Multilayer separator for lead-acid batteries
US6703161B2 · kind B2 · utility
27Cited by
10References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a battery separator comprising at least one first fibrous layer, at least one second fibrous layer, and at least one microporous polymer layer which is sandwiched between at least two fibrous layers, wherein the microporous polymer layer has an average pore size of less than 1 &mgr;m and wherein the at least one first fibrous layer has a thickness of at least 0.6 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.