aKey Laboratory for Functional Materials and Green Synthesis of the Ministry of Education, Hubei University, Wuhan 430062, China
bCollege of Chemistry and Chemical Engineering, Anshun University, Anshun 561000, China
cInstitute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW 2522, Australia
Received 7 October 2013
Accepted 27 November 2013
Available online 1 December 2013
Highlights
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A VOx/C composite synthesized by electrospinning method takes on morphology of nanofiber.
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The VOx/C composite mainly consists of VO2 and V2O5 and carbon.
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The VOx/C composite had high reversible specific capacity as an anode material.
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The VOx/C composite behaved higher rate capacity and excellent cycle performance.
Abstract
A VOx/C nanofiber composite has been synthesized by using the electrospinning method and studied as an anode material for lithium ion batteries. The VOx/C nanofibers mainly are composed of VO2, V2O5, and carbon. The VOx/C nanofibers exhibited excellent electrochemical performance. A high discharge capacity of 850 mA h g−1 can be retained after 100 cycles at the current density of 40 mA g−1. A discharge capacity of 550 mA h g−1 still can be delivered after 100 cycles, when the current density is increased to 1000 mA g−1.
