Surface structure evolution of cathode materials for Li-ion batteries

Lithium ion batteries are important electrochemical energy storage devices for consumer electronics and the most promising candidates for electrical/hybrid vehicles. The surface chemistry influences the performance of the batteries significantly. In this short review, the ewlution of the surface struture of the cathode materials at different states of the pristine, storage and electrochemical reaclions are summarized. The main methods for the surface modification are also introduced.