scholarly journals Ionic conductivity optimization of composite polymer electrolytes through filler particle chemical modification

Ionics ◽  
2021 ◽  
Author(s):  
Andres Villa ◽  
Juan Carlos Verduzco ◽  
Joseph A. Libera ◽  
Ernesto E. Marinero
Keyword(s):  
Ionic Conductivity ◽  
Chemical Modification ◽  
Polymer Electrolytes ◽  
Filler Particle ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes

Improving Ionic Conductivity with Bimodal-Sized Li7La3Zr2O12 Fillers for Composite Polymer Electrolytes

2019 ◽  
Vol 11 (13) ◽  
pp. 12467-12475 ◽  
Author(s):  
Yan Sun ◽  
Xiaowen Zhan ◽  
Jiazhi Hu ◽  
Yikai Wang ◽  
Shuang Gao ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes

Monte Carlo simulation of ionic conductivity in polyethylene oxide

2013 ◽  
Vol 33 (8) ◽  
pp. 713-719 ◽  
Author(s):  
Pei Ling Cheang ◽  
Yee Ling Yap ◽  
Lay Lian Teo ◽  
Eng Kiong Wong ◽  
Ah Heng You ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Ionic Conductivity ◽  
Polyethylene Oxide ◽  
Polymer Electrolytes ◽  
Electrochemical Impedance ◽  
Transference Number ◽  
Transference Numbers ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
Steady State Current

Abstract A Monte Carlo (MC) model to incorporate the effect of Al2O3 with different particle sizes in enhancing the ionic conductivity of composite polymer electrolytes consisting of polyethylene oxide (PEO), lithium trifluoromethanesulfonate (LiCF3SO3), and ethylene carbonate (EC), is proposed. The simulated ionic conductivity in our MC model is validated by the results of electrochemical impedance spectroscopy, which determined the room temperature ionic conductivity of various composite electrolyte samples differing from the size of the Al2O3 prepared via the solution cast method. With the simulated current density and recurrence relation, cation transference numbers, t+si of composite polymer electrolytes were derived using the steady-state current method proposed by Bruce et al. Addition of Al2O3 (≤10 μm) in micron size greatly enhances the ionic conductivity to a magnitude of two orders, i.e., from 2.9025×10-7 S/cm to 2.970×10-5 S/cm and doubles the cation transference number from 0.230 to 0.465. However, the addition of Al2O3 (<50 nm) in nano size decreases both the ionic conductivity and the cation transference number. The smaller size of Al2O3 in the nano range is responsible for the congestion on the conducting pathways that traps some of the Li+ in PEO electrolytes.

Preparation and ionic conductivity of composite polymer electrolytes based on hyperbranched star polymer

Ionics ◽  
2014 ◽  
Vol 20 (9) ◽  
pp. 1225-1234 ◽  
Author(s):  
Shitong Ren ◽  
Tao Zheng ◽  
Qian Zhou ◽  
Liaoyun Zhang ◽  
Huayi Li
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Star Polymer ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
Hyperbranched Star Polymer

Effect of Iron Oxide on Ionic Conductivity of Polyindole Based Composite Polymer Electrolytes

2012 ◽  
Vol 584 ◽  
pp. 536-540 ◽  
Author(s):  
G. Rajasudha ◽  
V. Narayanan ◽  
A. Stephen
Keyword(s):  
Iron Oxide ◽  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Polymer Electrolytes ◽  
Complex Impedance ◽  
Composite Polymer Electrolyte ◽  
Segmental Motion ◽  
Potential Candidate ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes

Composite polymer electrolytes (CPE) have recently received a great attention due to their potential application in solid state batteries. A novel polyindole based Fe2O3 dispersed CPE containing lithium perchlorate has been prepared by sol-gel method. The crystallinity, morphology and ionic conductivity of composite polymer electrolyte were examined by XRD, scanning electron microscopy, and impedance spectroscopy, respectively. The XRD data reveals that the intensity of the Fe2O3 has decreased when the concentration of the polymer is increased in the composite. This composite polymer electrolyte showed a linear relationship between the ionic conductivity and the reciprocal of the temperature, indicative of the system decoupled from the segmental motion of the polymer. Thus Polyindole-Iron oxide composite polymer electrolyte is a potential candidate for lithium ion electrolyte batteries. The complex impedance data for this has been analyzed in different formalisms such as permittivity (ε) and electric modulus (M). The value of ε' for CPE decreases with frequency, which is a normal dielectric behavior in polymer nanocomposite.

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