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Investigating the evolving microstructure of lithium metal electrodes in 3D using X-ray computed tomography

Taiwo, Oluwadamilola O.; Finegan, Donal P; Paz-Garcia, J. M. LU ; Eastwood, David S.; Bodey, A. J.; Rau, Donald C.; Hall, S. A. LU ; Brett, Dan J. L.; Lee, Peter D. and Shearing, Paul R. (2017) In Physical Chemistry Chemical Physics 19(33). p.22111-22120
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... (More)

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 three-dimensions. 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.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Chemistry Chemical Physics
volume
19
issue
33
pages
10 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85028550062
  • wos:000408257700022
ISSN
1463-9076
DOI
10.1039/c7cp02872e
language
English
LU publication?
yes
id
478e35ac-b4f2-4d8f-9186-4393c0d77baa
date added to LUP
2017-09-28 09:06:28
date last changed
2018-01-16 13:19:44
@article{478e35ac-b4f2-4d8f-9186-4393c0d77baa,
  abstract     = {<p>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 three-dimensions. 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.</p>},
  author       = {Taiwo, Oluwadamilola O. and Finegan, Donal P and Paz-Garcia, J. M. and Eastwood, David S. and Bodey, A. J. and Rau, Donald C. and Hall, S. A. and Brett, Dan J. L. and Lee, Peter D. and Shearing, Paul R.},
  issn         = {1463-9076},
  language     = {eng},
  number       = {33},
  pages        = {22111--22120},
  publisher    = {Royal Society of Chemistry},
  series       = {Physical Chemistry Chemical Physics},
  title        = {Investigating the evolving microstructure of lithium metal electrodes in 3D using X-ray computed tomography},
  url          = {http://dx.doi.org/10.1039/c7cp02872e},
  volume       = {19},
  year         = {2017},
}