Sekundärbatterie und Elektronische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4773326

Anmeldetag

30. Juni 2025

Veröffentlichung

5. März 2026

Rechtsraum

EP

IPC

H01M10/0587, H01M10/052

Abstract

A secondary battery and an electronic apparatus are provided. The secondary battery includes a housing made of a metal material, a wound electrode assembly, a first tab, and a first layer. The housing includes a first wall and a first conductive member provided on the first wall. The first tab includes a first extension section, a second extension section, and a third extension section. The first extension section includes a first end connected to a first electrode plate, and the first extension section extends from the first end toward a first side in a thickness direction of the electrode assembly and is inclined with respect to the thickness direction. The second extension section includes a second end connected to the first extension section. Viewed along a third direction, the second extension section extends from the second end toward the first side and is inclined with respect to the thickness direction. The third extension section is electrically connected to the first conductive member and includes a third end connected to the second extension section. A distance between the third end and the first wall is greater than a distance between the second end and the first wall. The first layer is provided on a surface of the second extension section facing the electrode assembly and extends to the first extension section and the third extension section. The reliability can be improved, and the service life can be prolonged.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China

Fachgebiete