WO2023055094A1 - 전극조립체 제조방법 및 이의 제조장치 - Google Patents
전극조립체 제조방법 및 이의 제조장치 Download PDFInfo
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- WO2023055094A1 WO2023055094A1 PCT/KR2022/014599 KR2022014599W WO2023055094A1 WO 2023055094 A1 WO2023055094 A1 WO 2023055094A1 KR 2022014599 W KR2022014599 W KR 2022014599W WO 2023055094 A1 WO2023055094 A1 WO 2023055094A1
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- WO
- WIPO (PCT)
- Prior art keywords
- unit cells
- electrode assembly
- separation film
- manufacturing
- winding
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 49
- 238000004804 winding Methods 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000011149 active material Substances 0.000 claims description 18
- 230000007423 decrease Effects 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- -1 Nickel metal hydride Chemical class 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
- H01M10/0459—Cells or batteries with folded separator between plate-like electrodes
-
- 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
-
- 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
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
-
- 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
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- 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
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
-
- 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 a method for manufacturing an electrode assembly and an apparatus for manufacturing the same.
- a secondary battery is a representative example of an electrochemical device using such electrochemical energy, and its use area is gradually expanding.
- Nickel metal hydride secondary batteries are mainly used as a power source for electric vehicles and hybrid electric vehicles, but studies using lithium secondary batteries with high energy density and discharge voltage are being actively conducted, and some commercialization is in progress.
- Such a lithium secondary battery has a structure in which an electrode assembly is embedded in a secondary battery case, and the electrode assembly is structurally a positive electrode sheet, a negative electrode sheet, a jelly roll-type electrode assembly manufactured by winding a separator film, a unit positive electrode, a unit negative electrode, and a stacked/folded electrode assembly that laminates separators, a stack/folded electrode assembly that winds unit cells such as bi-cells, full cells, or monocells with separator films, and a stack/lamination-type electrode assembly that laminates and laminates the unit cells. .
- the stack/folding type electrode assembly is simply wound after mounting the unit cells on the separation film, resulting in an unbonded area between the folding surface and the unit cells. Interfacial resistance in the unbonded region is increased, causing a problem of lithium precipitation.
- the electrodes included in the unit cells have a flat portion having a constant thickness of the active material layer and an inclined portion at both ends of which the thickness gradually decreases. At this time, the inclined portion is more prominent.
- lithium precipitated therefrom threatens the safety of the secondary battery, and there is a problem in that cycle characteristics are remarkably deteriorated.
- the present invention is to solve the above problems, and to provide an electrode assembly manufacturing method and manufacturing apparatus capable of improving the safety and cycle characteristics of a secondary battery by suppressing lithium precipitation at both ends where electrode assembly tabs are formed. do.
- an electrode assembly manufacturing method comprising the step of winding the heat-treated unit cells into the separation film.
- the unit cells may be mounted on the upper surface of the separation film so that the electrode tabs of the same polarity are at the same position in the vertical direction.
- step (b) may be performed by heating or hot air, and the heat treatment of step (b) may be performed at 50 ° C to 200 ° C.
- the electrodes included in the unit cells have a flat portion where the thickness of the active material layer is constant and an inclined portion where the thickness of the active material layer decreases at both ends of the flat portion,
- One end and the other end of the unit cells where the tabs are formed may include a region corresponding to the inclined portion.
- the winding speed of step (c) may be 5 ppm to 30 ppm.
- step (b) and the winding of step (c) may be performed continuously, and therefore, the heat treatment time is affected by the winding speed.
- the electrode assembly may be a single-sided electrode in which an active material layer is formed only on the inner side of an outermost electrode in a wound state.
- each of the unit cells may be a bicell, a full cell, or a monocell.
- a winder for winding an array in which the unit cells are mounted on the upper surface of the separation film
- An electrode assembly including one end and the other end of the tabs of the unit cells positioned at upper and lower portions in the longitudinal direction of the separation film parallel to the winding direction of the array, and a heater for heat-treating the separation film corresponding thereto A manufacturing device is provided.
- the heater may be a heating type or a hot air type.
- the heater may be formed entirely in a portion where the unit cells are mounted on the upper surface of the separation film.
- the winder may be located on one side of the heater.
- FIG. 1 is a schematic diagram of an electrode assembly manufacturing apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic side view of a unit cell of the present invention.
- FIG. 3 is a schematic cross-sectional view of the electrode assembly of the present invention.
- an electrode assembly manufacturing method comprising the step of winding the heat-treated unit cells into the separation film.
- a winding machine that winds the arrangement in which the unit cells are mounted on the upper surface of the separation film so that the electrode tabs of the same polarity are at the same position in the vertical direction after winding
- Electrodes including one end and the other end of the unit cells at the top and bottom in the longitudinal direction of the separation film parallel to the winding direction of the array and formed with tabs of the unit cells, and a heater for heat-treating the separation film corresponding thereto
- An assembly manufacturing apparatus is provided.
- FIG. 1 schematically illustrates an apparatus for manufacturing an electrode for a secondary battery according to an embodiment of the present invention.
- unit cells 108 (101, 102, 103, 104, 105, 106, 107) are mounted on the upper surface of a separator film 110.
- a winder 130 that winds the arrangement 120 in a state of being arranged, and tabs of the unit cells 108 located at upper and lower parts in the longitudinal direction of the separation film 110 parallel to the winding direction of the arrangement 120 It includes a heater 140 that heat-treats the formed one end and the other end thereof, and the separation film 110 corresponding thereto.
- a plurality of unit cells 108 are arranged on a separation film 110 to prepare an array 120.
- the unit cells 108 are arranged so that the electrode tabs of the same polarity are at the same position in the vertical direction after winding.
- Each of the unit cells 108 may be a bicell in which electrodes of the same polarity are positioned at both ends, a full cell in which electrodes of different polarities are positioned at both ends, or a monocell in the form including one electrode.
- the bi-cell may have a structure such as cathode/separator/anode/separator/cathode
- the full cell may have a structure such as cathode/separator/anode
- the monocell may have a structure of either an anode or a cathode and It may have a structure in which separators are stacked.
- the unit cells 108 should be arranged in a stacked form in which positive electrodes and negative electrodes are alternately arranged after winding.
- an inclination occurs at one end where the tab is formed and the other end thereof due to application of the electrode active material slurry during the manufacturing process of the electrode.
- FIG. 2 schematically shows a side view of the unit cell of the present invention.
- a unit cell 200 is composed of a plurality of electrodes 210 , 220 , and 230 .
- 2 shows a bi-cell composed of three electrodes 210, 220, and 230, but is not limited thereto.
- the electrodes 210, 220, and 230 have a structure in which active material layers 212, 222, and 232 are formed on current collectors 211, 221, and 231, respectively, and the current collectors 211, 221, and 231 Electrode tabs 211a, 221a, and 231a are respectively formed on one side of the .
- the active material layers 212, 222, and 232 when examining the active material layers 212, 222, and 232, the active material layers 212, 222, and 232 have a flat portion P and a flat portion P having a constant thickness. At both ends, the active material layers 212, 222, and 232 have inclined portions L 1 and L 2 in which the thickness decreases. Specifically, it has an inclined portion L 1 at one end in the direction in which the tab is formed and a corresponding inclined portion L 2 at the other end.
- the active material layer of the electrodes 210, 220, and 230 constituting the unit cell 200 has inclined portions L 1 and L 2 , when the unit cell 200 is wound with a separator film, the tab The inclined part (L 1 ) of one end and the inclined part (L 2 ) of the other end corresponding thereto are spaced apart from the separation film and a space is generated, so they are not adhered, and accordingly, lithium precipitation occurs in the region. well it happens
- the present invention with respect to the arrangement 120 in which such unit cells 108 are mounted on the separation film 110, one end where tabs are formed in the unit cells 108 And a process of heat-treating the other end thereof and the corresponding separation film 110 together is performed.
- one end and the other end of the unit cells 108 where the heat treatment is performed may be regions S 1 and S 2 including regions corresponding to the inclined portions of the electrodes.
- the heat treatment is performed by the heater 140 located at the top and bottom of the separation film 110 in the longitudinal direction, and at this time, the heat treatment may be performed by heating or hot air. Therefore, the heater 140 It may be a heating type or hot air type device.
- heat treatment may be performed at 50 °C to 200 °C.
- the unit cells 108 are wound into a separation film 110 .
- the heat treatment time may be influenced by a winding speed performed after the heat treatment.
- the winder 130 for winding the array 120 may be located on one side of the heater 140, and accordingly, the heat treatment of step (b) and the winding of step (c) are continuously performed. can Therefore, the heat treatment time may be affected by the winding speed.
- step (c) may be 5 ppm to 30 ppm.
- the heater 140 performing the heat treatment is not limited in size, but unit cells 108 are placed on the upper surface of the separation film 110 so that the unit cells 108 can be sufficiently heat treated.
- the mounted portion may be formed as a whole.
- the heat treatment time for the unit cell may be 3 seconds to 20 seconds.
- the electrode assembly manufactured in this way may be a single-sided electrode in which an active material layer is formed only on the inner side of the outermost electrode in a wound state.
- electrodes facing the separator film 110 in the two unit cells 106 and 107 at the end of winding in FIG. 1 may be single-sided electrodes.
- FIG. 3 a cross-sectional view of the electrode assembly in a wound form is shown in FIG. 3 below.
- the electrode assembly 300 has a structure in which unit cells are wound with a separator film 310 .
- each of the electrodes 320 and 330 included in the outermost unit cells 106 and 107 are active material layers 322 and 332 on current collectors 321 and 331, respectively, as an electrode assembly. It is a single-sided electrode formed only on the inner side of (300).
- the active material layer 321 is formed only on the lower surface of the current collector 321 in the upper electrode 320, and the lower electrode 330 has an active material layer (only on the upper surface of the current collector 331). 332) is formed.
- the outermost electrodes are single-sided electrodes, it is more preferable because there is no waste of the active material layer and the overall thickness of the electrode assembly is reduced.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (13)
- 단위셀들을 분리필름으로 권취한 전극조립체를 제조하는 방법으로서,(a) 상기 단위셀들을 상기 분리필름의 상면에 탑재하여 배열체를 제조하는 단계;(b) 상기 배열체의 권취방향과 평행한 상기 분리필름의 길이방향으로 상하부에서 상기 단위셀들의 탭이 형성된 일단부 및 이의 타단부와, 이에 대응되는 상기 분리필름을 열처리하는 단계; 및(c) 상기 열처리된 단위셀들을 상기 분리필름으로 권취하는 단계를 포함하는 전극조립체 제조방법.
- 제1항에 있어서,상기 단계 (a)는 권취 후 동일한 극성의 전극 탭들이 서로 상하 방향의 동일한 위치에 있도록, 상기 단위셀들을 상기 분리필름 상면에 탑재하는 것인 전극조립체 제조방법.
- 제1항에 있어서,상기 단계 (b)의 열처리는 가열 또는 열풍으로 수행되는 전극조립체 제조방법.
- 제1항에 있어서,상기 단계 (b)의 열처리는 50℃ 내지 200℃로 수행되는 전극조립체의 제조방법.
- 제1항에 있어서,상기 단위셀들에 포함되는 전극은, 활물질층의 두께가 일정한 평탄부 및 상기 평탄부의 양단에서 활물질층의 두께가 감소하는 경사부를 가지며,상기 단위셀들의 탭이 형성된 일단부 및 이의 타단부는, 상기 경사부에 대응되는 영역을 포함하는 전극조립체의 제조방법.
- 제1항에 있어서,상기 단계 (c)의 권취 속도는 5ppm 내지 30ppm인 전극조립체의 제조방법.
- 제1항에 있어서,상기 단계 (b)의 열처리와 단계 (c)의 권취는 연속적으로 이루어지는 전극조립체 제조방법.
- 제1항에 있어서,상기 전극조립체는 권취된 상태에서 최외각에 위치하는 전극이 내측에만 활물질층이 형성되어 있는 단면 전극인 전극조립체 제조방법.
- 제1항에 있어서,상기 단위셀들은 각각 바이셀, 풀셀 또는 모노셀인 전극조립체 제조방법.
- 단위셀들을 분리필름으로 권취한 전극조립체를 제조하는 장치로서,상기 단위셀들이 상기 분리필름의 상면에 탑재된 상태의 배열체를 귄취하는 권취기, 및상기 배열체의 권취방향과 평행한 상기 분리필름의 길이방향으로 상하부에 위치하여 상기 단위셀들의 탭이 형성된 일단부 및 이의 타단부와, 이에 대응되는 상기 분리필름을 열처리하는 히팅기를 포함하는 전극조립체 제조장치.
- 제10항에 있어서,상기 히팅기는 가열식 또는 열풍식인 전극조립체 제조장치.
- 제10항에 있어서,상기 히팅기는 상기 단위셀들이 상기 분리필름의 상면에 탑재되는 부분 전체적으로 형성되어 있는 전극조립체 제조장치.
- 제10항에 있어서,상기 권취기는 상기 히팅기의 일측에 위치하는 전극조립체 제조장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2023522535A JP2023547799A (ja) | 2021-09-29 | 2022-09-28 | 電極組立体の製造方法およびその製造装置 |
US18/036,562 US20240014433A1 (en) | 2021-09-29 | 2022-09-28 | Method of Manufacturing an Electrode Assembly and Manufacturing Apparatus Thereof |
CN202280007100.XA CN116349051A (zh) | 2021-09-29 | 2022-09-28 | 制造电极组件的方法和设备 |
EP22876866.9A EP4216329A4 (en) | 2021-09-29 | 2022-09-28 | METHOD FOR PRODUCING AN ELECTRODE ARRANGEMENT AND DEVICE FOR PRODUCING SAME |
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KR10-2021-0128689 | 2021-09-29 | ||
KR1020210128689A KR20230045867A (ko) | 2021-09-29 | 2021-09-29 | 전극조립체 제조방법 및 이의 제조장치 |
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US (1) | US20240014433A1 (ko) |
EP (1) | EP4216329A4 (ko) |
JP (1) | JP2023547799A (ko) |
KR (1) | KR20230045867A (ko) |
CN (1) | CN116349051A (ko) |
WO (1) | WO2023055094A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20090003823A (ko) * | 2007-07-04 | 2009-01-12 | 주식회사 엘지화학 | 스택-폴딩형 전극조립체 및 그것의 제조방법 |
KR20150035123A (ko) * | 2013-09-27 | 2015-04-06 | 주식회사 엘지화학 | 가열 부재를 포함하는 전지셀 절곡 장치 |
KR20180044769A (ko) * | 2016-10-24 | 2018-05-03 | 주식회사 엘지화학 | 스택-폴딩 셀의 제조방법 |
WO2019239988A1 (ja) * | 2018-06-11 | 2019-12-19 | 株式会社村田製作所 | 電池用電極およびその製造方法 |
KR20200141859A (ko) * | 2019-06-11 | 2020-12-21 | 주식회사 엘지화학 | 전극조립체 및 그 제조방법 |
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KR20090003823A (ko) * | 2007-07-04 | 2009-01-12 | 주식회사 엘지화학 | 스택-폴딩형 전극조립체 및 그것의 제조방법 |
KR20150035123A (ko) * | 2013-09-27 | 2015-04-06 | 주식회사 엘지화학 | 가열 부재를 포함하는 전지셀 절곡 장치 |
KR20180044769A (ko) * | 2016-10-24 | 2018-05-03 | 주식회사 엘지화학 | 스택-폴딩 셀의 제조방법 |
WO2019239988A1 (ja) * | 2018-06-11 | 2019-12-19 | 株式会社村田製作所 | 電池用電極およびその製造方法 |
KR20200141859A (ko) * | 2019-06-11 | 2020-12-21 | 주식회사 엘지화학 | 전극조립체 및 그 제조방법 |
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JP2023547799A (ja) | 2023-11-14 |
US20240014433A1 (en) | 2024-01-11 |
EP4216329A1 (en) | 2023-07-26 |
CN116349051A (zh) | 2023-06-27 |
KR20230045867A (ko) | 2023-04-05 |
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