Novel Nano-silicon / Polypyrrole Composites for Lithium Storage



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.


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.

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