| abstract |
The positive electrode of the non-aqueous electrolyte secondary battery has (A) lithium-manganese composite oxide and (B1) specific surface area X of less than 0.3 m 2 / g, and LiNiO 2 , Li 2 NiO 2 , LiNi 2 O 4 , Li 2 Ni 2 O 4 and LiNi 1-x M x O 2 (0 < x ≦ 0.5, M represents one or more metal elements selected from the group consisting of Co, Mn, A1, Fe, Cu, and Sr) It contains at least one lithium-nickel composite oxide selected from the group. Such a non-aqueous electrolyte secondary battery is excellent in battery characteristics, particularly in charge / discharge cycle characteristics, storage characteristics, and safety. |