Positivaktivmaterial und Positivelektrode und Lithiumsekundärbatterie damit

Details

Veröffentlichungs-Nr.

EP4726805

Anmeldetag

15. Juli 2024

Veröffentlichung

23. Januar 2025

Rechtsraum

EP

Abstract

The present invention relates to a positive electrode material, and a positive electrode and a lithium secondary battery including the same. The positive electrode material includes a first positive electrode active material in the form of a single particle, and a second positive electrode active material having a greater average particle size (D₅₀) than the first positive electrode active material. The first positive electrode active material is a lithium-excess manganese oxide simultaneously including a Li₂MnO₃ phase and a LiMO₂ (where M is an element including at least one selected from Ni, Co and Mn) phase, and the second positive electrode active material is a lithium nickel oxide including 50 mol% or more and less than 80 mol% of nickel with respect to the total moles of metals except for lithium.

Anmelder

Firma

LG Chem, Ltd.

Land

🇰🇷 Südkorea