| abstract |
A nonaqueous electrolyte secondary battery includes: a stacked electrode assembly formed by stacking a plurality of layers of a positive electrode plate and a plurality of layers of a negative electrode plate with a separator interposed therebetween; a nonaqueous electrolyte formed by dissolving LiPF 6 at 1.5 mol/L into a mixed solvent of EC, EMC, and DMC; and an aluminum laminated outer body that stores the stacked electrode assembly and into which the electrolyte is poured. The ratio of the EC, the EMC, and the DMC is 36% by volume, 31% by volume, and 33% by volume, respectively, to the total amount of the mixed solvent. The nonaqueous electrolyte contains LiPF 2 O 2 . |