Hydrogen storage alloy electrode
US5354576A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1992 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Dec 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to an electrode composed of an active material. This electrode comprises a composition of a hydrogen storage alloy powder possessed of relatively high electrochemical capacity with a formula of MmNi5-x-y-z AxByCz and a hydrogen storage alloy powder possessed of catalytic activity with a formula of D2-uE1-vFuGv wherein Mm is the mischmetal, A=Co, Cr, V; B=Mn, Sn, Be; C=Al, Ca, Mg, Zr, Nb; D=Mg, Al; E=Cu, Zn; F=Ca, Be; G=Sn, Bi; 0.ltoreq.x.ltoreq.0.5, O.ltoreq.y.ltoreq.l.5, 0.ltoreq.z.ltoreq.0.5, 0.ltoreq.u.ltoreq.1, 0.ltoreq.v.ltoreq.0.5. The internal pressure of the alkali battery assembled with this electrode can be effectively lowered, the capacity and the cycle life of the sealed battery are improved, the activation period of the battery is shortened to 3-5 times, thus the crucial technical problem about industrial mass production of this kind of alkali batteries is surmounted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.