Shutdown battery separator made with a blend of polymer and oligomer
US6749961B1 · kind B1 · utility
27Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Apr 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The instant invention is directed to a battery separator including a microporous polyolefinic membrane having a porosity in a range 30-80%, an average pore size in a range of 0.02-2.0 microns, and being made from a blend of a polyolefin polymer and an oligomer of a polyolefinic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.