Elektrodenfolie, Batteriezelle und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4773188

Anmeldetag

15. Oktober 2024

Veröffentlichung

1. Mai 2025

Rechtsraum

EP

Abstract

The present application provides an electrode plate, a battery cell, and an electric device, the electrode plate including a current collector, a first transition layer, a second transition layer, two active substance layers, a first conductive member, and a second conductive member. The current collector includes a support layer, a first conductive layer, and a second conductive layer. The current collector further includes a first segment and a second segment. The first transition layer is located in the first segment. The second transition layer is located in the first segment. One active substance layer is disposed on the first transition layer, and the other active substance layer is disposed on the second transition layer. The first conductive member is disposed on the first conductive layer. The second conductive member is disposed on the second conductive layer. The first conductive member and the second conductive member are welded to form a plurality of weld marks, where at least one weld mark is further connected to the current collector. The current collector further includes a first section and a second section, where a projection of an edge section of the active substance layer adjacent to the weld marks coincides with a projection of the first section, and the second section is provided with the weld marks. The tensile strength of the first section is less than the tensile strength of the second section. The above electrode plate can improve safety.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China