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

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

17 Citations (Scopus)

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
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
Publication status	Published - 1 Jul 2019

Keywords

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.scriptamat.2019.03.033

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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 = "Publisher Copyright: {\textcopyright} 2019",

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

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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

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

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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

UN SDGs

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