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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Electrochemical lithiation-induced formation of disordered rocksalt †
AU - Leesmith, Matthew J. A.
AU - Halcovitch, Nathan R.
AU - Hua, Xiao
PY - 2023/7/24
Y1 - 2023/7/24
N2 - Cation disordered rocksalt (DRX) materials are promising electrode alternatives for next-generation battery technology due to their superior performances concerning capacity and rate capability. These materials are usually prepared via heat treatment or mechanochemical synthesis. Recently, several cation DRX oxides with desirable cycling behaviours have been prepared through electrochemical lithiation of a series of binary metal oxides that have a non-fcc oxygen sublattice. Capitalising on these findings, we strategically investigated two Mn oxides with unique oxygen structures. Through an analysis combining X-ray diffraction and pair distribution function techniques, an electrochemically active cation DRX phase was identified in both oxides upon electrochemical lithiation. Jointly with the earlier reports, our new findings constitute empirical evidence pointing to a general principle that underpins the electrochemical DRX transformation, opening up new opportunities for the development of higher energy density batteries.
AB - Cation disordered rocksalt (DRX) materials are promising electrode alternatives for next-generation battery technology due to their superior performances concerning capacity and rate capability. These materials are usually prepared via heat treatment or mechanochemical synthesis. Recently, several cation DRX oxides with desirable cycling behaviours have been prepared through electrochemical lithiation of a series of binary metal oxides that have a non-fcc oxygen sublattice. Capitalising on these findings, we strategically investigated two Mn oxides with unique oxygen structures. Through an analysis combining X-ray diffraction and pair distribution function techniques, an electrochemically active cation DRX phase was identified in both oxides upon electrochemical lithiation. Jointly with the earlier reports, our new findings constitute empirical evidence pointing to a general principle that underpins the electrochemical DRX transformation, opening up new opportunities for the development of higher energy density batteries.
U2 - 10.1039/d3ta01740k
DO - 10.1039/d3ta01740k
M3 - Journal article
VL - 11
SP - 17027
EP - 17034
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 32
ER -