锂离子动力电池建模方法综述

Review of Modeling Techniques for Lithium-ion Traction Batteries

由于电池内部化学反应具有微观性,常用的传感技术难以准确地反映其参数的变化,所以建立精确的电池模型是电池管理系统开发的难题。同时,模型的准确性还影响着电池管理系统的鲁棒性。文章首先简述了电池的结构性能、电池管理系统的基本功能,展示了锂离子电池较其他电池的优点,然后分别从电学特性模型、热模型、电热耦合模型及老化模型4个方面,较为具体介绍了已有的建模方法,以引导开创新的模型的思路,促进智能电池管理系统算法的发展。

Because the battery internal chemical reaction has the micro-objectivity, commonly used sensing technology is difficult to accurately reflect the change of its parameters, therefore, the establishment of accurate battery model is a difficult problem in the development of battery management system, at the same time, the accuracy of the model also affects the robustness of battery management system. Firstly, the structure and performance of the battery and the basic functions of the battery management system are described, demonstrates the advantages of lithium-ion batteries over other batteries, then from the electrical property model, thermal model electrothermal coupling model, aging model four aspects, the existing modeling methods are introduced in detail, to guide the ideas of creating new models, promote the development of intelligent battery management system algorithm.