| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery which has excellent reliability by suppressing reduction in characteristics caused by elution of metal ions from a positive electrode and elution of the metal ions from metal mixed with foreign matter.SOLUTION: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. An aluminum silicate is arranged on the surface of a negative electrode mixture layer of a negative electrode. The nonaqueous electrolyte contains lithium salt at a density of 1 mol/L or more and 3 mol/L or less. When the nonaqueous electrolyte contains LiPFas lithium salt, the density of LiPFis 0.1 mol/L or more and 0.7 mol/L or less. |
