Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 3, Pages 522-525Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.11.051
Keywords
Vanadium oxide; Hydrothermal; Electrospinning; Lithium batteries
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Funding
- National Science Foundation [DMR-0705657]
- US Dept. of Energy
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Nanocrystallites of vanadium pentoxide were synthesized by the hydrothermal treatment of electrospun composite nanofibers. Each crystallite of dimension <= 100 nm was found to be a single crystal of delta-phase HxV4O10 center dot nH(2)O. The crystallinity and morphology was maintained on heating to 500 degrees C when V2O5 was formed. The electrochemical capacity of the nano-V2O5 in a lithium cell was found to be above 350 mAh/g. The columbic efficiency is close to 100% when small amounts of lithium bis(oxalato)borate is added to the LiPF6 electrolyte. (C) 2008 Elsevier B.V. All rights reserved.
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