| abstract |
The present invention provides a non-aqueous electrolyte secondary cell in which degradation of the electrolytic solution or the negative electrode active material is minimized and excellent cycle durability achieved, and a method for manufacturing the same. This non-aqueous electrolyte secondary cell is provided with: a positive electrode capable of doping and de-doping lithium ions; a negative electrode capable of occluding and releasing lithium ions, lithium, or a lithium alloy; and an electrolytic solution containing an organic solvent, a lithium salt electrolyte, and an additive. The positive electrode active material of the positive electrode contains a layered lithium-containing transition metal oxide represented by formula (1) Li 1.5 [Ni a Co b Mn c [Li] d ]O 3 (where a, b, c, and d satisfy 0 < a < 1.4, 0 ≤ b < 1.4, 0 < c < 1.4, 0 < d ≤ 0.5, a + b + c + d = 1.5, and 1.0 ≤ a + b + c < 1.5), and a spinel phase present in a part thereof. The negative electrode active material of the negative electrode contains a carbon-based material in which all or part of the surface thereof is covered with a coating derived from an additive. |