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

Michael A Jones Philip J ReevesIeuan D SeymourMatthew J Cliffe Siân E DuttonClare P Grey

Published in: Chemical communications (Cambridge, England) (2019)

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.

Keyphrases

ion batteries
solid state
ionic liquid
room temperature
high resolution
magnetic resonance imaging
molecularly imprinted
mass spectrometry
carbon nanotubes
crystal structure
contrast enhanced