期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 9, 期 5, 页码 941-946出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2006.11.028
关键词
nano-silicon; polypyrrole; anode; lithium-ion battery
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 Sianodes. The electrochemical performance of the Si/PPy electrodes was 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. (c) 2006 Elsevier B.V. All rights reserved.
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