). EG/PCM was applied to battery thermal management system. Single cells and battery modules were cooled by air and EG/PM, respectively. Their discharge behavior under 1.0 C and 1.5 C discharge rate were investigated and their temperature change during discharging process was recorded by a temperature logging devices. The cooling effects of these two cooling methods were compared.

中文标题：膨胀石墨石蜡复合材料的制备及其在动力电池热管理系统中的散热特性
英文标题：Preparation of Expanded Graphite/Paraffin Composite Materials and Their Heat Dissipation Characteristics in Power Battery Thermal Management System
发表时间：2014-04-13

作者：
刘臣臻，张国庆，王子缘，吴伟雄，苏  攀
作者简介：
刘臣臻（1989-），男，硕士研究生，主要从事复合相变储能材料及电池热管理的研究。

关键词：膨胀石墨/石蜡,复合相变材料,散热性能,动力电池,
Key words：expanded graphite/paraffin,composite phase change material,heat dissipation,power battery,

2025-1-18 20:02 上传 膨胀石墨石蜡复合材料的制备及其在动力电池热管理系统中的散热特性.pdf

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