Abstract: A flow rate control apparatus for coating multi-division dual layers, including a plurality of slot dies organized into an upper layer and a lower layer, and configured to coat an electrode with a slurry; a pump configured to supply the slurry from a tank to each of the upper layer and the lower layer; a valve at the plurality of slot dies, and configured to divide the slurry supplied from the pump, and to supply the divided slurry to the plurality of slot dies; a flowmeter configured to measure a flow rate of the slurry supplied to the plurality of slot dies; and a processor configured to control the pump and the valve based on the flow rate of the slurry measured by the flowmeter to control a coating amount of the electrode.

Abstract: Various embodiments of the present invention relate to a secondary battery. The technical problem to be solved is to provide the secondary battery which can improve the insulation strength of first and second multi-tabs, by forming the first and second multi-tabs of first and second electrode assemblies symmetrically with respect to each other, and also can improve the insulation strength of the first and second multi-tabs by forming an insulating layer on the first and second multi-tabs of the first and second electrode assemblies.

Abstract: Various embodiments of the present invention relate to a secondary battery. The technical problem to be solved is to provide the secondary battery which can improve the insulation strength of first and second multi-tabs, by forming the first and second multi-tabs of first and second electrode assemblies symmetrically with respect to each other, and also can improve the insulation strength of the first and second multi-tabs by forming an insulating layer on the first and second multi-tabs of the first and second electrode assemblies.

Abstract: A coating apparatus to apply a coating solution onto a base material, including a first body portion, a second body portion spaced-apart by a gap from the first body portion, a coating solution inlet arranged in one region of the second body portion, a coating solution passage connecting the coating solution inlet to said gap, a coating solution outlet arranged at one end of the gap to discharge the coating solution supplied to the coating solution inlet and a gap adjusting arrangement including a plurality of gap adjusting portions arranged on the first body portion to adjust a size of the coating solution outlet, the plurality of gap adjusting portions being arranged in a width direction of the base material.

Abstract: The present invention provides an active material coating apparatus to form an active material layer having a uniform thickness in a width direction of a substrate when forming the active material layer on a substrate.

Abstract: A coating apparatus to apply a coating solution onto a base material, including a first body portion, a second body portion spaced-apart by a gap from the first body portion, a coating solution inlet arranged in one region of the second body portion, a coating solution passage connecting the coating solution inlet to said gap, a coating solution outlet arranged at one end of the gap to discharge the coating solution supplied to the coating solution inlet and a gap adjusting arrangement including a plurality of gap adjusting portions arranged on the first body portion to adjust a size of the coating solution outlet, the plurality of gap adjusting portions being arranged in a width direction of the base material.

Abstract: The present invention provides an active material coating apparatus to form an active material layer having a uniform thickness in a width direction of a substrate when forming the active material layer on a substrate.