Abstract: An electrode sheet defect inspection device includes a vision inspection part configured to inspect defects in each tab part during a traveling process of an electrode sheet on which a plurality of tab parts is formed; a marking part configured to print a defective mark on a selected tab part in response to the tab part being determined to be defective, based on inspection information of the vision inspection part; a tab guide part configured to pass the tab parts when the electrode sheet passes through the marking part and a mark inspection part configured to inspect the defective mark printed on the tab part exposed to an outside through the opening of the tab guide part. The tab guide part has an opening for exposing a partial region of the tab parts traveling to the outside, and the tab guide part includes a transparent region adjacent to the opening.

Abstract: An electrode sheet inspection system includes an inspection unit configured to inspect the external state of an electrode sheet and an ink marking unit configured to mark a portion to be removed on the electrode sheet, wherein the ink marking unit is configured to adjust an ink marking range, whereby it is possible to prevent removal of a mark on a defective portion of an electrode even after a process of notching the electrode sheet. An electrode sheet inspection method using the same is also described.

Abstract: An electrode sheet inspection system includes an inspection unit configured to inspect the external state of an electrode sheet and an ink marking unit configured to mark a portion to be removed on the electrode sheet, wherein the ink marking unit is configured to adjust an ink marking range, whereby it is possible to prevent removal of a mark on a defective portion of an electrode even after a process of notching the electrode sheet. An electrode sheet inspection method using the same is also described.