Hydrogen-absorbing alloy electrode, alkaline storage battery, and method of manufacturing the alkaline storage battery
US8053114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2006 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Low temperature discharge capability and high rate discharge capability are improved in an alkaline storage battery that uses as its negative electrode a hydrogen-absorbing alloy electrode employing hydrogen-absorbing alloy particles containing at least nickel and a rare-earth element. An alkaline storage battery uses as the negative electrode a hydrogen-absorbing alloy electrode employing hydrogen-absorbing alloy particles containing at least nickel and a rare-earth element. The hydrogen-absorbing alloy particles have a surface layer and an interior portion, the surface layer having a nickel content greater than that of the interior portion, and nickel particles having a particle size within a range of from 10 nm to 50 nm are present in the surface layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.