Metal hydride electrode and nickel-hydrogen alkaline storage cell
US5506074A · kind A · utility
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4References
12Claims
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Key dates
| Filing date | Sep 28, 1994 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Sep 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A metal hydride electrode is mainly composed of a hydrogen-absorbing alloy and provided with carbon powder which is selected from acetylene black, carbon black, ketjen black, and active carbon. The metal hydride electrode is further provided with an additive including an oxide and/or a hydroxide of a metal having oxidation-reduction potential nobler than an operational potential of the hydrogen-absorbing alloy. The metal hydride electrode has excellent oxygen gas absorption ability and easy detection of -.DELTA.V, thereby realizing to produce a nickel-hydrogen alkaline storage cell with excellent charge/discharge cycle life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.