Electrochemical behaviors of polymer composit electrolytes containing imidazolium-type room-temperature molten salts

Seok Kim; Soo Jin Park

doi:10.H66/jnn.2009.1665

Electrochemical behaviors of polymer composit electrolytes containing imidazolium-type room-temperature molten salts

Seok Kim
, Soo Jin Park

Department of Chemical Engineering
Pusan National University
Inha University

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

Abstract

The effects of room-temperature molten salt addition on electrochemical properties of polymer com posite electrolytes (PCE) based on poly(ethylene oxide) (PEO) were studied. Alkyl-imidazolium salt, 1-butyl-3-methyl-imidazolium hexafluorophosphate (BMIPF ₆) could influence ion transference phenomena, resulting the change of ionic conductivity of PCE. The PCE containing 1.2 mole% BMIPF ₆ showed the slightly lower melting temperature than PEO-LiCI0 ₄. The PCE showed the highestion conductivity of 2.9*10 ^-4 S/cm, which is one-order-of-magnitude higher value than the pristine sample. This is probably originated from the improved ion transference and slightly decreased crys-tallinity. Li ion transference number was increased to 0.55 and the stable electrochemical voltage limit was upgraded to ̃4.3 V. Consequently, the ion conducting behaviors and the electrochemical stability had been improved by BMIPF ₆ addition.

Original language	English
Pages (from-to)	7265-7268
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	9
Issue number	12
DOIs	https://doi.org/10.H66/jnn.2009.1665
Publication status	Published - 1 Dec 2009
Externally published	Yes

Keywords

Conductivity
Electrochemical behavior
Imidazolium salt
Polyethylene oxide
Thermal property

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10.H66/jnn.2009.1665

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title = "Electrochemical behaviors of polymer composit electrolytes containing imidazolium-type room-temperature molten salts",

abstract = "The effects of room-temperature molten salt addition on electrochemical properties of polymer com posite electrolytes (PCE) based on poly(ethylene oxide) (PEO) were studied. Alkyl-imidazolium salt, 1-butyl-3-methyl-imidazolium hexafluorophosphate (BMIPF 6) could influence ion transference phenomena, resulting the change of ionic conductivity of PCE. The PCE containing 1.2 mole\% BMIPF 6 showed the slightly lower melting temperature than PEO-LiCI0 4. The PCE showed the highestion conductivity of 2.9*10 -4 S/cm, which is one-order-of-magnitude higher value than the pristine sample. This is probably originated from the improved ion transference and slightly decreased crys-tallinity. Li ion transference number was increased to 0.55 and the stable electrochemical voltage limit was upgraded to{\~ }4.3 V. Consequently, the ion conducting behaviors and the electrochemical stability had been improved by BMIPF 6 addition.",

keywords = "Conductivity, Electrochemical behavior, Imidazolium salt, Polyethylene oxide, Thermal property",

author = "Seok Kim and Park, \{Soo Jin\}",

year = "2009",

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doi = "10.H66/jnn.2009.1665",

language = "English",

volume = "9",

pages = "7265--7268",

journal = "Journal of Nanoscience and Nanotechnology",

issn = "1533-4880",

publisher = "American Scientific Publishers",

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T1 - Electrochemical behaviors of polymer composit electrolytes containing imidazolium-type room-temperature molten salts

AU - Kim, Seok

AU - Park, Soo Jin

PY - 2009/12/1

Y1 - 2009/12/1

N2 - The effects of room-temperature molten salt addition on electrochemical properties of polymer com posite electrolytes (PCE) based on poly(ethylene oxide) (PEO) were studied. Alkyl-imidazolium salt, 1-butyl-3-methyl-imidazolium hexafluorophosphate (BMIPF 6) could influence ion transference phenomena, resulting the change of ionic conductivity of PCE. The PCE containing 1.2 mole% BMIPF 6 showed the slightly lower melting temperature than PEO-LiCI0 4. The PCE showed the highestion conductivity of 2.9*10 -4 S/cm, which is one-order-of-magnitude higher value than the pristine sample. This is probably originated from the improved ion transference and slightly decreased crys-tallinity. Li ion transference number was increased to 0.55 and the stable electrochemical voltage limit was upgraded to ̃4.3 V. Consequently, the ion conducting behaviors and the electrochemical stability had been improved by BMIPF 6 addition.

AB - The effects of room-temperature molten salt addition on electrochemical properties of polymer com posite electrolytes (PCE) based on poly(ethylene oxide) (PEO) were studied. Alkyl-imidazolium salt, 1-butyl-3-methyl-imidazolium hexafluorophosphate (BMIPF 6) could influence ion transference phenomena, resulting the change of ionic conductivity of PCE. The PCE containing 1.2 mole% BMIPF 6 showed the slightly lower melting temperature than PEO-LiCI0 4. The PCE showed the highestion conductivity of 2.9*10 -4 S/cm, which is one-order-of-magnitude higher value than the pristine sample. This is probably originated from the improved ion transference and slightly decreased crys-tallinity. Li ion transference number was increased to 0.55 and the stable electrochemical voltage limit was upgraded to ̃4.3 V. Consequently, the ion conducting behaviors and the electrochemical stability had been improved by BMIPF 6 addition.

KW - Conductivity

KW - Electrochemical behavior

KW - Imidazolium salt

KW - Polyethylene oxide

KW - Thermal property

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DO - 10.H66/jnn.2009.1665

M3 - Article

AN - SCOPUS:70350220748

SN - 1533-4880

VL - 9

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JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

IS - 12

ER -

Electrochemical behaviors of polymer composit electrolytes containing imidazolium-type room-temperature molten salts

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Keywords

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