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Open AccessArticle

Facile Synthesis of V2O5 Hollow Spheres as Advanced Cathodes for High-Performance Lithium-Ion Batteries

1
State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi’an 710072, China
2
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Maryam Tabrizian
Materials 2017, 10(1), 77; https://doi.org/10.3390/ma10010077
Received: 14 December 2016 / Revised: 13 January 2017 / Accepted: 16 January 2017 / Published: 18 January 2017
(This article belongs to the Special Issue Materials for Electrochemical Capacitors and Batteries)
Three-dimensional V2O5 hollow structures have been prepared through a simple synthesis strategy combining solvothermal treatment and a subsequent thermal annealing. The V2O5 materials are composed of microspheres 2–3 μm in diameter and with a distinct hollow interior. The as-synthesized V2O5 hollow microspheres, when evaluated as a cathode material for lithium-ion batteries, can deliver a specific capacity as high as 273 mAh·g−1 at 0.2 C. Benefiting from the hollow structures that afford fast electrolyte transport and volume accommodation, the V2O5 cathode also exhibits a superior rate capability and excellent cycling stability. The good Li-ion storage performance demonstrates the great potential of this unique V2O5 hollow material as a high-performance cathode for lithium-ion batteries. View Full-Text
Keywords: vanadium pentoxide; lithium-ion batteries; hollow spheres; cathode vanadium pentoxide; lithium-ion batteries; hollow spheres; cathode
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MDPI and ACS Style

Zhang, X.; Wang, J.-G.; Liu, H.; Liu, H.; Wei, B. Facile Synthesis of V2O5 Hollow Spheres as Advanced Cathodes for High-Performance Lithium-Ion Batteries. Materials 2017, 10, 77.

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