Hydrogen-absorbing alloy for negative electrode
US5468260A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Dec 2, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hydrogen-absorbing alloy electrode having a hydrogen-absorbing alloy in a single crystal system and composed of at least three elements which are coated on a conductive substrate. One of the at least three elements has a density distribution profile with at least two adjacent high density peaks and a lowest density point between the at least two adjacent high density peaks. A density difference between one of the at least two adjacent high density peaks and the lowest density point is not less than about 3.0 wt % and a distance between the two adjacent high density peaks is not less than about 20 .mu.m. The hydrogen-absorbing alloy has a volume of 2 .mu.m.sup.3 and may include an additive selected from a group consisting of Manganese (Mn), Boron (B), Tungsten (W) and Cobalt (co).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.