TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred battery: The coil electrode incorporates a negative electrode lead adjacent to and more forward then the outermost end of the collector. The coil electrode has a structure that distance L from the outermost end of the negative electrode collector to the outermost end of the positive electrode collector in a fore - and - aft direction satisfies the relationship 0 less than L at most pid (d = coil diameter). The negative electrode material is at least one of crystalline and amorphous metal oxide which permit doping / dedoping lithium ions. The positive electrode mix contains a conductive material and a binder.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred battery: The positive electrode material is at least one LiMO2 (M = at least one of cobalt, nickel, manganese, iron, aluminum, vanadium and titanium) and interlayer compounds each containing Li. The positive electrode collector is at least one of aluminum, stainless steel, and nickel, and the negative electrode collector is at least one of copper, stainless steel, and nickel. The electrolyte is at least one of LiClO4, LiAsF6, LiPF6, LiBF4, LiB(C6H5)4, LiCl, LiBr, LiSO3CH3, and LiSO3CF3.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred battery: The non-aqueous electrolyte is prepared by dissolving an electrolyte in at least one of propylene carbonate, ethylene carbonate, 1,2-dimethoxyethane, 1,2-diethoxyethane, diethylcarbonate, gamma-butyrolactone, tetrahydrofuran, 1,3-dioxane, 4-methyl-1,3-dioxolane, diethylether, sulfolane, methylsulfolane, acetonitrile, and propionitrile.    TECHNOLOGY FOCUS - POLYMERS - Preferred battery: The separator is at least one of polyethylene and polypropylene. EXAMPLE - Pitch coke was prepared by calcining petroleum pitch at 1000 degreesC in an inert atmosphere. 90 parts of the coke and 10 parts polyvinylidene fluoride PVDF were mixed to form the negative electrode mix which was dispersed in N-methylpyrrolidone solvent and coated 105 mum thick on both sides of a 10 mum thick copper foil. The foil was then dried and compression molded to form a 41.5 mm x 250 mm electrode. No coating was applied to the collector on the outermost end of the electrode. The positive electrode material was formed by calcining 0.05 mole lithium carbonate and 1 mole cobalt carbonate at 900 degreesC for 5 hr in air to form LiCoO2. Then 91 parts LiCoO2, 6 parts graphite, 3 parts PVDF were dispersed in N-methylpyrrolidone and coated 80 mum thick onto both sides of a 20 mum thick aluminum foil, and dried and compression molded to form an electrode 39.5 mm wide with a portion 167 mm long with coating on both sides and with an uncoated portion 80 mm long at each end. Then the electrodes and two small pore polypropylene film separators 25 mum thick and 44 mm wide were laminated and coiled to form an electrode as per the claimed structure. The outer diameter of the coil = 13 mm and the inner hollow portion = 3.5 mm, distance L = 35 mm. The coil was placed in a nickel plated iron can with insulating plates on top and bottom ends. A positive electrode lead was connected to the battery cover and the negative electrode lead connected to the can by welding. 3 g of Non-aqueous electrolyte consisting of 1 mole / l LiPF6 in 1 : 1 propylene carbonate and diethyl carbonate was injected into the can and the can hermetically sealed. The battery had an energy density ratio = 100 % with Defective = 3 % after charging for 8 hr at 4.2 V and 300 mA, and then discharging with load = 600 mA to 2.75 V