Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6602443 | Electrochimica Acta | 2018 | 8 Pages |
Abstract
The preparation and the structural, morphological and electrochemical characterization of a Silicon/V2O5 nanosheets composite (Si@V2O5), as an active anode material for Li-ion batteries, are here reported. The nanocomposite material, aimed at mitigating the morphological instability issues commonly plaguing Si-based anodes, is prepared by a H2O2-based low-impact synthesis, while the electrode processing involves the use of Polyacrylic Acid (PAA) binder. The electrolyte formulation is optimized as well, by employing Vinylene Carbonate (VC) additive, in order to maximize cycling stability and performance. Preliminary results report specific capacities of 932â¯mAhgâ1 and 759â¯mAhgâ1 after 50 cycles at 500â¯mAâ¯gâ1 and 1000â¯mAâ¯gâ1, respectively. The Si@V2O5 electrode also shows remarkable rate capability performance.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
G. Carbonari, F. Maroni, A. Birrozzi, R. Tossici, F. Croce, F. Nobili,