Invention Application
- Patent Title: CARBON MATERIAL, PRODUCTION METHOD AND USE THEREOF
- Patent Title (中): 碳材料,生产方法及其用途
-
Application No.: PCT/JP0209672Application Date: 2002-09-20
-
Publication No.: WO03028128A3Publication Date: 2003-09-04
- Inventor: SUDO AKINORI , SOTOWA CHIAKI
- Applicant: SHOWA DENKO KK , SUDO AKINORI , SOTOWA CHIAKI
- Assignee: SHOWA DENKO KK,SUDO AKINORI,SOTOWA CHIAKI
- Current Assignee: SHOWA DENKO KK,SUDO AKINORI,SOTOWA CHIAKI
- Priority: JP2001290775 2001-09-25; JP2001360727 2001-11-27; JP2002120322 2002-04-23
- Main IPC: H01M10/05
- IPC: H01M10/05 ; C01B31/04 ; C04B35/524 ; C04B35/532 ; C09C1/48 ; C09C1/56 ; H01M4/02 ; H01M4/04 ; H01M4/133 ; H01M4/36 ; H01M4/58 ; H01M4/583 ; H01M4/587 ; H01M10/052 ; H01M10/0525 ; H01M10/0566 ; H01M10/0569
Abstract:
A carbon material includes carbon particles having a graphite structure, the particles having a carbonaceous material deposited on at least a portion of the surface thereof, and fibrous carbon. In the carbon material, the carbonaceous material is obtained by subjecting a composition containing a polymer to heat treatment. The fibrous carbon is preferably deposited to the carbon particles through a carbonaceous material obtained by subjecting a composition containing a polymer. As a result, when the carbon material is used as a negative electrode active material for a secondary battery, the electrical conductivity can be improved and large current load enduring characteristics and cycle characteristics can be improved. By coating the carbonaceous material onto the carbon particles having a graphite structure, destruction of the graphite structure by the polyethylene carbonate-based electrolytic solution can be prevented.
Information query