Method for increasing reversible lithium intercalation capacity

Details Method for increasing reversible lithium intercalation capacity Method for increasing reversible lithium intercalation capacity

1997-03-06

2000-05-23

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

4292318, 423460, H01M 438

Patent

active

060664134

ABSTRACT:
Mechanical grinding of graphite, soft carbon coke, or hard carbon over the range of 20-80 hours produces carbon powders which may be incorporated into secondary lithium battery electrodes to yield improved reversible lithium intercalation capacity of up to about 708 mAh/g, thus approximating Li.sub.2 C.sub.6, with irreversible intercalation of only about 328 mAh/g.

REFERENCES:
patent: 5162170 (1992-11-01), Miyabayashi et al.
patent: 5219680 (1993-06-01), Fauteux
patent: 5378561 (1995-01-01), Furukawa et al.
patent: 5460904 (1995-10-01), Gozdz et al.
patent: 5622793 (1997-04-01), Iijima et al.
J. R. Dahn et al., Lithium Batteries--New Materials, Developments and Perspectives, edited by G. Pistoia (Elsevier North Holland) Chapter 1, pp. 1-47 (1993) (month n/a).

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