| abstract |
PROBLEM TO BE SOLVED: To provide a non-aqueous solvent type secondary battery having a large initial charge / discharge capacity and excellent high temperature charge / discharge characteristics. A positive electrode including a positive electrode active material capable of reversibly occluding and releasing lithium, a negative electrode including a negative electrode active material capable of reversibly occluding and releasing lithium, and a non-aqueous solvent electrolyte. In the non-aqueous solvent secondary battery, in the non-aqueous solvent electrolyte, (1) a cyclic acid anhydride, and (2) an aromatic compound having at least one electron donating group, Containing. The electron donating group is at least one selected from an alkyl group, an alkoxy group, an alkylamino group, and an amine, and the alkyl group, the alkoxy group, and the alkylamino group are halogen-substituted and alicyclic. Including. [Selection] Figure 1 |