TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Salt: The iodine salt is lithium iodide, sodium iodide, potassium iodide, magnesium iodide, copper iodide, silicon iodide, manganese iodide, barium iodide, molybdenum iodide, calcium iodide, iron iodide, cesium iodide, zinc iodide, mercury iodide, ammonium iodide, methyl iodide, methylene iodide, ethyl iodide, ethylene iodide, isopropyl iodide, isobutyl iodide, benzyl iodide, benzoyl iodide, allyl iodide or imidazolium iodide.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The content of iodine is 30-1000 weight parts with respect to 100 weight parts of compound (A). The content of iodine salt is 150-3000 weight parts with respect to 100 weight parts of iodine.Preferred Compound: The compound (A) is selected from group formed from 1-20C fatty amine, 1-20C arylamine and 1-20C heterocyclic amine, preferably pyridine, pyridazine, pyrimidine, pyrazine, triazine, triazole, thiazole, thiadiazole, 4-tert-butyl pyridine, 2-amino-pyrimidine or their derivatives. The compound (A) is selected from the group formed from 1-20C aliphatic sulfur compound, 1-20C aryl sulfur compound and 1-20C heterocyclic sulfur compound, perferably dimethyl sulfide, sulfided methylphenyl, thiophene or their derivatives.The compound (A) is selected from the group formed from 1-20C aliphatic phosphorus compound, 1-20C aryl phosphorus compound and 1-20C heterocyclic phosphorus compound.Preferred Solvent: The electrolyte liquid composition contains an organic solvent (10-90 weight%). The solvent is acetonitrile, ethylene glycol, butanol, isobutyl alcohol, isopentyl alcohol, isopropyl alcohol, ethyl ether, dioxane, tetrahydrofuran, n-butyl ether, propylether isopropyl ether, acetone, methyl ethyl ketone, methyl butyl ketone, isobutyl ketone, ethylene carbonate (EC), diethyl carbonate, propylene carbonate (Pharmaceutical composition), dimethyl carbonate (DMC), ethylmethyl carbonate, gamma-butyrolactone, N-methyl-2-pyrrolidone and/or 3-methoxy propionitrile. EXAMPLE - An electrolyte containing 1,2-dimethyl-3-hexyl imidazolium iodide (1500 g), 2-aminopyrimidine (375 g), lithium iodide (104 g), iodine (100 g) and acetonitrile was prepared. The electrolyte was injected in the micropore of electrode. A solar cell having porous membrane between electrodes was produced. The cell had efficiency of 4.11%, open circuit voltage of 0.677 V, short circuit current of 11.07 mA/cm2 and density of 55%.