TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The negative electrode comprises negative electrode active material which consists of metallic element and/or semimetal elements which can occlude-discharge carbon material, lithium metal, or lithium ion. The electrode active material consists of silicon and tin as constituent element.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The compound (1) is compounds of formula C2H5-O-C(=O)-O-C2H4-O-C(=O)-O-C2H5 (1-1), CH3-O-C(=O)-O-C2H4-O-C(=O)-O-CH3 (1-2), C2H5-O-C(=O)-O-CH2-O-C(=O)-O-C2H5 (1-3), CH3-O-C(=O)-O-C3H6-O-C(=O)-O-CH3 (1-4), or CH3-O-C(=O)-O-C4H8-O-C(=O)-O-CH3 (1-5). The compound (2) is compounds of formula CH3-C(=O)-O-C2H4-O-C2H4-O-C(=O)-CH3 (2-1), C3H7-C(=O)-O-C2H4-O-C2H4-O-C(=O)-C3H7 (2-2), C4H9-C(=O)-O-C2H4-O-C2H4-O-C(=O)-C4H9 (2-3), CH3-C(=O)-O-C2H4-O-C2H4-O-C2H4-O-C(=O)-CH3 (2-4), or C3H7-C(=O)-O-C2H4-O-C2H4-O-C2H4-O-C(=O)-C3H7 (2-5). The compound (5) is compounds of formula CH2=CH-CH2-O-C(=O)-C(=O)-O-CH2-CH=CH2 (5-1), CHC-CH2-O-C(=O)-C(=O)-O-CH2-CCH (5-2), CH3-O-C(=O)-C(=O)-O-CH2-CH=CH2 (5-3), C2H5-O-C(=O)-C(=O)-O-CH2-CH=CH2 (5-4), or CH2=CH-O-C(=O)-C(=O)-O-CH=CH2 (5-5). The compound (6) is compounds of formula CH2=CH-S(=O)(=O)-O-CH2-CCH (6-1), C2H5-S(=O)(=O)-O-CH2-CCH (6-2), CH2=CH-S(=O)(=O)-O-C2H5 (6-3), C2H5-S(=O)(=O)-O-CH2-CH=CH2 (6-4), or CH2=CH-S(=O)(=O)-O-CH3 (6-5). The electrolyte solution contains compound of formula R11-S(=O)(=O)-O-R12-O-S(=O)(=O)-R13 (7). The compound (7) is compound of formula CH3-S(=O)(=O)-O-C4H8-O-S(=O)(=O)-CH3 (7-1), CH3-S(=O)(=O)-O-C2H4-O-S(=O)(=O)-CH3 (7-2), CH3-S(=O)(=O)-O-CH2-O-S(=O)(=O)-CH3 (7-3), C2H5-S(=O)(=O)-O-CH2H4-O-S(=O)(=O)-C2H5 (7-4), or C3H7-S(=O)(=O)-O-C2H4-O-S(=O)(=O)-C3H7 (7-5).R11,R13=alkyl, alkenyl, alkynyl, aryl or heterocyclic group, alkyl, alkenyl or alkynyl group substituted by aromatic hydrocarbon group or alicyclic hydrocarbon group, or halogenated group alkyl, alkenyl, alkynyl, aryl or heterocyclic group; andR12=bivalent group containing alkylene, arylene, arylene or alkylene, bivalent group of 2-12C alkylene, ether bond, or halogenated group.Preferred Composition: The content of compounds (1)-(4) in electrolyte solution is 0.001-2 wt.%. The content of compounds (5) and (6) in electrolyte solution is 0.01-10 wt.%.