Spheroidization Modification of Artificial Graphite Applied as Anode Materials for High Rate Lithium Ion Batteries

Abstract:

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Rate capability tests showed that artificial graphite after spheroidization treatment exhibited a higher capacity in the higher C-rate region (2~10C) at a 0.1 C rate charge and variable C-rates discharge. Artificial graphite after spheroidization treatment exhibited a higher capacity in the higher C-rate region (0.5~9 C) at the same C-rate charge and discharge. These results show that artificial graphite after spheroidization treatment has a large amount of isotropic microstructures that lithium ions can intercalate into the graphene layers from all directions via edge-plane surfaces. Therefore, the artificial graphite is more suitable than natural graphite for the anode materials of high rate batteries.

Info:

Periodical:

Advanced Materials Research (Volumes 201-203)

Edited by:

Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang

Pages:

421-424

DOI:

10.4028/www.scientific.net/AMR.201-203.421

Citation:

Y. S. Wu et al., "Spheroidization Modification of Artificial Graphite Applied as Anode Materials for High Rate Lithium Ion Batteries", Advanced Materials Research, Vols. 201-203, pp. 421-424, 2011

Online since:

February 2011

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Price:

$35.00

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