Zinc powder for alkaline batteries
US4920020A · kind A · utility
8Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1989 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Jan 4, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A zinc base powder for alkaline batteries consists of 0.05 to 3% of mercury, 0.003 to 0.2% of bismuth, 0.01 to 0.08% of lead, the rest being zinc. This powder has an excellent resistance to corrosion in alkaline medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.