Positive active material and positive active material...

Details Positive active material and positive active material... Positive active material and positive active material...

2006-03-28

2006-03-28

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S218100, C429S231800, C429S232000, C429S212000, C252S519140, C252S519400, C252S502000, C252S512000

Reexamination Certificate

active

07018739

ABSTRACT:
The present invention relates to a positive active material for a lithium-sulfur battery and a method of preparing a positive active material composition comprising the same, and the positive active material includes a sulfur compound, a conductive agent adhered to the sulfur compound, and a binder including at least one polymer, which is positioned between the sulfur compound and the conductive agent to bind the conductive agent to the sulfur compound.The capacity per active mass weight of the positive active material increases by 25 to 35%, and the positive active material has improved discharge potentials and discharge capacity at high rate.

REFERENCES:
patent: 5523179 (1996-06-01), Chu
patent: 6110619 (2000-08-01), Zhang et al.
patent: 6194099 (2001-02-01), Gernov et al.
patent: 6210831 (2001-04-01), Gorkovenko et al.
patent: 2002/0192557 (2002-12-01), Choi et al.
patent: 1 411 270 (1975-10-01), None

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