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Li2MnSiO4@C nanocomposite as a high-capacity cathode material for Li-ion batteries

Journal Article


Abstract


  • In this paper, we report on the preparation of a Li2MnSiO 4@C nanocomposite and its application as a high-capacity cathode material for rechargeable Li-ion batteries. Li2MnSiO4@C was synthesized via a hydrothermal-assisted solution route by using ascorbic acid as a carbon source and reductant. Based on the characterization by XRD, SEM, TEM, BET, elemental analysis and Raman analysis, it was found that the as-obtained homogenous Li2MnSiO4@C nanocomposite was composed of a Li2MnSiO4 core in a high-purity phase and a graphitized carbon shell. The electrochemical measurement results showed that Li2MnSiO4@C with an average particle size of 22.8 nm exhibited enhanced electrochemical properties, with initial discharge capacities of 281.5 mA h g-1 at 25 °C and 321.4 mA h g-1 at 45 °C, suggesting two lithium ions per formula unit. © 2013 The Royal Society of Chemistry.

UOW Authors


  •   Hu, Zhe (external author)

Publication Date


  • 2013

Citation


  • Hu, Z., Zhang, K., Gao, H., Duan, W., Cheng, F., Liang, J., & Chen, J. (2013). Li2MnSiO4@C nanocomposite as a high-capacity cathode material for Li-ion batteries. Journal of Materials Chemistry A, 1(40), 12650-12656. doi:10.1039/c3ta12106b

Scopus Eid


  • 2-s2.0-84884650538

Start Page


  • 12650

End Page


  • 12656

Volume


  • 1

Issue


  • 40

Abstract


  • In this paper, we report on the preparation of a Li2MnSiO 4@C nanocomposite and its application as a high-capacity cathode material for rechargeable Li-ion batteries. Li2MnSiO4@C was synthesized via a hydrothermal-assisted solution route by using ascorbic acid as a carbon source and reductant. Based on the characterization by XRD, SEM, TEM, BET, elemental analysis and Raman analysis, it was found that the as-obtained homogenous Li2MnSiO4@C nanocomposite was composed of a Li2MnSiO4 core in a high-purity phase and a graphitized carbon shell. The electrochemical measurement results showed that Li2MnSiO4@C with an average particle size of 22.8 nm exhibited enhanced electrochemical properties, with initial discharge capacities of 281.5 mA h g-1 at 25 °C and 321.4 mA h g-1 at 45 °C, suggesting two lithium ions per formula unit. © 2013 The Royal Society of Chemistry.

UOW Authors


  •   Hu, Zhe (external author)

Publication Date


  • 2013

Citation


  • Hu, Z., Zhang, K., Gao, H., Duan, W., Cheng, F., Liang, J., & Chen, J. (2013). Li2MnSiO4@C nanocomposite as a high-capacity cathode material for Li-ion batteries. Journal of Materials Chemistry A, 1(40), 12650-12656. doi:10.1039/c3ta12106b

Scopus Eid


  • 2-s2.0-84884650538

Start Page


  • 12650

End Page


  • 12656

Volume


  • 1

Issue


  • 40