Lead-acid battery having tin in positive active material and silica in separator
US6495288B2 · kind B2 · utility
14Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a lead-acid battery, a positive active material includes tin in an amount of from not less than 0.2% to not more than 5% based on the weight thereof. The density of the positive active material after formation is from not less than 3.75 g/cc to not more than 5.0 g/cc. When the lead-acid battery is produced by a battery container formation, a time required between the injection of an electrolyte and the beginning of battery container formation is from not less than 0.1 hours to not more than 3 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.