Li1.2Ni0.2Mn0.6O2 powders are coated with spinel ZnAl2O4.
The electrochemical performances of Li1.2Ni0.2Mn0.6O2 are improved remarkably after coating.
The discharge capacity of Li1.2Ni0.2Mn0.6O2 at 10 C is enhanced from 15 to 84 mAhg−1 after coating.