Novel sodium intercalated (NH4)2V6O16 platelets: High performance cathode materials for lithium-ion battery

[Display omitted] •We report a novel crystalline ammonium sodium vanadium bronze.•Ammonium sodium vanadium bronze shows high capacity and good cycling stability.•Na-ion intercalation results in fewer discharge platforms. A simple and versatile method for preparation of novel sodium intercalated (NH4...

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Bibliographic Details
Published in:Journal of colloid and interface science 2014-02, Vol.415 (415), p.85-88
Main Authors: Fei, Hailong, Wu, Xiaomin, Li, Huan, Wei, Mingdeng
Format: Article
Language:English
Subjects:
Ammonium metavanadate
Applied sciences
Bi-cation
Bronzes
Cathode
Cathodes
Charge transfer
Direct energy conversion and energy accumulation
Discharge
Displays
Electric Power Supplies
Electrical engineering. Electrical power engineering
Electrical power engineering
Electricity
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrodes
Exact sciences and technology
Green Chemistry Technology
Hydrothermal
Intercalation
Lithium-ion batteries
Nitrates - chemistry
Oxalic acid
Oxalic Acid - chemistry
Raman
Sodium
Sodium nitrate
Sodium-ion battery
Vanadates - chemistry
Vanadium
Vanadium bronze
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Summary:[Display omitted] •We report a novel crystalline ammonium sodium vanadium bronze.•Ammonium sodium vanadium bronze shows high capacity and good cycling stability.•Na-ion intercalation results in fewer discharge platforms. A simple and versatile method for preparation of novel sodium intercalated (NH4)2V6O16 is developed via a simple hydrothermal route. It is found that ammonium sodium vanadium bronze displays higher discharge capacity and better rate cyclic stability than ammonium vanadium bronze as lithium-ion battery cathode material because of smaller charge transfer resistance, which would favor superior discharge capacity and rate performance.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2013.10.025