High Rate Performance of Ca-Doped Li4Ti5O12 Anode Nanomaterial for the Lithium-Ion Batteries

The spinel Li4Ti5O12 (LTO) has been doped by Ca2+ via a solid-state reaction route, generating highly crystalline Li3.9Ca0.1Ti5O12 powders in order to improve the electrochemical performance as an anode. The structure changes, morphologies, and electrochemical properties of the resultant powders hav...

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Bibliographic Details
Published in:Journal of nanomaterials 2018, Vol.2018 (2018), p.1-6
Main Authors: Cao, Yuan-Cheng, Tang, Shun, Gao, Xu, Wang, Jian, Nie, Dexin, Liang, Wei, Deng, Heming, Liu, Cui
Format: Article
Language:English
Subjects:
Anodes
Calcium ions
Carbon
Chemistry
Crystal structure
Electrochemical analysis
Electrodes
Electrolytes
Lithium
Lithium-ion batteries
Morphology
Nanomaterials
Particle size
Rechargeable batteries
Scanning electron microscopy
Voltammetry
X-ray diffraction
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Summary:The spinel Li4Ti5O12 (LTO) has been doped by Ca2+ via a solid-state reaction route, generating highly crystalline Li3.9Ca0.1Ti5O12 powders in order to improve the electrochemical performance as an anode. The structure changes, morphologies, and electrochemical properties of the resultant powders have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and cyclic voltammetry (CV), respectively. Crystal structure and composition were analyzed, and results were obtained with various tests of LTO. Electrochemical measurements revealed that Li3.9Ca0.1Ti5O12 anodes exhibit better rate capability, better cycling stability, and a higher specific capacity than pure LTO anodes.
ISSN:1687-4110
1687-4129
DOI:10.1155/2018/7074824