Nanoporous Ag-CNTs foamed electrode for lithium intercalation

Document Type : Research Paper

Authors

1 Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box. 87317–51167, Iran

2 Physics department of Islamic Azad university (branch of Qom) / Iran

10.7508/jns.2011.03.006

Abstract

Intercalation of lithium into Ag-CNTs sample is reported here. We have used a nano-porous silver foam as a frame for deposition of the CNTs   inside   the   pores   by   electrophoresis   deposition   (EPD) technique. By using  chronopotentiometry method,  we  have noticed that the Li storage capacity of the prepared Ag-CNTs electrode was improved  noticeably  in  comparison  with  literature.  In  addition,  a very  good functional stability  for  the  prepared  electrode  has  been tested   during   subsequent   cycles   of   charge / discharge   (C&D) procedures. By scanning the cycle's regulated current from 0.2 up to 1.0 mA , it was shown that in the range of 0.4–0.6 mA reversibility of the C&D capacity became optimum and the voltage profiles were converged, as well.

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References

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