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Preparation of Li9Cr3(P2O7)3(PO4)2 as cathode material for lithium ion batteries through sol–gel method

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Abstract

The compound Li9Cr3(P2O7)3(PO4)2 has been successfully synthesized using sol–gel method. X-ray diffraction Rietveld refinement analysis indicates that single phase Li9Cr3(P2O7)3(PO4)2 can be obtained under air condition and high purity nitrogen atmosphere. Scanning electron microscopy indicates that nanowires with lengths ranging from several to tens micrometers and diameters varying from 100nm to 500nm can be obtained in the Li9Cr3(P2O7)3(PO4)2 compound heated under air condition. The electrochemical properties of Li9Cr3(P2O7)3(PO4)2 sintered under N2 as cathode material is reported for the first time. The XRD patterns of the electrodes before and after 30 cycles indicate that the Li9Cr3(P2O7)3(PO4)2 keeps its original monodiphosphate structure.

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Acknowledgments

Financial support from an NSFC Grant (No. 50972046) funded by the NSFC Committee of China and the Fundamental Research Funds for the Central University SCUT (No. 2009ZM0022) is gratefully appreciated.

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Authors and Affiliations

  1. School of Material Science and Engineering, South China University of Technology, Guangzhou, 510640, China

    Jiantie Xu, Yanming Zhao & Quan Kuang

  2. School of Physics, South China University of Technology, Guangzhou, 510640, China

    Yanming Zhao

Authors
  1. Jiantie Xu
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  2. Yanming Zhao
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  3. Quan Kuang
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Correspondence to Yanming Zhao.

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Xu, J., Zhao, Y. & Kuang, Q. Preparation of Li9Cr3(P2O7)3(PO4)2 as cathode material for lithium ion batteries through sol–gel method. J Sol-Gel Sci Technol 59, 521–524 (2011). https://doi.org/10.1007/s10971-011-2521-9

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  • DOI: https://doi.org/10.1007/s10971-011-2521-9

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