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Estimating the thickness of diffusive solid electrolyte interface
Wang XH; Shen WH(沈文豪); Huang XF(黄先富); Zang JL(臧金良); Zhao YP(赵亚溥); Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.; Zhao, YP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2017-06-01
Volume60Issue:6Pages:064612-1-064612-8
ISSN1674-7348
Abstract

The solid electrolyte interface (SEI) is a hierarchical structure formed in the transition zone between the electrode and the electrolyte. The properties of lithium-ion (Li-ion) battery such as cycle life irreversible capacity loss self-discharge rate electrode corrosion and safety are usually ascribed to the quality of the SEI which are highly dependent on the thickness. Thus understanding the formation mechanism and the SEI thickness is of prime interest. First we apply dimensional analysis to obtain an explicit relation between the thickness and the number density in this study. Then the SEI thickness in the initial charge-discharge cycle is analyzed and estimated for the first time using the Cahn-Hilliard phase-field model. In addition the SEI thickness by molecular dynamics simulation validates the theoretical results. It has been shown that the established model and the simulation in this paper estimate the SEI thickness concisely within order-of-magnitude of nanometers. Our results may help in evaluating the performance of SEI and assist the future design of Li-ion battery.

KeywordLithium-ion Battery Solid Electrolyte Interface Diffusion Model Thickness Estimation
DOI10.1007/s11433-017-9031-2
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000402890000009
WOS KeywordLithium-ion Battery ; Propylene Carbonate Solutions ; Graphite Negative-electrodes ; Surface-chemistry ; Intercalation Processes ; Spinodal Decomposition ; Molecular-dynamics ; Li ; Interphase ; Behavior
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China(11372313 ; Chinese Academy of Sciences (CAS) through CAS Interdisciplinary Innovation Team Project ; CAS Key Research Program of Frontier Sciences(QYZDJ-SSW-JSC019) ; CAS Strategic Priority Research Program(XDB22040401) ; U1562105 ; 11611130019)
CSCD IDCSCD:6006720
DepartmentLNM纳/微系统力学与物理力学
Classification二类/q1
Ranking1
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60529
Collection非线性力学国家重点实验室
Corresponding AuthorZhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.; Zhao, YP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Wang XH,Shen WH,Huang XF,et al. Estimating the thickness of diffusive solid electrolyte interface[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2017,60(6):064612-1-064612-8.
APA Wang XH.,Shen WH.,Huang XF.,Zang JL.,Zhao YP.,...&Zhao, YP .(2017).Estimating the thickness of diffusive solid electrolyte interface.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,60(6),064612-1-064612-8.
MLA Wang XH,et al."Estimating the thickness of diffusive solid electrolyte interface".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 60.6(2017):064612-1-064612-8.
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