Title:
GRAPHITE POWDER, ITS MANUFACTURING METHOD, AND CONDUCTIVE MATERIAL CONSISTING THEREOF FOR BATTERY
Document Type and Number:
Japanese Patent JP2004099355
Kind Code:
A
Abstract:
To provide a graphite powder with high conductivity and high water repellency and suitable for a conductive material for a battery and its manufacturing method.
The graphite powder has a DBP absorption of 80-200mL/100g and satisfies inequality (1): D50/DCP mode diameter ≥ 0.8 (wherein DCP mode diameter is the mode diameter of the centrifugal sedimentation particle diameter in a Stokes region; and D50 is the half-value width of the mode diameter). Preferably, the mean primary particle diameter is 10-100nm; and the DCP mode diameter is 50-500nm. The graphite powder is manufactured preferably by induction heating carbon black to graphitize it.
Inventors:
OCHIAI TSUNEMI
TAKANAGA SHIGEYUKI
TAKANAGA SHIGEYUKI
Application Number:
JP2002261719A
Publication Date:
April 02, 2004
Filing Date:
September 06, 2002
Export Citation:
Assignee:
OCHIAI TSUNEMI
KYUSHU REFRACTORIES
KYUSHU REFRACTORIES
International Classes:
C01B31/04; H01M4/62; H01M4/96; H01M8/02; (IPC1-7): C01B31/04; H01M4/62; H01M4/96; H01M8/02
Attorney, Agent or Firm:
Hirosaburo Mori
Toshio Mori
Shigeki Nakatsugu
Toshio Mori
Shigeki Nakatsugu