基于液体介质的电动汽车动力电池热管理研究进展

电动汽车在节能减排上具有很大的潜力和优势，但其性能受动力电池的制约，而温度又会影响电池的安全和寿命。因此，为保证电动汽车的综合性能，需配置合理的电池热管理系统。由于液体冷却具有较好的降温效果，采用液体介质对电池进行热管理近年来逐渐引起重视。本文介绍了基于液体介质的电池热管理基本原理，综述了液体介质应用于电池热管理的研究进展，并重点介绍了新型热管在电池散热方面的应用，同时指出了目前液体介质冷却电池时存在的一些问题。

Research Development of Battery Thermal Management System

The electric vehicles (EVs) have great potential and advantage in energy conservation and emission reduction. However, the performance of EVs is restricted by power battery, whose safety and lifetime are affected by temperature. Thus, a suitable battery thermal management (BTM) system is indispensable to guarantee the whole performance of EVs. BTM system employed liquid medium has received much attention in recent years as its excellent cooling effect. In this paper, the fundamental of liquid medium based BTM was introduced and the development of research and application of liquid medium based BTM especially by using novel heat pipes were summarized. Some precautions during the design and application of liquid medium for cooling the battery were also pointed out.