Kathodenaktivmaterial für eine Sekundärbatterie, Kathode für eine Sekundärbatterie und Lithiumsekundärbatterie damit

Details

Veröffentlichungs-Nr.

EP4772477

Anmeldetag

18. Dezember 2025

Veröffentlichung

8. Juli 2026

Rechtsraum

EP

IPC

C01G53/50

Abstract

A cathode active material for a secondary battery according to one embodiment of the present disclosure includes a lithium metal oxide and has a C-axis lattice retention ratio (R<CL>) of 95% to 97%, as defined by Equation 1 below. R CL = C min / C max × 100 <img class="EMIRef" id="51ee46e0-3fd6-40b8-ad8e-5f161359beda-ia01" /> in Equation 1, R<CL> denotes the C-axis lattice retention ratio, and C<min> and C<max> respectively denote the minimum and maximum values of the C-axis lattice constant of the cathode active material, as observed by X-ray diffraction (XRD) analysis while the charge voltage is increased to a terminal voltage.

Anmelder

Firmen

SK innovation Co., Ltd.
SK On Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete