Preparation and ion-conducting behaviors of poly(ethylene oxide)-composite electrolytes containing lithium montmorillonite

Seok Kim; Soo Jin Park

doi:10.1016/j.ssi.2007.03.008

Preparation and ion-conducting behaviors of poly(ethylene oxide)-composite electrolytes containing lithium montmorillonite

Seok Kim
, Soo Jin Park

Advanced Materials Division
Center for Convergent Research of Emerging Virus Infection
Inha University

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

80 Citations (Scopus)

Abstract

Filler effects of layer-structured lithium montmorillonite (Li-MMT) clays on the structure and ion conductivity of poly(ethylene oxide) (PEO)-based electrolytes were investigated. Sodium cations in MMT were exchanged by Li cations for a usage as Li ion sources in Li batteries. With the increase of filler content to 20%, melting temperature and crystallinity of polymer composite electrolytes (PCEs) had been gradually decreased. Accordingly, the PCEs containing 20% Li-MMT showed the highest conductivity of 5.3 × 10^{- 6} (S/cm) and the highest lithium transference number of 0.55. These enhanced conducting behaviors were probably attributed to the decreased crystallinity of PEO, resulting from the structural and morphological changes by addition of Li-MMT. The change of conductivity with temperature was found to be related to the polymer segmental motion by an Arrhenius plot analysis.

Original language	English
Pages (from-to)	973-979
Number of pages	7
Journal	Solid State Ionics
Volume	178
Issue number	13-14
DOIs	https://doi.org/10.1016/j.ssi.2007.03.008
Publication status	Published - 31 May 2007
Externally published	Yes

Keywords

Crystalline structure
Ionic conductivity
Lithium montmorillonite
Poly(ethylene oxide)
Polymer composite electrolytes

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10.1016/j.ssi.2007.03.008

Cite this

@article{8105a43563e2429b898077519cb064b1,

title = "Preparation and ion-conducting behaviors of poly(ethylene oxide)-composite electrolytes containing lithium montmorillonite",

abstract = "Filler effects of layer-structured lithium montmorillonite (Li-MMT) clays on the structure and ion conductivity of poly(ethylene oxide) (PEO)-based electrolytes were investigated. Sodium cations in MMT were exchanged by Li cations for a usage as Li ion sources in Li batteries. With the increase of filler content to 20\%, melting temperature and crystallinity of polymer composite electrolytes (PCEs) had been gradually decreased. Accordingly, the PCEs containing 20\% Li-MMT showed the highest conductivity of 5.3 {\texttimes} 10- 6 (S/cm) and the highest lithium transference number of 0.55. These enhanced conducting behaviors were probably attributed to the decreased crystallinity of PEO, resulting from the structural and morphological changes by addition of Li-MMT. The change of conductivity with temperature was found to be related to the polymer segmental motion by an Arrhenius plot analysis.",

keywords = "Crystalline structure, Ionic conductivity, Lithium montmorillonite, Poly(ethylene oxide), Polymer composite electrolytes",

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

year = "2007",

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doi = "10.1016/j.ssi.2007.03.008",

language = "English",

volume = "178",

pages = "973--979",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier B.V.",

number = "13-14",

}

TY - JOUR

T1 - Preparation and ion-conducting behaviors of poly(ethylene oxide)-composite electrolytes containing lithium montmorillonite

AU - Kim, Seok

AU - Park, Soo Jin

PY - 2007/5/31

Y1 - 2007/5/31

N2 - Filler effects of layer-structured lithium montmorillonite (Li-MMT) clays on the structure and ion conductivity of poly(ethylene oxide) (PEO)-based electrolytes were investigated. Sodium cations in MMT were exchanged by Li cations for a usage as Li ion sources in Li batteries. With the increase of filler content to 20%, melting temperature and crystallinity of polymer composite electrolytes (PCEs) had been gradually decreased. Accordingly, the PCEs containing 20% Li-MMT showed the highest conductivity of 5.3 × 10- 6 (S/cm) and the highest lithium transference number of 0.55. These enhanced conducting behaviors were probably attributed to the decreased crystallinity of PEO, resulting from the structural and morphological changes by addition of Li-MMT. The change of conductivity with temperature was found to be related to the polymer segmental motion by an Arrhenius plot analysis.

AB - Filler effects of layer-structured lithium montmorillonite (Li-MMT) clays on the structure and ion conductivity of poly(ethylene oxide) (PEO)-based electrolytes were investigated. Sodium cations in MMT were exchanged by Li cations for a usage as Li ion sources in Li batteries. With the increase of filler content to 20%, melting temperature and crystallinity of polymer composite electrolytes (PCEs) had been gradually decreased. Accordingly, the PCEs containing 20% Li-MMT showed the highest conductivity of 5.3 × 10- 6 (S/cm) and the highest lithium transference number of 0.55. These enhanced conducting behaviors were probably attributed to the decreased crystallinity of PEO, resulting from the structural and morphological changes by addition of Li-MMT. The change of conductivity with temperature was found to be related to the polymer segmental motion by an Arrhenius plot analysis.

KW - Crystalline structure

KW - Ionic conductivity

KW - Lithium montmorillonite

KW - Poly(ethylene oxide)

KW - Polymer composite electrolytes

UR - https://www.scopus.com/pages/publications/34250186448

U2 - 10.1016/j.ssi.2007.03.008

DO - 10.1016/j.ssi.2007.03.008

M3 - Article

AN - SCOPUS:34250186448

SN - 0167-2738

VL - 178

SP - 973

EP - 979

JO - Solid State Ionics

JF - Solid State Ionics

IS - 13-14

ER -

Preparation and ion-conducting behaviors of poly(ethylene oxide)-composite electrolytes containing lithium montmorillonite

Abstract

Keywords

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