Kathodenaktivmaterial, Verfahren zur Herstellung davon und Kathode und Lithiumsekundärbatterie damit

Details

Veröffentlichungs-Nr.

EP4787470

Anmeldetag

31. Oktober 2024

Veröffentlichung

8. Mai 2025

Rechtsraum

EP

Abstract

The present invention relates to a positive electrode active material including a lithium composite transition metal oxide in the form of a single particle formed of 10 or fewer primary particles, having a composition represented by Formula 1 described herein, and a coating layer including a coating element (M) formed on the lithium composite transition metal oxide, wherein the coating element (M) is at least one selected from Al, W, Cu, Zr, Ni, Co, Sr, Mn, Y, Ti, Mg, Mo, B, Sn, Fe, Zn, and Si, and a single particle formation degree (χ) is greater than 0.5 according to Equation 1 described herein, a method for preparing the same, and a positive electrode and a lithium secondary battery which include the same.

Anmelder

Firma

LG Chem, Ltd.

Land

🇰🇷 Südkorea