Calcium-nickel-misch metal-aluminum quaternary alloy for hydrogen storage
US4631170A · kind A · utility
2Cited by
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2Claims
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Key dates
| Filing date | Aug 5, 1985 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Aug 5, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A calcium-nickel-misch metal-aluminum quaternary alloy for hydrogen storage having an enhanced hydrogen absorbing/releasing capability which allows for the selection of equilibrium pressures for metal hydride formation and dissociation over a broad temperature range. The alloy has the formula: EQU CaNi.sub.a Mm.sub.b Al.sub.c, wherein Mm is a misch metal; a, b and c are, respectively, atomic ratios of Ni, Mm and Al, with Ca taken as unity; and 5-(b+c)<a.ltoreq.8, 0<b.ltoreq.0.4, and 0<c.ltoreq.0.6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.