Elektrodenfolie, Batteriezelle, Batterie, Elektrische Vorrichtung und Herstellungsverfahren für Elektrodenfolie

Details

Veröffentlichungs-Nr.

EP4756897

Anmeldetag

20. März 2024

Veröffentlichung

13. Februar 2025

Rechtsraum

EP

Abstract

Provided in the embodiments of the present application are an electrode sheet, a battery cell, a battery, an electric device, and a preparation method for the electrode sheet, which can effectively ameliorate the problem of powder shedding during a cutting process of an electrode sheet to be cut, thereby reducing the risk of an internal short circuit occurring in a battery cell caused by overlapping between a positive electrode sheet and a negative electrode sheet, and thus improving the yield of the battery cell. The electrode sheet comprises: a first current collector, which comprises a first body and a tab region connected to an edge of the first body, the first body comprising a coated region and an edge region; and a first electrically conductive layer disposed on a surface of the coated region, wherein the thickness of the electrode sheet in the edge region is less than that of the electrode sheet in the coated region.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China