Li4Ti5O12/C Composite Anode Material Synthesized Involving Absorbent Cotton for Li-Ion Battery

A puissant specific capacity spherical Li4Ti5O12 anode material of Lithium-Ion battery was successfully synthesized by two methods include a high-temperature solid-phase method using solid phase lithium and titanium sources, and a sol-gel method with liquid phase lithium and titanium sources. The carbon coating modification of Li4Ti5O12 anode material was carried out by adding absorbent cotton during the reaction process, and the effect of absorbent cotton addition on the structure, morphology and electrochemical performance of Li4Ti5O12 was studied. The composite prepared by sol-gel represents a superior first discharge specific capacity of 173 mAh·g−1 at 0.2 C rates, approximately 68 mAh·g−1 at 10 C rates, and the capacity of sample remained 103 mAh·g−1 after 100 cycles of 1 C rate charge/discharge process.