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Development of high energy capacities of nanoscaled Sn–Cu alloy thin film electrode materials for Li-ion batteries

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Ramasamy, Gnanamuthu , Mohan, S. and Lee, Chang Woo (2012) Development of high energy capacities of nanoscaled Sn–Cu alloy thin film electrode materials for Li-ion batteries. Materials Letters, Volume 84 . pp. 101-103. doi:10.1016/j.matlet.2012.06.049

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Official URL: http://dx.doi.org/10.1016/j.matlet.2012.06.049

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Abstract

A nanoscaled Sn–Cu alloy film material is intended to improve charge–discharge capacities with respect to the negative electrode in Li-ion batteries. Sn–Cu alloy film electrodes are prepared using sulfate electrolyte by a pulse current plating method. Pulse duty cycles of 10% at a frequency of 10 Hz with a peak current density 1 A dm−2 are employed. The electrochemical discharge–charge capacities of the lithium insertion process and the reversible charging process are 1058 mA h g−1 and 612 mA h g−1 in the initial cycling, respectively. Also, Coulombic efficiency was 87.2% at the end of the 30th cycle. Thus, nanoscaled Sn–Cu alloy film electrodes are good candidates for anode material in Li-ion rechargeable batteries.

Item Type: Journal Article
Divisions: Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title: Materials Letters
Publisher: Elsevier BV
ISSN: 0167-577X
Official Date: 1 October 2012
Dates:
DateEvent
1 October 2012Published
23 June 2012Available
12 June 2012Accepted
20 February 2012Submitted
Volume: Volume 84
Page Range: pp. 101-103
DOI: 10.1016/j.matlet.2012.06.049
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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