Elektrodenfolie und Herstellungsverfahren Dafür, Sekundärbatterie und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4773202

Anmeldetag

20. März 2025

Veröffentlichung

13. November 2025

Rechtsraum

EP

Abstract

This application discloses an electrode plate, a manufacturing method thereof, a secondary battery, and an electric apparatus. The electrode plate includes a current collector, an active material layer, a conductive member, and an insulating layer. The current collector includes a first portion and a second portion adjacently disposed along a first direction. The active material layer is disposed on the first portion, and the active material layer includes a first covering portion and a second covering portion sequentially disposed along the first direction, where along a thickness direction of the current collector, a thickness of the second covering portion is less than a thickness of the first covering portion. The conductive member is connected to the second portion. The insulating layer is disposed on the second portion, on at least part of a surface of the conductive member away from the current collector, and on at least part of a surface of the second covering portion away from the current collector. Compared with existing electrode plates, the electrode plate with the above structure can reduce a risk of excessive thickness at an edge of the active material layer caused by the insulating layer being applied onto the active material layer during manufacturing, and is conducive to increasing the energy density of the secondary battery.

Anmelder

Firma

Ningde Amperex Technology Limited

Land

🇨🇳 China