Flash Synthesis of High‐Performance Sub‐Micron Low‐Disorder LiNi <sub> <i>x</i> </sub> Co <sub> <i>y</i> </sub> Al <sub> <i>z</i> </sub> O <sub>2</sub> Cathode Single Crystals

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. LiNi x Co y Al z O 2 (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 &gt;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 Ni 2+ −Li + antisite defects are minimized in these materials, which is critical to their electrochemical performance.

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Publication Details

Journal
Advanced Energy and Sustainability Research
Published
2025-09-23
DOI
https://doi.org/10.1002/aesr.202500149
Primary Topic
Advancements in Battery Materials
Type
article
Field-Weighted Citation Impact
0.00

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article

Flash Synthesis of High‐Performance Sub‐Micron Low‐Disorder LiNi x Co y Al z O 2 Cathode Single Crystals

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Advanced Energy and Sustainability Research
Advancements in Battery Materials
article

Flash Synthesis of High‐Performance Sub‐Micron Low‐Disorder LiNi x Co y Al z O 2 Cathode Single Crystals

Matthew G. Tucker, Helen Y. Playford, Thomas E. Ashton, Yang Xu, Alexander J. E. Rettie, Jawwad A. Darr, Michael J. Johnson, Shutao Wang, Jiacheng Wang, Callum J Chisnall
article en

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. LiNi x Co y Al z O 2 (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 &gt;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 Ni 2+ −Li + antisite defects are minimized in these materials, which is critical to their electrochemical performance.

Advanced Energy and Sustainability ResearchVol. 7(1)
Rutherford Appleton Laboratory (GB), Oak Ridge National Laboratory (US), Discovery Centre (CA), The Gordon Hospital (GB), Drug Discovery Laboratory (Norway) (NO), University College London (GB)
UK Research and Innovation, University College London, Engineering and Physical Sciences Research Council
Openalex Percentile: Top 75%
Advancements in Battery Materials
DOIOpen Access PDFOpenAlex
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