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AssigneeWilson Greatbatch Ltd.
InventorsCharles C. Liang, M. Elizabeth Bolster, Robert M. Murphy
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An electrochemical cell incorporating cathode materials comprising at least one metal oxide, at least one metal, or mixture of metals or metal oxides incorporated in the matrix of a host metal oxide. The cathode materials of this invention are constructed by the chemical addition, reaction, or otherwise intimate contact of various metal oxides and/or metal elements during thermal treatment in mixed states. The materials thereby produced contain metals and oxides of the groups IB, IIB, IIIB, IVB, VB, VIB, VIIB, and VIII, which includes the noble metals and/or their oxide compounds. The incorporation of the metal oxides, metals or mixtures thereof substantially increases the discharge capacity and the overall performance of the cathode materials.
An electrochemical cell having an anode of a Group 1A metal which is electrochemically oxidizable to form metal ions in the cell upon discharge to generate electron flow in an external electrical circuit connected to the cell and a cathode of electronically conductive material and characterized by an ionic conductive electrolyte solution operatively associated with the anode and the cathode, the cathode comprising a composite oxide matrix of vanadium oxide chemically reacted with at least one other metal selected from the group consisting of groups IB, IIB, IIIB, IVB, VIB, VIIB and VIII, said composite oxide being the thermal decomposition and reaction product of a mixture of vanadium oxide with at least one decomposable metal compound of said groups.
A cathode for an electrochemical cell comprising the composite oxide matrix of vanadium oxide chemically reacted with at least one metal selected from the group consisting of silver, copper, manganese and mixtures thereof, said composite oxide being the thermal decomposition and reaction product of a mixture of vanadium oxide with at least one decomposable metal compound of said group.
Dependencies are inferred from the claim text.