Abstract: Discussed is an electrode assembly manufacturing method including an operation of stacking an electrode and separator to form an electrode stack and an operation of laminating the electrode stack while heating the electrode stack in order to manufacture an electrode assembly having increased force of coupling between the electrode and the separator while preventing damage to the electrode assembly.

Abstract: A method of manufacturing a unit cell having a negative electrode, a separator, and a positive electrode are stacked and placed between guide rollers. One of the positive electrode and the negative electrode. The separator is coated with a binder, and the separator is dipped in a solvent to soften a cured binder before the separator is put between the guide rollers. An apparatus for manufacturing a unit cell includes a reservoir in which at least two or more transfer rollers that rotate while the separator passes therethrough are mounted, and a solvent is stored at a predetermined level; and a chamber into which the separator passing through a reservoir is put together with the positive electrode and the negative electrode. Guide rollers are disposed so that the negative electrode and the positive electrode move to both surfaces of the separator, respectively.

Abstract: An electrode assembly, a manufacturing method, an ultrasonic cutting device, a cylindrical battery including the electrode assembly, a battery pack and a vehicle including the same are provided. In the electrode assembly, two electrodes and a separator interposed therebetween are wound about an axis, at least one of the electrodes includes an uncoated portion provided at a long side end, a winding turn region of the uncoated portion is provided at one end of the electrode assembly, the winding turn region includes a cut portion and a bent portion alternately disposed along a circumferential direction of the electrode assembly, an axial height of the cut portion is smaller than an axial height of the bent portion, the bent portion includes a plurality of uncoated portion flags, and the plurality of uncoated portion flags overlap along and axial direction to define a bending surface region.

Abstract: An electrode assembly includes electrodes and a first separator sheet in which the electrodes and first separator sheet portions of the first separator sheet are alternately stacked. The electrode comprises a first electrode and a second electrode. The first separator sheet has a zigzag shape formed by being folded at least twice. A length of the second electrode is shorter than a length of the first electrode. the electrode assembly includes a molding member located between a first section of the first separator sheet wrapping the second electrode and a first outer side surface of the electrode assembly and between the second electrode and a second outer side surface of the electrode assembly.

Abstract: The present disclosure relates to a method for manufacturing a separator for an electrochemical device, which includes (S1) preparing a coating slurry including a polymer binder, inorganic particles, and a dispersion medium; (S2) heating at least one surface of a porous substrate; and (S3) applying the coating slurry prepared in the step (S1) to the at least one surface of the porous substrate heated in the step (S2) to form a porous coating layer, wherein the porous coating layer includes an area, where the polymer binder is filmed, in at least a portion of the surface in contact with the porous substrate.

Abstract: An apparatus for manufacturing an electrode assembly includes a separator supply unit, a table, a separator guide, and a pair of upper adhesive supply units. The separator supply unit is configured for supplying a separator sheet from which a separator is formed. The table is configured for supporting an electrode and a portion of the separator sheet. The separator guide is configured for guiding the separator sheet to fold in a particular folding direction. The pair of upper adhesive supply units are configured for applying an adhesive to at least a part of an uppermost electrode supported by the table. The separator guide and the pair of upper adhesive supply units are configured for translation over and relative to the table. The electrode assembly is manufactured by a process using the apparatus.

Abstract: An apparatus for manufacturing an electrode assembly includes a separator supply unit, a table, a separator guide, and a pair of upper adhesive supply units. The separator supply unit is configured for supplying a separator sheet from which a separator is formed. The table is configured for supporting an electrode and a portion of the separator sheet. The separator guide is configured for guiding the separator sheet to fold in a particular folding direction. The pair of upper adhesive supply units are configured for applying an adhesive to at least a part of an uppermost electrode supported by the table. The separator guide and the pair of upper adhesive supply units are configured for translation over and relative to the table. The electrode assembly is manufactured by a process using the apparatus.

Abstract: An electrode assembly according to one embodiment of the present disclosure includes an electrode assembly in which electrodes and separator sheets are alternately stacked in a Z-folding type, wherein the electrode includes a first electrode and a second electrode, wherein the separator sheet has a zigzag shape formed by being folded at least twice, wherein a length of the second electrode is smaller than a length of the first electrode, and wherein an adhesive member is located between either one of both side surfaces of the electrode assembly and the second electrode.

Abstract: An electrode assembly includes alternately stacked electrodes and separator sheet portions of a separator sheet. The electrodes include a first and second electrodes. The separator sheet has a zigzag shape. The second electrode is shorter than the first electrode. A side surface wrapped by the separator sheet between opposing side surfaces of the first electrode and a side surface wrapped by the separator sheet between opposing side surfaces of the second electrode are respectively spaced apart from the separator sheet. An opposite side surface between the opposing side surfaces of the first electrode protrudes further than the separator sheet from the side surface of the second electrode. A separation distance between the separator sheet and the side surface of the second electrode is equal to or shorter than a distance by which the first electrode protrudes further than the second electrode from the side surface of the second electrode.

Abstract: Disclosed are a pouch-shaped battery case including an upper case and a lower case sealed to one another, the upper case and the lower case made of a laminate sheet comprising a metal layer and a resin layer, at least one of the upper case and the lower case having a concave unit for receiving an electrode assembly, the upper case and the lower case being sealed at all corners thereof located along the outer edge of the concave unit, a middle of a first side surface of each of the upper case and the lower case having a non-sealed portion for gas discharge, the first side surface being adjacent to a second side surface of each of the upper case and the lower case through which an electrode terminal extends, a method of manufacturing the pouch-shaped battery case, and a sealing block for manufacturing the pouch-shaped battery case.

Abstract: An apparatus for manufacturing the secondary battery includes a first measurement part photographing unit cells, which are continuously transferred, to measure a position of a first electrode having a relatively large size of the first electrode and a second electrode, which are provided in the unit cells and have polarities opposite to each other, from an image of each of the photographed unit cells; and a first arrangement part disposing the unit cell passing through the first measurement part at a preset position of the separation sheet to adjust an interval between the unit cells disposed on the separation sheet on the basis of the position of the first electrode, which is measured by the first measurement part.

Abstract: The present invention relates to a novel supramolecular self-assembly, a carbon nitride and a photocatalyst using same, and a manufacturing method therefor. The present invention can provide, by using a supramolecular self-assembly, a carbon nitride having a high N—C?N bonding ratio, a photocatalyst having excellent photocatalytic activity under visible light, and a manufacturing method therefor, the supramolecular self-assembly comprising: a plurality of complex units formed by hydrogen bonding two or more nitrogen-containing compounds to each other; and linker units connecting the plurality of complex units by hydrogen bonds, wherein the nitrogen-containing compounds and the linker units are each independently a —NH group and capable of hydrogen bonding with the —NH group, and the supramolecular self-assembly contains one or more heteroatoms selected from the group consisting of N, S, and O.

Abstract: A secondary battery includes an electrode assembly having a positive electrode provided with a positive electrode tab, a separator, and a negative electrode provided with a negative electrode tab, the positive electrode, the separator, and the negative electrode being wound, the electrode assembly having a core part at a center thereof; a can configured to receive the electrode assembly therein, the negative electrode tab being connected to the can; a cap assembly coupled to an opening of the can, the positive electrode tab being connected to the cap assembly; and a reinforcing member provided on an end of the separator exposed beyond the positive electrode or the negative electrode to prevent heat of the positive electrode tab or the negative electrode tab from being transferred to the separator.

Abstract: A method of manufacturing a unit cell having a negative electrode, a separator, and a positive electrode are stacked and placed between guide rollers. One of the positive electrode and the negative electrode. The separator is coated with a binder, and the separator is dipped in a solvent to soften a cured binder before the separator is put between the guide rollers. An apparatus for manufacturing a unit cell includes a reservoir in which at least two or more transfer rollers that rotate while the separator passes therethrough are mounted, and a solvent is stored at a predetermined level; and a chamber into which the separator passing through a reservoir is put together with the positive electrode and the negative electrode. Guide rollers are disposed so that the negative electrode and the positive electrode move to both surfaces of the separator, respectively.

Abstract: The present invention relates to a pressing apparatus capable of uniformly pressing an object to be pressed using a pressure adjustment portion having a fluid contained therein irrespective of the shape of the object and a pressing method using the same.

Abstract: A separator includes a polyolefin-based separator substrate and a coating portion formed on at least a part of an outer surface of the separator substrate. An uneven portion is formed along an outer periphery of at least one side of the separator, whereby it is possible to prevent deviation of a separator sheet from a movement direction during transfer of the separator sheet and stacking of an electrode assembly.

Abstract: An apparatus for preparing a unit cell is provided. The apparatus includes a center electrode reel from which a center electrode sheet is unwound, wherein the center electrode sheet is configured to form a plurality of center electrodes, separator reels from which separator sheets to be stacked with the center electrodes are unwound, a laminator configured to laminate a stack which is formed by stacking the plurality of center electrodes with the separator sheets while the plurality of center electrodes are spaced apart from each other and disposed in a row in a longitudinal direction of the separator sheets, a first nozzle configured to apply an adhesive to an upper surface of the separator sheet disposed on an uppermost layer of the laminated stack, and an upper electrode reel from which an upper electrode sheet is unwound.

Abstract: In order to the aforementioned issue, a unit cell manufacturing apparatus according to an embodiment of the present invention includes: an electrode reel from which an electrode sheet, which is to be a plurality of electrodes, is unwound; a separator reel from which a separator sheet to be stacked with the electrodes is unwound; and in a stack which is formed by stacking the plurality of electrodes with the separator sheet while the plurality of electrodes are spaced apart from each other and disposed in a row in the longitudinal direction of the separator sheet, a sealer which is disposed between the plurality of electrodes and applies heat and pressure to at least one of the corners of the electrodes or the edges of the electrodes.

Abstract: A laminator is configured for increasing the force of adhesion between an electrode and a separator upon forming a unit structural body. The laminator is configured for heating a unit structural body sheet that includes an electrode and a separator in a stacked state and a press roll having a pair of upper and lower rolls configured to press the heated unit structural body sheet. The press roll is configured to raise its temperature. The average temperature of the press roll is higher than the temperature of the unit structural body sheet.

Abstract: A secondary battery electrode is provided in the present disclosure. The secondary battery electrode includes an electrode current collector including first and second regions; an active material layer positioned on the first region of the electrode current collector; and an insulating layer positioned on the second region of the electrode current collector, wherein the insulating layer includes a first line portion and a second line portion.