Li2MnSiO4/Carbon Composite Nanofibers as a High-Capacity Cathode Material for Li-Ion Batteries


Li2MnSiO4 has an extremely high theoretical capacity of 332 mAh?g?1. However, only around half of this capacity has been realized in practice and the capacity retention during cycling is also low. In this study, Li2MnSiO4/carbon composite nanofibers were prepared by a combination of electrospinning and heat treatment. The one-dimensional continuous carbon nanofiber matrix serves as long-distance conductive pathways for both electrons and ions. The composite nanofiber structure avoids the aggregation of Li2MnSiO4 particles, which in turn enhances the electrode conductivity and promotes the reaction kinetics. The resultant Li2MnSiO4/carbon composite nanofibers were used as the cathode material for Li-ion batteries, and they delivered high charge and discharge capacities of 218 and 185 mAh?g?1, respectively, at the second cycle. In addition, the capacity retention of Li2MnSiO4 at the first 20th cycles increased from 37% to 54% in composite nanofibers.

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S. Zhang, Y. Li, G. Xu, S. Li, Y. Lu, O. Topracki and X. Zhang, "Li2MnSiO4/Carbon Composite Nanofibers as a High-Capacity Cathode Material for Li-Ion Batteries," Soft Nanoscience Letters, Vol. 2 No. 3, 2012, pp. 54-57. doi: 10.4236/snl.2012.23010.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] M. M. Thackeray, W. I. F. David, P. G. Bruce and J. B. Goodenough, “Lithium Insertion into Manganese Spinels,” Materials Research Bulletin, Vol. 18, No. 4, 1983, pp. 461-472. doi:10.1016/0025-5408(83)90138-1
[2] S. Yang, Y. Song, P. Y. Zavalij and M. S. Whittingham, “Reactivity, Stability and Electrochemical Behavior of Lithium Iron Phosphates,” Electrochemistry Communica tions, Vol. 4, No. 3, 2002, pp. 239-244.
[3] O. Toprakci, L. Ji, Z. Lin, H. A. K. Toprakci and X. Zhang, “Fabrication and Electrochemical Characteristics of Electrospun LiFePO4/Carbon Composite Fibers for Lithium-Ion Batteries,” Journal of Power Sources, Vol. 196, No. 18, 2011, pp. 7692-7699. doi:10.1016/j.jpowsour.2011.04.031
[4] A. Nyten, A. Abouimrane, M. Armand, T. Gustafsson and J. O. Thomas, “Elelctrochemical Performance of Li2FeSiO4 as a New Cathode Material,” Materials Chemistry, Vol. 7, 2005, pp. 156-160.
[5] A. Nyten, S. Kamali, L. Hanggstrom, T. Gustafsson and J. O. Thomas, “The Lithium Extraction/Insertion Mechanism in Li2FeSiO4,” Materials Chemistry, Vol. 16, 2006, pp. 2266-2272. doi:10.1039/b601184e
[6] R. Dominko; M. Bele, A. Kokalj, M. Gaberscek and J. Jamnik, “Li2MnSiO4 as a Potential Li-Battery Cathode Material,” Journal of Power Sources, Vol. 174, No. 2, 2007, pp. 457-461. doi:10.1016/j.jpowsour.2007.06.188
[7] R. Dominko, M. Bele, M. Gaberscek, A. Meden, M. Remskar and J. Jamnik, “Structure and Electrochemical Performance of Li2MnSiO4 and Li2FeSiO4 as Potential Li-Battery Cathode Materials,” Electrochemistry Communications, Vol. 8, No. 2, 2006, pp. 217-222. doi:10.1016/j.elecom.2005.11.010
[8] Z. Lin, L. Ji, M. Woodroof and X. Zhang, “Electrodeposited MnOx/Carbon Nanofiber Composites for Use as Anode Materials in Rechargeable Lithium-Ion Batteries,” Journal of Power Sources, Vol. 195, No. 15, 2010, pp. 5025-5031. doi:10.1016/j.jpowsour.2010.02.004
[9] L. Ji, Z. Lin, A. J. Medford and X. Zhang, “In-Situ En capsulation of Nickel Particles in Electrospun Carbon Nanofibers and Their Electrochemical Performance,” Chem istry—A European Journal, Vol. 15, No. 41, 2009, pp. 10718-10722. doi:10.1002/chem.200902012

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