动力锂离子电池健康状态和剩余使用寿命研究综述

Review of State of Health and Remaining Useful Life of Power Lithium-ion Batteries

随着电动汽车的不断发展,动力锂离子电池市场得到不断地壮大。因此,动力锂离子电池的安全性也成为了一个越来越重要的课题。针对动力锂离子电池的健康状态和剩余使用寿命的研究进行了综述,列举了主要的电池荷电状态、健康状态和剩余使用寿命的定义方式,总结了锂离子电池的衰减机理以及引起衰减的外部因素,并介绍了基于模型、基于数据、基于模型和数据融合的三种SOH和RUL预测方法,并结合不同的学者研究成果进行了对比,为后续的研究提供了帮助。

With the continuous development of electric vehicles,the market for powered lithium-ion batteries has been growing.Therefore,the safety of power lithium-ion battery has become an increasingly important issue.In this paper,the state of health and remaining useful life of the power lithium-ion battery are reviewed,the main definitions of SOC,SOH and RUL are listed,the attenuation of the lithium-ion battery and the external factors causing the attenuation are summarized,and the three SOH and RUL prediction methods based on model,data,model and data fusion are introduced,and the research results of different scholars are compared to help the follow-up research.