Method of making a co-extruded, multi-layered battery separator
US10003058B2 · kind B2 · utility
1Cited by
19References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2006 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Oct 27, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A battery separator comprises a co-extruded, microporous membrane having at least two layers made of extrudable polymers and having: a uniform thickness defined by a standard deviation of <0.80 microns (μm); or an interply adhesion as defined by a peel strength >60 grams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.