| 摘要 |
A non-aqueous liquid electrolyte secondary battery comprising a anode electrode and a cathode electrode, capable of intercalating and deintercalating lithium ions, and a non-aqueous liquid electrolyte, having high charging capacity, capable of maintaining excellent characteristics over a long period of time and excellent in discharge capacity retention in particular, is provided. The non-aqueous liquid electrolyte contains at least one of: (i) a compound represented by the general formula (I) below and a saturated cyclic carbonate compound; (ii) a compound represented by the general formula (II) below; and (iii) a compound represented by the general formula (III-1) below. (In the above formula (I), n represents an integer which is greater than or equal to 3, m represents an integer which is greater than or equal to 1, and the sum of n and m is greater than or equal to 5. All or part of the hydrogen atoms may be substituted with a fluorine atom.) (In the above formula (II), X represents —SO2 or —SO—, and R1 to R6 each represent, independently of each other, an unsubstituted alkyl group or halogen-substituted alkyl group.) A-N═C═O   (III-1) (In the above formula (III-1), A represents an element or group other than a hydrogen.)
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