Structure, morphology and ionic conductivity of solid polymer electrolyte

Dey, Arup; Karan, Santanu; Dey, Abhishek; De, Sourya Joyee

doi:10.1016/j.materresbull.2011.07.008

Cited by 37 publications

(21 citation statements)

References 31 publications

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“…Therefore, ionic transference number goes down at high salt concentrations similar to the ionic conductivity. This clearly proves the direct relationship between the ionic conductivity and the ionic transference number (Dey et al, 2011). Figure 3 shows the discharge characteristics of the cells fabricated using GPE samples having different salt concentrations.…”

Section: Effect Of Salt Concentrationsupporting

confidence: 57%

Effect of the gel polymer electrolyte conductivity on the performance of Zn rechargeable cells

Perera

Vidanapathirana

2017

Ceylon J. Sci.

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Gel polymer electrolytes (GPEs) have been extensively considered for various applications such as primary and rechargeable cells, super capacitors and electrochromic devices. Various strategies have been adopted to enhance their properties so as to develop efficient and effective devices. One such method is to increase the ionic conductivity of the electrolyte. In this study, attempts were made to study the variation of ionic conductivity with salt concentration of a GPE and to evaluate the dependence of performance on conductivity in a rechargeable cell. The composition was optimized by varying the salt concentration. The highest room temperature conductivity of 4.46×10 -3 Scm -1 was obtained with the composition 50 PVdF : 100 EC : 100 PC : 80 ZnTf (by weight). The maximum ionic transference number was also obtained with this composition and it was 0.97. Four different cells were fabricated with four different salt concentrations and the best performance was observed with the cell having the GPE of the highest conductivity. This clearly proves that performance of the device depends on the conductivity of the electrolyte.

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Section: Effect Of Salt Concentrationsupporting

confidence: 57%

Effect of the gel polymer electrolyte conductivity on the performance of Zn rechargeable cells

Perera

Vidanapathirana

2017

Ceylon J. Sci.

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“…The author used the electrolyte for application in electrochemical energy storage devices. Dey et al [12] fabricated polyethylene oxide (PEO)/potassium iodide (KI) PEs. The authors showed the effect of the filler of nanosized ceria (CeO 2~1 0 nm) on ionic conductivity in the PE of PEO/KI.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of a Plasticized PVA-Based Polymer Electrolyte Membrane and H+ Conductor for an Electrical Double-Layer Capacitor: Structural, Morphological, and Ion Transport Properties

et al. 2021

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Poly (vinyl alcohol) (PVA)-based solid polymer electrolytes doped with ammonium thiocyanate (NH4SCN) and glycerol were fabricated using a solution casting method. Lithium-based energy storage devices are not environmentally friendly materials, and they are toxic. Thus, proton-conducting materials were used in this work as they are harmless and are smaller than lithium. The interaction between PVA and the electrolyte elements was shown by FTIR analysis. The highest conductivity of 1.82 × 10−5 S cm−1 was obtained by the highest-conducting plasticized system (PSP_2) at room temperature. The mobility, diffusion coefficient, and number density of anions and cations were found to increase with increasing glycerol. FESEM was used to investigate the influence of glycerol on film morphology. TNM showed that the cations and anions were the main charge carriers. LSV showed that the electrochemical stability window of the PSP_2 system was 1.99 V. The PSP_2 system was applied in the preparation of an electrical double layer capacitor device. The shape of the cyclic voltammetry (CV) curve was nearly rectangular with no Faradaic peaks. From the galvanostatic charge-discharge analysis, the power density, energy density, and specific capacitance values were nearly constant beyond the first cycle at 318.73 W/Kg, 2.06 Wh/Kg, and 18.30 F g−1, respectively, for 450 cycles.

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“…An important reason for the low ionic conductivity is that the presence of crystalline phase. It is usually the dominant phase in the PEO which hinders lithium ion transportation whereas high ionic conductivity is often associated with high temperatures amorphous phase [7]. Typically, several methods have been used to resolve these problems such as the addition of micro-or nano-scale fillers (Al 2 O 3 , SiO 2 and TiO 2 ) [8], the addition of plasticizers (EC and PC) [5], [9], the implementation of uniaxial stresses, and the using of different kinds and volume of lithium salts.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Addition of LiCF3SO3 Salt on the Conductivity, Thermal and Mechanical Properties of PEO-LiCF3SO3 Solid Polymer Electrolyte

Klongkan¹,

Pumchusak²

2015

IJCEA

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Abstract-Solid polymer electrolyte for lithium ion batteries consisting of polyethylene oxide (PEO) and lithium trifluoromethanesulfonate (LiCF 3 SO 3 ) was prepared by a ball milling method followed by a hot pressing process. Various contents of Li salts (5, 10, 15 and 20 wt %) were studied. The samples were investigated for crystallinity and glass transition temperature by DSC and ionic conductivity was measured by the impedance. XRD patterns confirmed the degree of crystallinity of solid polymer electrolyte. The mechanical property was measured by tensile testing machine. It was found that the PEO composite that composed of 15 wt% of LiCF 3 SO 3 exhibited the highest conductivity at room temperature as 1.00 × 10 -6 Scm -1 , whereas the glass transition temperature (T g ), the melting temperature (T m ) and the degree of crystallinity decreased with the increasing of Li salt content.Index Terms-Lithium salt, polyethylene oxide, solid polymer electrolyte.

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Structure, morphology and ionic conductivity of solid polymer electrolyte

Cited by 37 publications

References 31 publications

Effect of the gel polymer electrolyte conductivity on the performance of Zn rechargeable cells

Effect of the gel polymer electrolyte conductivity on the performance of Zn rechargeable cells

Characteristics of a Plasticized PVA-Based Polymer Electrolyte Membrane and H+ Conductor for an Electrical Double-Layer Capacitor: Structural, Morphological, and Ion Transport Properties

Effects of the Addition of LiCF3SO3 Salt on the Conductivity, Thermal and Mechanical Properties of PEO-LiCF3SO3 Solid Polymer Electrolyte

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