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Issue 8, 2015
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Scribable multi-walled carbon nanotube-silicon nanocomposites: a viable lithium-ion battery system

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Abstract

A novel electrode fabrication technique involving a manual scribing action of vertically aligned silicon coated multiwall carbon nanotubes (VASCNTs) on a copper foil have been developed as a viable approach to Li-ion battery electrodes. The scribed electrodes were prepared without the use of any conductive additives and binders, and they were directly assembled in a coin cell. These ‘binder-less’ scribed Si-CNT electrodes exhibited a very high discharge capacity in excess of 3000 mA h g−1 and a low first cycle irreversible loss (FIR) (19%). In addition, the electrodes also showed good cyclability with capacity retention of 76% at the end of 50 cycles corresponding to a fade rate of 0.48% loss per cycle rendering the technique attractive for suitable Li-ion applications.

Graphical abstract: Scribable multi-walled carbon nanotube-silicon nanocomposites: a viable lithium-ion battery system

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Publication details

The article was received on 28 Jul 2014, accepted on 04 Jan 2015 and first published on 05 Jan 2015


Article type: Paper
DOI: 10.1039/C4NR04288C
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2015,7, 3504-3510
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    Scribable multi-walled carbon nanotube-silicon nanocomposites: a viable lithium-ion battery system

    R. Epur, M. Ramanathan, M. K. Datta, D. H. Hong, P. H. Jampani, B. Gattu and P. N. Kumta, Nanoscale, 2015, 7, 3504
    DOI: 10.1039/C4NR04288C

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