Patent ID: 10333135

Abstract:
A lithium transition metal oxide powder for a positive electrode material in a solid-state lithium ion battery, the powder consisting of particles having a core and a surface layer consisting of an inner and an outer layer, wherein the powder has a D50 between 35 and 60 μm, wherein the core has the general formula LixCoO2 with 0.99<x<1.04 and wherein the inner surface layer comprises LiyNi1−a−bMnaCobO2, with 0<y<1, 0.3<a<0.8 and 0<b<0.3; and wherein the outer surface layer consists of discrete monolithic sub-micron sized particles having the general formula Li1+z(Ni1−m−nMnmCon)1−zO2, with 0≤z≤0.05, 0<m≤0.50 and 0<n≤0.70, preferably 0<n≤0.30.10