Synthesis and conductivity of organosilicon-based electrolytes for energy storage applications

CHED 1259

Rachel R Butorac1, Lingzhi Zhang1, and Robert West, west@chem.wisc.edu2. (1) Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, (2) Organosilicon Research Center, Department of Chemistry, University of Wisconsin - Madison, 1101 University Avenue, Madison, WI 53706
The development of electrical energy storage devices calls for novel electrolytes to meet the requirements of high conductivity, electrochemical stability, safety, etc. Compared to the conventional organic electrolytes such as acetonitrile and alkylcarbonates, organosilicon-based compounds have many potential advantages as electrolytes. Two series of organosilicon-based electrolytes containing trimethylsilyl and oligo(ethyl ene oxide) units were synthesized and characterized. After doping with lithium bis(trifluorosulfonyl) imide (LiTFSI), the ionic conductivity of the electrolytes was measured by AC impedance experiments. Their viscosity, dielectric constants, and cyclic voltammetry were also measured and compared.
 

Undergraduate Research Poster Session: Inorganic Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster

Division of Chemical Education

The 233rd ACS National Meeting, Chicago, IL, March 25-29, 2007