Battery module and energy storage power supply

Abstract

This application discloses a battery module and an energy storage power supply. The battery module includes multiple battery rows of number N, where N is an odd number greater than or equal to 3. The battery rows are arranged along a first direction, and each battery row includes multiple individual cells arranged along a second direction. In an odd number of adjacent battery rows (less than N / 2), individual cells in one battery row are alternately connected in series with individual cells in another battery row, so that the current in the adjacent battery rows flows along the second direction. All battery rows are electrically connected to form a total positive and a total negative terminal, which are located at the same end of the battery module along the second direction or adjacent to each other. Thus, the battery module adopts an odd-numbered row layout, with the total positive and total negative terminals located on the same side of the battery module. This layout avoids using long conductive parts to connect to the same position on the circuit board, resulting in lower costs.

Description

Technical Field

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

[0002] Battery devices such as energy storage power supplies include battery modules, which consist of multiple individual cells arranged in an array. These individual cells are typically connected in series and parallel via busbars to form a total negative and a total positive electrode. The total negative and positive electrodes are then connected to a circuit board via conductive components. In related technologies, for battery modules with an odd number of rows, multiple individual cells in each row are connected in series sequentially, and then connected in series with adjacent rows. This results in the total negative and total positive electrodes being located on opposite sides of the battery module, requiring a larger circuit board or longer conductive components to connect them to the same location on the circuit board, leading to higher costs. Summary of the Invention

[0003] This application proposes a battery module and an energy storage power supply.

[0004] The battery module of this application includes a plurality of battery packs of number N, where N is an odd number greater than or equal to 3. The plurality of battery packs are arranged along a first direction, and each battery pack includes a plurality of individual cells arranged along a second direction. In an odd number of adjacent battery packs of number less than N / 2, the individual cells in one battery pack are alternately connected in series with the individual cells in another battery pack, such that the current in the adjacent battery packs flows along the second direction. All battery packs are electrically connected and form a total positive electrode and a total negative electrode. The total positive electrode and the total negative electrode are located at the same end of the battery module in the second direction or adjacent to each other. The first direction and the second direction intersect.

[0005] In the above embodiments, the battery module adopts an odd-numbered row layout, with the total positive and total negative terminals located on the same side of the battery module. This layout avoids using long or large conductive parts to connect to the same position on the circuit board, which can reduce the cost of the battery module.

[0006] In some implementations, the individual cells forming the overall positive electrode and the individual cells forming the overall negative electrode are located in two adjacent battery banks.

[0007] In the above embodiment, the single cell forming the total positive electrode and the single cell forming the total negative electrode are located in two adjacent battery packs. This layout brings the total positive electrode and the total negative electrode closer together, further shortening the length of the connecting conductive parts and reducing material costs and circuit impedance.

[0008] In some implementations, the individual cells forming the overall positive electrode and the individual cells forming the overall negative electrode are located at the ends or middle of the corresponding battery pack.

[0009] In the above embodiments, the individual cells forming the overall positive electrode and the individual cells forming the overall negative electrode can be located at the ends or middle of the corresponding battery packs. This flexible layout can be optimized according to the actual product structure, improving the adaptability and flexibility of the design.

[0010] In some implementations, all individual cells are connected in series via connectors.

[0011] In the above embodiment, all individual battery cells are connected in series via connectors. The connectors enable electrical connection between the individual battery cells, forming a complete series circuit and ensuring continuous current transmission.

[0012] In some embodiments, all individual cells in at least one battery pack are connected in series sequentially along a second direction.

[0013] In the above embodiment, all individual cells in at least one battery pack are connected in series sequentially along the second direction. This connection method simplifies the electrical connection structure of the individual cells in the battery pack, facilitating manufacturing and assembly.

[0014] In some implementations, all individual cells in the battery pack located in the first or last row are connected in series sequentially along the second direction.

[0015] In the above embodiment, all individual cells in the first or last row of battery cells are connected in series sequentially along the second direction. This layout provides a reasonable circuit connection scheme for odd-numbered battery cell modules, facilitating the extraction of the total positive or negative terminal.

[0016] In some embodiments, the positive and negative electrodes of the single battery are located on the same side, and the connector includes a first end and a second end opposite to each other along its length. The first end is flat and the second end is provided with a recess. In two adjacent battery packs connected in series, the first end is connected to the negative electrode of the single battery in one of the battery packs, and the recess is connected to the positive electrode of the single battery in the other battery pack.

[0017] In the above embodiments, the structure of the first end and the second end of the connector can electrically connect two individual batteries so that the battery packs adjacent to each other are connected in series.

[0018] In some embodiments, the individual cells are cylindrical cells. The individual cells in two adjacent cell rows are arranged alternately along a second direction.

[0019] In the above embodiment, the individual battery cells are cylindrical. The individual batteries in two adjacent battery packs are arranged alternately along the second direction. This staggered arrangement makes full use of the module space, reduces ineffective gaps, and can accommodate more cells within the same external dimensions, thereby improving the module's volume space utilization rate.

[0020] In some implementations, the energy storage power source includes a housing and a battery module. The battery module is housed within the housing.

[0021] In the above embodiment, the energy storage power supply includes a housing and a battery module. The battery module is housed within the housing. The energy storage power supply can be used for energy storage and power supply, and the battery module provides both energy storage and output functions.

[0022] In some embodiments, the housing is provided with a receiving groove, and the battery module further includes a bracket, with the first end of the individual battery fixed to the bracket and the second end of the individual battery inserted into the receiving groove.

[0023] In the above embodiments, the bracket and housing provide fixed support for the individual battery cells, ensuring the structural stability and assembly accuracy of the battery module.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein: Figure 1 This is a plan view of the battery module according to an embodiment of this application; Figure 2 This is an exploded view of the battery module according to an embodiment of this application; Figure 3 This is a plan view of the energy storage power supply according to an embodiment of this application; Figure 4 This is an exploded schematic diagram of the energy storage power source according to an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures: 100-Battery module; 10-Battery busbar; 11-Single cell; 41-Total positive electrode; 42-Total negative electrode; 20-Connector; 21-Cell busbar; 22-Total positive connection busbar; 23-Total negative connection busbar; 24-Positioning hole; 25-First end; 26-Second end; 261-Recess; 30-Bracket; 34-Cell slot; 200-Energy storage power supply; 210-Housing shell; 2101-Receiving slot. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0029] like Figures 1-2 As shown, this application provides a battery module 100, which includes a plurality of battery packs 10 of number N, where N is an odd number greater than or equal to 3. The plurality of battery packs 10 are arranged along a first direction Y. Each battery pack 10 includes a plurality of individual cells 11 arranged along a second direction X. In an odd number of adjacent battery packs 10 with a number less than N / 2, the individual cells 11 in one battery pack 10 are alternately connected in series with the individual cells 11 in another battery pack 10, so that the current in the adjacent battery packs 10 flows along the second direction X. All battery packs 10 are electrically connected and form a total positive electrode 41 and a total negative electrode 42. The total positive electrode 41 and the total negative electrode 42 are located at the same end of the battery module 100 in the second direction X or are adjacent to each other. The first direction Y and the second direction X intersect.

[0030] In the above embodiment, the battery module 100 adopts an odd-numbered row layout, with the total positive electrode 41 and the total negative electrode 42 located on the same side of the battery module 100. This layout avoids using long or large conductive parts to connect to the same position on the circuit board, which can reduce the cost of the battery module 100. This layout can make full use of the corner space of the module and the cabinet, reduce ineffective gaps, and accommodate more individual batteries 11 within the same external dimensions, significantly improving the module's volume space utilization rate, thereby reducing the overall size and weight of the device.

[0031] In the above embodiments, the battery module 100 is mainly used in the energy storage power supply 1000 (e.g., Figure 3In battery devices such as (shown), the battery module 100 is installed inside the device housing for storing and providing electrical energy. The odd-numbered row layout places the total positive terminal 41 and the total negative terminal 42 on the same side, facilitating connection with the energy storage power supply 1000 circuit board, shortening the length of conductive components, and reducing costs.

[0032] Specifically, the battery module 100 is a battery assembly formed by connecting multiple individual batteries 11 in series or parallel. The battery module 100 is used to provide the required voltage and capacity.

[0033] Battery row 10 is a single-row assembly of individual cells 11 arranged along the second direction X. Each battery row 10 includes multiple individual cells 11 arranged along the second direction X. The number of individual cells 11 in each battery row 10 can be greater than 3.

[0034] Individual battery cell 11 is the basic unit of battery module 100. Individual battery cell 11 is used to store electrical energy. Individual battery cell 11 can be a cylindrical battery, a prismatic battery, or a pouch battery. In this embodiment, a cylindrical battery can be selected.

[0035] The overall positive terminal 41 is the positive output terminal of the battery module 100. All individual cells 11 are connected in series to form the overall positive terminal 41. The overall negative terminal 42 is the negative output terminal of the battery module 100. The positive terminal of at least one individual cell 11 can be formed as the overall positive terminal of the battery module 100, and the negative terminal of another individual cell 11 can be formed as the overall negative terminal of the battery module 100. The overall positive terminal 41 and / or the overall negative terminal 42 may also include conductive elements connected to the individual cell 11.

[0036] All individual cells 11 are connected in series to form a total negative electrode 42. The total negative electrode 42 and the total positive electrode 41 are located on the same side end of the battery module 100 or adjacent to each other.

[0037] For example, in the first direction Y... Figure 1 The vertical direction shown, the second direction X, for example Figure 2 In the horizontal direction, the second direction X can intersect the first direction Y perpendicularly.

[0038] In the above implementation, N can be 3, 5, 7, etc. In one example, if N is 3, then one adjacent battery pack 10 needs to be connected in series alternately; if N is 5, there is only one odd number less than 2.5 (5 / 2), then one adjacent battery pack 10 needs to be connected in series alternately; if N is 7, there are 1 and 3 odd numbers less than 3.5 (7 / 2), then one or three adjacent battery packs need to be connected in series alternately, and so on.

[0039] like Figure 3 and Figure 4 As shown, in some embodiments, the energy storage power supply 200 includes a housing 210 and a battery module 100. The battery module 100 is disposed within the housing 210.

[0040] In the above embodiment, the energy storage power supply 200 includes a housing 210 and a battery module 100. The battery module 100 is disposed within the housing 210. The energy storage power supply 200 can be used for energy storage and power supply, and the battery module 100 provides energy storage and output functions. The odd-numbered row layout places the total positive terminal 41 and the total negative terminal 42 on the same side, which facilitates connection with the circuit board, reduces costs, and improves safety.

[0041] In the above embodiments, the energy storage power supply 200 is a device capable of storing electrical energy and providing power output. The energy storage power supply 200 is mainly used in portable energy storage, home energy storage, and outdoor power supplies. The energy storage power supply 200 is rapidly developing towards larger capacity, higher integration, lower cost, and longer cycle life; the compact layout of odd-numbered cell arrays meets these requirements. The housing 210 is the outer shell structure of the energy storage power supply 200. The housing 210 is used to house and protect internal components such as the battery module 100. The housing 210 can be made of metal or plastic.

[0042] like Figure 1 and Figure 2 As shown, in some embodiments, the single cell 11 forming the total positive electrode 41 and the single cell 11 forming the total negative electrode 42 are respectively located in two adjacent battery packs 10.

[0043] In the above embodiment, the single cell 11 forming the total positive electrode 41 and the single cell 11 forming the total negative electrode 42 are respectively located in two adjacent battery packs 10. This arrangement brings the total positive electrode 41 and the total negative electrode 42 closer together, further shortening the length of the connecting conductive parts and reducing material costs and circuit impedance.

[0044] In this embodiment, two adjacent battery packs 10 are two battery packs 10 that are spatially adjacent to each other. The single cell 11 forming the total positive electrode 41 and the single cell 11 forming the total negative electrode 42 are respectively located in these two adjacent battery packs 10.

[0045] like Figure 1 and Figure 2 As shown, in some embodiments, the individual cell 11 forming the total positive electrode 41 and the individual cell 11 forming the total negative electrode 42 are located at the end or middle of the corresponding battery pack 10.

[0046] In the above embodiment, the individual cell 11 forming the overall positive electrode 41 and the individual cell 11 forming the overall negative electrode 42 can be located at the ends or the middle of the corresponding battery pack 10. This flexible layout can be optimized according to the actual product structure, improving the adaptability and flexibility of the design. The end layout facilitates connection, while the middle layout allows for a more compact structure.

[0047] Specifically, the ends of the battery pack 10 are the two ends of the battery pack 10 in the second direction X. The middle position of the battery pack 10 is the central region of the battery pack 10 in the second direction X. The individual cells 11 forming the total positive electrode 41 and the individual cells 11 forming the total negative electrode 42 can be arranged at the ends or the middle position according to design requirements.

[0048] like Figure 1 and Figure 2 As shown, in some embodiments, all the individual cells 11 are connected in series via connectors 20.

[0049] In the above embodiment, all the individual battery cells 11 are connected in series via connector 20. Connector 20 enables electrical connection between the individual battery cells 11, forming a complete series circuit and ensuring continuous current transmission.

[0050] Specifically, the connector 20 is a conductive component used to connect the individual battery cells 11 to achieve electrical connection. The connector 20 can be a connecting bus or a copper bus, and is connected to the tabs of the individual battery cells 11 by welding or screwing. Figure 3 and Figure 4 As shown, connector 20 may include a cell busbar 21, a main positive connection busbar 22, or a main negative connection busbar 23. Cell busbar 21 is used to connect the tabs of adjacent individual cells 11. Some cell busbars 21 may be arranged in a cross configuration. Cell busbars 21 shorten the current path and reduce loop impedance. The main positive connection busbar 22 connects the main positive terminal 41 to the circuit board. The main negative connection busbar 23 connects the main negative terminal 42 to the circuit board.

[0051] like Figure 4 As shown, the connector 20 is provided with a positioning hole 24, which is used for positioning during the welding process. The positioning hole 24 prevents the connector 20 from wobbling during the welding process. The positioning hole 24 improves welding quality and yield.

[0052] like Figure 1 and Figure 2 As shown, in some embodiments, all individual cells 11 in at least one battery pack 10 are connected in series along the second direction X.

[0053] In the above embodiment, all individual cells 11 in at least one battery pack 10 are connected in series along the second direction X. This connection method simplifies the electrical connection of the individual cells 11 in the battery pack 10, facilitating manufacturing and assembly. The individual cells 11 are arranged in sequence along the second direction X and connected in series through connectors 20, forming a complete current path.

[0054] Specifically, the series connection involves connecting multiple individual cells 11 within the battery bank 10 one by one in a specific order via connectors 20. The positive terminal of the preceding cell 11 is connected to the negative terminal of the following cell 11. This series connection forms a series circuit.

[0055] The maximum number of battery rows 10 that can be connected in series with multiple individual battery cells 11 is related to the total number of battery rows 10. Generally, subtracting 2 from the total number of odd-numbered battery rows 10 will give the maximum number of battery rows 10 that can be connected in series with all the individual battery cells 11. For example, when the total number of battery rows 10 is 5, all the individual battery cells 11 in 3 of the battery rows 10 can be connected in series.

[0056] In summary, it is only necessary to ensure that the total positive electrode 41 and the total negative electrode 42 formed by connecting all the individual cells 11 in the odd number of battery rows 10 in series are located at the same end of the battery module 100 or adjacent to each other.

[0057] like Figure 1 and Figure 2 As shown, in some embodiments, all individual cells 11 in the battery pack 10 located in the first or last row are connected in series along the second direction X.

[0058] In the above embodiment, all individual cells 11 in the battery pack 10 located in the first or last row are connected in series along the second direction X. This layout provides a reasonable circuit connection scheme for the odd-numbered battery pack module 100, facilitating the lead-out of the total positive terminal 41 or the total negative terminal 42. The battery packs 10 located at the edges adopt a simple series connection method, simplifying the structural design.

[0059] Specifically, the first row consists of the battery packs 10 arranged along the first direction Y at the beginning position. The last row consists of the battery packs 10 arranged along the first direction Y at the end position. The first and last rows are located at the two side edges of the battery module 100.

[0060] like Figure 1 and Figure 2 As shown, in some embodiments, in two adjacent battery packs 10, two individual cells 11 located at the ends of the two battery packs 10 and on the same side are connected in series.

[0061] In the above embodiment, in two adjacent battery packs 10, two individual cells located at the ends of the two battery packs 10 and on the same side are connected in series. This staggered connection method achieves electrical connection between adjacent battery packs 10, while allowing the total positive electrode 41 and the total negative electrode 42 to be located on the same side. This connection method shortens the current path and reduces the use of long jumpers.

[0062] Specifically, "same side" refers to the end positions on the same side in the first direction Y of two adjacent battery packs 10. For example, both battery packs 10 may be located at the left or right end positions in the second direction X. This arrangement allows the connectors 20 to be connected over short distances, avoiding long crossovers.

[0063] In some embodiments, the positive and negative electrodes 112 of a single battery cell 11 are located on the same side, and the connector 20 includes a first end 25 and a second end 26 opposite to each other along its length. The first end 25 is flat, and the second end 26 is provided with a recess 261. In two adjacent battery packs 10 connected in series alternately, the first end 25 is connected to the negative electrode 112 of a single battery cell 11 in one battery pack 10, and the recess 261 is connected to the positive electrode 111 of a single battery cell 11 in another battery pack 10.

[0064] In the above embodiment, the structure of the first end 25 and the second end 26 of the connector 20 can electrically connect two individual batteries 11 so that adjacent battery packs 10 are connected in series.

[0065] Specifically, the negative electrode 112 of the single cell 11 can protrude from the end face of the main body of the single cell 11, and the end face of the main body of the single cell 11 can form the positive electrode 111 of the single cell 11. Thus, designing the second end 26 of the connector 20 into a recessed portion 261 is beneficial for the second end 26 to connect with the positive electrode 111 of the single cell 11. The first end 25 of the connector 20 is formed into a flat plate shape, which makes the structure of the connector 20 simple and easy to manufacture.

[0066] like Figure 1 and Figure 2 As shown, in some embodiments, the individual cell 11 is a cylindrical cell. The individual cells 11 in two adjacent cell rows 10 are arranged alternately along the second direction X.

[0067] In the above embodiment, the individual battery cell 11 is a cylindrical battery. The individual batteries 11 in two adjacent battery packs 10 are arranged alternately along the second direction X. This staggered arrangement makes full use of the space of the battery module 100, reduces ineffective gaps, and can accommodate more individual batteries 11 within the same external dimensions, thereby improving the volume space utilization rate of the battery module 11.

[0068] Specifically, a cylindrical battery is a single cell with a cylindrical shape. The diameter and height of a cylindrical battery are determined based on capacity and power requirements. Cylindrical batteries have advantages such as high standardization, good heat dissipation, and long cycle life.

[0069] Alternating arrangement involves arranging the cylindrical cells in two adjacent battery packs 10 at staggered positions in the second direction X. This alternating arrangement creates an alternating layout, which reduces the gaps between battery packs 10 and improves space utilization.

[0070] like Figure 4 As shown, in some embodiments, the housing 210 is provided with a receiving groove 2101, and the battery module 100 also includes a bracket 30. The first end of the single battery cell 11 is fixed to the bracket 30, and the second end of the single battery cell 11 is inserted into the receiving groove 2101.

[0071] In the above embodiments, the bracket 30 and the housing 2101 provide fixed support for the individual battery cell 11, ensuring the structural stability and assembly accuracy of the battery module 100. The bracket 30 can also integrate fasteners to achieve reliable fixation of the individual battery cell 11.

[0072] Specifically, the bracket 30 is a structural component used to fix and support the individual battery 11. The bracket 30 is used to fix the individual battery 11. The bracket 30 can be made of plastic or metal. The bracket 30 has mounting holes or slots that match the ends of the individual battery 11. The shape of the receiving groove 2101 of the housing 210 matches the shape of the individual battery 11. In some implementations, the energy storage power supply 200 may also include components such as a circuit board and a charge / discharge control circuit.

[0073] The circuit board is a printed circuit board assembly with a battery management system. The circuit board is used to monitor and manage the charge and discharge state of the battery module 100. The circuit board is connected to the battery module 100 via the main positive connection bar 22 and the main negative connection bar 23.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0076] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0077] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0078] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, characterized in that, The battery module comprises multiple battery packs of number N, where N is an odd number greater than or equal to 3. The battery packs are arranged along a first direction, and each battery pack includes multiple individual cells arranged along a second direction. In an odd number of adjacent battery packs (less than N / 2), the individual cells in one battery pack are alternately connected in series with the individual cells in another battery pack, such that the current in the adjacent battery packs flows along the second direction. All battery packs are electrically connected and form a total positive and a total negative electrode. The total positive and the total negative electrode are located at the same end of the battery module in the second direction or adjacent to each other. The first direction and the second direction intersect.

2. The battery module according to claim 1, characterized in that, The individual cells forming the overall positive electrode and the individual cells forming the overall negative electrode are respectively located in two adjacent battery packs.

3. The battery module according to claim 1, characterized in that, The individual cells forming the overall positive electrode and the individual cells forming the overall negative electrode are located at the ends or middle of the corresponding battery packs.

4. The battery module according to claim 1, characterized in that, All of the individual cells are connected in series via connectors.

5. The battery module according to claim 4, characterized in that, All of the individual cells in at least one of the battery packs are connected in series along the second direction.

6. The battery module according to claim 5, characterized in that, All the individual cells in the battery pack located in the first or last row are connected in series along the second direction.

7. The battery module according to claim 4, characterized in that, The positive and negative electrodes of the individual battery are located on the same side. The connector includes a first end and a second end along its length. The first end is flat and the second end has a recess. In two adjacent battery packs connected in series, the first end is connected to the negative electrode of the individual battery in one of the battery packs, and the recess is connected to the positive electrode of the individual battery in the other battery pack.

8. The battery module according to claim 1, characterized in that, The individual cell is a cylindrical cell, and the individual cells in two adjacent cell rows are arranged alternately along the second direction.

9. An energy storage power source, characterized in that, include: case; and The battery module as described in any one of claims 1 to 8, wherein the battery module is disposed within the housing.

10. The energy storage power supply according to claim 9, characterized in that, The housing is provided with a receiving groove, and the battery module also includes a bracket. The first end of the single battery is fixed to the bracket, and the second end of the single battery is inserted into the receiving groove.

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