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US 2004/0175616 A1Published application
Alkaline Battery
AssigneeThe Gillette Company
InventorsWilliam L. Bowden, Klaus Brandt, Paul A. Christian, Zhiping Jiang
Life of this patent
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Abstract
An alkaline battery includes a cathode including lambda-manganese dioxide, an anode including zinc, a separator between the cathode and the anode, and an alkaline electrolyte contacting the anode and the cathode.
Claims26
An alkaline battery comprising:
- a cathode comprising an active cathode material including lambda-manganese dioxide;
- an anode comprising zinc;
- a separator between the anode and the cathode;
- and
- an alkaline electrolyte contacting the anode and the cathode,
- wherein the active cathode material has a specific discharge capacity to a 0.8V cutoff of greater than 290 mAh/g at a discharge rate of 20 mA/g of active cathode material.
3 more elements
An alkaline battery comprising:
- a cathode comprising an active cathode material including lambda-manganese dioxide having a total pore volume of from 0.05 to 0.15 cubic centimeters per gram, and the lambda-manganese dioxide has a B.E.T. surface area of greater than 8 m2/g, wherein the lambda-manganese dioxide is heated to a temperature of 150° C. or less;
- an anode including zinc;
- a separator between the anode and the cathode;
- and
- an electrolyte contacting the cathode, the anode and the separator.
2 more elements
A method of manufacturing an alkaline battery comprising:
- providing a positive electrode including an active cathode material including lambda-manganese oxide;
- and
- forming a battery including the positive electrode and a zinc electrode,
- wherein the active cathode material has a specific discharge capacity to a 0.8V cutoff of greater than 300 mAh/g at a discharge rate of 20 mA/g of active cathode material.
1 more element
Dependencies are inferred from the claim text.