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Issue 24, 2013
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Facile synthesis of N-doped carbon-coated Li4Ti5O12 microspheres using polydopamine as a carbon source for high rate lithium ion batteries

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Abstract

Nitrogen-doped (N-doped) carbon-coated Li4Ti5O12 microspheres are synthesized by a solution method combined with heat treatment, in which polydopamine-coated TiO2 is first prepared and subsequently transformed in situ into N-doped carbon-coated Li4Ti5O12 microspheres. Importantly, neither templates nor rigorous reaction conditions are needed in this process that makes it simple, effective and general. The thickness of the resulting N-doped carbon coating layer can be tailored by controlling the coating time of dopamine. The optimum designed N-doped carbon-coated Li4Ti5O12 microspheres with a continuous and high electronically conducting network demonstrated superior rate performance (123 mA h gāˆ’1 at 30 C) and excellent capacity retention (136.5 mA h gāˆ’1 after 200 cycles at 10 C) when used as anode material, indicating their promising application in high-rate lithium ion batteries.

Graphical abstract: Facile synthesis of N-doped carbon-coated Li4Ti5O12 microspheres using polydopamine as a carbon source for high rate lithium ion batteries

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Publication details

The article was received on 08 Feb 2013, accepted on 03 Apr 2013 and first published on 04 Apr 2013


Article type: Paper
DOI: 10.1039/C3TA10623C
Citation: J. Mater. Chem. A, 2013,1, 7270-7276
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    Facile synthesis of N-doped carbon-coated Li4Ti5O12 microspheres using polydopamine as a carbon source for high rate lithium ion batteries

    H. Li, L. Shen, K. Yin, J. Ji, J. Wang, X. Wang and X. Zhang, J. Mater. Chem. A, 2013, 1, 7270
    DOI: 10.1039/C3TA10623C

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