In-operando X-ray tomography study of lithiation induced delamination of Si based anodes for lithium-ion batteries

Farid Tariq; Vladimir Yufit; David S. Eastwood; Yu Merla; Moshiel Biton; Billy Wu; Zhangwei Chen; Kathrin Freedman; Gregory Offer; Emanuel Peled; Peter D. Lee; Diana Golodnitsky; Nigel Brandon

doi:10.1149/2.0081407eel

In-operando X-ray tomography study of lithiation induced delamination of Si based anodes for lithium-ion batteries

Farid Tariq, Vladimir Yufit, David S. Eastwood, Yu Merla, Moshiel Biton, Billy Wu, Zhangwei Chen, Kathrin Freedman, Gregory Offer, Emanuel Peled, Peter D. Lee, Diana Golodnitsky, Nigel Brandon

School of Chemistry

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

Abstract

Silicon-Lithium based rechargeable batteries offer high gravimetric capacity. However cycle life and electrode microstructure failure mechanisms remain poorly understood. Here we present an X-ray tomography method to investigate in-operando lithiation induced stress cracking leading to the delamination of a composite Si based electrode. Simultaneous voltage measurements show increased cell resistance correlating with severe delamination and microstructural changes. 3D analysis revealed 44.1% loss of the initial electrode-current collector area after 1 hour of operation at 2.4 mA/cm ² and a 21.2% increase in new anode surface area. The work represents a new basis for future investigation of Si based anodes.

Original language	English
Pages (from-to)	A76-A78
Journal	ECS Electrochemistry Letters
Volume	3
Issue number	7
DOIs	https://doi.org/10.1149/2.0081407eel
State	Published - 2014

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title = "In-operando X-ray tomography study of lithiation induced delamination of Si based anodes for lithium-ion batteries",

abstract = "Silicon-Lithium based rechargeable batteries offer high gravimetric capacity. However cycle life and electrode microstructure failure mechanisms remain poorly understood. Here we present an X-ray tomography method to investigate in-operando lithiation induced stress cracking leading to the delamination of a composite Si based electrode. Simultaneous voltage measurements show increased cell resistance correlating with severe delamination and microstructural changes. 3D analysis revealed 44.1% loss of the initial electrode-current collector area after 1 hour of operation at 2.4 mA/cm 2 and a 21.2% increase in new anode surface area. The work represents a new basis for future investigation of Si based anodes.",

author = "Farid Tariq and Vladimir Yufit and Eastwood, {David S.} and Yu Merla and Moshiel Biton and Billy Wu and Zhangwei Chen and Kathrin Freedman and Gregory Offer and Emanuel Peled and Lee, {Peter D.} and Diana Golodnitsky and Nigel Brandon",

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doi = "10.1149/2.0081407eel",

language = "אנגלית",

volume = "3",

pages = "A76--A78",

journal = "ECS Electrochemistry Letters",

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TY - JOUR

T1 - In-operando X-ray tomography study of lithiation induced delamination of Si based anodes for lithium-ion batteries

AU - Tariq, Farid

AU - Yufit, Vladimir

AU - Eastwood, David S.

AU - Merla, Yu

AU - Biton, Moshiel

AU - Wu, Billy

AU - Chen, Zhangwei

AU - Freedman, Kathrin

AU - Offer, Gregory

AU - Peled, Emanuel

AU - Lee, Peter D.

AU - Golodnitsky, Diana

AU - Brandon, Nigel

PY - 2014

Y1 - 2014

N2 - Silicon-Lithium based rechargeable batteries offer high gravimetric capacity. However cycle life and electrode microstructure failure mechanisms remain poorly understood. Here we present an X-ray tomography method to investigate in-operando lithiation induced stress cracking leading to the delamination of a composite Si based electrode. Simultaneous voltage measurements show increased cell resistance correlating with severe delamination and microstructural changes. 3D analysis revealed 44.1% loss of the initial electrode-current collector area after 1 hour of operation at 2.4 mA/cm 2 and a 21.2% increase in new anode surface area. The work represents a new basis for future investigation of Si based anodes.

AB - Silicon-Lithium based rechargeable batteries offer high gravimetric capacity. However cycle life and electrode microstructure failure mechanisms remain poorly understood. Here we present an X-ray tomography method to investigate in-operando lithiation induced stress cracking leading to the delamination of a composite Si based electrode. Simultaneous voltage measurements show increased cell resistance correlating with severe delamination and microstructural changes. 3D analysis revealed 44.1% loss of the initial electrode-current collector area after 1 hour of operation at 2.4 mA/cm 2 and a 21.2% increase in new anode surface area. The work represents a new basis for future investigation of Si based anodes.

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JO - ECS Electrochemistry Letters

JF - ECS Electrochemistry Letters

IS - 7

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In-operando X-ray tomography study of lithiation induced delamination of Si based anodes for lithium-ion batteries

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