Binder for a lithium-sulfur battery, positive active...

Details Binder for a lithium-sulfur battery, positive active... Binder for a lithium-sulfur battery, positive active...

2007-02-20

2007-02-20

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S232000, C429S217000, C252S182100

Reexamination Certificate

active

10614870

ABSTRACT:
Disclosed is a binder for a lithium-sulfur battery including a butadiene-based copolymer. The binder exhibits chemical resistance to polysulfides, is stable a battery working temperatures, forms an emulsion in organic solvents and exhibits high adherence to positive active materials and electrodes used in the lithium-sulfur battery. The disclosed binder compositions, due to their high adherence to positive active materials allow for higher relative amounts of positive active materials to be used in the battery resulting in a high capacity lithium-sulfur battery.

REFERENCES:
patent: 6773838 (2004-08-01), Suzuki et al.
patent: 2003/0143462 (2003-07-01), Han et al.
patent: 0 848 435 (1996-08-01), None
patent: 10 1999 0028977 (1998-01-01), None
patent: 10 2002 0011562 (2002-08-01), None
patent: 10-2002-0068783 (2002-08-01), None

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