Batteriezelle, Batterie und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4819342

Anmeldetag

8. Dezember 2023

Veröffentlichung

12. Juni 2025

Rechtsraum

EP

IPC

H01M50/30

Abstract

The present application discloses a battery cell, a battery, and an electric device. The battery cell comprises a casing and a gas permeable membrane assembly; the casing has a wall part, the wall part is provided with a first exhaust hole, and the first exhaust hole makes the interior of the casing and the exterior of the casing communicated; the gas permeable membrane assembly is arranged on the wall part, the gas permeable membrane assembly comprises a gas permeable membrane, and the gas permeable membrane assembly covers the first exhaust hole. In the present application, on the basis of the arrangement, gas inside the battery cell in a sealed state can be discharged through the gas permeable membrane, and gas inside the battery casing is discharged out of the casing in time, thus preventing the air pressure in the battery casing from being too high, reducing the risk that a pressure relief mechanism opens a valve in advance, and greatly prolonging the service life of the battery.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China

Fachgebiete