Batteriezelle, Batterie und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4769743

Anmeldetag

29. November 2023

Veröffentlichung

5. Juni 2025

Rechtsraum

EP

IPC

H01M50/30, H01M50/367

Abstract

A battery cell, a battery, and an electric device. The battery cell comprises a casing, a pressure relief structure, and an electrode assembly. The casing is provided with a first wall. The pressure relief structure is disposed on the first wall. The electrode assembly is a wound electrode assembly and is disposed in the casing, and the electrode assembly comprises a flat portion and a first bending portion. Along a first direction, the first bending portion is disposed on the side of the flat portion facing the first wall. A first boundary line is provided between the first bending portion and the flat portion. The distance between the first boundary line and the first wall is L, wherein L ≥ 5 mm. The first direction is perpendicular to the axial direction of the electrode assembly.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China

Fachgebiete