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Linear correlation between state-of-health and incremental state-of-charge in Li-ion batteries and its application to SoH evaluation

文献类型：期刊论文

作者Wen, Jici1,3; Zou, Qingrong2; Chen, Chunguang1,3; Wei, Yujie1,3; Wei YJ(魏宇杰); Wen JC(温济慈)
刊名ELECTROCHIMICA ACTA
出版日期2022-12-01
卷号434页码:10
关键词State -of -health evaluation State -of -charge Lithium -ion battery Incremental capacity curve Sliding voltage window
ISSN号0013-4686
DOI10.1016/j.electacta.2022.141300
通讯作者Chen, Chunguang(chenchunguang@imech.ac.cn) ; Wei, Yujie(yujie_wei@lnm.imech.ac.cn)
英文摘要SoH (State-of-Health) evaluation is of pressing need in the health management of commercial Li-ion batteries and has been a topic of intensive research. A simple route to supply a quick, non-destructive, and preferably on-site assessment of SoH with high fidelity is desired. In this paper, analysis based on a partial (dis)charge and a sliding voltage window on the constant-current (dis)charge voltage-time curve may fulfill the need. The incremental State-of-Charge (Delta SoC) (derived from the sliding window) is proportional to the SoH within a suitable voltage region. The slope k of the SoH - Delta SoC curve and its extrapolated interception at SoH=1, denoted as Delta S1oC, can then be used to differentiate the remaining life of batteries of the same SoH. The proposed SoH evaluation method, along with the linearity characterized by k and Delta S1oC, make it an appealing route toward quick and on-site health management of batteries.
WOS关键词ON-BOARD STATE ; MANAGEMENT-SYSTEM ; CAPACITY ANALYSIS ; AGING MECHANISMS ; LIFEPO4 BATTERY ; MODEL ; PROGNOSTICS ; PREDICTION
资助项目National Natural Science Foundation of China (NSFC) Basic Science Center[11988102] ; NSFC[12002343] ; Institute of Mechanics, Chinese Academy of Sciences[E1Z1010901]
WOS研究方向Electrochemistry
语种英语
WOS记录号WOS:000868476600003
资助机构National Natural Science Foundation of China (NSFC) Basic Science Center ; NSFC ; Institute of Mechanics, Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/90421]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Chen, Chunguang; Wei, Yujie
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Beijing Informat Sci & Technol Univ, Sch Appl Sci, Beijing 100192, Peoples R China
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wen, Jici,Zou, Qingrong,Chen, Chunguang,et al. Linear correlation between state-of-health and incremental state-of-charge in Li-ion batteries and its application to SoH evaluation[J]. ELECTROCHIMICA ACTA,2022,434:10.
APA Wen, Jici,Zou, Qingrong,Chen, Chunguang,Wei, Yujie,魏宇杰,&温济慈.(2022).Linear correlation between state-of-health and incremental state-of-charge in Li-ion batteries and its application to SoH evaluation.ELECTROCHIMICA ACTA,434,10.
MLA Wen, Jici,et al."Linear correlation between state-of-health and incremental state-of-charge in Li-ion batteries and its application to SoH evaluation".ELECTROCHIMICA ACTA 434(2022):10.

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来源：力学研究所

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