Journal
ELECTROCHIMICA ACTA
Volume 53, Issue 28, Pages 8134-8137Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.06.014
Keywords
Ag2V4O11/Ag; ultra-thin nanobelts; lithium intercalation; electrochemical behavior
Categories
Funding
- National High Technology Research and Development Program [2007AA05Z438]
- Science and Technology Program from Fujian Province [2005HZ01-2-4, 2005HZ-01-2-5, 2007HZ0005-1]
- Fuzhou University
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In this study, ultra-thin nanobelts of Ag2V4O11/Ag were successfully synthesized. The synthesized ultrathin nanobelts of Ag2V4O11/Ag are highly crystalline and the thickness is found to be about 5 nm. A lithium battery using ultra-thin nanobelts of Ag2V4O11/Ag as the active materials of the positive electrode exhibits a high initial discharge capacity of 276 mAh g(-1), corresponding to the formation of LixAg2V4O11 (X = 6). With increased cycling, the electrode made of ultra-thin nanobelts of Ag2V4O11/Ag tends to loose electrochemical activity due to Ag+ ions in the ultra-thin nanobelts of Ag2V4O11 were reduced and new phase was formed. (C) 2008 Elsevier Ltd. All rights reserved.
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