Title:
Synthesis of Novel Organosilicon Ionic Liquid and Their Lithium Ion Battery Application

Speaker(s):
K. JAIN¹, R. VEDARAJAN¹, ^*N. MATSUMI<sup>1

1)</sup> School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa, Japan
^* This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract:
A novel silica- functionalized imidazolium based IL with Br^- as counter anion has been synthesized via two step process. Anion exchange reaction was carried out to change Br^- as counter anion to FSI^- anion (Figure 1). This novel IL has been successfully characterized with the help of NMR and IR spectroscopy. Its electrochemical properties have been studied as electrolyte for Li-ion batteries. This IL showed ionic conductivity of the order of 10^-5 S/cm at 51 °C which increased by one order to 10^-4 S/cm at 51 °C with the addition of 1 eq. of LiFSI salt. Its Li-transference number was observed to be 0.48.

Figure1: Silica-functionalized IL with FSI as counter anion.