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AssigneeW. Greatbatch Ltd.
InventorsEsther S. Takeuchi, Randolph A. Leising
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An electrochemical cell incorporating cathode materials comprising at least one metal oxide, a first metal and a second metal or a mixture of a first and a second metals or their metal oxides incorporated in the matrix of a host metal oxide is described. The cathode materials of this invention are constructed of 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 Group IB, IIB, IIIB, IVB, VB, VIB, VIIB, and VIII, which include the noble metals and/or their metal oxide compounds. A preferred material comprises a composite metal oxide matrix formed as the thermal decomposition and reaction product of a matrix of vanadium oxide and at least two decomposable metals including copper and silver.
An electrochemical cell having an anode of a Group IA metal which is electrochemically oxidized to form metal ions in the cell upon discharge to generate electron flow in an external electrical circuit connected to the cell, a cathode of electronically conductive material, and an ionically conductive electrolyte solution operatively associated with the anode and the cathode, the cathode comprising a metal oxide matrix material comprising vanadium oxide and a mixture of a copper-containing constituent and a silver-containing constituent, the metal oxide matrix material having a stoichiometric formulation consisting of either Cu.sub.0.16 Ag.sub.0.67 V.sub.2 O.sub.z with z being about 5.5 or Cu.sub.0.5 Ag.sub.0.5 V.sub.2 O.sub.z with z being about 5.75.
A cathode for an electrochemical cell comprising a metal oxide matrix material as a reaction product formed by either a thermal decomposition reaction or a thermal addition reaction of a mixture of vanadium oxide and a copper-containing constituent and a silver-containing constituent, the metal oxide matrix material having a stoichiometric formulation consisting of either Cu.sub.0.16 Ag.sub.0.67 .sub.V.sub.2 O.sub.z with z being about 5.5 or Cu.sub.0.5 Ag.sub.0.5 V.sub.2 O.sub.z with z being about 5.75.
Dependencies are inferred from the claim text.