An apparatus and method for manufacturing a notched corner board is disclosed. The method includes cutting bent board stock into fixed lengths; forming a slit in or near an end of the corner board; and bending/folding a part of the corner board between the end and the slit to create a notch or flap in the corner board. The apparatus includes one or more cutting tools configured to form a slit in or near a first end of the corner board, a support block configured to support the corner board as the slit is formed, one or more rollers configured to move the corner board towards the cutting tool(s), a frame to which the cutting tool(s), the support block, and the roller(s) are directly or indirectly attached, a motor, and a punch. The motor controls movement of the punch to form the notch in the corner board.

Discussed is an apparatus for notching an electrode sheet for an electrode tab, the apparatus including: a transfer unit including first and second transfer rollers to continuously transfer the electrode sheet at regular intervals; a jig unit disposed between the first and second transfer rollers, and supporting a non-coating portion of the electrode sheet; and a notching unit to notch the non-coating portion supported on the jig unit, wherein the jig unit includes: a rotation member provided between the first and second transfer rollers and rotated in a direction perpendicular to a transfer direction of the electrode sheet; and two or more jigs provided on an outer circumferential surface of the rotation member to support the non-coating portion disposed between the first and second transfer rollers.

Discussed is an apparatus for notching an electrode sheet for an electrode tab, the apparatus including: a transfer unit including first and second transfer rollers to continuously transfer the electrode sheet at regular intervals; a jig unit disposed between the first and second transfer rollers, and supporting a non-coating portion of the electrode sheet; and a notching unit to notch the non-coating portion supported on the jig unit, wherein the jig unit includes: a rotation member provided between the first and second transfer rollers and rotated in a direction perpendicular to a transfer direction of the electrode sheet; and two or more jigs provided on an outer circumferential surface of the rotation member to support the non-coating portion disposed between the first and second transfer rollers.

A notching mold for molding a non-coated portion of an electrode base material, wherein the non-coated portion, is formed on each of two ends of a coated portion, includes: a main mold having an upper mold and a lower mold, parallel to each other, and are slidable close to or away from each other. A first auxiliary mold having auxiliary upper and lower molds coupled to the upper and lower molds, respectively, is configured so that the non-coated portion on one end of the electrode base material is disposed at a processible position. A second auxiliary mold having auxiliary upper and lower molds coupled to the upper and lower molds, respectively, is configured so that, when the electrode base material is input into the main mold, the non-coated portion on the other end of the electrode base material is disposed at a processible position.

A notching mold for molding a non-coated portion of an electrode base material, wherein the non-coated portion, is formed on each of two ends of a coated portion, includes: a main mold having an upper mold and a lower mold, parallel to each other, and are slidable close to or away from each other. A first auxiliary mold having auxiliary upper and lower molds coupled to the upper and lower molds, respectively, is configured so that the non-coated portion on one end of the electrode base material is disposed at a processible position. A second auxiliary mold having auxiliary upper and lower molds coupled to the upper and lower molds, respectively, is configured so that, when the electrode base material is input into the main mold, the non-coated portion on the other end of the electrode base material is disposed at a processible position.

A method of manufacturing an irregular electrode includes forming a first electrode line by continuously coating a first electrode slurry on a metal sheet, forming at least one second electrode line formed with a dotted line shape including uncoated portions positioned in parallel to the first electrode line by intermittently coating a second electrode slurry on the metal sheet that does not overlap the first electrode line, and forming the irregular electrode by notching the metal sheet with an irregular shape including the second electrode line and the first electrode line except for the uncoated portions of the at least one second electrode line.

A method of manufacturing an irregular electrode includes forming a first electrode line by continuously coating a first electrode slurry on a metal sheet, forming at least one second electrode line formed with a dotted line shape including uncoated portions positioned in parallel to the first electrode line by intermittently coating a second electrode slurry on the metal sheet that does not overlap the first electrode line, and forming the irregular electrode by notching the metal sheet with an irregular shape including the second electrode line and the first electrode line except for the uncoated portions of the at least one second electrode line.

Discussed is a notching apparatus and method for a secondary battery. The notching apparatus includes: a notching unit notching a portion of an electrode that is continuously supplied; a drying unit drying the electrode while the electrode discharged from the notching unit passes therethrough; and a collecting unit collecting the electrode discharged from the drying unit, wherein the drying unit includes a heating body provided with a drying space that is a passage through which the electrode passes therein, and lamp parts mounted on the heating body to irradiate infrared rays onto a surface of the electrode while the electrode moves through the drying space.

Discussed is an including a transfer unit transferring an electrode sheet having a plurality of notching grooves formed in a side surface thereof to a cutting point via a measuring point, wherein, when a front notching groove which is disposed at a front end in the electrode sheet is passing through the cutting point, a notching groove disposed in a rear end of the front notching groove is configured to pass through the measuring point; a detection unit at the measuring point to detect the notching groove passing through the measuring point and generating a notching groove detection signal; and a cutting unit at the cutting point to cut the electrode sheet according to the notching groove detection signal generated by the detection unit.

Discussed is an including a transfer unit transferring an electrode sheet having a plurality of notching grooves formed in a side surface thereof to a cutting point via a measuring point, wherein, when a front notching groove which is disposed at a front end in the electrode sheet is passing through the cutting point, a notching groove disposed in a rear end of the front notching groove is configured to pass through the measuring point; a detection unit at the measuring point to detect the notching groove passing through the measuring point and generating a notching groove detection signal; and a cutting unit at the cutting point to cut the electrode sheet according to the notching groove detection signal generated by the detection unit.