Negative Elektrode und Wiederaufladbare Lithiumbatterie damit

Details

Veröffentlichungs-Nr.

EP4726803

Anmeldetag

16. Juli 2025

Veröffentlichung

15. April 2026

Rechtsraum

EP

IPC

H01M4/133, H01M4/36, H01M4/587

Abstract

Disclosed are negative electrodes and rechargeable lithium batteries. The negative electrode includes a negative electrode current collector and a negative electrode active material layer thereon. The negative electrode active material layer includes a first graphite having a first average particle diameter and a second graphite having a second average particle diameter. The second average particle diameter is greater than the first average particle diameter. The negative electrode active material layer includes a first negative electrode active material layer on the negative electrode current collector, a second negative electrode active material layer on the first negative electrode active material layer, and an intermediate layer between the first and second negative electrode active material layers. The intermediate layer has a slope that is equal to or greater than about 2.33 in a normalized graph obtained by measuring a horizontal direction force that depends on a cutting depth.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea

Fachgebiete