Method of manufacturing separator for electrochemical device and separator for electrochemical device manufactured thereby
US10056589B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2014 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of manufacturing a separator for an electrochemical device according to an exemplary embodiment of the present disclosure includes extruding a resin composition including polyolefin and a diluent, stretching the extruded resin composition to obtain a polyolefin film, extracting the diluent from the obtained polyolefin film to obtain a porous polyolefin film, coating a slurry for forming a porous coating layer on at least one surface of the porous polyolefin film, and heat setting the porous polyolefin film coated with the slurry to obtain a composite separator with a porous coating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.