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Patent Searching and Data


Title:
LITHIUM ELECTROCHEMICAL CELLS WITH ENHANCED CYCLE LIFE
Document Type and Number:
WIPO Patent Application WO2001080329
Kind Code:
A3
Abstract:
A secondary lithium-sulfur electrochemical cell is provided comprising: (a) an anode comprising lithium; (b) a cathode comprising an electroactive sulfur-containing material; and (c) a non-aqueous electrolyte interposed between the anode and the cathode, wherein the electrolyte comprises: (i) one or more lithium salts; (ii) one or more non-aqueous solvents; and (iii) a cycle life enhancing amount of water; wherein the cycle life enhancing amount of water is greater than 3000 ppm by weight of the electrolyte. Such cells have a long cycle life.

Inventors:
GERONOV YORDAN M (US)
Application Number:
PCT/US2001/012541
Publication Date:
August 08, 2002
Filing Date:
April 17, 2001
Export Citation:
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Assignee:
MOLTECH CORP (US)
GERONOV YORDAN M (US)
International Classes:
H01M10/052; H01M10/0567; H01M10/36; H01M4/38; H01M4/60; H01M6/16; (IPC1-7): H01M10/40; H01M4/60
Domestic Patent References:
WO1997044840A11997-11-27
Foreign References:
US5962171A1999-10-05
EP0603397A11994-06-29
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