Lithium redistribution around the crack tip of lithium-ion battery electrodes

Le Yang; Hao Sen Chen; Hanqing Jiang; Wei Li Song; Daining Fang

doi:10.1016/j.scriptamat.2019.03.033

Lithium redistribution around the crack tip of lithium-ion battery electrodes

Le Yang, Hao Sen Chen, Hanqing Jiang, Wei Li Song, Daining Fang

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Silicon film with pre-crack was used to study the coupling effect of stress and electrochemical field around the crack tip. The in-situ experiments were established to monitor the crack to realize the stress concentration around the crack and simultaneously prevent the crack initiation. The ex-situ Auger electron spectroscopy experiments shown the remarkably Li redistributed phenomenon around the crack tip. Furthermore, the fully coupled finite element method was used to reveal the fundamental mechanisms of the Li gathering effect and the stress relaxation phenomenon around the crack tip.

Original language	English (US)
Pages (from-to)	11-15
Number of pages	5
Journal	Scripta Materialia
Volume	167
DOIs	https://doi.org/10.1016/j.scriptamat.2019.03.033
State	Published - Jul 1 2019

Keywords

Crack tip
Electrochemistry
Lithium-ion batteries
Silicon
Stress-assisted diffusion

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2019.03.033

Cite this

@article{a9e3a238b4f9435485450521d3a85465,

title = "Lithium redistribution around the crack tip of lithium-ion battery electrodes",

abstract = "Silicon film with pre-crack was used to study the coupling effect of stress and electrochemical field around the crack tip. The in-situ experiments were established to monitor the crack to realize the stress concentration around the crack and simultaneously prevent the crack initiation. The ex-situ Auger electron spectroscopy experiments shown the remarkably Li redistributed phenomenon around the crack tip. Furthermore, the fully coupled finite element method was used to reveal the fundamental mechanisms of the Li gathering effect and the stress relaxation phenomenon around the crack tip.",

keywords = "Crack tip, Electrochemistry, Lithium-ion batteries, Silicon, Stress-assisted diffusion",

author = "Le Yang and Chen, {Hao Sen} and Hanqing Jiang and Song, {Wei Li} and Daining Fang",

note = "Funding Information: Financial support from National Natural Science Foundation of China (Grant Nos. 11672341 and 11572002 ), National Key Research and Development Program of China (Grant No. 2018YFB0104400 ), Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 11521202 ), National Materials Genome Project (Grant No. 2016YFB0700600 ) and Beijing Natural Science Foundation (Grant Nos. 16L00001 and 2182065 ) is gratefully acknowledged. Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = jul,

day = "1",

doi = "10.1016/j.scriptamat.2019.03.033",

language = "English (US)",

volume = "167",

pages = "11--15",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Lithium redistribution around the crack tip of lithium-ion battery electrodes

AU - Yang, Le

AU - Chen, Hao Sen

AU - Jiang, Hanqing

AU - Song, Wei Li

AU - Fang, Daining

N1 - Funding Information: Financial support from National Natural Science Foundation of China (Grant Nos. 11672341 and 11572002 ), National Key Research and Development Program of China (Grant No. 2018YFB0104400 ), Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 11521202 ), National Materials Genome Project (Grant No. 2016YFB0700600 ) and Beijing Natural Science Foundation (Grant Nos. 16L00001 and 2182065 ) is gratefully acknowledged. Publisher Copyright: © 2019

PY - 2019/7/1

Y1 - 2019/7/1

N2 - Silicon film with pre-crack was used to study the coupling effect of stress and electrochemical field around the crack tip. The in-situ experiments were established to monitor the crack to realize the stress concentration around the crack and simultaneously prevent the crack initiation. The ex-situ Auger electron spectroscopy experiments shown the remarkably Li redistributed phenomenon around the crack tip. Furthermore, the fully coupled finite element method was used to reveal the fundamental mechanisms of the Li gathering effect and the stress relaxation phenomenon around the crack tip.

AB - Silicon film with pre-crack was used to study the coupling effect of stress and electrochemical field around the crack tip. The in-situ experiments were established to monitor the crack to realize the stress concentration around the crack and simultaneously prevent the crack initiation. The ex-situ Auger electron spectroscopy experiments shown the remarkably Li redistributed phenomenon around the crack tip. Furthermore, the fully coupled finite element method was used to reveal the fundamental mechanisms of the Li gathering effect and the stress relaxation phenomenon around the crack tip.

KW - Crack tip

KW - Electrochemistry

KW - Lithium-ion batteries

KW - Silicon

KW - Stress-assisted diffusion

UR - http://www.scopus.com/inward/record.url?scp=85063621734&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063621734&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2019.03.033

DO - 10.1016/j.scriptamat.2019.03.033

M3 - Article

AN - SCOPUS:85063621734

SN - 1359-6462

VL - 167

SP - 11

EP - 15

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Lithium redistribution around the crack tip of lithium-ion battery electrodes

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this