A Study on the Electrochemical Properties of PEO-Carbon Composite Polymer Electrolytes for Lithium/Sulfur Battery

2007 ◽  
Vol 544-545 ◽  
pp. 945-948 ◽  
Author(s):  
Young Jin Choi ◽  
Sung Hyun Kim ◽  
Sang Choul Park ◽  
Dong Hyun Shin ◽  
Dong Hun Kim ◽  
...  
Keyword(s):  
High Surface ◽  
High Surface Area ◽  
Ionic Conductivities ◽  
Carbon Composite ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
Initial Discharge ◽  
Sulfur Battery ◽  
Discharge Capacities

In this study, we investigated ionic conductivities of the electrolytes and cycle performances of Li/S cells using the electrolyte. (PEO)10LiCF3SO3 composite polymer electrolyte(CPE) containing carbon powders and Brij dispersant was prepared by ball milling for 12hr. The 5wt% carbon powders having high surface area (~ 80 m2/g) was added into the (PEO)10LiCF3SO3 electrolyte. To get a well-dispersed structure, Brij dispersant was also added into the (PEO)10LiCF3SO3-5wt%Carbon electrolyte. Li/CPEs/50wt%S cells showed initial discharge capacities of between 1,250 and 1,413 mAh/g-sulfur with current density of 100 mA/g-sulfur at 80 °C. These results led us to conclude that the dispersants added into the CPE improved the initial discharge capacities and cycle performances.

Enhanced Ion Transport Behaviors in Composite Polymer Electrolyte: the Case of Looser Chain Folding Structure

2022 ◽  
Author(s):  
Dexuan Pei ◽  
Rui Ma ◽  
Gang Yang ◽  
Yuhang Li ◽  
Can Huang ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
High Energy ◽  
High Energy Density ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
Solid State Batteries ◽  
Folding Structure ◽  
All Solid State Batteries ◽  
Significant Attention

All-solid-state batteries based on composite polymer electrolytes (CPEs) have drawn significant attention due to their high energy density, security and flexibility. Usually, the improvement of electrochemical performance of CPEs is...

Synthesis of PVDF-co-HFP-ZrO2 Based Composite Polymer Electrolyte for Battery Applications

2014 ◽  
Vol 938 ◽  
pp. 275-279 ◽  
Author(s):  
M. Johnsi ◽  
S. Austin Suthanthiraraj
Keyword(s):  
Polymer Electrolyte ◽  
Degree Of Crystallinity ◽  
Composite Polymer Electrolyte ◽  
Differential Scanning Calorimetric ◽  
Composite Polymer ◽  
Calorimetric Analysis ◽  
Composite Polymer Electrolytes ◽  
Casting Technique ◽  
Infrared Spectral ◽  
Solution Casting Technique

Composite polymer electrolytes based on poly (vinilydene fluoride-co-hexafluoro propylene) as polymer host, zinc triflate as dopant salt and ZrO2 as nanofiller were prepared by solution casting technique using N,N dimethylformamide (DMF) as solvent. The loading of the ZrO2 nanofiller carried out for the optimized composition shows an increasing trend of electrical conductivity from 10-11 to 10-5 Scm-1 at 298 K. The effective structural complexation of the polymer electrolyte system and influence of nanofiller were also analyzed by means of Fourier transform infrared spectral analysis. The detailed impacts on the degree of crystallinity were investigated by differential scanning calorimetric analysis. The electrochemical stability of the optimized composition with 7 wt% ZrO2 loading was found to exist up to 2.6 V.

Boosting Deionization Capability by Effectively Improving Sodium-ion Storage Capacity Based on Robust Interfacial Electronic Interaction within 3D Na4Ti9O20/N-doped Porous Carbon Heterostructures

2021 ◽  
Author(s):  
Yingying Zhang ◽  
Kun Yang ◽  
Haibiao Yu ◽  
Weijun Shan ◽  
Zhenning Lou ◽  
...  
Keyword(s):  
Hydrothermal Reaction ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Composite ◽  
Electronic Interaction ◽  
Capacitive Deionization ◽  
Ion Storage ◽  
Carbon Composite Materials ◽  
Sodium Ion Storage ◽  
Hydrothermal Reaction Time

A novel preparative approach for hopeful cathode materials of capacitive deionization (CDI) is proposed. Several 3D Na4Ti9O20/N-doped carbon composite materials (NTO/N-C-x, x represents hydrothermal reaction time) with high surface area...

High performance composite polymer electrolytes for lithium-ion polymer cells composed of a graphite negative electrode and LiFePO4 positive electrode

RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18359-18366 ◽  
Author(s):  
Yoon-Sung Lee ◽  
Won-Kyung Shin ◽  
Jung Soo Kim ◽  
Dong-Won Kim
Keyword(s):  
Polymer Electrolytes ◽  
High Performance ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Composite Polymer Electrolyte ◽  
Core Shell ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
High Performance Composite

A lithium-ion polymer cell assembled with a composite polymer electrolyte containing optimized core–shell SiO2 particles exhibited good cycling performance.

Hexanoyl Chitosan-Polystyrene Blend Based Composite Polymer Electrolyte with Surface Treated TiO2 Fillers

2013 ◽  
Vol 594-595 ◽  
pp. 656-660
Author(s):  
Tan Winie ◽  
Asheila Jamal ◽  
Nur Shazlinda Muhammad Hanif ◽  
N.S.M. Shahril
Keyword(s):  
Polymer Electrolytes ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
X Ray Diffraction ◽  
Composite Polymer Electrolytes ◽  
X Ray ◽  
Casting Technique ◽  
Hexanoyl Chitosan ◽  
Solution Casting Technique ◽  
Increasing Temperature

Composite polymer electrolytes (CPEs) comprised of hexanoyl chitosan-polystyrene-LiCF3SO3-TiO2 were prepared by solution casting technique. The TiO2 fillers were treated with 4% sulphuric acid (H2SO4) aqueous solution. The effect of treated TiO2 on the structural and electrical behaviour of the prepared electrolyte systems was investigated by X-ray diffraction (XRD) and impedance spectroscopy, respectively. Addition of TiO2 decreases the crystallinity of the electrolytes. Ac conductivity was calculated from σ(ω) = εoεrωtanδ. It is found that at all frequencies, σ(ω) increases with increasing temperature. Dielectric constant decreases with increasing frequency and increases with increasing temperature.

scholarly journals Investigation of XRD and Transport Properties of (PEO+KNO3+Nano Al2O3) Composite Polymer Electrolyte

2018 ◽  
Vol 15 (1) ◽  
pp. 23-27
Author(s):  
V. Madhusudhana Reddy ◽  
N. Kundana ◽  
T. Sreekanth
Keyword(s):  
Polymer Electrolytes ◽  
Al2o3 Particle ◽  
Transference Numbers ◽  
Composite Polymer Electrolyte ◽  
Mixed Solution ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
Casting Technique ◽  
Solution Casting Technique ◽  
Poly Ethylene

(PEO+KNO3+Nano Al2O3) based Composite Polymer Electrolytes (CPE) has been prepared by using solution casting technique. In this technique, Poly (ethylene oxide) (PEO) and KNO3salt were dissolved separately in methanol and they were mixed together. Nano alumina (Al2O3) (particle size ~10nm) was doped to mixed solution and stirred for 24hrs. X-ray diffraction (XRD) technique has been obtained to determine complexation of salt and polymer in composite polymer electrolytes. Ionic and electronic transference numbers of these composite polymer electrolytes has been calculated by using Wagner’s polarization technique. The DC Conductivity of these composite polymer electrolytes has been evaluated in the temperature range of 303-373 K.

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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