Mechanochemical Synthesis and Electrochemical Performances of Li4Ti5O12 Anode Materials for Lithium Ion Batteries

Yang Li; Hua Qing Xie; Jing Li; Ji Feng Wang

doi:10.4028/www.scientific.net/AMR.512-515.1660

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 512-515Mechanochemical Synthesis and Electrochemical...

Mechanochemical Synthesis and Electrochemical Performances of Li₄Ti₅O₁₂ Anode Materials for Lithium Ion Batteries

Abstract:

Li₄Ti₅O₁₂ anode materials have been synthesized via mechnochemical method and subsequent sintering with nanosized TiO₂ and Li₂CO₃ as reagents. XRD measurements indicated that well crystallized Li₄Ti₅O₁₂ could be obtained above 800 °C. The sizes of Li₄Ti₅O₁₂ particles increased with sintered temperature augmenting. Various particle distribution and particle sizes are presented in SEM images. In electrochemical investigations, Li₄Ti₅O₁₂ sintered at 800 °C presented excellent discharge-charge performances and rate capability. The discharge capacity could achieve 168 mAh/g and 140 mAh/g at 0.1 C and 1.0 C rate, respectively, which was attributed to its uniform particle size distribution and relatively small particle size.

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Periodical:

Advanced Materials Research (Volumes 512-515)

Pages:

1660-1663

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.512-515.1660

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Online since:

May 2012

Authors:

Yang Li, Hua Qing Xie, Jing Li, Ji Feng Wang

Keywords:

Anode, Li₄Ti₅O₁₂, Lithium-Ion Battery, Mechanochemical Synthesis

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