Abstract: An apparatus for manufacturing a pouch-type rechargeable battery includes a preforming portion forming a folding groove in a portion of a protrusion of the pouch-type rechargeable battery, a folding portion disposed on a rear end of the preforming portion and folding the protrusion along the folding groove, a rolling portion disposed on a rear end of the folding portion and pressing the folded protrusion, and a pressing portion disposed on a rear end of the rolling portion and fixing the folded protrusion.

Abstract: A secondary battery, an apparatus for processing the secondary battery and a method of manufacturing the secondary battery are provided. The secondary battery includes an electrode assembly including an electrode tab, and an exterior material accommodating the electrode assembly and including a sealing portion formed around the electrode assembly. The sealing portion includes a tab sealing portion formed at an area where the electrode tab is drawn out, and the tap sealing portion includes repeating patterns.

Abstract: A battery cell includes an electrode assembly, an electrode tab drawn out from one surface of the electrode assembly, and an electrode lead to which the electrode tab is coupled, wherein a bonding portion in which the electrode tab and the electrode lead are bonded to each other is disposed to face the electrode assembly, and wherein, in the bonding portion, an end of the electrode tab and an end of the electrode lead are disposed to be oriented in the same direction.

Abstract: A degassing system of a pouch for a secondary battery is provided. In the degassing system, after inhaling gas regardless of the size of a cell pocket, the gas may be processed, and the convenience of work may be increased by setting the period of degassing time or the amount of gas to be discharged according to the size of a pouch, and an abnormality in a suction line for degassing may be automatically detected according to a comparison value by comparing the amount of discharged gas with a reference value preset by each pouch size.

Abstract: Provided are an electrode comprising a coated portion that is coated with an active material; an uncoated portion that is not coated with the active material; and at least one selected from the group consisting of a first straight section formed by cutting out a part of the boundary region between the coated portion and the uncoated portion and a second straight section formed by cutting out an edge of the coated portion; an electrode assembly comprising the same; and a manufacturing method of the electrode assembly.

Abstract: A battery cell and a method of manufacturing the same are disclosed. The battery cell is a battery cell including an electrode assembly and a pouch unit accommodating the electrode assembly. The battery cell comprises a cell body including an accommodation portion accommodating the electrode assembly in the pouch unit and the electrode assembly, a cell edge forming a perimeter of the battery cell, and a cell edge portion formed between the cell edge and the cell body. The pouch unit is made of a pouch sheet. The cell edge portion includes a first pouch edge portion and a second pouch edge portion facing each other in the pouch sheet, and a convex portion that is convex in a thickness direction of the cell edge portion.

Abstract: According to the present disclosure, there are provided an electrode plate including an active material portion in which an active material is formed on a substrate and a non-coated portion in which the active material is not formed, wherein the non-coated portion includes a first non-coated portion in which a non-coated portion tab is formed and a second non-coated portion extending from the first non-coated portion in a width direction of the active material portion, and an area of the first non-coated portion and an area of the second non-coated portion satisfy Expression 1 (described in the detailed description), and an electrode assembly and a secondary battery including the same.

Abstract: The present disclosure relates to a press forming apparatus, comprising: a die in which a molded portion is formed by being recessed inwardly from an upper surface thereof; a stripper for fixing an object to be formed disposed on the die; a punch provided above the die to be movable upwardly and downwardly, and inserted into the molded portion when descending, to form an accommodating portion in the object to be formed, wherein a surface of the molded portion, in contact with the object to be formed, is curved, and the punch comprises a vent for blowing air onto an upper surface of the object to be formed. According to the present disclosure, a molded portion of the pouch film may be uniformly stretched, and occurrence of cracks may be prevented, so that workability and productivity may be improved. Furthermore, long-term reliability of the secondary battery may be secured.

Abstract: A pouch-type secondary battery includes an electrode assembly including a first electrode plate, a separator, and a second electrode plate; and a pouch film in which the electrode assembly is accommodated, wherein the pouch film includes a first side sealing portion from which a negative electrode lead connected to the electrode assembly protrudes, a second side sealing portion from which a positive electrode lead connected to the electrode assembly protrudes, and an upper sealing portion having both end portions connected to the first and second side sealing portions, and the pouch film includes a folded portion disposed on an end of the first side sealing portion and an end of the second side sealing portion, and folded toward a bottom portion of the pouch film, wherein the folded portion is folded in one direction.

Abstract: A ventilation device for a secondary battery includes a frame including a first frame and a second frame, and a connector connecting the first frame and the second frame to each other and including a slit portion. Each of the first frame and the second frame includes a facing surface that faces each other, and at least one of the first frame and the second frame includes a ventilation guiding portion recessed from the facing surface. The frame includes a terrace expansion restraining portion including an inclined surface structured to support a pouch terrace portion of the secondary battery and formed at a surface of the frame adjacent to a surface including the ventilation guiding portion. A ventilation control portion is formed to provide a space between the first frame and the second frame to be connected to the ventilation guiding portion.

Abstract: A ventilation device for a secondary battery includes a frame including a first frame and a second frame, and a connector connecting the first frame and the second frame to each other and including a slit portion formed therein. Each of the first frame and the second frame has a facing surface that faces each other, and at least one of the first frame and the second frame includes a ventilation guiding portion recessed from the facing surface, and a ventilation control portion is formed to provide a space between the first frame and the second frame and to be connected to the ventilation guiding portion.

Abstract: A battery cell includes: an electrode assembly; a battery case accommodating the electrode assembly and an electrolyte; and a gas discharging portion disposed between the electrode assembly and the battery case, and opening and closing a flow path based on pressure within the battery case, wherein the gas discharging portion includes: a moving member being moved in the flow path; a plurality of elastic members each elastically supporting the moving member; and a plurality of support members each disposed between the moving member and the elastic member, and in point contact with the moving member.

Abstract: The present invention relates to a multi-microorganism detection system, and more particularly, to a multi-microorganism detection system using a dielectrophoresis force. Provided is a rapid and accurate multi-microorganism detection system. Microorganisms are concentrated at a high throughput using DEP after synthesizing the microorganisms and fluorescent magnetic particles, and when a complex in which the fluorescent magnetic particles are bound to the microorganisms passes through a detection unit by moving only the microorganisms to the detection unit after separating the magnetic particles from the complex (i.e., the microorganisms to which the magnetic particles are bound) using a DEP force, a fluorescence signal of a specific wavelength band is generated according to the type of the fluorescent magnetic particle and the concentration of the microorganisms according to the type of microorganism is measured by measuring and analyzing the fluorescence signal.

Abstract: The present disclosure relates to a microorganism detection apparatus using a dielectrophoresis (DEP) force.

Abstract: A degassing system of a pouch for a secondary battery is provided. In the degassing system, after inhaling gas regardless of the size of a cell pocket, the gas may be processed, and the convenience of work may be increased by setting the period of degassing time or the amount of gas to be discharged according to the size of a pouch, and an abnormality in a suction line for degassing may be automatically detected according to a comparison value by comparing the amount of discharged gas with a reference value preset by each pouch size.

Abstract: A degassing device of a pouch for a secondary battery and a degassing device using the same are provided. The degassing apparatus includes a separation unit including an adsorption plate adsorbing at least one surface of the pouch, and forming a space inside of the pouch by pulling the adsorption plate, and a gas removal unit installed on the adsorption plate, piercing the pouch with a needle having a gas discharge path therein, and removing gas from the pouch through the gas discharge path.