Short-range ordering in a battery electrode, the ‘cation-disordered’ rocksalt Li1.25Nb0.25Mn0.5O2

Short-range ordering in a battery electrode, the ‘cation-disordered’ rocksalt Li1.25Nb0.25Mn0.5O2

Cation order, with a local structure related to γ-LiFeO2, is observed in the nominally cation-disordered Li-excess rocksalt Li1.25Nb0.25Mn0.5O2via X-ray diffraction, neutron pair distribution function analysis, magnetic susceptibility and NMR spectroscopy. The correlation length of ordering depends...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2019, Vol.55 (61), p.9027-9030
Hauptverfasser: Jones, Michael A, Reeves, Philip J, Seymour, Ieuan D, Cliffe, Matthew J, Dutton, Siân E, Grey, Clare P
Format: Artikel
Sprache:eng
Schlagworte:
Cations
Distribution functions
Electrochemistry
Function analysis
Magnetic permeability
NMR spectroscopy
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Beschreibung
Zusammenfassung:Cation order, with a local structure related to γ-LiFeO2, is observed in the nominally cation-disordered Li-excess rocksalt Li1.25Nb0.25Mn0.5O2via X-ray diffraction, neutron pair distribution function analysis, magnetic susceptibility and NMR spectroscopy. The correlation length of ordering depends on synthesis conditions and has implications for the electrochemistry of these phases.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc04250d