Batteriezelle, Batterie, Energiespeichervorrichtung und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4765350

Anmeldetag

25. Juni 2024

Veröffentlichung

30. Mai 2025

Rechtsraum

EP

IPC

H01M50/103

Abstract

A battery cell (10), a battery (100), an energy storage device (2000), and an electric device. The battery cell (10) comprises a casing (11). An opening (11a) is formed in an end portion of the casing (11) in a first direction. In the circumferential direction of the opening (11a), the casing (11) comprises first walls (110), corner areas (112), and second walls (113) which are connected in sequence. Each first wall (110) is provided with a first body portion (1100) and a first thickening portion (1101) which are arranged in the first direction, the first body portion (1100) is farther from the opening (11a) than the first thickening portion (1101), and the maximum thickness of the first thickening portion (1101) is greater than that of the first body portion (1100). Each corner area (112) is provided with a second body portion (1120) and a second thickening portion (1121) which are arranged in the first direction, the second body portion (1120) is farther from the opening (11a) than the second thickening portion (1121), and the maximum thickness of the second thickening portion (1121) is greater than that of the second body portion (1120). The provided technical solution can improve the reliability of the battery cell (10).

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China