Liquid Structure and Ion Transport in Ionic Liquids

Ionic Liquids are liquid salts that haveremarkable physical properties such as thermal and electrochemical stability,non-flammability, and negligible volatility, which render them ideal solvents,catalysts, and electrolytes in various processes. This study aims to introducea control knob for liquid structure and ion dynamics in ionic liquids. Thistailoring approach may lead to the realization of safer batteries withnonflammable electrolytes operable at temperatures beyond the range oftraditional electrolytes and within extremely reductive or oxidative environmentssuch as high-energy density lithium metal batteries where all otherelectrolytes fail. 

Significance of Ion Solvation Structure

Partial solvation of asolute ion by different counter ions and ligand exchanges impact the solvationstructure and ion transport in ionic liquid mixtures. The rigidity of this solvated ion shell and the ability of the ion to move with its solvation shell versus jumping out to the neighboring site ultimately impact the rate capability in a rechargable battery: that is how fast we can charge and discharge the battery.

ILs for safer batteries

ILs offer promise in regards to safety; however require improvement in conductivity. Thanks to their flexible ion structure and pairing, their physicohemical properties are tunable.

Our research article on electrode-electrolyte interface with ionic liquids got highlighted in the back cover of JCCP.

Klein et al. (2018)



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