Battery cell module and energy storage equipment

Abstract

The utility model provides a battery cell module and energy storage equipment. The battery cell module comprises a battery cell group, a supporting piece and an acquisition plate, the battery cell group comprises a plurality of battery cells; the supporting piece is arranged on one side of the battery cell group, the bottom end of the supporting piece is provided with an extension part, and the extension part extends to the lower part of the battery cell group. The collecting plate is arranged on the supporting piece and electrically connected with the battery cell, at least part of the collecting plate is arranged on the extending part, and a water inlet detection module is integrated on the part, located on the extending part, of the collecting plate and is configured to send an electric signal when making contact with water liquid. The water inlet detection module is integrated on the collection plate, the water inlet detection module can be installed while the collection plate is installed, the installation efficiency is improved, the water inlet detection module is arranged on the extension part and located below the battery cell group, the water inlet detection module is supported by the extension part, and the water inlet detection module can be conveniently installed. And the water inlet detection module is positioned below the battery cell group, so that the water inlet condition below the battery cell group can be detected in time, and the effects of prompt and protection in time are achieved.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment technology, specifically to a battery cell module and energy storage equipment. Background Technology

[0002] Currently, energy storage devices typically include water ingress detection devices to detect whether water has entered the device. In related technologies, the water ingress detection device is installed as a separate component inside the energy storage device and connected to the circuit board in the energy storage device via cables. This results in increased material costs and reduced installation efficiency. Utility Model Content

[0003] In view of this, this application provides a battery cell module and energy storage device that can reduce material costs and improve installation efficiency.

[0004] One embodiment of this application provides a battery cell module, including a battery cell assembly, a support member, and a data acquisition board. The battery cell assembly includes multiple battery cells. The support member is disposed on one side of the battery cell assembly, and its bottom end has an extension that extends below the multiple battery cells. The data acquisition board is disposed on the support member and electrically connected to the battery cells. At least a portion of the data acquisition board is disposed in the extension, and the portion of the data acquisition board located in the extension integrates a water ingress detection module, which is configured to send an electrical signal upon contact with water.

[0005] The battery cell module provided in this application integrates the water ingress detection module into the acquisition board, so that the water ingress detection module is not a separate component. The water ingress detection module can be installed at the same time as the acquisition board, eliminating the need for an additional water ingress detection module. This improves installation efficiency and reduces material costs. In addition, by placing the water ingress detection module in the extension section, which is located below multiple battery cells, the water ingress detection module is not only supported by the extension section to obtain sufficient structural strength, but also, by being located below multiple battery cells, can detect water ingress below the battery cell group in a timely manner, thereby sending an electrical signal in a timely manner to provide timely warning and protection.

[0006] In some embodiments, the support member has multiple limiting protrusions, and the acquisition plate has multiple through holes. Each limiting protrusion passes through a through hole, and the top of the limiting protrusion is configured to be deformable, such that the size of the top of the limiting protrusion is larger than the diameter of the through hole, so as to limit the acquisition plate to the support member.

[0007] In some embodiments, the support member is provided with a storage groove that accommodates the acquisition plate, a limiting protrusion is provided on the bottom surface of the storage groove, and the side wall of the storage groove limits the acquisition plate.

[0008] In some embodiments, the battery cell module further includes multiple busbars disposed on the support member, the busbars being electrically connected to the electrodes of the battery cell, and the acquisition board being electrically connected to the multiple busbars.

[0009] In some embodiments, there are multiple battery cell groups arranged side by side. The battery cell module also includes multiple connecting plates. The same side of two adjacent battery cell groups is connected by a connecting plate to fix the multiple battery cell groups.

[0010] In some embodiments, each cell assembly is provided with a positioning post, and each connecting plate is provided with a positioning hole. The positioning post is inserted into the positioning hole to position the connecting plate and the cell assembly.

[0011] In some embodiments, each cell assembly has multiple mounting holes, each connecting plate has multiple through holes, each through hole is aligned with a mounting hole, and the cell module also includes multiple locking fasteners, each locking fastener passing through a through hole and inserted into a mounting hole to fix the connecting plate and the cell assembly.

[0012] In some embodiments, the support member has multiple recesses.

[0013] In some embodiments, the battery cell module further includes an insulating plate disposed on the side of the support member facing away from the battery cell module, and the insulating plate covers the electrical connection between the acquisition plate and the battery cell.

[0014] In one embodiment of this application, an energy storage device is also provided, including a housing, a control board, and a battery cell module as described in any of the above embodiments. The battery cell module and the control board are disposed inside the housing. The acquisition board is electrically connected to the control board. When the water ingress detection module comes into contact with water, it sends an electrical signal to the control board. The control board is used to control the energy storage device.

[0015] The energy storage device provided in this application integrates the water ingress detection module into the acquisition board, so that the water ingress detection module is not a separate component. The water ingress detection module can be installed at the same time as the acquisition board, eliminating the need for an additional water ingress detection module. This improves installation efficiency and reduces material costs. In addition, by placing the water ingress detection module in the extension section, which is located below the battery cell assembly, the water ingress detection module is not only supported by the extension section to obtain sufficient structural strength, but also positioned below the battery cell assembly to detect water ingress below the battery cell assembly in a timely manner. This allows for timely transmission of electrical signals, providing timely alerts and protection, and improving the reliability of the energy storage device. Attached Figure Description

[0016] Figure 1 This is a perspective view of an energy storage device according to an embodiment of this application.

[0017] Figure 2 for Figure 1 An exploded view of the energy storage device.

[0018] Figure 3 for Figure 2 A 3D view of the battery cell module.

[0019] Figure 4 for Figure 3 An exploded view of the battery cell module.

[0020] Figure 5 for Figure 4 Enlarged view of point A in the image.

[0021] Figure 6 for Figure 4 A 3D view of the supporting components, acquisition board, manifold, and water inlet detection module.

[0022] Figure 7 for Figure 6 Enlarged view of point B in the image.

[0023] Figure 8 This is a perspective view of a portion of the support member, acquisition plate, and water ingress detection module in another embodiment of this application.

[0024] Explanation of main component symbols

[0025] 100. Battery cell module; 200. Energy storage device; 201. Housing; 10. Battery cell assembly; 11. Battery cell; 12. Positioning post; 13. Mounting hole; 14. Battery cell assembly shell; 20. Support component; 21. Extension; 22. Limiting protrusion; 23. Storage groove; 24. Recess; 241. First deformation space; 242. Second deformation space; 25. Limiting post; 30. Acquisition board; 31. Through hole; 40. Water inlet detection module; 50. Busbar; 51. Limiting hole; 60. Connecting plate; 61. Positioning hole; 62. Perforation; 70. Locking fastener; 80. Insulating plate. Detailed Implementation

[0026] The technical solution of this application will now be described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.

[0027] It should be noted that when an element is considered to be "connected to" or "located on" another element, it can be directly connected to the other element or may have an element centrally located. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "fixed," etc., should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The terms "first," "second," etc., are only used to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary / secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified. The shape descriptions in the embodiments of this application are merely illustrative and should not constitute any absolute limitation on this application. The terms "vertical" and "parallel" are used to describe the ideal state between two components; in actual production or use, a state approximately vertical or parallel may exist.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Where there is no conflict, the various embodiments in this application can be combined with each other.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms “comprising,” “having,” and “equipped with,” and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The term “or / and” as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Currently, energy storage devices typically include water ingress detection devices to detect whether water has entered the device. In related technologies, the water ingress detection device is installed as a separate component inside the energy storage device and connected to the circuit board in the energy storage device via cables. This results in increased material costs and reduced installation efficiency.

[0031] In view of this, this application provides a battery cell module and energy storage device that can reduce material costs and improve installation efficiency. The battery cell module includes a battery cell assembly, a support member, and a data acquisition board. The battery cell assembly includes multiple battery cells. The support member is disposed on one side of the battery cell assembly, and the bottom end of the support member has an extension that extends below the multiple battery cells. The data acquisition board is disposed on the support member and electrically connected to the battery cells. At least a portion of the data acquisition board is disposed in the extension, and the portion of the data acquisition board located in the extension integrates a water ingress detection module, which is configured to send an electrical signal when in contact with water.

[0032] The battery cell module provided in this application integrates the water ingress detection module into the acquisition board, so that the water ingress detection module is not a separate component. The water ingress detection module can be installed at the same time as the acquisition board, eliminating the need for an additional water ingress detection module. This improves installation efficiency and reduces material costs. In addition, by placing the water ingress detection module in the extension section, which is located below multiple battery cells, the water ingress detection module is not only supported by the extension section to obtain sufficient structural strength, but also positioned below the battery cells to detect water ingress below the battery cell assembly in a timely manner, thereby sending an electrical signal in a timely manner to provide timely warning and protection.

[0033] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] like Figure 1 and Figure 2 As shown, this application embodiment provides a battery cell module 100 and an energy storage device 200. The energy storage device 200 includes a housing 201, a control board (not shown), and the battery cell module 100. The battery cell module 100 and the control board are disposed inside the housing 201. The housing 201 is used to protect the battery cell module 100 and the control board. The control board can be used to control the charging and discharging of the battery cell module 100. The energy storage device 200 can store electrical energy in the battery cell module 100 and supply power to electrical appliances in scenarios where electrical energy is needed, such as outdoor scenarios or home scenarios.

[0035] Optionally, the energy storage device 200 is placed vertically to save space. The battery module 100 is located at the bottom inside the housing 201, and the control board is located at the top inside the housing 201. Since the heavier battery module 100 is located at the bottom, the center of gravity of the energy storage device 200 can be lowered, improving the stability of the energy storage device 200. In addition, when the energy storage device 200 is used in an environment with a risk of water ingress, such as outdoor rainy days, the battery module 100 being located at the bottom can detect whether water has entered the energy storage device 200 more quickly, so as to play a protective and warning role in a timely manner, such as timely power cut-off and issuing warning information.

[0036] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, the battery module 100 includes a battery cell assembly 10, a support member 20, and a data acquisition board 30. The battery cell assembly 10 includes multiple battery cells 11. The support member 20 is disposed on one side of the battery cell assembly 10, and its bottom end has an extension 21 that extends below the multiple battery cells 11. The data acquisition board 30 is disposed on the support member 20 and electrically connected to the battery cells 11. At least a portion of the data acquisition board 30 is disposed in the extension 21, and the portion of the data acquisition board 30 located in the extension 21 integrates a water ingress detection module 40. The water ingress detection module 40 is configured to send an electrical signal when in contact with water, thereby providing timely protection and alerting. Here, "below" can refer to the side of the battery module 100 closest to the supporting surface in its operating state. For example, when the energy storage device 200 is placed on the ground, "below" refers to the side of the battery module 100 closest to the ground.

[0037] Optionally, the acquisition board 30 is electrically connected to the control board. When the water ingress detection module 40 comes into contact with water, it indicates that water has entered the housing 201. At this time, the water ingress detection module 40 sends an electrical signal to the control board through the acquisition board 30. After receiving the electrical signal, the control board can control the energy storage device 200 to cut off the power in time or issue a prompt message, such as a flashing light, sound, or information reminder from the user's mobile terminal.

[0038] By integrating the water ingress detection module 40 into the acquisition board 30, the battery cell module 100 avoids treating the water ingress detection module 40 as a separate component. The water ingress detection module 40 can be installed simultaneously with the acquisition board 30, eliminating the need for a separate installation. This improves the installation efficiency of the battery cell module 100 and reduces material costs. Furthermore, by placing the water ingress detection module 40 in the extension 21, which is located below multiple battery cells 11, the battery cell module 100 achieves sufficient structural strength without significantly increasing the overall area and volume of the support member 20. This allows the water ingress detection module 40 to be supported by the extension 21 and positioned below the battery cells 11, enabling timely detection of water ingress below the battery cells 11 and timely transmission of electrical signals. This provides timely alerts and protection, reducing the risk of water ingress and short circuits in the battery cell assembly 10.

[0039] In some embodiments, such as Figure 3 and Figure 4As shown, the battery cell assembly 10 also includes a battery cell assembly shell 14, which is used to fix multiple battery cells 11 in the battery cell assembly 10 and to protect the multiple battery cells 11. Optionally, the bottom of the battery cell assembly shell 14 is located below the multiple battery cells 11 to support the multiple battery cells 11. The extension 21 is attached to the side surface of the bottom of the battery cell assembly shell 14 to be supported by the battery cell assembly shell 14, thereby improving the structural strength. At the same time, it also ensures that the extension 21 is located below the multiple battery cells 11 so as to detect water ingress more promptly.

[0040] In some embodiments, such as Figure 3 , Figure 4 and Figure 6 As shown, the battery cell module 100 also includes multiple busbars 50, which are disposed on the support member 20. The multiple busbars 50 are used to electrically connect the electrodes of multiple battery cells 11, enabling the cells 11 to be connected in series or parallel. A data acquisition board 30 is electrically connected to the multiple busbars 50. The data acquisition board 30 collects data such as voltage, current, and temperature of the multiple battery cells 11 through the busbars 50 to monitor the status of the battery cell module 10 in real time and ensure its safe and efficient operation. For example, the busbars 50 are aluminum or copper busbars, etc.

[0041] Optionally, multiple battery cells 11 in the battery cell assembly 10 are stacked vertically, and the support member 20, the acquisition board 30, and multiple busbars 50 are all located on the same side of the multiple battery cells 11 in the horizontal direction. The multiple busbars 50 are electrically connected to the electrodes of the multiple battery cells 11 on that side.

[0042] In some embodiments, such as Figure 6 and Figure 7 As shown, the support member 20 has multiple limiting protrusions 22, and the acquisition plate 30 has multiple through holes 31. Each limiting protrusion 22 passes through a through hole 31. The top of the limiting protrusion 22 is configured to be deformable, such that the size of the top of the limiting protrusion 22 is larger than the diameter of the through hole 31, so as to limit the acquisition plate 30 to the support member 20. Here, the top of the limiting protrusion 22 refers to the part of the limiting protrusion 22 that passes through the through hole 31. Specifically, the top of the limiting protrusion 22 refers to one end of the support member 20 of the limiting protrusion 22. Understandably, before the limiting protrusion 22 passes through the through hole 31, the top size of the limiting protrusion 22 must be smaller than the diameter of the through hole 31 so that the limiting protrusion 22 can pass through the through hole 31. After the top of the limiting protrusion 22 passes through the through hole 31, it is deformed to change the size of the top of the limiting protrusion 22 so that the top of the limiting protrusion 22 cannot pass through the through hole 31, thereby limiting the acquisition plate 30 and preventing the acquisition plate from detaching from the limiting protrusion 22.

[0043] Optionally, the limiting protrusion 22 is columnar, and the top of the limiting protrusion 22 is deformed by hot melting or stamping. After deformation, the top of the limiting protrusion 22 can be disc-shaped, etc., as long as it cannot pass through the through hole 31.

[0044] Optionally, such as Figure 6 and Figure 7 As shown, the support member 20 may also have multiple limiting posts 25 corresponding to the position of each busbar 50. Each busbar 50 has a limiting hole 51, and each limiting post 25 passes through a limiting hole 51. The top end of the limiting post 25 can be deformed so that the size of the top end of the limiting post 25 is larger than the diameter of the limiting hole 51, so as to limit the busbar 50 to the support member 20. Here, the top end of the limiting post 25 refers to the part of the limiting post 25 that passes through the limiting hole 51. For example, the top end of the limiting post 25 can be deformed by hot melting or stamping. After deformation, the top end of the limiting post 25 can be in the shape of a disc, etc., as long as it cannot pass through the limiting hole 51.

[0045] In some embodiments, such as Figure 4 and Figure 6 As shown, the support member 20 is provided with a storage groove 23, which is used to accommodate the acquisition plate 30. The limiting protrusion 22 is provided on the bottom surface of the storage groove 23, and the side wall of the storage groove 23 can limit the acquisition plate 30.

[0046] Optionally, the acquisition plate 30 has a U-shaped strip structure, and the shape of the storage groove 23 is similar to that of the acquisition plate 30, so that the side wall of the storage groove 23 limits the acquisition plate 30 to improve the stability of the acquisition plate 30 in the storage groove 23.

[0047] Optionally, the receiving groove 23 passes through the support member 20 corresponding to the extension 21, and the bottom surface of the receiving groove 23 extends to the extension 21, but the sidewall of the receiving groove 23 does not extend to the extension 21. This allows the water inlet detection module 40 on the extension 21 to be fully exposed to the environment inside the housing 201, thereby allowing water to flow to the water inlet detection module 40 from more directions, thus improving the detection sensitivity of the water inlet detection module 40. This also prevents the sidewall of the receiving groove 23 from blocking the opposite sides of the water inlet detection module 40, which would prevent water from flowing from the opposite sides of the water inlet detection module 40 to the water inlet detection module 40, reducing the risk of detection failure of the water inlet detection module 40.

[0048] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, there are multiple battery cell groups 10 arranged side by side along a horizontal direction. The battery cell module 100 also includes multiple connecting plates 60. The top ends of two adjacent battery cell groups 10 are connected by a connecting plate 60, and / or the bottom ends of two adjacent battery cell groups 10 are connected by a connecting plate 60 to fix the relative positions between the multiple battery cell groups 10.

[0049] Optionally, there are two battery cell groups 10, with the top ends of the two battery cell groups 10 connected by a connecting plate 60 and the bottom ends of the two battery cell groups 10 connected by another connecting plate 60, so as to fix the relative position between the two battery cell groups 10.

[0050] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, each cell assembly 10 is provided with a positioning post 12, and each connecting plate 60 is provided with a positioning hole 61. The positioning post 12 is inserted into the positioning hole 61 to position the connecting plate 60 and the cell assembly 10. Exemplarily, each cell assembly 10 has a positioning post 12 at its top, and each connecting plate 60 has two positioning holes 61. One positioning hole 61 is for the insertion of the positioning post 12 of one cell assembly 10, and the other positioning hole 61 is for the insertion of the positioning post 12 of an adjacent cell assembly 10, thereby positioning the connecting plate 60 and two adjacent cell assemblies 10. Optionally, the positioning post 12 is provided on the cell assembly housing 14.

[0051] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, each cell assembly 10 has multiple mounting holes 13, and each connecting plate 60 has multiple through holes 62. Each through hole 62 is aligned with a mounting hole 13. The cell module 100 also includes multiple locking fasteners 70, each of which passes through a through hole 62 and is inserted into a mounting hole 13 to secure the connecting plate 60 to the cell assembly 10. Exemplarily, the locking fastener 70 is a screw, and the mounting hole 13 is a threaded hole. The locking fastener 70 is threadedly connected to the mounting hole 13 to secure the connecting plate 60 to the cell assembly 10. Optionally, the mounting hole 13 is located in the cell assembly housing 14.

[0052] In some embodiments, such as Figure 4 and Figure 6 As shown, the support member 20 has multiple recesses 24 located on the side of the support member 20 facing away from the battery cell assembly 10. The recesses 24 provide deformation space and absorb energy when the support member 20 is deformed under force, reducing stress transmission and protecting the battery cell assembly 10. For example, the support member 20 is made of plastic, which has insulating and energy-absorbing properties.

[0053] Optionally, such as Figure 4 and Figure 6As shown, the support member 20 is provided with two collection plates 30, and multiple busbars 50 are provided between the two collection plates 30. Multiple collection plates 30 are also provided on opposite sides of the two collection plates 30. On opposite sides of the two collection plates 30, the recesses 24 between two adjacent busbars 50 can form a first deformation space 241. The first deformation space 241 can be circular or square, etc., so that the support member 20 can deform and absorb energy at the edge of both sides. Between the two collection plates 30, the recesses 24 between four adjacent busbars 50 can form a second deformation space 242. The second deformation space 242 can be cross-shaped, so that the support member 20 can deform and absorb energy at the center.

[0054] In some embodiments, such as Figure 3 and Figure 4 As shown, the battery cell module 100 also includes an insulating plate 80. The insulating plate 80 is located on the side of the support member 20 facing away from the battery cell module 10. The insulating plate 80 covers the electrical connection between the acquisition plate 30, the busbar 50 and the battery cell 11 to provide insulation and reduce the short circuit risk of the battery cell module 100.

[0055] In some embodiments, the acquisition board 30 is a flexible printed circuit (FPC), which is highly flexible and small in size, thus reducing the size of the battery cell module 100.

[0056] In some embodiments, the extension 21 is bent, such as Figure 8 As shown, a portion of the extension 21 can be located below the entire battery cell assembly 10, that is, below the bottom of the battery cell assembly housing 14. At the same time, a portion of the acquisition board 30 also extends to the bottom of the battery cell assembly housing 14, and the water ingress detection module 40 is integrated into this portion of the acquisition board 30, so that the water ingress detection module 40 is located below the entire battery cell assembly 10, thereby facilitating full contact with the water and timely detection of water ingress.

[0057] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A battery cell module, characterized in that, include: A battery cell assembly, comprising multiple battery cells; A support member, disposed on one side of the battery cell assembly, the support member having an extension at its bottom end extending below a plurality of the battery cells; and A data acquisition board is disposed on the support member and electrically connected to the battery cell. At least a portion of the data acquisition board is disposed on the extension portion. The portion of the data acquisition board located in the extension portion integrates a water ingress detection module, which is configured to send an electrical signal when in contact with water.

2. The cell module as described in claim 1, characterized in that: The support member has multiple limiting protrusions, and the acquisition plate has multiple through holes. Each limiting protrusion passes through one of the through holes. The top of the limiting protrusion is configured to be deformable, such that the size of the top of the limiting protrusion is larger than the diameter of the through hole, so as to limit the acquisition plate to the support member.

3. The cell module as described in claim 2, characterized in that: The support member is provided with a storage groove, which accommodates the collection plate. The limiting protrusion is provided on the bottom surface of the storage groove, and the side wall of the storage groove limits the position of the collection plate.

4. The cell module as described in any one of claims 1 to 3, characterized in that: The battery cell module also includes multiple busbars, which are disposed on the support member and electrically connected to the electrodes of the battery cell. The acquisition board is electrically connected to the multiple busbars.

5. The cell module as described in any one of claims 1 to 3, characterized in that: The battery cell assembly has multiple battery cell assemblies arranged side by side. The battery cell module also includes multiple connecting plates. Two adjacent battery cell assemblies are connected on the same side through a connecting plate to fix the multiple battery cell assemblies.

6. The cell module as described in claim 5, characterized in that: Each of the battery cells is provided with a positioning post, and each of the connecting plates is provided with a positioning hole. The positioning post is inserted into the positioning hole to position the connecting plate and the battery cell.

7. The cell module as described in claim 5, characterized in that: Each of the battery cells is provided with multiple mounting holes, each of the connecting plates is provided with multiple through holes, each through hole is aligned with one of the mounting holes, and the battery cell module also includes multiple locking fasteners, each of the locking fasteners passing through one of the through holes and inserted into the mounting hole to fix the connecting plate and the battery cell group.

8. The cell module as described in any one of claims 1 to 3, characterized in that: The support member has multiple recesses.

9. The cell module as described in any one of claims 1 to 3, characterized in that: The battery cell module also includes an insulating plate, which is disposed on the side of the support member facing away from the battery cell module, and the insulating plate covers the electrical connection between the acquisition board and the battery cell.

10. An energy storage device, characterized in that: The energy storage device includes a housing, a control board, and a battery cell module as described in any one of claims 1 to 9. The battery cell module and the control board are disposed inside the housing. The acquisition board is electrically connected to the control board. The water ingress detection module sends an electrical signal to the control board when it comes into contact with water. The control board is used to control the energy storage device.

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