Ionic Liquids, Superionic glasses, Quasi-Ionic Liquids, Quasi-Liquid Ionics, all with High Conductivities but some with Little Fluidity. Where does the Paradigm End?

We overview the field of ionic liquids from the viewpoint of the electrochemist, considering the different classes of ionic liquids, aprotic, and protic that may be produced within the fields of inorganic and organic chemistry, utilizing both aprotic and protic types and some variants on the theme of particle transfer production of ionic materials. Brief mention will be made of the possible advantages of systems that are glassy solids but more conductive than most liquids, and semi-liquids, that are crystals with respect to their centers of mass, but have their rotational degrees of freedom, highly excited. Some applications in battery technology will be discussed, and some limitations will be noted