Porous composite separator for secondary battery, and lithium secondary battery comprising same
US11843125B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Dec 4, 2018 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Feb 4, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to: a porous composite separator for a secondary battery including a porous substrate, and a coating layer formed on the porous substrate, wherein the coating layer has a plurality of inorganic particles, which are connected and fixed by a composite binder including a particulate polymer binder and an interpenetrating polymer network (IPN)-type binder having no melting point and having a thermal decomposition temperature of 300° C. or higher; and a lithium secondary battery including the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.