The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2002
Filed:
Apr. 18, 2000
Applicant:
Inventor:
Yordan M. Geronov, Tucson, AZ (US);
Assignee:
Moltech Corporation, Tucson, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 ; H01M 4/60 ; H01M 6/16 ;
U.S. Cl.
CPC ...
H01M 4/58 ; H01M 4/60 ; H01M 6/16 ;
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.