Oxide mixture and complex oxide coatings for cathode materials

A cathode active material comprising:

• a plurality of cathode active compound particles;
• and
• a coating disposed over each of the cathode active compound particles;
• the coating comprising a mixture of Al2O3 and ZrO2 or a mixture of La2O3 and Al2O3;
• wherein if the coating is a mixture of La2O3 and Al2O3, the coating comprises aluminum from 40 ppm to 300 ppm and lanthanum from 200 ppm to 2000 ppm, and
• wherein if the coating is a mixture of Al2O3 and ZrO2, the coating comprises aluminum from 40 ppm Al to 300 ppm Al and from 1000 ppm to 2000 ppm zirconium.