Method for producing separator
US10297805B2 · kind B2 · utility
1Cited by
0References
8Claims
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Assignee
Inventor
Key dates
| Filing date | Apr 3, 2015 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Dec 20, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is provided for producing a separator by cutting a laminated porous film. The laminated porous film includes a porous base material layer containing polyolefin as a main component and a filler layer containing inorganic particles as a main component. The filler layer is provided on one surface of the porous base material layer; and a resin layer containing resin particles as a main component is provided on the other surface of the porous base material layer. The method includes a step of cutting, using a slit blade, the laminated porous film from the one surface on which the filler layer is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.