TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Liquid: The electrolyte material is an ionic liquid. Preferred Components: The cation component is chosen from imidazolium derivative cation, pyridinium derivative cation, pyrrolidinium derivative cation, ammonium derivative cation, phosphonium derivative cation, guanidinium derivative cation, isouronium derivative cation and thiourea derivative cation. The anion component is chosen from halogen anion, sulfate anion, sulfonate anion, amide anion, imide anion, methane anion, boric-acid salt anion, phosphate anion and antimony anion.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The organic porous material has several holes in the form of spherical shape provided with uniform internal diameter. The several holes are positioned three-dimensionally inside the organic porous material, and the adjacent spherical holes are mutually connected through a communication port. Preferred Property: The organic porous material has porosity of 70-90 vol.%. Preferred Compound: The organic porous material consists of polyimide containing polyamic acid as a raw material. EXAMPLE - Colloidal silica (2 ml) containing spherical silica particles having average diameter of 550 nm, and water (dispersion medium) were mixed and filtered, to obtain a film. The obtained film was heat-processed at 1100degreesC for 4 hours, to obtain a film-like silica template. The obtained silica template was immersed in polyamic-acid solution containing polyamic acid having degree of polymerization of 3000, dissolved in dimethyl acetamide (solvent), dried, and heat-polymerized at 200degreesC for 1 hour, to obtain a composite film of silica template and polyimide. Then, the silica template was removed from the composite film using hydrogen-fluoride solution, to obtain a polyimide porous membrane. The obtained polyimide porous membrane was impregnated into butyl-methyl imidazolium trifluoro sulfonate imide (ionic liquid) under reduced pressure for 20 minutes, to obtain an ion conductor. The obtained ion conductor had excellent ionic conductivity, strength, chemical-resistance and ductility.