| abstract |
An electrode assembly including a cathode, an anode, and a separator interposed between the cathode and the anode; A nonaqueous electrolyte solution for impregnating the electrode assembly; And a battery case including the electrode assembly and the nonaqueous electrolyte, wherein the negative electrode includes a negative electrode current collector and a lithium metal layer formed on at least one surface of the negative electrode current collector. When the charge / discharge conditions of the secondary battery are charged in a pressurized state, discharged in an unpressurized state or a pressurized state, and discharged in the pressurized state, the lithium metal secondary battery in which the pressurized pressure during discharge is controlled to be smaller than the pressurized pressure during charging. And a battery module including the same. |