A negative electrode, comprising: a current collector; a negative electrode active material layer disposed on the current collector; a first layer disposed on the negative electrode active material layer and containing Li; and a second layer disposed on the first layer and containing an inorganic material, the inorganic material being at least one selected from the group consisting of Al 2 O 3 , SiO 2 and ZrO 2 , wherein a loading amount of the first layer satisfies Equation 1 below: 0.65 × x 1 − y 1 < loading amount of the first layer < 0.95 × x 1 − y 1 , in Equation 1, x 1 is a charge loading amount of the negative electrode active material layer, y 1 is a discharge loading amount of the negative electrode active material layer, units of the loading amount of the first layer, the charge loading amount and the discharge loading amount are mAh/cm 2 , and the charge loading amount and the discharge loading amount are capacities per unit area measured in a half-cell which includes a lithium metal electrode and an electrode including the negative electrode active material layer, wherein the charge loading amount is a capacity per unit area of the half-cell when a charging current decreases to 0.005C after the half-cell being charged at a constant current (CC) until a potential difference of the electrode including the negative electrode active material layer with respect to the lithium metal electrode becomes 0.005V, and then charged at a constant voltage (CV), and the discharge loading amount is a difference between the capacity per unit area of the half-cell and the charge loading amount when a potential difference of the electrode including the negative electrode active material with respect to the lithium metal electrode while the half-cell is discharged at a constant current becomes 1.5V. a current collector; a negative electrode active material layer disposed on the current collector; a first layer disposed on the negative electrode active material layer and containing Li; and a second layer disposed on the first layer and containing an inorganic material, the inorganic material being at least one selected from the group consisting of Al 2 O 3 , SiO 2 and ZrO 2 , wherein a loading amount of the first layer satisfies Equation 1 below: 0.65 × x 1 − y 1 < loading amount of the first layer < 0.95 × x 1 − y 1 , in Equation 1, x 1 is a charge loading amount of the negative electrode active material layer, y 1 is a discharge loading amount of the negative electrode active material layer, units of the loading amount of the first layer, the charge loading amount and the discharge loading amount are mAh/cm 2 , and the charge loading amount and the discharge loading amount are capacities per unit area measured in a half-cell which includes a lithium metal electrode and an electrode including the negative electrode active material layer, wherein the charge loading amount is a capacity per unit area of the half-cell when a charging current decreases to 0.005C after the half-cell being charged at a constant current (CC) until a potential difference of the electrode including the negative electrode active material layer with respect to the lithium metal electrode becomes 0.005V, and then charged at a constant voltage (CV), and the discharge loading amount is a difference between the capacity per unit area of the half-cell and the charge loading amount when a potential difference of the electrode including the negative electrode active material with respect to the lithium metal electrode while the half-cell is discharged at a constant current becomes 1.5V. <EOS>