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Stable anode performance of an Sb–carbon nanocomposite in lithium-ion batteries and the effect of ball milling mode in the course of its preparation

Ramireddy, Thrinathreddy, Rahman, Md Mokhlesur, Xing, Tan, Chen, Ying and Glushenkov, Alexey M 2014, Stable anode performance of an Sb–carbon nanocomposite in lithium-ion batteries and the effect of ball milling mode in the course of its preparation, Journal of Materials Chemistry A, vol. 2, no. 12, pp. 4282-4291.

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Title Stable anode performance of an Sb–carbon nanocomposite in lithium-ion batteries and the effect of ball milling mode in the course of its preparation
Author(s) Ramireddy, Thrinathreddy
Rahman, Md Mokhlesur
Xing, Tan
Chen, Ying
Glushenkov, Alexey M
Journal name Journal of Materials Chemistry A
Volume number 2
Issue number 12
Start page 4282
End page 4291
Total pages 10
Publisher Royal Society of Chemistry
Place of publication London, England
Publication date 2014
ISSN 2050-7488
Keyword(s) Sb–carbon nanocomposite
Lithium-ion batteries
Stable anode performance
Summary Materials that alloy with lithium (Si, Ge, Sn, Sb, and P) are considered as alternatives to graphitic anodes in lithium-ion batteries. Their practical use is precluded by large volume changes (200–370%) during cycling. Embedding nanoparticles into carbon is being investigated as a way to tackle that, and ball milling is emerging as a technique to prepare nanocomposites with enhanced capacity and cyclic stability. Using Sb as a model system, we investigate the preparation of Sb–carbon nanocomposites using a reconfigurable ball mill. Four distinctive milling modes are compared. The structure of the composites varies depending on the mode. Frequent strong ball impacts are required for the optimal electrochemical performance of the nanocomposite. An outstanding stable capacity of 550 mA h g−1 for 250 cycles at a current rate of 230 mA g−1 is demonstrated in a thin electrode (1 mg cm−2) and a capacity of [similar]400 mA h g−1 can be retained at 1.15 A g−1. Some capacity fade is observed in a thicker electrode (2.5 mg cm−2), i.e. the performance is sensitive to mass loading. The electrochemical stability originates from the nanocomposite structure containing Sb nanoparticles (5–15 nm) dispersed in a carbon component.
Language eng
Field of Research 100708 Nanomaterials
100712 Nanoscale Characterisation
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2014, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30062465

Document type: Journal Article
Collections: Institute for Frontier Materials
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Created: Thu, 10 Apr 2014, 14:36:57 EST by Alexey Glushenkov

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.