Negativelektrodenfolie und Herstellungsverfahren dafür und Verwendung davon

Details

Veröffentlichungs-Nr.

EP4718520

Anmeldetag

18. September 2024

Veröffentlichung

30. Mai 2025

Rechtsraum

EP

Abstract

Disclosed are an anode electrode sheet, a preparation method therefor and use thereof. The anode electrode sheet includes: a current collector having a first side and a second side opposite to each other; a first active material layer, a second active material layer, and a first artificial SEI layer, the first active material layer, the second active material layer, and the first artificial SEI layer are sequentially arranged on the first side of the current collector in a direction away from the current collector, the first active material layer includes metallic lithium, the second active material layer includes a metallic lithium alloy, and the first artificial SEI layer includes a lithide. The use of this anode electrode sheet can avoid the problems such as continuous thickening of the SEI film, persistent growth of lithium dendrites, dead lithium, and penetration of the separator by lithium dendrites, etc., thereby being conducive to improving the cycle stability of a lithium metal battery employing such an anode electrode sheet.

Anmelder

Firma

Guangzhou Automobile Group Co., Ltd.

Land

🇨🇳 China