Investigating the evolving microstructure of lithium metal electrodes in 3D using X-ray Computed Tomography

O. O. Taiwo; D.P. Finegan; J. M. Paz-García; David Eastwood; A.J. Bodey; C Rau; S. A. Hall; D. J L Brett; Peter Lee; P.R. Shearing

doi:10.1039/C7CP02872E

Investigating the evolving microstructure of lithium metal electrodes in 3D using X-ray Computed Tomography

O. O. Taiwo, D.P. Finegan, J. M. Paz-García, David Eastwood, A.J. Bodey, C Rau, S. A. Hall, D. J L Brett, Peter Lee, P.R. Shearing

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Abstract

The growth of electrodeposited lithium microstructures on metallic lithium electrodes has prevented their use in rechargeable lithium batteries due to early performance degradation and safety implications. Understanding the evolution of lithium microstructures during battery operation is crucial for the development of an effective and safe rechargeable lithium-metal battery. This study employs both synchrotron and laboratory X-ray computed tomography to
investigate the morphological evolution of the surface of metallic lithium electrodes during a single cell discharge and over numerous cycles, respectively. The formation of surface pits and the growth of mossy lithium deposits through the separator layer are characterised in threedimensions. This has provided insight into the microstructural evolution of lithium-metal electrodes during rechargeable battery operation, and further understanding of the importance of
separator architecture in mitigating lithium dendrite growth.

Original language	English
Journal	Physical Chemistry Chemical Physics
Early online date	25 Jul 2017
DOIs	https://doi.org/10.1039/C7CP02872E
Publication status	Published - 2017

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10.1039/C7CP02872E

c7cp02872eAccepted author manuscript, 1.92 MB

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UoMaH: The University of Manchester at Harwell
Lawrence, J. (PI), Burnett, T. (PI), Baker, M. (Researcher), Eastwood, D. (Researcher), Falkowska, M. (Researcher), Freitas, D. (Researcher), Hunt, S. (Researcher), Khan, A. (Researcher), Lane, H. (Researcher), Lezcano Gonzalez, I. (Researcher), Ma, L. (Researcher), Mirihanage, W. (Researcher), Parlett, C. (Researcher), Xu, S. (Researcher), Yan, K. (Researcher), Reinhard, C. (Support team), Duggins, D. (Technical team), Lewis-Fell, J. (Technical team), Nonni, S. (Technical team), Rollings, B. (Technical team), Sinclair, L. (Technical team) & Batts, S. (Support team)
1/01/18 → …
Project: Other
Structural Evolution across multiple time and length scales
Withers, P. (PI), Cartmell, S. (CoI), Cernik, R. (CoI), Derby, B. (CoI), Eichhorn, S. (CoI), Freemont, A. (CoI), Hollis, C. (CoI), Mummery, P. (CoI), Sherratt, M. (CoI), Thompson, G. (CoI) & Watts, D. (CoI)
1/06/11 → 31/05/16
Project: Research

Cite this

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title = "Investigating the evolving microstructure of lithium metal electrodes in 3D using X-ray Computed Tomography",

abstract = "The growth of electrodeposited lithium microstructures on metallic lithium electrodes has prevented their use in rechargeable lithium batteries due to early performance degradation and safety implications. Understanding the evolution of lithium microstructures during battery operation is crucial for the development of an effective and safe rechargeable lithium-metal battery. This study employs both synchrotron and laboratory X-ray computed tomography toinvestigate the morphological evolution of the surface of metallic lithium electrodes during a single cell discharge and over numerous cycles, respectively. The formation of surface pits and the growth of mossy lithium deposits through the separator layer are characterised in threedimensions. This has provided insight into the microstructural evolution of lithium-metal electrodes during rechargeable battery operation, and further understanding of the importance ofseparator architecture in mitigating lithium dendrite growth.",

author = "Taiwo, {O. O.} and D.P. Finegan and Paz-Garc{\'i}a, {J. M.} and David Eastwood and {A.J. Bodey} and C Rau and Hall, {S. A.} and Brett, {D. J L} and Peter Lee and P.R. Shearing",

year = "2017",

doi = "10.1039/C7CP02872E",

language = "English",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

}

TY - JOUR

T1 - Investigating the evolving microstructure of lithium metal electrodes in 3D using X-ray Computed Tomography

AU - Taiwo, O. O.

AU - Finegan, D.P.

AU - Paz-García, J. M.

AU - Eastwood, David

AU - A.J. Bodey,

AU - Rau, C

AU - Hall, S. A.

AU - Brett, D. J L

AU - Lee, Peter

AU - Shearing, P.R.

PY - 2017

Y1 - 2017

N2 - The growth of electrodeposited lithium microstructures on metallic lithium electrodes has prevented their use in rechargeable lithium batteries due to early performance degradation and safety implications. Understanding the evolution of lithium microstructures during battery operation is crucial for the development of an effective and safe rechargeable lithium-metal battery. This study employs both synchrotron and laboratory X-ray computed tomography toinvestigate the morphological evolution of the surface of metallic lithium electrodes during a single cell discharge and over numerous cycles, respectively. The formation of surface pits and the growth of mossy lithium deposits through the separator layer are characterised in threedimensions. This has provided insight into the microstructural evolution of lithium-metal electrodes during rechargeable battery operation, and further understanding of the importance ofseparator architecture in mitigating lithium dendrite growth.

AB - The growth of electrodeposited lithium microstructures on metallic lithium electrodes has prevented their use in rechargeable lithium batteries due to early performance degradation and safety implications. Understanding the evolution of lithium microstructures during battery operation is crucial for the development of an effective and safe rechargeable lithium-metal battery. This study employs both synchrotron and laboratory X-ray computed tomography toinvestigate the morphological evolution of the surface of metallic lithium electrodes during a single cell discharge and over numerous cycles, respectively. The formation of surface pits and the growth of mossy lithium deposits through the separator layer are characterised in threedimensions. This has provided insight into the microstructural evolution of lithium-metal electrodes during rechargeable battery operation, and further understanding of the importance ofseparator architecture in mitigating lithium dendrite growth.

U2 - 10.1039/C7CP02872E

DO - 10.1039/C7CP02872E

M3 - Article

SN - 1463-9076

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

ER -

Investigating the evolving microstructure of lithium metal electrodes in 3D using X-ray Computed Tomography

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UoMaH: The University of Manchester at Harwell

Structural Evolution across multiple time and length scales

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