What Can We Learn from Ionic Conductivity Measurements in Polymer Electrolytes? A Case Study on Poly(ethylene oxide) (PEO)–NaI and PEO–LiTFSI

2012 ◽  
Vol 116 (10) ◽  
pp. 3065-3074 ◽  
Author(s):  
Nicolaas A. Stolwijk ◽  
Manfred Wiencierz ◽  
Christian Heddier ◽  
Johannes Kösters
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Polymer Electrolytes ◽  
Conductivity Measurements ◽  
Poly Ethylene Oxide ◽  
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

Ionic conductivity in polyethylene-b-poly(ethylene oxide)/lithium perchlorate solid polymer electrolytes

2007 ◽  
Vol 53 (4) ◽  
pp. 1503-1511 ◽  
Author(s):  
L.A. Guilherme ◽  
R.S. Borges ◽  
E. Mara S. Moraes ◽  
G. Goulart Silva ◽  
M.A. Pimenta ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Polymer Electrolytes ◽  
Lithium Perchlorate ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Effects of LiClO4 on the Characteristics and Ionic Conductivity of the Solid Polymer Electrolytes Composed of PEO, LiClO4 and PLiAA

2013 ◽  
Vol 743-744 ◽  
pp. 53-58 ◽  
Author(s):  
Rui Yang ◽  
Shi Chao Zhang ◽  
Lan Zhang ◽  
Xiao Fang Bi
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Polymer Electrolytes ◽  
Electrochemical Stability ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Poly Ethylene Oxide ◽  
Electrochemical Stability Window ◽  
Poly Ethylene

Solid polymer electrolytes (SPEs) which were composed of poly (ethylene oxide) (PEO), poly (lithium acrylate) (PLiAA), and LiClO4were prepared in order to investigate the influence of LiClO4content on the ionic conductivity of the electrolyte. All of the membranes were investigated by XRD, DSC, and EIS, et.al. The dependence of SPEs conductivity on temperature was measured, and the maximum ionic conductivity is 5.88×10-6S/cm at 293 K for membrane which is composed of PEO+PLiAA+15wt% LiClO4. The electrochemical stability window of the PEO+PLiAA+15wt% LiClO4is 4.75 V verse Li.

Preparation and Characterization of Polymer Electrolyte Based on Comb-Shaped Poly(oxyethylene) with Ether Side Chains

2012 ◽  
Vol 519 ◽  
pp. 14-19
Author(s):  
Lian Bai ◽  
Ming Li ◽  
Ce Wen Nan
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Chemical Modification ◽  
Polymer Matrix ◽  
Polymer Electrolytes ◽  
Side Chains ◽  
Order Of Magnitude ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

A kind of comb-shaped poly(oxyethylene) with nine oxyethylene units in ether side chains has been synthesized via chemical modification on ethylene oxide-epichlorohydrin copolymer [P(EO/EH)s] with a kind of alcohol ether carboxylate. The prepared polyether was characterized by FTIR spectroscopy. A series of polymer electrolytes were prepared by dissolving LiN(SO2CF3)2 at different ratios in the polymer matrix. It is found that the ionic conductivity of the comb-shaped poly(oxyethylene) based polymer electrolytes could reach 4.3×10-5 S/cm at 30°C and 6.2×10-4 S/cm at 80°C, which increase by an order of magnitude compared with that of poly(ethylene oxide) (PEO) based ones at corresponding temperatures. Both the amorphous feature of the polymer electrolytes above the ambient temperature and the highly mobile ether side chains of the comb-shaped polyether contribute to the increase of ionic conductivity.

Effect of nanostructured Al2O3 on poly(ethylene oxide)-based solid polymer electrolytes

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Patrick Walke ◽  
Anna Kirchberger ◽  
Felix Reiter ◽  
Daniel Esken ◽  
Tom Nilges
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Standard Material ◽  
Poly Ethylene Oxide ◽  
Standard Composition ◽  
Ion Conducting ◽  
Poly Ethylene

Abstract In this study, we investigated the effect of nanostructured Al2O3 particles on Li ion conducting, poly(ethylene oxide) (PEO)-based membranes prepared by electrospinning, solution casting and hot pressing. Pure PEO:LiBF4 solid polymer electrolytes (SPEs) and also plasticizer containing membranes were investigated with various amounts of Al2O3. In a first step, the best-performing composition of pure PEO:LiBF4 concerning the resulting ionic conductivity was identified and used as a standard for further experiments. In the following, the influence of the preparation method, the nature of the Al2O3, and the type of the plasticizer additives on the thermal and electrochemical properties for this standard composition were investigated. The Al2O3 composition was varied between 1 and 5 wt%. The ionic conductivity of bare electrospun PEO:LiBF4 SPE standard material has been improved by a factor ten to 1.9 × 10−6 S cm−1 at T = 293 K when 5 wt% of Al2O3 is added. For solution-casted PEO:LiBF4 standard compositions 18:1 with an initial ionic conductivity of 6.7 × 10−8 S cm−1, the addition of 2 wt% Al2O3 increased the performance to 1.4 × 10−7 S cm−1, both at T = 293 K. If succinonitrile and Al2O3 was admixed to the solution casted standard material, the ionic conductivity was further increased to reach 5.5 × 10−5 S cm−1 at T = 293 K. This material with a composition of 18:3:1 + 2 wt% Al2O3, outperforms the standard material by three orders of magnitude.

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