Positivelektrodenaktivmaterialien für Wiederaufladbare Festkörperbatterien, Herstellungsverfahren für Positivelektrodenaktivmaterialien und Wiederaufladbare Festkörperbatterien

Details

Veröffentlichungs-Nr.

EP4715888

Anmeldetag

23. September 2025

Veröffentlichung

25. März 2026

Rechtsraum

EP

IPC

(KWON TAERI et al.) [E](NAM SANG CHEOL et al.)

Abstract

Disclosed are a positive electrode active material for an all-solid-state rechargeable battery, a method of preparing the positive electrode active material, and an all-solid-state rechargeable battery. The positive electrode active material includes a first positive electrode active material including a first lithium nickel-based composite oxide particle in a form of secondary particles formed by agglomeration of primary particles. A first coating layer is disposed on surfaces of the first lithium nickel-based composite oxide particles and includes boron. A second coating layer is disposed on the first coating layer and includes zirconium. The positive electrode active material also comprises a second positive electrode active material comprising a second lithium nickel-based composite oxide particle in a form of single particles. A third coating layer is disposed on surfaces of the second lithium nickel-based composite oxide particles and includes zirconium.

Anmelder

Firma

SAMSUNG SDI CO., LTD.

Land

🇰🇷 Südkorea