TY - GEN
T1 - Ion conductivity of polymer electrolytes based on PEO containing Li salt and additive salt
AU - Kim, Seok
AU - Hwang, Eun Ju
AU - Kim, Hyung Il
AU - Park, Soo Jin
PY - 2007
Y1 - 2007
N2 - 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 T g 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.
AB - 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 T g 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.
KW - 1-Ethyl-3-methylimidazolium hexafluorophosphate
KW - Lithium salt
KW - Polyethylene oxide
UR - http://www.scopus.com/inward/record.url?scp=38549134317&partnerID=8YFLogxK
U2 - 10.4028/3-908451-27-2.119
DO - 10.4028/3-908451-27-2.119
M3 - Conference contribution
AN - SCOPUS:38549134317
SN - 3908451272
SN - 9783908451273
T3 - Solid State Phenomena
SP - 119
EP - 122
BT - Nanocomposites and Nanoporous Materials - ISNAM7 - Proceedings of the 7th International Symposium on Nanocomposites and Nanoporous Materials (ISNAM7)
PB - Trans Tech Publications Ltd
T2 - 7th International Symposium on Nanocomposites and Nanoporous Materials 2006, ISNAM7
Y2 - 15 February 2006 through 17 February 2006
ER -
