Herstellungsverfahren dafür und Herstellungsverfahren für ein Positivelektrodenaktivmaterial damit

Details

Veröffentlichungs-Nr.

EP4725910

Anmeldetag

22. September 2025

Veröffentlichung

15. April 2026

Rechtsraum

EP

Abstract

A method for preparing a single-particle type positive electrode active material precursor includes (a) mixing a nickel-based hydroxide and an inactive lithium salt to prepare a mixture; and (b) performing a first heat treatment on the mixture to obtain a nickel-based oxide in a form of single particles. According to some example embodiments, a positive electrode active material precursor and a method for preparing the same, and a method for preparing a positive electrode active material including the same minimize or reduce the production process, thereby ensuring long cycle-life characteristics and improving high-temperature storage characteristics. A rechargeable lithium battery using the positive electrode active material can exhibit high initial charging and discharging capacity and efficiency, and can implement long cycle-life characteristics.

Anmelder

Firmen

SAMSUNG SDI CO., LTD.
Seoul National University R&DB Foundation

Land

🇰🇷 Südkorea