Claims
- 1. A nickel-zinc galvanic cell which has a pasted zinc oxide negative electrode, a pasted nickel oxide positive electrode, and an alkaline electrolyte, wherein chemical additives are placed in each of said negative and positive electrodes;wherein said positive nickel hydroxide electrode contains a mixture of co-precipitated cobalt oxide in the range of 1% to 10%, and freely added, finely divided cobalt metal in the range of 1% to 5%, by weight; and wherein said negative electrode contains oxides other than the oxide of zinc which have redox potentials which are negative of −0.73 volts.
- 2. The nickel-zinc cell of claim 1, wherein the metal oxide additives to the negative zinc oxide electrode are such as to inhibit release of soluble cobalt from the nickel oxide negative electrode prior to a formation charge being applied to the electrochemical cell.
- 3. The nickel-zinc cell of claim 1 or 2, wherein the negative zinc oxide electrode contains 1% to 15% of the defined metal oxides, having a solubility less than 10−4M in the alkaline electrolyte.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2325640 |
Nov 2000 |
CA |
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Parent Case Info
This is a continuation of application No. PCT/CA01/01717, filed Nov. 7, 20001.
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Mar 1975 |
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Country |
54-163324 |
Dec 1974 |
JP |
Continuations (1)
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Number |
Date |
Country |
Parent |
PCT/CA01/01717 |
Nov 2001 |
US |
Child |
10/429711 |
|
US |