Dielectric properties of electrolyte solutions. Lithium perchlorate solutions in tetrahydrofuran + benzene mixtures

Author(s):  
Jean-Pierre Badiali ◽  
Hubert Cachet ◽  
Alain Cyrot ◽  
Jean-Claude Lestrade
2021 ◽  
Vol 12 (5) ◽  
pp. 6114-6123

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.


2015 ◽  
Vol 38 (9) ◽  
pp. 1792-1799
Author(s):  
Meryem Cicek ◽  
Elif Vargun ◽  
Ufuk Abaci ◽  
H. Yuksel Guney

1986 ◽  
Vol 15 (3) ◽  
pp. 259-268 ◽  
Author(s):  
Bo Gestblom ◽  
Johan Sj�blom

2011 ◽  
Vol 27 (1-3) ◽  
pp. 25-30 ◽  
Author(s):  
Miguel Montalvillo ◽  
Verónica Silva ◽  
Laura Palacio ◽  
Antonio Hernández ◽  
Pedro Prádanos

2017 ◽  
Vol 31 (23) ◽  
pp. 1750169
Author(s):  
Shaoshuai Guo ◽  
Yufeng Peng ◽  
Xueyun Han ◽  
Jiangting Li

In order to study the electromagnetic wave transmission characteristics in seawater under external physical effects, we present a study of seawater ionic solution and perform a theoretical basis of magnetic field on water molecules and ionic motion to investigate the variation of dielectric properties with frequency under static magnetic field (0.38 T). Seawater is a naturally multi-component electrolyte solution, the main ingredients in seawater are inorganic salts, such as NaCl, MgSO4, MgCl2, CaCl2, KCl, NaHCO3, etc. The dielectric properties of these electrolyte solutions with different salinity values (0.01–5%) were measured in frequencies ranging from 40 to 5 MHz at 12[Formula: see text]C. The results show that the dielectric constant decreases with increasing frequencies no matter with magnetic field or without it. Frequency dependence of the dielectric constant of NaCl solution increases under magnetic field at measure concentrations. In a solution of MgCl2 ⋅ 6H2O, KCl and NaHCO3 are consistent with NaCl solution, while CaCl2 ⋅ 2H2O solution is in contrast with it. We also find that dielectric loss plays a major role in complex permittivity. With the effect of magnetic field, the proportion of dielectric loss is reducing in complex permittivity. On this basis it was concluded that the magnetic field influences the orientation of dipoles and the variation is different in salt aqueous solution.


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