  We explore an idealized theoretical model for the transport of ions within
highly asymmetric ionic liquid mixtures. A primitive model (PM)-inspired system
serves as a representative for asymmetric ionic materials (such as liquid
crystalline salts) which quench to form disordered, partially-arrested phases.
Self-Consistent Generalized Langevin Equation (SCGLE) Theory is applied to
understand the connection between the size ratio of charge-matched salts and
their average mobility. Within this model, we identify novel glassy states
where one of the two charged species (either the macro-cation or the
micro-anion) are arrested, while the other retains mobility. We discuss how
this result is useful in the development of novel single-ion conducting phases
in ionic liquid based materials.
