Electrochemical and spectroscopic properties of electrospun PAN-based fibrous polymer electrolytes

S. W. Choi, J. R. Kim, S. M. Jo, W. S. Lee, Y. R. Kim

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Microporous fibrous polymer electrolytes were prepared by immersing electrospun poly(acrylonitrile) (PAN)-based fibrous membranes into lithium salt-based electrolytes. They showed high ionic conductivities of up to 1.0 × 10-3 S/cm at 20°C, and sufficient electrochemical stabilities of up to 4.5 V. Their ion conduction depended on the physicochemical properties of the lithium salt-based electrolytes trapped in pores, as well as on the interactions among the Li+ ion, the carbonate, and the PAN. From the Fourier transform-Raman data, lithium ion transport was mainly achieved by the lithium salt-based electrolytes in pores via the interaction between the Li+ ion and the C=0 group of carbonate molecules, and was also affected by the PAN through the interaction between the Li+ ion and the C≡N groups of PAN. Their electrochemical stabilities were enhanced by the swelling of the electrospun PAN nanofibers because of the dipolar interaction between the C≡N groups of PAN and the C=O groups of carbonate in the lithium salt-based electrolytes. Prototype cells using electrospun PAN-based fibrous polymer electrolytes thus showed different cyclic performances, according to the composition of the lithium salt-based electrolytes. The prototype cell with 1 M LiPF6-ethylene carbonate/dimethyl carbonate (1/1) showed the highest discharge capacity and the most stable cyclic performance among them.

Original languageEnglish
Pages (from-to)A989-A995
JournalJournal of the Electrochemical Society
Volume152
Issue number5
DOIs
Publication statusPublished - 2005 Jun 22

Fingerprint

polyacrylonitrile
Electrolytes
Lithium
Polymers
electrolytes
lithium
Carbonates
carbonates
Salts
polymers
Ions
salts
ions
Fibrous membranes
prototypes
interactions
porosity
acrylonitriles
Ionic conductivity
Nanofibers

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

@article{674f60d6612f49e2bdde6228585b4fe8,
title = "Electrochemical and spectroscopic properties of electrospun PAN-based fibrous polymer electrolytes",
abstract = "Microporous fibrous polymer electrolytes were prepared by immersing electrospun poly(acrylonitrile) (PAN)-based fibrous membranes into lithium salt-based electrolytes. They showed high ionic conductivities of up to 1.0 × 10-3 S/cm at 20°C, and sufficient electrochemical stabilities of up to 4.5 V. Their ion conduction depended on the physicochemical properties of the lithium salt-based electrolytes trapped in pores, as well as on the interactions among the Li+ ion, the carbonate, and the PAN. From the Fourier transform-Raman data, lithium ion transport was mainly achieved by the lithium salt-based electrolytes in pores via the interaction between the Li+ ion and the C=0 group of carbonate molecules, and was also affected by the PAN through the interaction between the Li+ ion and the C≡N groups of PAN. Their electrochemical stabilities were enhanced by the swelling of the electrospun PAN nanofibers because of the dipolar interaction between the C≡N groups of PAN and the C=O groups of carbonate in the lithium salt-based electrolytes. Prototype cells using electrospun PAN-based fibrous polymer electrolytes thus showed different cyclic performances, according to the composition of the lithium salt-based electrolytes. The prototype cell with 1 M LiPF6-ethylene carbonate/dimethyl carbonate (1/1) showed the highest discharge capacity and the most stable cyclic performance among them.",
author = "Choi, {S. W.} and Kim, {J. R.} and Jo, {S. M.} and Lee, {W. S.} and Kim, {Y. R.}",
year = "2005",
month = "6",
day = "22",
doi = "10.1149/1.1887166",
language = "English",
volume = "152",
pages = "A989--A995",
journal = "Journal of the Electrochemical Society",
issn = "0013-4651",
publisher = "Electrochemical Society, Inc.",
number = "5",

}

Electrochemical and spectroscopic properties of electrospun PAN-based fibrous polymer electrolytes. / Choi, S. W.; Kim, J. R.; Jo, S. M.; Lee, W. S.; Kim, Y. R.

In: Journal of the Electrochemical Society, Vol. 152, No. 5, 22.06.2005, p. A989-A995.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electrochemical and spectroscopic properties of electrospun PAN-based fibrous polymer electrolytes

AU - Choi, S. W.

AU - Kim, J. R.

AU - Jo, S. M.

AU - Lee, W. S.

AU - Kim, Y. R.

PY - 2005/6/22

Y1 - 2005/6/22

N2 - Microporous fibrous polymer electrolytes were prepared by immersing electrospun poly(acrylonitrile) (PAN)-based fibrous membranes into lithium salt-based electrolytes. They showed high ionic conductivities of up to 1.0 × 10-3 S/cm at 20°C, and sufficient electrochemical stabilities of up to 4.5 V. Their ion conduction depended on the physicochemical properties of the lithium salt-based electrolytes trapped in pores, as well as on the interactions among the Li+ ion, the carbonate, and the PAN. From the Fourier transform-Raman data, lithium ion transport was mainly achieved by the lithium salt-based electrolytes in pores via the interaction between the Li+ ion and the C=0 group of carbonate molecules, and was also affected by the PAN through the interaction between the Li+ ion and the C≡N groups of PAN. Their electrochemical stabilities were enhanced by the swelling of the electrospun PAN nanofibers because of the dipolar interaction between the C≡N groups of PAN and the C=O groups of carbonate in the lithium salt-based electrolytes. Prototype cells using electrospun PAN-based fibrous polymer electrolytes thus showed different cyclic performances, according to the composition of the lithium salt-based electrolytes. The prototype cell with 1 M LiPF6-ethylene carbonate/dimethyl carbonate (1/1) showed the highest discharge capacity and the most stable cyclic performance among them.

AB - Microporous fibrous polymer electrolytes were prepared by immersing electrospun poly(acrylonitrile) (PAN)-based fibrous membranes into lithium salt-based electrolytes. They showed high ionic conductivities of up to 1.0 × 10-3 S/cm at 20°C, and sufficient electrochemical stabilities of up to 4.5 V. Their ion conduction depended on the physicochemical properties of the lithium salt-based electrolytes trapped in pores, as well as on the interactions among the Li+ ion, the carbonate, and the PAN. From the Fourier transform-Raman data, lithium ion transport was mainly achieved by the lithium salt-based electrolytes in pores via the interaction between the Li+ ion and the C=0 group of carbonate molecules, and was also affected by the PAN through the interaction between the Li+ ion and the C≡N groups of PAN. Their electrochemical stabilities were enhanced by the swelling of the electrospun PAN nanofibers because of the dipolar interaction between the C≡N groups of PAN and the C=O groups of carbonate in the lithium salt-based electrolytes. Prototype cells using electrospun PAN-based fibrous polymer electrolytes thus showed different cyclic performances, according to the composition of the lithium salt-based electrolytes. The prototype cell with 1 M LiPF6-ethylene carbonate/dimethyl carbonate (1/1) showed the highest discharge capacity and the most stable cyclic performance among them.

UR - http://www.scopus.com/inward/record.url?scp=20444414877&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=20444414877&partnerID=8YFLogxK

U2 - 10.1149/1.1887166

DO - 10.1149/1.1887166

M3 - Article

AN - SCOPUS:20444414877

VL - 152

SP - A989-A995

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 5

ER -