CONTEXT

In order to be able to feed micro-electronics circuits for long periods, it is necessary to increase the density of energy of the microbatteries and consequently their capacity.

Many studies are therefore currently carried out on thin layer positive electrode materials.

Vanadium(V) oxide (V[2]O[5]), and more generally oxides of transition metals having a lamellar structure, arouse intensive research works, since they are more promising than the sulphides because of their greater chemical stability, higher potentials as compared to the Li/Li+ redox cell and larger discharge capacities.

There is still a need for thin layers positive electrodes for use in microbatteries presenting an improved behaviour in cycling.