Sekundärbatterie und Elektronische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4773281

Anmeldetag

12. März 2025

Veröffentlichung

9. Oktober 2025

Rechtsraum

EP

IPC

H01M10/0525, H01M4/13

Abstract

A secondary battery and an electronic device are disclosed. The secondary battery includes an electrode assembly and a negative tab. The electrode assembly includes a negative electrode plate. The negative electrode plate includes a negative current collector and a first negative active layer disposed on at least one surface of the negative current collector. The negative tab is integrally formed with the negative current collector and extends out of the electrode assembly along a first direction. The first negative active layer includes a first region corresponding to the negative tab in the first direction. The first region is provided with a plurality of strip-shaped grooves. In the first direction, the negative current collector includes a first edge located on the same side as the negative tab. Each of the strip-shaped grooves includes a first end located on the same side as the negative tab. A distance between the first end of at least one strip-shaped groove located in the first region and the first edge is greater than or equal to 0.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China

Fachgebiete