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

Xinlu Li, Seong Ho Yoon, Kun Du, Yuxin Zhang, Jiamu Huang, Feiyu Kang

Research output: Contribution to journalArticle

19 Citations (Scopus)

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 100 nm 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 0.0-1.6 V vs. Li/Li+ potential range.

Original languageEnglish
Pages (from-to)5519-5522
Number of pages4
JournalElectrochimica Acta
Volume55
Issue number19
DOIs
Publication statusPublished - Jul 30 2010

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

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