Patent ID: 6569573
Filing Date: 2003-05-27
Classification: B41J,H01M,Y02E,Y10T

Abstract:
An electrochemical cell comprising:(a) a solid lithium anode; (b) a solid cathode comprising an electroactive sulfur-containing material; and (c) a non-aqueous electrolyte interposed between said anode and said cathode wherein said electrolyte comprises: (i) one or more lithium salts; (ii) one or more non-aqueous solvents; and (iii) one or more capacity-enhancing reactive components; wherein said capacity-enhancing reactive components comprise an electron transfer mediator of the formula: â€ƒwherein: R4 is the same or different at each occurrence and is selected from the group consisting of H, alkyl, alkenyl, aryl, or substituted derivatives thereof; E is the same or different at each occurrence and is selected from the group consisting of O, NR5, and S; where R5 is alkyl, aryl, or substituted derivatives thereof; a is an integer from 0 to 1; and r is an integer from 2 to 5.