Abstract

The insertion of lithium in vanadium pentoxide at high temperature is followed both by Xray diffraction and 7 Li NMR studies. A correlation between the lithium sites found by structure determination and the isotropic chemical shifts is established and a mechanism of the lithium insertion proposed. Calculations of the valence of the vanadium atoms and the simulation of NMR spectra allows to localise the V4 + in the highest lithium rate phases

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