基于EIS分析的锂电池健康状态在线评估方法研究  

Research on Online Assessment Methods for Lithium Battery State of Health Based on EIS Analysis

作　　者：宋扬 陈岳飞 罗红 柏文琦 SONG Yang;CHEN Yuefei;LUO Hong;BAI Wenqi(Hunan Institute of Metrology and Testing,Changsha 410014,China)

机构地区：[1]湖南省计量检测研究院,长沙410014

出　　处：《计量科学与技术》2025年第2期16-21,54,共7页Metrology Science and Technology

基　　金：湖南省自然科学基金科市联合基金项目(2022JJ90035)。

摘　　要：电化学阻抗谱(Electrochemical Impedance Spectroscopy,EIS)技术已广泛应用于锂离子电池(Lithium-ion Battery,LIB)健康状态(State of Health,SOH)的在线评估。当前,国内外围绕基于EIS的锂电池SOH评估研究进展显著。在基础研究中,EIS技术凭借特定原理进行测试,其参数与电池健康状况紧密相连,测试流程规范有序,结果呈现形式丰富多样,且在电池多方面研究中得以广泛应用。在评估方法上,从剖析参数关联到构建模型持续创新,不过数据处理虽有显著成效,却仍面临数据复杂、模型局限以及实时性难题的困扰。综述了近年来国内外基于EIS分析的锂电池健康状态在线评估方法的研究进展,涵盖EIS技术的基本原理、常见的EIS分析方法、数据处理与建模技术,以及其在电池管理系统中的应用,重点探讨了当前研究中存在的挑战与未来发展方向。Electrochemical Impedance Spectroscopy(EIS)technology has been widely adopted for online evaluation of the State of Health(SOH)of Lithium-ion Batteries(LIBs).Currently,significant progress has been made in research on SOH evaluation of lithium batteries based on EIS both domestically and internationally.In basic research,EIS technology operates on specific principles,with its parameters closely related to battery health status.The testing process is standardized and methodical,presenting results in diverse formats,and has found widespread application across various aspects of battery research.In terms of evaluation methods,continuous innovation has evolved from analyzing parameter correlations to constructing predictive models.Despite significant achievements in data processing,challenges persist regarding data complexity,model limitations,and real-time implementation issues.This article reviews recent research progress on online assessment methods for lithium battery state of health based on EIS analysis,covering the basic principles of EIS technology,common EIS analysis methods,data processing and modeling techniques,as well as applications in battery management systems.The review emphasizes current research challenges and future development directions in this field.

关 键 词：计量学 电化学阻抗谱 锂离子电池 健康状态 在线评估 

分 类 号：TB99[一般工业技术—计量学]