Batteriezelle, Batterie und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4723348

Anmeldetag

29. Dezember 2023

Veröffentlichung

3. Juli 2025

Rechtsraum

EP

IPC

H01M50/342, H01M50/103H01M50/342

Abstract

The present application provides a battery cell, a battery, and an electrical apparatus, which belongs to the technical field of batteries. The battery cell includes a shell, the shell has a first wall and a second wall connected to each other, the first wall is provided with a first groove, the first wall is configured to be capable of rupturing along at least a part of the first groove during pressure relief of the battery cell, so as to release the internal pressure of the battery cell, the second wall is located on one side of the first wall in a first direction, the first groove includes a first groove segment, and the first groove segment and the second wall are arranged in the first direction. The first wall is also provided with a second groove, in the first direction, the second wall has a first outer surface facing away from an interior of the shell, and a projection of the second groove in a thickness direction of the first wall is located between the first outer surface and a projection of the first groove segment in the thickness direction of the first wall, so that the second groove can absorb the excess material from extrusion of the first groove segment during a forming process of the first groove segment, so as to alleviate a phenomenon that the battery cell partially arches or planeness of the first wall is reduced.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China