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Article

4D Bragg Edge Tomography of Directional Ice Templated Graphite Electrodes

1
Electrochemical Innovation Lab, Department of Chemical Engineering, University College London (UCL), London WC1E 7JE, UK
2
The Faraday Institution, Quad One, Harwell Science and Innovation Campus, Didcot OX11 0RA, UK
3
Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
4
Rutherford Appleton Laboratory, Science and Technology Facilities Council (STFC), ISIS Facility, Harwell OX11 0QX, UK
5
Space Science Laboratory, University of California, Berkeley, CA 94720, USA
6
Department of Materials, University of Oxford, Oxford OX1 3PH, UK
7
Department of Engineering, King’s College London, London WC2R 2LS, UK
*
Author to whom correspondence should be addressed.
Received: 14 November 2020 / Revised: 5 December 2020 / Accepted: 8 December 2020 / Published: 11 December 2020
(This article belongs to the Special Issue Neutron Imaging)
Bragg edge tomography was carried out on novel, ultra-thick, directional ice templated graphite electrodes for Li-ion battery cells to visualise the distribution of graphite and stable lithiation phases, namely LiC12 and LiC6. The four-dimensional Bragg edge, wavelength-resolved neutron tomography technique allowed the investigation of the crystallographic lithiation states and comparison with the electrode state of charge. The tomographic imaging technique provided insight into the crystallographic changes during de-/lithiation over the electrode thickness by mapping the attenuation curves and Bragg edge parameters with a spatial resolution of approximately 300 µm. This feasibility study was performed on the IMAT beamline at the ISIS pulsed neutron spallation source, UK, and was the first time the 4D Bragg edge tomography method was applied to Li-ion battery electrodes. The utility of the technique was further enhanced by correlation with corresponding X-ray tomography data obtained at the Diamond Light Source, UK. View Full-Text
Keywords: time-of-flight; energy-resolved imaging; Bragg edge imaging; neutron tomography; Li-ion battery; directional ice templated electrode time-of-flight; energy-resolved imaging; Bragg edge imaging; neutron tomography; Li-ion battery; directional ice templated electrode
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MDPI and ACS Style

Ziesche, R.F.; Tremsin, A.S.; Huang, C.; Tan, C.; Grant, P.S.; Storm, M.; Brett, D.J.L.; Shearing, P.R.; Kockelmann, W. 4D Bragg Edge Tomography of Directional Ice Templated Graphite Electrodes. J. Imaging 2020, 6, 136. https://0-doi-org.brum.beds.ac.uk/10.3390/jimaging6120136

AMA Style

Ziesche RF, Tremsin AS, Huang C, Tan C, Grant PS, Storm M, Brett DJL, Shearing PR, Kockelmann W. 4D Bragg Edge Tomography of Directional Ice Templated Graphite Electrodes. Journal of Imaging. 2020; 6(12):136. https://0-doi-org.brum.beds.ac.uk/10.3390/jimaging6120136

Chicago/Turabian Style

Ziesche, Ralf F.; Tremsin, Anton S.; Huang, Chun; Tan, Chun; Grant, Patrick S.; Storm, Malte; Brett, Dan J.L.; Shearing, Paul R.; Kockelmann, Winfried. 2020. "4D Bragg Edge Tomography of Directional Ice Templated Graphite Electrodes" J. Imaging 6, no. 12: 136. https://0-doi-org.brum.beds.ac.uk/10.3390/jimaging6120136

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