| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary cell with excellent cycle property, which can obtain high charging and discharging efficiency and high discharging capacity. SOLUTION: For the nonaqueous electrolyte secondary cell comprising a positive electrode and a negative electrode enabled to absorb and release lithium, a nonaqueous electrolyte composed of a solute and an organic solvent, a separator, and an outer casing, the organic solvent is made to contain ethylene sulfide, and a pulse current is added at the initial charging. |
