The invention relates to a jaw pair for punching out holes or recesses, preferably in sheet metal parts, the jaw pair being connectable to a device (23) to be operated preferably hydraulically and being designed, for example, as a pivoting jaw pair, wherein a punch (8) is formed on one jaw and a punching opening (6) is formed on the other jaw. To provide an advantageous jaw pair for punching out holes or recesses, preferably in sheet metal parts, it is proposed that a stripper part (10) which is situated outside of an outer contour of the punch (8) in the punching direction is formed in the jaw having the punch (8) and is movable in relation to the punch (8).

The invention relates to a jaw pair for punching out holes or recesses, preferably in sheet metal parts, the jaw pair being connectable to a device (23) to be operated preferably hydraulically and being designed, for example, as a pivoting jaw pair, wherein a punch (8) is formed on one jaw and a punching opening (6) is formed on the other jaw. To provide an advantageous jaw pair for punching out holes or recesses, preferably in sheet metal parts, it is proposed that a stripper part (10) which is situated outside of an outer contour of the punch (8) in the punching direction is formed in the jaw having the punch (8) and is movable in relation to the punch (8).

Discussed is an apparatus for manufacturing an electrode for a secondary battery, an electrode for a secondary battery which is manufactured therethrough, and a secondary battery. The apparatus notches a portion of a non-coating portion of an electrode collector, which is not coated with an electrode active material, in an electrode sheet coated with the electrode active material on the electrode collector to manufacture an electrode tab. The apparatus includes a notching roll that rotates to notch the portion of the non-coating portion, wherein the notching roll includes: a notching cutter provided on a portion of the notching roll, which faces the non-coating portion to notch the electrode sheet; and a roll pad provided on a portion of the notching roll, which faces the electrode active material, the roll pad contacting the electrode sheet when the notching roll rotates to prevent the electrode sheet from being slipped.

Discussed is an apparatus for manufacturing an electrode for a secondary battery, an electrode for a secondary battery which is manufactured therethrough, and a secondary battery. The apparatus notches a portion of a non-coating portion of an electrode collector, which is not coated with an electrode active material, in an electrode sheet coated with the electrode active material on the electrode collector to manufacture an electrode tab. The apparatus includes a notching roll that rotates to notch the portion of the non-coating portion, wherein the notching roll includes: a notching cutter provided on a portion of the notching roll, which faces the non-coating portion to notch the electrode sheet; and a roll pad provided on a portion of the notching roll, which faces the electrode active material, the roll pad contacting the electrode sheet when the notching roll rotates to prevent the electrode sheet from being slipped.

Discussed is a method of manufacturing an electrode, the method including applying an electrode active material to a portion of an electrode collector, the electrode collector having a non-coating portion that is not coated with the electrode active material, and an active material coating portion that is coated with the electrode active material; setting an ablation line on at least one end of the active material coating portion that is contacting the non-coating portion; performing ablation on a boundary line between the non-coating portion and the active material coating portion and an area surrounded by the ablation line while maintaining a state in which the electrode active material is applied; setting a notching line on an ablation area of the electrode collector on which the ablation is performed; and performing notching by using the notching line as a boundary.

An electrode feed unit includes an electrode plate feed unit, and the electrode plate feed unit includes an electrode cutting unit arranged to cut a conductive sheet into electrode plates by a certain length. The electrode cutting unit includes a fixed blade having a fixed cutting blade extending in a direction crossing a conveyance direction of the conductive sheet, a rotary blade of a disk shape having a rotary cutting blade on the radial outer edge, and a rotary blade moving unit arranged to rotate and move the rotary blade along the fixed blade in a state where the rotary cutting blade maintains contact with the fixed cutting blade.

A separating system for separating individual container products from a frame assembly of plastic material, particularly polypropylene, has at least one stamping device (36) that at least partially separates the respective container product from a frame waste. By the stamping device (36) including a free fall body (52) separating the respective frame waste from the associated container product from an initial position during free fall, the separation can be carried out with very high speed (free fall) and additional mechanical components for applying a constraint force on the stamping body during the creating of the separating line can be omitted.

A separating system for separating individual container products from a frame assembly of plastic material, particularly polypropylene, has at least one stamping device (36) that at least partially separates the respective container product from a frame waste. By the stamping device (36) including a free fall body (52) separating the respective frame waste from the associated container product from an initial position during free fall, the separation can be carried out with very high speed (free fall) and additional mechanical components for applying a constraint force on the stamping body during the creating of the separating line can be omitted.

Discussed is an electrode notching device for a secondary battery, the electrode for a secondary battery, which is manufactured therethrough, and a secondary battery. The electrode notching device for the secondary battery, which notches a non-coating portion of an electrode sheet to provide an electrode tab, includes: a pair of notching molds configured to press and notch the electrode sheet; and a movement prevention roller part provided on pressing surfaces of the pair of notching molds to prevent the electrode sheet from moving when the electrode sheet is notched.

Discussed is an electrode notching device for a secondary battery, the electrode for a secondary battery, which is manufactured therethrough, and a secondary battery. The electrode notching device for the secondary battery, which notches a non-coating portion of an electrode sheet to provide an electrode tab, includes: a pair of notching molds configured to press and notch the electrode sheet; and a movement prevention roller part provided on pressing surfaces of the pair of notching molds to prevent the electrode sheet from moving when the electrode sheet is notched.