Surface modifications for carbon lithium intercalation anodes

Details Surface modifications for carbon lithium intercalation anodes Surface modifications for carbon lithium intercalation anodes

1998-08-31

2000-08-01

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

42923195, H01M 1024

Patent

active

060964545

ABSTRACT:
A prefabricated carbon anode containing predetermined amounts of passivating film components is assembled into a lithium-ion rechargeable battery. The modified carbon anode enhances the reduction of the irreversible capacity loss during the first discharge of a cathode-loaded cell. The passivating film components, such as Li.sub.2 O and Li.sub.2 CO.sub.3, of a predetermined amount effective for optimal passivation of carbon, are incorporated into carbon anode materials to produce dry anodes that are essentially free of battery electrolyte prior to battery assembly.

REFERENCES:
patent: 5401598 (1995-03-01), Miyabayashi et al.

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