Nickel-metal hydride rechargeable battery
US7560188B2 · kind B2 · utility
2Cited by
4References
4Claims
0Family size
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Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Oct 2, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a nickel-metal hydride rechargeable battery comprising a positive electrode of nickel hydroxide and a negative electrode of hydrogen-absorption alloy, prolonged battery life is achieved by limiting the charge and discharge operations to be performed in the range of 20-60% of the hydrogen-absorption capacity of the hydrogen-absorption alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.