Electrospun cellulose acetate/poly(vinylidene fluoride) nanofibrous membrane for polymer lithium-ion batteries

Kang, Weimin; Ma, Xiaoqing; Zhao, Huihui; Ju, Jingge; Zhao, Yue; Yan, Jing; Cheng, Bowen

doi:10.1007/s10008-016-3271-y

Cited by 60 publications

(14 citation statements)

References 45 publications

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“…As a polymer matrix of GPEs, poly(vinylidene fluoride- co -hexafluoropropylene)-cellulose acetate (PHC) with high electrolyte uptake − is prepared via a simple electrospinning method. − SA-grafted PHC (SA-PHC) is obtained subsequently by a simple soaking and intermolecular reaction process between the carboxyl in SA and hydroxyl in PHC as shown in Figure . Both PHC and SA-PHC possess a 1D fiber morphology with a diameter of about 0.5 μm.…”

Section: Resultsmentioning

confidence: 99%

Metalophilic Gel Polymer Electrolyte for in Situ Tailoring Cathode/Electrolyte Interface of High-Nickel Oxide Cathodes in Quasi-Solid-State Li-Ion Batteries

Sun

Wang

et al. 2019

ACS Appl. Mater. Interfaces

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High-Ni layered oxides are potential cathodes for high energy Li-ion batteries due to their large specific capacity advantage. However, the fast capacity fade by undesirable structural degradation in liquid electrolyte during long-term cycling is a stumbling block for the commercial application of high-Ni oxides. In this work, a functional gel polymer electrolyte, grafted with sodium alginate, is introduced to increase the stability of high-Ni oxide cathodes at the levels of both the particle and electrode. An in situ generated ion-conducting layer appears on the interface through the chemical interaction between transition-metal cations of the cathode and the metalophilic reticulum group in sodium alginate. Such a tailoring layer can not only enhance the interfacial compatibility on the cathode/electrolyte interface, reducing the interfacial resistance, but also inhibit the HF corrosion, suppressing the dissolution of transition-metal cations and harmful gradient distribution of components through the oxide cathode at the electrode level. Meanwhile, detrimental microcracks in oxide microspheres and between primary crystallites are impressively inhibited at the particle level. The high-Ni oxide cathode with the metalophilic gel polymer electrolyte shows excellent cycle stability with large initial capacity of 204.9 mA h g −1 at a 1.0C rate and high discharge capacity retention within 300 cycles at high temperature.

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Section: Resultsmentioning

confidence: 99%

Metalophilic Gel Polymer Electrolyte for in Situ Tailoring Cathode/Electrolyte Interface of High-Nickel Oxide Cathodes in Quasi-Solid-State Li-Ion Batteries

Sun

Wang

et al. 2019

ACS Appl. Mater. Interfaces

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“…This fact is because the porous membranes consisting of electrospun nanofiber have many superior properties such as a large specific surface area, low basis weight, small pore size and high porosity of 30%-90%, which can provide abundant channel for Li ion transport to improve the electrode/electrolyte interface property. Kang's group prepared PVDF/CA non-woven membranes by electrospinning [42] . An ionic conductivity of 2.61 × 10 −3 S cm −1 for the GPEs can be obtained when the weight ratio of CA to PVDF in the spinning solution was 2:8.…”

Section: The Gpe Based On Bio-based Polymermentioning

confidence: 99%

Recent advances in gel polymer electrolyte for high-performance lithium batteries

Zhu

Wang

et al. 2019

Journal of Energy Chemistry

271

140

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“…As this effect of the electric field exerts a similar magnitude of force on the droplet as the surface tension, a cone shape with convex sides and a rounded tip forms. The round cone shape will continually form symmetrically as long as the continues flow of polymeric solution is supplied along with constant applied potential [17]. The formation of Taylor cone can be summarized as follows:…”

Section: Resultsmentioning

confidence: 99%

Effect of PVDF-CA Ratio on Electrospun Membrane for Water–Oil Filtration Application

Alias

Misnon

Jose

2020

MST

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Oil spillage and generation of industrial water-oil wastewater mixture ignite a focus on filtration technology. Electrospinning technique provides a versatile route in producing tunable diameter and pores in nanofiber filtration membrane development. In this work, polyvinylidene difluoride (PVDF) and cellulose acetate (CA) electrospun membrane at different concentration ratios were synthesized for water-oil filtration application. The polymeric solutions were characterized using viscometer and conductivity testing, whereas the membranes were analyzed using contact angle, tensile test, scanning electron microscopy (SEM), and filtration testing of oil (dichloromethane). Conductivity test showed a decreased conductivity along with decrement of CA ratio in the polymeric solution. The viscosity results showed a rising trend along with the increment of CA in the polymeric solution along with the decrement of PVDF ratio. SEM result showed that all membranes had a fiber diameter range of 210-485 nm and pore size range of 235-856 nm. The tensile test showed a decreasing tensile strength as the ratio of PVDF in the electrospun membrane decreased. The membrane with PVDF-to-CA ratio of 90:10 showed optimum performance for water-oil filtration with a flux of 14,111 Lm −2 h −1 and oil recovery of 94%. Abstrak Efek dari Perbandingan PVDF-CA pada Membran Pintal Listrik untuk Penerapan Penyaringan Air-minyak. Kemajuan industri bersama dengan kebutuhan minyak bumi menyebabkan kebocoran limbah industri dan minyak mentah menghasilkan sumber air yang akan tercemar sebagai konsekuensi yang memicu fokus dalam perkembangan terbaru dalam teknologi filtrasi. Teknik elektrospinning telah menyediakan metode serbaguna baru dalam memproduksi nanofibers yang memiliki kisaran konstan diameter dan pori.. Elektrospun membran PVDF dan CA komposit pada rasio yang berbeda telah dibuat untuk aplikasi filtrsi air-minyak. Membran yang ditandai dengan menggunakan Viscometer, pengujian konduktivitas, sudut kontak, pengujian tarik, pengujian filtrasi dan SEM. S2 membran direkam menjadi membran optimal untuk aplikasi filtrasi air-minyak dengan 14111 Lm-2 h-1 fluks dan pemulihan 94%. Hasil SEM menunjukkan semua membran memiliki diameter serat berkisar dari 210-485 nm dan ukuran pori berkisar dari 856-235 nm dengan membran S1 memiliki ukuran pori paling sedikit dengan 235 nm diikuti oleh membran S2 dengan 236 nm. Pengujian konduktivitas menunjukkan penurunan konduktivitas bersama dengan penurunant rasio CA dalam larutan polimer. Hasil uji tarik menunjukkan kecenderungan penurunan kekuatan tarik sebagai rasio PVDF pada membran elektrospun menurun. Hasil viskositas menunjukkan tren naik bersama dengan naik CA dalam larutan polimer bersama dengan penurunan rasio PVDF.

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Electrospun cellulose acetate/poly(vinylidene fluoride) nanofibrous membrane for polymer lithium-ion batteries

Cited by 60 publications

References 45 publications

Metalophilic Gel Polymer Electrolyte for in Situ Tailoring Cathode/Electrolyte Interface of High-Nickel Oxide Cathodes in Quasi-Solid-State Li-Ion Batteries

Metalophilic Gel Polymer Electrolyte for in Situ Tailoring Cathode/Electrolyte Interface of High-Nickel Oxide Cathodes in Quasi-Solid-State Li-Ion Batteries

Recent advances in gel polymer electrolyte for high-performance lithium batteries

Effect of PVDF-CA Ratio on Electrospun Membrane for Water–Oil Filtration Application

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