Sekundärbatterie und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4773315

Anmeldetag

9. Dezember 2024

Veröffentlichung

3. Juli 2025

Rechtsraum

EP

IPC

H01M10/0585, H01M10/0525

Abstract

This application proposes a secondary battery and a preparation method thereof. An outermost electrode plate of an electrode assembly is a first outer electrode plate, where the first outer electrode plate includes a first current collector and a first active material layer; the first current collector has a first surface facing a first direction and a second surface facing a second direction; the first active material layer is disposed on the second surface; the first direction is a stacking direction of electrode plates and separators of the electrode assembly; and the second direction is opposite to the first direction. The secondary battery further includes a plurality of first adhesive layers, where a portion of the first adhesive layer is bonded between the first surface and an inner wall of an accommodating portion, and another portion of the first adhesive layer is bonded to the first surface and at least a portion of the separator. The provision of the first adhesive layer can reduce the shrinkage of the separator and improve drop resistance of the secondary battery.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China

Fachgebiete