Hydrogen-absorbing alloy electrode
US5008164A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Dec 11, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hydrogen-absorbing alloy electrode comprising a hydrogen-absorbing alloy represented by a formula ANi.sub.a Co.sub.b Mn.sub.c or ANi.sub.a Co.sub.b Mn.sub.c X.sub.d, A representing a mixture of rare earth elements including La and X representing at least one element selected from a group of Fe, Cu, Mo, W, B, Al, Si and Sn, wherein 2.5.ltoreq.a.ltoreq.3.5, 0.4.ltoreq.b.ltoreq.1.5, 0.2.ltoreq.c.ltoreq.1.0, and 3.85.ltoreq.a+b+c.ltoreq.4.78 in the case of ANi.sub.a Co.sub.b Mn.sub.c or 2.5.ltoreq.a.ltoreq.3.5, 0.4.ltoreq.b.ltoreq.1.5, 0.2.ltoreq.c.ltoreq.1.0, 0<d.ltoreq.0.3 and 3.85.ltoreq.a+b+c+d.ltoreq.4.78 in the case of ANi.sub.a Co.sub.b Mn.sub.c X.sub.d, is disclosed. La is contained in a weight ratio (%) of 20.ltoreq.La.ltoreq.50 against a total weight of the rare earth elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.