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Issue 6, 2010
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Stibnite (Sb2S3) and its amorphous composite as dual electrodes for rechargeable lithium batteries

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Abstract

Orthorhombic Sb2S3 (stibnite) and its amorphous Sb2S3/C composite were synthesized by solid-state routes, such as heat treatment and high energy mechanical milling (HEMM). X-ray diffraction, X-ray photoelectron spectroscopy and high resolution transmission electron microscopy confirmed that the amorphous Sb2S3/C composite was composed of amorphous Sb2S3 phases distributed uniformly within an amorphous carbon matrix. The electrochemical reaction mechanism of amorphous Sb2S3/C with Li was examined by extended X-ray absorption fine structure analyses. The fabricated amorphous Sb2S3/C composite electrode showed excellent electrochemical properties, such as a high energy density (1st charge: 757 mAh g−1), long cyclability (ca. 600 mAh g−1 over 100 cycles), and good initial Coulombic efficiency (ca. 85%). When tested within various voltage windows, the amorphous Sb2S3/C composite electrode was found to be suitable for use as a dual electrodes, such as the anode in Li-ion batteries or the cathode in Li/S batteries.

Graphical abstract: Stibnite (Sb2S3) and its amorphous composite as dual electrodes for rechargeable lithium batteries

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Article information


Submitted
03 Sep 2009
Accepted
13 Nov 2009
First published
15 Dec 2009

J. Mater. Chem., 2010,20, 1097-1102
Article type
Paper

Stibnite (Sb2S3) and its amorphous composite as dual electrodes for rechargeable lithium batteries

C. Park, Y. Hwa, N. Sung and H. Sohn, J. Mater. Chem., 2010, 20, 1097
DOI: 10.1039/B918220A

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