Non-aqueous electrolytic solution for lithium secondary battery or lithium ion capacitor, and lithium secondary battery or lithium ion capacitor using the same
摘要
說明書
Therefore, the non-aqueous electrolytic solution according to the first aspect of the present invention and the non-aqueous electrolytic solution according to the second aspect of the present invention are each suitably used as a non-aqueous electrolytic solution of a lithium secondary battery or a lithium ion capacitor, in particular, as a non-aqueous electrolytic solution for a lithium secondary battery or a lithium ion capacitor used in a wide temperature range.
[Lithium Secondary Battery]
In the present description, the term of lithium secondary battery is used as a concept including a so-called lithium ion secondary battery.
The lithium secondary battery of the present invention includes a positive electrode, a negative electrode, the non-aqueous electrolytic solution according to the first aspect of the present invention including a lithium salt as dissolved in a non-aqueous solvent and the non-aqueous electrolytic solution according to the second aspect of the present invention including a lithium salt as dissolved in a non-aqueous solvent. The constituent members such as a positive electrode and a negative electrode other than the non-aqueous electrolytic solution can be used without being particularly limited.
For example, as the positive electrode active material for a lithium secondary battery, there is used a composite metal oxide with lithium containing one or two or more selected from the group consisting of cobalt, manganese and nickel, or a lithium-containing olivine-type phosphate containing one or two or more selected from iron, cobalt, nickel and manganese. These positive electrode active materials can be used each alone or in combinations of two or more thereof.
