Two-dimensional insulator based printable ion-conductive and viscosity-tunable inks, fabricating methods and applications of same

A method for forming a structure that possesses high ionic conductivity, chemical and thermal stability, and electrically insulating character, comprising:

• performing a printing method to deposit a two-dimensional (2D) insulating material based printable ink on a substrate to form a printed structure thereon, wherein the 2D insulating material based printable ink comprises at least one solvent;
• and an exfoliated composition dispersed in the at least one solvent, wherein the exfoliated composition comprises a 2D insulating material and a dispersant and stabilizing agent;
• thermally annealing the printed structure to promote volatilization of the dispersant and stabilizing agent, resulting in a porous microstructure and formation of a nanoscale carbonaceous coating on the 2D insulating material that promotes organic electrolyte wettability of the printed structure.

A method for forming two-dimensional (2D) insulating material based printable ink, comprising:

• obtaining an exfoliated composition comprising a 2D insulating material and a dispersant and stabilizing agent;
• and
• dispersing the exfoliated composition in at least one solvent.