Mirza, M;
Du, W;
Rasha, L;
Iacoviello, F;
Neville, TP;
Wilcock, S;
Jones, AH;
... Brett, DJL; + view all
(2024)
Following the electrochemical recovery of lithium-ion battery materials from molten salts using operando X-ray imaging.
Materials Today
, 80
pp. 226-239.
10.1016/j.mattod.2024.08.023.
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Abstract
The creation of a circular economy is seen as one of the key challenges in recycling spent Li-ion batteries and would vastly diminish pressures faced in the initial extraction stage of the life cycle. Molten salts (MS) possess a set of excellent electrochemical properties and have been used to recycle metals and non-metals in the battery, metallurgical, nuclear and planetary science sectors. However, an in-depth and clear visual understanding of the electrochemical reduction process is still lacking. Here, we have overcome this challenge by developing a bespoke, miniaturised electrochemical cell enabling real-time X-ray imaging studies. A combination of X-ray radiography and tomography provide an opportunity to non-destructively reveal detailed microstructural evaluation of the electrochemical cell during the pyro-chemical process. Moreover, we have found that significant amounts of CO/CO2 accumulated at the anode surface may lead to undesired operational consequences.
| Type: | Article |
|---|---|
| Title: | Following the electrochemical recovery of lithium-ion battery materials from molten salts using operando X-ray imaging |
| DOI: | 10.1016/j.mattod.2024.08.023 |
| Publisher version: | http://dx.doi.org/10.1016/j.mattod.2024.08.023 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Molten Salts, Recovering Li-ion batteries, Cobalt, Microstructure, Operando X-ray radiography, X-ray computed tomography |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10198403 |
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