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Issue 4, 2012
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Silicon-based nanocomposite for advanced thin film anodes in lithium-ion batteries

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Abstract

This work describes the preparation and the characterization of Si-based nano-composite anodes. The samples are prepared by a unique combination of two techniques: Laser Assisted Chemical Vapor Pyrolysis and Electrospray Deposition. The former is used to synthesize the active material, while the latter is employed for the deposition of thin electrode layers onto stainless steel supports. The silicon nano-particles characterization indicates a well-defined crystalline structure and a homogeneous, spherical-like morphology. The electrochemical measurements performed using the silicon-based electrode in the lithium cell show a maximum specific capacity of the order of 1200 mA h g−1 and a good rate capability. The initial irreversible capacity associated with this class of materials is strongly reduced by preliminary surface treatment. The morphology changes upon cycling are minimal and no extended fractures are observed for the cycled electrodes, thus finally indicating the validity of our silicon based electrode as an anode for advanced lithium-ion batteries.

Graphical abstract: Silicon-based nanocomposite for advanced thin film anodes in lithium-ion batteries

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Article information


Submitted
26 Jul 2011
Accepted
28 Oct 2011
First published
28 Nov 2011

J. Mater. Chem., 2012,22, 1556-1561
Article type
Paper

Silicon-based nanocomposite for advanced thin film anodes in lithium-ion batteries

D. Munaò, M. Valvo, J. van Erven, E. M. Kelder, J. Hassoun and S. Panero, J. Mater. Chem., 2012, 22, 1556 DOI: 10.1039/C1JM13565A

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