System for pressing and charging / discharging battery cells

Abstract

The present invention relates to a system for pressing and charging / discharging a battery cell, the system comprising: an inner frame into which the battery cell is inserted; a plate for pressing the battery cells; a pressing block that is movable on the plate in a direction in which the plate extends, and that sandwiches the battery cells; and an outer frame disposed outside the inner frame and having an inner tab electrically connected to the pressing block through a wire.

Description

Technical Field

[0001] This application claims the benefit of and priority to Korean Patent Application No. 10-2022-0113937, filed on September 8, 2022, and incorporates all of the disclosure of the Korean Patent Application as a part of this specification by reference.

[0002] The present invention relates to a battery cell pressurizing and charging / discharging system, and more particularly, to a battery cell pressurizing and charging / discharging system in which a battery cell can be pressurized and charged / discharged without changing an inner frame thereof even if a size of the battery cell is changed. Background Art

[0003] In recent years, as energy prices have risen due to the depletion of fossil fuels and environmental pollution has increased, the demand for environmentally friendly alternative energy sources has grown. Therefore, various power generation technologies such as nuclear power, wind power, tidal power, and solar power are being studied, and there is a growing interest in power storage that more efficiently utilizes the generated energy.

[0004] In particular, with the technological development and increased demand for medium and large applications such as electric vehicles and energy storage systems (ESS), the demand for batteries as energy sources has rapidly increased, and research on batteries that can meet various needs is being conducted.

[0005] For example, in terms of battery shape, there is a high demand for thin prismatic batteries and pouch-type batteries, while in terms of materials, there is a high demand for lithium secondary batteries such as lithium ion batteries, lithium ion polymer batteries, and all-solid-state lithium batteries having advantages such as high energy density, discharge voltage, and output stability.

[0006] This secondary battery has: an electrode assembly including an anode, a cathode, a separator disposed between the anode and the cathode; and an electrolyte embedded in the battery case, wherein an anode terminal tab and a cathode terminal tab are welded to two electrode terminal tabs and sealed to be exposed to the outside of the battery case. These electrode terminal tabs are electrically connected to an external device through contact, and the battery can supply power to or receive power from the external device through the electrode terminal tabs.

[0007] In one aspect, the secondary battery can be manufactured by housing the electrode assembly in a battery case and injecting an electrolyte, followed by an activation step to activate the battery. The activation step may include mounting the secondary battery to a frame in a charging and discharging device, and then charging / discharging the secondary battery under pressure to a condition required for activation.

[0008] If the size of the electrode assembly changes, the frame must be reused to match the new size. As a result, time and cost in manufacturing secondary batteries are wasted. Therefore, research is being conducted to solve these problems. Summary of the invention

[0009] [Technical issues]

[0010] An object of the present invention is to provide a battery cell pressurizing and charging / discharging system in which pressurizing and charging / discharging can be performed using the same frame even when the size of an electrode assembly is changed.

[0011] Furthermore, an object of the present invention is to provide a battery cell pressurizing and charging / discharging system which allows the use of battery cells for capacity testing instead of using battery cells dedicated to charging / discharging.

[0012] [Technical solution]

[0013] In order to achieve the above-mentioned object of the present invention, a battery cell pressurizing and charging / discharging system according to one embodiment of the present invention includes: an inner frame into which a battery cell is loaded; a plate for pressurizing the battery cell; a pressurizing block capable of moving on the plate in a direction in which the plate extends and clamping the battery cell; and an outer frame disposed outside the inner frame and having an inner terminal tab electrically connected to the pressurizing block through wiring.

[0014] In one embodiment, the pressurizing block may include a circuit board disposed in a portion contacting the battery cell.

[0015] In one embodiment, the system may further include a load sensor disposed within the inner frame and capable of measuring pressure applied to the battery cell.

[0016] In one embodiment, the system may further include a pressurizing shaft for pressurizing the plate, wherein the pressurizing shaft pressurizes the plate by rotating.

[0017] In one embodiment, the rotation may be a screw rotation.

[0018] In one embodiment, the press block may clamp the tabs of the battery cell.

[0019] In one embodiment, the battery cell may be a bidirectional tab battery cell having tabs disposed at both ends.

[0020] In one embodiment, the battery cell may be a one-way tab battery cell having a tab disposed at only one end.

[0021] In one embodiment, two or more compression blocks may be placed on one plate.

[0022] In one embodiment, the system may further include: a conveying device for conveying the outer frame; and a charging / discharging device in which the conveyed outer frame is placed, wherein the charging / discharging device has an external terminal tab electrically connected to the internal terminal tab, and wherein the current applied by the charging device is conveyed to the battery cell via the external terminal tab, the internal terminal tab and the pressurizing block.

[0023] In one embodiment, the outer terminal tab may be a terminal tab holder that clamps and electrically connects the inner terminal tab.

[0024] In one embodiment, the wiring may connect the inner lug and the pressure block in the form of a spring.

[0025] [Beneficial Effects]

[0026] According to the present invention, the battery cell pressurizing and charging / discharging system can pressurize battery cells of various sizes without changing the inner frame regardless of the size of the battery cells by enabling the pressurizing blocks to move on the plates to clamp the tabs of the battery cells.

[0027] The wiring arranged in the form of a spring can be stretched. Therefore, the inner lug can be connected to the pressure block by the wiring, which is stretched in length, while the inner lug is kept fixed in position within the inner frame. If the pressure block is moved, the position of the inner lug may not change, but only the length of the wiring may increase or decrease. The outer lug may be fixedly placed at a position corresponding to the inner lug within the outer frame.

[0028] Therefore, the battery cell pressurizing and charging / discharging system can use the same inner frame, outer frame and charging / discharging device regardless of the size of the battery cell. Therefore, compared with the conventional pressurizing and charging / discharging system that needs to replace the frame every time the size of the battery cell changes, the battery cell pressurizing and charging / discharging system can save time and money. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a block diagram schematically illustrating a battery cell pressurization and charging / discharging system according to one embodiment of the present invention.

[0030] Figure 2 It is shown Figure 1 A diagram of one embodiment of a pressurized tray.

[0031] Figure 3 is placed Figure 1 FIG. 1 is a diagram showing the pressurized state of a battery cell within a pressurized tray.

[0032] Figures 4a to 4c It is shown that the Figure 1 A diagram of one embodiment of a pressurizing block in a pressurizing tray.

[0033] Figure 5 is a diagram showing a single cell pressurizing and charging / discharging system according to one embodiment of the present invention.

[0034] Figure 6 is a diagram showing a pressurizing tray according to one embodiment of the present invention.

[0035] Figure 7 is a diagram showing a pressurizing tray according to one embodiment of the present invention.

[0036] Figures 8a to 8c It is shown that the Figure 7 A diagram of one embodiment of a pressurizing block in a pressurizing tray. DETAILED DESCRIPTION

[0037] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the terms and words used in this specification and claims should not be interpreted in their ordinary or dictionary meanings, but in the sense and concept consistent with the technical concept of the present invention, which is based on the principle that the inventor can appropriately define the concept of the term to best describe his invention. Therefore, it should be understood that the embodiments described in the specification and the configurations shown in the accompanying drawings are only some of the most preferred embodiments of the present invention, rather than an exhaustive list of the technical concept of the present invention, and there may be various equivalents and modifications that can replace them when submitted.

[0038] Figure 1 is a block diagram schematically illustrating a battery cell pressurization and charging / discharging system according to one embodiment of the present invention.

[0039] Reference Figure 1 , the battery cell pressurizing and charging / discharging system 1000 may include a pressurizing tray 1, a conveying device 2, and a charging / discharging device 3. The pressurizing tray 1 may pressurize the battery cells. To this end, the pressurizing tray 1 may be loaded with battery cells. The charging / discharging device 3 may charge and discharge the battery cells placed in the pressurizing tray 1. The process of charging / discharging the battery cells may be defined as an activation process of activating the battery cells. During the activation process, the battery cells may expand due to a change in the thickness of the electrode plates or gas generation. The battery cell pressurizing and charging / discharging system 1000 allows the charging / discharging device 3 to charge the battery cells while the pressurizing tray 1 pressurizes the battery cells to prevent the battery cells from expanding.

[0040] The pressurized pallet 1 containing the battery cells can be conveyed to the charging / discharging device 3 by the conveying device 2. The conveying device 2 can be used in various ways as long as the pressurized pallet 1 can be conveyed to the charging / discharging device 3. The conveying device 2 may include a conveyor belt, a crane, etc. As the crane, a stacking crane can be used. For example, in the pressurizing stage, the battery cells can be loaded into the pressurized pallet 1. The pressurized pallet 1 can be moved to the charging / discharging device 3 via a conveyor belt while pressurizing the loaded battery cells. Then, the stacking crane can load the pressurized pallet 1 into the charging / discharging device 3.

[0041] The pressurizing tray 1 may be introduced into the charging / discharging device 3 through the conveying device 2 to be electrically connected with the charging / discharging device 3. The charging / discharging device 3 may apply current to the pressurizing tray 1.

[0042] Figure 2 It is shown Figure 1 A diagram of one embodiment of a pressurized tray, and Figure 3 It is shown in Figure 1 Figure 1 shows a pressurized battery cell within a pressurized tray.

[0043] Reference Figure 2 The pressurizing tray 1 may include an inner frame 10, an outer frame 20, a battery cell 30, a board, a pressurizing shaft 120, a pressurizing adjusting member 130, a load sensor 140, a pressurizing block 150, an inner tab 160, and a wiring 170. The board may include a main board 100 and a sub-board 110.

[0044] The inner frame 10 may provide a space for accommodating the battery cell 30. The inner frame 10 may be made of a rigid material to accommodate and fix the battery cell 30. The inner frame 10 may be loaded with the battery cell 30. After the battery cell 30 is inserted into the inner frame 10, the battery cell 30 may be activated by pressurizing and charging / discharging the battery cell 30. At least one battery cell 30 may be introduced.

[0045] The main board 100 and the sub-board 110 can pressurize the battery cell 30. To this end, the main board 100 can have a plate-like structure. The main board 100 can extend in a first direction DR1. The main board 100 can be pressurized in a second direction DR2 perpendicular to the first direction DR1. To achieve this, the main board 100 can be made of a material with high mechanical rigidity that does not deform under high heat and high pressure. For example, the main board 100 can be made of a metal material. Of course, the main board 100 can also be made of a material other than metal, such as aluminum, stainless steel, reinforced plastic, reinforced ceramic or reinforced glass, as long as it has good mechanical rigidity. When the main board 100 is pressed in the second direction DR2, the sub-board 110 can be pushed sequentially in the second direction DR2.

[0046] The main board 100 and the sub-board 110 may have a slide fixed therebetween. The slide may be pinned to the top of the main board 100 and the sub-board 110 and may be used to hold the battery cell before the battery cell is pressurized. The slide may have a length less than the size of the battery cell. Preferably, the slide is placed to cover the length of the body of the battery cell. If the tabs of the battery cell are covered by the slide, the pressurization block 150 cannot be electrically connected to the tabs of the battery cell. Each slide may include flame retardant coated paper or film.

[0047] like Figure 3 As shown, a plurality of battery cells 30 and a main plate 100 and a sub plate 110 may be placed in the inner frame 10, wherein the main plate 100 and the sub plate 110 are positioned adjacent to each of the plurality of battery cells 30. Each battery cell 30 may be pressurized by the adjacent main plate 100 and the sub plate 110.

[0048] The pressurizing shaft 120 and the pressurizing adjusting member 130 are capable of pressurizing the main board 100. The pressurizing adjusting member 130 can rotate each pressurizing shaft 120 by rotating a gear. For example, each pressurizing shaft 120 can pressurize the main board 100 by rotating a screw. The pressure applied to the main board 100 can be transmitted to the sub-board 100, whereby a plurality of battery cells 30 can be pressurized together. Each pressurizing shaft 120 can have a thread, and the sub-board 110 can be in contact with the thread through a bearing or the like. This allows the sub-board 110 to move in the second direction DR2 by rotation of the screw on each pressurizing shaft 120. Although not shown, a mounting shaft for mounting the main board 100 and the sub-board 110 can be added.

[0049] The load sensor 140 may measure the pressure applied to the battery cell 30. The load sensor 140 may be disposed within the inner frame 10 in the direction in which the pressure is applied by the pressurizing shaft 120. Figure 3 As shown, when the pressurizing shaft 120 applies pressure, the load sensor 140 may contact one of the sub-plates 110, and the sub-plate 110 may apply pressure to the load sensor 140. If a pressure higher than a preset pressure is applied, the load sensor 140 may generate a signal to stop pressurization. For example, if a pressure greater than 3000kgf is applied, the load sensor 140 may generate a signal to stop pressurization. In this way, the pressurized tray 1 can prevent the battery cell 30 from being damaged by excessive pressure applied to the battery cell 30. The load sensor 140 is electrically connected and operable only during the pressurization stage, not during the charging / discharging process.

[0050] The pressurizing block 150 may be disposed on the main board 100 and the sub-board 110. The pressurizing block 150 may be moved on the main board 100 and the sub-board 110 along the direction in which the main board 100 and the sub-board 110 extend, that is, the pressurizing block 150 may be moved along the first direction DR1. Therefore, even if the length of each battery cell 30 in the first direction DR1 changes, the inner frame 10 may be moved to clamp the battery cells 30 having different lengths by moving only the pressurizing block 150 without changing the inner frame 10. Each pressurizing block 150 may be electrically connected to the wiring 170.

[0051] There may be two or more pressurizing blocks 150 on the main board 100 and the sub-board 110. The pressurizing blocks 150 may contact the tabs on the battery cells 30. Figure 2 and Figure 3 The battery cell 30 shown in the figure may be defined as a bidirectional tab battery cell having tabs at both ends. The pressurizing blocks 150 may each contact a tab located at one of the two ends of the battery cell 30. In this case, the pressurizing block 150 may include a circuit board placed in contact with the corresponding battery cell 30. The circuit board may be a printed circuit board. The pressurizing block 150 may be electrically connected to the battery cell 30 through the circuit board.

[0052] The inner wiring tab 160 may be placed on the inner side of the outer frame 20. The inner wiring tab 160 may be connected to the pressurizing block 150 via the wiring 170. Therefore, the signal communicated from the outside to the inner wiring tab 160 may be communicated to the pressurizing block 150 via the wiring 170. The wiring 170 may be provided in the form of a spring to facilitate length variation. Therefore, when the main board 100 and the sub-board 110 move in the second direction DR2, the wiring 170 may not be disconnected. If the wiring 170 has a fixed length, the wiring 170 may be disconnected from the pressurizing block 150 as the main board 100 and the sub-board 110 move. Thereafter, the signal communicated to the main board 100 may be communicated to the battery cell 30 via the pressurizing block 150. In other words, the inner wiring tab 160, the wiring 170, the pressurizing block 150 and the battery cell 30 may be electrically connected.

[0053] Figures 4a to 4c It is shown that the Figure 1 A diagram of one embodiment of a pressurizing block in a pressurizing tray.

[0054] Figure 4a is a view of the sub-board 110 seen from the second direction DR2, and Figure 4b is a view of the sub-board 110 viewed from a direction opposite to the second direction DR2. Figure 4a, holes H may be formed at both ends of the sub-plate 110. The pressurizing shaft 120 as described above may be placed through the hole H. The pressurizing blocks 150 may be placed on the sub-plate 110. Each pressurizing block 150 may be movable in the first direction DR1 and in a direction opposite to the first direction DR1 on the sub-plate 110. This allows each pressurizing block 150 to move to contact the tabs of the battery cells even when the length of the battery cells in the first direction DR1 changes.

[0055] Figure 4c 1 is a side view of the sub-plate 110. The pressurizing block 150 may include a first sub-pressurizing block 151, a second sub-pressurizing block 152, and a connecting member 153. The first sub-pressurizing block 151 and the second sub-pressurizing block 152 may be connected by the connecting member 153. In this way, the pressurizing block 153 may be disposed on the sub-plate 110 with a plurality of connected members, and may move in the first direction DR1 and in a direction opposite to the first direction DR1.

[0056] The first auxiliary pressure block 151 may include a coil spring. Therefore, when the tab of the battery cell is squeezed, the first auxiliary pressure block 151 may be compressed. The circuit board may be placed in the second auxiliary pressure block 152. At this time, the second auxiliary pressure block 152 may be pressed with the Figure 2 and Figure 3 Therefore, the pressurizing block 150 can be electrically connected to the tabs of the battery cell via the second sub-pressurizing block 152. However, although this is exemplary, it is also possible that the circuit board is placed in the first sub-pressurizing block 151 and the second sub-pressurizing block 152 includes a spring.

[0057] Although the sub-board 110 has been described with reference to Figures 4a to 4c , but it can also be applied to the main board 100.

[0058] Figure 5 is a diagram showing a single cell pressurizing and charging / discharging system according to one embodiment of the present invention.

[0059] Reference Figure 1 and Figure 5 , the pressurizing tray 1 introduced into the charging / discharging device 3 by the conveying device 2 may be electrically connected to the charging / discharging device 3 .

[0060] The charging / discharging device 3 may include an external terminal tab 180 disposed inside, and the external terminal tab 180 may have the form of a clamp. Therefore, the external terminal tab 180 may be defined as a terminal tab clamp. The external terminal tab 180 may contact the internal terminal tab 160 by clamping the internal terminal tab 160, and may be electrically connected to the internal terminal tab 160. Alternatively, the external terminal tab 180 and the internal terminal tab 160 may include a conductive material inside and may be electrically connected by contacting each other. Alternatively, the external terminal tab 180 and the internal terminal tab 160 may each include a circuit board at one end thereof, and may be electrically connected to each other by contacting the corresponding ends. In this way, the charging / discharging device 3 may provide current to the internal terminal tab 160 through the external terminal tab 180. The current may be delivered to the battery cell 30 and used to charge and discharge the battery cell 30.

[0061] The wiring 170 provided in the form of a spring can be extended. Therefore, the inner terminal sheet 160 can be connected to the pressure block 150 through the wiring 170, which is fixed in position within the inner frame 10. When the main board 100 and the sub-board 110 move in the second direction DR1, the position of the inner terminal sheet 160 may not change, and only the length of the wiring 170 may increase or decrease. The outer terminal sheet 180 may be fixedly placed in the outer frame 20 at a position corresponding to the inner terminal sheet 160. That is, the positions of the inner terminal sheet 160 and the outer terminal sheet 180 are both fixed.

[0062] In addition, the change in length of the battery cell 30 in the first direction DR1 does not require replacement of the inner frame 10, because the pressurizing block 150 can be moved in the first direction DR1 on the main board 100 and the sub-board 110 to clamp the tabs of the battery cell 30. Therefore, the battery cell pressurizing and charging / discharging system 1000 according to one embodiment can use the same inner frame 10, outer frame 20, and charging / discharging device 3 regardless of the size of the battery cell 30. Therefore, compared with a conventional pressurizing and charging / discharging system that requires replacement of the frame whenever the size of the battery cell 30 changes, the battery cell pressurizing and charging / discharging system 1000 according to one embodiment can save time and money.

[0063] Figure 6 is a diagram showing a pressurizing tray according to one embodiment of the present invention. Figure 6 Can be used with Figure 1 The configurations are substantially the same except that the length of the battery cell 30 in the first direction DR1 is reduced. Therefore, description of the overlapping configurations will be omitted.

[0064] refer to Figure 1 and Figure 6When the length of the battery cell 30 changes, the pressurizing block 150 may move on the main board 100 and the sub-board 110 to conform to the length of the battery cell 30. After traveling, the pressurizing block 150 may clamp the tab of the battery cell 30. The pressurizing block 150 may be electrically connected to the battery cell 30 by clamping the tab of the battery cell 30. A circuit board may be placed at a portion where each pressurizing block 150 clamps the tab of the battery cell 30. The circuit board may be a printed circuit board.

[0065] Figure 7 is a diagram showing a pressurizing tray according to one embodiment of the present invention. Figure 7 Can be used with Figure 1 Basically the same, except that the battery cell 30 has been changed to a one-way tab battery cell. Therefore, description of the duplicate configuration will be omitted.

[0066] refer to Figure 1 and Figure 7 , the battery cell 30 may be a unidirectional tab battery cell rather than a bidirectional tab battery cell. A unidirectional tab battery cell may be defined as a battery cell in which a tab is located only on one side of the battery cell. In this case, the battery cell 30 may have a tab located only on one end. The pressurizing blocks 150 movable on the main board 100 may each contact a different battery cell 30.

[0067] For example, the pressurizing block 150 positioned at the end of the first direction DR1 of one sub-plate 110 contacts the battery cell 30 positioned in the first direction DR1 of the battery cell 30 positioned adjacent to the sub-plate 110, and the pressurizing block 150 positioned in the direction opposite to the first direction DR1 may contact the battery cell 30 positioned in the direction opposite to the first direction DR1 among the battery cells 30 positioned adjacent to the sub-plate 110. In this case, the structure of the pressurizing block 150 may be slightly different from the above structure because the one-way tab battery cell may have two tabs only on one side. This will refer to Figures 8a to 8c Give a description.

[0068] Figures 8a to 8c It is shown that the Figure 7 FIG. 1 is a diagram of an embodiment of a pressurizing block in a pressurizing tray. In addition to adding an insulating member 155, Figures 8a to 8c Can be used with Figures 4a to 4c Therefore, the description of the overlapping configuration will be omitted.

[0069] Reference Figures 8a to 8c, the insulating member 155 may be disposed between the first auxiliary pressure block 151 and the second auxiliary pressure block 152. The insulating member 155 may also be disposed only in one of the first auxiliary pressure block 151 and the second auxiliary pressure block 152. For example, if the circuit board is disposed in the first auxiliary pressure block 151, the insulating member 155 may be disposed only on the side of the first auxiliary pressure block 151. On the contrary, if the circuit board is disposed in the second auxiliary pressure block 152, the insulating member 155 may be disposed only on the side of the second auxiliary pressure block 152.

[0070] The insulating member 155 may be used to insulate the circuit board placed at the top and bottom of the auxiliary pressure block where the circuit board is placed. Therefore, the upper portion of the auxiliary pressure block where the circuit board is placed may contact the tab of one of the two tabs of the battery cell, and the lower portion of the auxiliary pressure block may contact the tab of the other of the two tabs of the battery cell.

[0071] In this case, it is possible to provide Figure 7 The plurality of wirings 170 are shown and connected to the top and bottom of the auxiliary pressure block respectively.

[0072] Although the present invention has been described in detail above with respect to the preferred embodiments of the present invention, the scope of the present invention is not limited thereto and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also within the scope of the present invention.

[0073] [Explanation of symbols]

[0074] 1: Pressurized pallet

[0075] 2: Conveying device

[0076] 3: Charging / discharging device

[0077] 10: Inner frame

[0078] 20: Outer frame

[0079] 30: Battery Cell

[0080] 100: Motherboard

[0081] 110: Vice board

[0082] 120: Pressure shaft

[0083] 130: Pressure regulating component

[0084] 140: Load sensor

[0085] 150: Pressure block

[0086] 160: Internal lug

[0087] 170: Wiring

[0088] 180: External terminal lug

[0089] 151: The first auxiliary pressure block

[0090] 152: Second pressure block

[0091] 153: Connecting components

[0092] 155: Insulation components

Claims

1. A battery cell pressurization and charging / discharging system, comprising: an inner frame into which the battery cells are loaded; a plate for pressurizing the battery cell; a pressurizing block, the pressurizing block being movable on the plate in a direction in which the plate extends and clamping the battery cell; as well as An outer frame is placed outside the inner frame and has inner wiring pieces electrically connected to the pressurizing block through wiring.

2. The battery cell pressurization and charging / discharging system according to claim 1, wherein: The pressurizing block includes a circuit board disposed in a portion contacting the battery cell. 3 . The battery cell pressurizing and charging / discharging system of claim 1 , further comprising a load sensor disposed within the inner frame and capable of measuring pressure applied to the battery cell. 4 . The battery cell pressurizing and charging / discharging system according to claim 1 , further comprising a pressurizing shaft for pressurizing the plate, wherein the pressurizing shaft pressurizes the plate by rotating.

5. The battery cell pressurization and charging / discharging system according to claim 4, wherein: The rotation is a screw rotation.

6. The battery cell pressurization and charging / discharging system according to claim 1, wherein: The pressurizing block clamps the terminal tabs of the battery cell.

7. The battery cell pressurization and charging / discharging system according to claim 6, wherein: The battery cell is a bidirectional tab battery cell having tabs provided at both ends.

8. The battery cell pressurization and charging / discharging system according to claim 6, wherein: The battery cell is a one-way tab battery cell having a tab provided at only one end.

9. The battery cell pressurization and charging / discharging system according to claim 6, wherein: Two or more pressurizing blocks are placed on one of the plates.

10. The battery cell pressurization and charging / discharging system of claim 1, further comprising: A conveying device, the conveying device is used to convey the outer frame; as well as a charging / discharging device in which the transported outer frame is placed, wherein the charging / discharging device has an external terminal block electrically connected to the internal terminal block, and Wherein, the current applied by the charging / discharging device is delivered to the battery cell via the external tabs, the internal tabs, and the pressurizing block.

11. The battery cell pressurization and charging / discharging system according to claim 1, wherein: The external terminal piece is a terminal piece holder that clamps and electrically connects the internal terminal piece.

12. The battery cell pressurization and charging / discharging system according to claim 1, wherein: The wiring connects the inner terminal piece to the pressurizing block in the form of a spring.

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