The present invention provides a non-aqueous electrolyte secondary cell that has high voltage, high capacity and excellent high-temperature cycle characteristics at a low cost.The non-aqueous electrolyte secondary cell according to the present invention is characterized by that: the positive electrode active material is LiNiaCobMncO2 (wherein, a+b+c=1, 0.3≦a≦0.6, 0.3≦b≦0.6, 0.1≦c≦0.4) containing 0.4 mass % or less of a water-soluble alkali; the non-aqueous electrolyte contains LiPF6 as a main electrolyte salt and 0.01 mass % or more and 0.5 mass % or less of LiBF4; and the non-aqueous electrolyte further contains 1.5 to 5 mass % of vinylene carbonate.