The hybrid polyaniline/V2O5 xerogel and its performance as cathode in rechargeable lithium batteries

We present the synthesis and characterization of the hybrid PAni/V2O5 and i ts performance as cathode in lithium cells. The synthesis was made directly from the V2O5 gel. We observe a direct relationship between the synthesis conditions and the specific charge (Ah/Kg) obtained during the analysis of the material as cathode in lithium battteries. On the other hand, oxygen tr eatments were carried out to increase the oxidation state of the V2O5 in th e hybrid material. The hybrid, once treated in the optimal conditions, show ed great influence over the specific charge. Values as high as 302 Ah/Kg we re obtained at slow discharge rate (C/48) and 200-238 Ah/Kg at discharge ra te of C/12, this values corresponds to the insertion of 2.7 and 2.08 lithiu m ions respectively. These values demonstrate the synergic response between PAni and the V2O5 oxide material.