Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 583, Issue -, Pages 351-356Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.08.124
Keywords
Lithium trivanadate; Silver nanoparticles; Nanobelt; High-rate; Rechargeable lithium batteries
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Funding
- National High Technology Research and Development Program of China (863 Program) [2013AA110106]
- Creative Research Group of National Natural Science Foundation of China [50721003]
- Lie-Ying Program of Central South University
- Fundamental Research Funds for the Central Universities of Central South University [2013zzts181]
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Ag nanoparticles anchored LiV3O8 nanobelts have been synthesized via a facile sol-gel route. The as-prepared thin LiV3O8/Ag composite nanobelts have a thickness of several nanometers and a length of dozens of micrometers. The EDX result confirms the existence of Ag element in LVO/Ag composite and the uniform dispersion of Ag nanoparticle among the LVO/Ag composite. When it is evaluated as a cathode material for lithium batteries, the LiV3O8/Ag composite nanobelts exhibit excellent rate capability and long-term cyclic stability. A maximum specific discharge capacity of 247, 214, 175, 149, 124, 113 and 103 mA h g(-1) is achieved at the current densities of 50, 100, 300, 500, 1000, 1500 and 2000 mA g(-1), respectively. It exhibits no capacity fading after 250 cycles at the current density of 1 A g(-1). The superior electrochemical performance indicates their promising application as cathode material in lithium ion batteries. (C) 2013 Elsevier B.V. All rights reserved.
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