Ionic Conductivity and Cycling Stability Improvement of PVDF/Nano-Clay Using PVP as Polymer Electrolyte Membranes for LiFePO4 Batteries

Dyartanti, Endah Retno; Purwanto, Agus; Widiasa, I Nyoman; Susanto, Heru

doi:10.3390/membranes8030036

Cited by 47 publications

(23 citation statements)

References 46 publications

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“…The appearance of this structure is a result of the separation of different phases. Soluble PVP soluble in water can accelerate the phase separation in the phase transfer process, which leads to the rapid collapse of polymer chains and then form the (3D) network structure 20 . With respect to PVP 1 GF 1 shown in Figure 2(d), when both GFs and PVP are added, the size of the pores is also big.…”

Section: Resultsmentioning

confidence: 99%

“…Many polymers, such as poly(ethylene oxide) (PEO), 15,16 poly(methyl methacrylate) (PMMA), 17 poly(acrylonitrile) (PAN), 18 poly(vinylidene fluoride) (PVDF), 19,20 poly(vinylidene‐ co ‐hexafluoropropylene) (PVDF‐ co ‐HFP) 21–23 have been commonly used as polymer matrix materials for QSPEs. Thereinto, porous PVDF‐ co ‐HFP materials are received widespread attention, because PVDF works as crystalline portion offering excellent chemical stability and HFP acts as amorphous portion offering plasticity, which favor high‐ionic conductivity 24 .…”

Section: Introductionmentioning

confidence: 99%

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Poly(vinylidene‐co‐hexafluoropropylene) membrane modified with glass fibers and polyvinyl pyrrolidone: Mechanical and electrochemical properties

Zheng

Qiu

Wang

et al. 2020

J of Applied Polymer Sci

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The polymer electrolytes based on poly(vinylidene‐co‐hexafluoropropylene) (PVDF‐co‐HFP) have been widely studied and applied in devices for its excellent electrochemical and mechanical properties. Here, porous PVDF‐co‐HFP membrane modified with glass fibers (GFs) and polyvinyl pyrrolidone (PVP) were fabricated by phase‐transfer method. When the dosage of GFs exceeded 1 wt%, the composite membranes exhibited 6.11 MPa tensile strength. When the dosage of GFs and PVP reached 1% (PVP1GF1), respectively, the composite membranes in porous network structure possessed the highest electrolyte uptake of 251.02%, the thermal stability of 343°C and the ionic conductivity of 3.05 × 10−3 S cm−1. Electrochromic device (ECD) was assembled with PVP1GF1 electrolyte, showing quick responses between the bleached and the color states within 3 s. The PVDF‐co‐HFP composite electrolyte was expected to be effective substitutes for liquid electrolytes used in ECDs.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Poly(vinylidene‐co‐hexafluoropropylene) membrane modified with glass fibers and polyvinyl pyrrolidone: Mechanical and electrochemical properties

Zheng

Qiu

Wang

et al. 2020

J of Applied Polymer Sci

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“…This combination optimizes physical–chemical properties, such as resistance to mechanical stresses [ 8 ], thermal stability [ 9 ], gas [ 10 ], and ultraviolet barrier [ 11 ]. It also improves the ionic conductivity, porosity, and electrolyte uptake, as already shown for polymer electrolyte membranes (PEMs) made of the mixture of poly(vinylidene fluoride) (PVDF), poly(vinylpyrrolidone) (PVP), and montmorillonite (MMT) clay, soaked in LiPF 6 [ 12 ].…”

Section: Introductionmentioning

confidence: 82%

Nanocomposite Polymer Electrolytes of Sodium Alginate and Montmorillonite Clay

et al. 2021

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Nanocomposite polymer electrolytes (NPEs) were synthesized using sodium alginate (Alg) and either sodium (SCa-3-Na+)- or lithium (SCa-3-Li+)-modified montmorillonite clays. The samples were characterized by structural, optical, and electrical properties. SCa-3-Na+ and SCa-3-Li+ clays’ X-ray structural analyses revealed peaks at 2θ = 7.2° and 6.7° that corresponded to the interlamellar distances of 12.3 and 12.8 Å, respectively. Alg-based NPEs X-ray diffractograms showed exfoliated structures for samples with low clay percentages. The increase of clay content promoted the formation of intercalated structures. Electrochemical Impedance Spectroscopy revealed that Alg-based NPEs with 5 wt% of SCa-3-Na+ clay presented the highest conductivity of 1.96 × 10−2 S/cm2, and Alg with 10 wt% of SCa-3-Li+ showed conductivity of 1.30 × 10−2 S/cm2, both measured at 70 °C. From UV-Vis spectroscopy, it was possible to infer that increasing concentration of clay promoted a decrease of the samples’ transmittance and, consequently, an increase of their reflectance.

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“…Compared with conventional ceramic nanofillers, GO has some advantages because of its tunable surface functionalities, high compatibility, and excellent dispersion with the polymer network. Dyartanti et al [ 168 ] prepared a PVDF-PVP-based GPE containing an montmorillonite (MMT) nano-clay as a filler. The addition of MMT clay showed an increased porosity of host polymer and enhanced the uptake of LE, leading to an increased ionic conductivity of 5.61 × 10 0 mS cm −1 .…”

Section: Promising Applications Of Gpes In Various Battery Systemsmentioning

confidence: 99%

Inorganic Fillers in Composite Gel Polymer Electrolytes for High-Performance Lithium and Non-Lithium Polymer Batteries

Huy

Hur

2021

Nanomaterials

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Among the various types of polymer electrolytes, gel polymer electrolytes have been considered as promising electrolytes for high-performance lithium and non-lithium batteries. The introduction of inorganic fillers into the polymer-salt system of gel polymer electrolytes has emerged as an effective strategy to achieve high ionic conductivity and excellent interfacial contact with the electrode. In this review, the detailed roles of inorganic fillers in composite gel polymer electrolytes are presented based on their physical and electrochemical properties in lithium and non-lithium polymer batteries. First, we summarize the historical developments of gel polymer electrolytes. Then, a list of detailed fillers applied in gel polymer electrolytes is presented. Possible mechanisms of conductivity enhancement by the addition of inorganic fillers are discussed for each inorganic filler. Subsequently, inorganic filler/polymer composite electrolytes studied for use in various battery systems, including Li-, Na-, Mg-, and Zn-ion batteries, are discussed. Finally, the future perspectives and requirements of the current composite gel polymer electrolyte technologies are highlighted.

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Ionic Conductivity and Cycling Stability Improvement of PVDF/Nano-Clay Using PVP as Polymer Electrolyte Membranes for LiFePO4 Batteries

Cited by 47 publications

References 46 publications

Poly(vinylidene‐co‐hexafluoropropylene) membrane modified with glass fibers and polyvinyl pyrrolidone: Mechanical and electrochemical properties

Poly(vinylidene‐co‐hexafluoropropylene) membrane modified with glass fibers and polyvinyl pyrrolidone: Mechanical and electrochemical properties

Nanocomposite Polymer Electrolytes of Sodium Alginate and Montmorillonite Clay

Inorganic Fillers in Composite Gel Polymer Electrolytes for High-Performance Lithium and Non-Lithium Polymer Batteries

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