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Carbon Powders Prepared in Rf Thermal Plasma and Their Application to Anode of Lithium Secondary Baltery

Published online by Cambridge University Press:  10 February 2011

M. Kurihara ,
S. Uchida ,
S. Maruyama ,
T. Takizawa ,
Y Moriyoshi ,
T Ishigaki  and
Y Sato
M. Kurihara
Affiliation:
TDK Coporation, R&D Center, 2–15–7 Higashi-Ohwada, Ichikawa, Chiba 272-8558, Japan
S. Uchida
Affiliation:
TDK Coporation, R&D Center, 2–15–7 Higashi-Ohwada, Ichikawa, Chiba 272-8558, Japan
S. Maruyama
Affiliation:
TDK Coporation, R&D Center, 2–15–7 Higashi-Ohwada, Ichikawa, Chiba 272-8558, Japan
T. Takizawa
Affiliation:
Hosei University, Department of Materials Science, 3-7-2 Kajino-cho, Koganei, Tokyo 184-0002, Japan
Y Moriyoshi
Affiliation:
Hosei University, Department of Materials Science, 3-7-2 Kajino-cho, Koganei, Tokyo 184-0002, Japan
T Ishigaki
Affiliation:
NIRIM, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Y Sato
Affiliation:
NIRIM, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Abstract

Carbon powders prepared by the RF thermal plasma treatment of phenolic resin were examined for the anode materials of lithium secondary battery. Modification of these carbon powders in chemical composition, crystal structure and surface morphology was characteristics of the thermal plasma treatment The treated powders showed the unique microstructure. TEM observation showed the non-uniform distribution of graphitized and amorphous areas in the particles. The electrochemical measurements as an anode for lithium secondary battery were examined in IM LiClO4 in a 50:50 mixture of ethylene carbonate and diethyl carbonate. While the electrochemical extraction of lithium ion from plasma-prepared carbon powders proceeded in three stages, the electrochemical insertion looked to proceed in two stages. These electrochemical features can be associated with the uncommon microstructure characteristics.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 548: Symposia EE – Solid State Ionics V , 1998 , 21
Copyright
Copyright © Materials Research Society 1999

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References

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