Viscoelastic Properties, Ionic Conductivity, and Materials Design Considerations for Poly(styrene-b-ethylene oxide-b-styrene)-Based Ion Gel Electrolytes

2011 ◽  
Vol 44 (22) ◽  
pp. 8981-8989 ◽  
Author(s):  
Sipei Zhang ◽  
Keun Hyung Lee ◽  
Jingru Sun ◽  
C. Daniel Frisbie ◽  
Timothy P. Lodge
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Viscoelastic Properties ◽  
Materials Design ◽  
Design Considerations ◽  
Gel Electrolytes ◽  
Ion Gel

scholarly journals Performance-tuning of PVA-based gel electrolytes by acid/PVA ratio and PVA molecular weight

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Saeideh Alipoori ◽  
M. M. Torkzadeh ◽  
Saeedeh Mazinani ◽  
Seyed Hamed Aboutalebi ◽  
Farhad Sharif
Keyword(s):  
Molecular Weight ◽  
Ionic Conductivity ◽  
Charge Carrier Concentration ◽  
Fine Tuning ◽  
Performance Tuning ◽  
Practical Applications ◽  
High Performing ◽  
Flexible Devices ◽  
Gel Electrolytes ◽  
Ion Conducting

AbstractThe significant breakthroughs of flexible gel electrolytes have attracted extensive attention in modern wearable electronic gadgets. The lack of all-around high-performing gels limits the advantages of such devices for practical applications. To this end, developing a multi-functional gel architecture with superior ionic conductivity while enjoying good mechanical flexibility is a bottleneck to overcome. Herein, an architecturally engineered gel, based on PVA and H3PO4 with different molecular weights of PVA for various PVA/H3PO4 ratios, was developed. The results show the dependence of ionic conductivity on molecular weight and also charge carrier concentration. Consequently, fine-tuning of PVA-based gels through a simple yet systematic and well-regulated strategy to achieve highly ion-conducting gels, with the highest ionic conductivity of 14.75 ± 1.39 mS cm-1 have been made to fulfill the requirement of flexible devices. More importantly, gel electrolytes possess good mechanical robustness while exhibiting high-elasticity (%766.66 ± 59.73), making it an appropriate candidate for flexible devices.

Cross-linked polymeric ionic liquids ion gel electrolytes by in situ radical polymerization

2019 ◽  
Vol 378 ◽  
pp. 122245 ◽  
Author(s):  
Liya Chen ◽  
Jifang Fu ◽  
Qi Lu ◽  
Liyi Shi ◽  
Mengmeng Li ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Radical Polymerization ◽  
Polymeric Ionic Liquids ◽  
Gel Electrolytes ◽  
Ion Gel

CONDUCTIVITY AND DIELECTRIC BEHAVIOR OF PLiAMPS-BASED SEMI-IPN SINGLE ION CONDUCTOR PLASTICIZED WITH POLY(SILOXANE-G-ETHYLENE OXIDE)

2012 ◽  
Vol 02 (03) ◽  
pp. 1250017
Author(s):  
WEIWEI CUI ◽  
DONGYAN TANG
Keyword(s):  
Dielectric Constant ◽  
Ionic Conductivity ◽  
Ethylene Oxide ◽  
Polymer Network ◽  
Dielectric Behavior ◽  
Interpenetrating Polymer Network ◽  
Segmental Mobility ◽  
Ion Conductor ◽  
Conductivity Variation ◽  
The Impact

Comb poly(siloxane-g-ethylene oxide) (PSi-PE) with high chain segmental mobility, as a plasticizer, was introduced into poly(lithium 2-acrylamido-2-methyl-1-propanesulfonate) (PLiAMPS)-based semi-interpenetrating polymer network single-ion conductors. The structures of PSi-PE and PLiAMPS were characterized by FTIR spectroscopy. The distribution of PSi-PE in polyelectrolyte matrix was investigated through observing the residual surface morphology of conductor membrane after being etched by toluene. AC impedance and dielectric behavior measurements were used to investigate the impact of PSi-PE on the ionic conductivity and to analyze the mechanism of conductivity variation. Compared with the unplasticized membranes, the ionic conductivity of the membrane with the addition of 35 wt.% PSi-PE was improved by 20 times. Meanwhile, the dielectric constant (ε) of the membrane was increased to 1330 and the relaxation time was decreased to 0.012 s. The changes of dielectric properties reflect directly the effect of PSi-PE on the dissociation ability of Li+ and the chain segmental mobility, which well explains the reasons of ionic conductivity variation.

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