Storage device and battery production system

Abstract

The embodiment of the utility model provides a storage device and a battery production system, the storage device is used for storing a plurality of battery monomers in a formation process, and the storage device comprises a frame body, a tray, a storage pool, a monitoring unit and a fire-fighting assembly. The tray is used for placing a plurality of battery monomers; the storage pool is fixedly arranged on the frame body and comprises a bottom plate and a plurality of side plates, the side plates are connected to the bottom plate, the side plates and the bottom plate define a containing cavity, and the containing cavity is used for containing a tray. And the monitoring unit is used for monitoring the abnormal condition of the battery monomers in the tray. The fire-fighting assembly is connected with the monitoring unit, the fire-fighting assembly comprises a liquid inlet unit and a liquid discharge unit, the liquid inlet unit is communicated with the accommodating cavity and is used for providing a fire-fighting medium for the accommodating cavity so as to reach a preset liquid level for soaking the battery monomers, and the liquid discharge unit is used for receiving the fire-fighting medium exceeding the preset liquid level in the accommodating cavity; the preset liquid level is configured to be lower than the height of the liquid injection hole of the battery monomer. The reliability of the warehousing device can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and more particularly, to a storage device and a battery production system. BACKGROUND

[0002] Battery cells are widely used in electronic devices, such as mobile phones, notebook computers, electric vehicles, electric cars, electric planes, electric ships, electric toy cars, electric toy ships, electric toy planes, electric tools, and the like.

[0003] Battery cells need to use a storage device in the formation stage. How to improve the reliability of the storage device is a research direction in the battery technology. CONTENT OF THE INVENTION

[0004] The present application provides a storage device and a battery production system, which can improve the reliability of the storage device.

[0005] The present application provides a storage device for storing a plurality of battery cells in a formation process. The storage device includes a frame body, a tray, a storage pool, a monitoring unit, and a fire-fighting assembly. The tray is used to place a plurality of battery cells. The storage pool is fixedly arranged on the frame body. The storage pool includes a bottom plate and a plurality of side plates. The plurality of side plates are connected to the bottom plate and form an accommodating cavity with the bottom plate. The accommodating cavity is used to accommodate the tray. The monitoring unit is used to monitor abnormal conditions of the battery cells in the tray. The fire-fighting assembly is connected to the monitoring unit. The fire-fighting assembly includes a liquid inlet unit and a liquid outlet unit. The liquid inlet unit is in communication with the accommodating cavity and is used to provide a fire-fighting medium to the accommodating cavity to reach a preset liquid level for soaking the battery cells. The liquid outlet unit is used to receive the fire-fighting medium exceeding the preset liquid level in the accommodating cavity. The preset liquid level is configured to be lower than the height of the liquid injection hole of the battery cell.

[0006] In the above technical solution, the storage device of the present application stores the tray by using the storage pool. When the battery cells in the tray have abnormal conditions, the monitoring unit can timely monitor. Then, the liquid inlet unit provides the fire-fighting medium to the storage pool to soak the battery cells and reach the preset liquid level. The liquid outlet unit receives the fire-fighting medium exceeding the preset liquid level in the accommodating cavity, so that the liquid level of the fire-fighting medium is kept near the preset liquid level. The fire-fighting medium quickly cools the battery cells, thereby reducing the influence of abnormal battery cells on other normal battery cells, reducing the risk of accident expansion, and improving the reliability of the storage device.

[0007] In some embodiments, the plurality of side plates includes at least one overflow plate. When the liquid level in the accommodating cavity reaches the preset liquid level, the overflow plate is used for the fire-fighting medium to flow out from the top end thereof, or the overflow plate is provided with a through hole penetrating along the thickness direction thereof, and the overflow plate is used for the fire-fighting medium to flow out from the through hole.

[0008] In the technical scheme, the overflow plate is arranged, so that the fire-fighting medium flows down from the top end or the through hole of the overflow plate after reaching the preset liquid level, and the fire-fighting medium can be kept at the preset liquid level, and the structure such as a valve is not needed, and the method is more reliable.

[0009] In some embodiments, the liquid discharge unit comprises a receiving container and a discharge pipe, the receiving container is arranged on the rack and below the storage pool, and the receiving container is used for receiving the fire-fighting medium flowing out of the overflow plate, and the discharge pipe is in communication with the receiving container and is used for discharging the fire-fighting medium in the receiving container.

[0010] In the technical scheme, the receiving container is arranged below the storage pool, so that the fire-fighting medium can be better collected, and the possibility that the fire-fighting medium flows to other positions and affects other battery cells or the environment is reduced. In addition, after the receiving container is arranged, the storage pool can be further arranged below the receiving container, so that the space utilization of the storage device is improved.

[0011] In some embodiments, the receiving containers and the storage pool are arranged at intervals.

[0012] In the technical scheme, when one of them is damaged, it is convenient to repair and replace.

[0013] In some embodiments, the number of receiving containers is multiple, at least part of the receiving containers are arranged side by side at the same height of the rack, the receiving container comprises a bottom wall and multiple side walls, the multiple side walls are connected to the bottom wall and arranged at part of the outer periphery of the bottom wall, one end of the bottom wall where the side wall is not arranged is provided with a recess, the recesses of the multiple receiving containers at the same height of the rack are in communication and form a strip-shaped groove, and the two ends of the strip-shaped groove in the length direction are respectively in communication with the discharge pipes.

[0014] In the technical scheme, the pipeline arrangement of the discharge pipe can be simplified, so that the space is saved.

[0015] In some embodiments, the multiple side plates comprise a door plate, the door plate is movably connected to at least one side plate adjacent to the door plate to form a side opening of the storage pool.

[0016] In the technical scheme, the door plate is arranged to form the side opening of the storage pool, so that the fire-fighting medium in the containing cavity can be discharged after the heat release of the out-of-control battery cell is completed, and the tray can be conveniently put into the containing cavity.

[0017] In some embodiments, the storage pool further comprises a driving member, the driving member is connected to the door plate and is used for driving the door plate to move to open or close the side opening of the storage pool.

[0018] In the technical scheme, the driving member is arranged to drive the door plate to open, and the use is more convenient.

[0019] In some embodiments, the door plate comprises an inner layer structure and an outer layer structure arranged in a spaced manner, the outer layer structure is located on the side of the inner layer structure away from the tray, and the inner layer structure and the outer layer structure are both slidingly arranged on the bottom plate or the side plate.

[0020] In the above technical solution, the door plate is arranged to comprise an inner layer structure and an outer layer structure, and both the inner layer structure and the outer layer structure are used to block the fire-fighting medium from flowing out of the containing cavity, thereby improving the sealing performance of the storage pool.

[0021] In some embodiments, the plurality of side plates comprises a first side plate adjacent to the door plate, the first side plate is provided with a mounting hole, and the door plate is movably arranged in the mounting hole along a first direction, and the first direction intersects with the height direction of the frame body.

[0022] In the above technical solution, by arranging the mounting hole on the first side plate, the door plate is facilitated to move along the first direction, and the door plate can block the mounting hole, thereby having good sealing performance. Moreover, by arranging the door plate to move along the first direction, the door plate can be reduced in the blocking in the height direction of the frame body, and the tray is facilitated to be placed into the containing cavity.

[0023] In some embodiments, the bottom plate is provided with a first recess or a first protrusion, the bottom end of the door plate is in recess-protrusion cooperation and sliding connection with the first recess or the first protrusion; and / or, the plurality of side plates comprises a second side plate adjacent to the door plate, the second side plate and the first side plate are oppositely arranged, the second side plate is provided with a second recess or a second protrusion, and the end of the door plate is in recess-protrusion cooperation with the second recess or the second protrusion.

[0024] In the above technical solution, the sealing tightness of the door plate and the second side plate or the bottom plate is increased, thereby reducing the volume of the fire-fighting medium flowing out of the gap due to the non-strict sealing when the battery monomer is abnormal.

[0025] In some embodiments, the liquid inlet of the liquid inlet unit is located in the area between the side plate and the tray, and / or the liquid inlet of the liquid inlet unit is located on the side plate.

[0026] In the above technical solution, the possibility of the fire-fighting medium coming from the liquid inlet directly falling into or splashing into the liquid injection hole of the battery monomer can be reduced, thereby reducing the possibility of the fire-fighting medium entering the battery monomer from the liquid injection hole to cause a violent reaction and lead to serious consequences.

[0027] In some embodiments, the liquid inlet unit comprises at least two liquid inlet pipes provided with liquid inlets, the at least two liquid inlet pipes are both used to provide the fire-fighting medium to the same containing cavity, each liquid inlet pipe is provided with a control valve, and each control valve is connected with the monitoring unit.

[0028] In the technical solution, the at least two liquid inlet pipes can make the fire-fighting medium quickly reach the preset liquid level and continuously take away the heat generated by the abnormal battery cell, so that the rapid response in abnormal conditions is realized, and the possibility of accident expansion is further reduced.

[0029] In some embodiments, the tray includes a bottom plate and a plurality of surrounding plates connected to the bottom plate and surrounding to form a containing space for containing the battery cells, and the surrounding plates and / or the bottom plate are provided with a plurality of through holes for introducing the fire-fighting medium from the containing cavity into the containing space.

[0030] In the technical solution, the plurality of surrounding plates are arranged to enhance the structural strength of the tray, better protect the battery cells, and reduce the risk of the battery cells falling from the tray and being impacted during the transfer process.

[0031] In some embodiments, the tray further includes a plurality of heat insulation plates arranged in the containing space and connected to the surrounding plates, the heat insulation plates are used to separate two adjacent battery cells, and are configured to be greater than the height of the battery cells.

[0032] In the technical solution, the heat insulation plates are arranged to separate the out-of-control battery cell from the adjacent non-out-of-control battery cell when the battery cell is out of control, thereby reducing the influence of the out-of-control battery cell on other battery cells in the same tray and reducing the loss.

[0033] In some embodiments, the tray further includes an elevated structure arranged on the side of the bottom plate away from the containing space, and the operation space is formed between the bottom plate and the bottom plate.

[0034] In the technical solution, the elevated structure is arranged at the bottom of the tray, thereby facilitating the transfer of the tray.

[0035] In some embodiments, the monitoring unit includes a smoke sensor and / or a temperature sensor.

[0036] In the technical solution, the monitoring unit is arranged to include a smoke sensor and / or a temperature sensor, which can clearly and quickly perceive the out-of-control battery cell and reduce the reaction time of the monitoring unit.

[0037] In some embodiments, the number of storage pools, monitoring units and liquid inlet units is multiple, and at least part of the number of storage pools is provided with monitoring units and liquid inlet units.

[0038] In the technical solution, the storage capacity of the storage device for storing battery cells can be improved.

[0039] In a second aspect, the embodiments of the present application also provide a battery production system including the above-mentioned storage device. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the drawings.

[0041] Figure 1 A structural schematic diagram of a storage device provided by some embodiments of the present application;

[0042] Figure 2 Another structural schematic diagram of a storage device provided by some embodiments of the present application;

[0043] Figure 3 Still another structural schematic diagram of a storage device provided by some embodiments of the present application;

[0044] Figure 4 A structural schematic diagram of a storage pool and a battery tray in a storage device provided by some embodiments of the present application, wherein the storage pool is in a closed state;

[0045] Figure 5 A structural schematic diagram of a storage pool and a battery tray in a storage device provided by some embodiments of the present application, wherein the storage pool is in an open state;

[0046] Figure 6 A structural schematic diagram of a tray in a storage device provided by some embodiments of the present application;

[0047] Figure 7 A structural schematic diagram of an overhead structure in a storage device provided by some embodiments of the present application.

[0048] The reference signs of the specific embodiments are as follows:

[0049] 100, storage device; 200, battery monomer;

[0050] 1, frame body;

[0051] 2, tray; 21, bottom plate; 22, surrounding plate; 23, containing space; 24, through hole; 25, heat insulation plate; 26, overhead structure;

[0052] 3, storage pool; 31, bottom plate; 311, first groove; 32, side plate; 33, overflow plate; 34, door plate; 341, inner layer structure; 342, outer layer structure; 35, driving piece; 36, first side plate; 361, mounting hole; 37, second side plate; 371, second groove; 38, containing cavity;

[0053] 4, monitoring unit;

[0054] 51, liquid inlet unit; 511, liquid inlet pipe; 512, control valve; 52, liquid outlet unit; 521, receiving container; 522, discharge pipe; 523, bottom wall; 524, side wall; 525, recess;

[0055] X, first direction. DETAILED DESCRIPTION

[0056] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0057] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments of the present application and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0058] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0059] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0061] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0062] The "multiple" appearing in the present application refers to two or more (including two).

[0063] In the present application, the battery cell can include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium-sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, etc., and the embodiments of the present application are not limited thereto. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, etc., and the embodiments of the present application are not limited thereto.

[0064] The battery cell includes an electrode assembly and an electrolyte, and the electrode assembly includes a positive electrode tab, a negative electrode tab, and a separator. The battery cell mainly works by moving metal ions between the positive electrode tab and the negative electrode tab. The positive electrode tab includes a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector; the positive electrode current collector includes a positive electrode coating area and a positive electrode tab connected to the positive electrode coating area, and the positive electrode coating area is coated with the positive electrode active material layer, and the positive electrode tab is not coated with the positive electrode active material layer. Taking a lithium ion battery cell as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material layer includes a positive electrode active material, which can be lithium cobaltate, lithium iron phosphate, ternary lithium, or lithium manganate, etc. The negative electrode tab includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector includes a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area, and the negative electrode coating area is coated with the negative electrode active material layer, and the negative electrode tab is not coated with the negative electrode active material layer. The material of the negative electrode current collector can be copper, and the negative electrode active material layer includes a negative electrode active material, which can be carbon or silicon, etc. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc.

[0065] In the process of manufacturing the battery cell, it is usually necessary to go through a formation process. The formation process refers to a process in which, during the production of the battery cell, the active material of the battery cell is converted into a state with electrochemical properties through a specific electrochemical reaction, so that the battery can work normally. The process control of the formation affects the capacity of the battery cell and the subsequent performance, and this process is also a link that needs to be considered for safety. In the formation process, the battery cell needs to be charged and discharged or stored statically in a storage device, and the battery cell may catch fire in the storage device.

[0066] The existing measures for fire extinguishing are to use dry powder extinguishers loaded on the stacking machine to extinguish the fire. This method relies on manual operation, and thus has the risk of delayed handling leading to the expansion of the accident.

[0067] Therefore, the warehouse device provided by the present application stores the battery monomers in the storage pool, monitors the abnormal conditions of the battery monomers in the tray in time, provides the fire-fighting medium into the storage pool to soak the battery monomers and reach the preset liquid level, receives the fire-fighting medium exceeding the preset liquid level, maintains the liquid level of the fire-fighting medium at the preset liquid level, and quickly cools the battery monomers, thereby reducing the influence range of the abnormal battery monomers, reducing the risk of accident expansion, and improving the reliability of the warehouse device.

[0068] Figure 1 A structural schematic diagram of the warehouse device provided by some embodiments of the present application is shown in the figure; Figure 2 Another structural schematic diagram of the warehouse device provided by some embodiments of the present application is shown in the figure; Figure 3 Still another structural schematic diagram of the warehouse device provided by some embodiments of the present application is shown in the figure; Figure 4 A structural schematic diagram of the storage pool and the battery tray in the warehouse device provided by some embodiments of the present application is shown in the figure, wherein the storage pool is in a closed state.

[0069] As shown in the figure, Figures 1 to 4 The present application provides a warehouse device 100 for storing a plurality of battery monomers 200 in the formation process. The warehouse device 100 comprises a rack 1, a tray 2, a storage pool 3, a monitoring unit 4 and a fire-fighting assembly. The tray 2 is used to place a plurality of battery monomers 200. The storage pool 3 is fixedly arranged on the rack 1. The storage pool 3 comprises a bottom plate 31 and a plurality of side plates 32. The plurality of side plates 32 are connected to the bottom plate 31 and form a top containing cavity 38 with the bottom plate 31. The containing cavity 38 is used to contain the tray 2. The monitoring unit 4 is used to monitor the abnormal conditions of the battery monomers 200 in the tray 2. The fire-fighting assembly is connected to the monitoring unit 4. The fire-fighting assembly comprises a liquid inlet unit 51 and a liquid outlet unit 52. The liquid inlet unit 51 is in communication with the containing cavity 38 and is used to provide the fire-fighting medium into the containing cavity 38 to reach the preset liquid level for soaking the battery monomers 200. The liquid outlet unit 52 is used to receive the fire-fighting medium exceeding the preset liquid level in the containing cavity 38. The preset liquid level is configured to be lower than the height of the liquid injection hole of the battery monomer 200.

[0070] The warehouse device 100 of the present application is used to store the battery monomers 200. The battery monomers 200 can be in a normal temperature standing state or a high temperature standing state, or in a charging and discharging state, or in other states in the formation stage.

[0071] The tray 2 of the embodiment is used to place a plurality of battery monomers 200, and at least comprises a bottom for supporting the plurality of battery monomers 200.

[0072] The storage pool 3 of the embodiment has a certain sealing property, so that the fire-fighting medium can be accumulated therein and reach a preset liquid level. For example, the bottom plate 31 and the plurality of side plates 32 can be connected in sequence to form a rectangular water pool or a columnar water pool, etc. Alternatively, the plurality of side plates 32 are connected in sequence to form a ring structure, and the bottom plate 31 is closed to the opening at the bottom end of the ring structure.

[0073] The top of the storage pool 3 of the embodiment has an opening, which is communicated with the accommodating cavity 38, so as to facilitate the connection of other components used in the formation stage with the battery monomers 200. One accommodating cavity 38 can be used to accommodate one tray 2, or can be used to accommodate two or more trays 2.

[0074] The monitoring unit 4 of the embodiment is used to monitor the abnormal condition of the battery monomers 200, and can be located above the tray 2 or arranged on the tray 2. When the monitoring unit 4 is arranged on the tray 2, it can be above the preset liquid level. The monitoring unit 4 can comprise at least one temperature sensor for monitoring the temperature of the battery monomers 200, and when the battery monomers have an abnormality and the temperature exceeds a preset threshold, the fire-fighting assembly connected with the monitoring unit 4 injects the fire-fighting medium into the accommodating cavity 38.

[0075] The fire-fighting assembly and the monitoring unit 4 of the embodiment can be connected in a wired manner, or can be connected in a wireless manner, or can also be connected with a central control device such as a computer or a PLC controller, so that when the monitoring unit 4 monitors the abnormal condition of the battery monomers 200, the fire-fighting assembly can open the liquid inlet unit 51.

[0076] The liquid inlet unit 51 of the embodiment can comprise a liquid inlet pipe 511 for providing the fire-fighting medium into the accommodating cavity 38.

[0077] The liquid outlet unit 52 of the embodiment can comprise a discharge pipe arranged on the bottom plate 31 and communicated with the accommodating cavity 38, and a valve is arranged on the discharge pipe. When the fire-fighting medium reaches the preset liquid level, the valve is opened to discharge the fire-fighting medium exceeding the preset liquid level from the accommodating cavity 38. Further, the fire-fighting assembly further comprises a liquid level sensor arranged on the side plate 32 or the rack 1 or other positions, which is used to monitor the liquid level of the fire-fighting medium and is linked with the valve to open the valve to discharge the fire-fighting medium when the liquid level reaches the preset liquid level.

[0078] The fire-fighting medium of the embodiment can be water or other liquid used for cooling and fire extinguishing.

[0079] The storage device 100 of the embodiment stores the trays 2 in the storage pool 3, and when an abnormal situation such as smoking and heating occurs in the battery monomer 200 in the tray 2, the monitoring unit 4 can timely monitor, and then the liquid inlet unit 51 provides the fire-fighting medium into the storage pool 3 to soak the battery monomer 200 and reach a preset liquid level, the liquid outlet unit 52 receives the fire-fighting medium exceeding the preset liquid level in the containing cavity 38, so that the liquid level of the fire-fighting medium is kept near the preset liquid level, the fire-fighting medium quickly cools the battery monomer, thereby reducing the influence of the abnormal battery monomer 200 on other normal battery monomers 200, reducing the risk of accident expansion, and improving the reliability of the storage device 100. Moreover, the preset liquid level is configured to be lower than the height of the liquid injection hole of the battery monomer, which can reduce the possibility of causing a violent reaction and serious consequences caused by the fire-fighting medium entering the battery monomer 200 from the liquid injection hole.

[0080] In some embodiments, the plurality of side plates 32 includes at least one overflow plate 33; after the liquid level in the containing cavity 38 reaches the preset liquid level, the overflow plate 33 is used for the fire-fighting medium to flow out from the top end thereof, or the overflow plate 33 is provided with a through hole penetrating in the thickness direction thereof, and the overflow plate is used for the fire-fighting medium to flow out from the through hole.

[0081] The number of the overflow plate 33 of the embodiment can be one, two or even more.

[0082] The through hole on the overflow plate 33 of the embodiment is provided penetrating in the thickness direction of the overflow plate 33, which can be a long hole or a round hole or other shapes, and the number can be one or more.

[0083] When the overflow plate 33 is used for the fire-fighting medium to flow out from the top end thereof, the minimum height of the overflow plate 33 is the height of the preset liquid level, so that the fire-fighting medium can stay at the preset liquid level without rising further. Specifically, the overflow plate 33 can be a plate-shaped member with consistent height at the top; or a plate-shaped member with inconsistent height at the top, that is, the top end of the overflow plate 33 is provided with a notch, and the lowest part of the notch is the height of the preset liquid level.

[0084] Optionally, the top end overflow of the overflow plate 33 is configured to be lower than the top surface of the battery monomer by 2 cm.

[0085] Optionally, the height of the overflow plate 33 is lower than the height of the other side plates 32.

[0086] The overflow plate 33 is provided, so that the fire-fighting medium flows down from the top end or the through hole of the overflow plate 33 after reaching the preset liquid level, so that the fire-fighting medium can be kept at the preset liquid level. This kind of mode does not need to use valves and other structures, and is more reliable.

[0087] In some embodiments, the liquid draining unit 52 comprises a receiving container 521 and a drain pipe 522, the receiving container 521 is arranged below the storage pool 3 on the rack 1, and is used to receive the fire-fighting medium flowing from the overflow plate 33, and the drain pipe 522 is in communication with the receiving container 521 and is used to drain the fire-fighting medium in the receiving container 521.

[0088] The receiving container 521 of the present embodiment can be disc-shaped, box-shaped or other shapes, but its top end is open for receiving the fire-fighting medium.

[0089] The drain pipe 522 can be arranged on the bottom wall or the side wall of the receiving container 521 for draining the fire-fighting medium in the receiving container 521.

[0090] Optionally, along the height direction of the rack 1, the projection of the bottom plate 31 of the storage pool 3 on the receiving container 521 is located in the bottom wall of the receiving container 521. In this way, the possibility of the fire-fighting medium not flowing into the receiving container 521 is reduced.

[0091] The receiving container 521 is arranged below the storage pool 3 to better collect the fire-fighting medium and reduce the possibility of the fire-fighting medium flowing to other locations and affecting other battery cells 200 or the environment. Moreover, after the receiving container 521 is arranged, the storage pool 3 can continue to be arranged below the receiving container 521, thereby improving the space utilization of the storage device 100.

[0092] In some embodiments, the receiving container 521 and the storage pool 3 are arranged at intervals.

[0093] The receiving container 521 of the present embodiment has a spacing with the bottom of the storage pool 3.

[0094] In this way, when one of them is damaged, it is convenient to repair and replace.

[0095] In some embodiments, the number of receiving containers 521 is multiple, and at least part of the number of receiving containers 521 are arranged side by side at the same height of the rack 1, the receiving container 521 comprises a bottom wall 523 and multiple side walls 524, the multiple side walls 524 are connected to the bottom wall 523 and arranged on part of the outer periphery of the bottom wall 523, one end of the bottom wall 523 which is not provided with the side wall 524 is provided with a recess 525, the recesses 525 of the multiple receiving containers 521 located at the same height of the rack 1 are in communication and form a strip-shaped groove, and the two ends of the strip-shaped groove in the length direction are respectively in communication with the drain pipes 522.

[0096] Optionally, the number of side walls 524 is three.

[0097] For example, the two ends of the strip-shaped groove in the length direction are in communication with the two drain pipes 522 respectively.

[0098] In this way, the pipeline arrangement of the exhaust pipe 522 can be simplified, thereby saving space.

[0099] Figure 5 The structural diagram of the storage pool and the battery tray in the storage device provided by some embodiments of the present application is shown, wherein the storage pool is in an open state.

[0100] Please refer to Figure 4 and Figure 5 In some embodiments, the plurality of side plates 32 comprises a door plate 34, which is movably connected to at least one side plate 32 adjacent to the door plate 34 to form a side opening of the storage pool 3.

[0101] The door plate 34 of the present embodiment is movably connected to at least one side plate 32 adjacent to the door plate 34. For example, the door plate 34 is movably arranged in the height direction of the rack 1 and is adjacent to two side plates 32. The side of the two side plates 32 facing the door plate 34 is provided with a groove or a protrusion, and the two sides of the door plate 34 are slidably matched with the two grooves or protrusions. The door plate 34 can be slid upward in a direction away from the bottom plate 31. For example, the bottom plate 31 is provided with a groove or a protrusion matched with the bottom end of the door plate 34.

[0102] The door plate 34 of the present embodiment can be driven to move by a driving component or manually opened by an operator.

[0103] Optionally, the door plate 34 is the overflow plate 33.

[0104] The door plate 34 is arranged to form a side opening of the storage pool 3, so as to discharge the fire-fighting medium in the containing cavity 38 after the heat release of the uncontrolled battery monomer 200 is completed, and facilitate the placing of the tray 2 into the containing cavity 38.

[0105] In some embodiments, the storage pool 3 further comprises a driving member 35 connected to the door plate 34 and used to drive the door plate 34 to move to open or close the side opening of the storage pool 3.

[0106] The driving member 35 of the present embodiment can be a servo motor, or a cylinder or a hydraulic cylinder, etc. The driving member 35 can be fixed on the rack 1, or on the side plate 32, or on other positions.

[0107] The driving member 35 is arranged to drive the door plate 34 to open, which is more convenient to use.

[0108] In some embodiments, the door plate 34 comprises an inner layer structure 341 and an outer layer structure 342 arranged at intervals, and the outer layer structure 342 is located on the side of the inner layer structure 341 away from the tray 2. The inner layer structure 341 and the outer layer structure 342 are both slidably arranged on the bottom plate 31 or the side plate 32.

[0109] The outer layer structure 342 and the inner layer structure 341 of the embodiment can have the same shape or different shapes, both of which are plate-shaped structures.

[0110] The inner layer structure 341 and the outer layer structure 342 of the embodiment are both slidingly arranged on the bottom plate 31 or the side plate 32, including two schemes: the inner layer structure 341 and the outer layer structure 342 are both slidingly arranged on the bottom plate 31, or the inner layer structure 341 and the outer layer structure 342 are both slidingly arranged on the side plate 32.

[0111] Optionally, the inner layer structure 341 and the outer layer structure 342 are slidingly arranged on two side plates 32 adjacent to the door plate 34.

[0112] Optionally, the inner layer structure 341 and the outer layer structure 342 are both connected to the driving member 35 and are driven to move together by the driving member 35.

[0113] The door plate 34 is arranged to include the inner layer structure 341 and the outer layer structure 342, and the inner layer structure 341 and the outer layer structure 342 are both used to block the fire-fighting medium from flowing out of the containing cavity 38, thereby improving the sealing performance of the storage pool 3.

[0114] In some embodiments, the plurality of side plates 32 includes a first side plate 36 adjacent to the door plate 34, the first side plate 36 is provided with a mounting hole 361, and the door plate 34 is movably arranged in the mounting hole 361 along a first direction X intersecting the height direction of the rack body 1.

[0115] Illustratively, the mounting hole 361 is adapted in shape and size to the door plate 34 to play a guiding role in the movement of the door plate 34 along the first direction X. Optionally, the mounting hole 361 is rectangular in shape, and the cross section of the door plate 34 is rectangular in shape.

[0116] Optionally, the driving member 35 is connected to the door plate 34 and is used to drive the door plate 34 to move along the first direction X.

[0117] Optionally, the door plate 34 includes the inner layer structure 341 and the outer layer structure 342, the first side plate 36 is provided with two mounting holes 361 arranged at intervals, the inner layer structure 341 and the outer layer structure 342 are movably arranged in the two mounting holes 361 along the first direction respectively, and the inner layer structure 341 and the outer layer structure 342 are both slidingly connected to the bottom plate 31.

[0118] Optionally, the first direction X is perpendicular to the height direction of the rack body 1.

[0119] By setting the mounting hole 361 on the first side plate 36, the door plate 34 is facilitated to move along the first direction X, and the door plate 34 can block the mounting hole 361, thereby having better sealing performance. Moreover, by setting the door plate 34 to move along the first direction X, the door plate 34 can be reduced in the height direction of the rack body 1, and the tray 2 is facilitated to be put into the containing cavity 38.

[0120] In some embodiments, the bottom plate 31 is provided with the first recess 311 or the first protrusion, and the bottom end of the door plate 34 is in recess-protrusion cooperation and sliding connection with the first recess 311 or the first protrusion; and / or, the plurality of side plates 32 comprises a second side plate 37 adjacent to the door plate 34, the second side plate 37 is oppositely arranged with the first side plate 36, and the second side plate 37 is provided with a second recess 371 or a second protrusion, and the end of the door plate 34 is in recess-protrusion cooperation with the second recess 371 or the second protrusion.

[0121] The bottom end of the door plate 34 in the embodiment is in recess-protrusion cooperation and sliding connection with the first recess 311 or the first protrusion, that is, when the bottom plate 31 is provided with the first recess 311, the door plate 34 is provided with a protrusion structure in recess-protrusion cooperation and sliding connection with the first recess 311; when the bottom plate 31 is provided with the first protrusion, the door plate 34 is provided with a recess structure in recess-protrusion cooperation and sliding connection with the first protrusion.

[0122] The end of the door plate 34 in the embodiment is in recess-protrusion cooperation with the second recess 371 or the second protrusion, that is, when the second side plate 37 is provided with the second recess 371, the door plate 34 is provided with a protrusion structure in recess-protrusion cooperation with the second recess 371; when the second side plate 37 is provided with the second protrusion, the door plate 34 is provided with a recess structure in recess-protrusion cooperation with the second protrusion.

[0123] In this way, the sealing tightness of the door plate 34 and the second side plate 37 or the bottom plate 31 is increased, so that when the battery monomer 200 is abnormal, the volume of the fire-fighting medium flowing out from the gap due to the non-strict sealing is reduced.

[0124] Please refer to Figure 2 and Figure 3 In some embodiments, the liquid inlet of the liquid inlet unit 51 is located in the area between the side plate 32 and the tray 2, and / or the liquid inlet of the liquid inlet unit 51 is located on the side plate 32.

[0125] The liquid inlet of the embodiment is located in the area between the side plate 32 and the tray 2, which means that the liquid inlet is located between the side plate 32 and the tray 2, but not above the tray 2 or above the side plate 32.

[0126] The liquid inlet of the embodiment is located on the side plate 32, and the liquid inlet is embedded on the side plate 32. Optionally, the side plate 32 is provided with a through channel, and the liquid inlet passes through the through channel to provide the fire-fighting medium to the containing cavity 38.

[0127] In this way, the possibility of the fire-fighting medium directly falling or splashing into the liquid injection hole of the battery cell 200 from the liquid inlet is reduced, thereby reducing the possibility of the fire-fighting medium entering the battery cell 200 from the liquid injection hole to cause a violent reaction and lead to serious consequences.

[0128] Optionally, the height of the water inlet is lower than the minimum height of the top end of the overflow plate.

[0129] In some embodiments, the liquid inlet unit 51 includes at least two liquid inlet pipes 511 each provided with a liquid inlet, and the at least two liquid inlet pipes 511 are each used to supply the fire-fighting medium to the same containing cavity 38, and each liquid inlet pipe 511 is provided with a control valve 512, and each control valve 512 is connected to the monitoring unit 4.

[0130] For example, the number of liquid inlet units 51 is multiple, and the number of storage pools 3 is multiple, and the multiple storage pools 3 are arranged one-to-one with the multiple liquid inlet units 51.

[0131] The liquid inlet pipe 511 of the present embodiment is provided with a control valve 512, which can be an electromagnetic control valve 512, or an electric valve, a pneumatic valve, or a hydraulic valve, etc.

[0132] The control valve 512 of the present embodiment can be connected to the monitoring unit 4 in a wired manner, or in a wireless manner, or a central control device such as a computer or a PLC controller can be arranged to be connected to the control valve 512 and the monitoring unit 4 respectively, so that when the monitoring unit 4 detects an abnormal condition of the battery cell 200, the control valve 512 can open the liquid inlet pipe 511.

[0133] The arrangement of at least two liquid inlet pipes 511 can make the fire-fighting medium quickly reach the preset liquid level, and continuously take away the heat generated by the abnormal battery cell, so as to realize rapid response under abnormal conditions and further reduce the possibility of accident expansion.

[0134] Figure 6 The structure of the tray in the storage device provided in some embodiments of the present application is shown in the schematic view.

[0135] Please refer to Figure 6 In some embodiments, the tray 2 includes a bottom support plate 21 and a plurality of surrounding plates 22 connected to the bottom support plate 21 and surrounding to form a containing space 23 for containing the battery cell 200, and the surrounding plate 22 and / or the bottom support plate 21 is provided with a plurality of through holes 24 for introducing the fire-fighting medium from the containing cavity 38 into the containing space 23.

[0136] The top of the tray 2 of the present embodiment has an opening which is in communication with the containing space 23.

[0137] Exemplarily, the plurality of surrounding plates 22 are sequentially connected to form a ring structure, and the bottom supporting plate 21 is closed to the opening at the bottom end of the ring structure.

[0138] Exemplarily, when only the bottom supporting plate 21 is provided with the through hole 24, a supporting structure needs to be arranged below the bottom supporting plate 21 to elevate the bottom supporting plate 21, so that the fire-fighting medium can flow into the containing space 23 from the through hole 24 of the bottom supporting plate 21.

[0139] It should be noted that, in the through holes 24 of the surrounding plates 22, the height of at least part of the through holes 24 is configured to be lower than the height of the top surface of the battery monomer 200.

[0140] The plurality of surrounding plates 22 are arranged to enhance the structural strength of the tray 2, and to better protect the battery monomer 200, and to reduce the risk of the battery monomer 200 falling from the tray 2 and being impacted during the transfer process.

[0141] Optionally, the height of the surrounding plate 22 is configured to be greater than the height of the battery monomer 200.

[0142] In some embodiments, the tray 2 further comprises a plurality of heat insulation plates 25, the heat insulation plates 25 are arranged in the containing space 23 and connected with the surrounding plates 22, the heat insulation plates 25 are used to separate two adjacent battery monomers 200, and are configured to be greater than the height of the battery monomer 200.

[0143] Exemplarily, the heat insulation plate 25 is made of a flame-retardant and high-temperature-resistant material.

[0144] The heat insulation plate 25 of the embodiment is connected with the surrounding plate 22, specifically, the heat insulation plate 25 can be directly connected with the surrounding plate 22, or indirectly connected with the surrounding plate 22 through other components, or indirectly connected with the surrounding plate 22 through the bottom supporting plate 21.

[0145] Optionally, at least part of the heat insulation plates 25 are sequentially and spacedly arranged in the same direction, and one battery monomer 200 is arranged between two adjacent heat insulation plates 25. Further optionally, the plurality of heat insulation plates 25 are divided into at least two columns, and each column comprises a plurality of heat insulation plates 25 arranged in the same direction.

[0146] The heat insulation plate 25 is arranged to separate the out-of-control battery monomer 200 from the adjacent non-out-of-control battery monomer 200 when the battery monomer 200 is out of control, thereby reducing the influence of the out-of-control battery monomer 200 on other battery monomers 200 in the same tray 2 and reducing the loss.

[0147] Figure 7 A structural schematic diagram of the elevated structure in the storage device provided by some embodiments of the application is shown.

[0148] Please refer to Figure 6 andFigure 7 In some embodiments, the tray 2 further comprises an elevated structure 26, which is arranged on the side of the bottom plate 21 away from the accommodation space 23, and forms an operation space between the bottom plate 21 and the bottom plate 31.

[0149] For example, the elevated structure 26 can comprise a plurality of columns connected to the bottom plate 21 and arranged at intervals to elevate the bottom plate 21.

[0150] For example, the elevated structure 26 can comprise at least two plate-shaped structures standing and connected to one end of the bottom plate 21.

[0151] By arranging the elevated structure 26 at the bottom of the tray 2, the tray 2 is facilitated to be transported.

[0152] In some embodiments, the monitoring unit 4 comprises a smoke sensor and / or a temperature sensor.

[0153] By arranging the monitoring unit 4 to comprise a smoke sensor and / or a temperature sensor, both can be more clearly and quickly perceived for the out-of-control battery monomer, reducing the reaction time of the monitoring unit 4.

[0154] In some embodiments, the number of storage pools 3, monitoring units 4 and liquid inlet units 51 is multiple, and at least part of the number of storage pools 3 is provided with monitoring units 4 and liquid inlet units 51.

[0155] At least part of the number of storage pools 3 of the embodiment is provided with at least one monitoring unit 4 and at least one liquid inlet unit 51. For example, each storage pool 3 is provided with one monitoring unit 4 and one liquid inlet unit 51.

[0156] For example, the plurality of storage pools 3 and the plurality of receiving containers 521 can be arranged one by one, or at least two storage pools 3 can share one receiving container 521.

[0157] In this way, the storage capacity of the storage device 100 for storing battery monomers 200 can be improved.

[0158] The embodiment of the application further provides a battery production system comprising the above-mentioned storage device 100.

[0159] For example, the battery production system comprises a packaging device located downstream of the storage device 100 and used for sealingly connecting a sealing member to the liquid injection hole. For example, welding or adhesion can be used.

[0160] For example, the battery production system further comprises a liquid injection device located upstream of the storage device 100. The liquid injection device is used for injecting electrolyte into the shell from the liquid injection hole.

[0161] The battery cell 200 includes a housing in which an electrode assembly is positioned. The housing includes an end cap and a case, and the case is provided with an opening, and the end cap is provided to cover the opening. The case can be provided with one or more openings, and the end cap can also be provided with one or more openings.

[0162] Referring to Figures 1-7The embodiment of the present application provides a storage device 100 for storing a plurality of battery monomers 200 in a formation process, the storage device 100 comprises a rack body 1, a tray 2, a storage pool 3, a monitoring unit 4 and a fire-fighting assembly. The tray 2 is used for placing a plurality of battery monomers 200. The storage pool 3 is fixedly arranged on the rack body 1, the storage pool 3 comprises a bottom plate 31 and a plurality of side plates 32, the plurality of side plates 32 are connected to the bottom plate 31 and are surrounded by the bottom plate 31 to form a top containing cavity 38, and the containing cavity 38 is used for containing the tray 2. The monitoring unit 4 is used for monitoring abnormal conditions of the battery monomers 200 in the tray 2. The fire-fighting assembly is connected with the monitoring unit 4, the fire-fighting assembly comprises a liquid inlet unit 51 and a liquid outlet unit 52, the liquid inlet unit 51 is communicated with the containing cavity 38 and is used for providing fire-fighting medium to the containing cavity 38 to reach a preset liquid level of the battery monomers 200, and the liquid outlet unit 52 is used for receiving the fire-fighting medium exceeding the preset liquid level in the containing cavity 38, wherein the preset liquid level is configured to be lower than the height of a liquid injection hole of the battery monomer 200. The plurality of side plates 32 comprises at least one overflow plate 33, after the liquid level in the containing cavity 38 reaches the preset liquid level, the overflow plate 33 is used for allowing the fire-fighting medium to flow out from the top end of the overflow plate 33. The liquid outlet unit 52 comprises a receiving container 521 and a discharge pipe 522, the receiving container 521 is arranged below the storage pool 3 on the rack body 1 and is used for receiving the fire-fighting medium flowing out from the overflow plate 33, and the discharge pipe 522 is communicated with the receiving container 521 and is used for discharging the fire-fighting medium in the receiving container 521. The receiving container 521 and the storage pool 3 are arranged at intervals. The plurality of side plates 32 comprises a door plate 34, the door plate 34 is movably connected to one side plate 32 adjacent to the door plate 34 to form a side opening of the storage pool 3. The door plate 34 comprises an inner layer structure 341 and an outer layer structure 342 arranged at intervals, the outer layer structure 342 is located on the side of the inner layer structure 341 away from the tray 2, and the inner layer structure 341 and the outer layer structure 342 are both slidingly arranged on the bottom plate 31. The plurality of side plates 32 comprises a first side plate 36 adjacent to the door plate 34, the first side plate 36 is provided with a mounting hole 361, the door plate 34 is movably arranged in the mounting hole 361 along a first direction X, and the first direction X intersects with the height direction of the rack body 1. The liquid inlet of the liquid inlet unit 51 is located in the region between the side plate 32 and the tray 2. The liquid inlet unit 51 comprises at least two liquid inlet pipes 511 provided with liquid inlets, the at least two liquid inlet pipes 511 are both used for providing fire-fighting medium to the same containing cavity 38, each liquid inlet pipe 511 is provided with a control valve 512, and each control valve 512 is connected with the monitoring unit. The tray 2 comprises a bottom tray plate 21 and a plurality of surrounding plates 22, the plurality of surrounding plates 22 are connected to the bottom tray plate 21 and are arranged to form a containing space 23 for containing the battery monomers 200, the surrounding plates 22 and the bottom tray plate 21 are both provided with a plurality of through holes 24, and the through holes 24 are used for introducing the fire-fighting medium from the containing cavity 38 into the containing space 23.The tray 2 further comprises a plurality of heat insulation plates 25 arranged in the accommodation space 23 and connected with the surrounding plate 22, the heat insulation plates 25 are used to separate two adjacent battery monomers 200, and are configured to be greater than the height of the battery monomer 200. The tray 2 further comprises an overhead structure 26 arranged on the side of the bottom plate 21 away from the accommodation space 23, and forms an operation space between the bottom plate 21 and the bottom plate 31. The number of storage pools 3, monitoring units 4 and liquid inlet units 51 is multiple, and at least part of the number of storage pools 3 are provided with monitoring units 4 and liquid inlet units 51.

[0163] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0164] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A storage device for storing a plurality of battery cells in a formation process, characterized by, The application relates to a battery storage device, comprising: a frame body; a tray for placing a plurality of battery monomers; a storage pool fixedly arranged on the frame body, the storage pool comprising a bottom plate and a plurality of side plates connected to the bottom plate and surrounding the bottom plate to form a containing cavity for containing the tray; a monitoring unit for monitoring abnormal conditions of the battery monomers in the tray; a fire-fighting assembly connected with the monitoring unit, the fire-fighting assembly comprising a liquid inlet unit and a liquid outlet unit, the liquid inlet unit being in communication with the containing cavity and being used for providing fire-fighting medium to the containing cavity to reach a preset liquid level for soaking the battery monomers, and the liquid outlet unit being used for receiving the fire-fighting medium exceeding the preset liquid level in the containing cavity, wherein the preset liquid level is configured to be lower than the height of liquid injection holes of the battery monomers.

2. The storage device of claim 1, wherein, The plurality of side plates comprises at least one overflow plate, and after the liquid level in the containing cavity reaches the preset liquid level, the overflow plate is used for allowing the fire-fighting medium to flow out from the top end of the overflow plate, or the overflow plate is provided with a through hole penetrating along the thickness direction of the overflow plate, and the overflow plate is used for allowing the fire-fighting medium to flow out from the through hole.

3. The storage device of claim 2, wherein, The liquid outlet unit comprises a receiving container and a discharge pipe, the receiving container is arranged on the frame body and below the storage pool, the receiving container is used for receiving the fire-fighting medium flowing out from the overflow plate, and the discharge pipe is in communication with the receiving container and is used for discharging the fire-fighting medium in the receiving container.

4. The storage device of claim 3, wherein, The receiving container and the storage pool are arranged at intervals.

5. The storage device of claim 3, wherein, The number of the receiving containers is plural, at least part of the receiving containers are arranged side by side at the same height of the frame body, the receiving container comprises a bottom wall and a plurality of side walls connected to the bottom wall and arranged on part of the outer periphery of the bottom wall, one end of the bottom wall without the side wall is provided with a recess, the recesses of the receiving containers arranged at the same height of the frame body are in communication and form a strip-shaped groove, and the two ends of the strip-shaped groove in the length direction are respectively in communication with the discharge pipes.

6. The storage device of claim 1, wherein, The plurality of side plates comprises a door plate, the door plate is movably connected to at least one side plate adjacent to the door plate to form a side opening of the storage pool.

7. The storage device of claim 6, wherein, The storage pool further comprises a driving member connected to the door plate and used for driving the door plate to move to open or close the side opening of the storage pool.

8. The storage device of claim 6, wherein, The door plate comprises an inner layer structure and an outer layer structure arranged at intervals, the outer layer structure is located on the side of the inner layer structure away from the tray, and the inner layer structure and the outer layer structure are both slidingly arranged on the bottom plate or the side plate.

9. The storage device of claim 6, wherein, The plurality of side plates comprises a first side plate adjacent to the door plate, the first side plate is provided with a mounting hole, the door plate is movably arranged in the mounting hole in a first direction intersecting with the height direction of the frame body.

10. The storage device of claim 9, wherein, The bottom plate is provided with a first recess or a first protrusion, the bottom end of the door plate is in concave-convex matching and sliding connection with the first recess or the first protrusion; and / or, The plurality of side plates comprises a second side plate adjacent to the door plate, the second side plate and the first side plate are oppositely arranged, the second side plate is provided with a second groove or a second protrusion, and the end of the door plate is matched with the second groove or the second protrusion.

11. The storage device of claim 1, wherein, The liquid inlet of the liquid inlet unit is located in the area between the side plate and the tray, and / or the liquid inlet of the liquid inlet unit is located on the side plate.

12. The storage device of claim 11, wherein, The liquid inlet unit comprises at least two liquid inlet pipes provided with the liquid inlet, the at least two liquid inlet pipes are used to provide the fire-fighting medium to the same containing cavity, each liquid inlet pipe is provided with a control valve, and each control valve is connected with the monitoring unit.

13. The storage device of claim 1, wherein, The tray comprises a bottom tray plate and a plurality of surrounding plates, the plurality of surrounding plates are connected to the bottom tray plate and surround to form a containing space for containing battery monomers, the surrounding plates and / or the bottom tray plate are provided with a plurality of through holes for introducing the fire-fighting medium from the containing cavity into the containing space.

14. The storage device of claim 13, wherein, The tray further comprises a plurality of heat insulation plates, the plurality of heat insulation plates are arranged in the containing space and connected with the surrounding plates, the heat insulation plates are used to separate two adjacent battery monomers, and are configured to be greater than the height of the battery monomers.

15. The storage device of claim 13, wherein, The tray further comprises an elevated structure, the elevated structure is arranged on the side of the bottom tray plate away from the containing space, and forms an operation space between the bottom tray plate and the bottom plate.

16. The storage device of claim 1, wherein, The monitoring unit comprises a smoke sensor and / or a temperature sensor.

17. The storage device of claim 1, wherein, The number of the storage pools, the monitoring units and the liquid inlet units is respectively multiple, and at least part of the number of the storage pools are provided with the monitoring units and the liquid inlet units.

18. A battery production system characterized by comprising: The warehouse device comprises the warehouse device according to any one of claims 1-17.

Images