Ziesche, RF;
Robinson, JB;
Markötter, H;
Bradbury, R;
Tengattini, A;
Lenoir, N;
Helfen, L;
... Shearing, PR; + view all
(2020)
Editors’ Choice—4D Neutron and X-ray Tomography Studies of High Energy Density Primary Batteries: Part II. Multi-Modal Microscopy of LiSOCl₂ Cells.
Journal of The Electrochemical Society
, 167
(14)
, Article 140509. 10.1149/1945-7111/abbfd9.
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Abstract
The ability to track electrode degradation, both spatially and temporally, is fundamental to understand performance loss during operation of lithium batteries. X-ray computed tomography can be used to follow structural and morphological changes in electrodes; however, the direct detection of electrochemical processes related to metallic lithium is difficult due to the low sensitivity to the element. In this work, 4-dimensional neutron computed tomography, which shows high contrast for lithium, is used to directly quantify the lithium diffusion process in spirally wound Li/SOCl₂ primary cells. The neutron dataset enables the quantification of the lithium transport from the anode and the accumulation inside the SOCl₂ cathode to be locally resolved. Complementarity between the collected neutron and X-ray computed tomographies is shown and by applying both methods in concert we have observed lithium diffusion blocking by the LiCl protection layer and identified all cell components which are difficult to distinguish using one of the methods alone.
| Type: | Article |
|---|---|
| Title: | Editors’ Choice—4D Neutron and X-ray Tomography Studies of High Energy Density Primary Batteries: Part II. Multi-Modal Microscopy of LiSOCl₂ Cells |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1149/1945-7111/abbfd9 |
| Publisher version: | https://doi.org/10.1149/1945-7111/abbfd9 |
| Language: | English |
| Additional information: | © 2020 IOP Publishing. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10112084 |
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