| 摘要 |
PROBLEM TO BE SOLVED: To enhance charge and discharge characteristics further.SOLUTION: A nonaqueous secondary battery 10 comprises: a positive electrode sheet 13 including a current collector 11 and a positive electrode mixture 12 formed on the current collector; a negative electrode sheet 18 including a current collector 14 and a negative electrode mixture 17 formed on the surface of the current collector; a separator 19 provided between the positive electrode sheet 13 and the negative electrode sheet 18; and an electrolytic solution 20 charged between the positive electrode sheet 13 and the negative electrode sheet 18. As to the current collector 14 of the negative electrode sheet 18, the surface on the side where the negative electrode mixture 17 is formed is at least partially etched or coated with carbon. The negative electrode mixture 17 formed on this surface includes an aromatic compound making dicarboxylic acid anions having an aromatic ring structure, and includes as a negative electrode active material, a lamellar structure having an organic skeleton layer in which one carboxylic acid anion of the dicarboxylic acid anions, and the other carboxylic acid anion are bound at diagonal positions of the aromatic compound, and an alkali metal element layer in which an alkali metal element is coordinated to oxygen included in the carboxylic acid anion.SELECTED DRAWING: Figure 2 |
