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

doi:10.1016/j.electacta.2022.141300

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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
	Wen JC(温济慈)1,3; Zou,Qingrong 2; Chen CG(陈春光)1,3; Wei YJ(魏宇杰)1,3
刊名	ELECTROCHIMICA ACTA
	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
DOI	10.1016/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.
分类号	二类/Q1
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关键词	ON-BOARD STATE ; MANAGEMENT-SYSTEM ; CAPACITY ANALYSIS ; AGING MECHANISMS ; LIFEPO4 BATTERY ; MODEL ; PROGNOSTICS ; PREDICTION
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
其他责任者	Chen, Chunguang ; Wei, Yujie
内容类型	期刊论文
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
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 2.Beijing Informat Sci & Technol Univ, Sch Appl Sci, Beijing 100192, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wen JC,Zou,Qingrong,Chen CG,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	温济慈,Zou,Qingrong,陈春光,&魏宇杰.(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	温济慈,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.