| abstract |
The problems to be solved by the present invention include all of initial high input / output characteristics, excellent electrochemical characteristics in a low temperature environment, and high durability at high temperatures (for example, 40 to 90 ° C.). Another object of the present invention is to provide a non-aqueous lithium storage element that exhibits practically excellent characteristics. In a non-aqueous lithium storage element, a negative electrode active material layer contains a specific sulfur compound, and the total amount of sulfur compounds is 6.0 × 10 −6 mol / g to 2, per unit mass of the negative electrode active material. 000 × 10 −6 mol / g, the non-aqueous electrolyte contains at least two sultone compounds, and the total content of sultone compounds is 0.5% by mass to 15% with respect to the whole non-aqueous electrolyte. % By mass. [Selection figure] None |