Patent ID: 6057056
Filing Date: 2000-05-02
Classification: H01M,Y02E

Abstract:
A positive electrode used for secondary battery comprising;1) a positive electrode material comprising;i) an organosulfur compound which is capable of forming sulfur--sulfur bond by electrolytic oxidation and reversibly regenerated by reductive cleavage of sulfur--sulfur bond;ii) one or more metallic components having multiple oxidation states, which undergoes oxidation when the secondary battery is charged and reduction when the secondary battery is discharged wherein the metallic components are selected from the group consisting of metals of vanadium(V), chromium(Cr), manganese(Mn), iron(Fe), molybdenum(Mo), tungsten(W), cobalt(Co), scandium(Sc), titanium(Ti), nickel(Ni), Zinc(Zn), ruthenium(Ru), and rhodium(Rh) elements, their alloys, and combinations thereof; andiii) one or more electrically conductive ingredients selected from the group consisting of conductive carbon and electrically conductive polymer; and2) an electrically conductive current collector made of copper or copper alloy on which said positive electrode material is placed.