Additives for electrochemical cells having zinc anodes
US5401590A · kind A · utility
57Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1992 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Dec 7, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for inhibiting the occurrence of load voltage instability in zinc anodic alkaline cells. The anode active material contains a gelled slurry of zinc alloy particles, a gelling agent, an aqueous alkaline solution and a mixed surfactant containing an anionic surfactant and a non-ionic surfactant. The gelled anode active material inhibits the occurrence of load voltage instability and simultaneously reduces hydrogen evolution even though the cell contains no added amounts of mercury.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.