Non-aqueous electrolyte and a lithium secondary battery...

Details Non-aqueous electrolyte and a lithium secondary battery... Non-aqueous electrolyte and a lithium secondary battery...

2003-09-10

2009-06-30

Weiner, Laura S (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S326000, C429S330000, C429S332000, C429S328000, C429S329000, C429S336000, C429S337000

Reexamination Certificate

active

07553588

ABSTRACT:
An electrolyte for a lithium secondary battery includes lithium salts, a non-aqueous organic solvent, and additive compounds. The additive compounds added to the electrolyte of the present invention decompose earlier than the organic solvent to form a conductive polymer layer on the surface of a positive electrode, and prevent decomposition of the organic solvent. Accordingly, the electrolyte inhibits gas generation caused by decomposition of the organic solvent at initial charging, and thus reduces an increase of internal pressure and swelling during high temperature storage, and also improves safety of the battery during overcharge.

REFERENCES:
patent: 4489145 (1984-12-01), Abraham et al.
patent: 4670363 (1987-06-01), Whitney et al.
patent: 5030528 (1991-07-01), Shen et al.
patent: 5223353 (1993-06-01), Ohsawa et al.
patent: 5879834 (1999-03-01), Mao
patent: 6074777 (2000-06-01), Reimers et al.
patent: 6787269 (2004-09-01), Sekino et al.
patent: 7150944 (2006-12-01), Song et al.
patent: 7223500 (2007-05-01), Noh et al.
patent: 2004/0197667 (2004-10-01), Noh et al.
patent: 0759641 (1997-02-01), None
patent: 0776058 (1997-05-01), None
patent: 1335445 (2003-08-01), None
patent: 1361622 (2003-11-01), None
patent: 61-230276 (1986-10-01), None
patent: 62-160671 (1987-07-01), None
patent: 4-56079 (1992-02-01), None
patent: 7-169505 (1995-07-01), None
patent: 7-192756 (1995-07-01), None
patent: 07-320779 (1995-12-01), None
patent: 08-064238 (1996-03-01), None
patent: 8-138735 (1996-05-01), None
patent: 08-321312 (1996-12-01), None
patent: 09-073918 (1997-03-01), None
patent: 9-204932 (1997-08-01), None
patent: 10-21958 (1998-01-01), None
patent: 11-40194 (1999-02-01), None
patent: 2000-58117 (2000-02-01), None
patent: 2000-156243 (2000-06-01), None
patent: 2001-15172 (2001-01-01), None
patent: 2001-015172 (2001-01-01), None
patent: 2002-075446 (2002-03-01), None
patent: 2002-124298 (2002-04-01), None
patent: 2002-280065 (2002-09-01), None
patent: 2002-359002 (2002-12-01), None
patent: WO 02/054524 (2002-07-01), None
Sid Megahed and Bruno Scrosati; Lithium-ion rechargeable batteries; Journal of Power Sources, 51 (1994) pp. 79-104.
C.R. Yang, Y.Y. Wang, and C.C. Wan; Composition analysis of the passive film on the carbon electrode of a lithium-ion battery with an EC-based electrolyte; Journal of Power Sources 72 (1998) pp. 66-70.
Möller, K.-C., et al. “In situ characterization of the SEI formation on graphite in the presence of a vinylene group containing film-forming electrolyte additives”, Jun. 1, 2003, Journal of Power Sources, vol. 119-121, pp. 561-566.
Arimura, Tomoaki, et al., “The effect of additives on the ionic conductivity performances of perfluoroalkyl sulfonated ionomer membranes”, Mar. 1, 1999, Solid State Ionics, vol. 118, pp. 1-10.
Wang, Congxiao, et al., “Electrochemical behaviour of a graphite electrode in propylene carbonate and 1,3-benzodioxol-2-one based electrolyte system”, Jul. 15, 1998, Journal of Power Sources, vol. 74, pp. 142-145.
Matsuda, Yoshiharu, “Behavior of lithium/electrolyte interface in organic solutions”, 1993, Journal of Power Sources, vol. 43-44, pp. 1-7.
Matsuda, Yoshiharu, et al. “Organic additives for the electrolytes of rechargeable lithium batteries”, May 16, 1989, Journal of Power Sources, vol. 26, pp. 679-583.

Affiliated with

Also associated with

Rating

Non-aqueous electrolyte and a lithium secondary battery... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-aqueous electrolyte and a lithium secondary battery..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-aqueous electrolyte and a lithium secondary battery... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4145022