Preparation techniques of the submicron lithium titanate materials by electro-spinning

1st International Conference on New Material and Chemical Industry

材料科学;化学工业

Wang, Yudong^1 ; Yang, Kai^2 ; Gao, Fei^2 ; Liu, Hao^2 ; Zhang, Mingjie^2

University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing

100083, China^1

China Electric Power Research Institute, Haidian District, Beijing

100192, China^2

关键词: Charge discharge tests;    Discharge process;    Fiber diameters;    Lithium acetate;    Lithium titanate;    Polyvinyl pyrrolidone;    Preparation technique;    Titanium source;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/167/1/012016/pdf
DOI  :  10.1088/1757-899X/167/1/012016

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Combining sol-gel process and electro-spinning, the submicron lithium titanate materials are prepared with lithium acetate and titanium tetraisopropanolate respectively as the lithium and titanium sources, and polyvinylpyrrolidone (PVP) as the template. It's found by scanning electron microscope(SEM )that, the prepared lithium titanate materials are characterized by the fiber diameter 150∼200nm, a large number of irregular indentations in the surface, and the larger specific surface area than that before calcination. The lithium titanate cell receives charge-discharge test and cyclic voltammetry. The capacity of the submicron lithium titanate materials is up to 160mAh•g-1 at the rate of 0.1C, and it's revealed by cyclic voltammetry that the cell in the charge or discharge process undergoes a single redox reaction, but having good reversibility.