METHOD AND APPARATUS FOR PRE-LITHIATION OF ELECTRODE

The present disclosure relates to a method for pre-lithiation of an electrode, including the steps of: (S1) providing a pre-lithiation reaction system which includes Reaction System 1 including lithium metal, a separator, an electrolyte for pre-lithiation and carbon felt, and Reaction System 2 including the electrolyte for pre-lithiation and an electrode to be pre-lithiated, wherein the lithium metal and the electrode to be pre-lithiated are not in direct contact with each other, and Reaction System 1 and Reaction System 2 communicate with each other; (S2) preparing an electrode including an electrode current collector, and an electrode active material layer formed on at least one surface of the electrode current collector; and (S3) allowing the electrode to pass through Reaction System 2 by a conveying roll to carry out pre-lithiation of the electrode, wherein the electrolyte for pre-lithiation includes an organic material, inorganic material or a mixture thereof capable of oxidation/reduction in the electrolyte. The method for pre-lithiation of an electrode allows homogeneous pre-lithiation on the whole of an electrode and can be carried out continuously during the manufacture of the electrode.