Volume 43 Issue 2
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JOURNAL OF MECHANICAL ENGINEERING  > 2017  >  43(2): 278-284.
YU Zhihui, LIU Dandan, KOU Yanna. Preparation and Pproperties of Si/Si-Fe Alloy Porous Composite as Anode Material in Lithium-ion Battery[J]. JOURNAL OF MECHANICAL ENGINEERING, 2017, 43(2): 278-284. doi: 10.11936/bjutxb2016010005
Citation: YU Zhihui, LIU Dandan, KOU Yanna. Preparation and Pproperties of Si/Si-Fe Alloy Porous Composite as Anode Material in Lithium-ion Battery[J]. JOURNAL OF MECHANICAL ENGINEERING, 2017, 43(2): 278-284. doi: 10.11936/bjutxb2016010005
shu

Preparation and Pproperties of Si/Si-Fe Alloy Porous Composite as Anode Material in Lithium-ion Battery

doi: 10.11936/bjutxb2016010005

  • Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

  • Received Date: 05 Jan 2016
    Available Online: 13 Sep 2022
  • Issue Publish Date: 01 Feb 2017
    Abstract
  • In order to modify the electrochemical properties of Si anode for lithium ion batteries, a series of porous Si/Si-Fe alloy composites with different amounts of Fe doping were prepared by magnesium reduction process. The morphology and microstructure of the as-prepared composites were investigated. The electrochemical performance of the composites as anode materials for lithium-ion batteries were evaluated by galvanostatical charge-discharge testing.The composites show a porous structure with the uniform distribution of Si-Fe alloy inside the pores and possess remarkable cycle stability with a capacity of 1133.5mA·h/g at 0.1C after 100 cycles, a capacity retention ratio of 66% and a reversible capacity of 776.9mA·h/g at 1C.

     

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