LITHIUM ION STORAGE BATTERY, AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide: a lithium ion storage battery with a high capacity-keeping rate; a lithium ion storage battery arranged to have a longer life; and a method for manufacturing a lithium ion storage battery having a high capacity-keeping rate.SOLUTION: A lithium ion storage battery comprises: a positive electrode; a negative electrode; and an electrolytic solution. The negative electrode has a coating on its surface; and the coating has a lithium oxide. The electrolytic solution may have LiTFSA or LiFSA. A method for manufacturing a lithium ion storage battery comprises: the first step of sealing the positive electrode, the negative electrode and the electrolytic solution in the outer sheath; and the second step of holding the outer sheath having the positive electrode, the negative electrode and the electrolyte therein at a temperature of 70°C or higher for 24 hours or longer after the first step.SELECTED DRAWING: Figure 1