Negativelektrodenaktivmaterial, Verfahren zur Herstellung des Negativelektrodenaktivmaterials und Negativelektrode mit dem Negativelektrodenaktivmaterial

Details

Veröffentlichungs-Nr.

EP4752960

Anmeldetag

18. September 2025

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

Abstract

The present disclosure relates to a negative electrode active material, a method of manufacturing the negative electrode active material, and a negative electrode including the negative electrode active material. The negative electrode active material comprises a core formed by agglomerated first silicon particles; a shell formed by agglomerated second silicon particles; and an amorphous carbon coating layer surrounding the first silicon particles and the second silicon particles, wherein the shell is disposed on the core, and wherein an average particle diameter (D50) of the first silicon particles is greater than an average particle diameter (D50) of the second silicon particles, the average particle diameter (D50) of the first silicon particles being about 100 nm to about 140 nm, and the average particle diameter (D50) of the second silicon particles being about 40 nm to about 100 nm.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea