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 multiple hoisting connectors are arranged on the end plate at intervals, and at least two hoisting connectors are located on the two sides of the end plate correspondingly. In other words, no matter whether the battery pack is positively placed or laterally placed, the proper hoisting interfaces are used for hoisting, so that one end plate can be compatible with different modes of the battery module, namely, one end plate can meet various assembly modes of the battery module, the applicability of the battery module in various environments is improved, the production cost of the battery module is reduced, and the production efficiency of the battery module is improved. And the product competitiveness can be 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] Currently, the battery modules in related technologies include two battery packs, and each battery pack includes an end plate structure arranged at the end. Since generally only one lifting port is arranged on the end plate structure, the two battery packs with such end plate structures can only be applicable to one assembly method and cannot meet the use in multiple environments. 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] Therefore, 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 includes: a battery body; an end plate arranged at the end of the battery body; and a plurality of lifting interfaces which are spacedly arranged on the end plate, and at least two lifting interfaces are respectively located on both sides of the end plate.

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

[0009] It can be understood that during the assembly process of the battery module, lifting can be carried out through the lifting interfaces to achieve the rapid assembly of the battery module.

[0010] At least two lifting interfaces are respectively arranged on both sides of the end plate. Optionally, the end plate includes a top, a bottom and two side parts. 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 parts 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 part of the end plate. That is to say, at least two lifting interfaces are respectively located on two adjacent sides 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 bottom of the end plate. Or, at least one lifting interface is located at the bottom of the end plate, and at least one lifting interface is located at one of the side parts of the end plate. Details are not listed one by one here.

[0011] Since at least two lifting interfaces are respectively 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. 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 is a suitable lifting interface for lifting, so that one type of end plate can be compatible with different ways of the battery module, that is, one type of end plate can meet multiple assembly methods of the battery module, improve the applicability of the battery module in various environments, reduce the production cost of the battery module, and is conducive to enhancing the product competitiveness.

[0012] Optionally, the battery body includes a battery cell assembly and a circuit board. The circuit board is disposed on the battery cell assembly and is electrically connected to the battery cell assembly.

[0013] Optionally, the battery pack further includes a copper-aluminum row. The copper-aluminum row is disposed on the end plate and is located between the end plate and the battery body. That is to say, the copper-aluminum row 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 copper-aluminum row on the end plate, that is, the inner side of the end plate is provided with the copper-aluminum row by itself. That is to say, the copper-aluminum row is also disposed at the end of the battery body. During the assembly of 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 inside the battery module, improves the space utilization rate inside the battery module, is conducive to reducing the volume of the battery module, and at the same time, is also conducive to improving the assembly efficiency of the battery module.

[0014] Wherein, the copper-aluminum row is electrically connected to the circuit board.

[0015] In addition, the battery pack provided by the above technical solution of the present invention further has the following additional technical features:

[0016] In some technical solutions, optionally, the multiple lifting interfaces include a first interface and a second interface. The first interface and the second interface are respectively located on adjacent sides of the end plate.

[0017] In this technical solution, it is defined that the multiple lifting interfaces include a first interface and a second interface. Specifically, the first interface and the second interface are respectively located on adjacent sides of the end plate. Optionally, the first interface is located at the top of the end plate, and the second interface is located on one side of the end plate. Or, the first interface is located at the top of the end plate, and the second interface is located on the other side of the end plate. It can be specifically set according to actual needs.

[0018] Since the first interface and the second interface are respectively located on two adjacent sides of the end plate, when multiple battery packs are arranged longitudinally, the battery packs are placed upright, with the first interface at the top, and they can be lifted through the first interface. When multiple battery packs are arranged horizontally, the battery packs are placed sideways, with the second interface at the top, and they can be lifted through the second interface. That is to say, whether the battery packs are placed upright or sideways, there is a suitable lifting interface for lifting, so that one type of end plate can be compatible with different ways of the battery module, that is, one type of end plate can meet multiple assembly methods of the battery module, improve the applicability of the battery module in various environments, reduce the production cost of the battery module, and is conducive to enhancing the product competitiveness.

[0019] In some technical solutions, optionally, the multiple lifting interfaces further include a third interface, and the third interface and the second interface are respectively located on two opposite sides of the end plate.

[0020] In this technical solution, it is defined that the multiple lifting interfaces further include a third interface. Specifically, the third interface and the second interface are respectively located on two opposite sides of the end plate. Optionally, the first interface is located at the top of the end plate, the second interface is located at one side of the end plate, and the third interface is located at the other side of the end plate.

[0021] When multiple battery packs are arranged longitudinally, the battery packs are placed upright, with the first interface at the top, and they can be lifted through the first interface. When multiple battery packs are arranged horizontally, the battery packs are placed sideways by rotating to the left, with the second interface at the top, and they can be lifted through the second interface. When multiple battery packs are arranged horizontally, the battery packs are placed sideways by rotating to the right, with the third interface at the top, and they can be lifted through the third interface, so that one type of end plate can meet multiple assembly methods of the battery module, further improve the applicability of the battery module in various environments, reduce the production cost of the battery module, and improve the assembly efficiency.

[0022] In some technical solutions, optionally, the third interface and the second interface are symmetrically distributed on two opposite sides of the end plate.

[0023] In this technical solution, it is defined that the third interface and the second interface are symmetrically arranged. Thus, when assembling the battery packs, due to the left-right symmetry of the end plate, an anti-fooling effect can be achieved, which is conducive to improving the assembly efficiency of the battery packs.

[0024] Moreover, since the third interface and the second interface are symmetrically arranged, it is also conducive to simplifying the mold structure, thereby reducing the production cost of the battery packs.

[0025] In some technical solutions, optionally, the second interface includes a first lifting slot and a second lifting slot, and the slot openings of the first lifting slot and the second lifting slot are opposite to each other.

[0026] In this technical solution, it is defined that the second interface includes a first lifting slot and a second lifting slot. Specifically, the slot openings of the first lifting slot and the second lifting slot face each other, so that the first lifting slot and the second lifting slot can be used for lifting simultaneously, improving the balance and stability of the battery pack during the lifting process, and being conducive to further improving the assembly efficiency of the battery module.

[0027] In some technical solutions, optionally, at least one lifting interface is arranged close to the outer edge of the end plate.

[0028] In this technical solution, it is defined that at least one lifting interface is arranged close to the outer edge of the end plate. It can be understood that the position near the middle of the end plate generally needs to be electrically connected to achieve the series connection of two adjacent battery packs and the extraction of communication lines, etc. Arranging the lifting interface close to the outer edge of the end plate can avoid damage caused by accidentally touching the electrical connection structure during the assembly by lifting, resulting in battery pack failures, ensuring the reliability of the assembled battery module while improving the assembly efficiency.

[0029] According to the second aspect of the present utility model, there is provided a battery module, including a plurality of battery packs provided in any of the above technical solutions, thus having all the beneficial technical effects of this battery pack, which will not be elaborated herein.

[0030] In addition, the battery pack provided according to the above technical solution of the present utility model further has the following additional technical features:

[0031] In some technical solutions, optionally, the battery module further includes a bracket and at least one mounting member. Among them, the bracket is 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.

[0032] 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 arranged between any two adjacent battery packs. Optionally, the bracket is an insulating member.

[0033] 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.

[0034] 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 of two adjacent battery packs after assembly, further improving the reliability of the battery module, and being conducive to extending the service life of the battery module.

[0035] In addition, since at least one mounting member is fixedly connected 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.

[0036] In some technical solutions, optionally, at least one mounting member and the bracket are of an integral structure.

[0037] 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 the connection strength between at least one mounting member and the bracket can be significantly improved, thereby further enhancing the structural stability after the assembly of two adjacent battery packs and improving the reliability of the battery module.

[0038] In addition, the integral structure is also beneficial to processing and production, which can reduce the manufacturing difficulty, improve the production efficiency, and further help reduce the production cost of the battery module.

[0039] Optionally, at least one mounting member and the bracket are an integrally injection-molded part.

[0040] According to the third aspect of the present invention, an energy storage system is provided, including the battery pack or battery module provided in any of the above technical solutions, so it has all the beneficial technical effects of the battery pack or battery module, which will not be elaborated here.

[0041] The additional aspects and advantages of the present invention will be given in the following description part, some of which will become obvious from the following description, or can be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0043] Figure 1 An exploded view of a battery pack according to an embodiment of the present invention is shown;

[0044] Figure 2 A schematic structural diagram of a battery pack according to an embodiment of the present invention is shown;

[0045] Figure 3 A first schematic structural diagram of an end plate according to an embodiment of the present invention is shown;

[0046] Figure 4 A second schematic structural diagram of an end plate according to an embodiment of the present invention is shown;

[0047] Figure 5Shows one of the exploded views of a battery module according to an embodiment of the present utility model;

[0048] Figure 6 Shows one of the structural schematic diagrams of a battery module according to an embodiment of the present utility model;

[0049] Figure 7 Shows a second structural schematic diagram of a battery module according to an embodiment of the present utility model;

[0050] Figure 8 Shows a second exploded view of a battery module according to an embodiment of the present utility model;

[0051] Figure 9 Shows one of the structural schematic diagrams of a bracket according to an embodiment of the present utility model;

[0052] Figure 10 Shows a second structural schematic diagram of a bracket according to an embodiment of the present utility model;

[0053] Figure 11 Shows a third structural schematic diagram of a bracket according to an embodiment of the present utility model.

[0054] Among them, Figures 1 to 11 The corresponding relationship between the reference numerals and the component names in the figures is as follows:

[0055] 100 battery pack, 110 battery body, 111 battery cell assembly, 112 circuit board, 120 end plate, 130 lifting interface, 131 first interface, 132 second interface, 133 third interface, 134 first lifting groove, 135 second lifting groove, 140 copper-aluminum busbar, 200 battery module, 210 bracket, 220 mounting part. Detailed implementation manners

[0056] In order to be able 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 accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0057] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can 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.

[0058] The following will describe Figures 1 to 11 the battery pack 100, the battery module 200 and the energy storage system provided according to some embodiments of the present utility model.

[0059] In one embodiment according to the present application, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 shown, a battery pack 100 is proposed. The battery pack 100 is for a battery module 200. The battery pack 100 includes: a battery body 110; an end plate 120 provided at an end of the battery body 110; and a plurality of lifting interfaces 130. The plurality of lifting interfaces 130 are spaced apart and provided on the end plate 120, and at least two lifting interfaces 130 are respectively located on both sides of the end plate 120.

[0060] The battery pack 100 provided by the embodiment of the present utility model includes a battery body 110, an end plate 120, and a plurality of lifting interfaces 130. Specifically, the end plate 120 is provided at an end of the battery body 110. Optionally, the number of end plates 120 is two, and the two end plates 120 are respectively provided at two opposite ends of the battery body 110.

[0061] It can be understood that during the assembly process of the battery module 200, lifting can be performed through the lifting interfaces 130 to achieve the rapid assembly of the battery module 200.

[0062] At least two lifting interfaces 130 are respectively provided on both sides of the end plate 120. Optionally, the end plate 120 includes a top, a bottom, and two side portions. At least one lifting interface 130 is located at the top of the end plate 120, and at least one lifting interface 130 is located at one of the side portions of the end plate 120. Or, at least one lifting interface 130 is located at the top of the end plate 120, and at least one lifting interface 130 is located at the other side portion of the end plate 120. That is to say, at least two lifting interfaces 130 are respectively located on two adjacent sides of the end plate 120. Or, at least one lifting interface 130 is located at the top of the end plate 120, and at least one lifting interface 130 is located at the bottom of the end plate 120. Or, at least one lifting interface 130 is located at the bottom of the end plate 120, and at least one lifting interface 130 is located at one of the side portions of the end plate 120. These are not listed one by one here.

[0063] Since at least two lifting interfaces 130 are respectively located on both sides of the end plate 120, during the assembly of the battery module 200, when multiple battery packs 100 are arranged longitudinally for assembly, at least one of the lifting interfaces 130 can be used for lifting, and when multiple battery packs 100 are arranged horizontally for assembly, at least one lifting interface 130 on the other side can be used for lifting. In other words, no matter whether the battery pack 100 is placed upright or sideways, there is a suitable lifting interface 130 for lifting, so that one end plate 120 can be compatible with different modes of battery modules 200, that is, one end plate 120 can meet multiple assembly modes of the battery module 200, thereby improving the applicability of the battery module 200 in various environments, reducing the production cost of the battery module 200, and helping to improve product competitiveness.

[0064] Optionally, the battery body 110 includes a battery cell assembly 111 and a circuit board 112 , wherein the circuit board 112 is disposed on the battery cell assembly 111 , and the circuit board 112 is electrically connected to the battery cell assembly 111 .

[0065] Optionally, the battery pack 100 further includes a copper-aluminum bar 140, which is disposed on the end plate 120 and is located between the end plate 120 and the battery body 110, that is, the copper-aluminum bar 140 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 copper-aluminum bar 140 on the end plate 120, that is, the inner side of the end plate 120 is provided with the copper-aluminum bar 140, that is, the copper-aluminum bar 140 is also disposed at the end of the battery body 110, when assembling the battery module 200, it is convenient to connect and route between 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.

[0066] The copper-aluminum busbar 140 is electrically connected to the circuit board 112 .

[0067] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, optionally, the plurality of lifting interfaces 130 include a first interface 131 and a second interface 132 , and the first interface 131 and the second interface 132 are respectively located on two adjacent sides of the end plate 120 .

[0068] In this embodiment, it is defined that a plurality of lifting interfaces 130 include a first interface 131 and a second interface 132. Specifically, the first interface 131 and the second interface 132 are respectively located on two adjacent sides of the end plate 120. Optionally, the first interface 131 is located at the top of the end plate 120, and the second interface 132 is located at one of the side portions of the end plate 120. Or, the first interface 131 is located at the top of the end plate 120, and the second interface 132 is located at the other side portion of the end plate 120. Specifically, it can be set according to actual needs.

[0069] Since the first interface 131 and the second interface 132 are respectively located on two adjacent sides of the end plate 120, when a plurality of battery packs 100 are arranged longitudinally, the battery packs 100 are placed upright, the first interface 131 is at the top, and lifting can be performed through the first interface 131. When a plurality of battery packs 100 are arranged horizontally, the battery packs 100 are placed sideways, the second interface 132 is at the top, and lifting can be performed through the second interface 132. That is to say, regardless of whether the battery packs 100 are placed upright or sideways, there is a suitable lifting interface 130 for lifting, so that one type of end plate 120 can be compatible with different ways of the battery module 200, that is, one type of end plate 120 can meet various assembly methods of the battery module 200, improve the applicability of the battery module 200 in various environments, reduce the production cost of the battery module 200, and is beneficial to improving product competitiveness.

[0070] As Figure 1 and Figure 3 shown, in some embodiments, optionally, the plurality of lifting interfaces 130 further include a third interface 133, and the third interface 133 and the second interface 132 are respectively located on two opposite sides of the end plate 120.

[0071] In this embodiment, it is defined that the plurality of lifting interfaces 130 further include a third interface 133. Specifically, the third interface 133 and the second interface 132 are respectively located on two opposite sides of the end plate 120. Optionally, the first interface 131 is located at the top of the end plate 120, the second interface 132 is located at one of the side portions of the end plate 120, and the third interface 133 is located at the other side portion of the end plate 120.

[0072] When multiple battery packs 100 are arranged longitudinally, the battery packs 100 are placed upright, and the first interface 131 is located at the top, enabling hoisting through the first interface 131. When multiple battery packs 100 are arranged horizontally, the battery packs 100 are placed horizontally on their sides after rotating to the left, and the second interface 132 is located at the top, enabling hoisting through the second interface 132. When multiple battery packs 100 are arranged horizontally, the battery packs 100 are placed horizontally on their sides after rotating to the right, and the third interface 133 is located at the top, enabling hoisting through the third interface 133. In this way, one type of end plate 120 can meet various assembly methods of the battery module 200, further enhancing the applicability of the battery module 200 in various environments, reducing the production cost of the battery module 200, and improving the assembly efficiency.

[0073] In some embodiments, optionally, the third interface 133 and the second interface 132 are symmetrically distributed on opposite sides of the end plate 120.

[0074] In this embodiment, it is defined that the third interface 133 and the second interface 132 are symmetrically arranged. Thus, when assembling the battery pack 100, due to the left-right symmetry of the end plate 120, an anti-fooling effect can be achieved, which is beneficial to improving the assembly efficiency of the battery pack 100.

[0075] Moreover, due to the symmetric arrangement of the third interface 133 and the second interface 132, it is also beneficial to simplify the mold structure, thereby reducing the production cost of the battery pack 100.

[0076] As Figure 3 shown, in some embodiments, optionally, the second interface 132 includes a first hoisting groove 134 and a second hoisting groove 135, and the openings of the first hoisting groove 134 and the second hoisting groove 135 face each other.

[0077] In this embodiment, it is defined that the second interface 132 includes a first hoisting groove 134 and a second hoisting groove 135. Specifically, the openings of the first hoisting groove 134 and the second hoisting groove 135 face each other, so that hoisting can be carried out simultaneously using the first hoisting groove 134 and the second hoisting groove 135, improving the balance and stability of the battery pack 100 during hoisting, and being beneficial to further improving the assembly efficiency of the battery module 200.

[0078] In some embodiments, optionally, at least one hoisting interface 130 is arranged close to the outer edge of the end plate 120.

[0079] In this embodiment, it is defined that at least one lifting interface 130 is arranged near the outer edge of the end plate 120. It can be understood that the position near the middle of the end plate 120 generally needs to be electrically connected to realize the series connection of two adjacent battery packs 100 and the lead-out of communication lines, etc. By arranging the lifting interface 130 near the outer edge of the end plate 120, it is avoided that during the assembly process of lifting, damage is caused due to accidental contact with the electrical connection structure, resulting in the failure of the battery pack 100. While improving the assembly efficiency, the reliability of the battery module 200 after assembly is ensured.

[0080] According to the second aspect of the present invention, there is provided a battery module 200, including a plurality of battery packs 100 provided in any of the above embodiments, and thus having all the beneficial technical effects of the battery pack 100, which will not be elaborated herein.

[0081] As Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown in

[0082] 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 arranged between any two adjacent battery packs 100. Optionally, the bracket 210 is an insulating member.

[0083] 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 realize the assembly and fixation between two adjacent battery packs 100.

[0084] 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.

[0085] In addition, since at least one mounting member 220 is fixedly connected to the bracket 210, compared with the case where the mounting member 220 and the bracket 210 are separate structural members respectively, during the assembly process of the battery module 200, loss of the mounting member 220 can be avoided, 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.

[0086] In some embodiments, optionally, at least one mounting member 220 and the bracket 210 are of an integral structure.

[0087] In this embodiment, it is defined that at least one mounting member 220 and the bracket 210 are of an integral structure. It can be understood that the integral structure has good mechanical properties, thus being able to significantly improve the connection strength between at least one mounting member 220 and the bracket 210, and further improving the structural stability after assembly of two adjacent battery packs 100, and enhancing the reliability of the battery module 200.

[0088] In addition, the integral structure is also beneficial to processing and production, thus being able to reduce the manufacturing difficulty, improve the production efficiency, and further being beneficial to reducing the production cost of the battery module 200.

[0089] Optionally, at least one mounting member 220 and the bracket 210 are an integrally injection-molded part.

[0090] According to the third aspect of the present invention, there is provided an energy storage system, including the battery pack 100 or the battery module 200 provided in any of the above embodiments, thus having all the beneficial technical effects of the battery pack 100 or the battery module 200, which will not be elaborated herein.

[0091] 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 circumstances.

[0092] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means 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 expressions 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.

[0093] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

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 plurality of lifting interfaces are arranged at intervals on the end plate, and at least two of the lifting interfaces are respectively located on two sides of the end plate.

2. The battery pack according to claim 1, characterized in that: The plurality of lifting interfaces include a first interface and a second interface, and the first interface and the second interface are respectively located on two adjacent sides of the end plate.

3. The battery pack according to claim 2, characterized in that: The plurality of lifting interfaces further include a third interface, and the third interface and the second interface are respectively located on two opposite sides of the end plate.

4. The battery pack according to claim 3, characterized in that: The third interface and the second interface are symmetrically distributed on two opposite sides of the end plate.

5. The battery pack according to claim 2, characterized in that: The second interface includes a first hanging slot and a second hanging slot, and a notch of the first hanging slot is opposite to a notch of the second hanging slot.

6. The battery pack according to any one of claims 1 to 5, characterized in that: At least one of the lifting interfaces is disposed near an outer edge of the end plate.

7. A battery module, characterized in that: The invention comprises a plurality of battery packs according to any one of claims 1 to 6.

8. The battery module according to claim 7, 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.

9. The battery module according to claim 8, characterized in that: At least one of the mounting members is an integral structure with the bracket.

10. An energy storage system, characterized in that: include: The battery pack according to any one of claims 1 to 6; or A battery module as claimed in any one of claims 7 to 9.

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