Positivelektrodenaktivmaterial und Positivelektrode und Lithiumsekundärbatterie damit

Details

Veröffentlichungs-Nr.

EP4734175

Anmeldetag

23. August 2024

Veröffentlichung

27. Februar 2025

Rechtsraum

EP

Abstract

The present invention relates to a positive electrode active material comprising: a single particle-form lithium nickel-based oxide having a Ni content of 50 mol% to 75 mol% and doped with a doping element M<1>; and a coating layer formed on the single particle-form lithium nickel-based oxide and comprising a coating element M<2>, wherein an oxidation number AON<c+d> defined by Equation (1) is 3.5 to 4.2, R defined by Equation (2) is 0.5 or less, and a ratio (M<1>/M<2>) of the weight of the doping element M<1> to the weight of the coating element M<2> is 0.2 to 1.0, and a positive electrode and a lithium secondary battery comprising the same.

Anmelder

Firma

LG Energy Solution, Ltd.

Land

🇰🇷 Südkorea