Journal
JOURNAL OF POWER SOURCES
Volume 189, Issue 2, Pages 1164-1166Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2009.01.028
Keywords
Vanadium bronze; Hydrothermal; Nano-platelet; Template-free; Electrode materials
Funding
- National Science Foundation of China [20873070]
- National Basic Research Program of China [2009CB623502]
- NCET of Ministry of Education [NCET-07-0448]
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3D flower-like (NH4)(0.83)Na0.43V4O10.0.26H(2)O vanadium bronze nano-platelet clusters are prepared via a facile hydrothermal method. The thickness of the nano-platelet is around 50 nm and the length ranged up to several micrometers. When used as positive electrode in rechargeable lithium battery, this material exhibits good cycle stability at different discharge rates (0.18-0.67C rate) and voltage limits (1.5-3.4V and 2.0-3.4V). The improvement the electrochemical properties of the (NH4)(0.83)Na0.43V4O10.0.26H(2)O might be attributed to the change of the lattice parameters due to the co-intercalation of the superstoichiometric cations (Na+ and NH4+). (C) 2009 Elsevier B.V. All rights reserved.
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