Negativelektrodenfolie und Herstellungsverfahren Dafür, Bipolare Elektrodenfolie und Herstellungsverfahren dafür sowie Batterie und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4718519

Anmeldetag

12. September 2024

Veröffentlichung

22. Mai 2025

Rechtsraum

EP

Abstract

Disclosed are an anode electrode sheet and a preparation method therefor, a bipolar electrode sheet and a preparation method therefor, a battery and an electric device. The anode electrode sheet comprises: a first current collector comprising a first side and a second side opposite to each other; a first active material layer and a second active material layer, wherein the first active material layer and the second active material layer are sequentially disposed on the first side in a direction away from the first current collector, the first active material layer comprises metallic lithium, and the second active material layer comprises a metallic lithium alloy. The use of this anode electrode sheet or bipolar electrode sheet may avoid problems such as continuous thickening of the SEI film, persistent growth of lithium dendrites, formation of dead lithium, and penetration of the separator by lithium dendrites, thereby helping to improve the cycle stability of the battery using the anode electrode sheet or bipolar electrode sheet.

Anmelder

Firma

Guangzhou Automobile Group Co., Ltd.

Land

🇨🇳 China