Sulphur-polypyrrole composite positive electrode materials for rechargeable batteries

Authors

Jiazhao Wang, University of WollongongFollow
Jun Chen, University of WollongongFollow
Konstantin K. Konstantinov, University of WollongongFollow
L Zhao, University of Wollongong
See How Ng, University of WollongongFollow
Guoxiu Wang, University of WollongongFollow
Zaiping Guo, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow

RIS ID

17944

Publication Details

Wang, J., Chen, J., Konstantinov, K. K., Zhao, L., Ng, S., Wang, G., Guo, Z. Liu, H. K. (2006). Sulphur-polypyrrole composite positive electrode materials for rechargeable batteries. Electrochimica Acta, 51 (22), 4634-4638.

Abstract

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.