| 摘要 |
PURPOSE: A non-aqueous electrolyte secondary battery is provided to prevent the decrease of the cycle property by maintaining the content of ethylene carbonate inside a non-aqueous electrolyte. CONSTITUTION: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte containing electrolyte salt inside a non-aqueous electrolyte solution. The non-aqueous electrolyte contains less than 25~40vol% of ethylene carbonate. The non-aqueous electrolyte uses 0.3~3.0wt% of 1,3-dioxane and 0.3~3.0wt% of dinitrile compound as additives. |
