Patent ID: 11909044
Assignee: UMICORE KOREA LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC C  H

Claim 0:
1. A precursor compound for manufacturing a lithium transition metal-based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor being one of a metal-bearing M′-hydroxide, -oxyhydroxide or -carbonate, with M′=Ni1-x-y-zMnxCoyAz with x>0, y>0, 0.70≤1x-y-z≤0.95, 0≤z<0.1, and A comprising one or more of Ti, Mg, W, Zr, Cr, V or Al, and the precursor comprising
a core comprising a metal-bearing compound M′c and
a shell comprising a metal-bearing compound M′s,, wherein M′c=Ni1-xc-yc-zcMnxcCoycAzc with 0<xc≤0.2 , 0<yc≤0.2, 0≤zc≤0.1 and 0.75≤1-xc-yc-zc≤0.95, and M′s=Ni1-xs-ys-zsMnxsCoysAzs with 0<xs≤0.25, 0.75<ys≤0.95, 0≤zs<0.1 and 0≤1-xs-ys-zs≤0.10.