Patent ID: 8435484

Claim:
A process for the preparation of an oxide Li 1+α V 3 O 8 (0≦α≦0.25) comprising preparing a precursor gel and subjecting said gel to a heat treatment, wherein: the precursor gel is prepared by bringing α-V 2 O 5 and a Li precursor into contact in a reaction medium in amounts such that the ratio of the [V 2 O 5 ]/[Li] concentrations is between 1.15 and 1.5; and the heat treatment is carried out in two stages: a first stage under air at a temperature of between 80° C. and 150° C. for a time of 3 hours to 15 days and a second stage under a nitrogen or argon atmosphere at a temperature of between 250° C. and 350° C. for a time of between 4 min and 1 hour.