Alkaline cells having positive nickel hydroxide electrodes with fluoride salt additives
US6790559B2 · kind B2 · utility
6Cited by
12References
9Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Sep 8, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nickel zinc alkaline cell has a zinc oxide negative electrode supported on a conductive substrate, an alkaline electrolyte, and a positive electrode having nickel hydroxide paste supported on a conductive substrate. The positive electrode further comprises 0.01% to 1% by weight of a fluoride salt, which is a salt of a metal chosen from the group consisting of: potassium, sodium, lithium, rubidium, caesium, a group II metal, a group III metal, a d-block transition metal, an f-block lanthanide, and mixtures thereof. Typically, the fluoride salt is potassium fluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.