Ashton, Thomas E;
Wang, Shutao;
Johnson, Michael J;
Chisnall, Callum;
Tucker, Matthew G;
Playford, Helen;
Rettie, Alexander JE;
... Darr, Jawwad A; + view all
(2025)
Flash Synthesis of High-Performance Sub-Micron
Low-Disorder LiNixCoyAlzO2 Cathode Single Crystals.
Advanced Energy and Sustainability Research
, Article 2500149. 10.1002/aesr.202500149.
(In press).
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Abstract
A rapid solid-state flash heat and quench (FHQ) synthesis approach has been used to facilitate the rapid formation of layered NCA Li-ion cathodes with low structural defects. LiNixCoyAlzO2 (NCA) materials prepared by FHQ reveal impressive gravimetric capacity at C/10 and 10C discharge rates (195 and 150 mAh g−1, respectively) after a few minutes of heating a co-precipitate mixture with LiOH, providing >95% reduction in energy needed for heat-treatment versus conventional solid state synthesis routes. Combined X-ray diffraction, neutron scattering with pair-distribution-function analysis, and X-ray absorption spectroscopy for a range of heat-treated samples are used to identify the point at which Ni2+−Li+ antisite defects are minimized in these materials, which is critical to their electrochemical performance.
| Type: | Article |
|---|---|
| Title: | Flash Synthesis of High-Performance Sub-Micron Low-Disorder LiNixCoyAlzO2 Cathode Single Crystals |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/aesr.202500149 |
| Publisher version: | https://doi.org/10.1002/aesr.202500149 |
| Language: | English |
| Additional information: | Copyright © 2025 The Author(s). Advanced Energy and Sustainability Research published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, https://creativecommons.org/licenses/by/4.0/, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Battery; cathode; flash synthesis; LiNixCoyAlzO2; neutron |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10216412 |
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