FeSi6/graphite composite was prepared by mechanical ball milling. The FeSi6 alloy particles consist of an electrochemically active silicon phase and inactive phases FeSi2, distributed uniformly in the graphite matrix. The composite anode offers a large reversible capacity (about 800 mAh g(-1)) and good cycleability. due to the buffering effect of the inactive FeSi2 phase and graphite layers on the volumetric changes of Si phase during lithium-Si alloying reaction. Since FeSi6 alloy is a low-cost industrial material, this alloy compound provides a possible alternative for development of high capacity lithium-ion batteries. (c) 2008 Elsevier B.V. All rights reserved.
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Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R ChinaKunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
Tang, Yanping
Yuan, Sha
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Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R ChinaKunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
Yuan, Sha
Guo, Yuzhong
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Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R ChinaKunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
Guo, Yuzhong
Huang, Ruian
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Kunming Univ Sci & Technol, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R ChinaKunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
Huang, Ruian
Wang, Jianhua
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Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R ChinaKunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
Wang, Jianhua
Yang, Bin
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Kunming Univ Sci & Technol, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R ChinaKunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China
Yang, Bin
Dai, Yongnian
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Kunming Univ Sci & Technol, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R ChinaKunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China