Separator for electrochemical device, electrochemical device comprising the same and manufacturing method of the separator
US12126045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Dec 18, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a separator for an electrochemical device, including: a porous polymer substrate; and a porous organic/inorganic coating layer formed on at least one surface of the porous polymer substrate and including heat conductive inorganic particles and core-shell particles, wherein the particles are bound to one another by a binder polymer, and wherein the core-shell particle includes a core portion and a shell portion surrounding the surface of the core portion, the core portion includes a metal hydroxide having heat-absorbing property at 150-400° C., the shell portion includes a polymer resin, and the polymer resin is a water-insoluble polymer or crosslinked polymer. An electrochemical device including the separator is also provided. It is possible to provide a separator with an improved heat-absorbing effect and safety, and an electrochemical device including the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.