WO2022080968A1 - 전극 정렬부를 포함하는 전극 제조장치 및 이를 포함하는 전극조립체 제조장치 - Google Patents
전극 정렬부를 포함하는 전극 제조장치 및 이를 포함하는 전극조립체 제조장치 Download PDFInfo
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- WO2022080968A1 WO2022080968A1 PCT/KR2021/014401 KR2021014401W WO2022080968A1 WO 2022080968 A1 WO2022080968 A1 WO 2022080968A1 KR 2021014401 W KR2021014401 W KR 2021014401W WO 2022080968 A1 WO2022080968 A1 WO 2022080968A1
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- electrode
- unit
- manufacturing apparatus
- separator
- transfer
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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
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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
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/007—Control means comprising cameras, vision or image processing systems
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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
- B26D7/18—Means for removing cut-out material or waste
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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
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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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
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
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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
- H01M10/05—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
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
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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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
- H01M50/406—Moulding; Embossing; Cutting
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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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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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 manufacturing apparatus including an electrode alignment part and an electrode assembly manufacturing apparatus including the same. Specifically, the transfer direction of the unit electrodes can be adjusted so that the distance between the ends of the cutting line of the unit electrodes cut from the electrode sheet can be maintained constant, and the alignment of the anode and the cathode can be adjusted before the lamination step of the electrode assembly. It relates to an electrode manufacturing apparatus including an alignment part and an electrode assembly manufacturing apparatus including the same.
- Lithium secondary batteries are not only used as an energy source for mobile devices and wearable devices, but also widely used as an energy source for electric vehicles and hybrid electric vehicles.
- a lithium secondary battery is a cylindrical secondary battery or a prismatic secondary battery in which the electrode assembly is embedded in a cylindrical or prismatic metal can depending on the shape of the battery case, and a pouch-type secondary battery in which the electrode assembly is embedded in a pouch-type case of an aluminum laminate sheet. are classified
- the electrode assembly may be manufactured by laminating a separator such that a separator is interposed between the positive electrode and the negative electrode to prepare a monocell, and stacking a plurality of the monocells, or by placing the monocell on a separation film and then winding it up.
- the unit cathode cut from the cathode sheet is attached to the first separator sheet, and the unit cathode cut from the anode sheet is attached to the second separator sheet, and then the first separator sheet to which the unit cathode is attached and the The second separator sheet to which the unit cathode is attached is laminated by lamination, heating, and pressurization. Additionally, an individual monocell can be manufactured by cutting the separator sheet between the electrodes.
- Patent Document 1 discloses a method for manufacturing a monocell in which the position of a negative electrode bonded to a belt-shaped separator is detected by a bonding position detection camera for negative electrodes, and the position of the positive electrode is corrected by a positive electrode alignment mechanism based on the detected position of the negative electrode.
- Patent Document 1 discloses a method of manufacturing a monocell by disposing a positive electrode and a negative electrode on each of both surfaces of one separator, and then disposing another separator on the outer surface of the other one of the positive and negative electrodes that does not face the separator. However, it does not disclose a method for controlling the distance between the cut unit electrodes from the electrode sheet to be constant.
- Patent Document 2 in order to accurately align the spacing of the unit cells and thereby improve the stacking quality of the unit cells, the position of the larger first electrode among the first electrode and the second electrode included in the unit cell is measured, Disclosed is an apparatus for manufacturing a secondary battery that adjusts an interval between a unit cell and a unit cell disposed on a separation sheet.
- Patent Document 2 merely suggests a technique in which the separation sheet is disposed so that the distance between the unit cells including the positive electrode and the negative electrode is kept constant.
- the present invention is to solve the above problems, and it is possible to uniformly control the distance between the first unit electrode attached to the first separator sheet and the second unit electrode attached to the second separator sheet, and through this To provide an electrode manufacturing apparatus capable of adjusting the bonding position of the first unit electrode and the second unit electrode to match in advance before the first unit electrode and the second unit electrode are laminated, and an electrode assembly manufacturing apparatus including the same do.
- a first electrode manufacturing apparatus for achieving this object is a first electrode transfer unit for transferring a first electrode having an electrode coating layer formed on one or both surfaces, and the first electrode transferred by the first electrode transfer unit.
- a first cutter that cuts the electrode to form a first unit electrode, a first separator transfer unit disposed on one surface of the first electrode transfer unit and transfers the first separator, and a first sensor unit that detects the position of the first unit electrode , and a first alignment unit for adjusting a distance between the first unit electrodes seated on one surface of the first separator by adjusting a transport speed of each of the outer periphery parallel to the transport direction of the first unit electrode.
- the first sensor unit includes two or more sensors for sensing a speed of an outer periphery parallel to a transport direction of the first unit electrode, and the first alignment unit includes the first unit electrode. At least two correction rolls disposed on one surface of one unit electrode may be included.
- the first alignment part when the cut outer periphery of the first unit electrode measured by the first sensor unit is not vertically arranged with respect to the transport direction, the first alignment part The supply speed of each of both ends of the first unit electrode supplied to the first separator can be adjusted.
- the present invention also provides an electrode assembly manufacturing apparatus, wherein the electrode assembly manufacturing apparatus includes a first electrode supply unit for transferring the first unit electrode manufactured in the first electrode manufacturing apparatus, and a position of the first unit electrode. a third sensor unit for sensing, a second electrode manufacturing apparatus for manufacturing a second unit electrode, and a coupling unit for manufacturing a monocell by combining the first unit electrode and the second unit electrode;
- the apparatus includes a second electrode transfer unit for transferring a second electrode having an electrode coating layer formed on one or both surfaces thereof, and a second cutter for cutting the second electrode transferred by the second electrode transfer unit to form a second unit electrode , a second separator transfer unit disposed on one surface of the second electrode transfer unit and transferring the second separator, a second sensor unit sensing the position of the second unit electrode, and an amount parallel to the transfer direction of the second unit electrode It may include a second alignment unit for adjusting the distance between the second unit electrodes seated on one surface of the second separator by adjusting the transfer speed of each of the ends.
- the second alignment unit may include, in the coupling unit, the second unit electrode and the first unit electrode according to the position of the first unit electrode sensed by the third sensor unit.
- the spacing between the second unit electrodes may be adjusted to match.
- the second sensor unit includes at least two sensors for sensing the outer peripheral positions on both sides parallel to the transport direction of the second unit electrode
- the third sensor unit includes the first Two or more sensors may be included to sense the outer peripheral positions on both sides parallel to the transport direction of the unit electrode
- the second alignment unit may include at least two correction rolls disposed on one surface of the second unit electrode.
- the compensating rolls are disposed on the upper surface of the second unit electrode, and a conveying roll is disposed below the compensating rolls as a lower surface of the second unit electrode, and the conveying roll comprises: A plurality of rollers capable of speed control in the same manner as the rotation speed of each of the correction rolls may be combined.
- the coupling part may include a rolling roll for laminating the first unit electrode and the second unit electrode.
- a third cutter for manufacturing a unit monocell by cutting the first separator and the second separator of the monocell may be included.
- the electrode assembly manufacturing apparatus may further include a vision inspection unit for inspecting the alignment state of the first unit electrode and the second unit electrode of the monocell coupled in the coupling unit.
- control variable of the second alignment unit may be adjusted according to the result of the vision inspection unit.
- the control variable of the second alignment unit is a rotation speed of the correction roll of the second alignment unit.
- the present invention can also provide the means for solving the above problems in various combinations as needed.
- the distance between the unit electrodes attached to the separator sheet is fixed by controlling the transport speed of the outer periphery on both sides parallel to the transport direction of the unit electrodes while sensing the distance between the unit electrodes attached to the separator. can do it
- the positive electrode and the negative electrode are sensed by detecting the position of one of the positive electrode and the negative electrode and adjusting the position of the other electrode.
- the stacking position of the positive electrode and the negative electrode can be adjusted to match, so that the occurrence of a defect in which the position of the positive electrode and the negative electrode does not match can be prevented in advance.
- the present invention it is possible to prevent a decrease in energy density due to a decrease in the capacity of the battery or an increase in the volume of the electrode assembly due to mismatch between the positions of the positive electrode and the negative electrode.
- FIG. 1 is a perspective view of an electrode manufacturing apparatus according to the present invention.
- FIG. 2 is a perspective view of an electrode assembly manufacturing apparatus according to the present invention.
- FIG 3 is a side view of the monocell passing through the vision inspection unit in the present invention.
- FIG. 1 is a perspective view of an electrode manufacturing apparatus according to the present invention.
- an electrode manufacturing apparatus 100 is a first electrode manufacturing apparatus, and the first electrode may be an anode or a cathode.
- the electrode manufacturing apparatus 100 includes a first electrode transport unit 110 for transporting a first electrode 111 having an electrode coating layer formed on one or both surfaces thereof, and the first electrode transported by the first electrode transport unit 110 . 111) to form the first unit electrode 112, the first cutter 120 is disposed on one surface of the first electrode transfer unit 110, and the first separator transfer unit 130 transfers the first separator 131 , the first sensor unit 140 for detecting the position of the first unit electrode 112, and the outer periphery 114 parallel to the transport direction A of the first unit electrode 112 by adjusting the transport speed of each. , a first alignment unit 150 for adjusting the spacing between the first unit electrodes 112 seated on one surface of the first separator 131 .
- the first electrode 111 is in the form of an electrode roll on which an electrode sheet is wound, and the electrode sheet has an electrode coating layer formed on one or both surfaces of an electrode foil.
- An uncoated region without an electrode coating layer may be formed on at least one side of the electrode sheet on which the electrode coating layer is formed, and the first electrode may be in a state in which an electrode tab is formed by punching out a portion of the uncoated region.
- the first separator 131 may be in the form of a separator roll in which a separator sheet is wound, or may have a size with a surplus extending further from the outer periphery of one first unit electrode.
- the first sensor unit 140 includes sensors 141 and 142 for detecting the speed of the outer periphery 114 parallel to the transport direction A of the first unit electrode 112 .
- Each of the sensors is disposed on the outer peripheral side parallel to the transport direction of the first unit electrode 112 .
- the sensors 141 and 142 include a transmitter for transmitting a signal and a receiver for receiving the signal, and the transmitter and the receiver are disposed to face each other.
- the position at which the first unit electrode is disposed from whether the light or wavelength emitted by the transmitter is received by the receiver and the time of reception and non-reception , the traveling speed of the first unit electrode, the alignment degree and spacing of both sides of the first unit electrode may be derived.
- a calibration signal may be sent to the first alignment unit to adjust.
- the sensors 141 and 142 can measure the distance between the first unit electrodes by sensing the positions of both ends of the cut outer periphery 118 of the first unit electrodes, the specific positions are not specified, In order to increase the precision of the measurement, as shown in FIG. 1 , it is preferable that the first unit electrode is disposed on the side of the outer periphery 114 parallel to the transport direction.
- the first alignment unit 150 includes two correction rolls 151 disposed on one surface of the first unit electrode 112 .
- the measured value is sent to the first alignment unit 150 to Since the running direction of one unit electrode can be adjusted, the correction rolls 151 of the first alignment unit 150 are respectively supplied to both ends of the first unit electrode 112 in the y direction, which is supplied to the first separator 131 . You can adjust the speed.
- the rotation speed of the compensation rolls 151 can be adjusted independently of each other, and any one of the compensation rolls 151 increases or decreases the rotation speed in each of the first sensor units 140 .
- the measured distance between the first unit electrodes may be adjusted to fall within an allowable range.
- the distance between the first unit electrodes measured by the sensor 141 located on the side where the first electrode tab 113 is located is the sensor 142 located on the side without the electrode tab.
- the rotation speed of the correction roll positioned on the electrode tab side may be increased.
- the traveling direction can be changed by rotating the first unit electrode with respect to the x-direction central axis of the first unit electrode 112 .
- the first separator is partially stretched or the first electrode is deflected. Even if a deviation occurs in the traveling direction of the unit electrodes, the distance between the first unit electrodes may be maintained constant.
- the correction rolls 151 are disposed on the upper surface of the first unit electrode 112 , respectively, at both ends of the first unit electrode in the y direction, not at the center of the first unit electrode.
- the position of the correction roll in the first alignment unit is not particularly limited as long as the driving direction can be changed by rotating the first unit electrode with respect to the x-direction central axis of the first unit electrode, but considering the efficiency of controlling the first unit electrode,
- the first unit electrode is disposed on the outer periphery of both ends parallel to the transport direction.
- the first unit electrode with the changed traveling direction is transferred to be attached to the first separator. Since the driving direction may be changed again, the positions of the first sensor unit and the first alignment unit need to be disposed close to each other.
- the first sensor unit 140 includes the first unit electrode 112b transferred to be attached to the first separator 131 and the first unit electrode 112a transferred immediately after the first unit electrode 112b. ) are arranged to measure the spacing between The first alignment unit 150 may be disposed on the first unit electrode 112b, and the first alignment unit 150 may be disposed on the first unit electrode 112b according to the distance between the first unit electrodes measured by the first sensor unit 140 .
- the traveling speed and the traveling direction of one unit electrode 112b may be controlled.
- the first electrode, the first unit electrode, and the first separator include rollers or conveyors disposed below them. It can be transported through a type of transport device.
- the electrode may be manufactured in a region in which the central axes of the first electrode, the first unit electrode, and the first separator and the central axis in the transport direction of the correction roll are all parallel.
- the first unit electrode can be attached to the first separator by adjusting the relative speed of both outer peripheral sides parallel to the transport direction of the first unit electrode based on the transport speed of the central axis in the transport direction of the first unit electrode.
- FIG. 2 is a perspective view of an electrode assembly manufacturing apparatus according to the present invention.
- the electrode assembly manufacturing apparatus includes a first electrode supply unit 300 for transferring the first unit electrode 112 manufactured in the first electrode manufacturing apparatus 100 of FIG. 1 , and a first unit
- the third sensor unit 340 for detecting the position of the electrode 112 , the second electrode manufacturing apparatus 200 for manufacturing the second unit electrode 212 , and the first unit electrode 112 and the second unit electrode It includes a coupling unit 360 for manufacturing a monocell by combining 212, and the second electrode manufacturing apparatus 200 transports the second electrode 211 having an electrode coating layer formed on one or both sides.
- a second electrode transfer unit 210, a second cutter 220 for cutting the second electrode 211 transferred by the second electrode transfer unit 210 to form a second unit electrode 212, a second electrode transfer unit ( A second separator transfer unit 230 disposed on one surface of the 210 and transfers the second separator 231, a second sensor unit 240 for detecting the position of the second unit electrode 212, and a second unit electrode ( A second alignment part 250 for adjusting the distance between the second unit electrodes 212 seated on one surface of the second separator 231 by adjusting the transport speed of both ends parallel to the transport direction of the 212) includes
- the description of the first electrode transfer unit, the first cutter, the first separator transfer unit, the first sensor unit, and the first alignment unit in the first electrode manufacturing apparatus 100 is the above description of the second electrode manufacturing apparatus 200 . Since the same can be applied to each of the second electrode transfer unit 210 , the second cutter 220 , the second separator transfer unit 230 , the second sensor unit 240 , and the second alignment unit 250 , a detailed description is given below. can be understood within the same scope.
- the third sensor unit 340 measures the spacing between the first unit electrodes 112 transferred to overlap the second unit electrodes 212 .
- the third sensor unit 340 includes sensors 341 and 342 for detecting the speed of the outer periphery parallel to the transport direction of the first unit electrode 112 .
- Each of the sensors is disposed on the outer peripheral side parallel to the transport direction of the first unit electrode 112 .
- the operating principle and function of the sensors 341 and 342 are the same as those of the sensors 141 and 142 described in the description of FIG. 1 .
- the second alignment unit 250 includes the second unit electrode 212 in the coupling unit 360 and the first unit electrode 112 . ), the spacing between the second unit electrodes 212 may be adjusted.
- the second sensor unit 240 includes sensors 241 and 242 for sensing the positions of both sides of the outer periphery 214 parallel to the transport direction of the second unit electrode 212 , and the third sensor unit 340 . includes sensors 341 and 342 for sensing both outer peripheral positions parallel to the transport direction of the first unit electrode, and the second alignment unit 250 is disposed on the upper surface of the second unit electrode 212 . Includes two correction rolls (251).
- a calibration signal is sent to the second alignment unit 250 to measure whether the intervals are constant, and to change the conveying speed of the outer periphery parallel to the conveying direction of the second unit electrode 212 when the intervals do not match. send.
- the traveling direction and position of the second unit electrode may be corrected by controlling the rotation speed of each of the correction rolls for transporting the second unit electrode to be changed.
- the first sensor unit 240 includes the second unit electrode 212b transferred to be attached to the second separator 131 and the second unit electrode 212a transferred immediately after the second unit electrode 212b. ) are arranged to measure the spacing between The third sensor unit 340 is arranged to measure the distance between the first unit electrodes 112 .
- the second alignment unit 250 is disposed on the second unit electrode 212b, and the second unit electrode is disposed to match the interval between the first unit electrodes 112 measured by the third sensor unit 340 . Transfer to 1 unit electrode.
- the second alignment unit 250 is configured to It is possible to control the traveling speed and the traveling direction of the two-unit electrode 212 .
- the correction rolls 251 are disposed on the upper surface of the second unit electrode 212
- the transfer roll 215 is disposed on the lower surface of the correction rolls 251 as the lower surface of the second unit electrode 212 .
- the transfer roll 215 may be formed in a form in which a plurality of rollers capable of speed control in the same manner as the rotational speed of each of the correction rolls 251 are combined.
- the entire length of the transfer roll 215 may be longer than the length of the second unit electrode in the y-axis direction.
- a pair of rolling rolls 361 are included, and the rolling rolls 361 may be selectively heated.
- FIG 3 is a side view of the monocell passing through the vision inspection unit in the present invention.
- the first unit electrode 112 is disposed on the first separator 131
- the second unit electrode 212 is disposed on the second separator 231 .
- a monocell with improved bonding strength between the first separator 131 , the first unit electrode 121 , the second unit electrode 212 , and the second separator 231 can be manufactured.
- the electrode assembly manufacturing apparatus includes a third cutter 320 for manufacturing the unit monocell 380 by cutting the first separator 131 and the second separator 231 of the monocell, and the unit and a vision inspection unit 400 for inspecting the alignment state of the first unit electrode 112 and the second unit electrode 212 of the monocell 380 .
- the second alignment unit adjusts the control variable of the second alignment unit so that the first unit electrode and the second unit electrode coincide with each other. can adjust the position and running direction of the second unit electrode.
- the present invention in the stage before the monocell is manufactured, it is possible to check whether the alignment of the positive electrode and the negative electrode matches, and thus it is possible to prevent the electrode assembly having poor lamination from being manufactured.
- the present invention provides a first electrode transfer unit for transferring a first electrode having an electrode coating layer formed on one or both surfaces thereof, and a first electrode transfer unit for cutting the first electrode transferred by the first electrode transfer unit to form a first unit electrode a cutter, a first separator transfer unit disposed on one surface of the first electrode transfer unit and transferring the first separator, a first sensor unit sensing the position of the first unit electrode, and a direction parallel to the transfer direction of the first unit electrode
- An electrode manufacturing apparatus including a first aligning part for adjusting an interval between the first unit electrodes seated on one surface of the first separator by controlling the transfer speed of each of both ends, and an electrode assembly manufacturing apparatus including the electrode manufacturing apparatus
- the positive electrode and the negative electrode can be stacked while checking whether the positions of the positive electrode and the negative electrode match. It is possible to prevent the occurrence of the bar, so it can be used industrially.
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Abstract
Description
Claims (11)
- 일면 또는 양면에 전극코팅층이 형성되어 있는 제1전극을 이송하는 제1전극 이송부;상기 제1전극 이송부에 의해서 이송되는 상기 제1전극을 절단하여 제1단위전극을 형성하는 제1컷터;상기 제1전극 이송부의 일면에 배치되며 제1분리막을 이송하는 제1분리막 이송부;상기 제1단위전극의 위치를 감지하는 제1센서부; 및상기 제1단위전극의 이송 방향과 평행한 외주변 각각의 이송 속도를 조절하여, 상기 제1분리막의 일면에 안착시키는 상기 제1단위전극들의 간격을 조절하는 제1정렬부;를 포함하는 제1전극 제조장치.
- 제1항에 있어서,상기 제1센서부는 상기 제1단위전극의 이송 방향과 평행한 외주변의 속도를 감지하는 센서를 2개 이상 포함하고,상기 제1정렬부는 상기 제1단위전극의 일면에 배치되는 적어도 2개 이상의 보정롤을 포함하는 제1전극 제조장치.
- 제2항에 있어서,상기 제1센서부에서 측정한 상기 제1단위전극의 커팅된 외주변이 상기 이송 방향에 대해 수직으로 배치되지 않은 경우, 상기 제1정렬부는 상기 제1분리막으로 공급하는 상기 제1단위전극 양 끝단 각각의 공급 속도를 조절하는 제1전극 제조장치.
- 제1항 내지 제3항 중 어느 한 항에 따른 제1전극 제조장치에서 제조된 상기 제1단위전극을 이송하는 제1전극 공급부;상기 제1단위전극의 위치를 감지하는 제3센서부;제2단위전극을 제조하는 제2전극 제조장치; 및상기 제1단위전극과 상기 제2단위전극을 결합하여 모노셀을 제조하는 결합부;를 포함하는 전극조립체 제조장치에 있어서,상기 제2전극 제조장치는일면 또는 양면에 전극코팅층이 형성되어 있는 제2전극을 이송하는 제2전극 이송부;상기 제2전극 이송부에 의해서 이송되는 상기 제2전극을 절단하여 제2단위전극을 형성하는 제2컷터;상기 제2전극 이송부의 일면에 배치되며 제2분리막을 이송하는 제2분리막 이송부;상기 제2단위전극의 위치를 감지하는 제2센서부; 및상기 제2단위전극의 이송 방향과 평행한 양 끝단 각각의 이송 속도를 조절하여 상기 제2분리막의 일면에 안착시키는 상기 제2단위전극들의 간격을 조절하는 제2정렬부;를 포함하는 전극조립체 제조장치.
- 제4항에 있어서,상기 제2정렬부는, 상기 제3센서부에서 감지하는 제1단위전극의 위치에 따라 상기 결합부에서 상기 제2단위전극이 상기 제1단위전극과 일치되도록 상기 제2단위전극들의 간격을 조절하는 전극조립체 제조장치.
- 제4항에 있어서,상기 제2센서부는 상기 제2단위전극의 이송 방향과 평행한 양측 외주변 위치를 감지하는 센서를 2개 이상 포함하고,상기 제3센서부는 상기 제1단위전극의 이송 방향과 평행한 양측 외주변 위치를 감지하는 센서를 2개 이상 포함하며,상기 제2정렬부는 상기 제2단위전극의 일면에 배치되는 적어도 2개 이상의 보정롤을 포함하는 전극조립체 제조장치.
- 제6항에 있어서,상기 제2단위전극의 상면에는 상기 보정롤들이 배치되고, 상기 제2단위전극의 하면으로서 상기 보정롤들의 하부에는 이송롤이 배치되며,상기 이송롤은 상기 각각의 보정롤들의 회전 속도와 동일하게 속도 제어가 가능한 복수의 롤러들이 결합된 형태로 이루어진 전극조립체 제조장치.
- 제4항에 있어서,상기 결합부는 상기 제1단위전극과 상기 제2단위전극을 라미네이션하기 위한 압연롤을 포함하는 전극조립체 제조장치.
- 제4항에 있어서,상기 모노셀의 제1분리막과 제2분리막을 컷팅하여 단위 모노셀을 제조하는 제3컷터를 포함하는 전극조립체 제조장치.
- 제9항에 있어서,상기 단위 모노셀의 제1단위전극과 제2단위전극의 정렬 상태를 검사하는 비전검사부를 더 포함하는 전극조립체 제조장치.
- 제10항에 있어서,상기 비전검사부의 결과에 따라 상기 제2정렬부의 제어변수를 조정하는 전극조립체 제조장치.
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| CN202180024094.4A CN115336059B (zh) | 2020-10-16 | 2021-10-15 | 包括电极对准单元的电极制造设备和包括该电极制造设备的电极组件制造设备 |
| ES21880614T ES3056485T3 (en) | 2020-10-16 | 2021-10-15 | Electrode manufacturing apparatus including electrode alignment unit and electrode assembly manufacturing apparatus including the same |
| US17/914,162 US12552062B2 (en) | 2020-10-16 | 2021-10-15 | Electrode manufacturing apparatus including electrode alignment unit and electrode assembly manufacturing apparatus |
| EP21880614.9A EP4109613B1 (en) | 2020-10-16 | 2021-10-15 | Electrode manufacturing apparatus including electrode alignment unit and electrode assembly manufacturing apparatus including the same |
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| WO2025210577A1 (en) * | 2024-04-04 | 2025-10-09 | G.D S.P.A. | Apparatus and method for creating an internal assembly, preferably for an electrochemical cell intended for producing batteries |
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| EP4213256A4 (en) * | 2021-01-08 | 2024-12-25 | LG Energy Solution, Ltd. | ELECTRODE CELL MANUFACTURING APPARATUS AND CONTROL METHOD THEREFOR |
| CN215262190U (zh) * | 2021-07-26 | 2021-12-21 | 宁德时代新能源科技股份有限公司 | 一种检测装置及极片延展设备 |
| CN117133961A (zh) * | 2022-05-20 | 2023-11-28 | 宁德时代新能源科技股份有限公司 | 纠偏方法、装置、叠片机和存储介质 |
| DE212024000147U1 (de) * | 2023-02-15 | 2025-09-24 | Sk On Co., Ltd. | Elektrodenplattenausrichtungsvorrichtung |
| EP4456224B1 (de) * | 2023-04-27 | 2025-12-10 | Grob-Werke GmbH & Co. KG | Batteriezellstapelherstellverfahren, batteriezellstapelherstellvorrichtung und computerprogramm |
| KR20250071519A (ko) * | 2023-11-15 | 2025-05-22 | 삼성에스디아이 주식회사 | 이차전지 제조장치 및 이차전지 제조방법 |
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| KR102752729B1 (ko) | 2025-01-10 |
| KR20220050708A (ko) | 2022-04-25 |
| US12552062B2 (en) | 2026-02-17 |
| CN115336059B (zh) | 2025-09-09 |
| CN115336059A (zh) | 2022-11-11 |
| EP4109613A1 (en) | 2022-12-28 |
| US20230125899A1 (en) | 2023-04-27 |
| ES3056485T3 (en) | 2026-02-20 |
| EP4109613B1 (en) | 2025-11-26 |
| EP4109613A4 (en) | 2024-06-12 |
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