Shaped body of hydrogen absorbing alloy and container packed with hydrogen absorbing alloy
US5908487A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Mar 21, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hydrogen absorbing alloy-packed container packed with a mixture of powders classified respectively into at least two particle-size distribution groups, each of which is different in mean particle size, the powders comprising a hydrogen absorbing alloy singly or the combination of a hydrogen absorbing alloy and a substance not absorbing hydrogen, the mixture having a ratio r.sub.N+1 /r.sub.N, wherein r.sub.N is the mean particle size of the powder having a particle-size distribution of the Nth largest mean particle size, N being an integer of not smaller than 1, and r.sub.N+1 is the mean particle size of the powder having a particle-size distribution of the (N+1)th largest mean particle size, of at least 0.03 to not greater than 0.50. The alloy powders can be selected from the group consisting of lanthanum-nickel, mischmetal-nickel, iron titanium and titanium manganese.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.