Laminated multilayer separator for lead-acid batteries
US6689509B2 · kind B2 · utility
25Cited by
19References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention concerns a battery separator comprising at least one microporous polymer layer and at least one fibrous layer, wherein the microporous polymer layer comprises micropores with an average pore size of less than 1 &mgr;m and a number of holes with a diameter which is greater than the average diameter of the pores of the fibrous layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.