Nanoporous Ag-CNTs foamed electrode for lithium intercalation
نویسندگان
1 Physics department of Islamic Azad university (branch of Qom) / Iran
2 Institute of Nano Science and Nano Technology, University of Kashan, Kashan, P. O. Box. 87317–51167, Iran
doi
10.7508/jns.2011.03.006چکیده
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.
