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An urchin-like graphite-based anode material for lithium ion batteries

Authors :
Li, Xinlu
Yoon, Seong-Ho
Du, Kun
Zhang, Yuxin
Huang, Jiamu
Kang, Feiyu
Source :
Electrochimica Acta. Jul2010, Vol. 55 Issue 19, p5519-5522. 4p.
Publication Year :
2010

Abstract

Abstract: In situ preparation of carbon nanotubes on the surface of spherical graphite particles is made by chemical vapor deposition, resulting in an “urchin-like” hybrid material. TEM and SEM images show that carbon nanotubes are herringbone with turbulent layered structure, less than 100nm in diameter and several micrometers in length in the average. The hybrid''s use as an anode material in lithium ion batteries is examined using constant current charge–discharge tests, which prove that carbon nanotubes oriented on the surface effectively improve the reversible capacity. Cyclic voltammogram shows that there is no cathodic peak for the reaction of the Fe catalyst with Li+ in the charge-charge process in 0.0–1.6V vs. Li/Li+ potential range. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
00134686
Volume :
55
Issue :
19
Database :
Academic Search Index
Journal :
Electrochimica Acta
Publication Type :
Academic Journal
Accession number :
51437288
Full Text :
https://doi.org/10.1016/j.electacta.2010.04.101