Title:
NEGATIVE ELECTRODE MATERIAL, MANUFACTURING METHOD, AND NONAQUEOUS SECONDARY BATTERY USING THE SAME
Document Type and Number:
Japanese Patent JP2004095201
Kind Code:
A
Abstract:
To provide a negative electrode material, a manufacturing method and a nonaqueous secondary battery using the negative electrode material of a low specific surface area restrained from a pore structural change even if grinding a polycyclic aromatic hydrocarbon material in sufficiently fine diameters.
In the negative electrode material formed of polycyclic aromatic hydrocarbon obtained by thermally reacting a raw material mainly composed of pitch, the average grain size of the material is 10 μm or less, the element ratio of hydrogen/carbon is in a range of 0.50 to 0.05, the specific surface area by a BET method is in a range of 0.1 to 50 m2/g, and the amount of pores in a range of 20 to 50 in a BJH method is 1×10-3 cc/g or less.
Inventors:
Kusano, Teruhiko
Yamazaki, Satoshi
Haga, Takeshi
Satake, Hisashi
Seiryu O.
Yada, Shizukuni
Yamazaki, Satoshi
Haga, Takeshi
Satake, Hisashi
Seiryu O.
Yada, Shizukuni
Application Number:
JP2002000250833
Publication Date:
March 25, 2004
Filing Date:
August 29, 2002
Export Citation:
Assignee:
ELECTRIC POWER DEV CO LTD
International Classes:
H01M10/40; H01M4/02; H01M4/58; (IPC1-7): H01M4/58; H01M4/02; H01M10/40
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