Shaped body of hydrogen absorbing alloy and container packed with hydrogen absorbing alloy
US5662729A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1995 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Oct 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A shaped body of hydrogen absorbing alloy prepared by pressing a mixture of a hydrogen absorbing alloy powder A having a first particle-size distribution, a hydrogen absorbing alloy powder B having a second particle-size distribution and a binder C. The powder A is larger than the powder B in mean particle size. The mixture has a mean particle size ratio r.sub.B /r.sub.A of the powder B to the powder A, wherein r.sub.A and r.sub.B are the mean particle sizes of the respective powders A and B of at least 0.03 to not greater than 0.50. The hydrogen absorbing alloy of the powder B has a higher rate of progress of pulverization resulting from absorption and desorption of hydrogen than the hydrogen absorbing alloy of the powder A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.