Novel Nano-silicon / Polypyrrole Composites for Lithium Storage

Authors

Jun Chen, University of WollongongFollow
Sau Yen ChewFollow
See How NgFollow
Jiazhao Wang, University of WollongongFollow
Zaiping Guo, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow
Paul G. Munroe, The University of New South Wales
L Zhao

RIS ID

21168

Publication Details

Chew, S., Guo, Z., Wang, J., Chen, J., Munroe, P., Ng, S., Zhao, L. and Liu, H. K. (2007). Novel Nano-silicon / Polypyrrole Composites for Lithium Storage. Electrochemistry Communications, 9 941-946.

Abstract

A novel nano-silicon/polypyrrole composite, suitable for lithium-ion battery anodes, was prepared by chemical polymerization. The cycling stability of Si/PPy electrodes was significantly improved compared to that of the bare Si anodes. The electrochemical performance of the Si/PPy electrodes is comparable to that of Si/DC nanocomposite electrodes. The vast network of the PPy matrix is a suitable environment to increase the electrical conductivity, buffer the volume change during cycling, and prevent cracking and pulverization of the Si electrode.