A novel hierarchically structured and highly hydrophilic poly(vinyl alcohol-co-ethylene)/poly(ethylene terephthalate) nanoporous membrane for lithium-ion battery separator

Xia, Ming; Liu, Qiongzhen; Zhou, Zhou; Tao, Yifei; Li, MuFang; Liu, Ke; Wu, Zhihong; Wang, Dong

doi:10.1016/j.jpowsour.2014.04.151

Cited by 68 publications

(46 citation statements)

References 32 publications

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“…7 Moreover, the electrospinning technology is a simple, low-cost and high-tech method which can prepare nanobers directly and continuously and so it has drawn attention from many researchers. [8][9][10][11][12] Some high-performance multi-level structured nanobers with high specic surface areas and high porosities have been prepared by one-step electrospinning [13][14][15][16][17][18] and have been widely used in the information, energy 19,20 and environmental 21,22 industries as well as in other elds. 23 Kang et al 24 examined the feasibility of electrospinning polyurethane onto substrate fabrics to prepare waterproof breathable fabrics.…”

Section: -6mentioning

confidence: 99%

Designing waterproof breathable material with moisture unidirectional transport characteristics based on a TPU/TBAC tree-like and TPU nanofiber double-layer membrane fabricated by electrospinning

Shi

Deng

et al. 2017

RSC Adv.

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In this study, a thermoplastic polyurethane (TPU) tree-like nanofiber membrane was fabricated via one-step electrospinning by adding a small amount of tetrabutylammonium chloride (TBAC). On the basis of the "push and pull" effect, double-layer membranes composed of pure TPU nanofiber membranes (hydrophobic) and TPU/TBAC tree-like nanofiber membranes (hydrophilic) were prepared by the direct electrospinning compounding method. The double-layer membranes were used as waterproof breathable materials with moisture unidirectional transport properties and good shielding properties. The water resistance, mechanical, waterproof, moisture permeability, air permeability, air filtration and moisture unidirectional transport performances of the double-layer membranes were tested. The results showed that the double-layer TPU membranes displayed good performances compared with the existing products on the market; they provide a new approach for the development of waterproof breathable materials.

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Section: -6mentioning

confidence: 99%

Designing waterproof breathable material with moisture unidirectional transport characteristics based on a TPU/TBAC tree-like and TPU nanofiber double-layer membrane fabricated by electrospinning

Shi

Deng

et al. 2017

RSC Adv.

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show abstract

“…The average pore size of the separator was evaluated using a mercury porosimeter (Auto Pore IV9500, Micromeritics). The porosity of the separators was determined using N-butanol uptake method based on the following equation [23]:…”

Section: Morphology and Structurementioning

confidence: 99%

“…5a. The bulk resistance of the separator can be acquired from the high-frequency intercept of the Nyquist plot on the Z′ axis [23]. The bulk resistance of the PET nonwoven, MSPC separator, and PE separator is about 0.2 Ω, 0.57 Ω, and 2.05 Ω, respectively.…”

Section: Electrochemical Performance Of the Composite Separatormentioning

confidence: 99%

Hollow mesoporous silica sphere-embedded composite separator for high-performance lithium-ion battery

Xiao

Wang

et al. 2016

J Solid State Electrochem

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A high-performance composite separator based on hollow mesoporous silica spheres, poly(vinylidene fluorideco-hexafluoropropylene) (PVdF-HFP), and poly(ethylene terephthalate) nonwoven was explored as lithium-ion battery separator via a dip coating technique followed by a phase separation wet process. Systematical investigations including morphology characterization, porosity measurement, electrolyte wettability, thermal shrinkage testing, and cell performance examination are carried out. It is demonstrated that the unique mesoporous structures of silica spheres endow the composite separator with well-defined microporous structure. Owing to the preferable microstructure and relatively polar constituents, the composite separator exhibits higher porosity, superior electrolyte wettability, and outstanding thermal stability. Based on the above advantages, the composite separator shows better electrochemical performances, such as the discharge C-rate capability and cycling performance, as compared to the commercialized PE separator. This research presents a simple approach to prepare high-performance separator, which is demonstrated to be a good candidate for lithium-ion batteries.

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“…To investigate the surface hydrophilicity of PES membranes, the angle between a small droplet of water and the flat horizontal surface of the membrane was measured by Contact Angle Goniometric Instrument. The lower contact angle represents the greater tendency for water to wet the membrane, the higher surface energy and the higher hydrophilicity [40,41]. The effect of GO-Ly and CRGO-Ly of different concentration on contact angle of hybrid membranes is given in …”

Section: Hydrophilicity Of Membranesmentioning

confidence: 99%

Graphene immobilized enzyme/polyethersulfone mixed matrix membrane: Enhanced antibacterial, permeable and mechanical properties

Duan

Wang

Zhang

et al. 2015

Applied Surface Science

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A novel hierarchically structured and highly hydrophilic poly(vinyl alcohol-co-ethylene)/poly(ethylene terephthalate) nanoporous membrane for lithium-ion battery separator

Cited by 68 publications

References 32 publications

Designing waterproof breathable material with moisture unidirectional transport characteristics based on a TPU/TBAC tree-like and TPU nanofiber double-layer membrane fabricated by electrospinning

Designing waterproof breathable material with moisture unidirectional transport characteristics based on a TPU/TBAC tree-like and TPU nanofiber double-layer membrane fabricated by electrospinning

Hollow mesoporous silica sphere-embedded composite separator for high-performance lithium-ion battery

Graphene immobilized enzyme/polyethersulfone mixed matrix membrane: Enhanced antibacterial, permeable and mechanical properties

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