Facile synthesis and lithium storage performance of (NH4)2V3O8 nanoflakes

Single-crystalline (NH 4 ) 2 V 3 O 8 nanoflakes were successfully synthesized by a facile hydrothermal method. We investigated their electrochemical performance for use in lithium ion batteries for the first time. Interestingly, the as-prepared (NH 4 ) 2 V 3 O 8 electrode demonstrated good lithium s...

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Bibliographic Details
Published in:Journal of applied electrochemistry 2016-08, Vol.46 (8), p.879-885
Main Authors: Xu, Guoqing, He, Hanna, Wan, Hao, Liu, Ruihong, Zeng, Xianguang, Sun, Dan, Huang, Xiaobing, Wang, Haiyan
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Electrochemistry
Industrial Chemistry/Chemical Engineering
Physical Chemistry
Research Article
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Summary:Single-crystalline (NH 4 ) 2 V 3 O 8 nanoflakes were successfully synthesized by a facile hydrothermal method. We investigated their electrochemical performance for use in lithium ion batteries for the first time. Interestingly, the as-prepared (NH 4 ) 2 V 3 O 8 electrode demonstrated good lithium storage properties. This material exhibited a high initial discharge capacity of 261.4 mAh g −1 at a current density of 150 mA g −1 . Apart from the capacity loss in the first two cycles, the discharge capacity remained relatively stable and a capacity of 215.8 mAh g −1 was maintained after 30 cycles, indicating good cycling stability. The Coulombic efficiency was close to 100 % during the cycling, revealing that the intercalation/deintercalation of Li ions in this material was highly reversible. The good electrochemical performance of (NH 4 ) 2 V 3 O 8 was mainly attributed to its flake-like morphology and intrinsically stable layered structure. Graphical Abstract
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-016-0973-x