TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Battery: The battery further comprises an anode; a cathode; a separation film interposed between the anode and the cathode and having a through opening so as to form an accommodating space with the anode and the cathode for accommodating the electrolyte solution (S2); an encapsulating structure for encapsulating the anode, the cathode and the separation film; and a binder for adhering the anode metal foil to the first conductive element and for adhering the cathode metal foil to the second conductive element. In lithium battery, the anode comprises a first conductive element and an anode metal foil formed on the first conductive element, so that the first conductive element is interposed between the separation membrane and the anode metal foil; and the cathode comprises a second conductive element and a cathode metal foil formed on the second conductive element, so that the second conductive element is interposed between the separation film and the cathode metal foil and an accommodating space is formed by the separation membrane, the first conductive element and the second conductive element for accommodating the electrolyte solution (S2).    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preparation: No general method for the preparation of the compound (S1) is given. Preferred Components: The first conductive element is lithium or carbide. The carbide is at least one selected from carbon powder, graphite, carbon fiber, carbon nanotube and graphene. The average particle diameter of the carbon powder is 100 nm to 30 mm. The second conductive element is a transition metal oxide mixed with lithium. The transition metal oxide mixed with lithium is at least one selected from LiMnO2, LiMn2O4, LiCoO2, Li2Cr2O7, Li2CrO4, LiNiO2, LiFeO2, LiNixCo1-xO2, LiFePO4, LiMn0.5Ni0.5O2, LiMn1/3Co1/3Ni1/3O2 and LiMc0.5Mn15O4.x=0-1;Mc=divalent 3d transition metal.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - The organic solvent is selected from gamma-butyrolactone, ethylene carbonate, propylene carbonate, diethyl carbonate, propyl acetate, dimethyl carbonate and ethylmethyl carbonate.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The binder is selected from polyvinylidene fluoride, styrene-butadiene rubber, polyamide and melamine resin. The separation film is selected from polyethylene, and/or polypropylene. Preferred Definitions:    R2-R5=cyano;    R1=-C2H4CF3 or -CF3.    SPECIFIC COMPOUNDS - 2 Compounds are disclosed as the compound (S1), i.e. lithium benzo(d)imidazol-1-ide, and lithium 4,5,6,7-tetracyano-2-(3,3,3-trifluoropropyl)benzo(d)imidazol-1-ide.    EXAMPLE - 75.3 mmol Benzimidazole and 50 ml toluene were added to a reactor, mixed and stirred at circulation of high purity nitrogen and ice bath for 1 hour, and then 74.2 mmol n-butyl lithium were added dropwise to the reactor using quantitative burette. The mixture was stirred at ice bath for 3-4 hours until white smoke and exothermic phenomenon disappeared completely, rinsed three times with toluene, filtered and dried to give lithium benzo(d)imidazol-1-ide.