TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The lithium salt is lithium hexafluorophosphate (preferred), lithium tetrafluoroborate, lithium hexafluoroantimonate, lithium hexafluoroarsenate, lithium perchlorate, lithium trifluoromethanesulfonate, lithium bis(trifluoromethylsulfonyl)imide, lithium bisperfluoroethyl sulfonyl imide, lithium tris(trifluoromethanesulfonyl)methide, lithium bis(trifluoromethanesulfonyl)imide, lithium nonafluoro-1-butanesulfonate, lithium aluminate, lithium tetrachloroaluminate, lithium chloride or lithium iodide. The lithium salt has a concentration of 0.8-1 M.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The separator has many pores, where porosity of the separator is 25-65%, preferably 40-50%. The air permeability of the separator is 75-200 (preferably 75-100) second/100 cc. The first electrode plate comprises a first current collector and a first active material layer formed on a portion of the first current collector, while the first active material layer is not formed on another portion of the first current collector. The second electrode plate comprises a second current collector and a second active material layer formed on a portion of the second current collector, while the second active material layer is not formed on another portion of the second current collector.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The organic solvent comprises a non-aqueous organic solvent, where the organic solvent comprises at least one of carbonate solvent, ether solvent, ester solvent or ketone solvent. The carbonate solvent is dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methylpropyl carbonate, ethyl methyl carbonate, ethylpropyl carbonate, ethylene carbonate, propylene carbonate, 1,2-butylene carbonate, 2,3-butylene carbonate, 1,2-pentylene carbonate or 2,3-pentylene carbonate. The ester solvent is methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, gamma -butyrolactone, gamma -valerolactone, gamma -caprolactone, delta -valerolactone or epsilon -caprolactone. The ether solvent is tetrahydrofuran, 2-methyltetrahydrofuran or dibutyl ether. The ketone solvent is polymethyl vinyl ketone.