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.

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.

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.

scholarly journals Conductivity and structural studies of PVA based mixed-ion composite polymer electrolytes

2018 ◽  
Vol 7 (2) ◽  
pp. 887 ◽  
Author(s):  
Sandeep Srivastava ◽  
Pradeep K. Varshney
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Sodium Perchlorate ◽  
Conductivity Measurement ◽  
Lithium Perchlorate ◽  
Poly Vinyl Alcohol ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
Casting Technique ◽  
Solution Casting Technique

The solid membranes having different ratios of poly-vinyl alcohol (PVA), sodium perchlorate (NaClO4) and lithium perchlorate (LiClO4) were prepared using solution casting technique. The mixed-ion composite polymer electrolytes were characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR) and conductivity measurement investigations. The XRD study confirms the amorphous nature of the mixed-ion composite polymer electrolytes. FTIR analysis has been used to characterize the structure of polymer which confirms the polymer and salt complex formation. The temperature dependent nature of ionic conductivity of the mixed-ion composite polymer electrolytes was determined by using conductivity meter (EC-035WP ERMA Inc, made in Japan). The ionic conductivity of the electrolyte was found in the range of 10-3 - 10-4 S/cm at room temperature.  

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...

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.

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.

scholarly journals Hybrid composite polymer electrolytes: ionic liquids as a magic bullet for the poly(ethylene glycol)–silica network

2017 ◽  
Vol 5 (7) ◽  
pp. 3493-3502 ◽  
Author(s):  
Tyler Blensdorf ◽  
Anisha Joenathan ◽  
Marcus Hunt ◽  
Ulrike Werner-Zwanziger ◽  
Barry D. Stein ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Polymer Electrolytes ◽  
Hybrid Composite ◽  
Magic Bullet ◽  
Composite Polymer ◽  
Poly Ethylene Glycol ◽  
Silica Network ◽  
Composite Polymer Electrolytes ◽  
Poly Ethylene

Ionic liquids bolster the conductivity of hybrid composite polymer electrolytes based on poly(ethylene glycols) and organic–inorganic silica nanoparticles formed in situ.

Novel composite polymer electrolytes containing poly(ethylene glycol)-grafted graphene oxide for all-solid-state lithium-ion battery applications

2014 ◽  
Vol 2 (34) ◽  
pp. 13873-13883 ◽  
Author(s):  
Jimin Shim ◽  
Dong-Gyun Kim ◽  
Hee Joong Kim ◽  
Jin Hong Lee ◽  
Ji-Hoon Baik ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solid State ◽  
Ethylene Glycol ◽  
Lithium Ion Battery ◽  
Polymer Electrolytes ◽  
Lithium Ion ◽  
Composite Polymer ◽  
Poly Ethylene Glycol ◽  
Composite Polymer Electrolytes ◽  
Poly Ethylene

A series of composite polymer electrolytes containing poly(ethylene glycol)-grafted graphene oxide fillers were prepared for all-solid-state lithium-ion battery applications.

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