Carbonaceous electrodes for lithium cells

Details Carbonaceous electrodes for lithium cells Carbonaceous electrodes for lithium cells

1989-05-11

1991-07-02

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, 429198, H01M 1040

Patent

active

050285009

ABSTRACT:
A rechargeble battery of alkali metal, organic electrolyte type has a low surface area particulate carbonaceous electrode intercalable with the alkali metal and experiences little capacity loss upon intercalation of the carbonaceous electrode with the alkali metal. The carbonaeous electrode may include a multi-phase composition including both highly graphitized and less graphitized phases or may include a single phase, highly graphitized composition which has been subjected to interlation of lithium at above about 50.degree. C. Incorporation of an electrically conductive filamentary material such as carbon black intimately interspersed with the carbonaceous composition minimizing capacity loss upon repeated cycling.

REFERENCES:
patent: 4423125 (1983-12-01), Basu
patent: 4615959 (1986-10-01), Hayashi et al.
patent: 4702977 (1987-10-01), Hiratsuka et al.
patent: 4707423 (1987-11-01), Kalnin et al.
patent: 4737423 (1988-04-01), Turig
patent: 4835075 (1989-05-01), Tajima et al.

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