Stable crack growth in nanostructured Li-batteries

K. E. Aifantis; J. P. Dempsey

doi:10.1016/j.jpowsour.2004.11.037

Stable crack growth in nanostructured Li-batteries

K. E. Aifantis, J. P. Dempsey

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

93 Scopus citations

Abstract

The formation of damage, which results from the large volume expansion of the active sites during electrochemical cycling, in rechargeable Li-batteries, is modelled from a fracture mechanics viewpoint to facilitate the selection of the most effective electrode materials and configurations. The present study is a first step towards examining stable cracking in such high-energy storage devices, by considering three different configurations at the nanoscale, which are currently at an experimental stage. As a result, stability diagrams concerning crack growth are constructed and compared for the following cases: (a) the electrodes are thin films, (b) the Li-insertion sites in the anode are nanofibre-like inclusions, (c) the active sites in both electrodes are spherical.

Original language	English (US)
Pages (from-to)	203-211
Number of pages	9
Journal	Journal of Power Sources
Volume	143
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jpowsour.2004.11.037
State	Published - Apr 27 2005
Externally published	Yes

Keywords

Cracking
Fracture mechanics
Li-batteries

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.jpowsour.2004.11.037

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title = "Stable crack growth in nanostructured Li-batteries",

abstract = "The formation of damage, which results from the large volume expansion of the active sites during electrochemical cycling, in rechargeable Li-batteries, is modelled from a fracture mechanics viewpoint to facilitate the selection of the most effective electrode materials and configurations. The present study is a first step towards examining stable cracking in such high-energy storage devices, by considering three different configurations at the nanoscale, which are currently at an experimental stage. As a result, stability diagrams concerning crack growth are constructed and compared for the following cases: (a) the electrodes are thin films, (b) the Li-insertion sites in the anode are nanofibre-like inclusions, (c) the active sites in both electrodes are spherical.",

keywords = "Cracking, Fracture mechanics, Li-batteries",

author = "Aifantis, {K. E.} and Dempsey, {J. P.}",

note = "Funding Information: KEA is grateful to her advisor Professor John Willis for his encouragement and helpful remarks and to the National Science Foundation for its support through its Graduate Research Fellowship Program. Both authors would like to thank Professors Andrew Palmer and Stephen Hackney for their helpful discussions. J.P.D. would like to acknowledge the support of the US Army (by Grant DAAD 19-00-1-0479) and the National Science Foundation (by the OPP Grant 0338226).",

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doi = "10.1016/j.jpowsour.2004.11.037",

language = "English (US)",

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journal = "Journal of Power Sources",

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AU - Aifantis, K. E.

AU - Dempsey, J. P.

N1 - Funding Information: KEA is grateful to her advisor Professor John Willis for his encouragement and helpful remarks and to the National Science Foundation for its support through its Graduate Research Fellowship Program. Both authors would like to thank Professors Andrew Palmer and Stephen Hackney for their helpful discussions. J.P.D. would like to acknowledge the support of the US Army (by Grant DAAD 19-00-1-0479) and the National Science Foundation (by the OPP Grant 0338226).

PY - 2005/4/27

Y1 - 2005/4/27

N2 - The formation of damage, which results from the large volume expansion of the active sites during electrochemical cycling, in rechargeable Li-batteries, is modelled from a fracture mechanics viewpoint to facilitate the selection of the most effective electrode materials and configurations. The present study is a first step towards examining stable cracking in such high-energy storage devices, by considering three different configurations at the nanoscale, which are currently at an experimental stage. As a result, stability diagrams concerning crack growth are constructed and compared for the following cases: (a) the electrodes are thin films, (b) the Li-insertion sites in the anode are nanofibre-like inclusions, (c) the active sites in both electrodes are spherical.

AB - The formation of damage, which results from the large volume expansion of the active sites during electrochemical cycling, in rechargeable Li-batteries, is modelled from a fracture mechanics viewpoint to facilitate the selection of the most effective electrode materials and configurations. The present study is a first step towards examining stable cracking in such high-energy storage devices, by considering three different configurations at the nanoscale, which are currently at an experimental stage. As a result, stability diagrams concerning crack growth are constructed and compared for the following cases: (a) the electrodes are thin films, (b) the Li-insertion sites in the anode are nanofibre-like inclusions, (c) the active sites in both electrodes are spherical.

KW - Cracking

KW - Fracture mechanics

KW - Li-batteries

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DO - 10.1016/j.jpowsour.2004.11.037

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EP - 211

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 1-2

ER -

Stable crack growth in nanostructured Li-batteries

Abstract

Keywords

ASJC Scopus subject areas

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