Separator und Elektrochemische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4794045

Anmeldetag

10. Februar 2026

Veröffentlichung

19. August 2026

Rechtsraum

EP

Abstract

Provided are a separator (100) and an electrochemical device. The separator (100) includes a porous base film (101) and a heat resistant layer (102). The heat resistant layer (102) is disposed on at least one surface of the porous base film (101), and includes inorganic particles and an adhesive agent. A surface static friction coefficient of the heat resistant layer (102) is ≤0.8, and a bulk density A of the heat resistant layer (102) satisfies: A=(0.4 to 0.5)×ρ. A heat resistant layer (102) with dense stacking and flat surface is obtained by controlling the static friction coefficient and bulk density of the heat resistant layer (102), which may increase an effective contact area between the adhesive particles in the heat resistant layer (102) and the electrode sheet, thereby increasing the adhesive force between the separator (100) as a whole and the electrode sheet.

Anmelder

Firma

AESC Japan Ltd.

Land

🇯🇵 Japan