BATTERIE SECONDAIRE AU LITHIUM PRÉSENTANT DE MEILLEURES CARACTÉRISTIQUES DE STOCKAGE À HAUTE TEMPÉRATURE

摘要

The present invention relates to a lithium secondary battery which includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution, wherein the positive electrode includes a positive electrode active material represented by Formula 1, and the non-aqueous electrolyte solution includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a mixed additive which includes lithium difluorophosphate, tetravinylsilane, and a sultone compound in a weight ratio of 1:0.05:0.1 to 1:1:1.5:        [Formula 1]     Li(Ni