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Issue 58, 2015
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Rechargeable Co3O4 porous nanoflake carbon nanotube nanocomposite lithium-ion battery anodes with enhanced energy performances

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Abstract

Multi-walled carbon nanotubes intertwined with porous Co3O4 nanoflakes (Co3O4/MWNT) have been hydrothermally synthesized to form a three dimensional network with superior electrical and ionic conductivity and tested as an anode material for lithium-ion batteries (LIBs). The electrochemical measurements on the Co3O4/MWNT composites demonstrated a reversible capacity of 708 mA h g−1 after 100 cycles at a current density of 100 mA g−1 and discharge capacities of 773, 805, 698, and 491 mA h g−1 at current densities of 100, 200, 400, and 800 mA g−1, respectively. The superior cycling and rate performances were attributed to the formed network structure, in which the entanglement and flexibility of MWNTs buffered the volume change of Co3O4 during the charge–discharge process and improved the electrical conductivity of the electrode.

Graphical abstract: Rechargeable Co3O4 porous nanoflake carbon nanotube nanocomposite lithium-ion battery anodes with enhanced energy performances

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Publication details

The article was received on 13 Apr 2015, accepted on 19 May 2015 and first published on 19 May 2015


Article type: Paper
DOI: 10.1039/C5RA06642E
Citation: RSC Adv., 2015,5, 46509-46516
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    Rechargeable Co3O4 porous nanoflake carbon nanotube nanocomposite lithium-ion battery anodes with enhanced energy performances

    S. Qiu, H. Gu, G. Lu, J. Liu, X. Li, Y. Fu, X. Yan, C. Hu and Z. Guo, RSC Adv., 2015, 5, 46509
    DOI: 10.1039/C5RA06642E

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