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Mechanochemical synthesis and electrochemical performances of Li4Ti5O12 anode materials for lithium ion batteries
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DOI：10.4028/www.scientific.net/AMR.512-515.1660.png)
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Abstract
En 中文
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 degrees 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 degrees 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.
Keywords:
mechanochemical synthesis
Li4Ti5O12
anode
lithium ion batteries
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