Secondary battery manufacturing device and secondary battery manufacturing method using the same
By using the rotating plate and rotary driving part in the secondary battery manufacturing equipment, the problem of bat ears when folding the bag film is solved, and tighter folding and more efficient battery manufacturing are achieved.
Patent Information
- Application Number
- CN202180028438.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-12-24
- Filing Date
- 2021-08-13
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2041-08-13
AI Technical Summary
Existing secondary battery manufacturing equipment is prone to producing bat ears when folding the bag film, resulting in increased battery volume, reduced energy density, and difficulty in designing size errors and assembly.
A secondary battery manufacturing equipment is designed, including a fixed plate, a rotary plate and a rotary drive section. When the electrode assembly is received on one side of the bag membrane, the rotating plate rotates and moves linearly, ensuring that the bag membrane is as close as possible when folded.
Through this equipment and method, the occurrence of bat ears can be effectively reduced, the energy density and assembly accuracy of the battery can be improved, and the production cost can be reduced.
Smart Images

Figure CN115428207B_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to Korean Patent Application No. 10-2020-0183968, filed on December 24, 2020, which is hereby incorporated by reference in its entirety. Technical Field
[0003] The present invention relates to a secondary battery manufacturing device and a secondary battery manufacturing method using the same. When an electrode assembly is accommodated in one side of a bag film and then the other side of the bag film is folded, the bag films are folded while being in contact with each other as closely as possible, thereby minimizing the occurrence of bat ears. Background Art
[0004] Unlike a non-rechargeable primary battery, a secondary battery refers to a battery that can be charged and discharged, and has been widely used in electronic devices such as mobile phones, notebook computers, and camcorders, or a power source for electric vehicles, and the like.
[0005] Generally speaking, there are many types of secondary batteries, such as nickel-cadmium batteries, nickel-metal hydride batteries, lithium-ion batteries, and lithium-ion polymer batteries. Secondary batteries are used not only in small products such as digital cameras, notebook computers, mobile phones, PDAs, and electric bicycles, but also in large products that require high power such as electric vehicles and hybrid vehicles, as well as energy storage devices or backup energy storage devices for storing surplus power generation and new renewable energy.
[0006] According to the material of the battery case containing the electrode assembly, the secondary battery is classified into a bag type, a can type, etc. In the bag type, the electrode assembly is contained in a bag made of a flexible polymer material having an irregular shape. In addition, in the can type, the electrode assembly is contained in a case made of a metal or plastic material having a predetermined shape, etc.
[0007] The pouch-type battery case is manufactured by performing a stretching process on a flexible pouch film to form a cup portion. In the stretching process, the pouch film is inserted into a press and the pouch film is pressed by a punch. Thus, the pouch film is stretched to form a cup portion.
[0008] Figure 1 and Figure 2 A secondary battery manufacturing apparatus according to the prior art is illustrated, in particular, an apparatus for folding a bag film is illustrated. Generally, in a secondary battery manufacturing apparatus, an electrode assembly is accommodated in a accommodating space of a cup portion, and then the bag film is folded and the sealing portion is sealed. Thus, a secondary battery is manufactured. When one side of the battery housing is folded, the edges that need to be sealed can be reduced to increase the processing speed. In addition, the finishing process can be reduced.
[0009] However, when the bag film is folded, heated and pressed to seal the battery case, the edge portion of the bag film to be folded is usually rotated, and the folding is performed at the same position without horizontal movement. Therefore, in a state where the bag film is overlapped in the folding area, the bag film slides and cannot be folded properly, thus generating gaps or irregularities. In addition, in some cases, a portion of the bag film protrudes outward. This is called a bat ear because the shape is similar to a bat's ear.
[0010] When bat ears are formed in secondary battery bags, the volume of the battery is unnecessarily increased and the energy density relative to the volume is reduced. In addition, errors occur in the design dimensions and the battery module is not easy to assemble. When measuring the dimension from the bottom surface of the battery to the end of the lead, the measurement value of the lead position is distorted due to the length of the bat ears. In addition, cracks will be generated in the bat ear part when assembling the module, so there is a need for a secondary battery manufacturing device and a manufacturing method that can minimize the occurrence of bat ears when folding the bag film. Summary of the invention
[0011] Technical issues
[0012] The present invention is completed to solve the above-mentioned problems, and one object of the present invention is to provide a secondary battery manufacturing device and a secondary battery manufacturing method. Here, when the electrode assembly is accommodated in one side of the bag film and then the other side of the bag film is folded, the rotating plate on which the other side of the bag film is placed rotates while linearly moving toward the fixed plate on which the one side of the bag film is placed. Therefore, the bag films are folded while being in contact with each other as closely as possible, and therefore, the occurrence of bat ears can be minimized.
[0013] Technical Solution
[0014] The secondary battery manufacturing equipment according to the present invention includes: a fixed plate, on which one side of the bag film is placed; a rotating plate, which is arranged on the side of the fixed plate and on which the other side of the bag film is placed; and a rotating drive unit, which is coupled to the rotating plate and rotates the rotating plate above the fixed plate, wherein the rotating plate is rotated by the rotating drive unit and moves linearly toward the fixed plate.
[0015] The rotating plate may linearly move toward the fixed plate while or after being rotated by the rotation driving portion.
[0016] The secondary battery manufacturing equipment may further include: a fixed support portion configured to support the fixed plate; and a movable support portion configured to support the rotation driving portion and the rotating plate coupled to the rotation driving portion, wherein as the movable support portion moves linearly toward the fixed support portion, the rotating plate moves linearly toward the fixed plate.
[0017] The secondary battery manufacturing apparatus may further include a linear driving portion that is disposed below the moving support portion and linearly moves the moving support portion toward the fixed support portion.
[0018] The linear driving part may include a driving body configured to provide a driving force and a base which is linearly driven above the driving body, wherein the moving support part is coupled to the base and moves linearly.
[0019] The rotation driving part may include a servo motor or a cylinder.
[0020] The rotation driving part may be coupled to a side surface of the rotating plate.
[0021] The rotating plate may include a first rotating plate and a second rotating plate, which are separated from each other and located on the same plane to place the other side of the bag film thereon, and the rotation driving part may include a first rotating driving part and a second rotating driving part respectively coupled to the first rotating plate and the second rotating plate.
[0022] The secondary battery manufacturing apparatus may further include a body part disposed below the fixed support part and the movable support part and having a mold shape.
[0023] The secondary battery manufacturing method according to the present invention includes: placing a bag film on a fixed plate and a rotating plate arranged on a side of the fixed plate; folding the bag film as a rotation drive unit coupled to the rotating plate rotates the rotating plate above the fixed plate; and linearly moving the rotating plate toward the fixed plate.
[0024] The linear movement may be performed simultaneously with or after the folding of the bag film.
[0025] In the linear movement, the rotating plate may move linearly toward the fixed plate as the moving support portion moves linearly toward the fixed support portion, wherein the moving support portion is configured to support the rotating drive portion and the rotating plate coupled to the rotating drive portion, and the fixed support portion is configured to support the fixed plate.
[0026] The linear movement may be performed by a linear driving portion that is disposed below the moving support portion and linearly moves the moving support portion.
[0027] The linear driving part may include a driving body configured to provide a driving force and a base linearly driven above the driving body, wherein the linear movement is performed as the moving support part is coupled to the base and linearly moves.
[0028] Beneficial Effects
[0029] The secondary battery manufacturing equipment according to the present invention includes: a fixed plate on which one side of the bag film is placed; a rotating plate provided on the side of the fixed plate and on which the other side of the bag film is placed; and a rotation driving unit coupled to the rotating plate and rotating the rotating plate above the fixed plate. The rotating plate is rotated by the rotation driving unit and moves linearly toward the fixed plate. Therefore, when the electrode assembly is accommodated in one side of the bag film and then the other side of the bag film is folded, the bag films are folded while being in contact with each other as closely as possible, and thus, the occurrence of bat ears can be minimized. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 is a plan view illustrating a secondary battery manufacturing apparatus and its operation according to the related art.
[0031] Figure 2 is a side view illustrating a secondary battery manufacturing apparatus and its operation according to the related art.
[0032] Figure 3 is a plan view illustrating a secondary battery manufacturing apparatus and its operation according to a first embodiment of the present invention.
[0033] Figure 4 is a plan view illustrating a state in which a bag film is placed and rotated in the secondary battery manufacturing apparatus according to the first embodiment of the present invention.
[0034] Figure 5 is a side view illustrating a secondary battery manufacturing apparatus and its operation according to a first embodiment of the present invention.
[0035] Figure 6 is a flowchart illustrating a secondary battery manufacturing method according to a second embodiment of the present invention.
[0036] Figure 7 (a) is a view illustrating a secondary battery manufactured by a secondary battery manufacturing apparatus and a secondary battery manufacturing method according to the related art, and Figure 7 (b) is a view illustrating a secondary battery manufactured by the secondary battery manufacturing apparatus according to the first embodiment of the present invention and the secondary battery manufacturing method according to the second embodiment. DETAILED DESCRIPTION
[0037] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. However, the present invention can be implemented in different forms and is not limited or restricted by the following embodiments.
[0038] In order to clearly describe the present invention, parts not related to the description are omitted, and descriptions related to known functions or configurations are excluded to avoid unnecessary confusion of the subject matter of the present invention. Throughout the specification, when reference numerals are given to components in each figure, the same or similar components will be represented by the same or similar reference numerals.
[0039] Furthermore, the terms or words used in the specification and claims should not be restrictively interpreted as ordinary meanings or dictionary-based meanings, but should be interpreted as meanings and concepts consistent with the technical ideas of the present invention based on the principle that the inventor can appropriately define the concepts of the terms to describe his or her invention in the best manner.
[0040] First embodiment
[0041] Figure 3 is a plan view illustrating a secondary battery manufacturing apparatus and its operation according to a first embodiment of the present invention. Figure 4 is a plan view illustrating a state in which a bag film is placed and rotated in the secondary battery manufacturing apparatus according to the first embodiment of the present invention. Figure 5 is a side view illustrating a secondary battery manufacturing apparatus and its operation according to a first embodiment of the present invention.
[0042] Reference Figures 3 to 5 , the secondary battery manufacturing apparatus 100 according to the first embodiment of the present invention includes a fixed plate 110, a rotating plate 120, and a rotation driving part 130. The rotating plate 120 is rotated by the rotation driving part 130 and linearly moves toward the fixed plate 110. Hereinafter, each component will be described in detail.
[0043] First, the secondary battery manufacturing apparatus 100 according to the first embodiment of the present invention relates to an apparatus 100 for manufacturing a secondary battery. The electrode assembly 12 is accommodated in a cup portion formed on one side 11-1 of a bag film, and the other side 11-2 of the bag film is folded to form a secondary battery. The bag film 11 can be formed by stacking a plurality of layers formed of materials such as polypropylene (PP), aluminum foil, nylon, and polyethylene terephthalate (PET).
[0044] like Figure 3 (a) and Figure 4 As shown in (a), one side 11-1 of the bag film is placed on the fixed plate 110. The rotating plate 120 is provided on the side of the fixed plate 110, and the other side 11-2 of the bag film is placed on the rotating plate 120. The fixed plate 110 and the rotating plate 120 may have a flat plate shape or a shape having a plurality of auxiliary frames arranged in a comb shape on the side of a longer main frame so that the bag film 11 can be placed thereon.
[0045] like Figure 3 (b) and Figure 4 As shown in (b), the rotating plate 120 is driven to rotate above the fixed plate 110, and the other side 11-2 of the bag film placed on the rotating plate 120 can be folded. The rotation drive unit 130 is coupled to the rotating plate 120, and the rotating drive unit 130 rotates the rotating plate 120 above the fixed plate 120. The rotating drive unit 130 rotates the rotating plate 120 and the bag film 11 together, thereby folding the bag film 11 to form a bag. The rotation drive unit 130 includes a servo motor or a cylinder to provide a rotational force to the rotating plate 120, and can be coupled to the side of the rotating plate 120.
[0046] The rotating plate 120 may include a first rotating plate 121 and a second rotating plate 122, and the first rotating plate 121 and the second rotating plate 122 may be positioned separately from each other in the same plane to place the bag film 11 thereon. For example, the rotating plate 120 may be separated into the first rotating plate 121 and the second rotating plate 122 relative to a virtual line perpendicular to the rotation axis thereof. In addition, the rotation driving portion 130 may include a first rotating driving portion 131 coupled to the first rotating plate 121 and a second rotating driving portion 132 coupled to the second rotating plate 122.
[0047] In the secondary battery manufacturing apparatus 100 according to the first embodiment of the present invention, the rotating plate 120 is rotated by the rotation driving part 130 and linearly moved toward the fixed plate 110. Figure 3 and 4 As shown, the linear movement of the rotating plate 120 toward the fixed plate 110 represents movement in the direction of AA′ to BB′.
[0048] The other side 11-2 of the bag film is placed on the rotating plate 120. In addition, due to the rotation of the rotating plate 120, the other side 11-2 of the bag film is folded over one side 11-1 of the bag film placed on the fixed plate 110. In the secondary battery manufacturing equipment according to the related art, the rotating plate is rotated only over the fixed plate. Therefore, the bag film having a certain thickness slides in an overlapping state in the folding area and cannot be properly folded, thereby generating gaps or irregularities. In addition, in some cases, bat ears are formed in which a portion of the bag film protrudes outward. However, as in the first embodiment of the present invention, the rotating plate 120 moves in a direction toward the fixed plate 110, i.e., in the direction of AA' to BB', i.e., in a direction toward the inner side of the folded portion of the bag film 11 while rotating. At this time, as in Figure 7 (b) shows that the bag film is folded in a state where one side of the bag film is in close contact with the other side as much as possible. Therefore, the occurrence of bat ears can be minimized. However, when the linear movement of the rotating plate 120 occurs earlier, the effect of folding in a state where the bag film 11 is bent or in close contact can be reduced. Therefore, while or after the rotating drive unit 130 rotates the rotating plate 120, the rotating plate 120 can be linearly moved toward the fixed plate 110.
[0049] The rotating plate 120 may be provided with an anti-skid device for preventing the bag film 11 placed thereon from sliding. The anti-skid device includes all anti-skid members or surface treatments for anti-skid, and the anti-skid device means a device for increasing the friction force applied to the bag film 11 placed thereon on the surface of the rotating plate 120. As described above, when the anti-skid device is provided on the rotating plate 120, the bag film 11 can be folded without sliding while being placed on the rotating plate 120 during the rotation of the rotating plate 120. In particular, when the rotating plate 120 moves linearly as well as rotates, due to the friction force, the effect of the other side 11-2 of the bag film moving forward with the linear movement of the rotating plate 120 can be maximized. Even the anti-skid device may be provided on the fixed plate 110 together with the rotating plate 120. In this case, the effect of folding the bag film 11 without sliding can be produced in the same manner as in the case of the anti-skid device provided on the rotating plate 120.
[0050] Reference Figure 5 , the secondary battery manufacturing apparatus 100 according to the first embodiment of the present invention may further include: a fixed support portion 140 supporting the fixed plate 110; and a movable support portion 150 supporting the rotation drive portion 130 and the rotating plate 120 coupled to the rotation drive portion 130. The fixed support portion 140 and the movable support portion 150 may have various shapes and materials such as a metal frame and a plywood, as long as they play a role in supporting the fixed plate 110 and the rotating plate 120 from below. The movable support portion 150 may be coupled to both the rotating plate 120 and the rotation drive portion 130 to support them, or may not be directly coupled to the rotating plate 120 but only directly coupled to the rotation drive portion 130 coupled to the rotating plate 120 to support them.
[0051] As the movable support portion 150 moves linearly toward the fixed support portion 140, the rotating plate 120 can move linearly toward the fixed plate 110. The rotating plate 120 folds the bag film 11 while rotating and moving linearly. The rotation drive portion 130 provides a rotational force, and the movable support portion 150 supporting the rotation drive portion 130 from below moves linearly. Therefore, the rotating plate 120 coupled to the rotation drive portion 130 can perform rotational motion and linear motion at the same time. As described above, the power of the rotational motion and the linear motion is separately provided to the rotating plate 120, and therefore, the rotational motion and the linear motion can be easily adjusted as needed. In addition, the bag film 11 can also be folded in a state where one side and the other side of the bag film are in contact with each other as closely as possible.
[0052] The secondary battery manufacturing device 100 according to the first embodiment of the present invention may further include a linear drive unit 160, which is arranged below the mobile support unit 150 and causes the mobile support unit 150 to move linearly toward the fixed support unit 140. The linear drive unit 160 is a device that provides power to achieve linear motion, for example, it can be a Cartesian robot. The linear drive unit 160 may include a driving body 161 that provides a driving force and a base 162 that is linearly driven above the driving body 161. The mobile support unit 150 may be coupled to the base 162 and move linearly. The base 162 can play a role in providing power to the driving body 161 above the driving body 161, while stably supporting the mobile support unit 150, especially when the mobile support unit 150 is formed by multiple components, it can play a role in providing the same power from one driving body 161 to multiple mobile support units 150.
[0053] The main body 170 may be disposed below the fixed support portion 140 and the movable support portion 150. The main body 170 is formed in a mold shape and supports the fixed support portion 140 and the movable support portion 150 from below. In particular, when the secondary battery manufacturing apparatus 100 according to the first embodiment of the present invention further includes a linear drive portion 160, the linear drive portion 160 is disposed above the main body 170, and the movable support portion 150 is disposed above the linear drive portion 160. Therefore, the movement of the rotating plate 120 can be stably performed.
[0054] Second embodiment
[0055] Figure 6 is a flowchart illustrating a secondary battery manufacturing method according to a second embodiment of the present invention.
[0056] The second embodiment of the present invention is different from the first embodiment in that a method of manufacturing a secondary battery using the secondary battery manufacturing apparatus 100 of the first embodiment is provided.
[0057] The differences of the second embodiment will be described with emphasis, and features common to the first embodiment will be omitted as much as possible. That is, it is obvious that features not described in the second embodiment can be regarded as features of the first embodiment as needed.
[0058] Reference Figure 6 The secondary battery manufacturing method according to the second embodiment of the present invention includes a bag film placement process (S210), a bag film folding process (S220) and a linear movement process (S230). Figures 3 to 7 Describe each process in detail.
[0059] In the bag film placement process (S210), the bag film 11 is placed on the fixed plate 110 and the rotating plate 120 provided on the side of the fixed plate 110. Then, in the bag film folding process (S220), the rotating driving unit 130 coupled to the rotating plate 120 rotates the rotating plate 120 to the top of the fixed plate 110, and the bag film 11 is folded by the rotation of the rotating plate 120. In the linear movement process (S230), the rotating plate 120 moves linearly toward the fixed plate 110. Here, as shown in FIG. Figure 3 and 4 As shown, the linear movement of the rotating plate 120 toward the fixed plate 110 represents the movement in the direction from AA' to BB'. Because, when the other side 11-2 of the bag film is folded to the one side 11-1 of the bag film, as shown in FIG. Figure 7 As shown in (b), the bag films 11 are folded while being in contact with each other as closely as possible. Therefore, the occurrence of bat ears in the secondary battery 10 can be minimized.
[0060] When the linear movement step (S230) is performed earlier than the bag film folding step (S220), the effect of folding the bag film 11 in a state where the bag film 11 is bent or in close contact at the folding area may be reduced. In order to prevent this, the linear movement step (S230) may be performed simultaneously with the bag film folding step (S220) or after the bag film folding step (S220).
[0061] The linear movement process (S230) is described in detail. In the linear movement process (S230), the mobile support part 150 supporting the rotary drive part 130 and the rotary plate 120 coupled to the rotary drive part 130 moves linearly toward the fixed support part 140 supporting the fixed plate 110, so that the rotary plate 120 can move linearly toward the fixed plate 110. The rotary plate 120 folds the bag film 11 while rotating and moving linearly. The rotary drive part 130 provides a rotational force, and the mobile support part 150 supporting the rotary drive part 130 from below moves linearly. Therefore, the rotary plate 120 coupled to the rotary drive part 130 can perform rotational movement and linear movement at the same time. As described above, the power of the rotational movement and the linear movement is separately provided to the rotary plate 120, and therefore, the rotational movement and the linear movement can be easily adjusted as needed. In addition, the bag film 11 can also be folded in a state where one side and the other side of the bag film are in contact with each other as closely as possible.
[0062] In addition, the linear movement process (S230) may be performed by a linear driving part 160, and the linear driving part 160 may be a component that is disposed below the mobile support part 150 and causes the mobile support part 150 to move linearly. The linear driving part 160 may include a driving body 161 that provides a driving force and a base 162 that is linearly driven above the driving body 161. The mobile support part 150 may be coupled to the base 162 and move linearly together with the base 162. The base 162 may play a role in stably supporting the mobile support part 150 while providing power to the driving body 161 above the driving body 161, and in particular, when the mobile support part 150 is formed of a plurality of components, it may play a role in providing the same power from one driving body 161 to a plurality of mobile support parts 150.
[0063] Although the present invention has been described through specific embodiments and drawings, the present invention is not limited thereto, and those skilled in the art to which the present invention pertains may make various changes and modifications within the technical idea of the present invention and the equivalent scope of the appended claims.
[0064] [Explanation of Reference Numerals]
[0065] 10: Secondary battery
[0066] 11: Bag film
[0067] 11-1: One side of the bag film
[0068] 11-2: The other side of the bag film
[0069] 12: Electrode assembly
[0070] 100: Secondary battery manufacturing equipment
[0071] 110: Fixed plate
[0072] 120: Rotating plate
[0073] 121: First rotating plate
[0074] 122: Second rotating plate
[0075] 130: Rotation drive unit
[0076] 131: First rotation drive unit
[0077] 132: Second rotation drive unit
[0078] 140: Fixed support
[0079] 150: Mobile support
[0080] 160: Linear drive unit
[0081] 161: Driving body
[0082] 162: Base
[0083] 170: Main body
[0084] S210: Bag film placement process
[0085] S220: Bag film folding process
[0086] S230: Linear movement process
Claims
1. A secondary battery manufacturing device, comprising: a fixing plate on which one side of the bag film is placed; A rotating plate, arranged on a side of the fixed plate, and the other side of the bag film is placed on the rotating plate; and a rotation driving unit coupled to the rotating plate and causing the rotating plate to rotate above the fixed plate, The rotating plate is rotated by the rotating driving part and moves linearly toward the fixed plate. The rotating plate linearly moves toward the fixed plate while or after being rotated by the rotation driving portion.
2. The secondary battery manufacturing equipment according to claim 1, further comprising: a fixed support portion configured to support the fixed plate; and a mobile support portion configured to support the rotation drive portion and the rotation plate coupled to the rotation drive portion, As the movable support portion moves linearly toward the fixed support portion, the rotating plate moves linearly toward the fixed plate. 3 . The secondary battery manufacturing apparatus according to claim 2 , further comprising a linear driving portion which is disposed below the moving support portion and linearly moves the moving support portion toward the fixed support portion.
4. The secondary battery manufacturing apparatus according to claim 3, wherein the linear drive portion comprises a drive body configured to provide a driving force and a base linearly driven above the drive body, The moving support is coupled to the base and moves linearly. 5 . The secondary battery manufacturing apparatus according to claim 1 , wherein the rotation driving portion includes a servomotor or an air cylinder. 6 . The secondary battery manufacturing apparatus according to claim 1 , wherein the rotation driving part is coupled to a side surface of the rotating plate.
7. The secondary battery manufacturing apparatus according to claim 1, wherein the rotating plate comprises a first rotating plate and a second rotating plate, the first rotating plate and the second rotating plate are separated from each other and located on the same plane to place the other side of the bag film thereon, and The rotation driving portion includes a first rotation driving portion and a second rotation driving portion respectively coupled to the first rotation plate and the second rotation plate. 8 . The secondary battery manufacturing apparatus according to claim 2 , further comprising a body portion disposed below the fixed support portion and the movable support portion and having a mold shape.
9. A method for manufacturing a secondary battery, comprising: placing the bag film on a fixed plate and a rotating plate arranged on a side of the fixed plate; As a rotation drive unit coupled to the rotating plate rotates the rotating plate above the fixed plate, the bag film is folded; and causing the rotating plate to move linearly toward the fixed plate, Therein, the linear movement is performed simultaneously with or after the folding of the bag film.
10. The secondary battery manufacturing method according to claim 9, wherein: In the linear movement, The rotating plate moves linearly toward the fixed plate as a moving support portion configured to support the rotating drive portion and the rotating plate coupled to the rotating drive portion moves linearly toward a fixed support portion configured to support the fixed plate. 11 . The secondary battery manufacturing method according to claim 10 , wherein the linear movement is performed by a linear driving portion that is provided below the moving support portion and linearly moves the moving support portion.
12. The secondary battery manufacturing method according to claim 11, wherein the linear driving part comprises a driving body configured to provide a driving force and a base linearly driven above the driving body, The linear movement is performed as the moving support is coupled to the base and moves linearly.
Citation Information
Patent Citations
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CN106816559A
Plastic -aluminum membrane hem mechanism
CN208336285U