Battery pack, battery module and energy storage system

Abstract

The utility model provides a battery pack, a battery module and an energy storage system, the battery pack is used for the battery module, and the battery pack comprises a battery body; the end plate is arranged at the end part of the battery body; and the conductive part is arranged on the end plate, is positioned between the end plate and the battery body, is electrically connected with the battery body, and is used for being electrically connected with the conductive part of the adjacent battery pack. As the end plate is arranged at the end part of the battery body, and the conductive piece is integrated on the end plate, that is, the conductive piece is arranged on the inner side of the end plate, that is, the conductive piece is also arranged at the end part of the battery body, when the battery module is assembled, connection wiring between any two adjacent battery packs is facilitated, and the reliability of the battery module is improved; the wiring in the battery module is simplified, the space utilization rate in the battery module is improved, the size of the battery module is favorably reduced, and meanwhile, the assembly efficiency of the battery module is also favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, and in particular, to a battery pack, a battery module and an energy storage system. Background Art

[0002] At present, the battery modules in the related art generally include two battery packs. Among them, the two battery packs need to be connected in series, and the battery packs need to be connected with power lines, etc., resulting in complex internal wiring of the battery module, low space utilization rate, and reduced assembly efficiency. Summary of the Utility Model

[0003] The embodiments of the utility model aim to solve at least one of the technical problems existing in the prior art.

[0004] To this end, in the first aspect of the embodiments of the utility model, a battery pack is provided.

[0005] In the second aspect of the embodiments of the utility model, a battery module is provided.

[0006] In the third aspect of the embodiments of the utility model, an energy storage system is provided.

[0007] In view of this, according to the first aspect of the embodiments of the utility model, a battery pack is provided. The battery pack is used for a battery module, and the battery pack includes: a battery body; an end plate provided at an end of the battery body; and a conductive member provided on the end plate and located between the end plate and the battery body. The conductive member is electrically connected to the battery body and is used for electrically connecting to the conductive member of an adjacent battery pack.

[0008] The battery pack provided by the embodiments of the utility model includes a battery body, an end plate and a conductive member. Specifically, the end plate is provided at an end of the battery body. Optionally, the number of end plates is two, and the two end plates are respectively provided at two opposite ends of the battery body.

[0009] The conductive member is electrically connected to the battery body and is used for electrically connecting to the conductive member of an adjacent battery pack so that any two adjacent battery packs are connected in series. Optionally, the battery module includes a plurality of battery packs, and the plurality of battery packs at least include an adjacent first battery pack and a second battery pack. The conductive member of the first battery pack is electrically connected to the conductive member of the second battery pack to realize the series connection between the first battery pack and the second battery pack.

[0010] The conductive member is disposed on the end plate, and the conductive member is located between the end plate and the battery body. That is to say, the conductive member is disposed on the side of the end plate close to the battery body. Since the end plate is disposed at the end of the battery body, by integrating the conductive member on the end plate, that is, the inner side of the end plate is provided with the conductive member itself. That is to say, the conductive member is also disposed at the end of the battery body. When assembling the battery module, it is convenient for the connection wiring between any two adjacent battery packs, improving the reliability of the battery module, simplifying the wiring in the battery module, improving the space utilization rate in the battery module, facilitating the reduction of the volume of the battery module. At the same time, it is also beneficial to improve the assembly efficiency of the battery module.

[0011] Optionally, the conductive member includes a copper busbar or an aluminum busbar.

[0012] In addition, according to the battery pack provided by the above technical solution of the present invention, the following additional technical features are further provided:

[0013] In some technical solutions, optionally, the conductive member is detachably connected to the end plate.

[0014] In this technical solution, it is defined that the conductive member is detachably connected to the end plate, so that while simplifying the wiring in the battery module and improving the space utilization rate in the battery module, it is convenient to repair or maintain the battery module. That is to say, when the conductive member fails, the conductive member can be detached from the end plate for repair or replacement, which is beneficial to improving the reliability of the battery module, reducing the repair difficulty, improving the assembly efficiency, and reducing the repair cost.

[0015] In some technical solutions, optionally, the end plate is provided with a clamping portion, and the clamping portion can be cooperatively connected or separated from the conductive member.

[0016] In this technical solution, it is defined that the end plate is provided with a clamping portion. Specifically, the clamping portion can be cooperatively connected or separated from the conductive member, which is convenient for the installation and disassembly between the conductive member and the end plate, thereby being beneficial to improving the installation efficiency and disassembly efficiency between the conductive member and the end plate, and further being beneficial to improving the assembly efficiency of the battery module.

[0017] In some technical solutions, optionally, the clamping portion includes a plurality of buckles, and the plurality of buckles are arranged at intervals, and each buckle can be cooperatively connected or separated from the conductive member.

[0018] In this technical solution, it is defined that the snap-on portion includes a plurality of snaps. Specifically, the plurality of snaps are arranged at intervals, and each snap can be connected to or separated from the conductive member. On the one hand, by processing a plurality of snaps on the end plate, the structure is simple and the processing difficulty is low, which is conducive to reducing the manufacturing cost of the battery module. On the other hand, when the conductive member is arranged on the end plate, a plurality of snaps distributed at intervals are connected to the conductive member, which is conducive to improving the connection strength between the conductive member and the end plate, improving the installation stability and reliability of the conductive member, thereby ensuring reliable circuit connection in the battery module and improving the reliability of the battery module.

[0019] In some technical solutions, optionally, the end plate is further provided with a connection port, and a portion of the conductive member is exposed through the connection port.

[0020] In this technical solution, it is defined that the end plate is also provided with a connection port. Specifically, part of the conductive member is exposed through the connection port.

[0021] Since the conductive parts of two adjacent battery packs in the battery module are electrically connected, the two adjacent battery packs are connected in series. By exposing part of the conductive parts through the connection port, the circuit connection between the conductive parts of the two adjacent battery packs is facilitated, unnecessary wiring in the battery module is avoided, the internal circuit connection of the battery module is simplified, the space utilization rate in the battery module is improved, the volume of the battery module is reduced, and it is conducive to miniaturization of the battery module.

[0022] In some technical solutions, optionally, the conductive member is provided with a first connecting portion, and at least a portion of the first connecting portion is embedded in the connecting port and exposed through the connecting port.

[0023] In this technical solution, it is defined that the conductive member is provided with a first connecting portion. Specifically, at least a portion of the first connecting portion is embedded in the connecting port, and the first connecting portion is exposed through the connecting port.

[0024] It is understandable that the first connection portion is used to electrically connect to the first connection portion of the conductive member of the adjacent battery pack to achieve series connection between the two adjacent battery packs. Since the first connection portion is exposed through the connection port, it is convenient to connect the circuit between the two adjacent battery packs, which is beneficial to improving the assembly efficiency of the battery module.

[0025] In addition, since at least part of the first connecting portion is embedded in the connecting port, the conductive member can be limited, thereby improving the assembly stability of the conductive member on the end plate, which is beneficial to ensure reliable circuit connection in the battery module and improve the reliability of the battery module.

[0026] Optionally, a portion of the conductive member protrudes and extends toward a side away from the battery body to form a first connecting portion.

[0027] In some technical solutions, optionally, the conductive member is further provided with a second connection portion; the battery body includes a battery cell assembly and a transfer board, wherein the transfer board is disposed on the battery cell assembly and is electrically connected to the battery cell assembly, and the transfer board is electrically connected to the second connection portion.

[0028] In this technical solution, it is defined that the battery body includes a battery cell assembly and a transfer board. Specifically, the transfer board is disposed on the battery cell assembly, and the transfer board is electrically connected to the battery cell assembly. The conductive member is further provided with a second connection portion, and the second connection portion is electrically connected to the transfer board. That is to say, the conductive member is electrically connected to the transfer board through the second connection portion.

[0029] Optionally, the battery cell assembly includes a plurality of battery cells, and the plurality of battery cells are arranged along the length direction.

[0030] Optionally, a part of the conductive member is bent to form the second connection portion.

[0031] Optionally, the transfer board includes a transfer circuit board.

[0032] In some technical solutions, optionally, the number of end plates is two, and the two end plates are respectively disposed at opposite ends of the battery body. The number of conductive members is two, and each conductive member is disposed on one side of an end plate close to the battery body; the transfer board is provided with a total positive lead-out end and a total negative lead-out end. The total positive lead-out end is electrically connected to the second connection portion of the conductive member on one end plate, and the total negative lead-out end is electrically connected to the second connection portion of the conductive member on the other end plate; wherein, the total positive lead-out end and the total negative lead-out end are located on the same side of the transfer board.

[0033] In this technical solution, it is defined that the number of end plates is two. Specifically, the two end plates are respectively disposed at two opposite ends of the battery body. The number of conductive members is two, and each conductive member is disposed on one side of an end plate close to the battery body. That is to say, the conductive members and the end plates are in one-to-one correspondence.

[0034] The transfer board is provided with a total positive lead-out end and a total negative lead-out end. The total positive lead-out end is electrically connected to the second connection portion of the conductive member on one end plate. That is to say, the conductive member located at the first end of the battery body is electrically connected to the total positive lead-out end of the transfer board through the second connection portion.

[0035] The total negative lead-out end is electrically connected to the second connection portion of the conductive member on the other end plate. That is to say, the conductive member located at the second end of the battery body is electrically connected to the total negative lead-out end of the transfer board through the second connection portion. That is, the total positive lead-out end and the total negative lead-out end are respectively disposed close to the two ends of the battery body.

[0036] The positive main terminal and the negative main terminal are located on the same side of the adapter board. When assembling the battery module, after rotating one of the battery packs by 180°, the positive main terminal of one battery pack and the negative main terminal of another adjacent battery pack are located at the same end of the battery module, which is convenient for wiring, avoids complex wiring inside the battery module, and is beneficial to reducing the production cost of the battery module.

[0037] In some technical solutions, optionally, the conductive member is further provided with a third connecting portion; the end plate is further provided with an avoidance opening, and the third connecting portion is exposed through the avoidance opening, and the third connecting portion is used for connecting the power line of the battery module.

[0038] In this technical solution, it is defined that the conductive member is further provided with a third connecting portion. Specifically, the end plate is further provided with an avoidance opening, and the third connecting portion is exposed through the avoidance opening.

[0039] Since the third connecting portion is used for connecting the power line of the battery module and the third connecting portion is exposed through the avoidance opening, it is convenient for the cooperation connection between the third connecting portion and the power line, avoids unnecessary wiring inside the battery module, and is beneficial to further improving the assembly efficiency of the battery module.

[0040] Optionally, a part of the conductive member is bent to form the third connecting portion.

[0041] In some technical solutions, optionally, the battery pack further includes a plurality of lifting interfaces, and the plurality of lifting interfaces are spaced apart on the end plate, and at least two lifting interfaces are provided on both sides of the end plate.

[0042] In this technical solution, it is defined that the battery pack further includes a plurality of lifting interfaces. It can be understood that during the assembly process of the battery module, lifting can be performed through the lifting interfaces to achieve the rapid assembly of the battery module.

[0043] At least two lifting interfaces are provided on both sides of the end plate. Optionally, the end plate includes a top, a bottom and two side portions, at least one lifting interface is located at the top of the end plate, and at least one lifting interface is located at one of the side portions of the end plate. Or, at least one lifting interface is located at the top of the end plate, and at least one lifting interface is located at the other side portion of the end plate. They are not listed one by one here.

[0044] Since at least two lifting interfaces are located on both sides of the end plate, during the assembly process of the battery module, when multiple battery packs are arranged longitudinally for assembly, at least one of the lifting interfaces can be used for lifting, and when multiple battery packs are arranged horizontally for assembly, at least one of the lifting interfaces on the other side can be used for lifting. That is to say, no matter whether the battery pack is placed upright or sideways, there are suitable lifting interfaces for lifting, so as to meet various assembly methods of the battery module, improve the applicability of the battery module in various environments, and is beneficial to enhancing the product competitiveness.

[0045] In some technical solutions, optionally, the end plate is further provided with a fixing groove; the battery pack further includes a fixing member, the fixing member is sleeved outside the end plate, and a part of the fixing member is located in the fixing groove.

[0046] In this technical solution, it is defined that the battery pack further includes a fixing member. Specifically, the fixing member is sleeved outside the end plate, and a part of the fixing member is embedded in the fixing groove, so as to realize the fixed connection between the end plate and the battery body, and further realize the assembly and fixation of the battery pack.

[0047] Since part of the fixing member is embedded in the fixing groove, it is beneficial to improve the installation reliability of the fixing member, ensure the smooth assembly of the battery module, and further beneficial to improve the assembly efficiency of the battery module.

[0048] Optionally, the number of the fixing members is multiple, and the multiple fixing members are arranged along the height direction of the battery body.

[0049] According to the second aspect of the present invention, a battery module is provided, which includes a plurality of battery packs provided in any of the above technical solutions, and thus has all the beneficial technical effects of the battery pack, which will not be elaborated here.

[0050] Furthermore, the conductive members of any two adjacent battery packs among the plurality of battery packs are electrically connected.

[0051] The battery module provided by the embodiment of the present invention includes a plurality of battery packs. Specifically, the conductive members of any two adjacent battery packs are electrically connected. Optionally, the battery module includes a plurality of battery packs, and the plurality of battery packs at least include an adjacent first battery pack and a second battery pack, and the conductive member of the first battery pack is electrically connected to the conductive member of the second battery pack to realize the series connection between the first battery pack and the second battery pack.

[0052] The conductive member is arranged on the end plate, and the conductive member is located between the end plate and the battery body. That is to say, the conductive member is arranged on the side of the end plate close to the battery body. Since the end plate is arranged at the end of the battery body, by integrating the conductive member on the end plate, that is, the inner side of the end plate is provided with the conductive member by itself. That is to say, the conductive member is also arranged at the end of the battery body. When assembling the battery module, it is convenient for the connection wiring between any two adjacent battery packs, improves the reliability of the battery module, simplifies the wiring in the battery module, improves the space utilization rate in the battery module, is beneficial to reducing the volume of the battery module, and at the same time, is also beneficial to improving the assembly efficiency of the battery module.

[0053] Optionally, the battery module further includes a conductive connecting member, one end of the conductive connecting member is electrically connected to the conductive member of the first battery pack, and the other end of the conductive connecting member is electrically connected to the conductive member of the second battery pack, so as to make two adjacent battery packs in series.

[0054] In addition, the battery module provided by the above technical solution of the present utility model further has the following additional technical features:

[0055] In some technical solutions, optionally, the battery module further includes a bracket and at least one mounting member, wherein the bracket is disposed between any two adjacent battery packs, and at least one mounting member is connected to the bracket, and at least one mounting member is used to connect the end plates of any two adjacent battery packs.

[0056] In this technical solution, it is defined that the battery module further includes a bracket and at least one mounting member. Specifically, the bracket is disposed between any two adjacent battery packs. Optionally, the bracket is an insulating member.

[0057] At least one mounting member is connected to the bracket, and at least one mounting member is used to connect the end plates of two adjacent battery packs to achieve the assembly and fixation between two adjacent battery packs.

[0058] By connecting and fixing at least one mounting member to the bracket, it is beneficial to improve the connection strength between two adjacent end plates, thereby improving the structural stability after the assembly of two adjacent battery packs, and further improving the reliability of the battery module, which is beneficial to extending the service life of the battery module.

[0059] In addition, since at least one mounting member is connected and fixed to the bracket, compared with the case where the mounting member and the bracket are separate structural members respectively, during the assembly process of the battery module, the loss of the mounting member can be avoided, the alignment difficulty between the mounting member and the end plate can be reduced, which is beneficial to improving the assembly efficiency of the battery module.

[0060] In some technical solutions, optionally, at least one mounting member and the bracket are of an integral structure.

[0061] In this technical solution, it is defined that at least one mounting member and the bracket are of an integral structure. It can be understood that the integral structure has good mechanical properties, so it can significantly improve the connection strength between at least one mounting member and the bracket, thereby further improving the structural stability after the assembly of two adjacent battery packs and enhancing the reliability of the battery module.

[0062] In addition, the integral structure is also beneficial to processing and production, which can reduce the manufacturing difficulty, improve the production efficiency, and further be beneficial to reducing the production cost of the battery module.

[0063] Optionally, at least one mounting member and the bracket are an integrally injection-molded part.

[0064] Optionally, the multiple battery packs include an adjacent first battery pack and a second battery pack. Specifically, the bracket is disposed between the first battery pack and the second battery pack.

[0065] An exhaust channel is formed between the side of the first battery pack facing the bracket and the bracket, and the bracket is provided with an air leakage hole, which is connected to the exhaust channel. It can be understood that when the battery cell assembly of the battery pack has thermal runaway, the heat can be dissipated through the exhaust channel and the air leakage hole, which is beneficial to improve the safety of the battery module, extend the service life of the battery module, and improve the reliability of the energy storage system having the battery module.

[0066] Optionally, there are multiple air leakage holes, each of which is connected to the exhaust channel, and the multiple air leakage holes are arranged at intervals.

[0067] Optionally, a support surface is provided on a side of the bracket facing away from the exhaust passage. Specifically, the support surface can support the second battery pack, thereby further improving the structural stability and reliability of the battery module after assembly.

[0068] Optionally, a plurality of aluminum bars are provided on the side of the adapter plate facing the bracket, and the bracket is also provided with a plurality of first avoidance grooves, and at least a portion of each aluminum bar is located in the first avoidance groove. That is to say, a plurality of first avoidance grooves are provided on the bracket to perform structural avoidance for the plurality of aluminum bars, thereby protecting the aluminum bars.

[0069] It can be understood that the multiple aluminum bars correspond one-to-one to the multiple first avoidance grooves.

[0070] Optionally, the battery module also includes a temperature detection element. Specifically, the temperature detection element is arranged on the side of the adapter plate facing the bracket, and the temperature detection element is electrically connected to the adapter plate. It can be understood that the temperature detection element can detect the temperature inside the battery module, and the temperature inside the battery module can be controlled according to the detection result of the temperature detection element to avoid thermal failure of the battery module and extend the service life of the battery module.

[0071] The bracket is also provided with a second avoidance groove, and at least a part of the temperature detection component is located in the second avoidance groove. That is to say, the bracket is also provided with a second avoidance groove to perform structural avoidance for the temperature detection component, thereby being able to protect the temperature detection component.

[0072] Optionally, there are multiple temperature detection components.

[0073] Optionally, the temperature detection element includes an NTC (thermistor).

[0074] Optionally, the battery module also includes a wiring terminal and a communication line. Specifically, the wiring terminal is arranged on the adapter board, and the wiring terminal is electrically connected to the adapter board, one end of the communication line is electrically connected to the wiring terminal, and the second end of the communication line is led out through the wire outlet hole, that is, the wire outlet hole is the lead-out port of the communication line.

[0075] Optionally, at least one mounting member is further provided with a mounting hole. One end of the conductive connecting member passes through the mounting hole and is electrically connected to one of the two adjacent battery packs, and the other end of the conductive connecting member is electrically connected to the other battery pack among the two adjacent battery packs.

[0076] It can be understood that at least one mounting member includes a first mounting member and a second mounting member. When the conductive connecting member passes through the mounting hole on the first mounting member and is electrically connected to the battery pack, the communication line is led out through the wire outlet hole on the second mounting member.

[0077] Optionally, the battery module further includes a plurality of reinforcing ribs. Specifically, a plurality of reinforcing ribs are provided on the side of at least one mounting member facing away from the bracket, which is beneficial to improving the structural strength of at least one mounting member, ensuring reliable connection between any two adjacent end plates, avoiding deformation of at least one mounting member, being beneficial to extending the service life of at least one mounting member, and further improving the structural stability of the battery module.

[0078] A limiting groove is formed between any two adjacent reinforcing ribs, and a part of the conductive connecting member is located in the limiting groove. Thus, while realizing the series connection of any two adjacent battery packs, the conductive connecting member can be limited after installation, improving the installation stability of the conductive connecting member, ensuring a reliable circuit connection between any two adjacent battery packs, and being beneficial to further improving the reliability of the battery module.

[0079] Optionally, the plurality of reinforcing ribs and the mounting member are of an integral structure. That is to say, a part of the mounting member protrudes and extends away from the bracket to form a plurality of reinforcing ribs.

[0080] Optionally, the battery module further includes a plurality of fasteners. Specifically, a plurality of first connection holes are provided on at least one mounting member, and a second connection hole is provided on each end plate.

[0081] The plurality of fasteners respectively pass through the plurality of first connection holes and are connected to the second connection holes on any two adjacent end plates. That is to say, among the plurality of fasteners, at least one fastener respectively passes through the first connection hole and is connected to the second connection hole on one of the two adjacent end plates, and at least one of the remaining fasteners respectively passes through another first connection hole and is connected to the second connection hole on the other end plate, so as to realize the assembly and fixation between any two adjacent battery packs through at least one mounting member.

[0082] The number of the second connection holes is multiple, and the multiple second connection holes are arranged at intervals. That is to say, a plurality of second connection holes are distributed at intervals on the end plate, so that when at least two battery packs are assembled in different ways, such as horizontally or vertically, the fasteners can all pass through the first connection holes and then be connected to the second connection holes on the end plate, which is beneficial to being compatible with different installation methods of the battery module and meeting the use in various environments.

[0083] Optionally, the fastener includes a screw.

[0084] According to the third aspect of the present utility model, an energy storage system is provided, which includes a plurality of battery packs or battery modules provided in any of the above technical solutions, and thus has all the beneficial technical effects of the battery pack or battery module, which will not be elaborated herein.

[0085] The additional aspects and advantages of the present utility model will be given in the following description part, some will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0086] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0087] Figure 1 An exploded view of a battery pack according to an embodiment of the present utility model is shown;

[0088] Figure 2 A schematic structural view of a battery pack according to an embodiment of the present utility model is shown;

[0089] Figure 3 A first schematic structural view of an end plate according to an embodiment of the present utility model is shown;

[0090] Figure 4 A second schematic structural view of an end plate according to an embodiment of the present utility model is shown;

[0091] Figure 5 A first exploded view of a battery module according to an embodiment of the present utility model is shown;

[0092] Figure 6 A first schematic structural view of a battery module according to an embodiment of the present utility model is shown;

[0093] Figure 7 A second schematic structural view of a battery module according to an embodiment of the present utility model is shown;

[0094] Figure 8 A second exploded view of a battery module according to an embodiment of the present utility model is shown;

[0095] Figure 9 A first schematic structural view of a bracket according to an embodiment of the present utility model is shown;

[0096] Figure 10 A second schematic structural view of a bracket according to an embodiment of the present utility model is shown;

[0097] Figure 11 Shows the third schematic structural diagram of the bracket according to an embodiment of the present utility model.

[0098] Wherein, Figures 1 to 11 The corresponding relationship between the reference numerals in the drawings and the component names is as follows:

[0099] 100 Battery pack, 110 Battery body, 111 Battery cell assembly, 112 Adapter board, 113 Total positive lead-out terminal, 114 Total negative lead-out terminal, 115 Aluminum busbar, 120 End plate, 121 Clamping portion, 122 Snap fastener, 123 Connection port, 124 Avoidance port, 125 Fixing groove, 126 Second connection hole, 130 Conductive member, 131 First connection portion, 132 Second connection portion, 133 Third connection portion, 140 Lifting interface, 150 Fixing member, 200 Battery module, 210 Bracket, 211 Vent hole, 212 Support surface, 213 First avoidance groove, 214 Second avoidance groove, 220 Mounting member, 221 Wire outlet hole, 222 Mounting hole, 223 First connection hole, 230 Conductive connection member, 240 Exhaust passage, 250 Temperature detection member, 260 Wiring terminal, 270 Reinforcing rib, 280 Limiting groove, 290 Fastening member, 300 Power line, 310 First snap structure, 320 Card slot, 330 Snap fastener mounting portion. Detailed implementation manners

[0100] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0101] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0102] Next, refer to Figures 1 to 11 to describe the battery pack 100, battery module 200 and energy storage system provided according to some embodiments of the present utility model.

[0103] In an embodiment according to the present application, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a battery pack 100 is proposed. The battery pack 100 is used for a battery module 200. The battery pack 100 includes: a battery body 110; an end plate 120, which is arranged at the end of the battery body 110; a conductive member 130, which is arranged at the end plate 120 and is located between the end plate 120 and the battery body 110. The conductive member 130 is electrically connected to the battery body 110, and the conductive member 130 is used to be electrically connected to the conductive member 130 of an adjacent battery pack 100.

[0104] The battery pack 100 provided in the embodiment of the utility model includes a battery body 110, an end plate 120 and a conductive member 130. Specifically, the end plate 120 is arranged at the end of the battery body 110. Optionally, there are two end plates 120, and the two end plates 120 are respectively arranged at two opposite ends of the battery body 110.

[0105] The conductive member 130 is electrically connected to the battery body 110, and the conductive member 130 is used to electrically connect to the conductive member 130 of the adjacent battery pack 100, so that any two adjacent battery packs 100 are connected in series. Optionally, the battery module 200 includes a plurality of battery packs 100, and the plurality of battery packs 100 include at least a first adjacent battery pack and a second adjacent battery pack, and the conductive member 130 of the first battery pack is electrically connected to the conductive member 130 of the second battery pack, so as to realize the series connection between the first battery pack and the second battery pack.

[0106] The conductive member 130 is disposed on the end plate 120, and the conductive member 130 is located between the end plate 120 and the battery body 110, that is, the conductive member 130 is disposed on the side of the end plate 120 close to the battery body 110. Since the end plate 120 is disposed at the end of the battery body 110, by integrating the conductive member 130 on the end plate 120, that is, the inner side of the end plate 120 is provided with the conductive member 130, that is, the conductive member 130 is also disposed at the end of the battery body 110, when assembling the battery module 200, it is convenient to connect and route any two adjacent battery packs 100, improve the reliability of the battery module 200, simplify the routing within the battery module 200, improve the space utilization within the battery module 200, and help to reduce the volume of the battery module 200. At the same time, it is also helpful to improve the assembly efficiency of the battery module 200.

[0107] Optionally, the conductive member 130 includes a copper bar or an aluminum bar.

[0108] In some embodiments, the conductive member 130 is optionally detachably connected to the end plate 120 .

[0109] In this embodiment, it is defined that the conductive member 130 is detachably connected to the end plate 120, so that while simplifying the wiring inside the battery module 200 and improving the space utilization rate inside the battery module 200, it is convenient to repair or maintain the battery module 200. That is to say, when the conductive member 130 fails, the conductive member 130 can be detached from the end plate 120 for repair or replacement, which is beneficial to improving the reliability of the battery module 200 while reducing the repair difficulty, improving the assembly efficiency, and reducing the repair cost.

[0110] As Figure 3 shown, in some embodiments, optionally, the end plate 120 is provided with a clamping portion 121, and the clamping portion 121 can be cooperatively connected or separated from the conductive member 130.

[0111] In this embodiment, it is defined that the end plate 120 is provided with a clamping portion 121. Specifically, the clamping portion 121 can be cooperatively connected or separated from the conductive member 130, which is convenient for the installation and disassembly between the conductive member 130 and the end plate 120, thereby being beneficial to improving the installation efficiency and disassembly efficiency between the conductive member 130 and the end plate 120, and further being beneficial to improving the assembly efficiency of the battery module 200.

[0112] As Figure 3 shown, in some embodiments, optionally, the clamping portion 121 includes a plurality of buckles 122, the plurality of buckles 122 are arranged at intervals, and each buckle 122 can be cooperatively connected or separated from the conductive member 130.

[0113] In this embodiment, it is defined that the clamping portion 121 includes a plurality of buckles 122. Specifically, the plurality of buckles 122 are arranged at intervals, and each buckle 122 can be connected or separated from the conductive member 130. On the one hand, by processing a plurality of buckles 122 on the end plate 120, the structure is simple and the processing difficulty is low, which is beneficial to reducing the manufacturing cost of the battery module 200. On the other hand, when the conductive member 130 is arranged on the end plate 120, the plurality of buckles 122 distributed at intervals are connected to the conductive member 130, which is beneficial to improving the connection strength between the conductive member 130 and the end plate 120, enhancing the installation stability and reliability of the conductive member 130, and thus being beneficial to ensuring a reliable circuit connection inside the battery module 200 and improving the reliability of the battery module 200.

[0114] As Figure 2 and Figure 3 shown, in some embodiments, optionally, the end plate 120 is further provided with a connection port 123, and a part of the conductive member 130 is exposed through the connection port 123.

[0115] In this embodiment, it is defined that the end plate 120 is further provided with a connection port 123. Specifically, a part of the conductive member 130 is exposed through the connection port 123.

[0116] Since the conductive members 130 of two adjacent battery packs 100 in the battery module 200 are electrically connected, the two adjacent battery packs 100 are connected in series. By exposing part of the conductive members 130 through the connection port 123, the circuit connection between the conductive members 130 of the two adjacent battery packs 100 is facilitated, unnecessary wiring in the battery module 200 is avoided, the internal circuit connection of the battery module 200 is simplified, the space utilization rate in the battery module 200 is improved, and the volume of the battery module 200 is reduced, which is conducive to miniaturization of the battery module 200.

[0117] like Figure 2 and Figure 3 As shown, in some embodiments, optionally, the conductive member 130 is provided with a first connection portion 131 , and at least a portion of the first connection portion 131 is embedded in the connection port 123 and exposed through the connection port 123 .

[0118] In this embodiment, it is defined that the conductive member 130 is provided with a first connection portion 131 . Specifically, at least a portion of the first connection portion 131 is embedded in the connection opening 123 , and the first connection portion 131 is exposed through the connection opening 123 .

[0119] It is understandable that the first connection portion 131 is used to electrically connect to the first connection portion 131 of the conductive member 130 of the adjacent battery pack 100 to achieve the series connection between the two adjacent battery packs 100. Since the first connection portion 131 is exposed through the connection port 123, it is convenient to connect the circuit between the two adjacent battery packs 100, which is conducive to improving the assembly efficiency of the battery module 200.

[0120] In addition, since at least a portion of the first connecting portion 131 is embedded in the connecting port 123 , the conductive member 130 can also be limited, thereby improving the assembly stability of the conductive member 130 on the end plate 120 , thereby facilitating reliable circuit connection within the battery module 200 and improving the reliability of the battery module 200 .

[0121] Optionally, a portion of the conductive member 130 protrudes and extends toward a side away from the battery body 110 to form a first connecting portion 131 .

[0122] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, optionally, the conductive member 130 is further provided with a second connecting portion 132; the battery body 110 includes a battery cell assembly 111 and an adapter plate 112, wherein the adapter plate 112 is provided on the battery cell assembly 111 and is electrically connected to the battery cell assembly 111, and the adapter plate 112 is electrically connected to the second connecting portion 132.

[0123] In this embodiment, it is defined that the battery body 110 includes a battery cell assembly 111 and a transfer board 112. Specifically, the transfer board 112 is disposed on the battery cell assembly 111 and is electrically connected to the battery cell assembly 111. The conductive member 130 is further provided with a second connection portion 132, and the second connection portion 132 is electrically connected to the transfer board 112. That is to say, the conductive member 130 is electrically connected to the transfer board 112 through the second connection portion 132.

[0124] Optionally, the battery cell assembly 111 includes a plurality of battery cells, and the plurality of battery cells are arranged along the length direction.

[0125] Optionally, a part of the conductive member 130 is bent to form the second connection portion 132.

[0126] Optionally, the transfer board 112 includes a transfer circuit board.

[0127] Optionally, a card slot 320 is provided on the transfer board 112, and a first buckle structure 310 is provided on the end plate 120. The first buckle structure 310 can be inserted into the card slot 320 to connect the transfer board 112 to the end plate 120 for fixing the transfer board 112.

[0128] As Figure 1 、 Figure 2 、 Figure 5 and Figure 6 shown, in some embodiments, optionally, the number of end plates 120 is two, and the two end plates 120 are respectively disposed at opposite ends of the battery body 110. The number of conductive members 130 is two, and each conductive member 130 is disposed on one side of an end plate 120 close to the battery body 110; the transfer board 112 is provided with a total positive lead-out end 113 and a total negative lead-out end 114. The total positive lead-out end 113 is electrically connected to the second connection portion 132 of the conductive member 130 on one of the end plates 120, and the total negative lead-out end 114 is electrically connected to the second connection portion 132 of the conductive member 130 on the other end plate 120; wherein, the total positive lead-out end 113 and the total negative lead-out end 114 are located on the same side of the transfer board 112.

[0129] In this embodiment, it is defined that the number of end plates 120 is two. Specifically, the two end plates 120 are respectively disposed at two opposite ends of the battery body 110. The number of conductive members 130 is two, and each conductive member 130 is disposed on one side of an end plate 120 close to the battery body 110. That is to say, the conductive members 130 and the end plates 120 are in one-to-one correspondence.

[0130] The adapter board 112 is provided with a total positive lead-out terminal 113 and a total negative lead-out terminal 114. The total positive lead-out terminal 113 is electrically connected to the second connection portion 132 of the conductive member 130 on one of the end plates 120. That is to say, the conductive member 130 located at the first end of the battery body 110 is electrically connected to the total positive lead-out terminal 113 of the adapter board 112 through the second connection portion 132.

[0131] The total negative lead-out terminal 114 is electrically connected to the second connection portion 132 of the conductive member 130 on the other end plate 120. That is to say, the conductive member 130 located at the second end of the battery body 110 is electrically connected to the total negative lead-out terminal 114 of the adapter board 112 through the second connection portion 132. That is, the total positive lead-out terminal 113 and the total negative lead-out terminal 114 are respectively arranged close to both ends of the battery body 110.

[0132] The total positive lead-out terminal 113 and the total negative lead-out terminal 114 are located on the same side of the adapter board 112. When assembling the battery module 200, after rotating one of the battery packs 100 by 180°, the total positive lead-out terminal 113 of one of the adjacent battery packs 100 and the total negative lead-out terminal 114 of the other battery pack 100 are located at the same end of the battery module 200, which is convenient for wiring, avoids complex wiring inside the battery module 200, and is beneficial to reducing the production cost of the battery module 200.

[0133] As Figure 4 shown, in some embodiments, optionally, the conductive member 130 is further provided with a third connection portion 133; the end plate 120 is further provided with an avoidance opening 124, and the third connection portion 133 is exposed through the avoidance opening 124. The third connection portion 133 is used to connect the power line 300 of the battery module 200.

[0134] In this embodiment, it is defined that the conductive member 130 is further provided with a third connection portion 133. Specifically, the end plate 120 is further provided with an avoidance opening 124, and the third connection portion 133 is exposed through the avoidance opening 124.

[0135] Since the third connection portion 133 is used to connect the power line 300 of the battery module 200 and the third connection portion 133 is exposed through the avoidance opening 124, it is convenient for the third connection portion 133 to be cooperatively connected with the power line 300, avoids unnecessary wiring inside the battery module 200, and is beneficial to further improving the assembly efficiency of the battery module 200.

[0136] Optionally, a part of the conductive member 130 is bent to form the third connection portion 133.

[0137] As Figure 6As shown, the third connection part 133 of the top battery pack 100 is the installation hole for connecting the total positive power aluminum busbar, that is, the third connection part 133 of the top battery pack 100 is used to connect the total positive power line. The third connection part 133 of the bottom battery pack 100 is the installation hole for connecting the total negative power aluminum busbar, that is, the third connection part 133 of the bottom battery pack 100 is used to connect the total negative power line.

[0138] As Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, optionally, the battery pack 100 further includes a plurality of lifting interfaces 140. The plurality of lifting interfaces 140 are spaced apart on the end plate 120, and at least two lifting interfaces 140 are provided on both sides of the end plate 120.

[0139] In this embodiment, it is defined that the battery pack 100 further includes a plurality of lifting interfaces 140. It can be understood that during the assembly process of the battery module 200, lifting can be performed through the lifting interfaces 140 to achieve the rapid assembly of the battery module 200.

[0140] At least two lifting interfaces 140 are provided on both sides of the end plate 120. Optionally, the end plate 120 includes a top, a bottom, and two side parts. At least one lifting interface 140 is located at the top of the end plate 120, and at least one lifting interface 140 is located at one of the side parts of the end plate 120. Or, at least one lifting interface 140 is located at the top of the end plate 120, and at least one lifting interface 140 is located at the other side part of the end plate 120. This is not listed one by one here.

[0141] Since at least two lifting interfaces 140 are located on both sides of the end plate 120, during the assembly process of the battery module 200, when a plurality of battery packs 100 are arranged longitudinally for assembly, at least one of the lifting interfaces 140 can be used for lifting. When a plurality of battery packs 100 are arranged horizontally for assembly, at least one of the lifting interfaces 140 on the other side can be used for lifting. That is to say, no matter whether the battery pack 100 is placed upright or sideways, there is a suitable lifting interface 140 for lifting, so as to meet various assembly methods of the battery module 200, improve the applicability of the battery module 200 in various environments, and be beneficial to improving product competitiveness.

[0142] As Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, optionally, the end plate 120 is further provided with a fixing groove 125; the battery pack 100 further includes a fixing member 150. The fixing member 150 is sleeved outside the end plate 120, and a part of the fixing member 150 is located in the fixing groove 125.

[0143] In this embodiment, it is defined that the battery pack 100 further includes a fixing member 150. Specifically, the fixing member 150 is sleeved outside the end plate 120, and a part of the fixing member 150 is embedded in the fixing groove 125, so as to realize the fixed connection between the end plate 120 and the battery body 110, and further realize the assembly and fixation of the battery pack 100.

[0144] Since part of the fixing member 150 is embedded in the fixing groove 125, it is beneficial to improve the installation reliability of the fixing member 150, ensure the smooth assembly of the battery module 200, and further beneficial to improve the assembly efficiency of the battery module 200.

[0145] Optionally, the number of the fixing members 150 is multiple, and the multiple fixing members 150 are arranged along the height direction of the battery body 110.

[0146] According to the second aspect of the present invention, there is provided a battery module 200, which includes a plurality of battery packs 100 as provided in any of the above embodiments, and thus has all the beneficial technical effects of the battery pack 100, which will not be elaborated here.

[0147] As Figure 6 、 Figure 7 and Figure 8 shown, further, the conductive members 130 of any two adjacent battery packs 100 among the plurality of battery packs 100 are electrically connected.

[0148] The battery module 200 provided by the embodiment of the present invention includes a plurality of battery packs 100. Specifically, the conductive members 130 of any two adjacent battery packs 100 are electrically connected. Optionally, the battery module 200 includes a plurality of battery packs 100, and the plurality of battery packs 100 at least include an adjacent first battery pack and a second battery pack, and the conductive member 130 of the first battery pack is electrically connected to the conductive member 130 of the second battery pack to realize the series connection between the first battery pack and the second battery pack.

[0149] The conductive member 130 is arranged on the end plate 120, and the conductive member 130 is located between the end plate 120 and the battery body 110. That is to say, the conductive member 130 is arranged on the side of the end plate 120 close to the battery body 110. Since the end plate 120 is arranged at the end of the battery body 110, by integrating the conductive member 130 on the end plate 120, that is, the inner side of the end plate 120 is provided with the conductive member 130 by itself, that is to say, the conductive member 130 is also arranged at the end of the battery body 110. When assembling the battery module 200, it is convenient for the connection wiring between any two adjacent battery packs 100, improves the reliability of the battery module 200, simplifies the wiring in the battery module 200, improves the space utilization rate in the battery module 200, is beneficial to reducing the volume of the battery module 200, and at the same time, is also beneficial to improving the assembly efficiency of the battery module 200.

[0150] Optionally, the battery module 200 further includes a conductive connection member 230. One end of the conductive connection member 230 is electrically connected to the conductive member 130 of the first battery pack, and the other end of the conductive connection member 230 is electrically connected to the conductive member 130 of the second battery pack, so that two adjacent battery packs 100 are connected in series.

[0151] As Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown in

[0152] In this embodiment, it is defined that the battery module 200 further includes a bracket 210 and at least one mounting member 220. Specifically, the bracket 210 is disposed between any two adjacent battery packs 100. Optionally, the bracket 210 is an insulating member.

[0153] At least one mounting member 220 is connected to the bracket 210, and at least one mounting member 220 is used to connect the end plates 120 of two adjacent battery packs 100 to achieve the assembly and fixation between two adjacent battery packs 100.

[0154] By connecting and fixing at least one mounting member 220 to the bracket 210, it is beneficial to improve the connection strength between two adjacent end plates 120, thereby improving the structural stability of two adjacent battery packs 100 after assembly, and further improving the reliability of the battery module 200, which is beneficial to extending the service life of the battery module 200.

[0155] In addition, since at least one mounting member 220 is connected and fixed to the bracket 210, compared with the case where the mounting member 220 and the bracket 210 are separate structural members, during the assembly process of the battery module 200, the loss of the mounting member 220 can be avoided, and the alignment difficulty between the mounting member 220 and the end plate 120 can be reduced, which is beneficial to improving the assembly efficiency of the battery module 200.

[0156] In some embodiments, optionally, at least one mounting member 220 and the bracket 210 are an integral structure.

[0157] In this embodiment, at least one mounting member 220 and the bracket 210 are defined as an integral structure. It can be understood that the integral structure has good mechanical properties, so that the connection strength between at least one mounting member 220 and the bracket 210 can be significantly improved, thereby further enhancing the structural stability after the assembly of two adjacent battery packs 100 and improving the reliability of the battery module 200.

[0158] In addition, the integral structure is also beneficial to processing and production, which can reduce the manufacturing difficulty, improve the production efficiency, and thus is beneficial to reducing the production cost of the battery module 200.

[0159] Optionally, at least one mounting member 220 and the bracket 210 are integrally injection-molded parts.

[0160] As Figure 6 shown, optionally, the multiple battery packs 100 include an adjacent first battery pack and a second battery pack. Specifically, the bracket 210 is disposed between the first battery pack and the second battery pack.

[0161] An exhaust passage 240 is formed between one side of the first battery pack facing the bracket 210 and the bracket 210. The bracket 210 is provided with a vent hole 211, and the vent hole 211 is communicated with the exhaust passage 240. It can be understood that when the battery cell assembly 111 of the battery pack 100 undergoes a thermal runaway, heat can be dissipated through the exhaust passage 240 and the vent hole 211, which is beneficial to improving the use safety of the battery module 200, extending the service life of the battery module 200, and enhancing the reliability of the energy storage system having the battery module 200.

[0162] Optionally, the number of the vent holes 211 is multiple, each vent hole 211 is communicated with the exhaust passage 240, and the multiple vent holes 211 are arranged at intervals.

[0163] As Figure 5 shown, optionally, a support surface 212 is disposed on one side of the bracket 210 facing away from the exhaust passage 240. Specifically, the support surface 212 can support the second battery pack, thereby further enhancing the structural stability and reliability after the assembly of the battery module 200.

[0164] As Figure 5 and Figure 9 shown, optionally, a plurality of aluminum bars 115 are disposed on one side of the adapter plate 112 facing the bracket 210. The bracket 210 is further provided with a plurality of first avoidance grooves 213, and at least a part of each aluminum bar 115 is located in the first avoidance groove 213. That is to say, a plurality of first avoidance grooves 213 are provided on the bracket 210 to perform structural avoidance on the plurality of aluminum bars 115, so as to play a role in protecting the aluminum bars 115.

[0165] It can be understood that the multiple aluminum rows 115 correspond to the multiple first avoidance grooves 213 one by one.

[0166] As Figure 5 and Figure 10 shown, optionally, the battery module 200 further includes a temperature detection component 250. Specifically, the temperature detection component 250 is arranged on the side of the adapter plate 112 facing the bracket 210, and the temperature detection component 250 is electrically connected to the adapter plate 112. It can be understood that the temperature detection component 250 can detect the temperature inside the battery module 200, and the temperature inside the battery module 200 can be controlled according to the detection result of the temperature detection component 250, avoiding thermal failures of the battery module 200 and extending the service life of the battery module 200.

[0167] The bracket 210 is further provided with a second avoidance groove 214, and at least a part of the temperature detection component 250 is located in the second avoidance groove 214. That is to say, the bracket 210 is further provided with the second avoidance groove 214 to structurally avoid the temperature detection component 250, thereby playing a role in protecting the temperature detection component 250.

[0168] Optionally, the number of the temperature detection components 250 is multiple.

[0169] Optionally, the temperature detection component 250 includes an NTC (negative temperature coefficient thermistor).

[0170] As Figure 5 and Figure 11 shown, optionally, the battery module 200 further includes a wiring terminal 260 and a communication line. Specifically, the wiring terminal 260 is arranged on the adapter plate 112, and the wiring terminal 260 is electrically connected to the adapter plate 112. One end of the communication line is electrically connected to the wiring terminal 260, and the second end of the communication line is led out through the wire outlet hole 221. That is to say, the wire outlet hole 221 is the lead-out port of the communication line.

[0171] As Figure 11 shown, optionally, at least one mounting member 220 is further provided with a mounting hole 222. One end of the conductive connecting member 230 passes through the mounting hole 222 and is electrically connected to one of the adjacent two battery packs 100, and the other end of the conductive connecting member 230 is electrically connected to the other battery pack 100 among the adjacent two battery packs 100.

[0172] It can be understood that at least one mounting member 220 includes a first mounting member and a second mounting member. When the conductive connecting member 230 passes through the mounting hole 222 on the first mounting member and is electrically connected to the battery pack 100, the communication line is led out through the wire outlet hole 221 on the second mounting member.

[0173] As Figure 11As shown, optionally, the battery module 200 further includes a plurality of reinforcing ribs 270. Specifically, a plurality of reinforcing ribs 270 are provided on a side of at least one mounting member 220 facing away from the bracket 210, which is beneficial to improving the structural strength of at least one mounting member 220, ensuring reliable connection between any two adjacent end plates 120, avoiding deformation of at least one mounting member 220, being beneficial to extending the service life of at least one mounting member 220, and further improving the structural stability of the battery module 200.

[0174] A limiting groove 280 is formed between any two adjacent reinforcing ribs 270, and a part of the conductive connecting member 230 is located in the limiting groove 280, so that while realizing the series connection of any two adjacent battery packs 100, the conductive connecting member 230 can be limited after installation, improving the installation stability of the conductive connecting member 230, ensuring reliable electrical connection between any two adjacent battery packs 100, and being beneficial to further improving the reliability of the battery module 200.

[0175] Optionally, the plurality of reinforcing ribs 270 and the mounting member 220 are of an integral structure. That is to say, a part of the mounting member 220 protrudes and extends towards a side away from the bracket 210 to form a plurality of reinforcing ribs 270.

[0176] As Figure 5 and Figure 11 As shown, optionally, the battery module 200 further includes a plurality of fasteners 290. Specifically, a plurality of first connection holes 223 are provided on at least one mounting member 220, and a second connection hole 126 is provided on each end plate 120.

[0177] The plurality of fasteners 290 respectively pass through the plurality of first connection holes 223 and are connected to the second connection holes 126 on any two adjacent end plates 120. That is to say, among the plurality of fasteners 290, at least one fastener 290 respectively passes through the first connection hole 223 and is connected to the second connection hole 126 on one of the two adjacent end plates 120, and at least one of the remaining fasteners 290 respectively passes through another first connection hole 223 and is connected to the second connection hole 126 on the other end plate 120, so as to realize the assembly and fixation between any two adjacent battery packs 100 through at least one mounting member 220.

[0178] The number of the second connection holes 126 is multiple, and the multiple second connection holes 126 are arranged at intervals. That is to say, a plurality of second connection holes 126 are distributed at intervals on the end plate 120, so that when at least two battery packs 100 are assembled in different ways, such as horizontally or vertically, the fasteners 290 can pass through the first connection holes 223 and be connected to the second connection holes 126 on the end plate 120, which is beneficial to being compatible with different installation methods of the battery module 200 and meeting the use in various environments.

[0179] Optionally, the fastener 290 includes a screw.

[0180] Optionally, a snap mounting portion 330 is further provided on the end plate 120. The snap mounting portion 330 is used to mount a second snap structure, and the second snap structure is used to fix the wire harness (such as a communication line, etc.) led out from the battery pack 100, so as to avoid the wire harness being distributed in a messy manner and improve the reliability of the battery module 200.

[0181] According to the third aspect of the present invention, an energy storage system is provided, which includes a plurality of battery packs 100 or battery modules 200 provided in any of the above technical solutions, and thus has all the beneficial technical effects of the battery pack 100 or the battery module 200, which will not be elaborated herein.

[0182] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0183] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0184] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery pack, characterized in that: The battery pack is used for a battery module, and the battery pack includes: Battery body; An end plate, disposed at an end of the battery body; A conductive member is provided on the end plate and is located between the end plate and the battery body. The conductive member is electrically connected to the battery body and is used to be electrically connected to the conductive member of the adjacent battery pack.

2. The battery pack according to claim 1, characterized in that: The conductive member is detachably connected to the end plate.

3. The battery pack according to claim 1, characterized in that: The end plate is provided with a clamping portion, and the clamping portion can be connected or separated with the conductive member.

4. The battery pack according to claim 3, characterized in that: The clamping portion includes a plurality of buckles, which are arranged at intervals, and each of the buckles can be connected or separated with the conductive member.

5. The battery pack according to any one of claims 1 to 4, characterized in that: The end plate is also provided with a connection port, and a portion of the conductive member is exposed through the connection port.

6. The battery pack according to claim 5, characterized in that: The conductive member is provided with a first connecting portion, at least a portion of which is embedded in the connecting port and exposed through the connecting port.

7. The battery pack according to any one of claims 1 to 4, characterized in that: The conductive member is further provided with a second connecting portion; The battery body comprises: Battery cell components; The adapter plate is provided on the battery cell assembly and is electrically connected to the battery cell assembly. The adapter plate is electrically connected to the second connection portion.

8. The battery pack according to claim 7, characterized in that: There are two end plates, which are respectively arranged at two opposite ends of the battery body; there are two conductive members, each of which is arranged on one side of the end plate close to the battery body; The adapter plate is provided with a total positive lead-out terminal and a total negative lead-out terminal, the total positive lead-out terminal is electrically connected to the second connecting portion of the conductive member on one of the end plates, and the total negative lead-out terminal is electrically connected to the second connecting portion of the conductive member on the other end plate; Wherein, the total positive lead-out terminal and the total negative lead-out terminal are located on the same side of the adapter board.

9. The battery pack according to any one of claims 1 to 4, characterized in that: The conductive member is further provided with a third connecting portion; The end plate is also provided with an escape opening, through which the third connection portion is exposed, and the third connection portion is used to connect the power line of the battery module.

10. The battery pack according to any one of claims 1 to 4, characterized in that: Also includes: A plurality of lifting interfaces are arranged at intervals on the end plate, and at least two of the lifting interfaces are arranged on both sides of the end plate.

11. The battery pack according to any one of claims 1 to 4, characterized in that: The end plate is also provided with a fixing groove; The battery pack further comprises: A fixing member is sleeved on the outer side of the end plate, and a part of the fixing member is located in the fixing groove.

12. A battery module, characterized in that: include: A plurality of battery packs according to any one of claims 1 to 11, wherein the conductive members of any two adjacent battery packs among the plurality of battery packs are electrically connected.

13. The battery module according to claim 12, characterized in that: Also includes: A bracket, arranged between any two adjacent battery packs; At least one mounting member is connected to the bracket, and at least one mounting member is used to connect the end plates of any two adjacent battery packs.

14. The battery module according to claim 13, characterized in that: At least one of the mounting members is an integral structure with the bracket.

15. An energy storage system, characterized in that: include: The battery pack according to any one of claims 1 to 11; or The battery module according to any one of claims 12 to 14.

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