High Tap Density Li4Ti5O12 Anode Materials Synthesized for High Rate Performance Lithium Ion Batteries

Abstract

AbstractWe report a simple strategy to synthesize high tap density Li4Ti5O12 particles with excellent electrochemical performance, whose tap density could be controlled by the starting materials. A series of high tap density Li4Ti5O12 particles are successfully synthesized with high tap density TiO2 through hydrothermal process with a short post‐annealing. The electrochemistry performances of them were carefully researched in this work. The high tap density Li4Ti5O12 showed similar performance with normal Li4Ti5O12 particles. The highest tap density of Li4Ti5O12 particles is 1.4 g⋅cm−3, whose capacity is 134 mAh⋅g−1 at 10 C. Those high tap density Li4Ti5O12 display their promising commercial application in high‐energy density lithium ion batteries.