Elektrodenfolie, Zelle und Endgerätevorrichtung

Details

Veröffentlichungs-Nr.

EP4773203

Anmeldetag

24. April 2025

Veröffentlichung

26. Dezember 2025

Rechtsraum

EP

IPC

H01M4/13, H01M10/0587

Abstract

An electrode plate, a battery cell, and an electronic device are provided. The electrode plate includes a current collector and a first active material layer. A surface of the first active material layer on a side facing away from the current collector is provided with a plurality of first grooves arranged at equal intervals along a second direction. Viewed along the first direction, each first groove extends from one side of the first active material layer in a third direction to the other side of the first active material layer in the third direction. An extension direction of each first groove is inclined relative to the second direction. Extension directions of the plurality of first grooves are parallel to each other. An angle between the extension direction of the first groove and the second direction is θ, satisfying 0 < θ < 90°. A spacing between two adjacent first grooves in a second direction is W₂, and θ and W₂ satisfy: 0.5 ≤ 1/(W₂ × tanθ) ≤ 1.5, the unit of W₂ is mm. The first groove is conducive to reducing the risk of lithium deposition of the battery cell.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China

Fachgebiete