A novel gel polymer electrolyte based on Polymethylmethacrylate and Copper Trifluoromethanesulfonate

Jayathilake, Y.M.C.D.; Perera, K. S.; Vidanapathirana, K. P.; Bandara, L.R.A.K.

doi:10.1016/j.jelechem.2014.04.018

Cited by 14 publications

(10 citation statements)

References 21 publications

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“…It exhibits only a part of a semicircle. For a symmetric cell with two blocking electrodes, theoretically there should be two semicircles and a spike (Jayathilake et al, 2014). One semicircle is in the intermediate frequency region and the other one is in the high frequency region.…”

Section: Resultsmentioning

confidence: 99%

“…The spike is also absent in the resultant Nyquist plot and it may be also due to unavailability of required low frequency range. Bulk electrolyte resistance, R b was evaluated from the resultant impedance plot using nonlinear least square fitting program (Jayathilake et al, 2014). The equivalent circuit used is given in figure 02.…”

Section: Resultsmentioning

confidence: 99%

“…Number of redox capacitors based on liquid electrolytes can be found in literature, but those are associated with usual disadvantages such as corrosion, self discharge, low energy density, bulky design, leakage etc. (Hashmi et al, 1998;Hashmi et al, 2005) These issues can be skirted using gel polymer electrolytes (GPEs) which have been considered to use for various applications due to their merits of high ionic conductivity and good mechanical properties (Perera et al, 2007, Jayathilake et al, 2014. Therefore, development of solid state redox capacitors using GPEs is one of the current research areas of great interest (Hashmi et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Performance of A Sodium Thiocyanate Based Gel Polymer Electrolyte In Redox Capacitors

Bandaranayake¹,

Jayathilake²,

Vidanapathirana³

et al. 2015

Sabaragamuwa Univ J

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Solid state redox capacitors have received a tremendous interest in terms of several characteristics such as their fast energy delivery, short charging time, high power density and extended durability. Due to the absence of a liquid electrolyte, they are free from drawbacks of leakage and unsafe. In this study, preparation and characterization of a redox capacitor consisting with two identical polypyrrole (PPy): dodecylbenzenesulfonate (DBS) electrodes and a gel polymer electrolyte (GPE) based on polyvinylidene fluoride (PVdF), ethylene carbonate (EC), propylene carbonate (PC) and sodium thiocyanate (NaSCN) is reported. The GPE having the composition, 0.4 PVdF: 1 EC: 1 PC: 0.075 NaSCN (by weight) showed the maximum conductivity of 2.25× 10 -3 S cm -1 . Redox capacitors were characterized using Cyclic Voltammetry, Electrochemical Impedance Spectroscopy and Galvanostatic Charge Discharge test. They exhibited an energy density about 0.25 W h kg -1 and an average power density of 4 kW kg -1

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of A Sodium Thiocyanate Based Gel Polymer Electrolyte In Redox Capacitors

Bandaranayake¹,

Jayathilake²,

Vidanapathirana³

et al. 2015

Sabaragamuwa Univ J

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“…3 SO 3 ) 2 -ZnTF) (Aldrich), ethylene carbonate (EC) (Aldrich) and propylene carbonate (PC) (Aldrich) as previously reported by Jayathilake et al (2014).…”

Section: Methodsmentioning

confidence: 99%

Effect of polymerisation current density of electrodes on the performance of polypyrrole based redox-capacitor

Weerasinghe¹,

Vidanapathirana²,

Perera³

et al. 2017

J. Natn. Sci. Foundation Sri Lanka

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* Corresponding author ( ) economic solutions to the demand for power sources. Redoxcapacitors replace the role of batteries and conventional capacitors by hundred times of the power density and energy density. Research activities are being continued to fabricate more comprehensive supercapacitors. Among those, fabrication of the symmetric polymer capacitor is dominant because of its simplicity. In this study, the effect of polymerisation current density on the performance of a symmetric polymer redoxcapacitor is reported. Conducting polymer, polypyrrole (PPy) was used as the electrodes, while a gel polymer electrolyte as the electrolyte. Fabrication of the redox-capacitors was . They were characterised using cyclic voltammetry tests, continuous galvanostatic charge-discharge tests and electrochemical value of 12 Fg -1 could be obtained by cyclic voltammetry measurements. It was about 7 Fg -1 as per the galvanostatic stable upon continuous cycling. An increase was noticed in density. From the impedance spectroscopy measurements, it was observed that with increasing polymerisation current density, the capacitive nature of the redox-capacitors can be improved.Cyclic voltammetry, polypyrrole, redox-capacitor,

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“…Using a circular shape GPE film, DC polarization test was carried out for each sample at room temperature as per the procedure reported by us previously (Jayathilake et al, 2014). DC polarization test data in terms of current and time was plotted and the resulting graph was used to calculate the transference numbers.…”

Section: Characterization Of Gpe Samplesmentioning

confidence: 99%

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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A novel gel polymer electrolyte based on Polymethylmethacrylate and Copper Trifluoromethanesulfonate

Cited by 14 publications

References 21 publications

Performance of A Sodium Thiocyanate Based Gel Polymer Electrolyte In Redox Capacitors

Performance of A Sodium Thiocyanate Based Gel Polymer Electrolyte In Redox Capacitors

Effect of polymerisation current density of electrodes on the performance of polypyrrole based redox-capacitor

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

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