Batteriestromkollektor und Herstellungsverfahren Dafür, Sekundärbatterie, Batteriemodul, Batteriepack und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4718543

Anmeldetag

29. Oktober 2021

Veröffentlichung

1. April 2026

Rechtsraum

EP

IPC

H01M4/64, H01M4/66, H01M4/82H01M4/82

Abstract

This application provides a battery current collector and a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. The battery current collector includes a foam metal layer (1) and a strength enhancement layer (2), where the strength enhancement layer (2) is a sheet-shaped metal layer, and the strength enhancement layer (2) and the foam metal layer (1) are stacked and metallurgically bonded, alleviating a problem of poor mechanical performance of current collectors in the related art. The strength enhancement layer (2) and the foam metal layer (1) are connected by metallurgical bonding, which helps ensure not only structural strength of the strength enhancement layer (2) and the foam metal layer (1), but also good conductivity between the strength enhancement layer (2) and the foam metal layer (1). Further, the manner of metallurgical bonding helps reduce production costs.

Anmelder

Firma

Contemporary Amperex Technology (Hong Kong) Limited

Land

🇭🇰 Hongkong