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

摘要

We report a simple strategy to synthesize high tap density Li4Ti5O_(12) particles with excellent electrochemical performance, whose tap density could be controlled by the starting materials. A series of high tap density Li4Ti5O_(12) 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 Li4Ti5O_(12) showed similar performance with normal Li4Ti5O_(12) particles. The highest tap density of Li4Ti5O_(12) 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.