Patent 7646171 was granted and assigned to Sion Power Corporation on January, 2010 by the United States Patent and Trademark Office.
Disclosed is a method of charging a lithium-sulfur electrochemical cell wherein the lithium-sulfur cell comprises a cathode comprising an electroactive sulfur-containing material, an anode comprising lithium, and a nonaqueous electrolyte. Also disclosed are methods for determining charge termination when charging lithium-sulfur cells.