Mirza, Mateen;
Du, Wenjia;
Rasha, Lara;
Wilcock, Steven;
Jones, Arfon H;
Shearing, Paul R;
Brett, Dan JL;
(2023)
Electrochemical recovery of lithium-ion battery materials from molten salts by microstructural characterization using X-ray imaging.
Cell Reports Physical Science
, Article 101333. 10.1016/j.xcrp.2023.101333.
(In press).
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Abstract
Recycling spent lithium-ion batteries (LiBs) guarantees the conservation of important metal resources by reducing demands on raw supply and offsetting the energy and environmental costs associated with its manufacture. Employing a molten salt as a solvent for extraction affords a much greener and simpler route to metal recovery by electrochemical means. The current mechanistic understanding of the electrochemical recovery of metals in molten salts needs to be improved for the process to be optimized. X-ray computed tomography offers a non-destructive approach for 3D microstructure visualization and subsequent quantification. Here, we study the electrochemical deposition of recovered cobalt metal from lithium cobalt oxide, LiCoO2 in LiCl-KCl eutectic (LKE). This diagnostic approach has been applied to LiCoO2-LKE samples before and after electrolysis at 450°C, yielding key insights into the morphological evolution of product formation.
| Type: | Article |
|---|---|
| Title: | Electrochemical recovery of lithium-ion battery materials from molten salts by microstructural characterization using X-ray imaging |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.xcrp.2023.101333 |
| Publisher version: | https://doi.org/10.1016/j.xcrp.2023.101333 |
| Language: | English |
| Additional information: | ©2023 The Author(s). This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | molten salts, Li-ion batteries, X-ray tomographic imaging, microstructure, cobalt, recycling and recovery |
| 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-pp.ucl.ac.uk/id/eprint/10166742 |
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