Batteriezelle, Batterie und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4832227

Anmeldetag

14. Mai 2024

Veröffentlichung

20. November 2025

Rechtsraum

EP

Abstract

A battery cell (10), a battery, and an electrical device. The battery cell (10) comprises a casing (1), an electrode assembly (2), a separation member (4), and a pressure relief mechanism (131). The casing (1) is provided with a first wall part (13), the pressure relief mechanism (131) is disposed on the first wall part (13), the electrode assembly (2) is accommodated in the casing (1), and the electrode assembly (2) and the first wall part (13) are oppositely arranged in a first direction (Z). The separation member (4) is arranged between the first wall part (13) and the electrode assembly (2), the separation member (4) is provided with a clearance space (41), the projection of the pressure relief mechanism (131) is at least partially located in the clearance space (41) in the first direction (Z), and the clearance space (41) is configured to provide clearance for the pressure relief mechanism (131). By means of providing the separation member (4) between the first wall part (13) and the electrode assembly (2), the distance between the electrode assembly (2) and the first wall part (13) is increased. Since the separation member (4) is provided with the clearance space (41), the clearance space (41) can provide clearance for the pressure relief mechanism (131), thereby reducing the risk of the pressure relief mechanism (131) being damaged due to the separation member (4) directly impacting the pressure relief mechanism (131) when the electrode assembly (2) expands and deforms or the first wall part (13) is deformed by an external force, thereby effectively prolonging the service life of the battery cell (10).

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China