Cell having anode containing silver additive for enhanced oxygen recombination

Claim 2

A NICKEL-CADMIUM SECONDARY, ELECTROCHEMICAL CELL HAVING ENCHANCED OXYGEN RECOMBINATION PROPERTIES COMPRISING: A. A CASING; B. A POSITIVE ELECTRODE DISPOSED IN SAID CASING; C. A NEGATIVE ELECTRODE DISPOSED IN SAID CASING, SAID POSITIVE AND NEGATIVE ELECTRODES COMPRISING:

Claim 3

A CONDUCTIVE SUBSTRATE;

Claim 4

A CONDUCTIVE SUBSTRATE;

Claim 5

A POROUS PLAQUE OF SINTERED NICKEL POWER DISPOSED ON SAID CONDUCTIVE SUBSTRATE; AND

Claim 6

A POROUS PLAQUE OF SINTERED NICKEL POWER DISPOSED ON SAID CONDUCTIVE SUBSTRATE; AND

Claim 7

a porous plaque of sintered nickel powder disposed on said substrate; and

Claim 8

a porous plaque of sintered nickel powder disposed on said substrate; and

Claim 9

The cell of claim 1 wherein the silver particles are approximately 0.001 to 5 percent by weight of the total electrode excluding the substrate.

Claim 10

an active material impregnated in the pores of said porous material, the active material of said positive and negative electrodes in a discharged state consisting essentially of Ni(OH)2 and Cd(OH)2, respectively; d. a porous separator disposed between said positive and negative electrodes; e. an alkaline electrolyte filling a portion of said casing; f. a small deposit of catalytically active silver particles dispersed throughout the pores of said porous material of the negative electrode, said silver deposit being less than or equal to 5 percent by weight of the negative electrode excluding the substrate.

Claim 11

an active material impregnated in the pores of said porous material, the active material of said positive and negative electrodes in a discharged state consisting essentially of Ni(OH)2 and Cd(OH)2, respectively; d. a porous separator disposed between said positive and negative electrodes; e. an alkaline electrolyte filling a portion of said casing; f. a small deposit of catalytically active silver particles dispersed throughout the pores of said porous material of the negative electrode, said silver deposit being less than or equal to 5 percent by weight of the negative electrode excluding the substrate.

Claim 12

The cell of claim 1 wherein said deposit of silver particles is incorporated in the pores of said porous plaque of said negative electrode by forming a dispersion of 5 to 30 percent by weight of metallic cadmium (in reduced state) in the pores of said porous material and then exposing reduced cadmium to a source of oxidized silver such that said oxidized silver and reduced cadmium will enter into an oxidation-reduction reaction to deposit at least 0.001 percent by weight of the total electrode excluding the substrate of reduced silver in the pores of said porous material.

Claim 13

an active material inpregnated in the pores of said porous plaque, the active material of said positive and negative electrodes in a discharged state consisting essentially of Ni(OH)2 and Cd(OH)2, respectively; d. a porous separator disposed between said positive and negative electrodes; e. an alkaline electrolyte filling a portion of said casing; f. a small deposit of catalytically active silver particles dispersed throughout the pores of said porous plaque of the negative electrode.

Claim 14

an active material inpregnated in the pores of said porous plaque, the active material of said positive and negative electrodes in a discharged state consisting essentially of Ni(OH)2 and Cd(OH)2, respectively; d. a porous separator disposed between said positive and negative electrodes; e. an alkaline electrolyte filling a portion of said casing; f. a small deposit of catalytically active silver particles dispersed throughout the pores of said porous plaque of the negative electrode.

Claim 15

AN ACTIVE MATERIAL IMPREGNATED IN THE PORES OF SAID POROUS PLAQUE THE ACTIVE MATERIAL OF SAID POSIVITE AND NEGATIVE ELECTRODES IN A DISCHARGED STATE CONSISTING ESSENTIALLY OF NI(OH)2 AND CD(OH)2, RESPECTIVELY; D. A POROUS SEPARATOR DISPOSED BETWEEN SAID POSITIVE AND NEGATIVE ELECTRODES; E. AN ALKALINE ELECTROLYTE FILING A PORTION OF SAID CASING F. A SMALL DEPOSIT OF CATALYTICALLY ACTIVE SILVER PARTICLES DISPERSED THROUGHOUT THE PORUS OF SAID POROUS PLAQUE OF THE NEGATIVE ELECTRODE.

Claim 16

AN ACTIVE MATERIAL IMPREGNATED IN THE PORES OF SAID POROUS PLAQUE THE ACTIVE MATERIAL OF SAID POSIVITE AND NEGATIVE ELECTRODES IN A DISCHARGED STATE CONSISTING ESSENTIALLY OF NI(OH)2 AND CD(OH)2, RESPECTIVELY; D. A POROUS SEPARATOR DISPOSED BETWEEN SAID POSITIVE AND NEGATIVE ELECTRODES; E. AN ALKALINE ELECTROLYTE FILING A PORTION OF SAID CASING F. A SMALL DEPOSIT OF CATALYTICALLY ACTIVE SILVER PARTICLES DISPERSED THROUGHOUT THE PORUS OF SAID POROUS PLAQUE OF THE NEGATIVE ELECTRODE.

Claim 17

A nickel-cadmium secondary, electrochemical cell having enhanced oxygen recombination properties comprising: a. a casing; b. a positive electrode disposed in said casing; c. a negative electrode disposed in said casing, said positive and negative electrodes comprising:

Claim 18

A nickel-cadmium secondary, electrochemical cell having enhanced oxygen recombination properties comprising: a. a casing; b. a positive electrode disposed in said casing; c. a negative electrode disposed in said casing, said positive and negative electrodes comprising: