Hydrogen storage alloys for use in rechargeable electrochemical cells, and methods of producing them
US6074783A · kind A · utility
1Cited by
8References
16Claims
0Family size
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Key dates
| Filing date | Dec 4, 1997 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Dec 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AB.sub.5 -type hydrogen absorbing alloy composition for use in an electrochemical cell includes between about 0.001 and 0.01 mole percent of zirconium and/or titanium dispersed throughout the alloy. Methods of producing the alloy are also disclosed. The levels of these elements have been selected to maintain low hydrogen equilibrium pressure, high capacity, and acceptable activation characteristics, along with improved storage characteristics and improved cycle life from reduced corrosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.