Patent ID: 8603196

Claim:
A method for manufacturing a lithium secondary battery, the method comprising steps of: forming, on a negative electrode current collector, a negative electrode active material layer containing at least one element selected from the group consisting of silicon, germanium, and tin; preparing a negative electrode by forming a lithium metal layer on the negative electrode active material layer; preparing a positive electrode having a configuration in which a positive electrode active material layer containing a composite oxide represented by a general formula Li 1-x MO 2 , where 0.2≦x≦0.6, and M includes at least one transition metal selected from the group consisting of cobalt, nickel, and manganese, is formed on a positive electrode current collector; and assembling a lithium secondary battery from the negative electrode, the positive electrode, and a separator, wherein in the step of forming the lithium metal layer, the lithium metal layer is formed on the negative electrode active material layer so that the lithium metal layer contains an amount of lithium exceeding an amount of lithium capable of compensating an irreversible capacity of the negative electrode active material layer.