Recent Developments in the Effects of Different Dopants on the Structure and Property of Lithium Titanate Material

Abstract

The lithium titanium spinel Li4Ti5O[Formula: see text] has attracted more and more attention as anode materials applied in lithium ion batteries. Li4Ti5O[Formula: see text] material has been found to be able to intercalate lithium ions without deformation of the lattice. However, compared with graphite and other anode materials, the low conductivity of Li4Ti5O[Formula: see text] restricts its charging and discharging rate. Doping is deemed to be a businesslike method to enhance ionic and electronic conductivity of Li4Ti5O[Formula: see text]. This paper reviews the effects of Li4Ti5O[Formula: see text] with different doping ions on different crystal lattice states. And it has been found by a summary that the doping objective of doping ions at Li4Ti5O[Formula: see text] is also different. Moreover, the applications of ion doping in different fields of Li4Ti5O[Formula: see text] are prospected.