AVS 46th International Symposium
    Topical Conference on Emerging Opportunities and Issues in Nanotubes and Nanoelectronics Friday Sessions
       Session NT+NS+EM+MS-FrM

Invited Paper NT+NS+EM+MS-FrM3
Li Intercalated Carbon Nanotubes Ropes

Friday, October 29, 1999, 9:00 am, Room 6C

Session: Nanotubes: Growth, Characterization and Properties II
Presenter: A. Buldum, University of North Carolina, Chapel Hill
Authors: J. Lu, University of North Carolina, Chapel Hill
J. Zhao, University of North Carolina, Chapel Hill
A. Buldum, University of North Carolina, Chapel Hill
B. Gao, University of North Carolina, Chapel Hill
O. Zhou, University of North Carolina, Chapel Hill
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The electronic and electrochemical properties of Li intercalated single-wall nanotube ropes are studied theoretically using ab initio method@footnote 1@ and experimentally in an electrochemical cell.@footnote 2@ Complete charge transfer is found between Li atoms and nanotubes. The energetic and electrochemical potential of intercalated Li atoms on both the inside and the outside of tubes are investigated. The intercalated ropes are metallic with conduction band resides on C atoms. Both theoretical and experimental studies suggest that it is possible to achieve a Li intercalation density significant larger than that in the graphite, making the Li intercalated nanoropes a promising material for battery applications. @FootnoteText@ @footnote 1@ J. Zhao, A. Buldum, J. P. Lu, to be published. @footnote 2@ B. Gao and O. Zhou, to be published.