Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
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
Han Ji-Seong
Jung Yongju
Kim Jan-Dee
Kim Seok
H.C. Park & Associates PLC
Samsung SDI & Co., Ltd.
Weiner Laura
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