CN223651521U - A battery pack and energy storage device - Google Patents
A battery pack and energy storage deviceInfo
- Publication number
- CN223651521U CN223651521U CN202422418772.9U CN202422418772U CN223651521U CN 223651521 U CN223651521 U CN 223651521U CN 202422418772 U CN202422418772 U CN 202422418772U CN 223651521 U CN223651521 U CN 223651521U
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- cooling plate
- liquid
- battery pack
- thermally conductive
- liquid cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
本申请提供一种电池包及储能装置，属于电池技术领域，电池包包括箱体、电池模组、集成母排和导热缓冲层。箱体具有一容纳腔；电池模组、集成母排和导热缓冲层均设置于容纳腔内。其中，集成母排与电池模组连接，导热缓冲层位于集成母排背离电池模组的一侧。本申请的实施例提供的电池包通过将导热缓冲层设置在集成母排背离电池模组一侧，能够将电池模组产生的热量通过集成母排和导热缓冲件传递至箱体上，进而通过箱体将电池模组产生的热量散发至外界，保证电池包的散热性能。同时，导热缓冲层还具有缓冲作用，当电池模组中电芯受热膨胀时，导热缓冲层能够吸收电芯膨胀力和膨胀位移，减少膨胀对箱体的影响，提高电池包的安全和稳定性。
This application provides a battery pack and energy storage device, belonging to the field of battery technology. The battery pack includes a housing, battery modules, an integrated busbar, and a thermally conductive buffer layer. The housing has a receiving cavity; the battery modules, integrated busbar, and thermally conductive buffer layer are all disposed within the receiving cavity. The integrated busbar is connected to the battery modules, and the thermally conductive buffer layer is located on the side of the integrated busbar facing away from the battery modules. The battery pack provided by the embodiments of this application, by placing the thermally conductive buffer layer on the side of the integrated busbar facing away from the battery modules, can transfer the heat generated by the battery modules to the housing through the integrated busbar and the thermally conductive buffer, and then dissipate the heat generated by the battery modules to the outside through the housing, ensuring the heat dissipation performance of the battery pack. Simultaneously, the thermally conductive buffer layer also has a buffering function; when the cells in the battery modules expand due to heat, the thermally conductive buffer layer can absorb the expansion force and displacement of the cells, reducing the impact of expansion on the housing and improving the safety and stability of the battery pack.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery pack and an energy storage device.
Background
With the continuous improvement of the capacity of the battery core in the current battery pack, the heating power of the battery core is also increased. If the heat emitted by the battery cells in the battery pack cannot be released, the heat of the battery pack can be accumulated, so that the service life of the battery pack is affected. When the battery cell is heated or the battery cell is charged and discharged, the battery cell can be expanded to a certain extent, and the case body is easy to deform and damage, so that the safety performance of the battery pack is influenced.
Disclosure of utility model
The embodiment of the application provides a battery pack, which can reduce the influence of battery cell expansion on a box body, reduce the deformation damage phenomenon of the box body and improve the safety performance of the battery pack while guaranteeing the heat radiation performance.
In a first aspect, embodiments of the present application provide a battery pack including:
The box body is provided with a containing cavity;
The battery module is arranged in the accommodating cavity;
The integrated busbar is arranged in the accommodating cavity and is connected with the battery module;
the heat conduction buffer layer is arranged in the accommodating cavity and is positioned on one side of the integrated busbar, which is away from the battery module.
In some embodiments, the thermally conductive buffer layer comprises a thermally conductive silicone layer.
In some embodiments, the tank includes a first liquid cooling plate;
The first liquid cooling plate is arranged on one side of the heat conduction buffer layer, which is away from the battery module.
In some embodiments, an insulating bracket is arranged on one side of the integrated busbar, which faces away from the battery module;
The insulation support is provided with a groove structure, and the heat conduction buffer layer is positioned in the groove structure.
In some embodiments, the integrated busbar includes a plurality of buss bars configured to connect adjacent two cells in the battery module;
The groove structure comprises a plurality of groove parts, and the groove parts are arranged in one-to-one correspondence with the bus bars;
the heat conduction buffer layer comprises a plurality of heat conduction silica gel pads, and the heat conduction silica gel pads are arranged in the groove parts and are in one-to-one correspondence with the groove parts.
In some embodiments, a through hole is provided in the groove portion, through which the thermally conductive silicone pad is in contact with the busbar.
In some embodiments, the box further comprises a frame structure and a second liquid cooling plate, the first liquid cooling plate and the second liquid cooling plate being respectively disposed on opposite sides of the frame structure in the first direction;
The first liquid cooling plate and the second liquid cooling plate are respectively connected with the frame structure to form a box body, and the second liquid cooling plate is arranged on one side, deviating from the integrated busbar, of the battery module.
In some embodiments, a thermally conductive layer is disposed between the battery module and the second liquid cooling plate.
In some embodiments, the thermally conductive layer comprises a thermally conductive structural adhesive layer.
In some embodiments, the first liquid cooling plate is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet and the first liquid outlet are respectively arranged on two opposite sides of the first liquid cooling plate.
In some embodiments, the system further comprises a first liquid inlet pipe and a first liquid outlet pipe;
The first liquid inlet pipe is connected with the first liquid inlet, and the first liquid outlet pipe is connected with the first liquid outlet;
The liquid inlet pipe and the liquid outlet pipe are positioned outside the accommodating cavity, and the liquid inlet pipe and the liquid outlet pipe are both arranged on one side, close to the battery module, of the first liquid cooling plate.
In some embodiments, the second liquid cooling plate includes a second liquid inlet and a second liquid outlet, the second liquid inlet and the liquid outlet being disposed on a same side of the second liquid cooling plate.
In a second aspect, the present application also provides an energy storage device comprising a battery pack as described above.
The embodiment of the application has the beneficial effects that:
In an embodiment of the application, a battery pack includes a case, a battery module, an integrated busbar, and a thermally conductive buffer layer. The box has one and holds the chamber, and battery module, integrated female row and heat conduction buffer layer all set up in holding the intracavity, and integrated female row is connected with battery module, and heat conduction buffer layer is located integrated female row and deviates from battery module one side. Through setting up heat conduction buffer layer and deviating from battery module one side at the female row of integration, can pass through the heat that the battery module produced and arrange with heat conduction buffer piece and transmit to the box on, and then give off the heat that the battery module produced to the external world through the box, guarantee the heat dispersion of battery package. Meanwhile, the heat conduction buffer layer also has a buffer effect, when the battery core in the battery module is heated and expanded, the heat conduction buffer layer can absorb the expansion force and expansion displacement of the battery core, the influence of expansion on the box body is reduced, and the safety and stability of the battery pack are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded view of a battery pack according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an assembly structure of an integrated busbar and insulating support provided by an embodiment of the present application;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is a schematic structural view of a thermal buffer layer according to an embodiment of the present application;
Fig. 5 is a schematic structural diagram of a first liquid cooling plate according to an embodiment of the present application;
Fig. 6 is a schematic structural diagram of a first liquid cooling plate according to an embodiment of the present application;
Fig. 7 is a schematic structural diagram III of a first liquid cooling plate according to an embodiment of the present application;
Fig. 8 is a schematic diagram of an assembly structure of a frame structure and a second liquid cooling plate according to an embodiment of the present application;
fig. 9 is a schematic perspective view of a battery pack according to an embodiment of the present application.
Reference numerals illustrate:
1. The heat-conducting box comprises a box body, 11, a first liquid cooling plate, 111, a first liquid inlet, 112, a first liquid outlet, 113, a first liquid inlet pipe, 114, a first liquid outlet pipe, 115, a first flow channel, 12, a frame structure, 13, a second liquid cooling plate, 131, a second liquid inlet, 132, a second liquid outlet, 2, a battery module, 3, an integrated busbar, 31, a busbar, 4, an insulating bracket, 41, a groove structure, 411, a groove part, 5, a heat-conducting buffer layer, 51, a heat-conducting silica gel pad, 6 and a heat-conducting layer.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower directions of the device in actual use or operation, and specifically the directions of the drawings in the drawings, while "inner" and "outer" are used with respect to the outline of the device.
In a first aspect, as shown in fig. 1, an embodiment of the present application provides a battery pack including a case 1, a battery module 2, an integrated busbar 3, and a heat conductive buffer layer 5. The box 1 has one and holds the chamber, and battery module 2, integrated female row 3 and heat conduction buffer layer 5 all set up in holding the intracavity, and integrated female row 3 is connected with battery module 2, and heat conduction buffer layer 5 is located integrated female row 3 and deviates from battery module 2 one side. Through setting up heat conduction buffer layer 5 in the female row 3 of integration and deviating from battery module 2 one side, can pass through the heat that battery module 2 produced and arrange 3 and heat conduction buffer piece transmission to box 1 on, and then give off the heat that battery module 2 produced to the external world through box 1, guarantee the heat dispersion of battery package. Meanwhile, the heat conduction buffer layer 5 also has a buffer effect, when the battery cell in the battery module 2 is heated and expanded, the heat conduction buffer layer 5 can absorb the expansion force and expansion displacement of the battery cell, so that the influence of expansion on the box body 1 is reduced, and the safety and stability of the battery pack are improved.
The heat conducting buffer layer 5 is a composite structure layer with heat conducting performance and buffer performance. The heat conduction buffer layer 5 can transfer the heat generated by the battery module 2 to the box body 1 or the heat dissipation component, so that the heat dissipation performance of the battery pack is improved, and meanwhile, a buffer effect can be provided for the integrated busbar 3 and the box body 1, and when the battery cells in the battery module 2 are expanded, at least partial expansion force and expansion displacement can be counteracted, so that the stability and safety of the battery pack are improved.
Illustratively, the thermally conductive buffer layer 5 includes at least one of a silicon-based thermally conductive buffer layer 5, a graphite-based thermally conductive buffer layer 5, a metal composite thermally conductive buffer layer 5, and a ceramic-based thermally conductive buffer layer 5.
In some embodiments, the thermally conductive buffer layer 5 comprises a thermally conductive silicone layer. The heat-conducting silica gel layer has excellent heat conducting performance, and can rapidly conduct heat generated by the battery module 2 to an external heat dissipation system, so that the temperature inside the battery pack is effectively reduced, and the local overheating phenomenon is prevented. The heat conduction silica gel layer can also improve the combination tightness degree of the box body 1 and the integrated busbar 3, reduce thermal resistance and improve thermal contact efficiency, thereby improving heat dissipation effect. The heat-conducting silica gel layer has good flexibility and elasticity, can absorb and relieve mechanical stress generated in the charge-discharge and vibration processes of the battery pack, and enhances the mechanical stability of the battery pack. When the battery pack is charged, discharged or expanded under the condition of heating, and the battery cells in the battery module 2 are expanded under heating, the heat-conducting silica gel layer can absorb at least part of expansion force or expansion performance, so that the phenomenon that the case body 1 is deformed and damaged due to expansion is reduced.
In some embodiments, as shown in fig. 1, the case 1 includes a first liquid cooling plate 11, and the first liquid cooling plate 11 is disposed on a side of the heat conducting buffer layer 5 away from the battery module 2. The first liquid cooling plate 11 can rapidly absorb and dissipate heat generated from the battery module 2 by using a high heat exchange coefficient of the liquid flow through the circulating cooling liquid. Compared with air cooling heat dissipation, the heat-conducting material has higher heat-conducting efficiency and lower thermal resistance.
In this embodiment, the first liquid cooling plate 11 is disposed on one side of the heat conducting buffer layer 5 away from the battery module 2, and the first liquid cooling plate 11 can be used as a top plate of the box 1, so that the heat dissipation effect of the battery pack is ensured, and meanwhile, the structure of the box 1 is simplified. The heat conduction buffer layer 5 sets up between first liquid cooling board 11 and the female row 3 of integration, on the one hand, the inseparable degree that combines between first liquid cooling board 11 and the female row 3 of integration can be improved to heat conduction buffer layer 5, and on the other hand, heat conduction buffer layer 5 has the cushioning effect, can reduce the impaired phenomenon of first liquid cooling board 11 deformation that battery module 2 inflation led to improve the heat dispersion stability and the security of battery package.
In some embodiments, as shown in fig. 1 and 2, an insulating support 4 is disposed on a side of the integrated busbar 3 facing away from the battery module 2, a groove structure 41 is disposed on the insulating support 4, and the heat conducting buffer layer 5 is located in the groove structure 41.
Through set up insulating support 4 in integrated female row 3 deviating from battery module 2 one side to make heat conduction buffer layer 5 set up in the groove structure 41 in between the insulation, on the one hand, can make heat conduction buffer layer 5 can with the integrated female row 3 direct contact of needs radiating, improve radiating efficiency, on the other hand, carry out spacingly to heat conduction buffer layer 5 through groove structure 41, improve the structural stability of battery package.
In some embodiments, as shown in fig. 3 and 4, the integrated busbar 3 includes a plurality of busbars 31, the busbars 31 being configured to connect adjacent two cells in the battery module 2. The groove structure 41 includes a plurality of groove portions 411, and the groove portions 411 are disposed in a one-to-one correspondence with the bus bars 31. The heat conducting buffer layer 5 comprises a plurality of heat conducting silica gel pads 51, and the heat conducting silica gel pads 51 are arranged in the groove parts 411 and are arranged in one-to-one correspondence with the groove parts 411.
The bus bar 31 can connect the cells in the battery module 2 to transmit current. During the charge and discharge of the battery pack, the battery cells in the battery module 2 generate a large amount of heat, which is transferred to the bus bars 31 in contact therewith by means of heat conduction. Meanwhile, the bus bar 31 serves as a current transmission medium, and when a large current flows, joule heat is generated due to the existence of the resistor to further increase the temperature of the bus bar 31. By making the groove portions 411 and the bus bars 31 correspond to each other one by one and making the heat conductive silica gel pads 51 correspond to the groove portions 411 one by one, the heat conductive silica gel pads 51 can conduct heat effectively to the bus bars 31 corresponding thereto, and heat dissipation pertinency is improved.
In some embodiments, as shown in fig. 3, a through hole is provided in the groove portion 411, through which the thermal conductive silicone pad 51 is in contact with the bus bar 31. That is, the thermal resistance between the thermal pad 51 and the bus bar 31 can be reduced and the heat dissipation performance can be improved by directly contacting the thermal pad 51 with the bus bar 31 through the through hole provided in the groove portion 411.
As shown in fig. 3, the groove 411 is disposed corresponding to the bus bar 31, and the bottom of the groove 411 is hollowed out, such that the bus bar 31 is exposed at the bottom of the groove 411. Since the heat conductive silica gel pad 51 is disposed in the groove portion 411, the heat conductive silica gel pad 51 can be directly based on the bus bar 31, thereby reducing thermal resistance and improving efficiency of heat conduction.
In some embodiments, as shown in fig. 1 and 8, the case 1 further includes a frame structure 12 and a second liquid cooling plate 13, and the first liquid cooling plate 11 and the second liquid cooling plate 13 are respectively disposed on opposite sides of the frame structure 12 in the first direction Z. The first liquid cooling plate 11 and the second liquid cooling plate 13 are respectively connected with the frame structure 12 to form the box body 1, and the second liquid cooling plate 13 is arranged on one side, deviating from the integrated busbar 3, of the battery module 2.
That is, the top and bottom of the case 1 in the battery pack are provided with the first liquid cooling plate 11 and the second liquid cooling plate 13, respectively. The first liquid cooling plate 11 and the second liquid cooling plate 13 can respectively radiate heat to the top and the bottom of the battery module 2, and the radiating area of the battery module 2 is increased, so that the radiating performance of the battery pack is improved.
It is understood that the frame structure 12 can be enclosed around the periphery of the battery module 2, and both opposite sides of the frame structure 12 in the first direction Z have openings, and the first liquid cooling plate 11 and the second liquid cooling plate 13 are respectively disposed at the openings of both opposite sides of the frame structure 12 in the first direction, forming the case 1 having the accommodating cavity.
Wherein, the shape of the frame structure 12 may be correspondingly arranged according to the shape of the battery module 2. For example, the frame structure 12 may be rectangular, square, cylindrical, or other shape. The first liquid cooling plate 11 and the second liquid cooling plate 13 may be provided according to the shape of the frame structure 12. For example, when the frame structure 12 is rectangular parallelepiped, the first liquid-cooling plate 11 and the second liquid-cooling plate 13 may be disposed correspondingly rectangular, and when the frame structure 12 is cylindrical, the first liquid-cooling plate 11 and the second liquid-cooling plate 13 may be disposed correspondingly circular.
The first liquid cooling plate 11 and the second liquid cooling plate 13 are connected to the frame structure 12, respectively. Illustratively, the first liquid cooling plate 11 and the frame structure 12 may be connected by screws, a first connection hole is provided in the circumferential direction of the first liquid cooling plate 11, and a second connection hole is also provided in a corresponding position of the frame structure 12, and the first connection hole and the second connection hole are connected by screws. The second liquid cooling plate 13 and the frame structure 12 may be connected by welding.
In some embodiments, as shown in fig. 1, a heat conductive layer 6 is provided between the battery module 2 and the second liquid cooling plate 13. By arranging the heat conducting layer 6 between the battery module 2 and the second liquid cooling plate 13, the heat conducting performance between the battery module 2 and the second liquid cooling plate 13 can be improved, the heat resistance can be reduced, and the heat radiating performance of the second liquid cooling plate 13 to the battery module 2 can be improved.
In some embodiments, the thermally conductive layer 6 comprises a layer of thermally conductive structural glue. The heat conduction structure glue layer has high heat conductivity, can effectively transfer the heat generated by the battery module 2 to the second liquid cooling plate 13, so that the heat can be rapidly dissipated, and the heat dissipation performance of the second liquid cooling plate 13 to the battery module 2 can be improved. In addition, the heat conduction structure glue layer also has a bonding effect, so that the battery module 2 and the second liquid cooling plate 13 can be tightly bonded together, the structural strength and stability of the battery pack are improved, and the problem of loosening or damage caused by vibration or impact is reduced. The heat conduction structure glue layer also has some buffer performance, can alleviate the influence of battery module 2 inflation to the second liquid cooling board 13 to a certain extent.
In some embodiments, as shown in fig. 5 and 6, the first liquid cooling plate 11 is provided with a first liquid inlet 111 and a first liquid outlet 112, and the first liquid inlet 111 and the first liquid outlet 112 are respectively disposed on two opposite sides of the first liquid cooling plate 11.
As shown in fig. 5 and 6, the first liquid inlet 111 and the first liquid outlet 112 are respectively disposed at opposite sides in the second direction X, so that a first flow channel 115 extending in the second direction X is formed in the first liquid cooling plate 11. The cooling liquid enters the first liquid cooling plate 11 from the first liquid inlet 111, passes through the first flow channel 115, and flows out through the first liquid outlet 112 on the other side, so that the flow path of the cooling liquid in the first liquid cooling plate 11 can be shortened, the cooling liquid can flow through the first liquid cooling plate 11 more quickly, and the cooling efficiency is improved. Meanwhile, the shorter flow path also reduces the flow resistance, so that the cooling liquid flows in the first liquid cooling plate 11 more smoothly, and the cooling and heat dissipation effects can be improved.
In some embodiments, as shown in fig. 5, the first liquid cooling plate 11 includes a plurality of first flow channels 115 therein, and the plurality of first flow channels 115 each extend along the second direction X. After the cooling liquid with lower temperature enters the first liquid cooling plate 11 from the first liquid inlet 111, the cooling liquid is dispersed into each first flow channel 115 to flow, absorbs heat generated by the battery module 2, and then flows out from the first liquid outlet 112 on the other side. Since the cooling liquid does not need to flow in the first liquid cooling plate 11 in a reciprocating manner for many times, the temperature uniformity of the first liquid cooling plate 11 is improved.
In some embodiments, as shown in fig. 7, the battery pack further includes a first liquid inlet pipe 113 and a first liquid outlet pipe 114, the first liquid inlet pipe 113 is connected to the first liquid inlet 111, and the first liquid outlet pipe 114 is connected to the first liquid outlet 112. The liquid inlet pipe and the liquid outlet pipe are positioned outside the accommodating cavity, and the liquid inlet pipe and the liquid outlet pipe are arranged on one side, close to the battery module 2, of the first liquid cooling plate 11.
As shown in fig. 7, the first liquid inlet 113 is connected to the first liquid inlet 111, and the first liquid outlet 114 is connected to the first liquid outlet 112, so as to facilitate liquid inlet and liquid outlet of the first liquid cooling plate 11. By arranging the first liquid inlet pipe 113 and the first liquid outlet pipe 114 outside the accommodating cavity, the convenience of connection with an external pipeline is improved. In addition, through all setting up first feed liquor pipe 113 and first drain pipe 114 in the one side that first liquid cooling board 11 is close to battery module 2, can reduce the risk of colliding with, improve the stability of battery package.
In some embodiments, as shown in fig. 8, the second liquid cooling plate 13 includes a second liquid inlet 131 and a second liquid outlet 132, and the second liquid inlet 131 and the second liquid outlet 132 are disposed on the same side of the second liquid cooling plate 13. The cooling liquid flows in from the second liquid inlet 131 and flows out from the second liquid outlet 132, thereby realizing the circulation of the cooling liquid. The second liquid cooling plate 13 includes a plurality of second flow channels, and the plurality of second flow channels can be connected end to end, and the cooling liquid flows out from the second liquid outlet 132 along the second flow channels connected end to end, so as to achieve the heat dissipation effect.
As shown in fig. 9, in the battery pack according to the embodiment of the present application, the first liquid cooling plate 11, the frame structure 12 and the second liquid cooling plate 13 are sequentially arranged along the first direction Z and connected as a whole. Thereby forming a closed accommodating cavity, and the battery module 2, the integrated busbar 3, the insulating support 4, the heat conduction buffer layer 5 and the heat conduction layer 6 are all positioned in the accommodating cavity.
In a second aspect, embodiments of the present application also provide an energy storage device comprising a battery pack as described above. The energy storage device provided by the embodiment of the application has all the beneficial effects of the battery pack, and is not described herein.
The foregoing has outlined rather broadly the more detailed description of embodiments of the application, wherein the principles and embodiments of the application are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422418772.9U CN223651521U (en) | 2024-09-30 | 2024-09-30 | A battery pack and energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422418772.9U CN223651521U (en) | 2024-09-30 | 2024-09-30 | A battery pack and energy storage device |
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| Publication Number | Publication Date |
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| CN223651521U true CN223651521U (en) | 2025-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202422418772.9U Active CN223651521U (en) | 2024-09-30 | 2024-09-30 | A battery pack and energy storage device |
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| CN (1) | CN223651521U (en) |
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