Membranes Made from Electrospun Polyacrylonitrile Nonwoven Fibers with Uniform Diameter for Lithium-Ion Battery Separators 


Vol. 21,  No. 10, pp. 2204-2214, Oct.  2020
10.1007/s12221-020-1243-4


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  Abstract

Membranes were prepared from polyacrylonitrile (PAN) fibers with uniform diameter for lithium-ion battery separators using optimized electrospinning parameters. In this work, the coefficient of variation (CV) is proposed as one of the indexes to evaluate the uniform consistency of fiber diameter. The most uniform fibrous membrane was compared with a control group that had different uniformity. The effects of the uniformity of the fiber diameter were studied in terms of the membrane porosity, electrolyte absorption, mechanical tensile strength, and thermal stability. The membranes were assembled into coin cells with lithium cobaltite cathodes and graphite anodes, and the performance of the cells was tested. As the uniformity of the fiber diameter increased, the ionic conductivity improved and the interface resistance decreased. The proposed separator improves the discharge capacity (181 mAh

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  Cite this article

[IEEE Style]

T. Dong, W. U. Arifeen, M. Kim, J. Choi, K. Yoo, T. J. Ko, "Membranes Made from Electrospun Polyacrylonitrile Nonwoven Fibers with Uniform Diameter for Lithium-Ion Battery Separators," Fibers and Polymers, vol. 21, no. 10, pp. 2204-2214, 2020. DOI: 10.1007/s12221-020-1243-4.

[ACM Style]

Ting Dong, Waqas Ul Arifeen, Minchoel Kim, Jungwook Choi, Kisoo Yoo, and Tae Jo Ko. 2020. Membranes Made from Electrospun Polyacrylonitrile Nonwoven Fibers with Uniform Diameter for Lithium-Ion Battery Separators. Fibers and Polymers, 21, 10, (2020), 2204-2214. DOI: 10.1007/s12221-020-1243-4.

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pISSN : 1229 - 9197
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