The rapid growing market of electric transportation i.e. electric vehicles, laptop and cellular phones, has raised a large interest in safety of lithium batteries in the recent years. So, much attention has currently been paid to the solvent-free batteries, especially the case of solid-state batteries, which are made of inorganic solid components, and of batteries using solvent-free polymer electrolytes. In lithium battery field, solvate lithium ionic liquids are a new class of room-temperature ionic liquids (ILs), who exhibit desirable properties, including high lithium transport, high Li⁺ capacity and improved oxidative stability. Lithium ILs type solid polymer electrolyte which improve the performance is attributed to the weak static interaction between Li⁺ and the counter ion, and the immobilized anions  therefore might lead to a favored cationic charge transport.