JP6481562B2 - Battery cell storage device - Google Patents

Description

  The present invention relates to a battery cell storage device.

  A technique for storing a plurality of flat battery cells together in a rack is known (see, for example, Patent Document 1). Such a rack can be used for various processes and transportation.

  In the invention described in Patent Document 1, a plurality of middle plates (partition walls) are arranged in the rack, and each battery cell is accommodated between the middle plate and the middle plate. The middle plates are movable in the arrangement direction, and the interval between the middle plates can be adjusted. For example, by pressing the middle plate at one end toward the middle plate at the other end, it is possible to pressurize the battery cell by narrowing the interval between the middle plates.

  Depending on the process, it is necessary to change the rack to be used. In this case, when the process is completed, the battery cell that has undergone the process is taken out of the rack, and another battery cell is inserted into the rack.

JP 2012-3959 A

  However, in the rack described in Patent Document 1, for example, when a battery cell is inserted into the rack, static electricity is generated due to friction between the battery cell and the middle plate, and the battery cell adheres to the middle plate. There is a risk of it. In this case, the battery cell cannot be easily taken out after the process is completed, and there is a possibility that a problem such as a takeout defect may occur.

  This invention is made | formed in view of the said situation, and it aims at providing the battery cell storage apparatus which can suppress sticking to the center board of a battery cell.

  The battery cell storage device includes a plurality of plate-shaped middle plates, an insertion portion, and a discharge portion. The plurality of intermediate plates are arranged so that flat battery cells can be accommodated therebetween. The insertion portion is inserted between adjacent intermediate plates from a direction intersecting with the arrangement direction of the intermediate plates, thereby widening the interval between the adjacent intermediate plates. A discharge part is provided in an insertion part, and discharges the air for static elimination toward between adjacent intermediate | middle boards.

  A discharge portion is provided in the insertion portion inserted between the middle plates, and discharge air is discharged from the discharge portion to between adjacent middle plates. Thereby, the static electricity which generate | occur | produced by the friction between a battery cell and an intermediate plate can be removed, and sticking to the intermediate plate of a battery cell can be suppressed.

It is a perspective view which shows the external appearance of a battery cell. It is a perspective view which shows schematic structure of a battery cell storage apparatus. It is a top view which shows schematic structure of a battery cell storage apparatus. It is a figure which shows a mode that a battery cell is inserted in the battery cell storage apparatus seen from the arrow direction of FIG. It is a figure which shows a mode that a battery cell is pressurized in a battery cell storage apparatus. It is a figure which shows the intermediate | middle board positioning device which acts on a battery cell storage apparatus. It is a figure which shows a mode that the opener nail | claw of a middle plate positioning device is inserted between middle plates. It is a perspective view which shows the external appearance of an opener nail | claw. It is a perspective view which expands and shows the discharge part of an opener nail | claw. It is a top view which expands and shows the discharge part of an opener nail | claw. It is a figure which shows a mode that the air for static elimination is sprayed from a discharge part. It is a figure which shows a mode that the air for static elimination is sprayed in the middle of the intermediate board adjacent from a discharge part.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation, and may be different from the actual ratios.

  The present invention relates to a battery cell storage device that stores battery cells. Before describing the battery cell storage device, the configuration of the battery cell stored will be described.

(Battery cell)
FIG. 1 is a perspective view showing an appearance of a battery cell.

  As shown in FIG. 1, the battery cell 100 has a flat rectangular shape, and the positive electrode lead 110 and the negative electrode lead 120 are led out from the same end portion of the exterior material 130. The exterior material 130 is, for example, a resin-coated aluminum sheet surface.

  A power generation element (battery element) in which a charge / discharge reaction proceeds and an electrolytic solution are accommodated in the exterior material 130. The power generation element is formed by alternately stacking positive electrodes and negative electrodes with a sheet-like separator interposed therebetween. The positive electrode lead 110 and the negative electrode lead 120 are connected to the positive electrode and the negative electrode of the battery element, respectively.

  The battery cell 100 is manufactured by arranging a power generation element inside the exterior material 130, adding an electrolyte, and sealing the exterior material 130. The produced battery cell 100 is provided with various processes such as processing and testing. For example, a step of pressurizing the battery cell 100 is provided in order to sufficiently impregnate the separator of the power generation element with the electrolytic solution. Here, a pressurization process can be performed more efficiently by storing a plurality of battery cells in a battery cell storage device that is a rack and pressurizing them together. Hereinafter, the configuration of the battery cell storage device will be described using a battery cell storage device that pressurizes the battery cell as an example.

(Battery cell storage device)
FIG. 2 is a perspective view illustrating a schematic configuration of the battery cell storage device. FIG. 3 is a top view illustrating a schematic configuration of the battery cell storage device. FIG. 4 is a diagram illustrating a state in which the battery cell is inserted into the battery cell storage device as viewed from the direction of the arrow in FIG. 2. FIG. 5 is a diagram illustrating a state in which the battery cell is pressurized in the battery cell storage device.

  As shown in FIGS. 2 and 3, the battery cell storage device 200 includes a bottom plate 210, a side plate 220, a side plate 230, a through rod 240, a screw portion 250, a movable plate 260, and a plurality of middle plates 270.

  The bottom plate 210 is a plate member having a rectangular shape in plan view, and side plates 220 and 230 are installed on both sides of the bottom plate 210. The side plate 220 and the side plate 230 are substantially rectangular plate materials and are erected as side walls of the battery cell storage device 200. The battery cell storage device 200 is formed in a box shape in which three surfaces are surrounded by a plate material by a bottom plate 210, a side plate 220, and a side plate 230, and the remaining three surfaces are opened.

  The through-rods 240 are four bars, and connect the corresponding four corners of the side plate 220 and the side plate 230. The through-rod 240 forms four sides from the side plate 220 to the side plate 230 in the box shape of the battery cell storage device 200.

  The screw portion 250 has a screw formed on the surface thereof, and is inserted into a hole located at the center of the side plate 230. An inner screw is formed in the hole of the side plate 230 and is screwed into the screw portion 250. A rotation driving unit such as a servo motor (not shown) is connected to one end of the screw unit 250. When the servo motor rotates, the screw portion 250 advances and retracts in the axial direction while rotating around the axis. A movable plate 260 is attached to the other end of the screw portion 250. The movable plate 260 moves in a direction approaching or separating from the side plate 220 as the screw portion 250 advances and retreats. The movable plate 260 has through-rods 240 inserted into its four corners, and is attached to the screw portion 250 so that the movable plate 260 can move in parallel with the through-rod 240 without rotating even if the screw portion 250 rotates. Yes.

  The intermediate plate 270 is a plate-like member and is disposed between the side plate 220 and the movable plate 260. The middle plates 270 are arranged in parallel so that the flat battery cells 100 can be accommodated therebetween. The intermediate plate 270 has the through-rods 240 inserted in the four corners, and can move in parallel with the extending direction of the through-rods 240.

  As shown in FIG. 4, the battery cell 100 is stored in the battery cell storage device 200 by the transfer device 300. The transfer device 300 transfers the battery cell 100 to various processes for processing and processing, delivers the battery cell 100 to various devices such as the battery cell storage device 200, and receives the battery cell 100 from various devices. The transport apparatus 300 includes a main body part 310 and a grip part 320. The transfer device 300 moves above the battery cell storage device 200 while holding the end portion of the battery cell 100 by the grip portion 320, and descends so as to approach the battery cell storage device 200 from above. As a result, the battery cell 100 is inserted between the middle plates 270 of the battery cell storage device 200. When the transfer device 300 releases the grip by the grip portion 320, the battery cell 100 is stored in the battery cell storage device 200. When taking out the battery cell 100 from the battery cell storage device 200, the transport device 300 approaches the battery cell storage device 200 and grips the battery cell 100 by the grip portion 320. In this state, when the transfer device 300 is raised, the battery cell 100 is taken out from the battery cell storage device 200.

  As shown in FIG. 5, when the movable plate 260 is moved toward the side plate 220 in a state where the battery cell 100 is stored in the battery cell storage device 200, the plurality of middle plates 270 and the battery cells 100 disposed therebetween. Also moves toward the side plate 220. Thereby, the space | interval of intermediate | middle plates 270 becomes narrow, and each battery cell 100 is pinched | interposed between the intermediate plates 270, and is pressurized.

(Center plate positioning device)
Next, the middle plate positioning device 400 that constitutes a part of the battery cell storage device 200 and supplements the function of the battery cell storage device 200 will be described.

  As described above, by pressurizing the battery cell 100 for a certain time in the battery cell storage device 200, the electrolyte is sufficiently impregnated in the separator. The battery cell 100 for which the pressurizing process has been completed is taken out from the battery cell storage device 200 to be transported to the next step. However, the space between the middle plates 270 is narrow in the battery cell storage device 200 at the time when the pressurizing process is completed. Therefore, the battery cell 100 is in a state of being sandwiched between adjacent middle plates 270. Therefore, the intermediate plate 270 is positioned by widening the interval between the adjacent intermediate plates 270 by the intermediate plate positioning device 400 so that the battery cell 100 can be taken out. Hereinafter, the configuration of the intermediate plate positioning device will be described.

  FIG. 6 is a view showing an intermediate plate positioning device acting on the battery cell storage device. FIG. 7 is a diagram illustrating a state where the opener claw of the intermediate plate positioning device is inserted between the intermediate plates. 6 and 7, (a) is a plan view of the intermediate plate positioning device, and (b) is a front view of the intermediate plate positioning device. In FIG. 6 and FIG. 7, a part of the configuration of the through-rod 240, the screw portion 250, the movable plate 260 and the like of the battery cell storage device 200 is omitted for convenience of explanation.

  As shown in FIGS. 6A and 6B, the middle plate positioning device 400 is located on both sides of the battery cell storage device 200. The intermediate plate positioning device 400 includes an opener claw 410, a shaft 420, a fixed plate 430, a discharge unit 440, an ionizer 450, an air duct 460 and a flow path 470.

  The opener claw 410 is connected to one end of the shaft 420. The shaft 420 is a rod-like member having a screw formed on the surface thereof, and is inserted into a hole provided in the fixed plate 430. An inner screw is formed in the hole of the fixing plate 430 and is screwed with a screw provided on the shaft 420. The other end of the shaft 420 is connected to a rotation drive unit such as a servo motor (not shown). When the servo motor rotates, the shaft 420 advances and retracts in the axial direction while rotating around the axis. As the shaft 420 advances and retreats, the opener claw 410 moves in a direction approaching or separating from the middle plate 270 of the battery cell storage device 200.

  As shown in FIG. 6B, the opener claw 410 has a discharge part 440 at the end on the battery cell storage device 200 side. The discharge unit 440 is a mechanism that discharges static elimination air toward the battery cell storage device 200. The static elimination air is air that is sent from a blower such as a fan (not shown) and passes through the ionizer 450, and includes ions that are substances such as charged atoms. By discharging the air for discharging, static electricity existing at the sprayed portion can be removed. Since a general thing can be used as the ionizer 450, the detailed description about the structure of the ionizer 450 is abbreviate | omitted. The static elimination air is guided from the ionizer 450 to the flow path 470 through the air duct 460 that is a conduit, and is supplied to the discharge unit 440 through the flow path 470.

  As shown in FIGS. 7A and 7B, the opener claw 410 of the middle plate positioning device 400 approaches the middle plate 270 of the battery cell storage device 200, and the end of the opener claw 410 is connected to the middle plate 270. It is inserted between the adjacent intermediate plates 270 from the direction intersecting the arrangement direction. Here, the middle plate 270 is restricted by the through-rod 240 so as to move only in the arrangement direction. Therefore, when the end portions of the opener claws 410 are inserted between the adjacent intermediate plates 270, the intermediate plates 270 move in directions away from each other. As a result, the interval between adjacent intermediate plates 270 increases. In the example shown in FIG. 7, only a pair of opener claws 410 are inserted between the middle plates 270, but the other opener claws 410 are also sequentially inserted between the corresponding middle plates 270. Thereby, the space | interval of all the intermediate plates 270 can be expanded. Hereinafter, the configuration of the opener claw 410 will be described in detail.

(Opener nails)
FIG. 8 is a perspective view showing the appearance of the opener claw.

  As shown in FIG. 8, an insertion portion 411 having a tapered tip is provided at the end of the opener claw 410. The insertion portion 411 is a portion inserted between the middle plates 270, and is formed so that a cross-sectional area when cut in a direction intersecting the insertion direction becomes smaller as the insertion direction proceeds. The insertion part 411 is provided with a discharge part 440. Details of the discharge unit 440 will be described later.

  In the example of FIG. 8, two insertion portions 411 are provided in one opener claw 410. Each insertion portion 411 is provided side by side along the arrangement direction of the intermediate plates 270, and a recess is formed between the adjacent insertion portions 411. When the insertion portion 411 is inserted between the adjacent intermediate plates 270, the end portion of the intermediate plate 270 is fitted into the recess as shown in FIG. 7A, and the intermediate plate 270 is positioned.

(Discharge part)
FIG. 9 is an enlarged perspective view showing the discharge part of the opener claw. FIG. 10 is an enlarged plan view showing the discharge part of the opener claw.

  As illustrated in FIG. 9, the discharge unit 440 includes a central discharge port 440 a, an upper discharge port 440 b, and a lower discharge port 440 c in the vicinity of the distal end of the insertion unit 411. The central discharge port 440a is formed to discharge static elimination air in the horizontal direction that is the insertion direction of the insertion portion 411. The upper discharge port 440b is formed to discharge static elimination air in a direction inclined upward from the air discharge direction of the central discharge port 440a. The lower discharge port 440c is formed to discharge static elimination air in a direction inclined downward from the air discharge direction of the central discharge port 440a. Inside the opener claw 410 and the insertion portion 411, a flow path 470 for guiding the static elimination air to the discharge ports 440a to 440c is formed. The flow path 470 constitutes a path branched from the air duct 460 toward the discharge ports 440a to 440c.

  As shown in FIG. 10, the discharge unit 440 is used for static elimination toward the middle between the middle plates 270 in the arrangement direction of the middle plates 270 in a state where the insertion portion 411 is inserted and the interval between the middle plates 270 is widened. It arrange | positions so that air may be discharged. In the present embodiment, the discharge unit 440 is disposed at a position that is intermediate between the adjacent intermediate plates 270 in the arrangement direction of the intermediate plates 270. As illustrated in FIG. 10, the discharge unit is not positioned at the distal end of the insertion unit 411 even though the discharge unit 440 is positioned at the middle position of the intermediate plate 270.

  This is because the insertion portion 411 is asymmetrically tapered toward the insertion direction. The distal end of the insertion portion 411 is located on the side where the intermediate plate 270 is brought close by the pressing of the movable plate 260, that is, on the side plate 220 side with respect to the intermediate position between the intermediate plates 270 in the state where the insertion portion 411 is inserted. For this reason, in this embodiment, the discharge part 440 is formed not at the distal end of the insertion part 411 but at a position shifted from the distal end to the proximal end side.

  Next, the operation of the intermediate plate positioning device 400 will be described. Each component of the intermediate plate positioning device 400 is controlled by a control unit (not shown).

  FIG. 11 is a diagram illustrating a state in which the discharging air is blown from the discharge unit. FIG. 12 is a diagram illustrating a state in which static elimination air is blown from the discharge unit to the middle of the middle plate. 11A is a view showing a state before the opener claw 410 is inserted between the middle plates 270, and FIG. 11B is a view after the opener claw 410 is inserted between the middle plates 270. FIG. FIG.

  As shown by broken line arrows in FIGS. 11A and 11B, the opener claw 410 discharges air for discharging from the central discharge port 440a, the upper discharge port 440b, and the lower discharge port 440c. Specifically, the control unit controls the blower and the ionizer 450 to generate static elimination air. The generated static elimination air is supplied to the discharge unit 440 via the air duct 460 and the flow path 470, and is discharged from the central discharge port 440a, the upper discharge port 440b, and the lower discharge port 440c. For example, as shown in FIG. 11A, before the opener claw 410 is inserted between the middle plates 270, the discharging of static elimination air is started. Further, as shown in FIG. 11B, after the opener claw 410 is inserted between the middle plates 270, the discharge of the static elimination air may be continued.

  The central discharge port 440a discharges static elimination air toward a position that is a central portion in the surface direction of the battery cell 100 in a state where the battery cell 100 is accommodated between the middle plates 270. The upper discharge port 440b discharges static elimination air toward a position above the center portion of the battery cell 100, that is, a peripheral edge portion in a state where the battery cell 100 is accommodated between the middle plates 270. The lower discharge port 440c discharges the static elimination air toward a position below the center portion of the battery cell 100, that is, a peripheral edge portion in a state where the battery cell 100 is accommodated between the middle plates 270. The upper discharge port 440b and the lower discharge port 440c correspond to peripheral discharge ports. The discharged static elimination air enters between the middle plate 270 and the battery cell 100 and removes static electricity generated by friction between the middle plate 270 and the battery cell 100. In the present embodiment, since the discharging air is discharged from the central discharge port 440a, the upper discharge port 440b, and the lower discharge port 440c toward the central portion and the peripheral portion of the battery cell 100, it extends over a wide range between the middle plates 270. Static electricity can be blown. As shown by a broken line arrow in FIG. 12, the discharge unit 440 discharges the neutralizing air toward the middle of the adjacent intermediate plates 270 with the insertion portion 411 being inserted and the interval between the adjacent intermediate plates 270 being widened. Discharge. The static elimination air discharged from the discharge part 440 advances while diffusing. For this reason, the static elimination air can be sprayed evenly to the middle plates 270 on both sides of the discharge portion 440.

  As described above, according to the battery cell storage device 200 and the middle plate positioning device 400 of the present embodiment, the following effects can be obtained.

  In the present embodiment, the insertion portion 411 of the opener claw 410 has a discharge portion 440, and the discharge portion 440 discharges static elimination air between the adjacent intermediate plates 270. Therefore, static electricity generated by friction between the battery cell 100 and the middle plate 270 can be removed. Thereby, sticking to the middle board 270 of the battery cell 100 can be suppressed, and the battery cell 100 can be easily taken out from the battery cell storage device 200. Moreover, since the discharge part 440 is provided in the insertion part 411, it is not necessary to secure the installation space of the discharge part 440 separately, and apparatus design can be facilitated.

  In the present embodiment, the flow path 470 is formed inside the opener claw 410 and the insertion portion 411. Therefore, it is not necessary to separately secure an installation space for the air flow path, and the structure around the opener claw 410 can be simplified.

  Moreover, in this embodiment, the discharge part 440 has the center discharge port 440a which discharges the air for static elimination toward the center part of the surface direction of the battery cell 100 in the state in which the battery cell 100 was accommodated, and upward and downward. An upper discharge port 440b and a lower discharge port 440c for discharging are provided. Thereby, since the static elimination air can be discharged toward the center part and the peripheral part of the battery cell 100, the static elimination air can be sprayed over a wide range between the intermediate plates 270. Therefore, static electricity generated between the intermediate plate 270 and the battery cell 100 can be more reliably removed. In particular, since the neutralizing air is blown radially including the peripheral portion with the central portion as a reference, the entire space between the middle plate 270 and the battery cell 100 can be evenly removed.

  Further, in the present embodiment, the discharge unit 440 is configured so that the adjacent intermediate plates in the arrangement direction of the intermediate plates 270 are widened in a state where the interval between the adjacent intermediate plates 270 is widened by inserting the insertion portion 411 therebetween. Discharge the neutralizing air toward the middle. The static elimination air collides with the battery cell 100 and is uniformly blown to the middle plates 270 on both sides. Thereby, static electricity generated between the middle plate 270 and the battery cell 100 can be more reliably removed.

  In the present embodiment, a recess is formed between adjacent insertion portions 411. When the insertion portion 411 is inserted between adjacent intermediate plates 270, the end of the intermediate plate 270 is disposed in the recess. As a result, the intermediate plate 270 is positioned. Thereby, since the positional relationship between the insertion portion 411 and the middle plate 270 is fixed, the positional relationship between the discharge portion 440 provided in the insertion portion 411 and the middle plate 270 is also fixed. Accordingly, the static elimination air can be repeatedly blown to the same position between the discharge portion 440 and the middle plate 270, and static electricity generated between the middle plate 270 and the battery cell 100 can be stably removed.

  In this embodiment, the insertion portion 411 is formed to be asymmetrically tapered toward the insertion direction, and the distal end of the insertion portion 411 is located on the side where the movable plate 260 approaches the middle plate 270. Thereby, for example, even when the middle plate 270 is brought closer to the movable plate 260 after the battery cell 100 is pressed, the distal end of the insertion portion 411 is positioned on the side closer to the middle plate 270. It can be easily inserted between the middle plates 270.

  In the present embodiment, the case where the battery cell 100 is pressurized in the battery cell storage device 200 has been described as an example, but the present invention is not limited to this. For example, the battery cell storage device 200 may position the battery cell 100 stored for various processes. Alternatively, the battery cell storage device 200 may carry a plurality of battery cells 100 simultaneously.

  Further, in the present embodiment, the example in which the discharging air is started before the opener claw 410 is inserted between the middle plates 270 has been described, but the discharging timing of the discharging air is not limited to this. For example, the discharge of air for discharging may be started simultaneously with the insertion of the opener claw 410 between the middle plates 270, or the discharge of air for discharging after the opener claw 410 is inserted between the middle plates 270. You may start.

  In the present embodiment, the central discharge port 440a of the insertion portion 411 is provided at a position horizontal to the central portion of the battery cell 100 accommodated between the middle plates 270, and discharges air for discharging in the horizontal direction. However, it is not limited to this. For example, when the central discharge port 440a is provided below the central portion of the battery cell 100, the central discharge port 440a is directed upward from the horizontal in order to discharge static elimination air toward the central portion of the battery cell 100. Discharge air for discharging.

  In the present embodiment, the upper discharge port 440b and the lower discharge port 440c have been described as discharging the discharging air upward and downward from the horizontal, but the present invention is not limited thereto. In addition to the central discharge port 440a, an additional discharge port may be provided so as to discharge static elimination air horizontally toward the peripheral edge of the battery cell 100.

  Moreover, although this embodiment demonstrated as what sprays the air for static elimination radially including a peripheral part on the basis of the center part of the battery cell 100, it is not limited to this. For example, the upper discharge port 440b and the lower discharge port 440c may be omitted, and the static elimination air may be blown only from the central discharge port 440a. Alternatively, only one of the upper discharge port 440b and the lower discharge port 440c may be omitted, and an additional discharge port may be provided. The discharge direction of static elimination air from the upper discharge port 440b and the lower discharge port 440c may or may not be equal to the discharge direction of static elimination air from the central discharge port 440a.

  Moreover, although this embodiment demonstrated the example in which the two insertion parts 411 were provided in the one opener nail | claw 410, it is not limited to this. Only one insertion part 411 may be provided in one opener claw 410, or three or more insertion parts 411 may be provided.

100 battery cells,
110 positive lead,
120 negative electrode lead,
130 exterior material,
200 battery cell storage device,
210 bottom plate,
220 side plate,
230 side plate,
240 bars,
250 thread,
260 Movable plate,
270 center plate,
300 conveyor,
310 body,
320 gripping part,
400 middle plate positioning device,
410 opener nails,
411 insertion part,
420 shaft,
430 fixing plate,
440 discharge part,
440a Central outlet,
440b Upper discharge port,
440c Lower discharge port,
450 ionizer,
460 air duct,
470 flow path.

Claims (6)

A plurality of plate-shaped intermediate plates arranged so that flat battery cells can be accommodated therebetween;
An insertion portion that increases the interval between the adjacent intermediate plates by being inserted between the adjacent intermediate plates from a direction intersecting with the arrangement direction of the intermediate plates;
A discharge portion that is provided in the insertion portion and discharges air for discharging toward the space between the adjacent intermediate plates;
A battery cell storage device. An ionizer that supplies static elimination air;
A flow path for guiding static elimination air from the ionizer to the discharge part,
The battery cell storage device according to claim 1, wherein at least a part of the flow path is formed inside the insertion portion. The discharge part is
A central discharge port for discharging static elimination air toward a central portion in the surface direction of the battery cell in a state in which the battery cell is stored;
The battery cell storage device according to claim 1, further comprising a peripheral discharge port that discharges air for discharging toward a peripheral portion located on a peripheral side of the battery cell with respect to the central portion.   The discharge unit discharges air for neutralization toward the middle of the adjacent intermediate plates in the arrangement direction in a state where the interval between the adjacent intermediate plates is widened by inserting the insertion portion therebetween. The battery cell storage device according to any one of claims 1 to 3. A plurality of the insertion portions arranged in the arrangement direction are integrally connected,
A recess is formed between the adjacent insertion portions,
The intermediate plate is positioned by positioning the end portion of the intermediate plate in the recess when the insertion portion is inserted between the adjacent intermediate plates. Battery cell storage device. A movable plate movable in the one direction to bring the plurality of intermediate plates in one direction of the arrangement direction;
The battery cell storage device according to any one of claims 1 to 5, wherein the insertion portion is formed to be asymmetrically tapered toward an insertion direction, and a tip is positioned on a side where the intermediate plate is brought closer.