Fibrous cellulose membrane mass produced via forcespinning® for lithium-ion battery separators

Weng, Baicheng; Xu, Fenghua; Alcoutlabi, Mataz; Mao, Yuanbing; Lozano, Karen

doi:10.1007/s10570-015-0564-8

Cited by 107 publications

(63 citation statements)

References 51 publications

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“…Many reviews [2][3][4][5] into nanofibres have been published which investigate ever more uses for these amazing materials from many production methods. The applications that show significant promise for these materials include biomedical applications (drug delivery and tissue engineering scaffolds) [6][7][8][9], energy storage devices (lithium ion batteries) [10][11][12], and also air and water filtration applications [13][14][15]. Polymer nanofibres possess a very high surface area to volume ratio resulting in attractive applications where this property is advantageous.…”

Section: Introductionmentioning

confidence: 99%

PA6 Nanofibre Production: A Comparison between Rotary Jet Spinning and Electrospinning

Rogalski

Bastiaansen

Peijs

2018

Fibers

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Abstract:Polymer nanofibres are created from many different techniques, with varying rates of production. Rotary jet spinning is a relatively new technique for making nanofibres from both polymer solutions and melt. With electrospinning being by far the most widespread processing method for polymer nanofibres, we performed a direct comparison of polyamide 6 (PA6) nanofibre production between these two methods. It was found that electrospinning produced slightly smaller-diameter fibres, which scaled with a decrease in solution viscosity. In comparison, rotary jet spun fibres could be produced from a reduced range of polymer concentrations and exhibited therefore slightly larger diameters with greater variation. Crystallinity of the fibres was also compared between the two techniques and the bulk polymer, which showed a decrease in crystallinity compared to bulk PA6.

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Section: Introductionmentioning

confidence: 99%

PA6 Nanofibre Production: A Comparison between Rotary Jet Spinning and Electrospinning

Rogalski

Bastiaansen

Peijs

2018

Fibers

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“…Contemporary LIB separators, which typically are made from polyolefin-based polymer materials, generally suffer from low thermal stabilities and electrolyte wettabilities (Chun et al 2012;Prasanna et al 2014;Ryou et al 2011;Weng et al 2015;Xu et al 2014a, b;Zhang et al 2013Zhang et al , 2014Zhou et al 2013) which has resulted in a search for alternative separator materials. One of the most studied and utilized alternative materials is cellulose, due to its abundance, thermal stability, hydrophilicity and low cost (Carlsson et al 2014;Mihranyan 2011;Pan et al 2016;Wang et al 2014;Xiao et al 2014;Zhu et al 2016;Zolin et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…One of the most studied and utilized alternative materials is cellulose, due to its abundance, thermal stability, hydrophilicity and low cost (Carlsson et al 2014;Mihranyan 2011;Pan et al 2016;Wang et al 2014;Xiao et al 2014;Zhu et al 2016;Zolin et al 2015). It has been reported that cellulose/polysulfonamide composite separators exhibit good wettabilities and high thermal stabilities (Xu et al 2014b) and that cellulose membranes produced by force spinning of cellulose acetate also exhibit good wettabilities, high porosities and high ionic conductivities (Weng et al 2015). A bacterial cellulose based separator composed of a cross-linked three dimensional network exhibiting good performance in a battery has likewise been demonstrated (Jiang et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Thickness difference induced pore structure variations in cellulosic separators for lithium-ion batteries

et al. 2017

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The pore structure of the separator is crucial to the performance of a lithium-battery as it affects the cell resistance. Herein, a straightforward approach to vary the pore structure of Cladophora cellulose (CC) separators is presented. It is demonstrated that the pore size and porosity of the CC separator can be increased merely by decreasing the thickness of the CC separator by using less CC in the manufacturing of the separator. As the pore size and porosity of the CC separator are increased, the mass transport through the separator is increased which decreases the electrolyte resistance in the pores of the separator. This enhances the battery performance, particularly at higher cycling rates, as is demonstrated for LiFePO 4 /Li half-cells. A specific capacity of around 100 mAh g -1 was hence obtained at a cycling rate of 2 C with a 10 lm thick CC separator while specific capacities of 40 and close to 0 mAh g -1 were obtained for separators with thicknesses of 20 and 40 lm, respectively. As the results also showed that a higher ionic conductivity was obtained for the 10 lm thick CC separator than for the 20 and 40 lm thick CC separators, it is clear that the different pore structure of the separators was an important factor affecting the battery performance in addition to the separator thickness. The present straightforward, yet efficient, strategy for altering the pore structure hence holds significant promise for the manufacturing of separators with improved performance, as well as for fundamental studies of the influence of the properties of the separator on the performance of lithium-ion cells.

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“…However, the drawback of the electrospinning process is its limited range of materials i.e., melt and solutions at higher rates. The Forcespinning ® method, developed by Sarkar, Lozano, and coworkers at UTPA (now UTRGV), has been studied and proven to be suitable for the mass production of fibers from melt and solution materials for energy storage and sensor applications [24][25][26]. The centrifugal spinning method was originally developed by Hooper in 1924 to produce artificial silk threads from viscose or equivalent substances by applying centrifugal forces to a viscous material [27].…”

Section: Introductionmentioning

confidence: 99%

Effect of Polymer Concentration, Rotational Speed, and Solvent Mixture on Fiber Formation Using Forcespinning®

Obregon

Agubra

Pokhrel

et al. 2016

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Polycaprolactone (PCL) fibers were produced using Forcespinning ® (FS). The effects of PCL concentration, solvent mixture, and the spinneret rotational speed on fiber formation were evaluated. The concentration of the polymer in the solvents was a critical determinant of the solution viscosity. Lower PCL concentrations resulted in low solution viscosities with a correspondingly low fiber production rate with many beads. Bead-free fibers with high production rate and uniform fiber diameter distribution were obtained from the optimum PCL concentration (i.e., 12.5 wt%) with tetrahydrofuran (THF) as the solvent. The addition of N, N-dimethylformamide (DMF) to the THF solvent promoted the gradual formation of beads, split fibers, and generally affected the distribution of fiber diameters. The crystallinity of PCL fibers was also affected by the processing conditions, spinning speed, and solvent mixture.

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Fibrous cellulose membrane mass produced via forcespinning® for lithium-ion battery separators

Cited by 107 publications

References 51 publications

PA6 Nanofibre Production: A Comparison between Rotary Jet Spinning and Electrospinning

PA6 Nanofibre Production: A Comparison between Rotary Jet Spinning and Electrospinning

Thickness difference induced pore structure variations in cellulosic separators for lithium-ion batteries

Effect of Polymer Concentration, Rotational Speed, and Solvent Mixture on Fiber Formation Using Forcespinning®

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