Abstract: A slot die coating apparatus according to one embodiment of the present disclosure includes: a slot die containing a first die block and a second die block, and a sensor unit for measuring the flow rate of an electrode active material slurry which is discharged through a discharge port formed by the coupling of the first die block and the second die block, wherein the sensor unit is formed inside the first die block, and the sensor unit is connected to the discharge port via an energy dissipation part and an energy absorption part.

Abstract: Disclosed is an electrode assembly comprising two or more electrodes and a separator disposed between the electrodes, wherein the separator is provided a coating part having a color on a surplus part that is not in contact with the electrodes, and colors of the coating parts provided on the neighboring separators thereto are different from each other.

Abstract: A battery manufacturing device for manufacturing a cylindrical battery by folding a positive electrode tab connected to a top cap includes a jig that makes a pendulum swing and presses a positive electrode tab; an adjusting member that forms a turning radius of the pendulum swing; and a folding knife that presses a folding part of the positive electrode tab. A method of using the battery manufacturing device is also provided.

Abstract: The present invention relates to an electrode assembly and an inspection method therefor, whereby tab folding and alignment of an electrode may be accurately checked. The electrode assembly, according to one embodiment, has a structure in which at least one unit cell is laminated, the unit cell having a structure of a first electrode/a separator/a second electrode/a separator/a third electrode, wherein the first electrode and the third electrode may each comprise a tab protruding toward the outer periphery of one side, and the second electrode may comprise a tab protruding toward the outer periphery of the other side facing the one side.

Abstract: A cylindrical battery in which an electrode assembly is housed in a cylindrical can includes a cap assembly covering an upper opening of the cylindrical can; and a gasket disposed in a space between the cylindrical can and the cap assembly. The gasket is disposed on a crimping part formed by processing an end part of the cylindrical can to be bent, and an exposed part of the gasket protruded outside from a space between the cylindrical can and the cap assembly covers a trimming part of the cylindrical can.

Abstract: An electrode assembly has a structure in which a plurality of electrodes, from each of which an electrode tab protrudes, is stacked, wherein the electrodes are coupled to each other by welding the electrode tabs to each other, the electrode tabs are coupled to an electrode lead, the electrode lead wraps the electrode tabs by including an electrode lead main body with a first surface coupled to the upper surface of the electrode tabs, a second surface bent at a first bent portion in a state of being connected to the first surface so as to be coupled to a lower surface of the electrode tabs, and a third surface bent at a second bent portion in a state of being connected to the second surface and configured to be withdrawn outside a battery case, and the electrode tabs are coupled to the electrode lead by clinching.