Journal
ELECTROCHIMICA ACTA
Volume 212, Issue -, Pages 41-46Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.06.153
Keywords
aerosol spray; lithium ion battery; anode material; Li4Ti5O12/TiO2 composite; mesoporous structure
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Funding
- National Natural Science Foundation of China [21271009, 21471006]
- Doctoral Fund of the Ministry of Education of China [20123424110002]
- Programs for Science and Technology Development of Anhui Province [1501021019]
- Program for Innovative Research Team of Anhui Education Committee
- Program for Talents Team of University in Anhui
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Mesoporous spherical Li4Ti5O12/TiO2 composites have been synthesized by a facile aerosol spraying hydrolysis method following calcine at 600 degrees C for 8 h. The as-obtained samples were characterized by XRD, SEM, TEM, BET surface area, and XPS. The mesoporous spherical Li4Ti5O12/TiO2 exhibits superior electrochemical performance as an anode material for lithium-ion batteries than both the simple Li4Ti5O12 and non-porous Li4Ti5O12/TiO2. The discharge specific capacity of the mesoporous spherical Li4Ti5O12/TiO2 composite is 161, 143, and 111 mAh/g at 1C, 5C and 20C, respectively, and retains 93.04% (145.27 mAh/g) capacity after 120 cycles at 2C. Therefore, the as-obtained mesoporous spherical dual-phase Li4Ti5O12/TiO2 composite is potential to be applied as an efficient anode material for Li ion batteries. (C) 2016 Elsevier Ltd. All rights reserved.
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