Abstract
The electrochemical performance of V2O3 as an anode in lithium-ion batteries (LIBs) is quite good but it is very difficult to compete with Si/C composites. Because its intrinsic electrical conductivity and volumetric expansion during charging/discharging limit its applications as an anode in LIBs. In this study, microspherical V2O3 anode samples were prepared using a facile synthesis procedure such as the solvothermal method and heating process. Furthermore, a composite sample comprising V2O3 and carbon (V2O3/C) could be selectively prepared in the absence of ethanol washing and centrifugation. In particular, compared to a commercial V2O3 and V2O3, the V2O3/C anode exhibited enhanced electrochemical performance, i.e., rate performance (230 mAh g−1 at 1.0 A g−1, 180 mAh g−1 at 2.0 A g−1), cycling properties (508 mAh g−1 at 0.1 A g−1 for 100 cycles), and high retention (~100%).
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