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    Transport properties for ionic liquids used in next generation high capacity batteries

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    GEORGE-DISSERTATION-2015.pdf (1.990Mb)
    Date
    2015-05-13
    Author
    George, Vyran
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    Abstract
    Using room temperature ionic liquids (RTILs) as electrolytes in Li-ion battery systems provides 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 system. These data are also used in conjunction with concentrated solution theory equations to develop a robust porous electrode model for advanced batteries. Furthermore, the effect of organic additives on the electrolyte conductivity, internal resistances and overall cell performance was studied for a RTIL-based electrolyte system.
    URI
    http://hdl.handle.net/1853/55495
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    • Georgia Tech Theses and Dissertations [23877]
    • School of Chemical and Biomolecular Engineering Theses and Dissertations [1516]

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