Process for preparing zinc powder for alkaline batteries (V)
US4548642A · kind A · utility
7Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1984 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Mar 27, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A zinc powder having a low gas evolution in an alkaline electrolyte for use in an alkaline battery are obtained by alloying the zinc with at least one metal selected from the group consisting of lead, cadmium, thallium and indium and at least one further metal selected from the group consisting of lead, cadmium, thallium, indium gold, silver, tin and gallium. Thereby it is possible to avoid the use of mercury as an alloying element but nevertheless to obtain a zinc powder which meet all of the requirements for use in alkaline batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.