Journal
ELECTROCHIMICA ACTA
Volume 51, Issue 22, Pages 4634-4638Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2005.12.046
Keywords
sulphur-polypyrrole composite; lithium rechargeable battery; polypyrrole additive
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A novel conducting sulphur-polypyrrole composite material was prepared by the chemical polymerization method with sodium p-toluenesulphonate as the dopant, 4-styrenesulphonic sodium salts as the surfactant, and FeCl3 as the oxidant. The new material was characterized by Raman spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Nanosize polypyrrole particles were uniformly coated onto the surface of the sulphur powder, which significantly improved the electrical conductivity, the capacity and the cycle durability in a lithium cell compared with the bare sulphur electrode. (c) 2006 Elsevier Ltd. All rights reserved.
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