Journal
MATERIALS LETTERS
Volume 116, Issue -, Pages 389-392Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2013.11.059
Keywords
Silver vanadium oxides; Nanocrystalline materials; Functional; Electrical properties; Energy storage and conversion
Funding
- National High Technology Research and Development Program of China (863 Program) [2013AA110106]
- Creative Research Group of National Natural Science Foundation of China [50721003]
- Fundamental Research Funds for the Central Universities of Central South University [2013zzts181]
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Novel channel-structured beta-Ag0.33V2O5 nanorods have been successfully synthesized via a simple hydrothermal process. The channels are along the axis of beta-Ag0.33V2O5 nanorods and the channels are about 30 nm in width. As cathode material for lithium batteries, it exhibits higher specific discharge capacity and improved cyclic stability than other silver vanadium oxides. High initial specific discharge capacity of 288 mA h g(-1) can be obtained at 20 mA g(-1) in the voltage range of 2.0-3.6 V (vs. Li/Li+). A maximum high specific discharge capacity of 332 mA h g(-1) can be reached at 20 mA g(-1) within 1.5-4.0 V (vs. Li/Li+). The good electrochemical performances are ascribed to the novel channel-structure and good structural reversibility upon cycling. (C) 2013 Elsevier B.V. All rights reserved.
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