X-ray tomography for lithium ion battery electrode characterisation — A review
X-ray tomography for lithium ion battery electrode characterisation — A review
In recent years, x-ray tomography has emerged as a powerful analytical tool for the study of lithium ion batteries and the processes occurring within. A region of specific interest is the electrode and, in particular, the heterogeneous and porous structure. The present paper is a review of studies that use x-ray tomography to characterise electrode structure, at both the cell and microstructure scales. At the cell level, x-ray tomography is used to investigate macroscopic design parameters, such as anode and cathode thicknesses, packing density and alignment of assembled cells, as well as to visualise any macroscopic structural defects, such as islanding. At the microstructure level, x-ray tomography allows for quantitative analysis of electrode structures to ascertain parameters such as particle size, tortuosity and volume fraction. The paper also explores different techniques that have been used across the field, from ex-situ, in-situ and operando techniques, to multimodal imaging methods, tomography informed design and results informed imaging.
Li-ion battery, Porous electrode, Review, X-ray tomography
9-14
Houx, James Le
c3130024-47fa-44ee-b10e-a4d76877fb9a
Kramer, Denis
1faae37a-fab7-4edd-99ee-ae4c30d3cde4
28 May 2021
Houx, James Le
c3130024-47fa-44ee-b10e-a4d76877fb9a
Kramer, Denis
1faae37a-fab7-4edd-99ee-ae4c30d3cde4
Houx, James Le and Kramer, Denis
(2021)
X-ray tomography for lithium ion battery electrode characterisation — A review.
Energy Reports, 7 (2), .
(doi:10.1016/j.egyr.2021.02.063).
Abstract
In recent years, x-ray tomography has emerged as a powerful analytical tool for the study of lithium ion batteries and the processes occurring within. A region of specific interest is the electrode and, in particular, the heterogeneous and porous structure. The present paper is a review of studies that use x-ray tomography to characterise electrode structure, at both the cell and microstructure scales. At the cell level, x-ray tomography is used to investigate macroscopic design parameters, such as anode and cathode thicknesses, packing density and alignment of assembled cells, as well as to visualise any macroscopic structural defects, such as islanding. At the microstructure level, x-ray tomography allows for quantitative analysis of electrode structures to ascertain parameters such as particle size, tortuosity and volume fraction. The paper also explores different techniques that have been used across the field, from ex-situ, in-situ and operando techniques, to multimodal imaging methods, tomography informed design and results informed imaging.
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Published date: 28 May 2021
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Funding Information:
The authors of this work would like to thank the EPSRC’s Centre for Doctoral Training (CDT), United Kingdom in Energy Storage and its Applications [grant ref: EP/R021295/1 ] for its financial support.
Publisher Copyright:
© 2021 The Authors
Keywords:
Li-ion battery, Porous electrode, Review, X-ray tomography
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Local EPrints ID: 449599
URI: http://eprints.soton.ac.uk/id/eprint/449599
ISSN: 2352-4847
PURE UUID: c6acdf94-068b-4a1f-aa2a-a04b282ad7f1
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Date deposited: 08 Jun 2021 16:32
Last modified: 05 Jun 2024 18:34
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Author:
James Le Houx
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