Composite separator including porous substrate, heat-resistant coating layer, and electrode adhesive layer and electrochemical device using the same
US11322800B2 · kind B2 · utility
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Key dates
| Filing date | Oct 22, 2019 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Feb 3, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are a separator for a secondary battery and an electrochemical device using the same. More specifically, provided is a composite separator having a more excellent cycle life and including a coating layer which is not easily swollen in an electrolyte solution. In the composite separator for a secondary battery according to an aspect of the present invention, distortion or lifting phenomenon is suppressed even when the heat and pressure are applied without significant decrease in permeability of the separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.