Electrode alloy powder and method of producing the same
US6790558B2 · kind B2 · utility
4Cited by
4References
14Claims
0Family size
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Key dates
| Filing date | Oct 19, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jul 11, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of producing an electrode alloy powder is disclosed, wherein, to provide an electrode alloy powder capable of yielding an alkaline storage battery excellent in high-rate discharge property, self-discharge property and cycle life, a first step of immersing a starting powder comprising a hydrogen storage alloy containing 20 to 70 wt % of Ni in an aqueous solution containing 30 to 80 wt % of sodium hydroxide at a temperature of 90° C. or higher and a second step of washing with water the powder which has been subjected to the first step are conducted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.