TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Salt: The normal temperature fused salt is quaternary-ammonium salt having melting point of 60degreesC or less. Preferred Electrode: The anode further contains an electroconductive agent. Preferred Material: The occlusion and dischargeable material of lithium from lithium metal, lithium alloy and lithium oxide, is silicon, carbon and/or fluorocarbon.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Salt: The normal temperature fused salt is quaternary-ammonium salt having melting point of 60degreesC or less. Preferred Electrode: The anode further contains an electroconductive agent. Preferred Material: The occlusion and dischargeable material of lithium from lithium metal, lithium alloy and lithium oxide, is silicon, carbon and/or fluorocarbon.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The volume ratio of solvents (I & II) is 99:1-90:10. SPECIFIC COMPOUNDS - The solvent (I) is triethylene glycol dimethyl ether or tetraethylene-glycol dimethyl ether, and the solvent (II) is trimethyl propyl ammonium bis(trifluoro methylsulfonyl) imide.    EXAMPLE - Triethylene glycol dimethyl ether and trimethyl propyl ammonium bis (trifluoro methyl sulfonyl) imide were mixed in the ratio of 90:10. Further, 1M lithium bis (trifluoro methyl sulfonyl) imide was dissolved in above solution. Then, lithium sulfide and sulfur simple substance were added in excess and non-aqueous electrolyte was obtained. Ketchen black (electroconductive agent) (in wt.%) (35) and sulfur simple substance (active material) (60) were mixed in ball mill. Then, carboxy methyl cellulose (thickener) (1) mixed with styrene butadiene rubber (binder) (4) and slurry was produced. The obtained slurry was applied on electrolyzed aluminum foil, dried at 50degreesC using hot plate, and then vacuum-dried at 50degreesC or more to obtain anode. The non-aqueous electrolyte was injected into a test cell at inert atmosphere, anode was introduced and then lithium metal (cathode) was introduced and non-aqueous electrolyte secondary battery was obtained. The battery had excellent charging-and-discharging efficiency, cycle capability and high capacitance.