Compositions – Electrically conductive or emissive compositions
Reexamination Certificate
2006-09-15
2010-11-02
Silverman, Stanley (Department: 1793)
Compositions
Electrically conductive or emissive compositions
C429S340000, C429S330000, C429S324000, C429S326000, C429S122000
Reexamination Certificate
active
07824578
ABSTRACT:
Disclosed is an electrolyte for batteries, which comprises: (a) an electrolyte salt; (b) an electrolyte solvent; and (c) a sulfonate-based compound containing at least one electron withdrawing group (EWG) selected from the group consisting of a cyano group (—CN), an isocyanate group (—NCO), a thiocyanate group (—SCN) and an isothiocyanate group (—NCS). An electrode comprising the sulfonate-based compound or a chemical reaction product thereof, partially or totally formed on the surface thereof, and an electrochemical device comprising the electrolyte and/or the electrode are also disclosed. The electrochemical device using the sulfonate-based compound containing a cyano group, an isocyanate group, a thiocyanate group and/or an isothiocyanate group as an additive for electrolytes can provide significantly improved high-temperature lifespan characteristics.
REFERENCES:
patent: 6444360 (2002-09-01), Gan et al.
patent: 2002/0197537 (2002-12-01), Kim et al.
patent: 2003/0170548 (2003-09-01), Otsuki et al.
patent: 2003/0190531 (2003-10-01), Otsuki et al.
patent: 2004/0053138 (2004-03-01), Otterstedt et al.
patent: 2004/0197667 (2004-10-01), Noh et al.
patent: 2005/0089760 (2005-04-01), Blasi et al.
patent: 1385919 (2002-12-01), None
patent: 1532986 (2004-09-01), None
patent: 1 109 244 (2001-06-01), None
patent: 100450199 (2004-09-01), None
patent: 1020050068665 (2005-07-01), None
patent: 329566 (1998-04-01), None
patent: 200409397 (2004-06-01), None
patent: 200532963 (2005-10-01), None
patent: 2005/027254 (2005-03-01), None
International Search Report dated Jan. 2, 2007 for Application No. PCT/KR2006/003677 (All references cited in search report are listed above).
Gao Yang et al; “Recent development of electrolytes in lithium-ion rechargeable batteries”; Chinese Journal of Power Sources; vol. 27; No. 5; Oct. 2003; pp. 479-483.
Chinese Office Action for application No. 200680033865.1 dated Jul. 24, 2009.
Choi Yong Su
Lee Ho Chun
Park Hong Kyu
Park Tae Yoon
Yoon Soo Jin
Cantor & Colburn LLP
LG Chem Ltd.
Silverman Stanley
Vijayakumar Kallambella
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