Ni-Basiertes Kathodenmaterial für Wiederaufladbare Lithium-Ionen-Batterien

Details

Veröffentlichungs-Nr.

EP3428124

Aktenzeichen

EP18177146

Anmeldetag

12. Juni 2018

Veröffentlichung

19. August 2020

Erteilung

19. August 2020

Rechtsraum

EP

IPC

C01G45/12C01G51/00C01G53/00H01M4/131H01M4/505H01M4/525H01M10/052H01M10/0525

Abstract

The invention provides a positive electrode material for lithium ion batteries, comprising a lithium transition metal-based oxide powder having a general formula Li<1+a>((Ni<z>(Ni<0.5>Mn<0.5>)<y>CO<x>)<1-k>A<k>)<1-a>O<2>, wherein A is a dopant, with -0.025≤a≤0.025, 0.18≤x≤0.22, 0.42≤z≤0.52, 1.075<z/y<1.625, x+y+z=1 and k≤0.01. Different embodiments provide the following features: - the lithium transition metal-based oxide powder has a carbon content ≤1000 ppm or even ≤400 ppm; - the lithium transition metal-based oxide powder has a sulfur content between 0.05 and 1.0 wt%; - the powder further comprises between 0.15 and 5 wt% of a LiNaSO<4>secondary phase.

Anmelder

Firmen

Umicore
Umicore Korea Ltd.

Land

🇧🇪 Belgien

Fachgebiete