Negativelektrodenaktivmaterial, Negativelektrode mit dem Negativelektrodenaktivmaterial und Wiederaufladbare Lithiumbatterie mit dem Negativelektrodenaktivmaterial

Details

Veröffentlichungs-Nr.

EP4769558

Anmeldetag

27. Oktober 2025

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

Abstract

A negative electrode active material comprising: a composite that includes a carbon-based material and silicon nanoparticles. The silicon nanoparticles have a pipe-shaped structure extending in one direction by a length. A wall portion of the silicon nanoparticles includes an inner wall forming a through hole having a diameter, and the wall portion has a thickness from the inner wall to an outer wall. Also disclosed is a negative electrode comprising a current collector having a negative electrode active material layer comprising the negative electrode active material on it. Further disclosed is a rechargeable lithium battery comprising the negative electrode and a positive electrode.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea