Electrochemical Performance of Carbon Nanotube and Graphite Composite Materials

Abstract

Abstract: When natural graphite(NG) is doped with different ratios of carbon nanotube(CNT),a composite material formed by nano-C and graphite-C was obtained. The measurements show that the complex with 10% CNT(in mass fraction) possesses the best electrochemical performance. Undergoing charge/discharge cycles for 20 times,the charge capacity of this material is obviously improved,15.9% more than that of pure graphite without CNT. Due to the mid-hollow structure and anti-collapse property for CNT,this composite material would increase charge/discharge capacity and stable cycle property.

Key words: Lithium ion battery, Nano-material, Graphite, Composite material

CLC Number:

O646.21

TrendMD:

ZHOU De-Feng, ZHAO Yan-Ling, MA Yue, HAO Jie, XIE Hai-Ming, WANG Rong-Shun. Electrochemical Performance of Carbon Nanotube and Graphite Composite Materials[J]. Chem. J. Chinese Universities, 2004, 25(6): 1120.

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Electrochemical Performance of Carbon Nanotube and Graphite Composite Materials

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