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Nanofiber-Based Membrane Separators for Lithium-ion Batteries

Published online by Cambridge University Press:  01 June 2015

Mataz Alcoutlabi ,
Hun Lee  and
Xiangwu Zhang
Mataz Alcoutlabi*
Affiliation:
Department of Mechanical Engineering, University of Texas-Pan American, Edinburg, TX 78539, USA.
Hun Lee
Affiliation:
Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695-8301, USA
Xiangwu Zhang
Affiliation:
Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695-8301, USA
*
*Corresponding Author: [email protected] : Tel: 956-665-8945
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Abstract

Nanofiber-based membranes were prepared by two different methods for use as separators for Lithium-ion batteries (LIBs). In the first method, Electrospinning was used for the fabrication of Polyvinylidene fluoride PVDF nanofiber coatings on polyolefin microporous membrane separators to improve their electrolyte uptake and electrochemical performance. The nanofiber-coated membrane separators show better electrolyte uptake and ionic conductivity than that for the uncoated membranes. In the second method, Forcespinning® (FS) was used to fabricate fibrous cellulose membranes as separators for LIBs. The cellulose fibrous membranes were made by the Forcespinning® of a cellulose acetate solution precursor followed by a subsequent alkaline hydrolysis treatment. The results show that the fibrous cellulose membrane-based separator exhibits high electrolyte uptake and good electrolyte/electrode wettability and therefore can be a good candidate for high performance and high safety LIB separators.

Keywords

polymerenergy storagenanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1718: Symposium B – Multifunctional Polymeric and Hybrid Materials , 2015 , pp. 157 - 161
Copyright
Copyright © Materials Research Society 2015 

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References

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