Title:
CARBON POWDER HAVING ENHANCED ELECTRICAL CHARACTERISTICS AND USE OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2001/006583
Kind Code:
A1
Abstract:
A carbon powder being enhanced in adhesion to an electrode and/or electrophoretic property, characterized as containing one or more of sulfur, nitrogen, boron, phosphorus, and fluorine in an amount of 0.1 to 2 wt %, as well as 1 to 20 wt % of oxygen. A secondary cell containing the surface-modified carbon powder or a secondary cell activating agent comprising the carbon powder added thereto has a long cell life, and the addition of this carbon powder to a secondary cell having lost the ability for charge/discharge allows the regeneration fo the secondary cell.
Inventors:
KANDA EIKO (JP)
IMAI HIROYUKI (JP)
SHIRAISHI SHINYA (JP)
IMAI HIROYUKI (JP)
SHIRAISHI SHINYA (JP)
Application Number:
PCT/JP2000/004590
Publication Date:
January 25, 2001
Filing Date:
July 10, 2000
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
KANDA EIKO (JP)
IMAI HIROYUKI (JP)
SHIRAISHI SHINYA (JP)
KANDA EIKO (JP)
IMAI HIROYUKI (JP)
SHIRAISHI SHINYA (JP)
International Classes:
C01B31/02; H01M4/62; H01M10/42; (IPC1-7): H01M4/62
Foreign References:
| EP0848441A1 | 1998-06-17 | |||
| US5677075A | 1997-10-14 | |||
| JPH1081889A | 1998-03-31 |
Other References:
J.B. BONE, A. BOETTO: "Carbon black", TOKYO: KODANSHA, 1 May 1978 (1978-05-01), pages 113 - 115, XP002933261
See also references of EP 1117141A4
See also references of EP 1117141A4
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