Composition for forming porous heat-resistant layer, separator including the porous heat-resistant layer, and electrochemical battery including the separator
US10361417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2017 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Apr 26, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composition for forming a porous heat-resistant layer of a separator, a separator, and an electrochemical battery, the composition including a monomer including a cross-linkable functional group, an oligomer including a cross-linkable functional group, a polymer including a cross-linkable functional group, or a mixture thereof; a solvent; an initiator; first inorganic particles having an average particle diameter (D50) X of about 300 nm to about 700 nm; and second inorganics particle having an average particle diameter (D50) of 0.1X to 0.4X, wherein a weight ratio of the first inorganic particles to the second inorganic particles in the composition is about 7:3 to about 8.5:1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.