Valve regulated type battery and producing method thereof
US6284411A · kind A · utility
5Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1997 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Oct 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a valve regulated type lead-acid battery, a positive plate includes a positive grid made of Pb--Ca alloy and a positive active material containing Sb in the range of 0.005% to 1.0% both inclusive per weight of the positive active material; wherein a density of the positive active material is not lower than 3.75 g/cc after formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.