Pre-lithiation-pre-sodiation method of anode electrodes, pre-sodiated-pre-lithiated anode, and lithium secondary battery comprising the same

摘要

Preparing a negative electrode including a negative electrode current collector and a negative electrode active material layer formed on at least one surface of the negative electrode current collector; Forming a lithium metal layer by applying and drying a composition including a lithium metal powder, a polymeric binder, and a dispersion medium on the negative electrode active material layer; Forming a sodium metal layer by applying and drying a composition including sodium metal powder, a polymeric binder, and a dispersion medium on the lithium metal layer; And immersing the negative electrode on which the lithium metal layer and the sodium metal layer are formed in an electrolytic solution for all-lithium-presodiumization; the all-lithium-to-sodiumization method of the negative electrode including, the all-lithium-presodiumization negative electrode, and the all lithium-to-sodium A lithium secondary battery including a cathode is presented.