Dielectric properties of lithium-perchlorate-filled acrylonitrile-hexyl methacrylate copolymer films

2015 ◽  
Vol 38 (9) ◽  
pp. 1792-1799
Author(s):  
Meryem Cicek ◽  
Elif Vargun ◽  
Ufuk Abaci ◽  
H. Yuksel Guney
Keyword(s):  
Dielectric Properties ◽  
Lithium Perchlorate ◽  
Copolymer Films ◽  
Hexyl Methacrylate ◽  
Methacrylate Copolymer

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 Wettability of Methacrylate Copolymer Films Deposited on Anodically Oxidized and Roughened Aluminium Surfaces

2009 ◽  
Vol 23 (3) ◽  
pp. 469-482 ◽  
Author(s):  
Ralf Frenzel ◽  
Christa Blank ◽  
Karina Grundke ◽  
Veneta Hein ◽  
Bernd Schmidt ◽  
...  
Keyword(s):  
Copolymer Films ◽  
Methacrylate Copolymer

scholarly journals Electrodeposited Copolymer Films with Tunable Conductivity

Electrochem ◽  
2020 ◽  
Vol 1 (4) ◽  
pp. 358-366
Author(s):  
Claire Magnenet ◽  
Emmanuel Contal ◽  
Sophie Lakard ◽  
Sandrine Monney ◽  
Boris Lakard
Keyword(s):  
Thin Films ◽  
Electrochemical Oxidation ◽  
Gas Sensors ◽  
Lithium Perchlorate ◽  
Granular Structure ◽  
Sensitive Material ◽  
Copolymer Films

Conducting copolymer films were prepared from pyrrole (Py) and 1,12-di-(1-pyrrolyl) dodecane (DiPy) in an attempt to prepare conducting films that can be used as sensitive material of chemiresistor gas sensors. Copolymer thin films were obtained by electrochemical oxidation in a lithium perchlorate/acetonitrile electrolyte with different feed ratios of comonomers. Increasing the portion of DiPy in the comonomer mixture resulted in the formation of thinner and less rough copolymer films and to a modification of their morphology from a granular structure to a clover-like structure. In addition, copolymer films with very different conductivities were obtained by varying the comonomers ratio. Indeed, the conductivity of the copolymer containing 91% of Py was 2 × 105 times higher than the conductivity of the polymer containing 91% of DiPy, indicating that it is possible to tune the conductivity of the film by varying the composition of the initial comonomer mixture.

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