KR20230139143A - Battery cell pressing module and charge/discharge apparatus for secondary battery having the same - Google Patents

Abstract

One embodiment of the present invention includes a plurality of movement guide parts provided on both sides of a pressurizing plate that pressurizes a battery cell and having movement guide holes through which a plate movement axis is inserted; and a link unit connecting the movement guide units disposed adjacently along the longitudinal direction of the plate movement axis, and adjusting a separation distance between the movement guide units, wherein both ends of the link unit are outer surfaces of the movement guide units disposed adjacently. Provides cell pressurizing modules that are each supported on link fixing members coupled to .

Description

Cell pressurizing module and secondary battery charging/discharging device having the same {BATTERY CELL PRESSING MODULE AND CHARGE/DISCHARGE APPARATUS FOR SECONDARY BATTERY HAVING THE SAME}

The present invention relates to a cell pressurizing module and a secondary battery charging and discharging device having the same, and more specifically, to a cell pressurizing module and a secondary battery charging and discharging device having the same, which are configured to easily attach and detach a link portion connecting adjacent moving guide units. It's about.

Secondary batteries are widely used as power for driving electric vehicles, including mobile devices such as mobile phones, laptops, and camcorders. In particular, the use of lithium secondary batteries is rapidly increasing due to the advantages of high operating voltage and high energy density per unit weight.

Generally, in order to produce and ship secondary batteries such as lithium-ion batteries and lithium polymer batteries, various processes such as aging process, charge/discharge process, OCV (Open Circuit Voltage) inspection, IR (internal resistance) inspection, and grading are required. It goes through several processes, and among them, the charging and discharging process is a very important process that determines the quality of the produced secondary battery.

This secondary battery charging and discharging process is performed in a secondary battery charging and discharging device.

Such a secondary battery charging and discharging device is provided with a plurality of pressure plates, and when each battery cell for charging and discharging is inserted between the plurality of pressure plates, the pressure plate pressurizes the corresponding battery cell to a predetermined pressure.

In this way, while the battery cell is pressed by the pressurizing plate, the electrode lead gripper module applies current to the electrode lead provided in the battery cell to perform the charging and discharging process of the battery cell. This secondary battery charging and discharging device performs charging and discharging of battery cells within the required temperature and pressure range to increase the activation of the battery cells.

Here, movement guide holes are formed on both ends of the pressurizing plate that pressurizes the battery cell. A plate movement axis connecting the first support frame and the second support frame spaced apart at a predetermined interval is inserted through this movement guide hole. Accordingly, in the process of the first pressing unit and the second pressing unit pressing the pressing plate, the pressing plate may be moved along the longitudinal direction of the plate moving axis.

Here, the battery cells disposed between the plurality of pressurizing plates may be automatically inserted, for example, by a battery pickup device. At this time, automatic insertion of battery cells is performed with a plurality of pressure plates spaced apart at predetermined intervals. To this end, chain members connecting neighboring pressure plates are coupled to both ends of the pressure plate, so that the plurality of pressure plates can be spaced apart at predetermined intervals. This chain member can be fixed to the side end of the pressure plate with a pin.

However, when connecting neighboring pressure plates using a chain member as in the related art, there is a problem in that the gap between the pressure plates cannot be accurately adjusted.

In addition, the chain member coupled to the pressure plate by pin coupling is difficult to separate and combine, so there is a problem that maintenance work on the secondary battery charging and discharging device takes a long time.

Therefore, there is a need for various research and development on cell pressurizing modules that adjust the spacing of the pressurizing plates at predetermined intervals and are equipped with a link part that allows easy separation and assembly.

Prior Document 1: Korean Patent Publication No. 10-2012-0038218 (2012.04.23)

The technical problem of the present invention to solve the above problems is to provide a cell pressurizing module configured to easily attach and detach a link portion connecting adjacent moving guide portions, and a secondary battery charging and discharging device having the same.

In order to achieve the above technical problem, an embodiment of the present invention includes a plurality of movement guide parts provided on both sides of a pressurizing plate for pressurizing a battery cell and having movement guide holes through which a plate movement axis is inserted; and a link unit connecting the movement guide units disposed adjacently along the longitudinal direction of the plate movement axis, and adjusting a separation distance between the movement guide units, wherein both ends of the link unit are outer surfaces of the movement guide units disposed adjacently. Provides cell pressurizing modules that are each supported on link fixing members coupled to .

In one embodiment of the present invention, the link part has a link body forming an external shape, a first hole is formed at one end of the link body, and a second hole is formed at the other end of the link body, and the link body The first hole formed in the portion may be formed as a long hole in the longitudinal direction of the link body portion, and the second hole may be formed as an opening open to the outside.

In one embodiment of the present invention, the width of the opening portion is made to correspond to the outer diameter of the fastening portion of the link fixing member, and a fixing elastic member may be provided on the inner surface of the second hole.

In one embodiment of the present invention, the link body portion is provided with an opening/closing control unit that selectively opens the first hole, and the opening/closing control unit may be rotated from the link body unit about a hinge axis.

In one embodiment of the present invention, the link part includes a first friction reduction member through which the fastening part of the link fixing member is inserted and provided between the movement guide part and the link body part; And the fastening portion of the link fixing member is inserted through and may include a second friction reduction member provided between the link body portion and the head portion of the link fixing member.

In one embodiment of the present invention, the first friction reduction member and the second friction reduction member may be made of a resin material.

One embodiment of the present invention provides a secondary battery charging and discharging device equipped with the cell pressurization module.

The effects of the cell pressurizing module according to the present invention described above and the secondary battery charging and discharging device having the same are explained as follows.

According to the present invention, an open portion is formed in the link portion connecting adjacent moving guide portions, so that the link portion can be easily separated and combined.

Accordingly, the link unit can disconnect or reconnect between adjacent movement guide units without separating the link fixing member coupled to the movement guide unit.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view of a secondary battery charging and discharging device according to an embodiment of the present invention.
Figure 2 is an exemplary plan view of a secondary battery charging and discharging device according to an embodiment of the present invention.
Figure 3 is an exemplary view of a secondary battery charging and discharging device according to an embodiment of the present invention as seen from the front.
Figure 4 is a perspective view showing a cell pressurizing module and an electrode lead gripper module according to an embodiment of the present invention.
Figure 5 is an exploded perspective view of a cell pressurization module according to an embodiment of the present invention.
Figure 6 is an exemplary diagram showing a state in which a link part is coupled to a link fixing member according to an embodiment of the present invention.
Figure 7 is an exemplary diagram showing a state in which the link portion is separated from the link fixing member according to an embodiment of the present invention.
Figure 8 is a perspective view of a link portion according to an embodiment of the present invention.
Figure 9 is a perspective view of a link portion according to another embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention may be implemented in various different forms and, therefore, is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to be “connected” to another part, this includes not only cases where it is “directly connected,” but also cases where it is “indirectly connected” with another member in between. . Additionally, when a part is said to “include” a certain component, this does not mean that other components are excluded, but that other components can be added, unless specifically stated to the contrary.

In the present invention, the upper and lower parts mean located above or below the target member, and do not necessarily mean located above or below based on the direction of gravity.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view of a secondary battery charging and discharging device according to an embodiment of the present invention, Figure 2 is an illustrative plan view of a secondary battery charging and discharging device according to an embodiment of the present invention, and Figure 3 is a plan view of a secondary battery charging and discharging device according to an embodiment of the present invention. It is an exemplary view of a secondary battery charging and discharging device according to an embodiment as seen from the front, Figure 4 is a perspective view showing a cell pressurizing module and an electrode lead gripper module according to an embodiment of the present invention, and Figure 5 is an embodiment of the present invention. This is an exploded perspective view of the cell pressurization module according to an example.

As shown in FIGS. 1 to 5 , the secondary battery charging and discharging device 1000 may include a support housing module 100, a cell pressurizing module 200, and an electrode lead gripper module 300.

Here, the support housing module 100 forms the overall appearance of the secondary battery charging and discharging device 1000 and is configured to support various components provided in the secondary battery charging and discharging device 1000.

Such a support housing module 100 includes a first support frame 110, a second support frame 120, a first pressure driver 130, a first pressure driver 140, a second pressure driver 150, and a first pressure driver 150. 2 The pressurizing part 160, the support shaft 171, the first moving screw 172, the second moving screw 173, the screw support bracket 174, the plate moving axis 175, and the gripper moving axis 176. It can be included.

Here, the first support frame 110 and the second support frame 120 form a pair, and the first support frame 110 and the second support frame 120 are spaced apart from each other at a predetermined distance. The first support frame 110 and the second support frame 120 may be supported and fixed by the support shaft 171.

In this way, between the spaced apart first support frame 110 and the second support frame 120, there are a plurality of pressing plates 210 that pressurize the pouch-type battery cell 10, and the pouch-type battery cell 10 A plurality of electrode lead gripper modules 300 that activate battery cells through charging and discharging may be disposed.

And the first pressure driving unit 130 is supported and fixed to the first support frame 110. This first pressure driving unit 130 may be a power source such as a motor.

This first pressurizing driver 130 controls the movement of the first pressurizing unit 140 that pressurizes the cell pressurizing module 200. Here, the power generated from the first pressure driving unit 130 is transmitted to the first moving screw 172 through a plurality of gears (not shown), so that the first moving screw 172 can be rotated.

And the first pressing part 140 is coupled to the first moving screw 172 in the form of a TM screw, so that the first pressing part 140 moves the first moving screw 172 when the first moving screw 172 rotates. It can be moved in the longitudinal direction. For example, when the first pressure driver 130 rotates forward, the first pressure driver 140 is moved in the direction of the second support frame 120, and when the first pressure driver 130 rotates reversely. , the first pressing unit 140 may be moved in a direction away from the second support frame 120. That is, the moving direction of the first pressing unit 140 may vary depending on the rotation direction (forward or reverse rotation) of the first pressing driving unit 130.

The first moving screw 172, which guides the moving direction of the first pressing part 140, is rotatable with one end supported by the first support frame 110 and the other end supported by the screw support bracket 174. It is done so that

Meanwhile, the second pressure driving unit 150 is supported and fixed to the second support frame 120. This second pressure driving unit 150 may be a power source such as a motor.

This second pressurizing driver 150 controls the movement of the second pressurizing unit 160 that pressurizes the cell pressurizing module 200. Here, the power generated from the second pressure driving unit 150 may be transmitted to the second moving screw 173 through a plurality of gears (not shown).

And the second pressing part 160 is coupled to the second moving screw 173 in the form of a ball screw, so that the second pressing part 160 moves the second moving screw 173 when the second moving screw 173 rotates. It can be moved in the longitudinal direction. For example, when the second pressure driver 150 rotates forward, the second pressure driver 160 is moved in the direction of the first support frame 110, and when the second pressure driver 150 rotates reversely. , the second pressing unit 160 may be moved in a direction away from the first support frame 110. That is, the moving direction of the second pressing unit 160 may vary depending on the rotation direction (forward rotation or reverse rotation) of the second pressing driving unit 150.

The second moving screw 173, which guides the moving direction of the second pressing part 160, is rotatable with one end supported by the second support frame 120 and the other end supported by the screw support bracket 174. It is done so that

Meanwhile, a plurality of battery cells 10 for activation work picked up from a battery pickup device (not shown) may each be inserted into the battery insertion space 201 provided between adjacent pressure plates 210. At this time, the pressure plates 210 disposed adjacent to each other are connected by a slip 260, and the battery cell 10 inserted into the battery insertion space 201 can be seated on the slip 260.

In this way, with the battery cell 10 seated on the slip 260, the first moving screw 172 and the first pressing part 140 coupled in the form of a TM screw move at a high speed to a predetermined reference position. do.

And with the first pressing part 140 moved to a predetermined reference position, the second pressing part 160 coupled to the second moving screw 173 in the form of a ball screw applies the required pressing force to the battery cell 10. The movement of the pressurizing plate 210 is precisely controlled so that it can be pressurized. In this way, the secondary battery charging and discharging device 1000 shortens the movement time of the pressing plate 210 through selective movement of the first pressing unit 140 and the second pressing unit 160, and at the same time, the battery cell ( 10) The pressing force applied to the device can be precisely controlled.

In other words, the first pressing part 140 is coupled with the first moving screw 172 in the form of a TM screw, and the second pressing part 160 is coupled with the second moving screw 173 in the form of a ball screw, thereby The movement time of the pressure plate 210 that pressurizes the cell 10 is shortened, and the pressure adjustment of the battery cell 10 can be controlled more precisely. That is, the first pressing part 140 and the second pressing part 160 are coupled to the moving screw in different shapes, so that the first pressing part 140 is first moved quickly to the required reference position and then pressed. 2 The pressurizing unit 160 can pressurize the battery cell 10 more precisely.

Meanwhile, a plurality of cell pressurizing modules 200 may be provided between the first support frame 110 and the second support frame 120.

Such a cell pressurizing module 200 may include a pressurizing plate 210, a movement guide unit 220, a heating pad 230, a protection pad 240, a pocket guide 250, and a slip sheet 260.

Here, the pressing plate 210 is configured to pressurize the battery cell 10 seated on the slip sheet 260.

And the movement guide unit 220 is provided on both sides of the pressure plate 210. This movement guide unit 220 is configured to be movable along the longitudinal direction of the plate movement axis 175 connected to the first support frame 110 and the second support frame 120. That is, a movement guide hole 221 through which the plate movement axis 175 is inserted is formed in the movement guide unit 220, and the movement guide unit 220 is connected to the first pressing unit 140 and the second pressing unit 160. ) can be moved along the longitudinal direction of the plate movement axis 175.

Here, the pressure plate 210 is made to be detachable from the movement guide part 220. Therefore, when maintenance of the pressure plate 210 is required, the operator can easily separate the pressure plate 210 from the movement guide unit 220.

For reference, the conventional cell pressurizing module does not have a moving guide unit that is detachable from the pressing plate, and moving guide holes through which the plate moving axis 175 is inserted are formed on both sides of the conventional pressing plate. However, in such a conventional pressure plate, when the pressure plate is replaced, the pressure plate must be replaced while all pressure plates placed before the pressure plate requiring replacement are separated from the plate moving axis 175. Well, there are difficulties in replacement work. On the other hand, since the pressure plate 210 of the present invention is detachable from the movement guide unit 220, replacement of the pressure plate 210 can be easily performed.

And the heating pad 230 is configured to heat the pressure plate 210 to a predetermined temperature. This pressure plate 210 is heated to a predetermined temperature by the heating pad 230 and pressurizes the battery cell 10 at a predetermined pressure.

Additionally, the protection pad 240 is formed to prevent damage to the surface of the battery cell 10 caused by the pressure plate 210 during the process of the pressure plate 210 pressing the battery cell 10.

And the pocket guide 250 fixes the slip sheet 260 and the protection pad 240 to the pressure plate 210, and at the same time allows the plurality of battery cells 10 picked up from the battery pickup device into the battery insertion space 201. It is designed to guide the insertion direction of the battery cell 10 so that it can be inserted stably.

Meanwhile, the electrode lead gripper module 300 is configured to be movable in the width direction of the cell pressing module 200 while being inserted into the cell pressing module 200 . For example, the electrode lead gripper module 300 is selectively moved in the width direction of the cell pressurizing module 200 according to the size of the battery cell 10, and is pressed into contact with the electrode lead 11 provided in the battery cell 10. It comes true.

These electrode lead gripper modules 300 form a pair and may be provided on both sides of the cell pressurizing module 200, respectively.

The electrode lead gripper module 300 detects whether the battery cell 10 is being charged or discharged and is defective while pressure-welded to the electrode lead 11 to make an electrical connection.

In this way, the secondary battery charging and discharging device 1000 performs charging and discharging of the battery cell 10 while the pressure plate 210 pressurizes the battery cell 10, causing expansion or gas generation of the battery cell 10. This prevents swelling, which causes the battery cell 10 to swell, and accurately determines whether the battery cell 10 is defective.

Figure 6 is an exemplary diagram showing a state in which the link part is coupled to a link fixing member according to an embodiment of the present invention, and Figure 7 is an exemplary diagram showing a state in which the link part is separated from the link fixing member according to an embodiment of the present invention. 8 is a perspective view of the link portion according to an embodiment of the present invention.

As shown in FIGS. 6 to 8 , the cell pressurizing module 200 may include a link unit 270.

This link portion 270 is configured to adjust the gap between the pressure plates 210 to a predetermined gap when the battery cell 10 is inserted into the battery insertion space 201.

This link unit 270 connects the movement guide units 220 disposed adjacent to each other along the longitudinal direction of the plate movement axis 175, ultimately controlling the spacing of the pressure plates 210. That is, the spacing of the pressure plate 210 can be controlled by adjusting the spacing of the movement guide unit 220.

This link portion 270 is made up of a link body portion 271 that forms the outer shape. Here, the first hole 272 is formed within the link body 271 and at one end of the link body 271. And the second hole 273 is formed at the other end of the link body portion 271.

In this way, the link body portion 271 in which the first hole 272 and the second hole 273 are formed connects the movement guide portion 220 disposed adjacently. This link portion 270 may be supported by the link fixing member 280.

Here, the link fixing member 280 is coupled to the end of the fastening part 281 and the fastening part 281, for example, which is screwed to the fastening hole 222 formed in the movement guide part 220, and the link part 270 It may be made of a fastening bolt having a head 282 designed to prevent separation. At this time, the outer diameter of the head 282 is formed to be larger than the first hole 272 and the second hole 273, so that the link portion 270 is supported on the link fixing member 280 and deviates to the outside. This can be prevented.

For example, in this link unit 270, the first hole 272 is supported on the link fixing member 280 coupled to one movement guide unit 220, and the second hole 273 is the first hole 273. The hole 272 may be supported and fixed to a link fixing member 280 coupled to another moving guide part 220 disposed adjacent to the coupled moving guide part 220. In this way, the link unit 270 is configured to connect the movement guide units 220 arranged adjacently.

Here, the first hole 272 is formed as a long hole in the longitudinal direction of the link body portion 271, and in the process of pressing the plurality of pressure plates 210, the link fixing member 280 extends the length of the first hole 272. Can be moved in any direction.

And when the first pressurizing part 140 and the second pressurizing part 160 are spread outward and the plurality of pressurizing plates 210 are spaced apart at a predetermined interval for activating the new battery cell 10, the link Unit 270 controls the separation distance between the pressure plates 210. That is, the link fixing member 280 is moved along the longitudinal direction of the first hole 272 in which the long hole is formed, and the plurality of pressure plates 210 can be evenly spaced apart at a predetermined distance.

And an opening 274 may be formed in the second hole 273. This second hole 273 is not completely closed, but has an opening 274 that opens to the outside. This second hole 273 may be made of a hook-shaped fastening ring.

In this way, the link portion 270 in which the opening portion 274 is formed allows the link portion 270 to be attached to the link fixing member 280 even when the link fixing member 280 is coupled to the outer surface of the movement guide portion 220. It can be concluded. That is, the worker may fasten the second hole 273 to the fastening portion 281 of the link fixing member 280 previously coupled to the fastening hole 222 through the opening 274 formed in the second hole 273. You can. The width of the opening portion 274 may be made to correspond to the outer diameter of the fastening portion 281.

And when the link part 270 needs to be separated, the worker can easily separate the second hole 273 coupled to the fastening part 281 through the opening part 274 formed in the second hole 273. That is, the worker can easily separate the link part 270 from the link fixing member 280 even without directly separating the link fixing member 280 coupled to the movement guide part 220 to separate the link part 270. can do.

Therefore, when maintenance work such as overall cleaning of the secondary battery charging and discharging device 1000 is performed, the link portion 270 can be easily separated and combined.

And the link portion 270 may include a first friction reduction member 275 and a second friction reduction member 276. The first friction reduction member 275 and the second friction reduction member 276 have corresponding configurations.

The first friction reduction member 275 and the second friction reduction member 276 are used to reduce friction between the link unit 270 and the moving guide unit 220 and the link unit 270 during the process of moving the pressure plate 210. It is made to reduce the occurrence of friction between and the link fixing member 280. These friction members are made to prevent the link fixing member 280 or the moving guide portion 220 from being worn due to friction between each component and from generating fine iron dust.

In this way, fine iron dust generated due to friction between each component can cause many problems in the activation process of the battery cell 10.

Accordingly, the first friction reduction member 275 and the second friction reduction member 276 are configured to prevent the movement guide part 220 or the link fixing member 280 from being worn and fine iron dust from being generated.

The first friction reduction member 275 and the second friction reduction member 276 are preferably made of, for example, a resin material. And the link portion 270 may also be made of a resin material.

Here, the first friction reduction member 275 is inserted through the link fixing member 280 and is provided between the movement guide part 220 and the link part 270. And the second friction reducing member 276 is inserted through the link fixing member 280 and is provided between the link portion 270 and the head portion 282 of the link fixing member 280.

The first friction reduction member 275 and the second friction reduction member 276 may be made of a resin material that does not have a high frictional force with each component in contact.

In this way, the first friction reduction member 275 is provided between the movement guide part 220 and the link part 270, and the second friction reduction member 276 is provided between the link part 270 and the link fixing member 280. ) is provided, it is possible to prevent fine iron dust from being generated due to wear of the movement guide part 220 or the link fixing member 280.

And, since an open portion 274 is formed in the link portion 270, when separating the movement guide portion 220 connected through the link portion 270, the worker moves the movement guide portion 220 through the opening portion 274. The connection can be easily disconnected. That is, the link unit 270 according to the present invention releases the connection of the link unit 270 even without directly separating the link fixing member 280 from the movement guide unit 220 as the opening portion 274 is formed. can do. Here, if the link portion 270 can be disconnected only by directly separating the link fixing member 280 screwed to the fastening hole 222, fine iron powder may be removed during the separation of the link fixing member 280. It may happen.

Figure 9 is a perspective view of a link portion according to another embodiment of the present invention.

As shown in FIG. 9, the link portion 270' may include a fixed elastic member 277. This fixed elastic member 277 is provided on the inner surface of the second hole 273.

This fixed elastic member 277 may be made of, for example, a rubber material. This fixing elastic member 277 is made to increase adhesion to the fastening part 281 when the second hole 273 is inserted and coupled to the fastening part 281. Accordingly, the second hole 273 is prevented from shaking when inserted into the fastening part 281 and can be stably supported and fixed to the fastening part 281.

And the link unit 270' may include an opening/closing control unit 278. This opening/closing control unit 278 is configured to selectively open the first hole 272.

For example, the opening/closing control unit 278 is rotatable based on the hinge axis 279 provided in the link body 271 forming the first hole 272. Therefore, when the link part 270' needs to be replaced due to damage, etc., the link part 270' is replaced without separating the link fixing member 280 from the movement guide part 220. replacement is possible.

For example, when the worker separates the link part 270' from the movement guide part 220, the worker first separates the second hole 273 from the fastening part 281 and then opens and closes the control part 278. The first hole 272 can be separated from the fastening portion 281 while being rotated from the link fixing member 280. This link part 270' can completely separate the link part 270' from the link fixing member 280 without separating the link fixing member 280 from the movement guide part 220.

However, this is only a preferred embodiment of the present invention, and the scope of the present invention is not limited by the scope of description of this embodiment.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the patent claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

10: battery cell
11: Electrode lead
100: Support housing module
110: first support frame
120: second support frame
130: first pressure driving unit
140: First pressurizing part
150: second pressure driving unit
160: Second pressurizing part
171: support shaft
172: first moving screw
173: second moving screw
174: Screw support bracket
175: Plate moving axis
176: Gripper movement axis
200: Cell pressurization module
201: Battery insertion space
210: Pressure plate
220: Moving guide unit
221: Mobile guide hall
222: fastening hole
230: Heating pad
240: protection pad
250: Pocket Guide
260: Kanji
270, 270': link part
271: Link body portion
272: Hole 1
273: 2nd hole
274: opening
275: First friction reduction member
276: Second friction reduction member
277: Fixed elastic member
278: Open/close control unit
279: Hinge axis
280: Link fixing member
281: fastening part
282: header
300: Electrode lead gripper module
1000: Secondary battery charging and discharging device

Claims (7)

A plurality of movement guide parts provided on both sides of the pressurizing plate that pressurizes the battery cell and having movement guide holes through which the plate movement axis is inserted; and
A link unit connects the movement guide units disposed adjacently along the longitudinal direction of the plate movement axis and adjusts the separation distance between the movement guide units,
A cell pressurizing module in which both ends of the link unit are respectively supported by link fixing members coupled to the outer surface of the movement guide unit disposed adjacent to each other.
According to paragraph 1,
The link portion has a link body forming an external shape,
A first hole is formed at one end of the link body, and a second hole is formed at the other end of the link body,
The first hole formed in the link body is formed as a long hole in the longitudinal direction of the link body,
The cell pressurizing module, wherein the second hole is formed with an opening open to the outside.
According to paragraph 2,
The width of the opening portion is made to correspond to the outer diameter of the fastening portion of the link fixing member,
A cell pressurizing module, characterized in that a fixing elastic member is provided on the inner surface of the second hole.
According to paragraph 2,
The link body portion is provided with an opening/closing control unit that selectively opens the first hole,
The cell pressurizing module, wherein the opening/closing control unit is configured to rotate from the link body unit based on a hinge axis.
According to paragraph 2,
The link part is,
a first friction reduction member through which the fastening part of the link fixing member is inserted and provided between the movement guide part and the link body part; and
A cell pressurizing module, wherein the fastening portion of the link fixing member is inserted through and includes a second friction reducing member provided between the link body portion and the head portion of the link fixing member.
According to clause 5,
A cell pressurizing module, wherein the first friction reduction member and the second friction reduction member are made of a resin material.
A secondary battery charging and discharging device equipped with the cell pressurizing module according to any one of claims 1 to 6.

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