Carbon coated Na7Fe7(PO4)6F3: A novel intercalation cathode for sodium-ion batteries

Ramireddy, Thrinathreddy, Rahman, Md Mokhlesur, Sharma, Neeraj, Glushenkov, Alexey M. and Chen, Ying 2014, Carbon coated Na7Fe7(PO4)6F3: A novel intercalation cathode for sodium-ion batteries, Journal of power sources, vol. 271, pp. 497-503, doi: 10.1016/j.jpowsour.2014.08.039.

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Title Carbon coated Na7Fe7(PO4)6F3: A novel intercalation cathode for sodium-ion batteries
Formatted title Carbon coated Na7Fe7(PO4)6F3: A novel intercalation cathode for sodium-ion batteries
Author(s) Ramireddy, Thrinathreddy
Rahman, Md MokhlesurORCID iD for Rahman, Md Mokhlesur
Sharma, Neeraj
Glushenkov, Alexey M.
Chen, YingORCID iD for Chen, Ying
Journal name Journal of power sources
Volume number 271
Start page 497
End page 503
Total pages 7
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014-12-20
ISSN 0378-7753
Keyword(s) Science & Technology
Physical Sciences
Energy & Fuels
Na7Fe7(PO4)(6)F-3/C composite cathode
Amorphous carbon
Hydrothermal synthesis
Solid state reaction
Sodium-ion battery
Summary Electrode materials are being developed to realise sodium-ion batteries that can provide energy storage solutions. Here, we develop amorphous carbon coated Na7Fe7(PO4)6F3, prepared by combining hydrothermal and solid state reaction methods, as an insertion electrode for sodium-ion batteries applications. Na7Fe7(PO4)6F3 particles are surrounded by a thin layer (∼1.5–2 nm) of amorphous carbon. The Na7Fe7(PO4)6F3/C composite cathode undergoes reversible sodium intercalation/de-intercalation with an average operational potential of ∼3.0 V (vs Na+/Na). This cathode has a capacity of 65 mA h g−1 at 100 mA g−1 current after 60 cycles and features twice higher capacity than that of an uncoated Na7Fe7(PO4)6F3 sample. Therefore, the carbon-coated Na7Fe7(PO4)6F3 composite presents feasible sodium intercalation/de-intercalation capacity, offering possibilities for developing a low cost, high performance sodium-ion battery positive electrode.
Language eng
DOI 10.1016/j.jpowsour.2014.08.039
Indigenous content off
Field of Research 100708 Nanomaterials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID DP130102311
Copyright notice ©2014, Elsevier
Persistent URL

Document type: Journal Article
Collections: Institute for Frontier Materials
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