Elektrodenanordnung und Batteriezelle

Details

Veröffentlichungs-Nr.

EP4738494

Anmeldetag

7. Juni 2024

Veröffentlichung

2. Januar 2025

Rechtsraum

EP

IPC

H01M10/04, H01M50/105

Abstract

This application discloses an electrode assembly and a battery cell. The electrode assembly includes a first electrode plate unit and a second electrode plate unit that are wound together. A polarity of the first electrode plate unit is opposite to that of the second electrode plate unit. At least one of the first electrode plate unit or the second electrode plate unit includes an electrode plate, a tab, and a separator. The separator includes a first separator film and a second separator film arranged on two opposite sides of the electrode plate respectively in a thickness direction of the electrode plate. The first separator film includes a first extension portion extending beyond an edge of the electrode plate along a width direction of the electrode plate. The second separator film includes a second extension portion extending beyond the edge of the electrode plate along the width direction of the electrode plate. The tab is disposed on the electrode plate. The tab extends out of the separator from between the first extension portion and the second extension portion. A part of the first extension portion is connected to a part of the second extension portion to form sealing regions. There are at least two sealing regions. The sealing regions avoid the tab. The electrode assembly provided herein can effectively improve anti-drop performance of the battery cell.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China

Fachgebiete