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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 310Electrochemical Performance of Mg-Doped...

Electrochemical Performance of Mg-Doped Li₂FeSiO₄/C as Cathode Material for Lithium-Ion Batteries

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Abstract:

Li2FeSiO4/C and Li1.97Mg0.03FeSiO4/C composites were successfully prepared by a solid-state method. Both samples were systematically investigated by X-ray diffraction(XRD), scanning electron microscopy(SEM), the charge-discharge test and electrochemical impedance spectra measurement, respectively. It was found that the Li1.97Mg0.03FeSiO4/C composite exhibited an excellent rate capability with a discharge capacity of 144mAh g-1 at 0.2C and 97mAh g-1 at 5C, and after 100 cycles at 1 C, 96% of its initial capacity was retained.

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Periodical:

Applied Mechanics and Materials (Volume 310)

Pages:

90-94

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.310.90

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Online since:

February 2013

Authors:

Xiao Bing Huang, Hong Hui Chen, Huang Rong Li, Qian Peng Yang, Shi Biao Zhou, Yuan Dao Chen, Bei Ping Liu, Ji Feng Yang

Keywords:

Li₂FeSiO₄, Lithium-Ion Battery, Mg-Doping, Solid-State Reaction

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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