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Performance of Expanded Graphite as Anode Materials for High Power Li-ion Secondary Batteries

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2010, 11(4), pp.343-346
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General

박도연 1 Yun-Soo Lim 1 Myung-Soo Kim 1

1명지대학교

Candidate

ABSTRACT

The various expanded graphites (EGs) was prepared and applied as anode material for high power Li-ion secondary battery (LIB). By changing the processing conditions of EG, a series of EG with different structure were produced, showing the changed electrochemical properties. The charge-discharge test showed that the initial reversible capacity of EG anodes prepared at the suitable conditions was over 400 mAh/g and the charge capacity at 5 C-rate was 83.2 mAh/g. These values demonstrated the much improved electrochemical properties as compared with those for the graphite anode of 360 mAh/g and 19.4 mAh/g, respectively, showing the possibility of EG anode materials for high power LIB.

Citation status

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