Effects of aluminum substitution in nickel-rich layered LiNi_<i>x</i>Al_1−<i>x</i>O₂ (<i>x</i> = 0.92, 0.95) positive electrode materials for Li-ion batteries on high-rate cycle performance

Abstract

Nano-scale Al-rich layers on the surface of LiNi 0.92 Al 0.08 O 2 and substituted-Al in the crystal suppress both the surface degradation and bulk degradation, resulting in the excellent cycling performance Ni-rich electrode material.