Separator, Elektrodengruppe, Sekundärbatterie, Batteriepack, Fahrzeug und Stationäre Stromversorgung

Details

Veröffentlichungs-Nr.

EP3792993

Aktenzeichen

EP20159774

Anmeldetag

27. Februar 2020

Veröffentlichung

24. Juli 2024

Erteilung

24. Juli 2024

Rechtsraum

EP

IPC

B01D69/12B01D69/14H01M4/485H01M4/505H01M4/525B01D69/02H01M50/20H01M50/446H01M50/449

Abstract

According to one embodiment, a separator (4) is provided. The separator (4) includes a composite membrane (53). The composite membrane (53) includes a substrate layer (530), a first composite layer (531), and a second composite layer (532). The first composite layer (531) is located on one surface (S1) of the substrate layer (530). The second composite layer (531) is located on the other surface (S2) of the substrate layer (530). The composite membrane (53) has a coefficient of air permeability of 1 × 10<-14> m<2> or less. The first composite layer (531) has a first surface (FS<C1>) and a second surface (SS<C1>). The first surface (FS<C1>) is in contact with the substrate layer (530). The second surface (SS<C1>) is located on an opposite side to the first surface (FSci) . Denseness of a portion including the first surface (FS<C1>) is lower than denseness of a portion including the second surface (SS<C1>) in the first composite layer (531).

Anmelder

Firma

Kabushiki Kaisha Toshiba

Land

🇯🇵 Japan

Fachgebiete