Electroactive Poly(Vinylidene Fluoride-Trifluorethylene) (PVDF-TrFE) Microporous Membranes for Lithium-Ion Battery Applications

Costa, Carlos M.; California, António; Cardoso, V. F.; Sencadas, Vítor; Rodrigues, L. C.; Silva, Maria Manuela; Lanceros‐Méndez, S.

doi:10.1080/00150193.2012.677729

Cited by 20 publications

(11 citation statements)

References 8 publications

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“…The potential applications of such smart/multifunctional materials have been increasing significantly, including nowadays areas such as sensors and actuators, [ 20,22 ] tissue engineering, [ 23,24 ] energy generation and storage, such as batteries, [ 25,26 ] among others ( Figure ).…”

Section: Introductionmentioning

confidence: 99%

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

Correia

Fernandes

Martins

et al. 2020

Adv Funct Materials

222

201

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Ionic liquids (ILs) have emerged as a novel class of chemical compounds for the development of advanced (multi)functional materials with outstanding potential in applications of several areas due to their unique properties and functionalities. The combination of ILs with polymers, in a composite, allows for developing smart materials, which synergistically combine the features of specific polymers and ILs. Moreover, ILs can be extensively modified by the incorporation of functional groups with specific properties into the cation, anion, or both. Thus, it is possible to tune the IL, the polymer, or both to obtain a broad spectrum of multifunctional composites and address the specific requirements of many applications. This work focusses on advanced materials and strategies concerning ILs and polymers for the development of smart IL/polymer‐based materials for applications including responsive and sensitive sensors, actuators, environment, batteries, fuel cells, and biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

Correia

Fernandes

Martins

et al. 2020

Adv Funct Materials

222

201

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“…More recently, PVDF-TFE novel polymer inclusion membranes (PIMs) were successfully prepared for Cr (VI) transport with high permeability and better selectivity [16]. In addition, another type of PDVF copolymer, PVDF-TrFE was used to prepare membranes for lithium-ion battery [17]. PVDF-HFP, as another commonly used PVDF-based copolymer, has also been widely investigated, not only on the optimization of the membrane preparation protocols [18][19][20], but also on its potential applications from ethyl acetate separation [21] to lithium-ion batteries [22,23].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of hydrophobic flat sheet and hollow fiber membranes from PVDF and PVDF-CTFE for membrane distillation

Wang

Zheng

et al. 2016

Journal of Membrane Science

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a b s t r a c tHydrophobic polyvinylidene fluoride (PVDF) membranes have been used in membrane distillation, however its performance in terms of permeation flux and salt rejection still needs to be improved. In this study, polyvinylidenedifluoride-co-chlorotrifluoroethylene (PVDF-CTFE), a PVDF based copolymer, was employed to fabricate both flat sheet and hollow fiber membranes. Two pore forming additives (PEG and LiCl) were used in order to examine their effects on the membrane micro-structure and consequently the distillation performance. The crystalline property of the polymers was studied via X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) to reveal its role in the membrane formation. The membrane morphology (SEM), surface property (AFM) and membrane properties (contact angle, pore size, porosity and pore size distribution) were systematically examined and compared among PVDF, PVDF-CTFE membranes as well as their counterparts with pore forming additives. The results revealed that PVDF-CTFE membrane exhibited optimal membrane morphology, pore structure and hydrophobicity, thus delivering better distillation performance (permeation flux up to 62.09 kg/m 2 h, and distillate conductivity as low as 5 μS/cm) in comparison with their PVDF membrane counterparts.

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“…PVDF and PVDF-based copolymers such as poly (vinylidene fluoride-co-tetrafluoroethylene) (PVDF-TFE) [14,15], poly (vinylidene fluoride-co-trifluorethylene) (PVDF-TrFE) [16], and poly (vinylidene fluoride-co-hexafluoropropene) (PVDF-HFP) [17][18][19] were commonly used for hydrophobic membrane preparation for their excellent chemical and mechanical properties. PVDF-CTFE is another common PVDF-based copolymer [13,20] which has shown potentials in membrane preparation.…”

Section: Introductionmentioning

confidence: 99%

Preparation of PVDF-CTFE hydrophobic membranes for MD application: Effect of LiCl-based mixed additives

Zheng

Wei

et al. 2016

Journal of Membrane Science

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a b s t r a c tHydrophobic flat-sheet membranes were prepared by poly (vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) via the non-solvent induced phase separation (NIPS) process for membrane distillation (MD) application. Different types of LiCl-based mixed additives were applied to investigate their effects on membrane properties and MD performance. The membranes were evaluated in terms of membrane morphology, pore size and distribution, porosity, surface roughness, hydrophobicity, as well as the direct contact membrane distillation (DCMD) performance. Clear evidences were obtained that the mixed additives altered the phase inversion process, which resulted in the variation in membrane morphology, structure, properties and performance. The mass ratio of PEG/LiCl ranging from 5:0 to 0:5 was comprehensively investigated to study the synergistic effects of two additives on PVDF-CTFE membranes. The membrane M5 (PEG:LiCl ¼1:1, total content 8 wt% ) showed optimal properties and MD performance for combining the structure of higher hydrophobicity and pore interconnectivity, small pore size and narrow pore size distribution. The addition of LiCl to PEG-containing solutions benefited the solid-liquid demixing process, which increased the hydrophobicity, porosity, pore interconnectivity, and MD performance of the resultant membranes. While added PEG to LiCl-containing solutions showed slightly influences. Furthermore, it was also found that PVP/LiCl and glycerol/LiCl were not suitable for hydrophobic membrane preparation as they strikingly reduced membrane hydrophobicity. While H 3 PO 4 and H 2 O were confirmed suitable to mix with LiCl for hydrophobic PVDF-CTFE membrane preparation.

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Electroactive Poly(Vinylidene Fluoride-Trifluorethylene) (PVDF-TrFE) Microporous Membranes for Lithium-Ion Battery Applications

Cited by 20 publications

References 8 publications

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

Fabrication of hydrophobic flat sheet and hollow fiber membranes from PVDF and PVDF-CTFE for membrane distillation

Preparation of PVDF-CTFE hydrophobic membranes for MD application: Effect of LiCl-based mixed additives

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