Patent ID: 9136529
Filing Date: 2015-09-15
Classification: H01M,Y02E

Abstract:
1. A method of charging and discharging a non-aqueous electrolyte secondary battery comprising a positive electrode having a positive electrode active material made of a mixture of a lithium-transition metal composite oxide containing at least Ni and Mn as transition metals and a lithium-manganese composite oxide having a spinel structure and not containing Ni and optionally containing, B, Mg, Al, Ti, V, Fe, Cu, Zn, Ga, Y, Zr, Nb, Mo, and In, a negative electrode having a negative electrode active material made of a material capable of intercalating and deintercalating lithium, and a non-aqueous electrolyte, said method comprising: charging said non-aqueous electrolyte secondary battery so that the end-of-charge voltage of said non-aqueous electrolyte secondary battery becomes higher than 4.3 V.