Separator for valve regulated lead acid battery and valve regulated lead acid battery
US6939645B2 · kind B2 · utility
14Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2004 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Mar 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A separator for a valve regulated lead acid battery is composed mainly of fine glass fibers and also contains inorganic powder, beaten natural pulp, and heat-weldable organic fibers. The heat-weldable organic fibers have a fineness of 1.5 d (deniers) or less and a fiber length of 1 mm or more, and the amount of the heat-weldable organic fibers is from 3% to 15% by weight. A valve regulated lead acid battery employs the separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.