Effect of Iron Oxide on Ionic Conductivity of Polyindole Based 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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Increased Ion Conductivity in Composite Solid Electrolytes With Porous Co3O4 Cuboids

Frontiers in Materials ◽

10.3389/fmats.2021.697257 ◽

2021 ◽

Vol 8 ◽

Author(s):

Qiongyu Zhou ◽

Songli Liu ◽

Shiju Zhang ◽

Yong Che ◽

Li-Hua Gan

Keyword(s):

Solid State ◽

Ionic Conductivity ◽

Polymer Electrolyte ◽

Polymer Electrolytes ◽

Composite Polymer Electrolyte ◽

Composite Polymer ◽

Composite Electrolyte ◽

Base Interaction ◽

Solid State Batteries ◽

All Solid State Batteries

Compared with the fagile ceramic solid electrolyte, Li-ion conducting polymer electrolytes are flexible and have better contact with electrodes. However, the ionic conductivity of the polymer electrolytes is usually limited because of the slow segment motion of the polymer. In this work, we introduce porous Co3O4 cuboids to Poly (Ethylene Oxide)-based electrolyte (PEO) to investigate the influence of these cuboids on the ionic conductivity of the composite electrolyte and the performance of the all-solid-state batteries. The experiment results showed the porous cuboid Co3O4 fillers not only break the order motion of segments of the polymer to increase the amorphous phase amount, but also build Li+ continuous migration pathway along the Co3O4 surface by the Lewis acid-base interaction. The Li+ conductivity of the composite polymer electrolyte reaches 1.6 × 10−4 S cm−1 at 30°C. The good compatibility of the composite polymer electrolyte to Li metal anode and LiFePO4 cathode ensures good rate performance and long cycle life when applying in an all-solid-state LiFePO4 battery. This strategy points out the direction for developing the high-conducting composite polymer electrolytes for all-solid-state batteries.

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Influence of TiO2 as Filler on the Discharge Characteristics of a Proton Battery

Journal of New Materials for Electrochemical Systems ◽

10.14447/jnmes.v18i4.351 ◽

2015 ◽

Vol 18 (4) ◽

pp. 219-223 ◽

Cited By ~ 2

Author(s):

C. Ambika ◽

G. Hirankumar ◽

S. Thanikaikarasan ◽

K. K. Lee ◽

E. Valenzuela ◽

...

Keyword(s):

Polymer Electrolyte ◽

Polymer Blend ◽

Polymer Electrolytes ◽

Constant Current ◽

Composite Polymer Electrolyte ◽

Composite Polymer ◽

Composite Polymer Electrolytes ◽

Nano Composite ◽

Discharge Characteristics ◽

Proton Battery

Different concentrations of TiO2 dispersed nano-composite proton conducting polymer electrolyte membranes were prepared using solution casting technique. Fourier Transform Infrared Spectroscopic analysis was carried out to determine the vibrational investigations about the prepared membranes. Variation of conductivity due to the incorporation of TiO2 in polymer blend electrolyte was analyzed using Electrochemical Impedance Spectroscopy and the value of maximum conductivity is 2.8×10-5 Scm-1 for 1mol% of TiO2 dispersed in polymer electrolytes. Wagner polarization technique has been used to determine the value of charge transport number of the composite polymer electrolytes. The electrochemical stability window of the nano-composite polymer electrolyte was analyzed using Linear Sweep Voltammetry. Fabrication of Proton battery is carried out with configuration of Zn+ZnSO4.7H2O+AC ǁ Polymer electrolyte ǁ MnO2+AC. Discharge characteristics were investigated for polymer blend electrolytes and 1mol% TiO2 dispersed nano-composite polymer electrolytes at constant current drain of 10μA. There is evidence of enhanced performance for proton battery which was constructed using 1mol% TiO2 dispersed nano-composite polymer electrolytes compared to the blend polymer electrolytes.

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Li7La3Zr2O12 ceramic nanofiber-incorporated composite polymer electrolytes for lithium metal batteries

Journal of Materials Chemistry A ◽

10.1039/c8ta11449h ◽

2019 ◽

Vol 7 (7) ◽

pp. 3391-3398 ◽

Cited By ~ 42

Author(s):

Yang Li ◽

Wei Zhang ◽

Qianqian Dou ◽

Ka Wai Wong ◽

Ka Ming Ng

Keyword(s):

Polymer Electrolyte ◽

Polymer Electrolytes ◽

Composite Polymer Electrolyte ◽

Lithium Metal ◽

Composite Polymer ◽

Composite Polymer Electrolytes ◽

Lithium Metal Batteries

A composite polymer electrolyte (CPE) based on garnet Li7La3Zr2O12 (LLZO) nanofiber-incorporated PVDF-HFP is reported.

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

Journal of Materials Chemistry A ◽

10.1039/d1ta10669d ◽

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...

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Enhanced ionic conductivity of novel composite polymer electrolytes with Li1.3Al0.3Ti1.7(PO4)3 NASICON-type fast ion conductor powders

Solid State Ionics ◽

10.1016/j.ssi.2019.05.026 ◽

2019 ◽

Vol 338 ◽

pp. 138-143 ◽

Cited By ~ 7

Author(s):

Zhiyan Kou ◽

Chang Miao ◽

Zhiyan Wang ◽

Ping Mei ◽

Yan Zhang ◽

...

Keyword(s):

Ionic Conductivity ◽

Polymer Electrolytes ◽

Composite Polymer ◽

Composite Polymer Electrolytes ◽

Ion Conductor ◽

Nasicon Type ◽

Fast Ion Conductor ◽

Fast Ion

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.938.275 ◽

2014 ◽

Vol 938 ◽

pp. 275-279 ◽

Cited By ~ 1

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.

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