Separator, Herstellungsmethode dafür und Lithiumbatterie Diesen enthaltend

Details

Veröffentlichungs-Nr.

EP3537503

Aktenzeichen

EP19160936

Anmeldetag

6. März 2019

Veröffentlichung

4. Mai 2022

Erteilung

4. Mai 2022

Rechtsraum

EP

IPC

H01M50/403H01M50/411H01M50/446H01M50/449H01M10/052

Abstract

A separator includes a substrate and a coating layer on at least one surface of the substrate, wherein the coating layer includes first organic particles and second organic particles, an average particle diameter of the first organic particles is larger than an average particle diameter of the second organic particles, the first organic particles protrude a height of about 0.1 µm to about 0.5 µm from a dented portion of a surface of the coating layer and are distributed on the surface of the coating layer in an area ratio from 5% or greater to less than 30% with respect to a total surface area of the coating layer. Using the separator, a lithium battery may have improved adhesion to electrodes, improved insulation characteristics and air permeability, and improved lifespan characteristics.

Anmelder

Firma

Samsung SDI Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete