强制风冷锂离子电池热管理系统研究综述

Review on Thermal Management System of Forced Air-Cooled Lithium-ion Battery

为解决车用锂离子动力电池在高强度工作过程中电池温度过高以及电池组温均性差等问题,需要对电池组设计合理的电池热管理系统(BTMS),以此提升电池组的冷却性能。首先阐述了热管理系统的常见冷却方式,分析了各种冷却方式之间的优缺点。随后针对应用最为广泛且最易实现的空气冷却方式,从冷却空气流型、电池排布方式、电池间距、冷却空气流向以及受控变量这5个方面对强制风冷BTMS进行了综述分析。本文的综述研究可为新一代强制风冷BTMS的结构设计与参数优化提供有效参考。

In order to solve the problems of high battery temperature and poor uniformity of battery pack temperature in the process of high-intensity operation,it is necessary to design a reasonable Battery Thermal Management System(BTMS)to improve the cooling performance of the battery pack.This paper first describes the common cooling methods of thermal management system,and analyzes the advantages and disadvantages of various cooling methods.Then,in view of the most widely used and easy to realize air cooling methods,the forced air cooling BTMS is summarized and analyzed from 5 aspects:cooling air flow pattern,battery arrangement,battery spacing,cooling air flow direction and controlled variables.This review can provide an effective reference for the structural design and parameter optimization of the new generation of forced air-cooled BTMS.