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Vanadium Oxide-Carbon Nanotube Composite Electrodes for Use in Secondary Lithium Batteries

Vanadium Oxide-Carbon Nanotube Composite Electrodes for Use in Secondary Lithium Batteries Single-wall carbon nanotubes were used to form the electronically conducting network in lithium intercalation electrodes that incorporated vanadium oxide aerogels as the active material. Sol-gel methods were developed which integrated the nanotubes with aerogel synthesis. The similarity in morphology and dimensional scale for the nanotubes and ribbons enabled excellent electrical contact to be made between the two phases without seriously affecting the aerogel nanostructure. Intimate contact was established between the two phases at the nanodimensional level while the high pore volume of the aerogel provided electrolyte access throughout the composite material. The electrodes exhibited specific capacities in excess of 400 mAh/g at high discharge rates and retained this level of capacity on cycling. © 2001 The Electrochemical Society. All rights reserved. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Electrochemical Society IOP Publishing

Vanadium Oxide-Carbon Nanotube Composite Electrodes for Use in Secondary Lithium Batteries

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References (34)

Copyright
Copyright © 2001 ECS - The Electrochemical Society
ISSN
0013-4651
eISSN
1945-7111
DOI
10.1149/1.1425791
Publisher site
See Article on Publisher Site

Abstract

Single-wall carbon nanotubes were used to form the electronically conducting network in lithium intercalation electrodes that incorporated vanadium oxide aerogels as the active material. Sol-gel methods were developed which integrated the nanotubes with aerogel synthesis. The similarity in morphology and dimensional scale for the nanotubes and ribbons enabled excellent electrical contact to be made between the two phases without seriously affecting the aerogel nanostructure. Intimate contact was established between the two phases at the nanodimensional level while the high pore volume of the aerogel provided electrolyte access throughout the composite material. The electrodes exhibited specific capacities in excess of 400 mAh/g at high discharge rates and retained this level of capacity on cycling. © 2001 The Electrochemical Society. All rights reserved.

Journal

Journal of the Electrochemical SocietyIOP Publishing

Published: Dec 3, 2001

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