Modification of Li_xNi_1-yCo_yO_2 by applying a surface coating of MgO

摘要

Mg(OH)_2 is coated on the surface of semi-crystalline Li_xNi_1-yCo_yO_2. By further heating the coated sample, the surface is modified. This lowers the initial discharge capacity and improves the cycle-reversibility of a test lithium-ion cell, which was made with Surface-modified Li_xNi_1-yCo_yO_2 as the cathode material.