Enhanced ionic conductivity in PEO-LiClO4 hybrid electrolytes by structural modification

Jin Kyung Lee; Yong Ji Lee; Won Seok Chae; Yun Mo Sung

doi:10.1007/s10832-006-7672-7

Enhanced ionic conductivity in PEO-LiClO₄ hybrid electrolytes by structural modification

Jin Kyung Lee, Yong Ji Lee, Won Seok Chae, Yun Mo Sung

Department of Materials Science and Engineering

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

36 Citations (Scopus)

Abstract

Poly(ethylene oxide)-LiClO₄-TiO₂ organic-inorganic hybrids were synthesized for Li-polymer battery electrolytes using sol-gel processing. The hybrids containing TiO₂ component showed the uniform film formation and also increased ionic conductivity. The hybrid films containing 10 wt% TiO₂ showed the smooth surface morphologies and also the highest ionic conductivity. The molecular-level hybrid formation between PEO and TiO₂ components was identified using FTIR analyses. The hybrids containing TiO₂-Al₂O₃ mixtures showed the enhanced ionic conductivity compared to those containing only TiO₂ most probably due to the Lewis acidic group formation at the surface of Al₂O₃ components. The PEO-LiClO ₄-TiO₂-Al₂O₃ hybrids showed high stability both in ionic conductivity and crystallinity. By the sol-gel processing two inorganic components were successfully introduced in the PEO matrix and high-performance solid electrolytes were achieved.

Original language	English
Pages (from-to)	941-944
Number of pages	4
Journal	Journal of Electroceramics
Volume	17
Issue number	2-4
DOIs	https://doi.org/10.1007/s10832-006-7672-7
Publication status	Published - 2006 Dec

Bibliographical note

Funding Information:
Acknowledgments This study was supported by Korea Science & Engineering Foundation (KOSEF) through a basic science program (R05-2003-000-10503-0) in 2003.

Keywords

Filler
Hybrid
Ionic conductivity
PEO
Sol-Gel

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Mechanics of Materials
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1007/s10832-006-7672-7

Cite this

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title = "Enhanced ionic conductivity in PEO-LiClO4 hybrid electrolytes by structural modification",

abstract = "Poly(ethylene oxide)-LiClO4-TiO2 organic-inorganic hybrids were synthesized for Li-polymer battery electrolytes using sol-gel processing. The hybrids containing TiO2 component showed the uniform film formation and also increased ionic conductivity. The hybrid films containing 10 wt% TiO2 showed the smooth surface morphologies and also the highest ionic conductivity. The molecular-level hybrid formation between PEO and TiO2 components was identified using FTIR analyses. The hybrids containing TiO2-Al2O3 mixtures showed the enhanced ionic conductivity compared to those containing only TiO2 most probably due to the Lewis acidic group formation at the surface of Al2O3 components. The PEO-LiClO 4-TiO2-Al2O3 hybrids showed high stability both in ionic conductivity and crystallinity. By the sol-gel processing two inorganic components were successfully introduced in the PEO matrix and high-performance solid electrolytes were achieved.",

keywords = "Filler, Hybrid, Ionic conductivity, PEO, Sol-Gel",

author = "Lee, {Jin Kyung} and Lee, {Yong Ji} and Chae, {Won Seok} and Sung, {Yun Mo}",

note = "Funding Information: Acknowledgments This study was supported by Korea Science & Engineering Foundation (KOSEF) through a basic science program (R05-2003-000-10503-0) in 2003.",

year = "2006",

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doi = "10.1007/s10832-006-7672-7",

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AU - Lee, Jin Kyung

AU - Lee, Yong Ji

AU - Chae, Won Seok

AU - Sung, Yun Mo

N1 - Funding Information: Acknowledgments This study was supported by Korea Science & Engineering Foundation (KOSEF) through a basic science program (R05-2003-000-10503-0) in 2003.

PY - 2006/12

Y1 - 2006/12

N2 - Poly(ethylene oxide)-LiClO4-TiO2 organic-inorganic hybrids were synthesized for Li-polymer battery electrolytes using sol-gel processing. The hybrids containing TiO2 component showed the uniform film formation and also increased ionic conductivity. The hybrid films containing 10 wt% TiO2 showed the smooth surface morphologies and also the highest ionic conductivity. The molecular-level hybrid formation between PEO and TiO2 components was identified using FTIR analyses. The hybrids containing TiO2-Al2O3 mixtures showed the enhanced ionic conductivity compared to those containing only TiO2 most probably due to the Lewis acidic group formation at the surface of Al2O3 components. The PEO-LiClO 4-TiO2-Al2O3 hybrids showed high stability both in ionic conductivity and crystallinity. By the sol-gel processing two inorganic components were successfully introduced in the PEO matrix and high-performance solid electrolytes were achieved.

AB - Poly(ethylene oxide)-LiClO4-TiO2 organic-inorganic hybrids were synthesized for Li-polymer battery electrolytes using sol-gel processing. The hybrids containing TiO2 component showed the uniform film formation and also increased ionic conductivity. The hybrid films containing 10 wt% TiO2 showed the smooth surface morphologies and also the highest ionic conductivity. The molecular-level hybrid formation between PEO and TiO2 components was identified using FTIR analyses. The hybrids containing TiO2-Al2O3 mixtures showed the enhanced ionic conductivity compared to those containing only TiO2 most probably due to the Lewis acidic group formation at the surface of Al2O3 components. The PEO-LiClO 4-TiO2-Al2O3 hybrids showed high stability both in ionic conductivity and crystallinity. By the sol-gel processing two inorganic components were successfully introduced in the PEO matrix and high-performance solid electrolytes were achieved.

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KW - Hybrid

KW - Ionic conductivity

KW - PEO

KW - Sol-Gel

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