| abstract |
A non-aqueous electrolyte secondary battery using a negative electrode active material having at least one atom selected from the group consisting of Si atom, Sn atom and Pb atom, having high charge capacity and long-term use A non-aqueous electrolyte secondary battery having excellent characteristics and particularly excellent discharge capacity maintenance rate is obtained. A non-aqueous electrolyte contains at least a carbonate having at least one of an unsaturated bond and a halogen atom and a compound represented by the following general formula (1). (In the formula (1), X represents a halogen atom, an alkyl group or an aryl group. When X is an alkyl group or an aryl group, it may be further substituted with a halogen atom, an alkyl group or an aryl group. Represents an integer of 1 to 6. When n is 2 or more, 2 or more Xs may be the same or different from each other, and two or more Xs are bonded to each other to form a ring. (A structure or a cage structure may be formed.) [Selection figure] None |