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Title:
MANUFACTURING METHOD OF CARBONACEOUS ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE CARBONACEOUS ANODE MATERIAL
Document Type and Number:
Japanese Patent JP2003132888
Kind Code:
A
Abstract:

To provide a manufacturing method of a carbonaceous anode material for a secondary battery having advantage in a high bulk density, minimum use of a binder having no direct contribution to a charge-discharge capacity, and a rapid charge-discharge characteristic, and a lithium secondary battery using the carbonaceous anode material produced by the manufacturing method.

The manufacturing method of the carbonaceous anode material for the secondary battery comprises a metal or semimetal oxide powder of 1-25 pts.wt. is added to and mixed with the carbonaceous material substantially having no softening point of 100 pts.wt., a resultant mixture is calcined in a nonoxidizing atmosphere, further graphitization is carried out at 2800-3200°C to obtain the carbonaceous anode material.


Inventors:
KAWAI TAKANOBU
URANO AKIRA
WAKIZAKA TAKASHI
MOTOKAWA KENICHI
WAKAYAMA MINORU
Application Number:
JP2001331300A
Publication Date:
May 09, 2003
Filing Date:
October 29, 2001
Export Citation:
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Assignee:
NIPPON CARBON CO LTD
International Classes:
H01M10/05; H01M4/587; (IPC1-7): H01M4/58; H01M4/02; H01M10/40
Attorney, Agent or Firm:
Tetsuya Ito