CPC H01M 4/366 (2013.01) [C01G 51/50 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/628 (2013.01); H01M 10/0525 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] | 9 Claims |
1. 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.
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