VOPO sub(4) nanosheets as anode materials for lithium-ion batteries

VOPO sub(4) nanosheets are successfully synthesized using a hydrothermal method followed by calcination. The XRD results reveal that obtained products are crystallized in the orthorhombic VOPO sub(4) phase. SEM and TEM images demonstrate that VOPO sub(4) products possess unique nanosheet morphology....

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2014-08, Vol.50 (76), p.11132-11134
Main Authors: Zhang, Bao, Han, Ya-dong, Zheng, Jun-chao, Zhang, Jia-feng, Shen, Chao, Ming, Lei, Yuan, Xin-bo, Li, Hui
Format: Article
Language:English
Subjects:
Anodes
Calcination
Crystallization
Discharge
Electrochemical analysis
Lithium-ion batteries
Nanostructure
Transmission electron microscopy
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Summary:VOPO sub(4) nanosheets are successfully synthesized using a hydrothermal method followed by calcination. The XRD results reveal that obtained products are crystallized in the orthorhombic VOPO sub(4) phase. SEM and TEM images demonstrate that VOPO sub(4) products possess unique nanosheet morphology. Electrochemical tests show that the VOPO sub(4) nanosheets exhibit an excellent electrochemical performance as anode materials. They can deliver an initial discharge capacity of 1356 mA h g super(-1) at 0.1 C, and possess a favorable capacity at rates of 0.2, 1, and 2 C. The synthesized VOPO sub(4) can be used as a good anode material; furthermore, the nanosheet structure can effectively improve the electrochemical performance of this material.
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc03781b