Carbonaceous material and a cell using the same

Details Carbonaceous material and a cell using the same Carbonaceous material and a cell using the same

1993-01-21

1994-09-20

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429218, 429232, 423445R, H01M 460, H01M 458, C01B 3102

Patent

active

053488180

ABSTRACT:
The present invention provides a carbonaceous material suitable for an electrode of a secondary cell. The carbonaceous material has a specific surface area by BET method of at least 10 m.sup.2 /g and a nitrogen/carbon atom weight ratio of 0.15 to 0.01, and is obtained by heat-treating a polyimide polymer having repeating units represented by: ##STR1## wherein R represents a 4 valent aromatic residue having at least one aromatic ring, of which each 2 valences are bonded with an adjacent carbon atom in the aromatic ring, R' represents a divalent aromatic residue having 1 to 4 aromatic rings and n is an integer of at least 2. The present invention also provides a secondary cell using the above mentioned carbonaceous material as electrode.

REFERENCES:
Sumitomo, Patent Abstracts of Japan, No. 61-277165 (May 2, 1987).
Kanebo, Patent Abstracts of Japan, No. 63-218158 (Jan. 10, 1989).
Kanebo, Patent Abstracts of Japan, No. 63-218160 (Jan. 10, 1989).
Kanebo, Patent Abstracts of Japan, No. 01-220372 (Nov. 29, 1989).
Matsushita, Patent Abstracts of Japan No. 63-218161 (Jan. 10, 1989).
Doege et al., Chemical Abstracts, 114:210626g (Jun. 3, 1991).
Bruck, Chemical Abstracts, 65:18759e (Dec. 5, 1966).
Simanovich et al., Chemical Abstracts, 111:174768g (Nov. 13, 1989).
Bruck, Chemical Abstracts, 63:14995b (Nov. 22, 1965).
Heacock et al., Chemical Abstracts, 63:742f (Jul. 5, 1965).

Affiliated with

Also associated with

Rating

Carbonaceous material and a cell using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbonaceous material and a cell using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbonaceous material and a cell using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2429749