Hydrothermal Synthesis of Pure Li₄Ti₅O₁₂ and Its Electrochemical Performance

Authors

Wen-jun XIE, Institute of Electrochemical and Energy Technology，Department of Chemical Engineering，Shanghai Jiao Tong University，Shanghai 200240，China;
Yu-shi HE, Institute of Electrochemical and Energy Technology，Department of Chemical Engineering，Shanghai Jiao Tong University，Shanghai 200240，China;
Hong WANG, Institute of Electrochemical and Energy Technology，Department of Chemical Engineering，Shanghai Jiao Tong University，Shanghai 200240，China;
Xiao-zhen LIAO, Institute of Electrochemical and Energy Technology，Department of Chemical Engineering，Shanghai Jiao Tong University，Shanghai 200240，China;
Zi-feng MA, Institute of Electrochemical and Energy Technology，Department of Chemical Engineering，Shanghai Jiao Tong University，Shanghai 200240，China;Follow

Corresponding Author

Zi-feng MA(zfma@sjtu.edu.cn)

Abstract

Spinel Li₄Ti₅O₁₂ was prepared by hydrothermal method using commercial anatase (TiO₂) and lithium hydroxide (LiOH) as raw materials. The effects of the LiOH concentration of lithium hydroxide, hydrothermal reaction time and calcination temperature on the structure and electrochemical performance of Li4Ti5O12 were investigated. The formation process of Li₄Ti₅O₁₂ was also proposed. The micro-structure and morphology wereas characterized by XRD, SEM, TEM techniques, and the electrochemical performance was analyzed by galvanostatic charge-discharge test. The results show that the pure phase spinel Li₄Ti₅O₁₂ can be obtained when the LiOH concentration of lithium hydroxide is 0.2 mol.L^-1, the hydrothermal time is 12 h, and the calcination temperature is 700 ^oC. The Li₄Ti₅O₁₂ annealed at 700 oC has excellent electrochemical performance., theThe discharge specific capacity reached 146.3 mAh.g^-1 at the current density of 1C, and exhibited superior high-rate performance of 101.3 mAh.g^-1 at 40C.

Graphical Abstract

Keywords

high power, hydrothermal method, Li4Ti5O12, anode material, lithium-ion battery

DOI Link

https://doi.org/10.61558/2993-074X.2104

Publication Date

2013-04-28

Online Available Date

2012-03-30

Revised Date

2012-03-22

Received Date

2012-01-19

Recommended Citation

Wen-jun XIE, Yu-shi HE, Hong WANG, Xiao-zhen LIAO, Zi-feng MA. Hydrothermal Synthesis of Pure Li₄Ti₅O₁₂ and Its Electrochemical Performance[J]. Journal of Electrochemistry, 2013 , 19(2): 135-140.
DOI: 10.61558/2993-074X.2104
Available at: https://jelectrochem.xmu.edu.cn/journal/vol19/iss2/2