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WO2024162701A1 - Appareil d'alimentation de plaque d'électrode - Google Patents

Appareil d'alimentation de plaque d'électrode Download PDF

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Publication number
WO2024162701A1
WO2024162701A1 PCT/KR2024/001274 KR2024001274W WO2024162701A1 WO 2024162701 A1 WO2024162701 A1 WO 2024162701A1 KR 2024001274 W KR2024001274 W KR 2024001274W WO 2024162701 A1 WO2024162701 A1 WO 2024162701A1
Authority
WO
WIPO (PCT)
Prior art keywords
cam
feeding device
plate feeding
follower
gripper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2024/001274
Other languages
English (en)
Korean (ko)
Inventor
김은빈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innometry Co Ltd
Original Assignee
Innometry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Innometry Co Ltd filed Critical Innometry Co Ltd
Publication of WO2024162701A1 publication Critical patent/WO2024162701A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/51—Cam mechanisms
    • B65H2403/512—Cam mechanisms involving radial plate cam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • 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

Definitions

  • the present invention relates to a feeding device for supplying plates in a square battery cell manufacturing device, and more specifically, to a feeding device for gripping and supplying a positive plate, a negative plate, and a separator all at once.
  • a chemical battery is a battery composed of a pair of electrodes, a positive and negative plate, and an electrolyte.
  • the amount of energy that can be stored varies depending on the materials that make up the electrodes and the electrolyte.
  • These chemical batteries are divided into primary batteries, which are used only for single-discharge purposes because the charging reaction is very slow, and secondary batteries, which can be reused through repeated charging and discharging. Recently, the use of secondary batteries has been increasing due to the advantage of being able to be charged and discharged.
  • Secondary batteries are being applied to various technological fields across industries due to their advantages. They are not only widely used as an energy source for mobile communication devices such as smartphones, but are also attracting attention as an energy source for electric vehicles.
  • These secondary batteries are made up of a positive electrode, a separator, and a negative electrode sequentially stacked and immersed in an electrolyte. There are two main ways to manufacture the internal cells of these secondary batteries.
  • the separator In the zigzag type (also called the 'z-folding' type), which is one of the lamination methods used to manufacture the internal cells of medium- to large-sized secondary batteries, i.e., square secondary batteries, the separator is folded in a zigzag shape, and the negative and positive plates are alternately inserted between them and laminated.
  • the zigzag type also called the 'z-folding' type
  • the separator is folded in a zigzag shape, and the negative and positive plates are alternately inserted between them and laminated.
  • Patent Publication of Patent Publication No. 10-2009-0030175 states that the positive and negative plates placed on the cartridge are each transferred to an alignment tray by a transfer robot, aligned on the alignment tray, and then transferred to a stacking tray.
  • a separator is released onto the stacking tray and covers the positive or negative plates. As this process is repeated, a separator is interposed between the plates, and the plates are stacked.
  • Feeder devices that grip positive and negative plates with a separator interposed between them and supply them to a stack table are known. These feeder devices employ various methods to grip positive and negative plates and separators, and their structures are complex and require many components, and much effort is required to control each component for precise operation.
  • the purpose of the present invention is to provide a plate feeder having high stability even with a simple structure.
  • the plate feeding device comprises the following aspects and any combination thereof.
  • One aspect of the present invention is a plate feeding device for simultaneously supplying a negative plate, a positive plate, and a separator interposed therebetween, the device comprising two grippers arranged to face each other, each gripper including: an upper jaw and a lower jaw; a first cam connected to one of the upper jaw and the lower jaw; a second cam connected to the other of the upper jaw and the lower jaw; and a camshaft to which the first cam and the second cam are fixed, the plate feeding device being configured such that the upper jaw and the lower jaw are in a closed state in which they come into contact with each other, and the upper jaw and the lower jaw are spaced apart from each other in an open state, depending on the rotation of the camshaft.
  • Another aspect of the present invention is a plate feeding device in which the gripper is configured such that the lower jaw is lowered and the upper jaw is raised from the closed state to reach the open state, and further includes a semi-open state in which only the upper jaw is raised from the closed state.
  • Another aspect of the present invention is a plate feeding device, wherein the plate feeding device is configured to move between a first position and a second position, and the gripper is configured to change from the open state to the closed state when the plate feeding device is in the first position, maintain the closed state while the plate feeding device moves to the second position, and change from the closed state to the open state after the plate feeding device reaches the second position.
  • Another aspect of the present invention is a plate feeding device, wherein the plate feeding device is configured to move between a first position and a second position, and the gripper is configured to change from the open state to the closed state when the plate feeding device is in the first position, maintain the closed state while the plate feeding device moves to the second position, and change from the closed state to the semi-open state after the plate feeding device reaches the second position.
  • Another aspect of the present invention is a plate feeding device configured to change from the semi-open state to the open state while the plate feeding device moves from the second position to the first position, or after reaching the first position.
  • Another aspect of the present invention is a plate feeding device, wherein the closed state and the open state are achieved by at least the profiles of the first cam and the second cam, and the relative angle fixed to the cam shaft.
  • Another aspect of the present invention is a plate feeding device in which the gripper further includes an upper follower connected to an upper jaw, and a lower follower connected to a lower jaw, the first cam is connected to the lower jaw through the lower follower, the second cam is connected to the upper jaw through the upper follower, and when the gripper is in the closed state, a minimum radius portion of the first cam is in contact with the lower follower, and a maximum radius portion of the second cam is in contact with the upper follower.
  • Another aspect of the present invention is a plate feeding device configured such that when the gripper is in the open state, the maximum radius portion of the first cam contacts the lower follower, and the minimum radius portion of the second cam contacts the upper follower.
  • Another aspect of the present invention is a plate feeding device in which the gripper further includes an upper follower connected to an upper jaw, and a lower follower connected to a lower jaw, and when the gripper is in the semi-open state, a minimum radius portion of the first cam is in contact with the lower follower, and a minimum radius portion of the second cam is in contact with the upper follower.
  • Another aspect of the present invention is a plate feeding device in which the gripper further includes an upper follower connected to an upper jaw, and a lower follower connected to a lower jaw, the first cam is connected to the lower jaw through the lower follower, the second cam is connected to the upper jaw through the upper follower, and when the gripper is in the closed state, a maximum radius portion of the second cam contacts the upper follower, while a minimum radius portion of the first cam is spaced apart from the lower follower by a predetermined gap.
  • Another aspect of the present invention is a plate feeding device further comprising a spring for applying a compressive force to close the upper jaw and the lower jaw, and configured to firmly connect the upper jaw and the lower jaw by the compressive force of the spring when the predetermined gap occurs.
  • the number of actuators required to operate a gripper of a plate feeding device can be minimized.
  • the upper and lower jaws of the gripper of the plate feeding device can be mechanically controlled in various ways, and there is no need to control the upper and lower jaws separately.
  • the operational response of the gripper of the plate feeding device is consistent and stable.
  • Figure 1 illustrates a plate feeding device according to one embodiment of the present invention.
  • Figure 2 is a view from below of the plate feeding device shown in Figure 1.
  • FIG. 3 illustrates a battery cell manufacturing device centered on a plate feeding device and adjacent units according to one embodiment of the present invention.
  • Figure 4 is a partially enlarged view of the battery cell manufacturing device shown in Figure 3.
  • FIGS. 5A to 5C are enlarged views of one gripper portion of a plate feeding device according to one embodiment of the present invention.
  • Figures 6a to 6c are examples of two cams applied to a plate feeding device according to one embodiment of the present invention.
  • FIG. 7 is another example of two cams applied to a plate feeding device according to another embodiment of the present invention, sequentially showing the closing and opening operations of the gripper according to the rotation angle of the cams.
  • Figure 8 shows a timing chart of the cams applied as shown in Figure 7.
  • FIG. 9 illustrates the operation of the cam and the corresponding operation of the gripper when the plate feeding device moves between the first position and the second position according to one embodiment of the present invention.
  • FIGs 1 and 2 illustrate a plate feeding unit (10) according to one embodiment of the present invention.
  • the feeding unit (10) is provided with two pairs of jaws (11, 12; 21, 22) capable of gripping both sides of a plate (1) to grip the plate (1) and feed it to a stack unit, a horizontal transport module (50) for transporting the same, and a support frame (37, 47) for connecting the jaws (11, 12; 21, 22) and the horizontal movement module (50).
  • the horizontal transport module (50) can move toward the stack table (131, see Figure 4) along both guides (38, 48) (in the direction of the arrows in Figure 1).
  • the plate feeding unit (10) can be fixed upward by the hanger frame (39, 49).
  • the devices immediately preceding the plate feeding unit (10) of the present invention in terms of the plate transport flow that is, the positive plate supply unit (110) for delivering positive plates, the negative plate supply unit (120) for delivering negative plates, and the plate stacking unit (130) which is the device immediately following the plate feeding unit (10), are illustrated.
  • the other units constituting the square battery cell manufacturing device are omitted for convenience of explanation.
  • the positive plate supply unit (110) is configured so that when a positive plate (not shown) is placed on the positive plate alignment table (111), the alignment table (111) moves horizontally toward the feeding unit (10).
  • the alignment table (111') indicates the alignment table in a state where it has moved to the feeding unit (10).
  • a separator (not shown) can be supplied along the same path as the movement path of the positive plate alignment table (111).
  • the separator can be configured to come down along the upper vertical space between the alignment table (111) before movement and the alignment table (111') after movement, and then be bent just above the electrode surface of the alignment table (111) and be supplied between the upper group (11; 21) and the lower group (12; 22) of the positive plate feeding unit (10).
  • the separator moves over the alignment table (111'). That is, the separator moves between the two grippers and between the upper group and the lower group.
  • the negative plate supply unit (120) is configured to come down from above with the negative plate (1), the negative plate (1) is placed on the separator.
  • the upper and lower sections (11, 12; 21, 22) of the feeding unit (10) are illustrated as being positioned at both ends of the plates in order to grip the positive plate placed on the positive plate alignment table (111'), the negative plate supplied from above to overlap with it, and the separator positioned therebetween.
  • the upper and lower sections are configured to grip the positive plate at the bottom of the separator, the negative plate at the top of the separator, and the separator all at once at this position.
  • the positive plate alignment table (111') can be slightly raised after reaching the 'alignment position' so that the positive plate can touch the lower part of the separator. Meanwhile, the negative plate supply unit (120) can lower the positive plate loading/unloading head (121) from the 'alignment position' and then block the suction force of the suction holes (122) so that the negative plate (1) can be placed on the upper part of the separator.
  • the alignment table (111') and the head (121) are configured to be shorter than each positive plate and have a size that does not interfere with the gripping action of the upper and lower jaws (11, 12; 21, 22).
  • the gripper of the feeding unit (10) i.e., the upper and lower jaws (11, 12; 21, 22)
  • grips the plates at the 'alignment position' the aforementioned shooting is performed, and then the plates are conveyed to the stack table (131) in a gripped state.
  • the separator that had been stopped is pulled and supplied in the direction of travel.
  • the pusher (132) descends to fix the plates and the separator.
  • the plate feeding unit (10) returns to the 'alignment position' again. In this way, the plate feeding unit (10) is configured to reciprocate between the 'alignment position' and the 'stack position'.
  • Figures 5a to 5c illustrate the left gripper among a pair of grippers provided in the plate feeding device (10).
  • the upper jaw (11) is fixed to the support arm (15)
  • the lower jaw (12) is fixed to the support arm (16).
  • a bracket (14) may be fixed between the lower jaw (12) and the support arm (16).
  • the upper and lower jaws (11, 12) are configured to rise or fall by an actuator (36) such as a motor.
  • a backlight (20) is arranged above one edge of the plate (1). This is used as lighting when taking pictures with a camera to confirm alignment.
  • the support arms (15, 16) are functionally connected to the support frame (37) via cams (31, 32). Two cams (31, 32) are fixed to one camshaft (35).
  • the support arms (15, 16) can be compressed by springs (17a, 17b, 18a, 18b). One end of the spring can be connected to the support arm, and the other end can be connected to the support piece (19a, 19b).
  • Fig. 5c is a diagram showing the mounting state of the cams (31, 32) by omitting some of the configuration from Figs. 5a and 5b. It can be confirmed that the cam (32) is connected to the follower (34).
  • FIGS 6a to 6c illustrate the shapes of cams (31, 32) according to one embodiment of the present invention.
  • the cam (31) is connected to a follower (33), and the cam (32) is connected to a follower (34), and the follower (33) and the follower (34) are coupled to a support arm (15) and a support arm (16), respectively.
  • the cams (31, 32) should not rotate with respect to the camshaft (35), and for this purpose, a keyway (40) may be provided.
  • FIG. 7 illustrates cam operation and the operation of upper and lower jaws according to the cam operation according to one embodiment of the present invention.
  • the shapes of the cams (31', 32', 41', 42') are different from the previous embodiment.
  • the drawing symbols are given based on the cams installed on the left gripper of the plate feeding unit (10), and the corresponding cams of the right gripper are indicated in parentheses.
  • the cams (31'; 41') are connected to the lower jaw (12; 22) through the follower (33; 43), and the cams (32'; 42') are connected to the upper jaw (11; 21) through the follower (34; 44).
  • being connected means that the corresponding jaws are connected to operate according to the rotation of the cam.
  • Figures 7 (a), (b), and (c) show the states where the cam (31') connected to the lower jaw (12) is rotated 0°, 120°, and 240°, respectively.
  • the cams each rotate in only one direction. Since the other cam (32') is fixed to the same cam shaft as the cam (31'), it rotates in the same amount as the cam (31') rotates. Therefore, the relative angle between the two cams (31', 32') is maintained constant.
  • the arrow and the dashed line indicated by 'S' indicate the line along which the membrane is supplied.
  • Figure 7 (c) shows a state in which both the cam (31') and the cam (32') are in contact with the follower (33) and the follower (34) at the minimum radius portion.
  • the upper jaw (11) rises by a certain height (h), while the lower jaw (12) does not descend and is maintained at the same position as the separator (S). This will be referred to as a 'semi-open state'.
  • Fig. 8 shows cam diagrams of the cams illustrated in Fig. 7, where (a) is a diagram of a cam (32') connected to the upper group, and (b) is a diagram of a cam (31') connected to the lower group.
  • 'R' means the radius (in mm) of the cam circumference determined by the profile of the cam.
  • 'R15' means that the radius of the cam is 15 mm.
  • Figure 9 shows the rotation angle of the cam and the open and closed states of the gripper according to the rotation angle of the electrode plate feeding device (10) according to the present invention at the first position ('alignment position'), the second position ('stack position'), and during feeding movement.
  • the gripper of the feeding device (10) changes from the open state to the closed state, gripping the separator and the two upper and lower plates.
  • the feeding device (10) moves to the second position while maintaining that state.
  • the lower jaw is at the same height as the separator, it does not collide with one side of the table or the already laminated plates when entering the stacking table.
  • the feeding device (10) reaches the second position, only the upper jaw is raised and opened to release the plates. If the lower jaw is lowered, it may collide with the laminated plates. After the plates are released, the lower jaw is lowered while returning to the first position or after returning to create a completely open state.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un appareil d'alimentation d'une plaque d'électrode, l'appareil comprenant un dispositif de préhension ayant une structure simple et une réactivité stable. L'appareil destiné à alimenter simultanément une plaque d'électrode négative, une plaque d'électrode positive et un séparateur placé entre celles-ci comprend deux pinces disposées l'une en face de l'autre. Chacune des pinces comprend : une mâchoire supérieure et une mâchoire inférieure ; une première came reliée à l'une parmi la mâchoire supérieure et la mâchoire inférieure ; une seconde came reliée à l'autre parmi la mâchoire supérieure et la mâchoire inférieure ; et un arbre à cames auquel la première came et la seconde came sont fixées. Selon la rotation de l'arbre à cames, le dispositif de préhension adopte un état fermé, dans lequel la mâchoire supérieure et la mâchoire inférieure sont en contact l'une avec l'autre, ou un état ouvert, dans lequel la mâchoire supérieure et la mâchoire inférieure sont espacées l'une de l'autre.
PCT/KR2024/001274 2023-01-31 2024-01-26 Appareil d'alimentation de plaque d'électrode Ceased WO2024162701A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020230012943A KR102629064B1 (ko) 2023-01-31 2023-01-31 극판 피딩 장치
KR10-2023-0012943 2023-01-31

Publications (1)

Publication Number Publication Date
WO2024162701A1 true WO2024162701A1 (fr) 2024-08-08

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PCT/KR2024/001274 Ceased WO2024162701A1 (fr) 2023-01-31 2024-01-26 Appareil d'alimentation de plaque d'électrode

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KR (2) KR102629064B1 (fr)
WO (1) WO2024162701A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102629064B1 (ko) * 2023-01-31 2024-01-25 주식회사 이노메트리 극판 피딩 장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140062761A (ko) * 2012-11-15 2014-05-26 에스케이이노베이션 주식회사 이차 전지용 고속 스태킹 장치 및 방법
KR20200055413A (ko) * 2018-11-13 2020-05-21 주식회사 디에이테크놀로지 이차전지의 셀 스택 제조를 위한 전극 픽앤플레이스 장치
KR20220099885A (ko) * 2021-01-07 2022-07-14 조기봉 이차전지의 고속 셀 스택 제조장치
KR20220154012A (ko) * 2021-05-12 2022-11-21 도요타 지도샤（주） 전극 적층 장치
KR20220169700A (ko) * 2021-06-21 2022-12-28 주식회사 엠플러스 이차전지 극판과 분리막 동시 적층장치
KR102629064B1 (ko) * 2023-01-31 2024-01-25 주식회사 이노메트리 극판 피딩 장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140062761A (ko) * 2012-11-15 2014-05-26 에스케이이노베이션 주식회사 이차 전지용 고속 스태킹 장치 및 방법
KR20200055413A (ko) * 2018-11-13 2020-05-21 주식회사 디에이테크놀로지 이차전지의 셀 스택 제조를 위한 전극 픽앤플레이스 장치
KR20220099885A (ko) * 2021-01-07 2022-07-14 조기봉 이차전지의 고속 셀 스택 제조장치
KR20220154012A (ko) * 2021-05-12 2022-11-21 도요타 지도샤（주） 전극 적층 장치
KR20220169700A (ko) * 2021-06-21 2022-12-28 주식회사 엠플러스 이차전지 극판과 분리막 동시 적층장치
KR102629064B1 (ko) * 2023-01-31 2024-01-25 주식회사 이노메트리 극판 피딩 장치

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KR102629064B1 (ko) 2024-01-25

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