Preparation of TiO2 Nanoflakes and Their Influence on Lithium Ion Battery Storage Performance

doi:10.1007/s40242-015-4421-y

Chemical Research in Chinese Universities ›› 2015, Vol. 31 ›› Issue (3): 332-336.doi: 10.1007/s40242-015-4421-y

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Preparation of TiO₂ Nanoflakes and Their Influence on Lithium Ion Battery Storage Performance

LI Yi¹, HAN Xiangbo¹, LIANG Jicai¹, LENG Xuning¹, YE Kaiqi², HOU Changmin³, YU Kaifeng¹

1. Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130025, P. R. China;
2. State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China;
3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China

Received:2014-11-05 Revised:2014-12-22 Online:2015-06-01 Published:2014-12-29
Contact: YU Kaifeng E-mail:yukf@jlu.edu.cn
Supported by:
Supported by the Open Project Program of the State Key Laboratory of Supramolecular Structure and Materials, China (No.sklssm²01438) and the Open Project Program of the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, China(No.2013-27).

Abstract

Abstract:

TiO₂ nanoflakes were prepared by hydrothermal precipitation method using Ti(SO₄)₂ as titanium source and NaOH solution as alkaline medium. Their surface morphology, grain size measured after high temperature calcination and effect on the electrochemical performance of Li ion battery were discussed. TiO₂ nanoflakes were characterizated by means of transmission electron microscopy(TEM), X^-ray powder diffraction(XRD), N₂ adsorption-desorption isothermal assay, cyclic voltammetry(CV) and cycle performance test. The result of electrochemical performance test shows that the prepared TiO₂ nanoflakes have high discharge specific capacity and good cycle performance. Discharge specific capacity for the first circle at the discharge rate of 0.1 C is 261.5 mA·h·g^-1. After 90 cycles, the discharge capacity reduces to 172.2 mA·h·g^-1.

Key words: Heat treatment, TiO₂ nanoflake, Lithium-ion battery

LI Yi, HAN Xiangbo, LIANG Jicai, LENG Xuning, YE Kaiqi, HOU Changmin, YU Kaifeng. Preparation of TiO₂ Nanoflakes and Their Influence on Lithium Ion Battery Storage Performance[J]. Chemical Research in Chinese Universities, 2015, 31(3): 332-336.

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Preparation of TiO₂ Nanoflakes and Their Influence on Lithium Ion Battery Storage Performance

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