Patent ID: 7842273

Claim:
A process for the preparation of a material composed of pure γ-LiV 2 O 5 or of γ-LiV 2 O 5 as an intimate mixture with carbon comprising preparing a composition formed of carbon and of precursors of Li and of V and subjecting said composition to a heat treatment, wherein: the composition is prepared by bringing carbon, α-V 2 O 5 and a Li precursor into contact in amounts such that the molar ratio of the [α-V 2 O 5 ]/[Li] is between 0.95 and 1.05 and the carbon is in excess of at least 25% with respect to the stoichiometry; and the heat treatment is carried out in two stages: a first stage at a temperature of between 90° C. and 150° C. for a time of 1 to 12 hours and a second stage under a nitrogen or argon atmosphere or under vacuum at a temperature of between 420° C. and 500° C. for a time of between 10 min and 1 hour.