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Ionic conductivity and interfacial resistance of electrospun poly(acrylonitrile)/poly(methyl methacrylate) fibrous membrane-based polymer electrolytes for lithium ion batteries

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Abstract

Electrospun poly(acrylonitrile) fibrous membrane (PAN-EFM) is prepared and enhanced by adding poly(methyl methacrylate)(PMMA) and subsequently minimizing the average diameter of the PAN/PMMA blend fibers. Electrospinning of the 50/50 wt% PAN/PMMA solution is carried out with the aim of the simultaneous presence of both polymers on the fiber surface. Their presence in exterior surface is confirmed using the Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) technique next to the leaching of PMMA with acetone. The process parameters are optimized in four stable modes with the average diameter decreasing from 445 to 150 nm. Mechanical strength of the membrane is measured and reported. Comparing the sample electrochemical properties of the EFMs reveals that the addition of PMMA increases ionic conductivity from 1.02 to 3.31 mS cm−1 and reduces interfacial resistance from ~1000 to ~400 Ω. It is also demonstrated that the ~300-nm reduction in average diameter of the blend fibers increases ionic conductivity from 3.31 to 5.81 mS cm−1 and reduces interfacial resistance from ~400 to ~200 Ω.

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Acknowledgments

Authors appreciate Mr Mosavi’s help in electrospinning process. No funding had been used in this research.

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The authors have no conflict of interest.

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Authors and Affiliations

  1. Nano and Smart Polymers Center of Excellence, Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, 424 Hafez Ave, Tehran, Iran

    Fatemeh Roghanizad & Mehdi Rafizadeh

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  1. Fatemeh Roghanizad
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  2. Mehdi Rafizadeh
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Correspondence to Mehdi Rafizadeh.

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Roghanizad, F., Rafizadeh, M. Ionic conductivity and interfacial resistance of electrospun poly(acrylonitrile)/poly(methyl methacrylate) fibrous membrane-based polymer electrolytes for lithium ion batteries. Ionics 21, 2789–2795 (2015). https://doi.org/10.1007/s11581-015-1488-x

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  • DOI: https://doi.org/10.1007/s11581-015-1488-x

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