Ionic liquid-based sodium ion-conducting composite gel polymer electrolytes: effect of active and passive fillers

S. A. Hashmi; Md Yasir Bhat; Manoj K. Singh; N. T.Kalyana Sundaram; Bala P.C. Raghupathy; Hideaki Tanaka

doi:10.1007/s10008-016-3284-6

Ionic liquid-based sodium ion-conducting composite gel polymer electrolytes: effect of active and passive fillers

S. A. Hashmi^*, Md Yasir Bhat, Manoj K. Singh, N. T.Kalyana Sundaram, Bala P.C. Raghupathy, Hideaki Tanaka

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

We report the studies on composite gel polymer electrolytes (GPEs) comprising 0.5 M solution of sodium trifluoromethane sulfonate (Na-triflate or NaTf) in ionic liquid 1-ethyl 3-methyl imidazolium trifluoromethane sulfonate (EMITf) entrapped in poly (vinylidinefluoride-co-hexafluoropropylene) (PVdF-HFP) dispersed with passive filler Al₂O₃ and active filler NaAlO₂ particles. The free-standing films of the composite GPEs, prepared from solution-cast method, offer optimum ionic conductivity at room temperature (6.3–6.8 × 10⁻³ S cm⁻¹ and 5.5–6.5 × 10⁻³ S cm⁻¹ for Al₂O₃- and NaAlO₂-dispersed GPEs, respectively), with sufficient electrochemical stability and excellent thermal stability up to 340 °C. As observed from XRD and SEM, the composites are of predominantly amorphous and porous character, which support the high ionic conduction. The sodium ion transport number has been found to be ∼0.27 for Al₂O₃-dispersed GPE and 0.42 for NaAlO₂-dispersed GPE, which indicates the predominant role of passive and active fillers, Al₂O₃ and NaAlO₂, respectively. The dispersion of NaAlO₂ enhances the sodium ion conductivity in composite GPE substantially. The overall ionic conductivity is same as in the case of Al₂O₃ dispersion. The performance characteristics of GPE, particularly, dispersed with active filler NaAlO₂ show its potential applicability as electrolyte/separator in sodium batteries.

Original language	English
Pages (from-to)	2817-2826
Number of pages	10
Journal	Journal of Solid State Electrochemistry
Volume	20
Issue number	10
DOIs	https://doi.org/10.1007/s10008-016-3284-6
State	Published - 1 Oct 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016, Springer-Verlag Berlin Heidelberg.

Keywords

Composite materials
Electrochemical properties
Electrochemical techniques
Polymers
Thermogravimetric analysis (TGA)

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Energy Engineering and Power Technology
Electrochemistry
Electrical and Electronic Engineering
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s10008-016-3284-6

Cite this

@article{84651ca0233b44abb681153ae380a599,

title = "Ionic liquid-based sodium ion-conducting composite gel polymer electrolytes: effect of active and passive fillers",

abstract = "We report the studies on composite gel polymer electrolytes (GPEs) comprising 0.5 M solution of sodium trifluoromethane sulfonate (Na-triflate or NaTf) in ionic liquid 1-ethyl 3-methyl imidazolium trifluoromethane sulfonate (EMITf) entrapped in poly (vinylidinefluoride-co-hexafluoropropylene) (PVdF-HFP) dispersed with passive filler Al2O3 and active filler NaAlO2 particles. The free-standing films of the composite GPEs, prepared from solution-cast method, offer optimum ionic conductivity at room temperature (6.3–6.8 × 10−3 S cm−1 and 5.5–6.5 × 10−3 S cm−1 for Al2O3- and NaAlO2-dispersed GPEs, respectively), with sufficient electrochemical stability and excellent thermal stability up to 340 °C. As observed from XRD and SEM, the composites are of predominantly amorphous and porous character, which support the high ionic conduction. The sodium ion transport number has been found to be ∼0.27 for Al2O3-dispersed GPE and 0.42 for NaAlO2-dispersed GPE, which indicates the predominant role of passive and active fillers, Al2O3 and NaAlO2, respectively. The dispersion of NaAlO2 enhances the sodium ion conductivity in composite GPE substantially. The overall ionic conductivity is same as in the case of Al2O3 dispersion. The performance characteristics of GPE, particularly, dispersed with active filler NaAlO2 show its potential applicability as electrolyte/separator in sodium batteries.",

keywords = "Composite materials, Electrochemical properties, Electrochemical techniques, Polymers, Thermogravimetric analysis (TGA)",

author = "Hashmi, \{S. A.\} and Bhat, \{Md Yasir\} and Singh, \{Manoj K.\} and Sundaram, \{N. T.Kalyana\} and Raghupathy, \{Bala P.C.\} and Hideaki Tanaka",

note = "Publisher Copyright: {\textcopyright} 2016, Springer-Verlag Berlin Heidelberg.",

year = "2016",

month = oct,

day = "1",

doi = "10.1007/s10008-016-3284-6",

language = "English",

volume = "20",

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TY - JOUR

T1 - Ionic liquid-based sodium ion-conducting composite gel polymer electrolytes

T2 - effect of active and passive fillers

AU - Hashmi, S. A.

AU - Bhat, Md Yasir

AU - Singh, Manoj K.

AU - Sundaram, N. T.Kalyana

AU - Raghupathy, Bala P.C.

AU - Tanaka, Hideaki

PY - 2016/10/1

Y1 - 2016/10/1

N2 - We report the studies on composite gel polymer electrolytes (GPEs) comprising 0.5 M solution of sodium trifluoromethane sulfonate (Na-triflate or NaTf) in ionic liquid 1-ethyl 3-methyl imidazolium trifluoromethane sulfonate (EMITf) entrapped in poly (vinylidinefluoride-co-hexafluoropropylene) (PVdF-HFP) dispersed with passive filler Al2O3 and active filler NaAlO2 particles. The free-standing films of the composite GPEs, prepared from solution-cast method, offer optimum ionic conductivity at room temperature (6.3–6.8 × 10−3 S cm−1 and 5.5–6.5 × 10−3 S cm−1 for Al2O3- and NaAlO2-dispersed GPEs, respectively), with sufficient electrochemical stability and excellent thermal stability up to 340 °C. As observed from XRD and SEM, the composites are of predominantly amorphous and porous character, which support the high ionic conduction. The sodium ion transport number has been found to be ∼0.27 for Al2O3-dispersed GPE and 0.42 for NaAlO2-dispersed GPE, which indicates the predominant role of passive and active fillers, Al2O3 and NaAlO2, respectively. The dispersion of NaAlO2 enhances the sodium ion conductivity in composite GPE substantially. The overall ionic conductivity is same as in the case of Al2O3 dispersion. The performance characteristics of GPE, particularly, dispersed with active filler NaAlO2 show its potential applicability as electrolyte/separator in sodium batteries.

AB - We report the studies on composite gel polymer electrolytes (GPEs) comprising 0.5 M solution of sodium trifluoromethane sulfonate (Na-triflate or NaTf) in ionic liquid 1-ethyl 3-methyl imidazolium trifluoromethane sulfonate (EMITf) entrapped in poly (vinylidinefluoride-co-hexafluoropropylene) (PVdF-HFP) dispersed with passive filler Al2O3 and active filler NaAlO2 particles. The free-standing films of the composite GPEs, prepared from solution-cast method, offer optimum ionic conductivity at room temperature (6.3–6.8 × 10−3 S cm−1 and 5.5–6.5 × 10−3 S cm−1 for Al2O3- and NaAlO2-dispersed GPEs, respectively), with sufficient electrochemical stability and excellent thermal stability up to 340 °C. As observed from XRD and SEM, the composites are of predominantly amorphous and porous character, which support the high ionic conduction. The sodium ion transport number has been found to be ∼0.27 for Al2O3-dispersed GPE and 0.42 for NaAlO2-dispersed GPE, which indicates the predominant role of passive and active fillers, Al2O3 and NaAlO2, respectively. The dispersion of NaAlO2 enhances the sodium ion conductivity in composite GPE substantially. The overall ionic conductivity is same as in the case of Al2O3 dispersion. The performance characteristics of GPE, particularly, dispersed with active filler NaAlO2 show its potential applicability as electrolyte/separator in sodium batteries.

KW - Composite materials

KW - Electrochemical properties

KW - Electrochemical techniques

KW - Polymers

KW - Thermogravimetric analysis (TGA)

UR - https://www.scopus.com/pages/publications/84975129383

U2 - 10.1007/s10008-016-3284-6

DO - 10.1007/s10008-016-3284-6

M3 - Article

AN - SCOPUS:84975129383

SN - 1432-8488

VL - 20

SP - 2817

EP - 2826

JO - Journal of Solid State Electrochemistry

JF - Journal of Solid State Electrochemistry

IS - 10

ER -

Ionic liquid-based sodium ion-conducting composite gel polymer electrolytes: effect of active and passive fillers

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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