TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The negative electrode includes carbonaceous material as active material, and silicon, tin and/or lead atom as active material.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Compounds: Compound (A) is of formula: (O=)nY'(-OR4)(-OR6)-(-OR5)m.Y'=P, B, S or -CO-Ra-CO-;R4-R6=H, 1-10C hydrocarbyl optionally substituted by halo, or group (a), with at least one being group (a);Ra=1-3C hydrocarbyl optionally having halo or heteroatom;n=0-2;andm=0 or 1.(i) When Y' is P, n is 0 or 1, and m is 1; (ii) When Y' is B, n is 0 and m is 1; (iii) When Y' is S, n is 2 and m is 0; and (iv) When Y' is -CO-Ra-CO-, n and m are 0. The content of compound (A) is 0.01-10 wt.%. Group (a) is preferably methylsilyl, dimethylsilyl, trimethylsilyl, ethylsilyl, ethylmethylsilyl, diethylsilyl, diethylmethylsilyl, and/or triethylsilyl, or fluoromethyl, difluoromethyl, trifluoromethyl, 1-fluoroethyl, 2-fluoroethyl, 1,1-difluoroethyl, 1,2-difluoroethyl, 2,2-difluoroethyl, 1,1,2-trifluoroethyl, 1,2,2-trifluoroethyl, 2,2,2-trifluoroethyl, 1,1,2,2-tetrafluoroethyl, 1,2,2,2-tetrafluoroethyl, and/or pentafluoroethyl group. Compound (A) is tris(trimethylsilyl)phosphate, tris(trimethylsilyl)borate, bis(trimethylsilyl)sulfate, and/or bis(trimethylsilyl)malonate, or tris(trifluoromethyl)phosphate, tris(trifluoromethyl)phosphite, tris(2,2,2-trifluoroethyl)phosphate, and/or tris(2,2,2-trifluoroethyl)phosphite. The nonaqueous solvent contains ethylene carbonate, propylene carbonate, and/or butylene carbonate, or dimethyl carbonate, ethylmethyl carbonate, diethyl carbonate, dipropyl carbonate, dimethoxyethane, diethoxyethane, and/or carboxylate ester. The counter cation of monofluorophosphate or difluorophosphate is lithium, sodium, potassium, magnesium, calcium, and/or NR7R8R9R10. The total content of monofluorophosphate and difluorophosphate is 0.01-10 wt.%.R7-R10=H or optionally substituted 1-12C hydrocarbyl.The electrolyte solution contains cyclic carbonate(s) (0.01-30 wt.%) having unsaturated bond and/or halogen atom. The carbonate having unsaturated bond is vinylene carbonate, 4,5-diphenylvinylene carbonate, 4,5-dimethylvinylene carbonate, and/or vinylethylene carbonate. The cyclic carbonate having halogen atom is fluoroethylene carbonate, 4-(fluoromethyl)-ethylene carbonate, 4,4-difluoroethylene carbonate, and/or 4,5-difluoroethylene carbonate. Preferred Definitions:    M=Si or C.