WO2024253402A1 - 전극 조립체 제조 장치 - Google Patents
전극 조립체 제조 장치 Download PDFInfo
- Publication number
- WO2024253402A1 WO2024253402A1 PCT/KR2024/007603 KR2024007603W WO2024253402A1 WO 2024253402 A1 WO2024253402 A1 WO 2024253402A1 KR 2024007603 W KR2024007603 W KR 2024007603W WO 2024253402 A1 WO2024253402 A1 WO 2024253402A1
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- WO
- WIPO (PCT)
- Prior art keywords
- unit
- electrode assembly
- transport
- manufacturing device
- assembly manufacturing
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
- B65H29/241—Suction devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/27—Means for performing other operations combined with cutting
- B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/24—Pile receivers multiple or compartmented, e.d. for alternate, programmed, or selective filling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
- B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/085—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers by combinations of endless conveyors and grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/14—Details of grippers; Actuating-mechanisms therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
- B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/256—Carrying devices, e.g. belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
- B65H2301/4431—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material
- B65H2301/44312—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material between belts and rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/15—Roller assembly, particular roller arrangement
- B65H2404/152—Arrangement of roller on a movable frame
- B65H2404/1522—Arrangement of roller on a movable frame moving linearly in feeding direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/34—Suction grippers
- B65H2406/344—Suction grippers circulating in closed loop
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/72—Fuel cell manufacture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to an electrode assembly manufacturing device, and more specifically, to an electrode assembly manufacturing device that enables more precise cutting and transport in an electrode assembly manufacturing process and prevents the occurrence of defects in the electrode assembly.
- lithium secondary batteries are receiving the most attention because they have the advantages of free charging and discharging, low self-discharge rate, and high energy density.
- Secondary batteries are classified into cylindrical and square batteries, in which the electrode assembly is housed in a cylindrical or square metal can, and pouch-type batteries, in which the electrode assembly is housed in a pouch-type case made of aluminum laminate sheet, depending on the shape of the battery case.
- secondary batteries are classified according to the structure of the electrode assembly in which the positive electrode, the negative electrode, and the separator interposed between the positive electrode and the negative electrode are laminated.
- Representative examples include a jelly-roll type (rolled type) electrode assembly in which long sheet-shaped positive electrodes and negative electrodes are rolled up with a separator interposed between them, and a stack type (laminated type) electrode assembly in which a plurality of positive electrodes and negative electrodes cut into units of a predetermined size are sequentially laminated with a separator interposed between them.
- a stack/folding type electrode assembly which is a hybrid form of the jelly-roll type and the stack type has been developed.
- these electrode assemblies are manufactured by stacking multiple monocells having one positive electrode and one negative electrode and stacking half-cells on the outermost layer.
- Fig. 1 is a schematic diagram of an object (1) provided in a sheet form before cutting.
- the object (1) may be, for example, a monocell or a half-cell.
- the monocell may be manufactured by, for example, laminating in the order of separator sheet (2) - anode (3) - separator sheet (2) - cathode (3) or separator sheet (2) - cathode (3) - separator sheet (2) - anode (3), and then cutting the separator sheet (1) between adjacent electrodes (anode, cathode) (2).
- the line A-A illustrates a case where a monocell provided in a sheet form is normally cut
- the line B-B illustrates a case where a monocell provided in a sheet form is poorly cut.
- FIG 2 is a schematic diagram of a conventional electrode assembly manufacturing device.
- the conventional electrode assembly manufacturing device includes a supply unit (10), a cutting unit (20), a pressure member (23), a first transfer unit (30), a second transfer unit (40), and a stacking unit (50).
- the supply unit (10) provides a plurality of objects (1) (e.g., monocells or half-cells) in the form of sheets.
- the plurality of objects (1) can be provided by being connected to each other, manufactured in the form of sheets, wound in a roll type, and then unwound again from the supply unit (10).
- the plurality of objects (1) in the form of sheets are cut into individual objects (i.e., separated into one object) by the cutter (21) of the cutting unit (20), and then moved to the first transfer unit (30).
- the pressing member (23) is located at the rear end of the cutting unit (20) and the front end of the first transfer unit (30).
- the sheet-shaped objects (1) are pressed by the pressing member (23), and then the plurality of objects (1) in the form of sheets are cut into individual objects (1) by the cutter (21) of the cutting unit (20) along the line A-A (see FIG. 1).
- the cut object (1) moves along the first transfer unit (30) and then moves to the second transfer unit (40).
- the second transfer unit (40) is placed above the stacking unit (50) and supplies the object (1) onto the stacking unit (50). Accordingly, the object (1) is stacked to manufacture an electrode assembly.
- FIG. 1 there may be a case where, for example, an object (1) provided in the form of a sheet is provided to a cutting unit (20) in a folded state. At this time, when the folded object (1) sheet is cut by the cutting unit (20), a defect in the object (1) may occur, as in the B-B line. A case where a defect in the object (1) occurs, as in the B-B line of Fig. 1, will be described with reference to Figs. 3 and 4.
- FIG. 3 is an enlarged view of the dotted line portion of FIG. 2.
- the object (1) provided in the form of a sheet may be folded at the front end (P1) of the cutting unit (20).
- FIG. 4 schematically explains, by way of example, the reason why the object (1) is folded.
- the succeeding object (1) (1b) may not be able to move completely forward in the direction of travel due to the movement of the supply unit (10) or the flow of air (indicated by the arrow), etc.
- a folding phenomenon, etc. may occur in a portion where only a relatively thin separation membrane (2) exists.
- the alignment may be misaligned during the process of transporting the cut object (1).
- the alignment of the object (1) may be misaligned.
- the front side of the object (1) at the rear end (P2) of the cutting unit (20) may not be properly seated on the first transport unit (30), and a part of the object (1) may fall off through the gap between the cutting unit (20) and the first transport unit (30). This may cause the object (1) to fold or become misaligned when the cut object (1) is seated on the first transport unit (30).
- the present invention relates to an electrode assembly manufacturing device, and more specifically, to provide an electrode assembly manufacturing device that enables more precise cutting and transport in an electrode assembly manufacturing process and prevents the occurrence of defects in the electrode assembly.
- An electrode assembly manufacturing device includes a supply unit for supplying a plurality of sheet-shaped objects, a cutting unit for cutting each of the sheet-shaped objects into individual objects, and a first transport unit including a transport path for transporting the cut objects, wherein the plurality of sheet-shaped objects can be cut while being inclined downward toward the first transport unit.
- a plurality of objects in the form of sheets can move along an inclined surface inclined downward toward the first transfer unit.
- the cutting unit includes a pressing member that presses one end of the object supplied from the supply unit onto a holding surface that holds the object in the first transport unit, and a cutter that cuts one end of the object when the pressing member presses the one end of the object, wherein the one end of the object may be an end facing the transport direction and the other end of the object may be an end facing in the opposite direction to the transport direction.
- the above pressurizing member can pressurize the object by pulling the object in the transport direction immediately before the cutter cuts one end of the object.
- the above pressurizing member rotates while pressurizing the object, and the rotation speed of the pressurizing member may be greater than the supply speed of the supply unit.
- the ratio of the rotational speed of the above pressurizing member to the supply speed of the above supply unit may be greater than 1 and less than or equal to 1.2.
- the above-mentioned pressurizing member can move in the direction of movement of the object while pressurizing the object, and then return to the original state immediately after cutting the object.
- the above supply unit is a supply belt that supports and moves a plurality of objects in the form of sheets, and the pressure member can be a nip roller.
- the above first transport unit may be of a circular type and include a transport path for transporting the cut object and a return path for delivering the object and returning.
- the above first transport unit includes a plurality of holding members and a rail as a movement path of the plurality of holding members, and each holding member can hold one or more of the cut objects.
- the holding member includes an adsorption part that holds the front surface of the object in a gas suction manner and a support part that supports the adsorption part, and the adsorption part may be an adsorption plate that includes a plurality of adsorption holes on an adsorption surface on which the object is adsorbed.
- the invention may further include a manufacturing unit for manufacturing an electrode assembly from the object received directly from the first transport unit or from another unit interposed therebetween.
- the above manufacturing unit may be a stacking unit that stacks monocells and/or half-cells.
- the method further includes a second transfer unit interposed between the transfer path of the first transfer unit and the manufacturing unit, wherein the second transfer unit may include a transfer path for transferring the object received from the first transfer unit to the manufacturing unit in a circular manner and a return path for transferring the object and returning.
- the transport path of the first transport unit is located above the first transport unit, the transport path of the second transport unit is located below the second transport unit, and the end of the transport path of the first transport unit and the start of the transport path of the second transport unit can overlap each other.
- the object can be transferred in a state where the holding surface of the holding member of the first transfer unit, which holds the object, and the holding surface of the holding member of the second transfer unit, which holds the object, face each other.
- the second transport unit includes a plurality of holding members and a rail as a movement path of the plurality of holding members, and each holding member can hold one or more of the cut objects.
- the holding member includes an adsorption part that holds the front surface of the object in a gas suction manner and a support part that supports the adsorption part, and the adsorption part may be an adsorption plate that includes a plurality of adsorption holes on an adsorption surface on which the object is adsorbed.
- the above object may be a monocell or a half-cell.
- more precise cutting and transport can be enabled in the electrode assembly manufacturing process. Accordingly, the production efficiency of the electrode assembly can be maximized, and the quality of the produced electrode assembly can also be improved.
- Figure 1 is a schematic diagram of an object provided in sheet form before cutting.
- Figure 2 is a schematic diagram of a conventional electrode assembly manufacturing device.
- Figure 3 is a partially enlarged view of the electrode assembly manufacturing device of Figure 2.
- Figure 4 exemplarily explains why a folding phenomenon occurs in an object provided in sheet form.
- Figure 5 is a schematic diagram of an electrode assembly manufacturing device according to one embodiment of the present invention.
- Figure 6 is a partially enlarged view of the electrode assembly manufacturing device of Figure 5.
- FIGS. 7 and 8 illustrate the first and second embodiments of FIG. 6, respectively, and exemplarily illustrate how a pressure member pulls an object.
- FIG. 9 is a schematic drawing illustrating an example of a holding member included in FIG. 5.
- Fig. 10 is a cross-sectional view of the suction portion of the holding member illustrated in Fig. 9.
- FIG. 11 is a drawing illustrating another example of the holding member of FIG. 9.
- Figure 12 is a schematic diagram of an electrode assembly manufacturing device according to another embodiment of the present invention.
- a part such as a layer, film, region, or plate is “over” or “on” another part, this includes not only cases where it is “directly over” the other part, but also cases where there is another part in between. Conversely, when we say that a part is “directly over” another part, it means that there is no other part in between. Also, when we say that a part is “over” or “on” a reference part, it means that it is located above or below the reference part, and does not necessarily mean that it is located “over” or “on” the opposite direction of gravity.
- Fig. 5 is a schematic diagram of an electrode assembly manufacturing device according to one embodiment of the present invention.
- Fig. 6 is a partially enlarged view of the electrode assembly manufacturing device of Fig. 5.
- the electrode assembly manufacturing device of Fig. 5 includes a supply unit (100), a cutting unit (200), a first transfer unit (300), a second transfer unit (400), and a manufacturing unit (500).
- the supply unit (100) provides a plurality of objects (1) that are manufactured, for example, in the form of sheets and connected as one.
- the objects (1) may be, for example, monocells.
- the present invention is not necessarily limited to providing monocells, and may be applied to processes for providing, for example, halfcells, etc., and may be modified and changed to suit various environments to which the present invention is applied.
- the supply unit (100) may include, for example, a pair of supply belts (110, 120).
- the supply belts (110, 120) may support and move a plurality of sheet-shaped objects.
- the pair of supply belts (110, 120) are arranged facing each other.
- a sheet-shaped object (1) moves between the pair of supply belts (110, 120).
- the pair of supply belts (110, 120) circulate in opposite directions and circulate with their facing surfaces facing each other toward the cutting unit (200).
- Each of the pair of supply belts (110, 120) may be, for example, a conveyor belt.
- the pair of supply belts (110, 120) may be driven by, for example, a servo motor.
- the present invention is not limited to what is illustrated, and in some cases, only one supply belt (110) is provided, and a sheet-shaped object (1) is placed on the supply belt (110) and pressed against the object (1) with a roller or the like, and various modifications and changes are possible.
- the cutting unit (200) is arranged at the end (rear end) of the supply unit (100) and the beginning (front end) of the transfer unit (300).
- the cutting unit (200) cuts each of the plurality of sheet-shaped objects (1) supplied from the supply unit (100) into individual objects (1).
- the plurality of sheet-shaped objects (1) are cut while being inclined downward toward the first transfer unit (300).
- the objects (1) cut by the cutting unit (200) are transferred by the first transfer unit (300) and finally delivered to the manufacturing unit (500).
- the cutting unit (200) includes a cutter (210) that cuts a plurality of sheet-shaped objects (1) into individual objects (1), and may additionally include a support member (220). The lower surfaces of the plurality of sheet-shaped objects (1) discharged from the supply unit (100) may be supported by the upper surface of the support member (220).
- the cutting unit (200) includes a pressing member (230) that is arranged at the rear end of the cutter (210) and presses the upper surface of the objects (1).
- the pressing member (230) may be, for example, a nip roller.
- the pressing member (230) of the present invention is not limited thereto, and any pressing member (230) that can pressurize and fix the objects (1) is sufficient, and may be selected and applied in various ways according to the environment in which the present invention is implemented.
- the first transport unit (300) includes, for example, a plurality of holding members (310) and a rail (320) along which the holding members (310) move.
- the holding members (310) move the cut object (1).
- One object (1) may be moved per one holding member (310), but the present invention is not limited thereto, and may be modified and changed to move multiple objects (1), for example.
- the holding member (310) may move the object (1), for example, by adsorbing it.
- the holding member (310) includes an adsorbing portion (312, see FIG. 9) capable of adsorbing the object (1) to a holding surface, and the adsorbing portion (312) may have, for example, a plate shape.
- the adsorbing portion (312) includes a plurality of adsorbing holes (312a).
- the object (1) can be adsorbed by a plurality of adsorption holes (312, see Fig. 10) on the holding surface of the plate-shaped adsorption member (312).
- Other shapes and structures of the holding member (310) will be described later with reference to examples of Figs. 9 to 11.
- a plurality of holding members (310) are arranged on a rail (320) at predetermined intervals and move along the rail (320).
- the rail (320) may be, for example, a circular rail.
- the rail includes a transport path for holding an object (1) cut by a cutting unit (200) with the holding members (310) and transporting it to a second transport unit (400), and a return path for returning an empty holding member (310) that has transported the object (1) to the second transport unit (400).
- the transport path is a path for moving from the supply unit (100) to the second transport unit (400), and the return path is a path for returning from the second transport unit (400) to the supply unit (100).
- the upper path may correspond to the transport path
- the lower path may correspond to the return path.
- the transport path for transporting the object (1) may be located above the return path along which the empty holding member (310) returns.
- the holding surface of the holding member (310) located in the transport path of the first transport unit (300) faces upward. This is to ensure that the object (1) supplied from the supply unit (100) falls downward due to gravity and settles on the holding surface of the holding member (310) located in the transport path.
- the object (1) settled on the holding surface of the holding member (310) of the first transport unit (300) moves along the transport path and is transferred to the second transport unit (400).
- the second transport unit (400) also includes a plurality of holding members (410) and a rail (420) on which the holding members (410) move, similar to the first transport unit (300).
- the holding members (410) of the second transport unit (400) also move the cut object (1).
- one object (1) may be moved per one holding member (410), the present invention is not limited thereto, and may be modified and changed to move multiple objects (1).
- the holding member (410) of the second transport unit (400) can also move the object (1), for example, by adsorbing it, and the specific shape and structure of the holding member (410) of the second transport unit (400) can be applied substantially identically to the holding member (310) of the first transport unit (300), or can be implemented by modifying or changing it to suit the environment to which the present invention is applied. Therefore, reference is made to the holding member (310) of the first transport unit (300) described above.
- a plurality of holding members (410) are respectively arranged on a rail (420) at a predetermined interval and move along the rail (420).
- the rail (420) of the second transport unit (400) may also be, for example, a circular rail.
- the transport path includes a path along which an object (1) transported by the first transport unit (300) is held by the holding members (410) and transported to a manufacturing unit (500), and a return path along which an empty holding member (410) returns after transporting the object (1) to the manufacturing unit (500).
- the transport path is a path along which the object moves from the first transport unit (300) to the manufacturing unit (500), and the return path is a path along which the object returns from the manufacturing unit (500) to the first transport unit (300).
- the transport path for transporting the object (1) may be located lower than the return path for returning the empty holding member (410).
- the holding surface of the holding member (410) located in the transport path of the second transport unit (400) faces downward.
- the object (1) is a monocell or a half-cell and the manufacturing unit (500) is a stacking unit that stacks the monocells or half-cells to manufacture an electrode assembly
- the object (1) (monocell or half-cell) is dropped downward by gravity to the manufacturing unit (500) arranged below the second transport unit (400) and settled on top of the previously stacked object (1) (stacked monocell) to be stacked.
- the holding member (410) transports the object (1) to the manufacturing unit (500) along the transport path of the rail (420).
- the holding member (410) drops the object (1) down to the manufacturing unit (500) without holding (not absorbing) the object (1).
- the empty holding member (410) After supplying the object (1) to the manufacturing unit (500), the empty holding member (410) returns back to the first transport unit (300) along the return path, and then receives the object (1) again and transports it along the transport path.
- the manufacturing unit (500) manufactures an electrode assembly from the object received from the second transport unit.
- the manufacturing unit (500) manufactures an electrode assembly from the received object (1).
- the manufacturing unit (500) may be, for example, a stack unit that manufactures an electrode assembly by stacking monocells and/or half cells.
- the object (1) is transferred by the first transfer unit (300) and finally delivered to the manufacturing unit (500).
- a second transfer unit (400) is additionally provided in the path between the first transfer unit (300) and the manufacturing unit (500), so that the object (1) can be transferred to the manufacturing unit (500) in the order of the first transfer unit (300) and the second transfer unit (400).
- the electrode assembly can also be manufactured by receiving the object (1).
- the manufacturing unit (500) can directly receive the object (1) from the first transfer unit (300) and manufacture the electrode assembly. That is, in some cases, it can be implemented without the second transfer unit (400).
- the object (1) may be transferred to the manufacturing unit (500) by including other additional components in addition to the first transfer unit (300) and the second transfer unit (400).
- a plurality of objects (1) are provided in the form of sheets connected from the supply unit (100).
- One end of the objects (1) is positioned on the holding surface of the holding member (310) of the first transfer unit (300).
- the other end of the objects (1) is positioned on the upper surface of the support member (220).
- the one end of the objects (1) is an end of the objects (1) provided in the form of a sheet, and is an end positioned in the direction in which the objects (1) are moving, and the other end of the objects (1) is an end positioned in the opposite direction to the moving direction.
- one end of the objects (1) is fixed by the pressing member (230) while being placed on the holding surface of the holding member (310), and the other end of the objects (1) is positioned while being supported by the upper surface of the support member (220), and objects (1) connected in the form of sheets subsequent to the other end of the objects (1) are positioned in the supply unit (100).
- a cutting unit (200) i.e., cutter (210)
- cuts a separator between the object (1) and a subsequent object (1) is performed along the line A-A of Fig. 1.
- the object (1) supplied from the supply unit (10) extends in a straight line in the direction of movement of the upper surface of the conveyor belt of the first transfer unit (30)
- the object (1) provided in the form of a sheet at the front end (P1) of the cutting unit (20) may be folded.
- the object (1) cut at the rear end (P2) of the cutting unit (20) is placed on the first transfer unit (30)
- the object (1) may be folded or misaligned.
- FIGS. 5 and 6 a plurality of sheet-shaped objects (1) are tilted downward toward the first transfer unit (300), and as shown in FIGS. 7 and 8, the objects (1) are cut while being pulled by a pressure member (230).
- a plurality of sheet-shaped objects (1) supplied from the supply unit (100) to the cutting unit (200) are positioned on the holding surface of the holding member (310) in a state of being obliquely inclined with respect to the holding surface of the holding member (310) immediately before cutting of the objects (1).
- the supply unit (100) supplies the objects (1) to the cutting unit (200) so that the objects (1) are in a state of being obliquely inclined.
- the direction of movement of the objects (1) in the supply unit (100) has an inclination angle that is obliquely inclined downward toward the first transfer unit (300) (more specifically, toward the cutter (210) of the cutting unit (200).
- the supply belts (110, 120) have an inclination angle that is obliquely inclined downward toward the first transfer unit (300).
- the object (1) supplied from the supply unit (100) moves along an inclined surface that is inclined downwardly toward the first transfer unit (300). Accordingly, the object (1) supplied from the supply unit (100) to the cutting unit (200) has an inclination angle that is inclined downwardly toward the first transfer unit (300).
- the present invention is not limited to what is illustrated, and it is sufficient if the plurality of sheet-shaped objects (1) are positioned between the supply unit (100) and the cutting unit (200) while being inclined downward toward the first transfer unit (300), and the present invention can be modified and changed to suit the environment in which it is implemented.
- the object (1) supplied from the supply unit (100) is positioned on the holding surface of the holding member (310) in a state of being tilted obliquely with respect to the holding surface of the holding member (310) immediately before cutting of the object (1).
- one end of the object (1) can be pressed by the pressing member (230).
- the pressing member (230) is also pulled in the direction of the transport path of the first transport unit (300) (right direction in FIG. 6).
- the folding phenomenon of the plurality of objects (1) in the form of sheets can be prevented. Since the plurality of objects (1) are properly aligned without folding during cutting, miscutting can be prevented, thereby improving the cutting quality and significantly reducing the occurrence of defective products.
- the objects (1) can be flattened by gravity, compared to the case where they are provided in a horizontal direction in the conventional technology of FIG. 4.
- the objects (1) can be flattened reliably.
- FIG. 7 and FIG. 8 are examples of the first embodiment and the second embodiment of FIG. 6, respectively, showing how the pressure member (230) pulls the object (1).
- the pressurizing member (230) also rotates.
- the rotation direction of the pressurizing member (230) is the same as the rotation direction of the supply belt (110). That is, since the supply belt (110) in the supply unit (100) is also positioned above the object (1), and the pressurizing member (230) in the cutting unit (200) is also positioned above the object (1), the rotation directions are the same.
- the rotation speed of the pressurizing member (230) is greater than the supply speed (rotation speed) of the supply belt (110) (similarly, the rotation speed of the pressurizing member (230) is greater than the supply speed (rotation speed) of the corresponding supply belt (120) with only the rotation direction being different).
- the rotation speed of the pressing member (230) is greater than the rotation speed of the supply belt (110, 120), so the sheet-shaped object (1) is pulled by the rotation of the pressing member (230).
- one end of the object (1) is pressed onto the holding surface of the holding member (310) by the pressing member (230).
- [Rotation speed of the pressurizing member (230)]/[supply speed (rotation speed) of the supply belt (110, 120)] may be, for example, greater than 1 and less than or equal to 1.2. Or, for example, may be greater than or equal to 1.02 and less than or equal to 1.08.
- the pressurizing member (230) may be, for example, a nip roller.
- a driving means (not shown) for rotating the pressurizing member (230) may be coupled to the pressurizing member (230), and the driving means may be, for example, a servo motor.
- the rotation speed, rotation time, pressurization degree, pressurization time interval, and the like of the pressurizing member (230) may be variously applied according to the environment in which the present invention is implemented.
- the pressurizing member (230) may not rotate, but may move linearly in the direction of the transport path of the object (1) while pressing the object (1). Immediately after cutting the object (1) with the cutter (210), the pressurizing member (230) returns to its original state.
- the pressurizing member (230) may be implemented in the form of a non-rotating nip roller, but is not necessarily limited thereto, and any form and structure that pressurizes the object (1) but does not damage the object (1) is sufficient.
- a driving means (not shown) is coupled to the pressurizing member (230).
- the rotation speed, rotation time, pressurizing degree, pressurizing time interval, etc. of the pressurizing member (230) may be variously applied according to the environment in which the present invention is implemented.
- the object (1) is cut by the cutting unit (200) and at the same time, the object (1) positioned in a state of being tilted upward on the holding surface of the holding member (310) is settled on the holding surface of the holding member (310) without folding along the circumferential direction with one end of the object (1) as the central axis by gravity.
- the inclination angle of the movement path of the object (1) in the supply unit (100) is, for example, an inclination angle greater than 0 degrees and less than 90 degrees, or greater than 5 degrees and less than 45 degrees, or greater than 10 degrees and less than 30 degrees, based on the movement path of the object (1) in the movement path of the first transfer unit (300).
- the inclination angle can be adjusted and applied in various ways according to the type of the object (1), the movement speed of the object (1), the environment in which the present invention is implemented, etc.
- Fig. 9 is a schematic drawing illustrating an example of a holding member included in Fig. 5.
- Fig. 10 is a cross-sectional view of the suction portion of the holding member illustrated in Fig. 9 as viewed from the front.
- the holding member (310) of the present embodiment may be provided as a suction device that applies a gas suction method.
- the holding member (310) includes a support member (311) that moves the holding member (310) and supports the suction member (312), and an suction member (312) that is temporarily attached (absorbed) to the object (1) by suctioning gas.
- One end of the support member (311) located on the rail (32) side may be provided with a driving means (e.g., a wheel) that can move the holding member (310) along the rail (32).
- the driving means may be anything that can move the holding member (310), and various driving means may be applied.
- An adsorption part (312) may be positioned at the other end of the support part (311).
- the adsorption part (312) may include a plurality of adsorption holes (312a) so as to be able to adsorb, lift, and move the object (1).
- the plurality of adsorption holes (312a) are connected to a suction pipe (312b), and external air may be sucked from the adsorption holes (312a) through the suction pipe (312b) to adsorb the object (1).
- These plurality of adsorption holes (312a) may be evenly distributed over the entire adsorption surface of the adsorption part (312) so that the object (1) does not fold during movement.
- the adsorption holes (312a) may be arranged in a grid shape over the entire adsorption surface of the adsorption part (312), or may be arranged along a plurality of straight lines arranged in a row or radially, or may be arranged along a plurality of concentric circles, and the like, and may be applied in various ways, such as by modifying and changing them.
- FIG. 11 is a drawing showing another example of the holding member of FIG. 9.
- the holding member (310) of FIG. 11 is a suction device that applies a gas suction method and may be provided as a bellow-type suction cup.
- the bellow-type holding member (310) can suck gas through a suction hole that is opened downward.
- the bellow-type suction cup may be provided so that its cross-section has a reverse taper shape as shown in FIG. 11(a), or may be provided so as to have a buffering effect that responds to an external force and minimizes damage to the object (1) by forming wrinkles on the circumference as shown in FIG. 11(b).
- the above-described bellow-type suction cup may be provided in one holding member (310) as needed, or may be provided in multiples to cover a wider area.
- the holding member (310) when explaining the holding member (310), the explanation is centered on the holding member (310) having a gas suction function.
- the holding member (310) may be provided without a gas suction function, and for example, the holding member (310) may be provided in the form of a clamp or gripper that holds and fixes the object (1) and moves it, and may be variously modified and changed to suit the environment to which the present invention is applied.
- each of the first transfer unit (300) and the second transfer unit (400) of FIG. 5 includes a plurality of holding members (310, 320) and rails (320, 420) has been exemplarily described with reference to FIGS. 5 to 11, but the present invention is not limited to the above-described case, and various modifications and changes are possible, such as the first transfer unit (300) and the second transfer unit (400) each being implemented as a conveyor belt.
- Figure 12 is a schematic diagram of an electrode assembly manufacturing device according to another embodiment of the present invention.
- the manufacturing unit (500) can directly receive the object (1) from the first transfer unit (300) and manufacture the electrode assembly. That is, the object (1) can be directly transferred from the first transfer unit (300) to the manufacturing unit (500) without going through the second transfer unit (400), thereby manufacturing the electrode assembly.
- an electrode assembly is manufactured by receiving a target object (1) from another unit interposed between the first transfer unit (300) and the manufacturing unit (500).
- the transport path of the first transport unit (300) refers to the embodiment of Fig. 5.
- the manufacturing unit (500) may be arranged, for example, below the first transport unit (300). This is to provide the object (1) by dropping downwards by gravity from the lower rail of the first transport unit (300) to the manufacturing unit (500). More specifically, when the object (1) is a monocell or a half-cell and the manufacturing unit (500) is a stacking unit that stacks the monocells or half-cells to manufacture an electrode assembly, the object (1) (monocell or half-cell) is dropped downwards by gravity to the manufacturing unit (500) arranged below the first transport unit (300) and settled on the previously stacked object (1) (stacked monocell) to be stacked. After supplying the object (1) to the manufacturing unit (500), the empty holding member (310) of the first transport unit (300) returns along the return path toward the supply unit (100) and cutting unit (200), holds the object (1), and then moves along the transport path again.
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Abstract
Description
Claims (19)
- 시트 형태의 복수 개의 대상물을 공급하는 공급 유닛;상기 시트 형태의 복수 개의 대상물을 각각의 대상물 별로 컷팅하는 컷팅 유닛; 및상기 컷팅된 대상물을 이송하는 이송 경로를 포함하는 제1 이송 유닛을 포함하고,상기 시트 형태의 복수 개의 대상물은 상기 제1 이송 유닛을 향하여 하방으로 비스듬히 기울어진 상태에서 컷팅되는, 전극 조립체 제조 장치.
- 제1항에 있어서,상기 공급 유닛에서 상기 시트 형태의 복수 개의 대상물은 상기 제1 이송 유닛을 향하여 하방으로 비스듬히 기울어진 경사면을 따라 이동하는, 전극 조립체 제조 장치.
- 제1항에 있어서,상기 컷팅 유닛은:상기 공급 유닛에서 공급되는 상기 대상물의 일단부를 상기 제1 이송 유닛에서의 상기 대상물을 홀딩하는 홀딩면 상으로 가압하는 가압 부재; 및상기 가압 부재가 상기 대상물의 상기 일단부를 가압할 때, 상기 대상물의 일단부를 컷팅하는 컷터를 포함하고,상기 대상물의 일단부는 상기 이송 방향을 향하는 단부이고 상기 대상물의 타단부는 상기 이송 방향의 반대 쪽으로 향하는 단부인, 전극 조립체 제조 장치.
- 제3항에 있어서,상기 가압 부재는, 상기 컷터가 상기 대상물의 일단부를 컷팅하기 직전에 상기 대상물을 상기 이송 방향으로 당겨주면서 상기 대상물을 가압하는, 전극 조립체 제조 장치.
- 제4항에 있어서,상기 가압 부재는 상기 대상물을 가압하면서 회전하고, 상기 가압 부재의 회전 속도는 상기 공급 유닛의 공급 속도보다 더 큰, 전극 조립체 제조 장치.
- 제5항에 있어서,상기 가압 부재의 회전 속도 대 상기 공급 유닛의 공급 속도의 비는 1 초과 1.2 이하인, 전극 조립체 제조 장치.
- 제4항에 있어서,상기 가압 부재는 상기 대상물을 가압하면서 상기 대상물의 이동 방향으로 이동하였다가, 상기 대상물의 컷팅 직후 원상태로 복귀하는, 전극 조립체 제조 장치.
- 제3항에 있어서,상기 공급 유닛은 상기 시트 형태의 복수 개의 대상물을 지지하여 이동시키는 공급 벨트이고,상기 가압 부재는 닙 롤러인, 전극 조립체 제조 장치.
- 제1항에 있어서,상기 제1 이송 유닛은 순환형으로서 상기 컷팅된 대상물을 이송하는 이송 경로 및 상기 대상물을 전달하고 다시 돌아오는 복귀 경로를 포함하는, 전극 조립체 제조 장치.
- 제1항에 있어서,상기 제1 이송 유닛은 복수 개의 홀딩 부재 및 상기 복수 개의 홀딩 부재의 이동 경로인 레일을 포함하고,각각의 홀딩 부재는 상기 컷팅된 대상물을 하나 또는 복수 개로 홀딩하는, 전극 조립체 제조 장치.
- 제10항에 있어서,상기 홀딩 부재는 기체 흡입 방식으로 상기 대상물의 전면을 홀딩하는 흡착부 및 상기 흡착부를 지지하는 지지부를 포함하고,상기 흡착부는 상기 대상물이 흡착되는 흡착면에 복수 개의 흡착홀을 포함하는 흡착 플레이트인, 전극 조립체 제조 장치.
- 제1항에 있어서,상기 제1 이송 유닛으로부터 직접적으로 또는 사이에 개재한 다른 유닛으로부터 전달받은 상기 대상물로부터 전극 조립체를 제조하는 제조 유닛을 더 포함하는, 전극 조립체 제조 장치.
- 제12항에 있어서,상기 제조 유닛은 모노셀 및/또는 하프셀을 적층하는 적층 유닛인, 전극 조립체 제조 장치.
- 제12항에 있어서,상기 제1 이송 유닛과 상기 제조 유닛의 이송 경로 사이에 개재한 제2 이송 유닛을 더 포함하고,상기 제2 이송 유닛은 순환형으로서 상기 제1 이송 유닛으로부터 전달받은 상기 대상물을 상기 제조 유닛으로 이송하는 이송 경로 및 상기 대상물을 전달하고 다시 돌아오는 복귀 경로를 포함하는, 전극 조립체 제조 장치.
- 제12항에 있어서,상기 제1 이송 유닛의 이송 경로는 상기 제1 이송 유닛의 상부에 위치하고, 상기 제2 이송 유닛의 이송 경로는 상기 제2 이송 유닛의 하부에 위치하고,상기 제1 이송 유닛의 이송 경로의 끝단과 상기 제2 이송 유닛의 이송 경로의 시작단은 서로 중첩되는, 전극 조립체 제조 장치.
- 제14항에 있어서,상기 제1 이송 유닛의 홀딩 부재의 상기 대상물을 홀딩하는 홀딩면과 상기 제2 이송 유닛의 홀딩 부재의 상기 대상물을 홀딩하는 홀딩면이 서로 마주보는 상태에서 상기 대상물이 전달되는, 전극 조립체 제조 장치.
- 제14항에 있어서,상기 제2 이송 유닛은 복수 개의 홀딩 부재 및 상기 복수 개의 홀딩 부재의 이동 경로인 레일을 포함하고,각각의 홀딩 부재는 상기 컷팅된 대상물을 하나 또는 복수 개로 홀딩하는, 전극 조립체 제조 장치.
- 제17항에 있어서,상기 홀딩 부재는 기체 흡입 방식으로 상기 대상물의 전면을 홀딩하는 흡착부 및 상기 흡착부를 지지하는 지지부를 포함하고,상기 흡착부는 상기 대상물이 흡착되는 흡착면에 복수 개의 흡착홀을 포함하는 흡착 플레이트인, 전극 조립체 제조 장치.
- 제1항에 있어서,상기 대상물은 모노셀 또는 하프셀인, 전극 조립체 제조 장치.
Priority Applications (3)
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|---|---|---|---|
| JP2025557453A JP2026511900A (ja) | 2023-06-07 | 2024-06-04 | 電極組立体製造装置 |
| CN202480021865.8A CN120958619A (zh) | 2023-06-07 | 2024-06-04 | 用于制造电极组件的设备 |
| EP24819553.9A EP4672393A1 (en) | 2023-06-07 | 2024-06-04 | ELECTRODE ASSEMBLY MANUFACTURING APPARATUS |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20230073172 | 2023-06-07 | ||
| KR10-2023-0073172 | 2023-06-07 | ||
| KR10-2024-0065595 | 2024-05-21 | ||
| KR1020240065595A KR20240174036A (ko) | 2023-06-07 | 2024-05-21 | 전극 조립체 제조 장치 |
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|---|---|
| WO2024253402A1 true WO2024253402A1 (ko) | 2024-12-12 |
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| EP (1) | EP4672393A1 (ko) |
| JP (1) | JP2026511900A (ko) |
| CN (1) | CN120958619A (ko) |
| WO (1) | WO2024253402A1 (ko) |
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| JP2014235800A (ja) * | 2013-05-31 | 2014-12-15 | 株式会社日立パワーソリューションズ | ロールプレス設備 |
| KR20160094182A (ko) * | 2015-01-30 | 2016-08-09 | 주식회사 엘지화학 | 전극 조립체 제조 장치 |
| JP2018067439A (ja) * | 2016-10-19 | 2018-04-26 | トヨタ自動車株式会社 | 積層電池製造装置 |
| KR20220109692A (ko) * | 2021-01-29 | 2022-08-05 | 주식회사 엘지에너지솔루션 | 전극 커팅 장치 및 이를 포함하는 전극 제조장치 |
| KR20230026649A (ko) * | 2021-08-18 | 2023-02-27 | 주식회사 엘지에너지솔루션 | 전극 커팅장치 및 이를 포함하는 셀 제조장치 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102535707B1 (ko) | 2020-11-26 | 2023-05-23 | 주식회사 세라젬 | 온열 치료기 |
| KR20240065595A (ko) | 2022-11-03 | 2024-05-14 | 주식회사 미림타일도기 | 폐마스크를 이용한 타일의 제조방법 |
-
2024
- 2024-06-04 WO PCT/KR2024/007603 patent/WO2024253402A1/ko not_active Ceased
- 2024-06-04 JP JP2025557453A patent/JP2026511900A/ja active Pending
- 2024-06-04 CN CN202480021865.8A patent/CN120958619A/zh active Pending
- 2024-06-04 EP EP24819553.9A patent/EP4672393A1/en active Pending
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|---|---|---|---|---|
| JP2014235800A (ja) * | 2013-05-31 | 2014-12-15 | 株式会社日立パワーソリューションズ | ロールプレス設備 |
| KR20160094182A (ko) * | 2015-01-30 | 2016-08-09 | 주식회사 엘지화학 | 전극 조립체 제조 장치 |
| JP2018067439A (ja) * | 2016-10-19 | 2018-04-26 | トヨタ自動車株式会社 | 積層電池製造装置 |
| KR20220109692A (ko) * | 2021-01-29 | 2022-08-05 | 주식회사 엘지에너지솔루션 | 전극 커팅 장치 및 이를 포함하는 전극 제조장치 |
| KR20230026649A (ko) * | 2021-08-18 | 2023-02-27 | 주식회사 엘지에너지솔루션 | 전극 커팅장치 및 이를 포함하는 셀 제조장치 |
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| JP2026511900A (ja) | 2026-04-14 |
| EP4672393A1 (en) | 2025-12-31 |
| CN120958619A (zh) | 2025-11-14 |
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