TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Compounds: The lithium salt is selected from lithium hexafluorophosphate, lithium perchlorate, lithium hexafluoroarsenate, lithium tetrafluoroborate, lithium hexafluroantimonate, lithium aluminum chloride, lithium chloride, lithium iodide, lithium aluminate or lithium salt having general formula (II-VIII). LiN(C2F5SO3)2 (II) LiN(C2F5SO2)2 (III) LiN(CF3SO2)2 (IV) LiCF3SO3 (V) LiC4F9SO3 (VI) LiN(CxF2x+1SO2) (VII) LiN(CyF2y+1SO2) (VIII)x and y=1 or greater than 1.The positive electrode is made of compound having general formula (IX-XIX). LixMn1-yMyA2 (IX) LixMn2O4-zXz (X) LixMn2-yMyM'zA4 (XI) LizCo1-yMyA2 (XII) LizCo1-yMyO2-zXz (XIII) LixNi1-yMyO2-zXz (XIV) LixNi1-yCoyO2-zXz (XV) LixNi1-y-zCoyMzAa (XVI) LixNi1-y-zCoyMzO2-aXa (XVII) LixNi1-y-zMnyMzAa (XVIII) LixNi1-zMnyMzO2-aXa (XIX)x=0.9-1.1;y and z=0-0.5;a=0-2;M and M'=identical or dissimilar, Mg, Al, Co, K, Na, Ca, Si, Ti, Sn, V, Ge, Ga, B, As, Zr, Mn, Cr, Fe, Sr, V or rare earth metals;A=O, F, S or P; andX=F, S or P.The negative electrode is made of coated metal, which is selected from crystalline carbon, amorphous carbon, carbon complex, carbon fiber, lithium metal, lithium alloy or lithium composite.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Solvents: The carbonate-based solvent is mixture of cyclic type carbonate-based organic solvent and chain type carbonate-based organic solvent in 1:1 or 1:9 volume ratio, where chain type carbonate-based organic solvent is selected from ethylene carbonate, polypropylene carbonate, 1,2-butylene carbonate, 2,3-butylene carbonate, 1,2-pentylene carbonate or 2,3-pentylene carbonate and cyclic type carbonate-based organic solvent is selected from dimethyl carbonate, diethyl carbonate, dipropyl carbonate, ethyl methyl carbonate, methyl propyl carbonate or ethylpropyl carbonate. The ester solvent is selected from methyl acetate, ethylacetate, propyl acetate, methyl propionate, ethyl propionate, gamma -butyrolactone, gamma -valerolactone, gamma -carprolactone, delta -valerolactone or epsilon -carprolactone. The ether-based solvent is selected from tetrahydrofuran, 2-methyltetrahydrofuran or dibuthyl ether. The ketone-based solvent is polymethyl vinyl ketone. The organic solvent is selected from benzene, fluorobenzene, bromobenzene, chlorobenzene, toluene, xylene, mesitylene, fluoro toluene, difluorotoluene or trifluorotoluene having general formula (I).R=1-10C alkyl or halogen; andq=0-6.