基于锂电池模组的风冷方式研究

风冷技术虽已广泛应用于动力锂电池系统,但目前锂电池系统风冷的研究主要集中在如何利用电芯间隙冷却,电芯排布方式和模组进出风口形式的设计上,然而这些方法在实际应用中具有一定的限制.针对以上问题,本文在模组底部加装导热垫及散热片,同时利用计算流体力学的方法对该技术方案进行数值模拟,并分析对比加装不同形式的散热片,电池模组内电...

Research on Air Cooling Method based on Lithium Battery Module

Although air-cooling technology has been widely used in power lithium battery systems,the current research on air-cooling lithium battery systems is mainly focused on how to use the cell gap cooling,the cell arrangement method and the design of the module air inlet and outlet.These methods have certain limitations in practical applications.In response to the above problems,this article installs a thermal pad and a heat sink at the bottom of the module,and uses computational fluid dynamics to numerically simulate the technical solution,and analyzes and compares the installation of different types of heat sinks,and the cell temperature in the battery module.The results show that installing a heat sink at the bottom of the module can quickly transfer the heat of the cells to the cooling airflow,and effectively reduce the temperature difference between the cells;the heat dissipation performance of the staggered fin type heat sink is better than that of the flat fin type heat sink;the number and thickness of the fins affect the heat dissipation performance of the heat sink to a certain extent.