CONDUCTIVITY AND DIELECTRIC STUDIES OF PURE AND DOPED POLY (ETHYLENE OXIDE) (PEO) SOLID POLYMER ELECTROLYTE FILMS

2015 ◽  
Vol 76 (3) ◽  
Author(s):  
Mohd Noor Zairi Mohd Sapri ◽  
Azizah Hanom Ahmad
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Polymer Electrolyte ◽  
Salt Concentration ◽  
Solid Polymer Electrolyte ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Electrode Polarization ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

The solid polymer electrolytes (SPEs) composed of Poly (ethylene oxide) (PEO) with sodium trifluoromethanesulfonate (NaCF3SO3) salt has been prepared by solution casting technique. The conductivity and dielectric of the solid polymer electrolyte systems were studied within the broad frequency range of 50 Hz–1 MHz and within a temperature range of 30 ˚C to 100 ˚C. The samples were prepared by various salt concentrations ranging from 2 wt% to 22 wt%. The sample containing 18 wt% of NaCF3SO3 salt exhibit the highest ionic conductivity of 1.091 x 10-5 Scm-1 at 30 ˚C. The conductivity of the SPEs has been found to depend on the salt concentration that was added to the sample. When higher salt concentration was added, ionic conductivity decreased due to the association of ions. The temperature of conductivity from 30 ˚C to 100 ˚C of SPEs was found to obey the Arrhenius rule. The dielectric permittivity decreased rapidly towards high frequencies due to the electrode polarization effects. 

UV-cross-linked poly(ethylene oxide carbonate) as free standing solid polymer electrolyte for lithium batteries

2019 ◽  
Vol 302 ◽  
pp. 414-421 ◽  
Author(s):  
Leire Meabe ◽  
Tan Vu Huynh ◽  
Daniele Mantione ◽  
Luca Porcarelli ◽  
Chunmei Li ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Polymer Electrolyte ◽  
Lithium Batteries ◽  
Solid Polymer Electrolyte ◽  
Solid Polymer ◽  
Free Standing ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Single‐Ion Conducting Poly(Ethylene Oxide Carbonate) as Solid Polymer Electrolyte for Lithium Batteries

2019 ◽  
Vol 3 (1) ◽  
pp. 68-75 ◽  
Author(s):  
Leire Meabe ◽  
Nicolas Goujon ◽  
Chunmei Li ◽  
Michel Armand ◽  
Maria Forsyth ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Polymer Electrolyte ◽  
Lithium Batteries ◽  
Solid Polymer Electrolyte ◽  
Solid Polymer ◽  
Poly Ethylene Oxide ◽  
Ion Conducting ◽  
Poly Ethylene

scholarly journals Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes

High Voltage ◽  
2017 ◽  
Vol 2 (1) ◽  
pp. 25-31 ◽  
Author(s):  
Jun‐Wei Zha ◽  
Na Huang ◽  
Kang‐Qiang He ◽  
Zhi‐Min Dang ◽  
Chang‐Yong Shi ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Ionic Conductivity of Hybrid Composite Solid Polymer Electrolytes of PEOnLiClO4-Cubic Li7La3Zr2O12 Films

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 2090
Author(s):  
Parisa Bashiri ◽  
T. Prasada Rao ◽  
Gholam-Abbas Nazri ◽  
Ratna Naik ◽  
Vaman M. Naik
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Hybrid Composite ◽  
Solid Polymer Electrolyte ◽  
Salt Content ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Electrode Polarization ◽  
Conductivity Data ◽  
Composite Solid

Ionic conductivity of the polyethylene oxide-LiClO4 (PEOnLiClO4) solid polymer electrolyte (SPE) films with an EO:Li ratio (n) of 10, 12, 15, as well as the hybrid composite solid polymer electrolyte (CSPE) films of PEOnLiClO4 containing 50 wt% of cubic-Li7La3Zr2O12 (LLZO) sub-micron sized particles, have been studied by varying Li-salt content in the films. The complex AC dielectric permittivity and conductivity data obtained from electrical impedance measurements were fitted using a generalized power-law, including the effects of electrode polarization applied at low AC frequencies to obtain various relaxation times. In addition to increased mechanical and thermal robustness, the CSPE films show higher values of ionic conductivity, >10−4 S/cm at room temperature compared to those of SPE films with n = 12 and 15. On the contrary, the ionic conductivity of CSPE with n = 10 decreases by a factor of three compared to the corresponding SPE film due to increased polymer structural reorientation and Li-ion pairing effects. The Vogel–Tammann–Fulcher behavior of the temperature-dependent conductivity data indicates a close correlation between the ionic conductivity and polymer segmental relaxation. The PEO12LiClO4-LLZO film shows the lowest activation energy of ~0.05 eV.

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