Kathodenaktivmaterial, Kathode damit und Lithiumsekundärbatterie

Details

Veröffentlichungs-Nr.

EP4734180

Anmeldetag

17. Juli 2024

Veröffentlichung

30. Januar 2025

Rechtsraum

EP

Abstract

The present invention relates to a positive electrode active material, which is a bimodal positive electrode active material including a first Li-rich layered manganese-based oxide in a single particle form; and a second Li-rich layered manganese-based oxide in a secondary particle form, wherein the first Li-rich layered manganese-based oxide and the second Li-rich layered manganese-based oxide contain Li<2>MnO<3> phase and LiMO<2>(where, M is an element containing one or more selected from Ni, Co, and Mn) phase at the same time, the first Li-rich layered manganese-based oxide has a smaller average particle diameter (D<50>) than that of the second Li-rich layered manganese-based oxide, and a weight ratio of the first Li-rich layered manganese-based oxide and the second Li-rich layered manganese-based oxide is 1:1.5 to 8, and the present invention relates to a positive electrode and a lithium secondary battery including the same.

Anmelder

Firma

LG Chem, Ltd.

Land

🇰🇷 Südkorea