Verfahren zur Herstellung eines Positivelektrodenaktivmaterials

Details

Veröffentlichungs-Nr.

EP4741349

Anmeldetag

20. August 2024

Veröffentlichung

27. Februar 2025

Rechtsraum

EP

Abstract

The present invention relates to a method for preparing a positive electrode active material, including (A) mixing a transition metal hydroxide and a lithium raw material to prepare a mixture, and (B) firing the mixture to prepare a lithium transition metal oxide in the form of a single particle, wherein the firing includes a temperature-raising phase in which firing is performed at a temperature raised to 700 °C to 1,000 °C from room temperature and a temperature-maintaining phase in which firing is performed at a constant temperature of 700 °C to 1,000 °C, and in the temperature-raising phase, the temperature-raising from room temperature to a temperature of 400 °C to 500 °C is performed in an atmosphere containing water vapor.

Anmelder

Firma

LG Chem, Ltd.

Land

🇰🇷 Südkorea