Method of Manufacturing Electrode for Secondary Battery Using Insulating Composition Including Aqueous Binder Substituted with Non-Aqueous Solvent

A method of manufacturing an electrode for a secondary battery, comprising:

• applying an electrode slurry including an electrode active material, a conductive material, a non-aqueous binder, and a first non-aqueous organic solvent onto one surface or both surfaces of a current collector;
• applying an insulating composition including an aqueous binder dispersed in a second non-aqueous organic solvent, wherein the insulating composition is substantially free of water, so that the insulating composition covers from a portion of a non-coated part of the current collector to a portion of the electrode slurry applied onto the current collector;
• and
• drying the electrode slurry and insulating composition applied onto the current collector,
• wherein the first non-aqueous organic solvent in the electrode slurry and the second non-aqueous organic solvent in the insulating composition are the same or include the same type of non-aqueous organic solvent,
• wherein the application of an electrode slurry and the application of an insulating composition satisfy the following Expression 1:
• 0
• ≤
• T
• ⁢
• 2
• -
• T
• ⁢
• 1
• ≤
• 100
• [
• Expression
• ⁢
• 1
• ]
• in Expression 1,
• T1 refers to the time at which an electrode slurry is discharged onto a current collector from a slot-die coater in the application of an electrode slurry, and
• T2 refers to the time at which an insulating composition is discharged onto a current collector from a slot-die coater in the application of an insulating composition, wherein T1 and T2 are in seconds.