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US 2004/0202931 A1Published application
Preparation of nickel oxyhydroxide
AssigneeThe Gillette Company
InventorsPaul A. Christian, Tatjana Mezini
Life of this patent
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Abstract
Nickel oxyhydroxide can be prepared by exposing a mixture of a nickel hydroxide and a hydroxide salt to ozone. The nickel oxyhydroxide is suitable for use in the cathode of a battery.
Claims31
A method of preparing nickel oxyhydroxide comprising:
- combining a nickel hydroxide and a hydroxide salt in an inert atmosphere to form a mixture;
- and
- exposing the mixture to ozone to form a nickel oxyhydroxide.
A battery comprising:
- a cathode comprising a carbonate-free nickel oxyhydroxide;
- an anode;
- a separator;
- and
- an electrolyte.
2 more elements
A method of manufacturing a battery comprising:
- combining a nickel hydroxide and a hydroxide salt in an inert atmosphere to form a mixture;
- exposing the mixture to ozone to form a nickel oxyhydroxide;
- and
- assembling a cathode comprising the nickel oxyhydroxide, an anode, a separator, and an electrolyte to form the battery.
1 more element
A method of decreasing capacity loss in a nickel oxyhydroxide battery comprising:
- combining a nickel hydroxide and a hydroxide salt in an inert atmosphere to form a mixture;
- exposing the mixture to ozone to form a nickel oxyhydroxide;
- forming a cathode including the nickel oxyhydroxide;
- and
- assembling the cathode, an anode, a separator, and an electrolyte to form the alkaline battery,
- wherein the battery has a capacity loss after storage for 4 weeks at 60° C. of less than 30 percent.
3 more elements
Dependencies are inferred from the claim text.