Patent ID: 9149853
Filing Date: 2015-10-06
Classification: B21D,B26D,H01M,Y02E,Y02P

Abstract:
1. A device for notching, at an interval of a unit electrode, a continuous electrode sheet in which an electrode active material is applied to one or both surfaces thereof, to form a plurality of unit electrodes from the electrode sheet, the device comprising: a press to repeatedly move backwards together with the electrode sheet according to a position of the continuously transferred electrode sheet and then return to a position in the process of pressing notches on the top and the bottom of the electrode sheet; and a drawing member arranged at the rear of the press based on a feed direction of the electrode sheet, the drawing member drawing and transporting the electrode sheet by one pitch, a size corresponding to the unit electrode according to operation of the press, wherein the drawing member comprises two or more grippers to draw the electrode sheet by gripping, wherein, when one of the grippers draws and transports the electrode sheet, the remaining grippers move to a position for drawing, and wherein tension applied to the electrode sheet for transport of the electrode sheet is supplied only from the drawing member in the process of pressing notches while the press moves backwards.