Tailoring the electrochemical properties of composite electrodes by introducing surface redox-active oxide film: VOx-impregnated LiFePO4 electrode

Kyu-Sung Park; Anass Benayad; Min-Sik Park; Atsuo Yamada; Seok-Gwang Doo

doi:10.1039/B921837H

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Tailoring the electrochemical properties of composite electrodes by introducing surface redox-active oxide film: VO_x-impregnated LiFePO₄electrode†

Kyu-Sung Park,*^a Anass Benayad,*^b Min-Sik Park,^a Atsuo Yamada^c and Seok-Gwang Doo^a

Author affiliations

* Corresponding authors

^a Battery Group, Samsung Advanced Institute of Technology (SAIT), Yongin 446-712, Korea
E-mail: ks337.park@samsung.com

^b Analytical Engineering Group, SAIT, Yongin 446-712, Korea
E-mail: benayad.anass@samsung.com

^c Department of Engineering, The University of Tokyo, Building 5-607, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Abstract

When the electrode is specifically designed by impregnation with an electronic and ionic mixed-conductor, improvement in the electrochemical properties was observed. The presence of an active redox center may contribute to the enhancement of the surface electronic/ionic transport properties by enhancing electrical connection and isotropic Li⁺ ion transport.

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Supplementary files

Experimental, XRD refinement result, XPS spectra, charge/discharge curves of VO _x PDF (528K)

Article information

DOI: https://doi.org/10.1039/B921837H
Article type: Communication
Submitted: 20 Oct 2009
Accepted: 22 Feb 2010
First published: 12 Mar 2010

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Chem. Commun., 2010,46, 2572-2574

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Tailoring the electrochemical properties of composite electrodes by introducing surface redox-active oxide film: VO_x-impregnated LiFePO₄ electrode

K. Park, A. Benayad, M. Park, A. Yamada and S. Doo, Chem. Commun., 2010, 46, 2572 DOI: 10.1039/B921837H

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