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Oriented PAN/PVDF/PAN laminated nanofiber separator for lithium-ion batteries

Oriented PAN/PVDF/PAN laminated nanofiber separator for lithium-ion batteries Electrospun nanofiber separators have excellent properties in terms of large surface area and high porosity, which benefits the rate capability, electrochemical stability, and safety performance of lithium-ion batteries. Herein, a 0°PAN/PVDF/90°PAN-oriented composite nanofiber separator is prepared, which is prepared layer by layer by electrospinning technology and drum orientation collector. The results show that when the rotating speed of the drum is 600 r min−1, the 0°PAN/PVDF/90°PAN-oriented composite nanofiber separator has high porosity (about 85%), improved transverse and longitudinal tensile properties (10.33 MPa and 11.03 MPa, respectively), good dimensional stability at 160°C, and good electrochemical performance (specific charge capacity of 165 mAh g−1 at 0.5C and 142.7 mAh g−1 at 1C, capacity retention of 90% after 100 cycles). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Textile Research Journal SAGE

Oriented PAN/PVDF/PAN laminated nanofiber separator for lithium-ion batteries

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References (20)

Publisher
SAGE
Copyright
© The Author(s) 2021
ISSN
0040-5175
eISSN
1746-7748
DOI
10.1177/00405175211005027
Publisher site
See Article on Publisher Site

Abstract

Electrospun nanofiber separators have excellent properties in terms of large surface area and high porosity, which benefits the rate capability, electrochemical stability, and safety performance of lithium-ion batteries. Herein, a 0°PAN/PVDF/90°PAN-oriented composite nanofiber separator is prepared, which is prepared layer by layer by electrospinning technology and drum orientation collector. The results show that when the rotating speed of the drum is 600 r min−1, the 0°PAN/PVDF/90°PAN-oriented composite nanofiber separator has high porosity (about 85%), improved transverse and longitudinal tensile properties (10.33 MPa and 11.03 MPa, respectively), good dimensional stability at 160°C, and good electrochemical performance (specific charge capacity of 165 mAh g−1 at 0.5C and 142.7 mAh g−1 at 1C, capacity retention of 90% after 100 cycles).

Journal

Textile Research Journal – SAGE

Published: Aug 1, 2022

Keywords: Electrospinning; separator; strength enhancement; orientation; PAN; PVDF

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