Ion conductivity of polymer electrolytes based on PEO containing Li salt and additive salt

Seok Kim, Eun Ju Hwang, Hyung Il Kim, Soo Jin Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Solid type polymer electrolyte is in progress of research and development in many ways to improve an ionic conductivity to attain 10-3 S/cm which is possibility of practical use of secondary lithium ion battery. There are two major methods of improving ionic conductivity; either lowering Tg of polymer or lowering the energy of ionic movement. In this work, the solid type polymer electrolyte (SPE) composites, which were composed of poly(ethylene oxide) (PEO), ethylene carbonate (EC) as a plasticizer, lithium salt, and 1-ethyl-3-methylimidazolium hexafluorophosphate (EMI-PF6) as a filler in order to improve the ion conductivity of the SPE, were prepared. The influence of EMI-PF6 contents on the ionic conductivity of the SPE composites was investigated in this work. As a result, the ionic conductivity of the SPE was enhanced by an increase in EMI-PF6 content, and showed the highest ionic conductivity at 40 wt.%. It was thought that there was a close correlation between the mobility of Li+ and EMI content in a SPE composite system.

Original languageEnglish
Title of host publicationNanocomposites and Nanoporous Materials
EditorsChang Kyu Rhee
PublisherTrans Tech Publications Ltd
Pages119-122
Number of pages4
ISBN (Print)9783908451273
DOIs
StatePublished - 2007
Event7th International Symposium on Nanocomposites and Nanoporous Materials, ISNAM 2006 - Gyeongju, Korea, Republic of
Duration: 15 Feb 200617 Feb 2006

Publication series

NameSolid State Phenomena
Volume119
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

Conference7th International Symposium on Nanocomposites and Nanoporous Materials, ISNAM 2006
Country/TerritoryKorea, Republic of
CityGyeongju
Period15/02/0617/02/06

Bibliographical note

Publisher Copyright:
© (2007) Trans Tech Publications, Switzerland.

Keywords

  • 1-ethyl-3-methylimidazolium hexafluorophosphate
  • Lithium salt
  • Polyethylene oxide

Fingerprint

Dive into the research topics of 'Ion conductivity of polymer electrolytes based on PEO containing Li salt and additive salt'. Together they form a unique fingerprint.

Cite this