Verfahren zur Herstellung von Mischoxidteilchen auf Lithium-Kobalt-Basis

Details

Veröffentlichungs-Nr.

EP4725909

Anmeldetag

30. Mai 2024

Veröffentlichung

12. Dezember 2024

Rechtsraum

EP

IPC

C01G51/00, H01M4/525

Abstract

Provided is a method for producing lithium-cobalt-based composite oxide particles capable of reducing the weight and thickness of a positive electrode material when used as a positive electrode active material for a non-aqueous lithium secondary battery or an all-solid-state battery. The method for producing lithium-cobalt-based composite oxide particles includes: a thermally decomposing step of thermally decomposing a raw material cobalt compound having an average particle diameter as determined by SEM observation of 0.05 to 1.00 µm to obtain an oxide of cobalt, the raw material cobalt being cobalt hydroxide or a salt of cobalt; a mixture preparing step of preparing a mixture containing at least a lithium compound and the oxide of cobalt obtained in the thermally decomposing step; and a firing step of firing the mixture prepared in the mixture preparing step at 500 to 850°C.

Anmelder

Firma

Nippon Chemical Industrial Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete