Sealed lead-acid cells and batteries
US5691087A · kind A · utility
40Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1996 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Jul 1, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sealed lead-acid cell or battery includes positive plates made from an alloy consisting essentially of lead, from about 0.025% to about 0.06% calcium, from about 0.3% to about 0.9% tin, and from about 0.015% to about 0.045% silver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.