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Title:
NEGATIVE ELECTRODE AND NONAQUEOUS SECONDARY BATTERY USING THE SAME
Document Type and Number:
Japanese Patent JP2004095203
Kind Code:
A
Abstract:

To provide a negative electrode and a nonaqueous secondary battery using the negative electrode improving charge receiving property at the negative electrode from the viewpoint of battery design and causing little degradation of capacity by cycle repetition even to the charge of about 8-hour rate.

This negative electrode for the nonaqueous secondary battery is formed by molding a negative electrode material formed of polycyclic aromatic hydrocarbon obtained by thermally reacting a raw material mainly composed of at least pitch, and a conductive material using a binder. I. The element ratio of hydrogen/carbon in the polycyclic aromatic hydrocarbon is in a range of 0.50 to 0.05, and the specific surface area of the negative electrode material by a BET method is in a range of 0.1 to 50 m2/g. II. The surface density of the negative electrode material is 6 mg/cm2 or less.


Inventors:
Kusano, Teruhiko
Yamazaki, Satoshi
Haga, Takeshi
Kuriyama, Kazuya
Yada, Shizukuni
Application Number:
JP2002000250835
Publication Date:
March 25, 2004
Filing Date:
August 29, 2002
Export Citation:
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Assignee:
ELECTRIC POWER DEV CO LTD
International Classes:
H01M10/40; H01M4/02; H01M4/58; (IPC1-7): H01M4/02; H01M4/58; H01M10/40