Nanofiber-based Matrimid organogel membranes for battery separator

Korinthia Yuriar-Arredondo, Mitchell R. Armstrong, Bohan Shan, Wei Zeng, Wenwen Xu, Hanqing Jiang, Bin Mu

Research output: Research - peer-reviewArticle

Abstract

Porous organogel membranes (POMs) composed of electrospun nanofibers with a crosslinking modification have demonstrated great potential as battery separators. As a proof of concept, we fabricated such membranes using electrospun Matrimid nanofibers crosslinked through a room temperature solvent immersion technique. The effects of the crosslinking modification on the chemical structure and mechanical properties of electrospun Matrimid mats were evaluated using Fourier transform infrared spectroscopy and dynamic mechanical analysis tests. Stability was tested on the resulting POMs showing that the crosslinking modification on Matrimid drastically improved fiber chemical and sovothermal resistance. A Matrimid organogel membrane with a 3-day crosslinking modification was tested as separator in a Li-ion battery. When soaked in dimethylformamide (DMF), no thermal shrinkage was observed at temperature up to 180 °C. At 190 °C and 200 °C, Matrimid membranes showed shrinkage of 10% and 20% with respect to their original sample area, respectively. The discharge capacity of the battery was over 93% after 20 cycles with an average Coulombic efficiency above 98%. The membrane retained physical stability and flexibility after being in contact with the electrolyte LiPF6 in EC-DEC-DMC for three weeks of testing and demonstrated great potential as battery separators in applications involving strong solvents and high temperature.

LanguageEnglish (US)
Pages158-164
Number of pages7
JournalJournal of Membrane Science
Volume546
DOIs
StatePublished - Jan 15 2018

Fingerprint

Nanofibers
Separators
Membranes
separators
membranes
Crosslinking
crosslinking
Temperature
shrinkage
electric batteries
temperature
Dimethylformamide
Dynamic mechanical analysis
Fourier transform infrared spectroscopy
Electrolytes
Mechanical properties
Fibers
Testing
Hot Temperature
Lithium-ion batteries

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

Yuriar-Arredondo, K., Armstrong, M. R., Shan, B., Zeng, W., Xu, W., Jiang, H., & Mu, B. (2018). Nanofiber-based Matrimid organogel membranes for battery separator. Journal of Membrane Science, 546, 158-164. DOI: 10.1016/j.memsci.2017.10.004

Nanofiber-based Matrimid organogel membranes for battery separator. / Yuriar-Arredondo, Korinthia; Armstrong, Mitchell R.; Shan, Bohan; Zeng, Wei; Xu, Wenwen; Jiang, Hanqing; Mu, Bin.

In: Journal of Membrane Science, Vol. 546, 15.01.2018, p. 158-164.

Research output: Research - peer-reviewArticle

Yuriar-Arredondo, K, Armstrong, MR, Shan, B, Zeng, W, Xu, W, Jiang, H & Mu, B 2018, 'Nanofiber-based Matrimid organogel membranes for battery separator' Journal of Membrane Science, vol 546, pp. 158-164. DOI: 10.1016/j.memsci.2017.10.004
Yuriar-Arredondo K, Armstrong MR, Shan B, Zeng W, Xu W, Jiang H et al. Nanofiber-based Matrimid organogel membranes for battery separator. Journal of Membrane Science. 2018 Jan 15;546:158-164. Available from, DOI: 10.1016/j.memsci.2017.10.004
Yuriar-Arredondo, Korinthia ; Armstrong, Mitchell R. ; Shan, Bohan ; Zeng, Wei ; Xu, Wenwen ; Jiang, Hanqing ; Mu, Bin. / Nanofiber-based Matrimid organogel membranes for battery separator. In: Journal of Membrane Science. 2018 ; Vol. 546. pp. 158-164
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