| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-capacity nonaqueous electrolyte secondary battery having a high capacity and good charge/discharge cycle characteristics by containing at least one kind of N-containing organic compound in a nonaqueous electrolyte. SOLUTION: The positive electrode of this nonaqueous electrolyte secondary battery contains a material capable of reversibly storing/discharging lithium, and the negative electrode contains three or more kinds of atoms selected from the 1, 2, 13, 14 group atoms in the periodic table and is mainly made of an amorphous chalcogen compound and/or an amorphous oxide. A nonaqueous electrolyte contains lithium salt, and it contains at least one kind of N- containing organic compound. The nonaqueous electrolyte secondary battery having excellent charge/discharge characteristics and little deterioration of the discharge capacity by repeated charges/discharges can be obtained. |
