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Issue 25, 2015
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A spray drying approach for the synthesis of a Na2C6H2O4/CNT nanocomposite anode for sodium-ion batteries

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Abstract

Sodium-ion batteries have attracted extensive attention for large-scale energy storage applications for renewable energy and smart grids owing to their abundant sodium resources and potential low cost. Compared with the numerous available cathodes, very few anodes are viable for sodium-ion batteries. Here we report a highly safe and low-cost nanocomposite, disodium 2,5-dihydroxy-1,4-benzoquinone (Na2C6H2O4)/CNT, prepared by a simple spray drying method, as a high performance anode for sodium-ion batteries. The resulting nanocomposite exhibits a reversible capacity of 259 mA h gāˆ’1 with a first Coulombic efficiency of 88% and excellent rate performance. The average sodium storage voltage is 1.4 V, which prevents the formation of a solid electrolyte interphase layer and consequently ensures high safety, high first Coulombic efficiency and superior rate performance.

Graphical abstract: A spray drying approach for the synthesis of a Na2C6H2O4/CNT nanocomposite anode for sodium-ion batteries

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Article information


Submitted
30 Apr 2015
Accepted
20 May 2015
First published
25 May 2015

J. Mater. Chem. A, 2015,3, 13193-13197
Article type
Communication
Author version available

A spray drying approach for the synthesis of a Na2C6H2O4/CNT nanocomposite anode for sodium-ion batteries

X. Wu, J. Ma, Q. Ma, S. Xu, Y. Hu, Y. Sun, H. Li, L. Chen and X. Huang, J. Mater. Chem. A, 2015, 3, 13193
DOI: 10.1039/C5TA03192C

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