Lead-acid battery separator having enhanced stiffness
US9190648B2 · kind B2 · utility
6Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2008 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lead-acid battery separator comprised of a porous membrane substrate having a front surface and a back surface and said front surface having a plurality of ribs. To enhance the substrate's stiffness, one or more coatings of a stiffening material may be adhered to the ribs on the substrate's surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.