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Hollow Structured Li3VO4 Wrapped with Graphene Nanosheets in Situ Prepared by a One-Pot Template-Free Method as an Anode for Lithium-Ion Batteries
journal contribution
posted on 2013-10-09, 00:00 authored by Yi Shi, Jia-Zhao Wang, Shu-Lei Chou, David Wexler, Hui-Jun Li, Kiyoshi Ozawa, Hua-Kun Liu, Yu-Ping WuTo explore good anode materials of
high safety, high reversible
capacity, good cycling, and excellent rate capability, a Li3VO4 microbox with wall thickness of 40 nm was prepared
by a one-pot and template-free in situ hydrothermal method. In addition,
its composite with graphene nanosheets of about six layers of graphene
was achieved. Both of them, especially the Li3VO4/graphene nanosheets composite, show superior electrochemical performance
to the formerly reported vanadium-based anode materials. The composite
shows a reversible capacity of 223 mAh g–1 even
at 20C (1C = 400 mAh g–1). After 500 cycles at 10C
there is no evident capacity fading.