多元低共熔材料热物性及电池热管理性能研究  

The Investigation on Thermal Properties and Battery Thermal Management Performance of Polynary Eutectic Mixtures

作　　者：吕培召 徐一钧 沈仕轩 王沛霖 饶中浩 Lü Pei-Zhao;XU Yi-Jun;SHEN Shi-Xuan;WANG Pei-Lin;RAO Zhong-Hao(Laboratory of Energy Storage and Heat Transfer,School of Electrical and Power Engineering,China University of Mining and Technology,Xuzhou 221116,China;Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]中国矿业大学电气与动力工程学院,徐州221116 [2]中国矿业大学江苏省高效储能技术与装备工程实验室,徐州221116

出　　处：《工程热物理学报》2021年第6期1507-1515,共9页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51776218);江苏省优秀青年基金(No.BK20180083)。

摘　　要：多元共熔相变材料在储热及控温领域具有重要的应用价值,本文通过低共熔理论合成了三种多元共熔相变材料,CALA-MA-PA(CLMP),CA-LA-PA-SA(CLPS)和CA-LA-TD(CLTD),相变温度分别为13.47℃,13.47℃和8.95℃,对应的相变潜热为137.67 J·g^(-1),142.44 J·g^(-1)和138.98 J·g^(-1)。此外,本文对合成的多元共熔相变材料的基本物性、导热系数以及热稳定进行研究,并利用电化学产热作为热源,对三种多元共熔相变材料的电池热管理性能进行了研究,结果表明,三种多元共熔相变材料均能达到理想的控温效果,降低温差,提高电池寿命及热安全性。Polyeutectic phase change materials are quite important for thermal energy storage and temperature control.In this paper,three kinds of polyeutectic phase change materials,CA-LA-MA-PA(CLMP),CA-LA-PA-SA(CLPS)and CA-LA-TD(CLTD),were prepared via low eutectic theory,and the phase transition temperature is 13.47℃,13.47℃and 8.95℃respectively,the corresponding latent heat capacity is 137.67 J·g^(-1),142.44 J·g^(-1) and 138.98 J·g^(-1) respectively.In addition,in this paper,the basic physical properties,thermal conductivity and thermal stability of the synthesized polyeutectic phase change materials were studied,and the thermal management performance of the three kinds of phase-change materials was studied using electrochemical heat generation as the heat source.The results showed that the three polyeutectic phase change materials can achieve the ideal temperature control effect,reduce the temperature difference,and improve the battery life and thermal safety.

关 键 词：电池热管理 相变材料 电化学产热 

分 类 号：TK11[动力工程及工程热物理—热能工程]