Co-extruded, multi-layered battery separator
US10818899B2 · kind B2 · utility
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21References
5Claims
0Family size
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Key dates
| Filing date | May 15, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jun 22, 2038 |
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.