WO2023224287A1 - 분리막 접힘을 방지하기 위한 전극조립체 제조장치 및 이를 이용하여 제조된 전극조립체 - Google Patents
분리막 접힘을 방지하기 위한 전극조립체 제조장치 및 이를 이용하여 제조된 전극조립체 Download PDFInfo
- Publication number
- WO2023224287A1 WO2023224287A1 PCT/KR2023/005893 KR2023005893W WO2023224287A1 WO 2023224287 A1 WO2023224287 A1 WO 2023224287A1 KR 2023005893 W KR2023005893 W KR 2023005893W WO 2023224287 A1 WO2023224287 A1 WO 2023224287A1
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- WO
- WIPO (PCT)
- Prior art keywords
- separator
- separator sheet
- unit
- electrode
- electrode assembly
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000004381 surface treatment Methods 0.000 claims abstract description 44
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 238000003475 lamination Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 22
- 230000001153 anti-wrinkle effect Effects 0.000 claims description 14
- 230000037330 wrinkle prevention Effects 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000037303 wrinkles Effects 0.000 abstract description 7
- 230000002950 deficient Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
-
- 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 apparatus for preventing separator folding and an electrode assembly manufactured using the same. Specifically, the present invention relates to an electrode assembly manufacturing apparatus capable of preventing separator folding by forming a fine embossed pattern on the cutting portion of the separator sheet while the separator sheet is stretched tightly, and to an electrode assembly manufactured using the same.
- Lithium secondary batteries which are rechargeable and have high energy density, are attracting attention as a new energy source with eco-friendly characteristics because they can not only dramatically reduce the use of fossil fuels, but also do not generate by-products due to energy use.
- Lithium secondary batteries are attracting attention not only as an energy source for wearable or portable devices, but also as an energy source for devices with high output and high energy density, such as electric vehicles.
- a positive electrode and a negative electrode are placed between a separator, and the stacked electrode assembly can form a battery cell, which is a unit structure embedded in a battery case together with an electrolyte solution.
- the electrode assembly is a half-cell type in which one electrode is placed between two separators and stacked, and a mono-cell type in which two electrodes of different polarities are stacked with a separator on one side. Includes.
- two separators and electrodes are placed so that they completely overlap in the stacking direction, and then a lamination process is performed in which heating and pressure are performed to ensure adhesion to each other.
- the separator is designed to have a larger area than the electrodes to ensure insulation between different polarities, but during the transport process for manufacturing the electrode assembly, the separator may be folded or a defective electrode assembly with wrinkles on the separator may occur. When the defective electrode assembly is manufactured into a battery cell, a short circuit may occur between electrodes of different polarities.
- Patent Document 1 is about an electrode assembly manufacturing device that performs a joining process with the electrodes aligned in a desired position.
- the electrode In the step before the electrode is introduced into the joint, the electrode is fixed in the correct position by the gripper, and the electrode is fixed in the correct position. Since the guide roller can transport the aligned electrodes to the joint, misalignment of the electrodes or the occurrence of steps can be prevented.
- Patent Document 1 does not suggest a technology for preventing folding of the separator.
- Patent Document 2 is about an electrode assembly manufacturing method and an electrode assembly manufacturing device that correct the meandering of the electrode.
- the center position of the electrode is measured through a vision sensor, and the position of the electrodes and separator are moved when manufacturing the electrode assembly to correct positional deviation.
- a meander correction process is included in which the electrode and separator are transported in the X-axis direction, which is the direction of movement of the electrode, and the Y-axis direction, which is the width direction of the electrode.
- Patent Document 2 discloses a method and device for aligning the positions of the electrodes and the separator before the joining process of joining the electrode and the separator, but does not present a technology that can solve problems such as the separator being folded during the electrode assembly transfer process. It is not happening.
- Patent Document 1 Korean Patent Publication No. 2017-0114351 (2017.10.16)
- Patent Document 2 Korean Patent Publication No. 2021-0058170 (2021.05.24)
- the present invention is intended to solve the above problems, and is a method of manufacturing an electrode assembly that can prevent defects in the electrode assembly by performing lamination in a state where there are no wrinkles or folds in the separator of the electrode assembly, and an electrode manufactured using the same.
- the purpose is to provide an assembly.
- the electrode assembly manufacturing apparatus for achieving this purpose includes a first separator supply unit that supplies the first separator sheet from the first separator roll, and a first unit electrode by cutting the first electrode taken out from the first electrode roll.
- a first electrode supply unit that supplies, a second separator supply unit that supplies a second separator sheet from a second separator roll, a wrinkle prevention unit that holds the first separator sheet and the second separator sheet and applies tension, and the first separator sheet.
- a surface treatment part that forms a fine embossed pattern on the separator sheet and the second separator sheet, a lamination part that attaches the first separator sheet, the first unit electrode, and the second separator sheet by heating and pressing, and the first separator sheet.
- it may include a cutting part that cuts the second separator sheet.
- it further includes a second electrode supply unit that supplies second unit electrodes by cutting the second electrode taken out from the second electrode roll, and the lamination unit includes the first separator sheet, the second unit electrode, the second separator sheet, and the second electrode roll.
- the second unit electrode can be attached by pressing.
- the surface treatment unit may be located within the anti-wrinkle unit.
- the surface treatment unit may be disposed at a rear end of the wrinkle prevention unit.
- the anti-wrinkle unit includes a pair of first grippers gripping both ends parallel to the traveling direction of the first separator sheet, and a pair of second grippers gripping both ends parallel to the traveling direction of the second separator sheet. May include a gripper.
- the pair of first grippers and the pair of second grippers may pull both ends of each of the first separator sheet and the second separator sheet so that the first separator sheet and the second separator sheet are in a taut state. .
- the first gripper and the second gripper are configured with a plurality of unit grippers arranged in a circular transfer line, and the circular transfer line moves at the same speed as the transfer speed of the first separator sheet and the second separator sheet.
- the plurality of unit grippers can be transported.
- the plurality of unit grippers may be individually movable toward or away from the first separator sheet and the second separator sheet.
- the surface treatment unit includes a first surface treatment unit for surface treatment of the first separator sheet, and a second surface treatment unit for surface treatment of the second separator sheet, and the first surface treatment unit and the second surface treatment unit It consists of a lower die and an upper punch, and the upper punch may have fine protrusions formed.
- the surface treatment unit may form a fine embossed pattern at a portion where the first separator sheet and the second separator sheet are cut.
- the fine raised pattern formed on the first separator sheet and the fine raised pattern formed on the second separator sheet may be arranged to overlap each other.
- the present invention provides an electrode assembly manufactured using the electrode assembly manufacturing apparatus, wherein the outer periphery of the first separator and the second separator includes a surplus portion extending further than the outer periphery of the first unit electrode. , a fine embossed pattern may be formed on the excess portions of the first separator and the second separator.
- the electrode assembly may be a half cell in which a first separator, a first unit electrode, and a second separator are sequentially stacked, or a monocell in which a first separator, a first unit electrode, a second separator, and a second unit electrode are sequentially stacked. there is.
- the present invention can also be provided in various combinations of means for solving the above problems.
- lamination can be performed while the separator sheet is kept taut.
- the fine raised pattern is formed on the separator sheet, it is possible to prevent the two separator sheets arranged to overlap from slipping.
- FIG. 1 is a schematic diagram of an electrode assembly manufacturing apparatus according to the present invention.
- Figure 2 is a plan view of a state in which the anti-wrinkle unit according to the present invention holds a separator sheet.
- Figure 3 is a perspective view of Figure 2.
- Figure 4 is a side view of the anti-wrinkle portion according to the present invention.
- Figure 5 is a front view of the anti-wrinkle portion according to the present invention.
- Figure 6 is a top view of a separator sheet with a fine raised pattern formed thereon.
- Figure 7 is a perspective view of the surface treatment part.
- FIG. 1 is a schematic diagram of an electrode assembly manufacturing apparatus according to the present invention.
- the electrode assembly manufacturing apparatus includes a first separator supply unit 100 that supplies the first separator sheet 110 from the first separator roll, and a first electrode taken out from the first electrode roll ( A first electrode supply unit 200 that supplies the first unit electrode 211 by cutting 210), a second separator supply unit 300 that supplies a second separator sheet 310 from a second separator roll, and a first separator sheet.
- first separator sheet 210, the first unit electrode 211, and the second separator sheet supplied from the first separator supply unit 100, the first electrode supply unit 200, and the second separator supply unit 300, respectively.
- 310 is heat-sealed and the first separator sheet 110 and the second separator sheet 310 are cut at the cutting unit 800, a half-cell-shaped electrode assembly can be manufactured.
- the lamination unit 700 may further include a second electrode supply unit 400 that supplies the second unit electrode 411 by cutting the second electrode 410 taken out from the second electrode roll.
- An electrode assembly in the form of a monocell can be manufactured by attaching the first separator sheet 110, the second unit electrode 211, the second separator sheet 310, and the second unit electrode 411 by pressing.
- the present invention provides a wrinkle prevention portion 500 to prevent the separator sheets from being folded or wrinkles forming when manufacturing an electrode assembly including at least two separator sheets.
- a surface treatment unit 600 that forms a fine embossed pattern on the surface of the separator sheets facing each other.
- the wrinkle prevention portion 500 is located around the outer periphery of the first separator sheet 110 and the second separator sheet 310 in order to prevent wrinkles from forming in the first separator sheet 110 and the second separator sheet 310. Grasp and pull to ensure they are taut.
- the anti-wrinkle unit 500 is disposed at the front of the lamination unit 700, and can prevent wrinkles from forming in the separator sheet at a stage before the laminate composed of the separator sheet and the electrode enters the lamination unit 700. Therefore, when attaching a laminate composed of a separator sheet and an electrode in the lamination unit 700 by heating and pressing, the electrode and the separator sheet can be attached in a flat state.
- the first separator sheet 110 and the second separator sheet 310 are tensioned in a state in which the first separator sheet 110 ) and a process of forming a fine embossed pattern on the outer surface of the second separator sheet 310 may be performed.
- the surface treatment unit 600 may be disposed at the rear end of the anti-wrinkle unit 500, so that the first separator sheet 110 and the second separator sheet 310 in a taut state in the anti-wrinkle unit 500 are When moving to the surface treatment unit 600, the surface treatment unit 600 can form a fine embossed pattern on the first separator sheet 110 and the second separator sheet 310.
- Figure 2 is a plan view of the anti-wrinkle unit according to the present invention while holding the separator sheet
- Figure 3 is a perspective view of Fig. 2
- Figure 4 is a side view of the anti-wrinkle unit according to the present invention.
- Figures 2 and 3 show one separator sheet and a wrinkle prevention part holding the separator sheet, but the one separator sheet includes a first separator sheet 110 and a second separator sheet 310. Therefore, the description of the first separator sheet 110 in the description of FIGS. 2 and 3 can be equally applied to the second separator sheet.
- Figures 2 to 4 show only the first gripper 510 for gripping the first separator sheet, but the description of the first gripper 510 for gripping the first separator sheet 110 described below The same can be applied to the second gripper that grips the second separator sheet 310.
- the anti-wrinkle portion 500 includes a pair of first grippers 510 that grip both ends parallel to the traveling direction (A) of the first separator sheet 110. , and a pair of second grippers that grip both ends parallel to the traveling direction of the second separator sheet.
- the second gripper is not shown in the drawing, the second separator sheet 110 and the second gripper gripping the first separator 510 may be disposed on top of the first separator sheet 110 and the first gripper 510 gripping the first separator sheet 110.
- the first unit electrodes 211 are arranged along the traveling direction A to form a constant spacing. Both ends parallel to the traveling direction (A) of the first separator sheet 110 have surplus parts extending beyond the ends of the first unit electrode 211, and the first gripper 510 grips the surplus parts. .
- the first unit electrodes 211 can be prevented from being damaged by the first gripper 510 that grips the first separator sheet 110.
- the first gripper 510 and the second gripper are positioned at both ends of the first separator sheet 110 and the second separator sheet 310 so that the first separator sheet 110 and the second separator sheet 310 are in a taut state. is pulled. That is, the first gripper 510, which constitutes a pair, pulls the first separator sheet 110 in a direction in which the distance between them increases so that the first separator sheet 110 is in a taut state.
- Figures 2 to 4 show a form in which 16 first grippers 510, consisting of a pair, are arranged on the circular transfer line 520 along the traveling direction A of the first separator sheet 110.
- the number of a pair of first grippers disposed on the circular transfer line 520 is not limited to this.
- the circular transfer line 520 is located at each end parallel to the traveling direction (A) of the first separator sheet 110, and each circular transfer line 520 has a plurality of unit grippers 511. They are placed at regular intervals.
- the circular transfer line 520 travels at the same speed as the transfer speed of the first separator sheet 110 and the second separator sheet 310 and transfers a plurality of unit grippers 511.
- Figure 5 is a front view of the anti-wrinkle portion according to the present invention.
- the plurality of unit grippers 511 may include an upper unit and a lower unit, and one end of the upper unit and the lower unit functions as a kind of rotation axis in a coupled state, and the rotation axis is referenced. In this way, the other end may be deformed so that the open and closed states are repeated.
- the plurality of unit grippers 511 move along the circular transfer line 520 with the upper unit and lower unit separated, as shown in the upper part of FIG. 5, and then move between the first separator sheet 110 and the first separator sheet 110. When it gets closer, it is transformed into a closed state as shown in the lower part of Figure 5 in order to hold both ends parallel to the traveling direction (A) of the first separator sheet 110, and tension, which is a force that pulls the first separator sheet 110, is applied. This can be approved.
- the plurality of unit grippers 511 release the first separator sheet 110 and hold it in the form shown in the upper part of FIG. 5. It is transformed.
- the plurality of unit grippers 511 move along the circular transfer line 520 and move closer to the separator sheet, and change from the open state to the closed state to grab the excess portion around the outer periphery of the separator sheet. . Afterwards, in order to tension the separator sheet, both ends are pulled away from each other. When the process of pulling the separator sheet is completed in this way, the closed state of the unit grippers is transformed into an open state and can be moved away from the separator sheet.
- the plurality of unit grippers 511 may be individually movable toward or away from the separator sheet.
- Figure 6 is a plan view of a separator sheet with a fine embossed pattern
- Figure 7 is a perspective view of the surface treatment portion.
- FIG. 6 shows one separator sheet and electrodes arranged to be spaced apart at regular intervals on the separator sheet.
- the separator sheet shown in FIG. 6 includes a first separator sheet and a second separator sheet.
- Figure 7 shows two types of surface treatment units, but the surface treatment unit includes a first surface treatment unit for surface treatment of the first separator sheet and a second surface treatment unit for surface treatment of the second separator sheet. Each surface treatment part shown can be applied as a first surface treatment part and a second surface treatment part.
- the first surface treatment unit and the second surface treatment unit are composed of a lower die 620 and an upper punch 610, and fine protrusions 611 are formed on the lower surface of the upper punch 610. .
- the shape of the fine protrusions 611 is not particularly limited as long as a fine embossed pattern can be formed on the surface when the separator sheet is pressed.
- it can be formed in various shapes such as straight, curved, hemispherical, cylindrical, prismatic, etc. It can be formed on all or part of the lower surface of the upper punch.
- the upper surface 621 of the lower die 620 is flat, and a fine raised pattern 601 is formed on the upper surface of the first separator sheet 110 pressed by the upper punch on which fine protrusions 611 are formed,
- the lower surface facing the lower die may have a flat shape without fine embossing patterns.
- a fine raised pattern 601 formed on the first separator sheet 110 and a fine raised pattern 601 formed on the second separator sheet can be arranged to overlap each other.
- the part where the fine raised pattern 601 is formed by the surface treatment unit may be the part where the first separator sheet 110 and the second separator sheet 310 are cut, and the center of the raised pattern 601 is the cutting line.
- the raised pattern 601 is formed to be placed on (630)
- the first separator sheet 110 and the second separator sheet 310 are cut by the friction force generated by the fine raised pattern 601.
- the first separator (111 in FIG. 1) and the second separator (311 in FIG. 1) can be maintained attached.
- the electrode assembly manufactured using such an electrode assembly manufacturing apparatus is a half-cell in which a first separator, a first unit electrode, and a second separator are sequentially stacked, or a first separator, a first unit electrode, a second separator, and a second separator. It may be a monocell in which two unit electrodes are sequentially stacked. Each of the first unit electrode and the second unit electrode may be an anode and a cathode, or a cathode and an anode.
- the outer periphery of the first separator and the second separator includes a surplus portion extending further than the outer periphery of the first unit electrode, and a fine raised pattern may be formed on the surplus portion of the first separator and the second separator. . That is, the fine raised pattern is formed on both outer peripheries of the first separator and the second separator that are parallel to each other, and the excessive portion may increase friction between the separators due to the fine raised pattern.
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Abstract
Description
Claims (13)
- 제1분리막롤에서 제1분리막 시트를 공급하는 제1분리막 공급부;제1전극롤에서 취출되는 제1전극을 커팅하여 제1단위전극을 공급하는 제1전극 공급부;제2분리막롤에서 제2분리막 시트를 공급하는 제2분리막 공급부;상기 제1분리막 시트 및 상기 제2분리막 시트를 파지하여 장력을 인가하는 주름방지부;상기 제1분리막 시트와 상기 제2분리막 시트에 미세 돋을무늬를 형성하는 표면처리부;상기 제1분리막 시트, 제1단위전극, 및 제2분리막 시트를 가열 및 가압하여 부착하는 라미네이션부; 및상기 제1분리막 시트 및 상기 제2분리막 시트를 커팅하는 커팅부;를 포함하는 전극조립체 제조장치.
- 제1항에 있어서, 제2전극롤에서 취출되는 제2전극을 커팅하여 제2단위전극을 공급하는 제2전극 공급부를 더 포함하고,상기 라미네이션부는 상기 제1분리막 시트, 제2단위전극, 제2분리막 시트 및 제2단위전극을 가압하여 부착하는 전극조립체 제조장치.
- 제1항에 있어서, 상기 표면처리부는 상기 주름방지부 내에 위치하는 전극조립체 제조장치.
- 제1항에 있어서, 상기 표면처리부는 상기 주름방지부의 후단에 배치되는 전극조립체 제조장치.
- 제1항에 있어서, 상기 주름방지부는,상기 제1분리막 시트의 주행 방향과 평행한 양 끝단을 파지하는 한 쌍의 제1그리퍼, 및 상기 제2분리막 시트의 주행 방향과 평행한 양 끝단을 파지하는 한 쌍의 제2그리퍼를 포함하는 전극조립체 제조장치.
- 제5항에 있어서, 상기 한 쌍의 제1그리퍼 및 한 쌍의 제2그리퍼는 상기 제1분리막 시트 및 제2분리막 시트가 팽팽한 상태가 되도록 상기 제1분리막 시트 및 상기 제2분리막 시트 각각의 양 끝단을 잡아당기는 전극조립체 제조장치.
- 제5항에 있어서, 상기 제1그리퍼 및 제2그리퍼는,순환식 이송 라인에 복수의 단위 그리퍼들이 배치된 형태로 구성되며,상기 순환식 이송 라인은 상기 제1분리막 시트 및 제2분리막 시트의 이송 속도와 동일한 속도로 상기 복수의 단위 그리퍼들을 이송하는 전극조립체 제조장치.
- 제7항에 있어서, 상기 복수의 단위 그리퍼들은 개별적으로 상기 제1분리막 시트 및 제2분리막 시트와 가까워지거나 또는 멀어지도록 이동 가능한 형태인 전극조립체 제조장치.
- 제1항에 있어서, 상기 표면처리부는 상기 제1분리막 시트의 표면처리를 위한 제1표면처리부, 및 상기 제2분리막 시트의 표면처리를 위한 제2표면처리부를 포함하고,상기 제1표면처리부 및 상기 제2표면처리부는 하부 다이, 및 상부 펀치로 구성되며,상기 상부 펀치에는 미세 돌기가 형성되어 있는 전극조립체 제조장치.
- 제1항에 있어서, 상기 표면처리부는 상기 제1분리막 시트 및 제2분리막 시트가 커팅되는 부분에 미세 돋을무늬를 형성하는 전극조립체 제조장치.
- 제10항에 있어서, 상기 제1분리막 시트와 상기 제2분리막 시트가 포개어 지도록 배치된 상태에서, 상기 제1분리막 시트에 형성되는 미세 돋을무늬와 상기 제2분리막 시트에 형성되는 미세 돋을무늬가 서로 중첩되도록 배치되는 전극조립체 제조장치.
- 제1항 내지 제11항 중 어느 한 항에 따른 전극조립체 제조장치를 사용하여 제조된 전극조립체에 있어서,제1분리막과 제2분리막의 외주변은 제1단위전극의 외주변 보다 더 연장된 잉여부를 포함하고,상기 제1분리막과 상기 제2분리막의 잉여부에는 미세 돋을무늬가 형성되어 있는 전극조립체.
- 제12항에 있어서, 상기 전극조립체는 제1분리막, 제1단위전극 및 제2분리막이 순차적으로 적층된 하프셀, 또는 제1분리막, 제1단위전극, 제2분리막 및 제2단위전극이 순차적으로 적층된 모노셀인 전극조립체.
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CN202380011652.2A CN117441249A (zh) | 2022-05-20 | 2023-04-28 | 防止隔膜折叠的电极组件制造设备和使用该电极组件制造设备制造的电极组件 |
EP23807810.9A EP4333146A1 (en) | 2022-05-20 | 2023-04-28 | Electrode assembly manufacturing device for preventing folding of separator, and electrode assembly manufactured using same |
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KR10-2022-0061860 | 2022-05-20 | ||
KR1020220061860A KR20230162235A (ko) | 2022-05-20 | 2022-05-20 | 분리막 접힘을 방지하기 위한 전극조립체 제조장치 및 이를 이용하여 제조된 전극조립체 |
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JP2014072114A (ja) * | 2012-10-01 | 2014-04-21 | Hitachi Power Solutions Co Ltd | 電極材料用ロールプレス設備及び電極シートの製造方法 |
KR20160141448A (ko) * | 2015-06-01 | 2016-12-09 | 주식회사 엘지화학 | 압연에 따른 전극 시트의 너울 또는 주름을 방지할 수 있는 전극 압연 장치 |
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KR20200113823A (ko) * | 2019-03-26 | 2020-10-07 | 주식회사 엘지화학 | 전극조립체의 제조 방법 및 그 제조 장치 |
KR20210058170A (ko) | 2019-11-13 | 2021-05-24 | 주식회사 엘지화학 | 전극 조립체 제조방법과 전극 조립체 제조장치 |
KR20220061860A (ko) | 2020-11-06 | 2022-05-13 | 제너럴 일렉트릭 레노바블레스 에스빠냐 에스.엘.유. | 전기 기계의 자석 |
-
2022
- 2022-05-20 KR KR1020220061860A patent/KR20230162235A/ko unknown
-
2023
- 2023-04-28 CN CN202380011652.2A patent/CN117441249A/zh active Pending
- 2023-04-28 EP EP23807810.9A patent/EP4333146A1/en active Pending
- 2023-04-28 WO PCT/KR2023/005893 patent/WO2023224287A1/ko active Application Filing
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JP2014072114A (ja) * | 2012-10-01 | 2014-04-21 | Hitachi Power Solutions Co Ltd | 電極材料用ロールプレス設備及び電極シートの製造方法 |
KR20160141448A (ko) * | 2015-06-01 | 2016-12-09 | 주식회사 엘지화학 | 압연에 따른 전극 시트의 너울 또는 주름을 방지할 수 있는 전극 압연 장치 |
KR20170114351A (ko) * | 2016-04-04 | 2017-10-16 | 주식회사 엘지화학 | 제조 공정성이 향상된 전극조립체 제조 장치 |
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KR20210058170A (ko) | 2019-11-13 | 2021-05-24 | 주식회사 엘지화학 | 전극 조립체 제조방법과 전극 조립체 제조장치 |
KR20220061860A (ko) | 2020-11-06 | 2022-05-13 | 제너럴 일렉트릭 레노바블레스 에스빠냐 에스.엘.유. | 전기 기계의 자석 |
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KR20230162235A (ko) | 2023-11-28 |
EP4333146A1 (en) | 2024-03-06 |
CN117441249A (zh) | 2024-01-23 |
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