scholarly journals Corn starch doped with sodium iodate as solid polymer electrolytes for energy storage applications

2021 ◽  
Vol 61 (4) ◽  
pp. 497-503
Author(s):  
Fatin Farhana Awang ◽  
Mohd Faiz Hassan ◽  
Khadijah Hilmun Kamarudin
Keyword(s):  
Energy Storage ◽  
Corn Starch ◽  
Electrochemical Impedance ◽  
Amorphous State ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Sodium Iodate ◽  
Energy Storage Devices ◽  
Casting Technique ◽  
Energy Storage Applications

The concern about environmental problems has inspired a of energy storage devices from natural sources. In this study, solid polymer electrolyte (SPE) films made from corn starch doped with different compositions of sodium iodate (NaIO3) were prepared via the solution casting technique. The effect of dopants on the structure, morphology and electrical properties of SPE films was analysed using X-Ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS) analysis. From the XRD, it shows that the amorphous state would influence the conductivity values of SPE films. Then, the SEM observations revealed that the films seem to be rough, porous and having branch structure, which may affect the conductivity of SPE films. The maximum conductivity of SPE film is obtained from 3 wt.% of NaIO3 with a value of 1.08 × 10−4 Scm−1 at room temperature (303K). From the results, this SPE is proposed to have a great potential in future energy storage applications.

Role of Salt Concentration Lithium Perchlorate on Ionic Conductivity and Structural of (Glycidyl Methacrylate-co-Ethyl Methacrylate) (70/30) Based on a Solid Polymer Electrolyte

2012 ◽  
Vol 626 ◽  
pp. 454-458 ◽  
Author(s):  
M. Imperiyka ◽  
Azizan Ahmad ◽  
S.A. Hanifah ◽  
Mohd Yusri Abdul Rahman
Keyword(s):  
Glycidyl Methacrylate ◽  
Fourier Transforms ◽  
Electrochemical Impedance ◽  
Epoxy Group ◽  
Lithium Perchlorate ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Casting Technique ◽  
Ethyl Methacrylate ◽  
Solution Casting Technique

A new solid polymer electrolytes (SPE) comprising copolymer of poly(glycidyl methacrylate, GMA) and (ethyl methacrylate, EMA) as polymer host and LiClO4as dopant was prepared by solution-casting technique. The copolymer was prepared by photopolymerization method and was characterized using NMR. The SPEs were characterized using electrochemical impedance spectroscopy (EIS), fourier transforms infrared (FTIR) and X-ray diffraction (XRD). The highest conductivity achieved was 4.0x10-4at 373K with highest conductivity at room temperature (2.7x10ˉ5 S cm-1at 30 wt. % of LiClO4). The active coordination site for the cation (Li+), three electrons donating functional carbonyl, ether and epoxy group of the GMA-co-EMA host have been evaluated base on their properties that were recorded in (FTIR). The structural analysis showed reduction in copolymer crystallinity phases at its highest conductivity

scholarly journals Solvent Effect in Imidazole-Based Poly(Ionic Liquid) Membranes: Energy Storage and Sensing

Polymers ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 3466
Author(s):  
Arko Kesküla ◽  
Anna-Liisa Peikolainen ◽  
Paul A. Kilmartin ◽  
Rudolf Kiefer
Keyword(s):  
Energy Storage ◽  
Aqueous Electrolyte ◽  
Electrochemical Impedance ◽  
Ion Conductivity ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Resonance Spectroscopy ◽  
Sustainable Technologies ◽  
Sensor Properties ◽  
Poly Ionic Liquid

Polymerized ionic liquids (PILs) are interesting new materials in sustainable technologies for energy storage and for gas sensor devices, and they provide high ion conductivity as solid polymer electrolytes in batteries. We introduce here the effect of polar protic (aqueous) and polar aprotic (propylene carbonate, PC) electrolytes, with the same concentration of lithium bis(trifluoromethane) sulfonimide (LiTFSI) on hydrophobic PIL films. Cyclic voltammetry, scanning ionic conductance microscopy and square wave voltammetry were performed, revealing that the PIL films had better electroactivity in the aqueous electrolyte and three times higher ion conductivity was obtained from electrochemical impedance spectroscopy measurements. Their energy storage capability was investigated with chronopotentiometric measurements, and it revealed 1.6 times higher specific capacitance in the aqueous electrolyte as well as novel sensor properties regarding the applied solvents. The PIL films were characterized with scanning electron microscopy, energy dispersive X-ray, FTIR and solid state nuclear magnetic resonance spectroscopy.

A Review on PEO Based Solid Polymer Electrolytes (SPEs) Complexed with LiX (X=Tf, BOB) for Rechargeable Lithium Ion Batteries

2014 ◽  
Vol 807 ◽  
pp. 41-63 ◽  
Author(s):  
K. Karuppasamy ◽  
R. Antony ◽  
S. Alwin ◽  
S. Balakumar ◽  
X. Sahaya Shajan
Keyword(s):  
Energy Storage ◽  
Lithium Ion Battery ◽  
Polymer Electrolytes ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Research Progress ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Energy Technologies

Nanocomposite polymer electrolytes (NCPEs) have been playing a considerable role in the development of alternative clean and sustainable energy technologies. This review article summarizes the recent research progress on the synthesis and characterization of NCPEs and its application in lithium ion battery based energy storage devices. First, an introduction on the properties, synthesis strategies and use of NCPEs is briefly given, followed by a state-of-the-art review on the preparation of NCPEs and their electrochemical properties in lithium ion battery (LIB) applications. Finally, the prospects and future challenges of NCPEs for energy storage are discussed

Characterization of Plasticized PMMA-LiClO4 Solid Polymer Electrolytes

2012 ◽  
Vol 585 ◽  
pp. 185-189 ◽  
Author(s):  
Rajni Sharma ◽  
Anjan Sil ◽  
Subrata Ray
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Thermal Analyses ◽  
Impedance Analysis ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Casting Technique ◽  
Ac Impedance Analysis ◽  
Solution Casting Technique

In the present work, the effect of Li salt i.e. LiClO4 contained in composite plasticizer (PC+DEC) with three different concentrations on ionic transport and other electrochemical properties of PMMA based gel polymer electrolytes synthesized has been investigated. The electrolytes have been synthesized by solution casting technique by varying the wt (%) of salt and plasticizer. The formation of polymer-salt complexes and their structural characterization have been carried out by FTIR spectroscopic and XRD analyses. The room temperature ionic conductivity of the electrolyte composition 0.6PMMA-0.125(PC+DEC)-0.15LiClO4 (wt %) has been found to be maximum whose magnitude is 0.40×10-5 S/cm as determined by ac impedance analysis. The temperature dependent ionic conductivity of electrolyte sample0.6PMMA-0.125(PC+DEC)-0.15LiClO4 has further been investigated. Thermal analyses of electrolyte samples of all three compositions have also been done.

scholarly journals Salt Concentration Effect on Electrical and Dielectric Properties of Solid Polymer Electrolytes based Carboxymethyl Cellulose for Lithium-ion Batteries

2021 ◽  
Vol 12 (5) ◽  
pp. 6114-6123
Keyword(s):  
Dielectric Properties ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Carboxymethyl Cellulose ◽  
Electrochemical Impedance ◽  
Lithium Ion ◽  
Lithium Perchlorate ◽  
Linear Sweep Voltammetry ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

Solid polymer electrolytes (SPEs) based carboxymethyl cellulose (CMC) with lithium perchlorate (LiClO4) were prepared via solution drop-cast technique. The CMC host is complexed by different concentrations of LiClO4 salt. SPEs were characterized by Electrochemical Impedance Spectroscopy (EIS) and Linear Sweep Voltammetry (LSV) in coin cells with lithium metal electrodes. EIS performed unique results based on various ionic conductivity values and dielectric properties. The higher ionic conductivity (1.32 × 10-5 S/cm) was obtained by SPEs 2 following by short-range ionic transport results based on dielectric properties depending on frequency. SPEs with LiClO4 addition are electrochemically stable over 2 V in lithium battery coin cells from LSV results.

scholarly journals Tailoring the supercapacitive performances of noble metal oxides, porous carbons and their composites

2013 ◽  
Vol 78 (12) ◽  
pp. 2141-2164 ◽  
Author(s):  
Vladimir Panic ◽  
Aleksandar Dekanski ◽  
Branislav Nikolic
Keyword(s):  
Energy Storage ◽  
Metal Oxides ◽  
Noble Metal ◽  
Electrochemical Impedance ◽  
Depth Profiling ◽  
Thin Layers ◽  
Energy Storage Devices ◽  
Capacitive Energy Storage ◽  
Storage Devices ◽  
Noble Metal Oxides

Porous electrochemical supercapacitive materials, as an important type of new-generation energy storage devices, require a detailed analysis and knowledge of their capacitive performances upon different charging/discharging regimes. The investigation of the responses to dynamic perturbations of typical representatives, noble metal oxides, carbonaceous materials and RuO2-impregnated carbon blacks, by electrochemical impedance spectroscopy (EIS) is presented. This presentation follows a brief description of supercapacitive behavior and origin of pseudocapacitive response of noble metal oxides. For all investigated materials, the electrical charging/discharging equivalent of the EIS response was found to obey the transmission line model envisaged as so-called ?resistor/capacitor (RC) ladder?. The ladder features are correlated to material physicochemical properties, its composition and the composition of the electrolyte. Fitting of the EIS data of different supercapacitive materials to appropriate RC ladders enables the in-depth profiling of the capacitance and pore resistance of their porous thin-layers and finally the complete revelation of capacitive energy storage issues.

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