| 摘要 |
This nonaqueous electrolyte secondary battery comprises: a positive electrode (10) that contains, as a positive electrode active material, lithium manganese oxide; a negative electrode (20) that contains, as a negative electrode active material, an Li-Al alloy or an SiOX (0 ≤ X < 2), the surface of which is at least partially covered by carbon; and an electrolyte solution (50) that contains, as organic solvents, propylene carbonate (PC), ethylene carbonate (EC) and dimethoxyethane (DME) at a volume ratio {PC:EC:DME} within the range of {0.5-1.5:0.5-1.5:1-3}, while containing, as a supporting salt, at least one of lithium bis(fluorosulfonyl)imide (LiFSI) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in a total amount of 0.6-1.4 (mol/L). |
