Size and composition effects in Sb-carbon nanocomposites for sodium-ion batteries

Ramireddy, Thrinathreddy, Sharma, Neeraj, Xing, Tan, Chen, Ying, Leforestier, Jeremie and Glushenkov, Alexey M. 2016, Size and composition effects in Sb-carbon nanocomposites for sodium-ion batteries, ACS applied materials and interfaces, vol. 8, no. 44, pp. 30152-30164, doi: 10.1021/acsami.6b09619.

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Title Size and composition effects in Sb-carbon nanocomposites for sodium-ion batteries
Author(s) Ramireddy, Thrinathreddy
Sharma, Neeraj
Xing, Tan
Chen, YingORCID iD for Chen, Ying
Leforestier, Jeremie
Glushenkov, Alexey M.
Journal name ACS applied materials and interfaces
Volume number 8
Issue number 44
Start page 30152
End page 30164
Total pages 13
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2016
ISSN 1944-8244
Keyword(s) anode
ball milling
sodium-ion battery
Science & Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
Summary Sodium-ion batteries are in the spotlight as viable alternatives to lithium-ion batteries in stationary storage and power grid applications. Among possible anode materials, Sb is one of the interesting candidates due to a combination of battery-type potential plateaus in the charge-discharge profiles, high capacity (theoretical capacity of 660 mAh g(-1)), and demonstrated good cyclic stability. The influence of Sb particle size (particularly at the nanoscale range) and the composition of Sb-carbon composites on the electrode performance, stability, and charge storage mechanism is systematically evaluated here for the first time. A range of Sb-carbon nanocomposites with varied Sb particle size (between 50 and ∼1 nm) are studied. The control of the particle size is achieved via varying the carbon and Sb weight ratio in the precursors. The shape of charge-discharge profiles, hysteresis, and the difference in cyclic stabilities and rate performance are analyzed. The nanocomposite with the smallest particle size (∼1 nm) and the largest carbon content provides the most stable cyclic behavior and a better rate capability but suffers from an increased hysteresis between charge and discharge curves. In situ synchrotron X-ray diffraction experiments indicate that the storage mechanism in the Sb-carbon nanocomposites containing Sb nanoparticles is different from the electrodes with bulkier, micron-sized Sb particles, and the electrochemical reaction proceeds through a number of crystalline intermediates.
Language eng
DOI 10.1021/acsami.6b09619
Field of Research 0904 Chemical Engineering
0303 Macromolecular And Materials Chemistry
0306 Physical Chemistry (Incl. Structural)
Socio Economic Objective 0 Not Applicable
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2016, American Chemical Society
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