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Poly(vinylidene fluoride)/poly(acrylonitrile) blend fibrous membranes by centrifugal spinning for high‐performance lithium ion battery separators
Author(s) -
Lv Ruihua,
Zhu Yun,
Liu Hesheng,
Na Bing,
Huang Yanghui,
Xie Xiuli
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44515
Subject(s) - membrane , materials science , acrylonitrile , spinning , electrospinning , electrolyte , chemical engineering , fluoride , polyacrylonitrile , composite material , polymer chemistry , polymer , chemistry , electrode , copolymer , inorganic chemistry , biochemistry , engineering
Fibrous membranes are promising as high‐performance lithium ion battery separators because of high porosity and superior electrolyte uptake. Electrospinning is a popular approach to produce fibrous membranes, but its production rate is very low. As a comparison, mass production of fibrous membranes can be achieved by centrifugal spinning. This study reports fibrous membranes based on poly(vinylidene fluoride)/poly(acrylonitrile) blends by centrifugal spinning and their application as lithium ion battery separators. The blend fibrous membranes have high electrolyte uptake of about 300%, excellent dimensional stability at 180 °C and good mechanical strength over 18 MPa. The coin cells with the blend fibrous membranes as separators show high discharge capacity of 147.7 mAh/g at 0.2 C and superior C‐rate performance. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44515.