Abstract: A notching apparatus includes a punch that descends to notch an electrode, a holder having one surface in which a mounting groove is provided, the punch having one end inserted into the mounting groove, and a block inserted into the mounting groove together with the punch. When inserted into the mounting groove, the block presses the punch so that the punch comes into close contact with one of inner surfaces of the mounting groove.

Abstract: An apparatus for manufacturing unit cells includes reels, rollers, conveyors, headers, and a cutter. A lower separator sheet is unwound from a lower separator reel. A feeding roller moves the lower separator sheet in a first direction. A conveyor moves a first electrode in a second direction parallel to the first direction. A first header conveys that electrode from the conveyor and onto the lower separator sheet. An upper separator sheet is unwound from an upper separator reel. Another feeding roller moves, in the first direction, a first ordered stack of the lower separator sheet, first electrode, and upper separator sheet. Another conveyor moves a second electrode in the second direction. Another header conveys that electrode from the second conveyor and onto the upper separator sheet. The cutter cuts, at preset intervals, a second ordered stack of the lower separator sheet, first electrode, upper separator sheet, and second electrode.

Abstract: An electrode assembly manufacturing apparatus includes a stack table, a separator supply unit, first and second electrode supply units, and a side sealing device. A stack of a first electrode, a second electrode, and a separator between the first and the second electrode are stackable on the stack table. The separator supply unit is configured for supplying the separator to the stack table. The first electrode supply unit is configured for stacking the first electrode on a section of the separator on the stack table. The second electrode supply unit stacks the second electrode on a further section of the separator on the first electrode. A side sealing device heats at least one side surface of the stack.

Abstract: An electrode assembly includes a stack and a second separator. The stack includes first and second electrodes and a first separator folded in a zigzag configuration and including spacer sections and respective side sections between the spacer sections. The first and the second electrodes are alternately disposed between first separator spacer sections The second separator extends along an upper surface, a lower surface, and at least one pair of opposing side surfaces of the stack. The side sections of the first separator define portions of the side surfaces of the stack on which the first electrode and the second electrode are not disposed. The second separator is bonded to at least one of the side sections.

Abstract: The present invention relates to a method for manufacturing an electrode assembly.

Abstract: A method for manufacturing an electrode assembly comprises: a primary stack manufacturing step in which a first electrode and a second electrode are alternately stacked with a separator on a top surface of a table; a secondary stack manufacturing step in which the first electrode and the second electrode are alternately stacked with the separator on the primary stack so that the second electrode is stacked to be disposed at the lowermost end; a stack rotating step in which the primary stack and the secondary stack are rotated together at an angle of 180° to change positions of the primary stack and the secondary stack; and an electrode assembly manufacturing step in which the first electrode and the second electrode are alternately stacked with the separator on the primary stack so that the second electrode is stacked to be disposed at the lowermost end to manufacture a tertiary stack.