Solid nanocomposite electrolyte materials

A solid nanocomposite electrolyte material comprising:

• a mesoporous dielectric material comprising a plurality of interconnected pores, the plurality of interconnected pores defining inner surfaces of the mesoporous dielectric material;
• and
• an electrolyte layer covering the inner surfaces and forming an interface between the electrolyte layer and the inner surfaces,
• wherein the electrolyte layer comprises:
• a first layer comprising a first compound that is ionic or dipolar, the first compound comprising a first anion having a size of at least 7 nm3 and a first cation that has a size greater than the first anion, wherein the first layer is adsorbed on the inner surfaces, thereby introducing or modifying a charge delocalization in the first compound and introducing or modifying a molecular dipole moment over the first compound;
• and
• a second layer covering the first layer, the second layer comprising a second ionic compound comprising a second anion and a second cation, wherein the second cation comprises one or more of Li+, Na+, K+, Ca2+, Mg2+, Cu2+, Al3+, Co2+, or Ni2+, wherein the second layer is bound to the first layer, thereby weakening a bond between the second anion and the second cation and enhancing a mobility of the second cation or the second anion,
• wherein a molar ratio of (a) the first compound and the second ionic compound to (b) the mesoporous dielectric material is greater than a threshold value that corresponds to an ionic conductivity of the interface being greater than a bulk ionic conductivity of the electrolyte layer.