Lead-acid battery separator and method for producing thereof
US5989750A · kind A · utility
39Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Sep 26, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A separator contains thermoplastic synthetic fiber, and acid-resisting oxidation-resisting inorganic filler, wherein the cumulative volume of pores having a pore size not smaller than 1 .mu.m is not larger than 20% of the cumulative volume of all pores, and the maximum pore size is not larger than 10 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.