Abstract
Vanadium oxynitride/vanadium trioxide nanoparticle anchored on carbon (VN0.95O0.07/V2O3@C) was prepared by one step of the annealed mixture of NH4VO3 and dicyandiamide in the inert gas. As a new type of anode material for lithium-ion batteries, VN0.95O0.07/V2O3@C displays a higher specific capacity, excellent cyclic ability and rate capability. VN0.95O0.07/V2O3@C anode presents charge capacity of 800.8 mAh g−1 at the current rate of 100 mA g−1 after 100 cycles. Even at high current rate of 1.5 A g−1, VN0.95O0.07/V2O3@C anode electrode shows high initial charge capacity of 379.4 mAh g−1 and the reversible specific capacity of 392.1 mAh g−1 after 300 cycles. The results demonstrate that VN0.95O0.07/V2O3@C based materials will be a promising candidate of anode material for LIBs after further majorization of synthesis and components. This work provides a favorable way to develop high energy and stable electrode materials for Li-ion battery.
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