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.

Keywords


[1] K. Zaghib, X. Song, A. Guerfi, R.  Rioux, K. Kinoshita; Journal of Power Sources 119 –121 (2003) 8

[2] W. Gouping, Z. Qingtang, Y. Zuolong, Q. Meizheng; Solid State Ionics 179 (2008) 263–268 [3] T. Takamura, K. Sumiya, J. Suzuki,  Ch.Yamada, K. Sekine; Journal of Power Sources 368 (1999) 81

[4] J. Shirakawa, M. Nakayama, H. Ikuta, Y. Uchimoto; A. Wakihara; Electrochemical and Solid-State Letters 7 (2004) A27.

[5] G.X. Wang, L. Yang, Y. Chen, J.Z. Wang, S. Bewlay, H.K. Liu, ElectrochimicaActa 43  (2005) 4649

[6] P.B. Balbuena, Y. Wang; "Lithium-Ion Batteries" Chapter 1, Imperial College Press (2004)

[7] H. Liu, Sh. Bo, W. Cui, F. Li, C. Wang, Y. Xia; ElectrochimicaActa 53 (2008)  6497

[8] Y. Wang and I. Zhitomirsky; Langmuir 2009, 25(17), 9684

[9] X. Wu, H. Li, L. Chen, X.Huang; Solid State Ionics 149 (2002) 185

[10] Jm. Moon, K. H. An, Y. H. Lee, Y. S.  Park, D. J. Bae, Gs. Park; J. PhysChem B 105(2001)5677

[11] B. Khoshnevisan, M. Behpour, D.  Kaveh; Physica B 404(2009) 1733

[12] O. Mao, R.A. Dunlap, I.A. Courtney,  J. R. Dahn; J. ElectrochemSoc 145 (1998)  4195

[13] Zh. Yang and H. Wu; Materials Chemistry and Physics 71 (2001) 7–11

[14] J. Yan, H. Song, Sh. Yang, J. Yan, X.  Chen; ElectrochimicaActa 53 (2008) 6351