Long-term cycling performance of nitrogen-doped hollow carbon nanospheres as anode materials for sodium-ion batteries

Wen, Yanfen, Wang, Bei, Luo, Bin and Wang, Lianzhou (2016) Long-term cycling performance of nitrogen-doped hollow carbon nanospheres as anode materials for sodium-ion batteries. European Journal of Inorganic Chemistry, 2016 13-14: 2051-2055. doi:10.1002/ejic.201501172


Author Wen, Yanfen
Wang, Bei
Luo, Bin
Wang, Lianzhou
Title Long-term cycling performance of nitrogen-doped hollow carbon nanospheres as anode materials for sodium-ion batteries
Journal name European Journal of Inorganic Chemistry   Check publisher's open access policy
ISSN 1099-0682
1434-1948
Publication date 2016-05-01
Sub-type Article (original research)
DOI 10.1002/ejic.201501172
Volume 2016
Issue 13-14
Start page 2051
End page 2055
Total pages 5
Place of publication Weinheim, Germany
Publisher Wiley-VCH Verlag
Collection year 2017
Language eng
Formatted abstract
Nitrogen-doped hollow carbon nanospheres (N-HCSs) were prepared by a facile template method with dopamine as the precursor and subsequently used as the anode material for sodium-ion batteries. The N-HCSs demonstrated high reversible capacities with a retained capacity of 162.2 mA h g–1 over 100 cycles at 0.1 A g–1 and an excellent rate capability with an attainable capacity of 90 mA h g–1 at a high current density of 5 A g–1. Detailed characterization revealed that nitrogen doping introduces defects into the carbon wall structure and enables the storage of additional Na ions in the walls of the carbon spheres. We then show that the addition of an electrolyte additive [fluorinated ethylene carbonate (FEC)] also effectively enhances the cyclability of the N-HCSs anode; a capacity of 136.4 mA h g–1 was obtained after 2500 charge–discharge cycles at a current rate of 0.2 A g–1.
Keyword Anode materials
Batteries
Carbon
Electrochemistry
Nanoparticles
Sodium
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
HERDC Pre-Audit
Australian Institute for Bioengineering and Nanotechnology Publications
 
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