Electrode active material and process for manufacturing said electrode active material

An electrode active material comprising:

• (A) a core material according to general formula Li1+x1 TM1−x1O2, wherein TM is a combination of Ni and at least one of Mn, Co and Al, and, optionally, at least one more metal selected from Mg, Ti, Zr, Nb, Ta, and W, and x1 is in a range from −0.05 to 0.2, and
• (B) particles of cobalt compound(s) and of aluminum compound(s) and of titanium compound(s) or zirconium compound(s), wherein the molar ratio of lithium to cobalt in the particles ranges from zero to below 1 and wherein in particles (B) a molar ratio of Co to a sum of Al and Zr or Ti ranges from 2:1 to 50:1, and wherein the particles are attached to the surface of the core material;
• wherein the weight ratio of core (A) and particles (B) ranges from 1000:1 to 20:1.