Lithiated MoO3 Nanobelts with Greatly Improved Performance for Lithium Batteries

Authors

  • L. Q. Mai,

    1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 (P.R. China)
    2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (USA)
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  • B. Hu,

    1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 (P.R. China)
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  • W. Chen,

    1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 (P.R. China)
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  • Y. Y. Qi,

    1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 (P.R. China)
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  • C. S. Lao,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (USA)
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  • R. S. Yang,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (USA)
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  • Y. Dai,

    1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 (P.R. China)
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  • Z. L. Wang

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (USA)
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  • This work was supported by the National Nature Science Foundation of China (50702039, 50672071, 50672072), the Key Project of Chinese Ministry of Education (104207, 105124), the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, No. IRT0547), the Ministry of Education, China, the Foundation for Innovation Research Team (2005ABC004), and the Natural Science Foundation (2006ABA310) of Hubei Province, the Wuhan Youth Chenguang Project (20065004116-17). This project is partly supported by National Center for Nanoscience and Technology, China. C.S.L. and Z.L.W. are thankful for support from the US NSF, DARPA, and NIH (CCNE). Supporting Information is available online from Wiley InterScience or from the author

Abstract

original image

α-MoO3nanobelts are successfully lithiated by a secondary reaction. The capacity retention rate of lithiated MoO3 nanobelts is 92 % after 15 cycles, whereas the non-lithiated nanobelts retain only 60 % (see figure). The conductivity is increased by close to two orders of magnitudes after lithiation suggesting that Li+ ions have been introduced into the MoO3 layers during lithiation.

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