Solid polymer electrolytes based on poly(vinyl alcohol) incorporated with sodium salt and ionic liquid for electrical double layer capacitor

Farah, N.; Ng, H.M.; Numan, Arshid; Liew, Chiam–Wen; Latip, Normah Abdul; Ramesh, K.

doi:10.1016/j.mseb.2019.114468

Cited by 68 publications

(25 citation statements)

References 52 publications

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“…These characteristics make SPEs suitable candidates to be employed in a variety of energy storage devices such as computing laptops, cellular phones, electrochromic display devices, fuel cells, sensors, and smart credit cards [3,4]. Nowadays, the host polymers most commonly used by the researchers in the PEs are poly(vinyl alcohol) (PVA) [1][2][3][4][5][6][7], chitosan (CS) [8][9][10][11][12], methylcellulose (MC) [13][14][15], polyethylene oxide (PEO) [16][17][18], phosphomolybdic acid (PMA) [19], Nafion membranes [20], and sulfonated hydrocarbon [21].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Porous Proton Ion Conducting Solid Polymer Blend Electrolytes Based on PVA: CS Polymers: Structural, Morphological and Electrochemical Properties

et al. 2020

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In this study, porous cationic hydrogen (H+) conducting polymer blend electrolytes with an amorphous structure were prepared using a casting technique. Poly(vinyl alcohol) (PVA), chitosan (CS), and NH4SCN were used as raw materials. The peak broadening and drop in intensity of the X-ray diffraction (XRD) pattern of the electrolyte systems established the growth of the amorphous phase. The porous structure is associated with the amorphous nature, which was visualized through the field-emission scanning electron microscope (FESEM) images. The enhancement of DC ionic conductivity with increasing salt content was observed up to 40 wt.% of the added salt. The dielectric and electric modulus results were helpful in understanding the ionic conductivity behavior. The transfer number measurement (TNM) technique was used to determine the ion (tion) and electron (telec) transference numbers. The high electrochemical stability up to 2.25 V was recorded using the linear sweep voltammetry (LSV) technique.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Porous Proton Ion Conducting Solid Polymer Blend Electrolytes Based on PVA: CS Polymers: Structural, Morphological and Electrochemical Properties

et al. 2020

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“…Peng [46] reported the graphite oxide (GO) doped PVA/KCl/GO hydrogel had a high ionic conductivity of 47.5 mS/cm (2.3 wt% GO) compared with bare B-PVA/KCl hydrogel (32.6 mS/cm). Ramesh group [47] showed the ionic conductivity of solid polymer electrolytes based on PVA incorporated with sodium salt and ionic liquid improved the conductivity from 4.87 × 10 −3 to 2.31 mS/cm. Hashaikeh and coworkers [48] showed the sulfated cellulose/PVA composites as proton-conducting electrolyte for capacitors activated with 0.25M H2SO4 show a high ionic conductivity of 250 mS/cm.…”

Section: The Electrochemical Impedance Spectroscopy Testmentioning

confidence: 99%

“…The R s and R ct values are calculated from the results EIS. Compared with SSC-PVA/H 2 SO 4 , the R s and R ct of SSC-IL/PVA/H 2 SO 4 is relatively smaller because IL can be used as an ion source to obtain more carriers in IL-PVA/H 2 SO 4 , including imidazole cations BMIM + and BF 4 Ramesh group[47] showed the ionic conductivity of solid polymer electrolytes based on PVA incorporated with sodium salt and ionic liquid improved the conductivity from 4.87 × 10 −3 to 2.31 mS/cm. Hashaikeh and coworkers[48] showed the sulfated cellulose/PVA composites as proton-conducting electrolyte for capacitors activated with 0.25M H 2 SO 4 show a high ionic conductivity of 250 mS/cm.…”

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confidence: 99%

Poly(3,4-ethylenedioxythiophene) Based Solid-State Polymer Supercapacitor with Ionic Liquid Gel Polymer Electrolyte

et al. 2020

Polymers

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In this work, solid-state polymer supercapacitor (SSC) was assembled using poly(3,4-ethylenedioxythiophene/carbon paper (PEDOT/CP) as an electrode and ionic liquid (1-butyl-3-methylimidazole tetrafluoroborate)/polyvinyl alcohol/sulfuric acid (IL/PVA/H2SO4) as a gel polymer electrolyte (GPE). The GPE was treated through freezing–thawing (F/T) cycles to improve the electrochemical properties of PEDOT SSC. Cyclic voltammetry (CV), galvanostatic charge–discharge measurements (GCD) and electrochemical impedance spectroscopy (EIS) techniques and conductivity were carried out to study the electrochemical performance. The results showed that the SSC based on ionic liquid GPE (SSC-IL/PVA/H2SO4) has a higher specific capacitance (with the value of 86.81 F/g at 1 mA/cm2) than the SSC-PVA/H2SO4.The number of F/T cycles has a great effect on the electrochemical performance of the device. The energy density of the SSC treated with 3 F/T cycles was significantly improved, reaching 176.90 Wh/kg. Compared with the traditional electrolytes, IL GPE has the advantages of high ionic conductivity, less volatility, non-flammability and wider potential window. Moreover, the IL GPE has excellent elastic recovery and self-healing performance, leading to its great potential applications in flexible or smart energy storage equipment.

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“…Sodium-based salt is also found to give an equivalent overall performance in terms of conductivity (~10 −4 S/cm) and stability as the salt that contains NH 4 + ion [ 1 , 12 ] and Mg 2+ ion [ 26 , 27 ], and it can also be an alternative to lithium-based salts that might affect the environment [ 28 ]. The addition of sodium triflate (NaTf) salt was reported to increase the conductivity of polyvinyl alcohol-based electrolytes from 4.87 × 10 −6 S/cm to 2.31 × 10 −3 S/cm at room temperature [ 29 ]. Poy et al [ 30 ] also studied the effect of sodium-based salt on their two different electrolyte systems (sodium trifluoromethanesulfonimide (NaTFSI) and sodium trifluoromethanesulfonate (NaOTF)) and found that the conductivity of the systems was increased from 2.34 × 10 −4 S cm −1 to 1.79 × 10 −3 S cm −1 as the concentration of salt increased from 10 wt.…”

Section: Introductionmentioning

confidence: 99%

The Study of Plasticized Sodium Ion Conducting Polymer Blend Electrolyte Membranes Based on Chitosan/Dextran Biopolymers: Ion Transport, Structural, Morphological and Potential Stability

et al. 2021

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The polymer electrolyte system of chitosan/dextran-NaTf with various glycerol concentrations is prepared in this study. The electrical impedance spectroscopy (EIS) study shows that the addition of glycerol increases the ionic conductivity of the electrolyte at room temperature. The highest conducting plasticized electrolyte shows the maximum DC ionic conductivity of 6.10 × 10−5 S/cm. Field emission scanning electron microscopy (FESEM) is used to investigate the effect of plasticizer on film morphology. The interaction between the electrolyte components is confirmed from the existence of the O–H, C–H, carboxamide, and amine groups. The XRD study is used to determine the degree of crystallinity. The transport parameters of number density (n), ionic mobility (µ), and diffusion coefficient (D) of ions are determined using the percentage of free ions, due to the asymmetric vibration (υas(SO3)) and symmetric vibration (υs(SO3)) bands. The dielectric property and relaxation time are proved the non-Debye behavior of the electrolyte system. This behavior model is further verified by the existence of the incomplete semicircle arc from the Argand plot. Transference numbers of ion (tion) and electron (te) for the highest conducting plasticized electrolyte are identified to be 0.988 and 0.012, respectively, confirming that the ions are the dominant charge carriers. The tion value are used to further examine the contribution of ions in the values of the diffusion coefficient and mobility of ions. Linear sweep voltammetry (LSV) shows the potential window for the electrolyte is 2.55 V, indicating it to be a promising electrolyte for application in electrochemical energy storage devices.

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Solid polymer electrolytes based on poly(vinyl alcohol) incorporated with sodium salt and ionic liquid for electrical double layer capacitor

Cited by 68 publications

References 52 publications

Synthesis of Porous Proton Ion Conducting Solid Polymer Blend Electrolytes Based on PVA: CS Polymers: Structural, Morphological and Electrochemical Properties

Synthesis of Porous Proton Ion Conducting Solid Polymer Blend Electrolytes Based on PVA: CS Polymers: Structural, Morphological and Electrochemical Properties

Poly(3,4-ethylenedioxythiophene) Based Solid-State Polymer Supercapacitor with Ionic Liquid Gel Polymer Electrolyte

The Study of Plasticized Sodium Ion Conducting Polymer Blend Electrolyte Membranes Based on Chitosan/Dextran Biopolymers: Ion Transport, Structural, Morphological and Potential Stability

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