ELECTRODE SHEET DRYING APPARATUS CAPABLE OF PREVENTING THERMAL WRINKLES IN NON-COATED PORTION

The present invention relates to an electrode sheet drying apparatus capable of preventing thermal wrinkles in a non-coated portion, and more particularly to an electrode sheet drying apparatus for drying an electrode sheet including a pair of coated portions each having an electrode active material applied to one surface of metal foil and a non-coated portion located between the pair of coated portions, the non-coated portion having no electrode active material applied thereto, the electrode sheet drying apparatus including a chamber configured to dry the electrode sheet therein, the chamber having a rectangular structure, a heating means provided at an upper part of the chamber, the heating means being configured to adjust the temperature in the chamber to a temperature necessary to dry the electrode sheet, and at least one guide roll configured to guide movement of the electrode sheet in the chamber and to maintain a tension of the electrode sheet, the apparatus being configured such that a part of the electrode sheet is moved in a state of being spaced apart from the guide roll by a predetermined distance.