WO2023096324A1 - 전지 셀의 포메이션 장치 - Google Patents
전지 셀의 포메이션 장치 Download PDFInfo
- Publication number
- WO2023096324A1 WO2023096324A1 PCT/KR2022/018561 KR2022018561W WO2023096324A1 WO 2023096324 A1 WO2023096324 A1 WO 2023096324A1 KR 2022018561 W KR2022018561 W KR 2022018561W WO 2023096324 A1 WO2023096324 A1 WO 2023096324A1
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- WIPO (PCT)
- Prior art keywords
- unit
- battery cell
- sealing
- piercing
- hole
- Prior art date
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 98
- 238000007789 sealing Methods 0.000 claims abstract description 116
- 238000000034 method Methods 0.000 claims abstract description 67
- 230000008569 process Effects 0.000 claims abstract description 54
- 239000012160 loading buffer Substances 0.000 claims abstract description 33
- 239000000872 buffer Substances 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims description 42
- 238000007599 discharging Methods 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 4
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- 238000000926 separation method Methods 0.000 claims 1
- 238000001994 activation Methods 0.000 description 5
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- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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
-
- 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
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- 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
- H01M10/049—Processes for forming or storing electrodes in the battery container
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- 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 battery cell formation device capable of discharging gas generated during the battery cell formation process to the outside of the battery cell in real time.
- secondary batteries can be classified into cylindrical, prismatic, pouch-shaped, etc. according to their shapes.
- the pouch-type secondary battery uses a pouch exterior material composed of a multi-layer film of a metal layer (foil) and a synthetic resin layer coated on the upper and lower surfaces of the metal layer, so the weight of the battery is lower than that of a cylindrical or prismatic battery using a metal can. It can significantly reduce the weight of the battery, and it is possible to change into various forms, so it is attracting a lot of attention.
- electrode assemblies are stored in a stacked form.
- An electrode tab and an electrode lead are connected to the electrode assembly, and the electrode lead protrudes from the pouch exterior material.
- These electrode leads are electrically connected to an external device through contact and receive power from the external device.
- a pouch-type secondary battery is manufactured through a process of assembling a cell and a process of activating the battery.
- the secondary battery cell is loaded in a charging/discharging device and charging and discharging are performed under conditions necessary for activation.
- a process of performing predetermined charging and discharging using a charging and discharging device to activate a battery is referred to as a formation process or a formation process.
- both sides of the battery cell may be pressurized using a pressurizing means such as a jig including a plate-shaped pressurizing plate during activation charging, which is also referred to as a jig formation.
- a pressurizing means such as a jig including a plate-shaped pressurizing plate during activation charging, which is also referred to as a jig formation.
- a jig formation prevents expansion of the negative electrode during the activation process, promotes the chemical reaction of the battery, induces gas generation, and moves the internal gas to the gas pocket portion.
- An object of the present invention is to provide a formation device of a battery cell capable of discharging internal gas to the outside of the battery cell during the formation process so that the gas pocket portion does not excessively expand due to internal gas generation during the formation process.
- the formation body portion for forming battery cells; a loading buffer unit provided to wait for battery cells before being put into the formation body unit; an unloading buffer unit provided to wait for the battery cells transported from the formation body unit when the formation process is finished; a piercing unit located at one side of the loading buffer unit and forming a through hole in a gas pocket of a battery cell accommodated in the loading buffer unit; and a sealing part positioned at one side of the unloading buffer part and sealing a through-hole formed in a battery cell accommodated in the unloading buffer part.
- the piercing unit a piercing unit for forming a through-hole in a state in which both sides of the gas pocket portion are pressed;
- a piercing unit moving member that is coupled to one side of the piercing unit and allows the piercing unit to move forward in a battery cell direction or backward in the opposite direction;
- a driving unit for driving the piercing unit moving member may be included.
- the piercing unit a pair of gas pocket portion pressing member for pressing the gas pocket portion; a piercing member coupled to the inner side of the gas pocket portion pressing member and forming a through-hole by penetrating a portion of the pressure sheet surface when the gas pocket portion pressing member presses the gas pocket portion; and a piercing unit body coupled to one side of the pair of gas pocket unit press members, and the pair of gas pocket unit press members may be coupled to be slidably movable on the piercing unit body for press release of the gas pocket unit.
- the piercing unit moving member, and one side includes an extension rod coupled to the piercing unit, the extension rod is extended in the direction of the loading buffer portion by the drive unit, or in the opposite direction It can be configured so that the length is shortened.
- the sealing unit a sealing unit for sealing the through-hole in a state where both sides of the gas pocket portion are pressed; It may include a sealing unit moving member that is coupled to one side of the sealing unit and allows the sealing unit to move forward in a battery cell direction or backward in an opposite direction, and a driving unit that drives the sealing unit moving member.
- the sealing unit may include: a pair of through-hole pressing members for pressing the through-hole and its surroundings; a pair of sealing members coupled to each inner side of the pair of through-hole pressing members to seal the through-hole or its surroundings when the through-hole pressing member presses the through-hole and its surroundings; and a sealing unit body coupled to one side of the pair of through-hole press members, wherein the pair of through-hole press members may be coupled to be slidably movable on the seal unit body to press the through-hole.
- the sealing member may include a pair of sealing tools, and the sealing tools may heat-compress a periphery of the through-hole to fuse the pouch.
- the sealing unit moving member includes an extension rod, one side of which is coupled to the sealing unit, and the extension rod has a length extended toward the unloading buffer unit by the driving unit, or The length can be shortened in the opposite direction.
- the loading buffer unit and the unloading buffer unit respectively, a transfer unit for transferring battery cells; and a plurality of alignment guide members installed at regular intervals along a transport direction of the battery cells so that the plurality of battery cells are arranged in an upright state, and one battery cell is accommodated in a space between the alignment guide members.
- the formation body portion a frame for accommodating a plurality of battery cells; a charging and discharging unit for charging and discharging the battery cell; and a pressure jig that pressurizes the battery cell.
- the formation body unit further includes an air supply unit, and the air supply unit is located above the frame and can supply air to the inside of the frame through a pipe communicating with the inside of the frame. .
- the formation body unit further includes a gas exhaust unit, and the gas exhaust unit is installed on one side of the lower part of the frame, and discharges gas generated during the formation process through a pipe communicating with the inside of the frame to the frame. can be discharged to the outside.
- the gas exhaust unit a blowing fan for discharging gas to the outside; and a filter adsorbing harmful substances contained in the gas.
- the formation device of the present invention can form a through-hole in the gas pocket portion of the battery cell immediately before being put into the formation main body, and the formation process is possible in a state where the gas pocket portion of the battery cell is opened. Therefore, it is possible to solve the problem of excessive expansion of the gas pocket part.
- the formation main body includes an air supply unit and a gas exhaust unit, internal gas generated during the formation process may be naturally discharged.
- the through hole can be sealed and taken out of the formation device.
- FIG. 1 is a top view of a battery cell formation device according to an embodiment of the present invention.
- FIG. 2 is a perspective view illustrating a loading buffer unit and a piercing unit according to an embodiment of the present invention.
- FIG. 3 is a perspective view illustrating a loading buffer unit or an unloading buffer unit.
- Figure 4 is a schematic diagram of the top view of Figure 1;
- FIG. 5 is a perspective view of a piercing unit according to an embodiment of the present invention.
- FIG. 6 is a view showing a piercing operation of the piercing part of FIG. 5;
- FIG. 7 is an exploded perspective view of the piercing unit of FIG. 5;
- FIG. 8 is a perspective view of a sealing unit according to an embodiment of the present invention.
- FIG. 9 is an exploded perspective view of a sealing unit according to an embodiment of the present invention.
- FIG 10 illustrates through-hole sealing geometries, in accordance with various embodiments.
- FIG 11 shows a pressure jig according to an embodiment of the present invention.
- FIG. 12 is a side view of a formation body part according to an embodiment of the present invention.
- FIG. 13 is a top view of a formation device according to another embodiment of the present invention.
- the terms “include” or “have” are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.
- a part such as a layer, film, region, plate, etc. is said to be “on” another part, this includes not only the case where it is “directly on” the other part, but also the case where another part is present in the middle.
- a part such as a layer, film, region, plate, etc.
- being disposed “on” may include the case of being disposed not only on the top but also on the bottom.
- sealing the through-hole is a concept that includes both sealing the through-hole or sealing around the through-hole.
- FIG. 1 is a top view of a formation device for a battery cell according to an embodiment of the present invention
- FIG. 2 is a perspective view of a loading buffer part and a piercing part constituting the formation device of the present invention
- FIG. 3 is a formation device of the present invention. It is a perspective view of a loading buffer unit or an unloading buffer unit
- FIG. 4 is a schematic diagram of a top view of FIG. 1 .
- the battery cell formation apparatus 100 includes a formation body portion 110 for forming battery cells; a loading buffer unit 120 provided to wait for the battery cells 10 before being put into the formation body unit; an unloading buffer unit 130 provided to wait for the battery cells carried out from the formation body unit when the formation process is finished; a piercing part 140 forming a through-hole in the gas pocket part of the battery cell accommodated in the loading buffer part; and a sealing part (not shown) sealing a through-hole formed in the battery cell accommodated in the unloading buffer part.
- the battery cell formation apparatus of the present invention includes a piercing part and a sealing part, wherein the piercing part forms a through hole in the gas pocket of the battery cell before the battery cell is put into the formation body, and the sealing part forms a through hole in the formation body.
- the through hole of the battery cell immediately after being taken out of the main body is sealed. Therefore, since the formation device of the present invention performs the formation process on the battery cells having through-holes formed in the gas pockets, gas generated during the formation process is discharged through the through-holes to prevent excessive expansion of the gas pockets. Therefore, the occurrence of defects in the transport process is reduced, and there is no need to change the design of the pouch.
- the formation main body 110 charges and discharges battery cells under set charging and discharging conditions and activates them.
- the formation main body 110 may be configured to charge and discharge the battery cells in a pressurized state.
- FIG. 11 shows a pressure jig according to an embodiment of the present invention
- FIG. 12 is a side view of a formation main body according to an embodiment of the present invention.
- the formation body unit 110 according to an embodiment of the present invention includes a charging and discharging unit (not shown) for charging and discharging battery cells; and a pressure jig 112 for pressurizing the battery cell.
- FIG. 11 shows a pressure jig 112 according to an embodiment of the present invention, and the pressure jig 112 is installed in a number side by side, coupled to each other to enable simple adjustment, and between each a pressure plate 112a configured to interpose the battery cell 10 in the formed gap;
- a support member (112b) installed for support;
- a movable member 112c installed to face the support member 112b;
- the pressure plate 112a is for pressurizing the battery cells 10, and is placed side by side between the support member 112b and the movable member 112c so as to simultaneously press the plurality of battery cells 10. It is installed vertically, and is coupled so that the distance between each other can be adjusted by the forward and backward movement of the movable member 112c, and the battery cell 10 is inserted into the gap formed between each.
- the pressure plate 112a is moved in the direction of spacing adjustment (z-axis direction) by a guide member 112d to be described later in order to apply pressure to the battery cell 10 during the charging and discharging process of the battery cell 10
- the pressure plate 1300 may be provided with a sliding coupling part (not shown) coupled to allow the guide member 1600 to slide through.
- the support member 112b is installed for support.
- it may be installed perpendicular to the frame 112f installed on the ground, and as another example, it may be installed to be elastically supported by an elastic support member.
- the movable member 112c is installed to face the support member 112b and moves back and forth by the pressure drive unit 112e to press and release the pressure plate 112a.
- the guide member 112d guides the plurality of pressure plates 112a to move in the direction of adjusting the spacing.
- one end portion of the support member is placed in the arrangement direction (z-axis direction) of the pressure plates 112a.
- the other end portion may be made of an axis member fixed to the movable member (112c), and a plurality of them may be provided side by side.
- the pressure driver 112e moves the movable member 112c back and forth to press and release the battery cell 10 located between the pressure plates 112a from both sides.
- a cylinder (not shown) It can be configured in a variety of ways, including being configured to use reciprocating motion or to convert the rotational force of the motor into linear motion.
- the loading buffer unit 120 is a space prepared for the battery cells 10 before being put into the formation body unit 110 to wait, and the battery cells 10 are loaded by the loader/unloader 160 It is placed in the buffer unit 120.
- the loading buffer unit 120 includes a transfer unit 122 for transferring the battery cell 10; And a plurality of alignment guide members 121 installed at regular intervals along the transport direction of the battery cells so that the plurality of battery cells 10 are arranged in an upright state, and within the spaced apart space of the alignment guide members 121, It is a structure in which one battery cell 1 is accommodated.
- the state in which the battery cell 10 is erected may be a state in which the gas pocket part is positioned upward and the electrode assembly accommodating part is positioned downward.
- the loading buffer unit 120 can accommodate a plurality of battery cells 10, and as shown in FIGS. 3 and 4, the plurality of battery cells 10 arranged in a row can be transferred in the direction of the arrow. structure that can be
- the loading buffer unit 120 may include a plurality of alignment guide members 121 and may have a structure in which a battery cell is inserted between one guide member and an adjacent guide member.
- One guide member 121 may include a pair of guide bars 121a and 121b, one of the guide bars 121a on the right side of the battery cell 10, and the other guide bar 121b on the battery cell 10. They may be spaced apart from each other to support the left side of the cell.
- the guide bars 121a and 121b have a predetermined width and extend in the height direction of the battery cell. The heights of the guide bars 121a and 121b may be slightly lower than or slightly higher than the height of the battery cell 10 .
- the guide member 121 is located in an area that does not interfere with the piercing unit when a piercing unit, which will be described later, approaches the gas pocket portion of the battery cell 10 to form a through hole.
- the transfer unit 122 may be a conveyor belt that continuously transfers a plurality of battery cells 10, but is not limited thereto.
- the transfer unit transfers the battery cell 10 to an appropriate location around the piercing unit 130 so that the piercing unit 130 can easily perform the piercing process, and is pierced by the piercing unit 140. While the process is being performed, the transfer operation is temporarily suspended, and when the piercing process is finished, the transfer operation is resumed for the piercing process of the battery cell at the rear of the battery cell in which the piercing process is terminated.
- Figure 5 is a perspective view of a piercing unit according to an embodiment of the present invention
- Figure 6 is a view showing a piercing operation of the piercing unit of Figure 5
- Figure 7 is an exploded perspective view of the piercing unit according to an embodiment of the present invention.
- the piercing unit 140 in a state of pressing both sides of the gas pocket portion, to form a through-hole, piercing unit 141;
- a piercing unit moving member 142 coupled to one side of the piercing unit 141 and allowing the piercing unit to move forward in a battery cell direction or backward in the opposite direction;
- a driving unit 143 for driving the piercing unit moving member 142 is included.
- the piercing unit 141 a pair of gas pocket portion pressing member (141a, 141a') for pressing the gas pocket portion; It is coupled to the inside of the gas pocket portion pressing members 141a and 141a', so that when the gas pocket portion pressing members 141a and 141a' press the gas pocket portion, a through hole is formed through a portion of the pressure sheet surface.
- a piercing unit body 141c coupled to one side of the pair of gas pocket portion pressure-retaining members 141a and 141a', wherein the pair of gas pocket portion-pressing members 141a and 141a' include the gas pocket portion It is a structure that is coupled to be able to slide on the piercing unit body 141c for blotting paper.
- the gas pocket portion pressing members 141a and 141a' are members for pressing and fixing the gas pocket portion of the battery cell 10 accommodated in the loading buffer portion 120 .
- the gas pocket portion pressure-retaining members 141a and 141a' form the battery cell 10 so that the battery cell can be maintained in a fixed state.
- the gas pocket part of the press is pressed.
- the gas pocket portion pressing members 141a and 141a' have a pressure surface 141-1 having a predetermined area on the inside facing the battery cell 10 so that both surfaces of the gas pocket portion in the thickness direction can be pressed. is provided.
- the piercing members 141b and 141b' are coupled to a partial region of the pressure surface 141-1. There is no limitation on the shape or material of the piercing members 141b and 141b' as long as they can form a through hole in the pouch.
- the piercing members 141b and 141b' are paired with an acicular member 141b with a sharp distal end, and a depression recessed into the inside by the length of the pointed protrusion of the acicular member. It may include one acicular member sheath 141b', wherein the acicular member 141b is attached to one of the paired gas pocket portion pressure paper members 141a, and the acicular member sheath 141b' is attached to the other gas pocket. They are respectively coupled to the sub pressure sheet member 141a'.
- the piercing member is not limited to this embodiment, and may be, for example, a punching mold instead of a needle-like member, and various methods disclosed at the time of filing of the present invention may be employed.
- an elastic pressure pad 141e may be coupled to an extension of one side of the pressing member.
- the one-side extension part means a part of one side extending toward the battery cell in the gas pocket part press member.
- the piercing unit main body 141c has one side coupled to the gas pocket portion pressing members 141a and 141a′, and the other side coupled to the piercing unit moving member 142.
- the piercing unit body 141c includes a sliding portion 141d on a surface coupled to the gas pocket portion pressing members 141a and 141a', so that the pair of gas pocket portion pressing members 141a and 141a' are included. (141a, 141a') is configured to be able to slide so as to move away from each other or approach each other.
- the gas pocket portion blotting paper members 141a and 141a' slide in a direction closer to each other when pressing the gas pocket portion, and when the piercing process is finished, a pair of gas pocket portion blotting paper to release the state of the blotting paper
- the members 141a and 141a' slide in a direction away from each other.
- the pair of gas pocket portion blotting paper members may be pressed with the gas pocket portion interposed therebetween. In this case, when sliding for battery cell blotting paper, the distance between them becomes the thickness of the gas pocket portion at a point The sliding movement can be stopped.
- the piercing unit moving member 142 is such that the piercing unit 141 moves forward in the battery cell direction to perform the piercing process, or moves backward to the original position after the piercing unit 141 ends the piercing process. Consists of.
- the piercing unit moving member 142 includes an extension rod 142a having one side thereof coupled to the piercing unit 141 therein, and the extension rod ( 142a) has a structure in which the driving unit 143 extends in the direction of the battery cell 10 mounted on the loading buffer unit 120 or shortens in the opposite direction.
- the piercing unit moving member 142 has an inner space accommodating the extension rod 142a therein, and the extension rod 142a is inserted into this inner space.
- the length of the extension bar 142a extends from the inside of the piercing unit moving member 142 in order to approach the piercing unit 141 in the direction of the battery cell 10, and accordingly, in the lower view of FIG. 6 As shown, the piercing unit 141 moves in the direction of the battery cell.
- the extension rod 142a is inserted into the piercing unit moving member 142 while its length is shortened, and thus, the piercing unit 141 returns to its original position. will return to
- FIG. 6 shows the piercing unit 141 approaching the battery cell 10 and performing a piercing process
- the upper view of FIG. 6 shows the piercing unit 141 approaching the battery cell. It shows the previous appearance.
- the piercing unit moves forward or backward in the direction of the battery cell by the operation of the extension bar 142a of the piercing unit moving member 142 .
- the extension rod 142a is driven by the drive unit 143 .
- the extension rod 142a stops extending in the direction of the battery cell. Thereafter, the pair of gas pocket portion pressing members 141a and 141a' slide on the piercing unit body 141c so as to be close to each other by a distance sufficient to press the gas pocket portion, and these gas pocket portion pressing members When 141a and 141a' press the gas pocket portion, the acicular member 141b penetrates a portion of the blotting paper surface to form a through-hole in the gas pocket portion.
- the unloading buffer unit 130 is a space provided for the battery cells 10 carried out from the formation body 110 to wait after the formation process is completed, and seals the through hole in the unloading buffer unit 130.
- the loader/unloader 160 carries out the formation device of the present invention.
- the unloading buffer unit 130 includes a transfer unit for transferring battery cells; and a plurality of alignment guide members installed at regular intervals along the transfer direction of the battery cells so that the plurality of battery cells are arranged in an erected state, and one battery cell is accommodated in a space between the alignment guide members. .
- the unloading buffer unit 130 can transport the plurality of battery cells 10 while receiving them, and as shown in FIG. 3, the plurality of battery cells 10 arranged in a row in the direction of the arrow. It is a transportable structure.
- the sealing unit 150 is located on one side of the unloading buffer unit 130, and the loading buffer unit includes an alignment guide member and a transfer unit. Since it is the same as the unit, the detailed description of the alignment guide member and the transfer unit of the unloading buffer unit will be replaced with a description of the alignment guide member and the transfer unit of the loading buffer unit.
- FIG. 8 is a perspective view of a sealing unit according to an embodiment of the present invention
- FIG. 9 is an exploded perspective view of a sealing unit according to an embodiment of the present invention.
- the sealing unit 150 according to an embodiment of the present invention, in a state in which both sides of the gas pocket portion are pressed, seals the through-hole, the sealing unit 151; a sealing unit moving member 152 coupled to one side of the sealing unit 151 to allow the sealing unit 151 to move forward in the battery cell direction or backward in the opposite direction;
- a driving unit 153 for driving the sealing unit moving member 152 is included.
- the sealing unit 151 includes a pair of through-hole pressing members 151a and 151a' for pressing the through-hole and its surroundings; It is coupled to each inner side of the pair of through-hole blocking members 151a and 151a', and when the through-hole blocking members 151a and 151a' press the through-hole and its surroundings, the through-hole or its surroundings are sealed.
- the through-hole pressing members 151a and 151a' are members for pressing and fixing the through-hole of the battery cell accommodated in the unloading buffer unit and its surroundings.
- the sealing members 151b and 151b' seal the through-hole formed in the gas pocket portion of the battery cell
- the through-hole press member 151a and 151a' seal the battery cell so that the battery cell can remain fixed. press down
- the through-hole pressing members 151a and 151a' include a pressure surface 151-1 having a predetermined area on the inner side facing the battery cell 10 so that both surfaces of the battery cell 10 in the thickness direction can be pressed. are equipped Sealing members 151b and 151b' are coupled to a portion of the pressure surface 151-1.
- the shape of the sealing member 151b is not particularly limited as long as it can seal the through-hole formed in the gas pocket portion.
- the sealing members 151b and 151b' include a pair of sealing tools 151b and 151b' capable of sealing around the through-hole, and the sealing tools include The perimeter of the through-hole is thermally compressed to heat-seal the pouch.
- the sealing tool may be a hard metal material, and the metal material has excellent thermal conductivity and is advantageous for sealing.
- the sealing tool 151b presses both sides of the pouch. At this time, the sealing tool is heated by the heating member to press the pouch at a high temperature, and the innermost layer of the pouch is melted and heat-sealed.
- 10 illustrates through-hole sealing shapes according to various types of sealing tools of the present invention.
- 10(b) shows a state in which the through-hole periphery is sealed by the “U”-shaped sealing tool 151b of the form shown in FIG. 9 .
- the shape of the sealing tool may be “ ⁇ ” shape, “L” shape, “c” shape, or the like.
- the sealing tool is not limited to this embodiment, and various methods disclosed at the time of filing of the present invention may be employed.
- 10 (a) shows a sealing shape in which the periphery of the through-hole is sealed by the “ ⁇ ” type sealing tool, and FIG.
- 10 (c) shows a sealing shape in which the periphery of the through-hole is sealed by the “L” type sealing tool
- 10(f) shows a sealing shape in which the periphery of the through-hole is sealed by the “c”-shaped sealing tool.
- the sealing member may be configured to attach a tape sealing an area including the through hole.
- the through-hole is sealed in the form of FIG. 10(d).
- the sealing member may be configured to bond the through hole. Bonding is to apply a curable adhesive component to a partial area including the through-hole, and the through-hole is sealed in a form as shown in FIG. 10(e).
- an elastic pressure pad 151e may be coupled to one extension of the press member 151a or 151a'.
- the sealing unit main body 151c has one side coupled to the through-hole press members 151a and 151a', and the other side coupled to the sealing unit moving member 152.
- the sealing unit main body 151c includes a sliding portion 151d on a surface coupled to the through-hole pressing members 151a and 151a', so that the pair of through-hole pressing members 151a , 151a') is configured to be able to slide so as to move away from each other or approach each other.
- the through-hole blotting paper members 151a and 151a' slide in a direction closer to each other, and when the sealing process is finished, the pair of through-holes 151a and 151a' slide to release the state of the blotting paper.
- the pressure sheet members 151a and 151a' slide in a direction away from each other.
- a pair of through-hole blotting paper members can be pressed with a gas pocket portion interposed therebetween, and in this case, when sliding for battery cell blotting paper, the gap between them slides at a point where the thickness of the gas pocket portion becomes the length of the gas pocket portion. can stop moving.
- the sealing unit moving member 152 moves the sealing unit 151 forward in the battery cell direction to perform the sealing process, or moves the sealing unit 141 backward to the original position after the sealing process ends. Consists of.
- one side of the sealing unit moving member 152 is coupled to the sealing unit 151, and the sealing unit 151 can move in the direction where the battery cell 10 is located.
- the extension rod 152a may be inserted into the inner space to accommodate the extension rod.
- the extension bar 152a extends from the inside of the sealing unit moving member 152 to bring the sealing unit 151 closer to the battery cell 10 mounted on the unloading buffer 130, thereby sealing it.
- the unit 152 is moved in the direction of the battery cell.
- the extension rod 152a is inserted into the supporting member 152 again. Accordingly, the sealing unit returns to its original position.
- FIG. 13 is a top view of a formation device according to another embodiment of the present invention.
- the formation device 200 according to another embodiment of the present invention, the formation body portion 210 for forming battery cells; a loading buffer unit 220 provided to wait for the battery cells 10 before being put into the formation body unit 210; an unloading buffer unit 230 provided to wait for the battery cells 10 carried out from the formation body when the formation process is finished; first and second piercing parts 240 and 270 located on both sides of the loading buffer part 220 and forming through-holes in gas pockets of the battery cells 10 accommodated in the loading buffer part 220; and first and second sealing parts 250 and 280 located on both sides of the unloading buffer part 230 and sealing through-holes formed in the battery cells 10 accommodated in the unloading buffer part 230 .
- the embodiment shown in FIG. 13 is different from the above-described embodiment (the embodiment shown in FIG. 4) in that each includes two piercing parts and two sealing parts.
- the process of charging the battery may be performed twice or more, and accordingly, there may be cases in which the process of forming the through hole and sealing the through hole needs to be performed twice or more.
- the formation device of the embodiment shown in FIG. 13 includes two piercing parts and two sealing parts.
- the two piercing parts 240 and 270 are respectively located on one side and the other side of the battery cell with the battery cell 10 therebetween, and the two sealing parts 250 and 280 also have the battery cell 10 therebetween. It is located on one side and the other side of the battery cell, respectively.
- the second piercing part 270 forms a through-hole for the second time, since the through-hole cannot be formed again around the through-hole formed by the first piercing part 240, the first piercing part 240 In order to form the through hole at a position opposite to the position of the through hole formed by, the second piercing part 270 is located on the opposite side of the first piercing part 240 with respect to the battery cell 10 .
- the first sealing portion and the second sealing portion are positioned to face each other with respect to the battery cell.
- the formation body part 110 according to an embodiment of the present invention further includes an air supply part 113, and the air supply part 113 is located above the frame 111, Air is supplied to the inside of the frame through a pipe communicating with the inside of the frame 111 . Blowing air discharged from the air supply unit functions to maintain a constant temperature inside the frame by mixing with air inside the frame whose temperature has risen due to the formation process. In addition, it also serves to dilute the internal gas generated during the formation process.
- the formation body part 110 further includes a gas exhaust part 114, and the gas exhaust part 114 is installed on one side of the lower part of the frame 111 and uses a pipe communicating with the inside of the frame. Through this, the gas generated during the formation process is discharged to the outside of the frame.
- the gas exhaust unit a blowing fan for discharging gas to the outside; and a filter adsorbing harmful substances contained in the gas.
- the formation process can be performed in a state where the gas pocket portion of the battery cell is opened, and internal gas generated during the formation process can be naturally exhausted.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (13)
- 전지 셀을 포메이션하는 포메이션 본체부;상기 포메이션 본체부에 투입되기 이전의 전지 셀이 대기하도록 마련된 로딩 버퍼부;포메이션 공정이 종료되어, 상기 포메이션 본체부로부터 반출된 전지 셀이 대기하도록 마련된 언로딩 버퍼부;상기 로딩 버퍼부의 일측에 위치하고, 로딩 버퍼부에 수용된 전지 셀의 가스 포켓부에 관통구를 형성하는 피어싱부; 및상기 언로딩 버퍼부의 일측에 위치하고, 상기 언로딩 버퍼부에 수용된 전지 셀에 형성된 관통구를 밀봉하는 밀봉부를 포함하는 전지 셀의 포메이션 장치.
- 제 1 항에 있어서, 상기 피어싱부는,가스 포켓부의 양면을 압지한 상태에서, 관통구를 형성하는, 피어싱 유닛;상기 피어싱 유닛의 일측과 결합되어, 피어싱 유닛이 전지 셀 방향으로 전진하거나 또는 그 반대 방향으로 후진하도록 하는 피어싱 유닛 이동 부재;상기 피어싱 유닛 이동 부재를 구동하는 구동부를 포함하는 전지 셀의 포메이션 장치.
- 제 2 항에 있어서, 상기 피어싱 유닛은,가스 포켓부를 압지하는 한 쌍의 가스 포켓부 압지 부재;상기 가스 포켓부 압지 부재의 내측에 결합되어, 상기 가스 포켓부 압지 부재가 가스 포켓부를 압지하였을 때, 압지 면의 일부를 관통하여 관통구를 형성하는 피어싱 부재;상기 한 쌍의 가스 포켓부 압지 부재의 일측과 결합된 피어싱 유닛 본체;를 포함하고,상기 한 쌍의 가스 포켓부 압지 부재는, 가스 포켓부의 압지를 위해 상기 피어싱 유닛 본체 상에서 슬라이딩 이동 가능하도록 결합된 전지 셀의 포메이션 장치.
- 제 2 항에 있어서, 상기 피어싱 유닛 이동 부재는, 일측이 상기 피어싱 유닛과 결합된 연장봉을 포함하고 있고,상기 연장봉은 상기 구동부에 의해 상기 로딩 버퍼부의 방향으로 길이가 연장되거나 그 반대 방향으로 길이가 단축되는, 전지 셀의 포메이션 장치.
- 제 1 항에 있어서, 상기 밀봉부는,가스 포켓부의 양면을 압지한 상태에서, 관통구를 밀봉하는, 밀봉 유닛;상기 밀봉 유닛의 일측과 결합되어, 밀봉 유닛이 전지 셀 방향으로 전진하거나 또는 그 반대 방향으로 후진하도록 하는 밀봉 유닛 이동 부재;상기 밀봉 유닛 이동 부재를 구동하는 구동부를 포함하는 전지 셀의 포메이션 장치.
- 제 5 항에 있어서, 상기 밀봉 유닛은,상기 관통구 및 그 주변을 압지하는 한 쌍의 관통구 압지 부재;상기 한 쌍의 관통구 압지 부재의 각 내측에 결합되어, 상기 관통구 압지 부재가 관통구 및 그 주변을 압지하였을 때, 관통구 또는 그 주변을 밀봉하는 한 쌍의 밀봉 부재; 및상기 한 쌍의 관통구 압지 부재의 일측과 결합된 밀봉 유닛 본체를 포함하고,상기 한 쌍의 관통구 압지 부재는, 관통구의 압지를 위해 상기 밀봉 유닛 본체 상에서 슬라이딩 이동 가능하도록 결합된 전지 셀의 포메이션 장치.
- 제 6 항에 있어서, 상기 밀봉 부재는, 한 쌍의 실링 툴을 포함하고,상기 실링 툴은, 관통구 주변을 열압착하여, 파우치를 융착하는 전지 셀의 포메이션 장치.
- 제 5 항에 있어서, 상기 밀봉 유닛 이동 부재는, 일측이 상기 밀봉 유닛과 결합된 연장봉을 포함하고 있고,상기 연장봉은 상기 구동부에 의해 상기 언로딩 버퍼부 방향으로 길이가 연장되거나, 그 반대 방향으로 길이가 단축되는, 전지 셀의 포메이션 장치.
- 제 1 항에 있어서, 상기 로딩 버퍼부 및 언로딩 버퍼부는 각각,전지 셀을 이송하는 이송부; 및다수의 전지 셀이 세워진 상태로 배열되도록 상기 전지 셀의 이송 방향을 따라 일정한 간격으로 설치된 다수의 정렬 가이드 부재; 를 포함하고,상기 정렬 가이드 부재들의 이격 공간 내에, 하나의 전지 셀이 수용되는 전지 셀의 포메이션 장치.
- 제 1 항에 있어서, 상기 포메이션 본체부는,다수의 전지 셀을 수용하는 프레임;전지 셀을 충방전하는 충방전부; 및전지 셀을 가압하는 가압 지그를 포함하는 전지 셀의 포메이션 장치.
- 제 10 항에 있어서, 상기 포메이션 본체부는, 에어 공급부를 더 포함하며, 상기 에어 공급부는, 상기 프레임의 상부에 위치하고, 프레임의 내부로 연통하는 관을 통해, 프레임 내부에 공기를 공급하는 전지 셀의 포메이션 장치.
- 제 10 항에 있어서, 상기 포메이션 본체부는, 가스 배기부를 더 포함하고, 상기 가스 배기부는, 상기 프레임 하부의 일측에 설치되고, 프레임 내부와 연통하는 관을 통해 포메이션 공정 중 발생하는 가스를 프레임의 외부로 배출하는 전지 셀의 포메이션 장치.
- 제 12 항에 있어서, 상기 가스 배기부는,가스를 외부로 배출하는 송풍팬; 및가스 중에 포함된 유해 물질을 흡착하는 필터를 포함하는 포메이션 장치.
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CN202280010531.1A CN116745948A (zh) | 2021-11-24 | 2022-11-23 | 用于电池单体的化成装置 |
EP22899006.5A EP4261970A1 (en) | 2021-11-24 | 2022-11-23 | Formation device for battery cell |
JP2023543029A JP2024504662A (ja) | 2021-11-24 | 2022-11-23 | 電池セルのフォーメーション装置 |
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KR1020210163119A KR20230076311A (ko) | 2021-11-24 | 2021-11-24 | 전지 셀의 포메이션 장치 |
KR10-2021-0163119 | 2021-11-24 |
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JP (1) | JP2024504662A (ko) |
KR (1) | KR20230076311A (ko) |
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CN116921230A (zh) * | 2023-09-18 | 2023-10-24 | 赣州龙凯科技有限公司 | 一种废旧动力电池回收处理设备及方法 |
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US20200373631A1 (en) * | 2019-01-07 | 2020-11-26 | Lg Chem, Ltd. | Degassing Device, and Facility and Method for Manufacturing Secondary Battery Comprising the Same |
KR102251496B1 (ko) * | 2020-11-10 | 2021-05-14 | (주)와이티에스 | 파우치형 전지의 가스 배출장치 및 가스 배출방법 |
KR102285961B1 (ko) * | 2020-06-26 | 2021-08-04 | 주식회사 알에스오토 | 이차 전지용 파우치의 디가스 시스템 |
KR20210113709A (ko) * | 2020-03-09 | 2021-09-17 | 엘지전자 주식회사 | 이차전지 제조 장치 |
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KR20190074591A (ko) | 2017-12-20 | 2019-06-28 | 주식회사 엘지화학 | 이차전지 제조방법 및 이차전지 제조장치 |
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- 2022-11-23 EP EP22899006.5A patent/EP4261970A1/en active Pending
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- 2022-11-23 WO PCT/KR2022/018561 patent/WO2023096324A1/ko active Application Filing
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KR20170112628A (ko) * | 2016-04-01 | 2017-10-12 | 주식회사 엘지화학 | 랙 타입 충방전 장치 |
US20200373631A1 (en) * | 2019-01-07 | 2020-11-26 | Lg Chem, Ltd. | Degassing Device, and Facility and Method for Manufacturing Secondary Battery Comprising the Same |
KR20210113709A (ko) * | 2020-03-09 | 2021-09-17 | 엘지전자 주식회사 | 이차전지 제조 장치 |
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KR102251496B1 (ko) * | 2020-11-10 | 2021-05-14 | (주)와이티에스 | 파우치형 전지의 가스 배출장치 및 가스 배출방법 |
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CN116921230A (zh) * | 2023-09-18 | 2023-10-24 | 赣州龙凯科技有限公司 | 一种废旧动力电池回收处理设备及方法 |
CN116921230B (zh) * | 2023-09-18 | 2023-11-24 | 赣州龙凯科技有限公司 | 一种废旧动力电池回收处理设备及方法 |
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CN116745948A (zh) | 2023-09-12 |
EP4261970A1 (en) | 2023-10-18 |
JP2024504662A (ja) | 2024-02-01 |
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