(35a) Transport Properties for Ionic Liquids Used In Next Generation High Capacity Batteries

Using room temperature ionic liquids (RTILS) as electrolytes in Li-based batteries provide important safety and performance benefits over the more volatile, combustible organic solvents currently used. However, in order to gain a more profound understanding of transport in these electrolytes, properties such as conductivity, transference numbers, and salt activity must be measured as a function of salt concentration.  Experimental Methods are proposed for calculating a complete set of transport properties for a room temperature ionic liquid (RTIL) system. These data will be used in conjunction with concentrated solution theory equations to develop a robust performance model for advanced batteries.