Positivelektroden-Aktivmaterialien, Positivelektroden und Wiederaufladbare Lithiumbatterien

Details

Veröffentlichungs-Nr.

EP4822774

Anmeldetag

2. April 2026

Veröffentlichung

14. Oktober 2026

Rechtsraum

EP

Abstract

A positive electrode active material comprises a first positive electrode active material comprising a first lithium nickel-based composite oxide and being in a form of secondary particles that are agglomerations of primary particles. The primary particles has an average particle diameter of about 0.6 µm to about 1.05 µm as measured by electron backscatter diffraction. The positive electrode active material also comprises a second positive electrode active material including a second lithium nickel-based composite oxide and being in a form of single particles. An average particle diameter (D<50>) of the secondary particles of the first positive electrode active material is greater than an average particle diameter (D<50>) of the single particles of the second positive electrode active material. Based on 100 wt% of a total of the first positive electrode active material and the second positive electrode active material, the positive electrode active material comprises about 10 to about 45 wt% of the first positive electrode active material and about 55 to about 90 wt% of the second positive electrode active material.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea