TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The lithium titanium oxide is of formula (Li4+xTiO5O12) (I), (Li2+yTi3O7) (II), and (Li1+x1Ti2-x1Oy1) (III). The anode is made of lithium cobalt oxide, lithium nickel oxide, lithium manganese dioxide, lithium manganese oxide, Li(LiaCobMnc)O2 (IV), LiNi1-y2Mny2O2 (V), Li(Nia1Cob1Mnc1)O4 (VI), LiMn2-zCozO4 (VII), lithium cobalt phosphate, and lithium iron oxide. The lithium titanium oxide compound is Li4Ti5O12, LiTi2O4, Li2TiO3 or Li2Ti3O7. The anode active material is a carbon-based material that comprises natural graphite, artificial graphite, mesocarbon microbead, carbon fiber and carbon black. The anode active material includes 0-30 wt.% of carbon-based material. The dinitrile compound includes adiponitrile, succinonitrile, glutaro nitrile, suberonitrile and sebaconitrile. The amount of dinitrile compound present in the electrolyte is 0.1-10 wt.%, preferably 0.1-5 wt.%.x, y = 0-3;x1 = -0.2 to 1;y1 = 3-4;either a, b, c = 0-1 or a+b+c = 1;y2 = 0-1;either a1, b1, c1 = 0-2 or a2+b2+c2 = 2; andz = 0-2.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The electrolyte includes an organic solvent consisting of propylene carbonate, ethylene carbonate, diethyl carbonate, dimethyl carbonate, dipropyl carbonate, dimethyl sulfoxide, acetonitrile, dimethoxyethane, diethoxyethane, tetrahydrofuran, N-methyl-2-pyrrolidone, ethyl methyl carbonate, gamma -butyrolactone, fluoroethylene carbonate, methyl formate, ethyl formate, propyl formate, methyl acetate, ethyl acetate, propyl acetate, pentyl propionate, methyl propionate, ethyl propionate, butyl propionate, and ethylene. EXAMPLE - The polyvinylidene fluoride was mixed to the weight ratio of 96:4 in the N-methylpyrolidone solvent to prepare a cathode slurry by mixing with binder. The cathode was produced after the cathode slurry was coated on a copper film in the form of the thin plate. The polyvinylidene fluoride and carbon electric material were dispersed into the weight ratio of 96:2:2 in the N-methylpyrolidone solvent to prepare a anode slurry that is a cathode active material. The anode was produced after the anode slurry was coated on a aluminum film in the form of the thin plate. The ethyl methyl carbonate, dimethyl carbonate and ethylene carbonate adiponitrile and 1.3 molar concentration of lithium hexafluorophosphate were added to the volume ratio of 45:45:10 to prepare a non-aqueous electrolyte after mixing. The adiponitrile (0.1 wt.%) was added to the electrolyte. The produced cathode and the anode were compressed using a separation film consisting of the porous polypropylene film with the coiling and the electrolyte was injected into a battery case to produce a lithium secondary battery.