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Citation: YANG Shao-Bin, JIANG Na. Influence of Reaction Atmosphere on Electrochemical Performances of Li₄Ti₅O₁₂-C Composites[J]. Chinese Journal of Applied Chemistry, ;2009, 26(7): 835-839. shu

Influence of Reaction Atmosphere on Electrochemical Performances of Li₄Ti₅O₁₂-C Composites

YANG Shao-Bin ^, ,
JIANG Na

1.
College of Materials Science and Engineering, Liaoning Technical University, Fuxin 123000

Corresponding author: YANG Shao-Bin,
Received Date: 20 July 2008
Available Online: 2 November 2008

This paper deals with the differences of physical properties and electrochemical performances of two Li₄Ti₅O₁₂-C composites synthesized under different reaction atmospheres.The composites were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),BET,electric conductivity and electrochemical tests.Results show that the size,BET and electric conductivity of the sample sintered under N₂ were all higher than those of sample sintered under air.The rate property of the sample sintered under N₂ is better than that of the sample sintered under air.The initial specific capacity of the sample sintered under N₂ is 166.8 mA·h/g at 0.1 C.Cycle efficiency of the two samples are similar after cycled 50 s at 1 C.
- Li-ion battery,
- Li₄Ti₅O₁₂,
- reaction atmosphere,
- C₆H₁₂O₆,
- electric conductivity
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Influence of Reaction Atmosphere on Electrochemical Performances of Li₄Ti₅O₁₂-C Composites