Sulfur trioxide soluble cathode primary cell

Details Sulfur trioxide soluble cathode primary cell Sulfur trioxide soluble cathode primary cell

H - Electricity

01

M

319/64

H01M 6/02 (2006.01) H01M 6/14 (2006.01)

Patent

CA 1139364

?-21839 SULFUR TRIOXIDE SOLUBLE CATHODE PRIMARY CELL ABSTRACT OF THE INVENTION This invention provides a primary electrochemical cell having an oxidizable active anode material; an inert cathode current collector; and an electrolyte solution, in contact with the anode and the cathode current collector, consisting essentially of at least one soluble electrolyte salt and a solvent mixture selected from the group consisting of (a) cosolvents sulfur trioxide and sulfuryl chloride, and (b) trisolvents sulfur trioxide, sulfur dioxide and sulfuryl chloride; wherein the sulfur trioxide is the sole active cathode material. In a preferred embodiment where the oxidizable active anode material is lithium metal, single cell open circuit potentials of 4.6V and above can be obtained. -1-

341850

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