Battery connection system of energy storage battery, energy storage battery device and electric equipment

Abstract

The invention relates to a battery connection system of an energy storage battery, an energy storage battery device and electric equipment. The battery connection system of the energy storage battery comprises a conductive aluminum bar; the conductive aluminum bar comprises a first power connection piece and a second power connection piece; the first power connection part and the second power connection part have a first different specification, and the first different specification is configured to be assembly fool-proof of the battery connection system of the energy storage battery; the first power connection part of the first power connection piece and the second power connection part of the second power connection piece have different lengths. The first power connection part and the second power connection part form an actual difference, and the difference is easy to limit through assembly and is also beneficial for realizing automatic production and detection technology in a matching manner. And at least in the aspects of the first power connection part and the second power connection part, the first power connection part and the second power connection part have the first different specifications to form an asymmetric assembly fool-proof structure, so that the assembly fool-proof structure has the advantage of simple structure, thereby being beneficial to improving the assembly efficiency and reducing poor assembly, and being easy to popularize and use in production.

Description

Technical Field

[0001] The present application relates to the field of batteries, and particularly to a battery connection system for energy storage batteries, an energy storage battery device, and an electrical equipment. Background Art

[0002] The battery connection system (Cells Contact System, CCS) of a battery pack, also known as an integrated busbar, is a key component in a battery system. Specifically, the CCS, that is, the CCS component, is an integrated component used to achieve functions such as electrical connection between battery cells in a battery pack, signal transmission, and providing mechanical support and protection for the battery pack. In the fields of grid energy storage, distributed energy storage, etc., the CCS in a battery pack can effectively manage and connect a large number of battery cells, ensure the efficient operation and stable power supply of the energy storage system, and contribute to improving the energy utilization efficiency and grid stability.

[0003] When connecting multiple columns of battery cells, multiple CCS components are also provided. During the assembly process, it is easy to misassemble the multiple CCS components, thus affecting the assembly efficiency. Summary of the Invention

[0004] Based on this, it is necessary to provide a battery connection system for energy storage batteries, an energy storage battery device, and an electrical equipment.

[0005] An embodiment of the present application is a battery connection system for energy storage batteries, which includes a conductive aluminum busbar;

[0006] The conductive aluminum busbar includes a first power connection member and a second power connection member;

[0007] The first power connection member and the second power connection member have a first different specification, and the first different specification is configured for anti-fooling assembly of the battery connection system of the energy storage battery;

[0008] Wherein, a first power connection portion of the first power connection member and a second power connection portion of the second power connection member have different lengths.

[0009] For the above-mentioned battery connection system of the energy storage battery, by designing the first power connection portion and the second power connection portion with different lengths, the first power connection member and the second power connection member form an actual difference, and this difference is easy to be limited by assembly, and is also beneficial to cooperate with the realization of automated production and detection processes; and at least in terms of the first power connection portion and the second power connection portion, the first power connection member and the second power connection member have a first different specification to form an asymmetric anti-fooling assembly structure, so it has the advantage of simple structure, thus being beneficial to improving the assembly efficiency and reducing assembly defects, and then being easy to be popularized and used in production.

[0010] In some of these embodiments, in the extending direction of the conductive aluminum busbar or the width direction perpendicular to the extending direction, the length difference between the first electrical connection part and the second electrical connection part is greater than a preset value, and the preset value is the sum of the length tolerance of the conductive aluminum busbar and twice the mating clearance.

[0011] In some of these embodiments, the first electrical connection member is configured as the positive electrode of the conductive aluminum busbar, the second electrical connection member is configured as the negative electrode of the conductive aluminum busbar, and the length of the first electrical connection part is greater than the length of the second electrical connection part.

[0012] In some of these embodiments, the first electrical connection member and the second electrical connection member have different shapes; or,

[0013] the first electrical connection part and the second electrical connection part have different shapes.

[0014] In some of these embodiments, the first electrical connection member and the second electrical connection member have different positioning structures, where the positioning structure includes a convex part and a groove.

[0015] In some of these embodiments, the positioning structure penetrates through the first electrical connection member and the second electrical connection member; or, the positioning structure is located at the edges of the first electrical connection member and the second electrical connection member.

[0016] In some of these embodiments, the first electrical connection part and the second electrical connection part have different positioning structures;

[0017] wherein, the positioning structure penetrates through the first electrical connection part and the second electrical connection part; or, the positioning structure is located at the edges of the first electrical connection part and the second electrical connection part.

[0018] In some of these embodiments, the battery connection system of the energy storage battery further includes a circuit board;

[0019] And, at least two through holes are formed in the circuit board, and at least two of the through holes are configured to be recognized by a charge-coupled device detection device as an anti-fooling measure for the assembly of the circuit board.

[0020] In some of these embodiments, at least two of the through holes exhibit different morphologies in different orders along the extending direction of the conductive aluminum busbar.

[0021] In some of these embodiments, the through holes include a first through hole and a second through hole, and the first through hole and the second through hole have different numbers, different position distributions, or different second specifications to cooperate with the first electrical connection member and the second electrical connection member as an anti-fooling measure for the assembly of the battery connection system of the energy storage battery.

[0022] In some embodiments, the through hole is configured to expose the explosion-proof valve of the battery cell connected to the conductive aluminum busbar.

[0023] In some embodiments, the through hole includes a first through hole and a second through hole, and the first through hole and the second through hole have different areas to expose different numbers of the explosion-proof valves.

[0024] In some embodiments, the through hole includes a first through hole and a second through hole, and the first through hole is configured to expose all the explosion-proof valves of the battery cell connected to the conductive aluminum busbar.

[0025] In some embodiments, the battery connection system of the energy storage battery further includes an isolation plate, and the isolation plate is disposed on the conductive aluminum busbar.

[0026] In some embodiments, the isolation plate has an isolation shape corresponding to the first electrical connection member and the second electrical connection member, and the isolation shape is configured for anti-misassembly of the battery connection system of the energy storage battery.

[0027] In some embodiments, the battery connection system of the energy storage battery further includes a circuit board, and at least two through holes are formed in the circuit board. At least two of the through holes are configured to be recognized by a charge-coupled device detection device for anti-misassembly of the circuit board;

[0028] At least one of the through holes is a first through hole, and the first through hole is configured to expose at least two explosion-proof valves of the battery cell connected to the conductive aluminum busbar;

[0029] The isolation plate is provided with a protruding portion, and the protruding portion is embedded in the first through hole, and the protruding portion is configured to isolate adjacent explosion-proof valves.

[0030] In some embodiments, the circuit board is disposed on the isolation plate and located between the isolation plate and the conductive aluminum busbar.

[0031] In some embodiments, an energy storage battery device includes a battery cell, an end plate, and the battery connection system of the energy storage battery according to any one of the embodiments;

[0032] The conductive aluminum busbar of the battery connection system of the energy storage battery is connected to the electrode of the battery cell;

[0033] The end plate is provided with a first electrical connection base and a second electrical connection base;

[0034] The first electrical connection member of the conductive aluminum busbar is mounted on the first electrical connection base, and the second electrical connection member of the conductive aluminum busbar is mounted on the second electrical connection base;

[0035] Wherein, the first power connection base and the second power connection base have different assembly lengths to adapt to the first power connection part of the first power connection member and the second power connection part of the second power connection member.

[0036] In the above energy storage battery device, by designing the first power connection part and the second power connection part with different lengths, and cooperating with the first power connection base and the second power connection base with different assembly lengths, a sufficient actual difference is formed when the first power connection member and the second power connection member are assembled with the first power connection base and the second power connection base. This difference is easy to be limited by assembly, and is also beneficial to cooperate with the realization of automatic production and detection processes; and at least in terms of the first power connection part and the second power connection part, the first power connection member and the second power connection member have a first different specification to form an asymmetric assembly anti-fooling structure, so as to be correspondingly adapted and installed on the first power connection base and the second power connection base. Therefore, it has the advantage of simple structure, which is beneficial to improving the assembly efficiency and reducing the assembly defects, and is thus easy to be popularized and used in production.

[0037] In some of the embodiments, the end plate is further provided with inserts, and the first power connection base and the second power connection base respectively achieve different assembly lengths through the different inserts;

[0038] The first power connection part is arranged on the first power connection base through one of the inserts, and the second power connection part is arranged on the second power connection base through the other insert.

[0039] In some of the embodiments, an electrical equipment includes the energy storage battery device according to any of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0041] Figure 1 It is a schematic structural diagram of an embodiment of the energy storage battery device described in the present application.

[0042] Figure 2 For Figure 1 Partial structural schematic diagram of the shown embodiment.

[0043] Figure 3 For Figure 1 Exploded structural schematic diagram of the shown embodiment.

[0044] Figure 4 For Figure 3Schematic diagram of the structure where the first power connection component in another direction of the illustrated embodiment is installed on the first power connection base.

[0045] Figure 5 For Figure 3 Schematic diagram of the structure where the second power connection component in another direction of the illustrated embodiment is installed on the second power connection base.

[0046] Figure 6 For Figure 1 Schematic diagram of another direction of the illustrated embodiment.

[0047] Figure 7 For Figure 6 Schematic diagram of the incorrect assembly of the illustrated embodiment.

[0048] Figure 8 For Figure 3 Schematic diagram of another direction of the illustrated embodiment.

[0049] Figure 9 For Figure 8 Enlarged schematic diagram at position A of the illustrated embodiment.

[0050] Figure 10 Schematic diagram of the structure of another embodiment of the energy storage battery device described in the present application.

[0051] Figure 11 For Figure 10 Exploded schematic diagram of the structure of the illustrated embodiment.

[0052] Figure 12 For Figure 11 Enlarged schematic diagram at position B of the illustrated embodiment.

[0053] Figure 13 For Figure 10 Assembly schematic diagram of a part of the structure of the illustrated embodiment.

[0054] Reference numerals: 100, energy storage battery device; 200, battery connection system of the energy storage battery; 210, conductive aluminum bar; 211, first power connection component; 212, second power connection component; 213, intermediate connection component; 214, positioning structure; 221, first power connection part; 222, second power connection part; 230, isolation plate; 231, protruding part; 240, wire harness; 250, circuit board; 251, first through hole; 252, second through hole; 260, extension direction; 270, width direction; 280, fixing part; 300, battery cell; 310, explosion-proof valve; 320, electrode; 400, end plate; 410, first end plate; 411, first power connection base; 420, second end plate; 421, second power connection base; 430, insert; 500, fastening belt; 600, detection direction; L1, first length; L2, second length. Detailed implementation manners

[0055] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0056] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present application are only for illustrative purposes and do not represent the only implementation manner.

[0057] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0058] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0059] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the related listed items.

[0060] This application discloses a battery connection system for an energy storage battery, an energy storage battery device, and an electrical equipment, which include some or all of the technical features of the following embodiments. In one embodiment of this application, a battery connection system for an energy storage battery includes a conductive aluminum busbar; the conductive aluminum busbar includes a first power connection member and a second power connection member; the first power connection member and the second power connection member have a first different specification, and the first different specification is configured for anti-misassembly of the battery connection system of the energy storage battery; wherein, the first power connection part of the first power connection member and the second power connection part of the second power connection member have different lengths. For the above battery connection system of the energy storage battery, by designing the first power connection part and the second power connection part with different lengths, the first power connection member and the second power connection member form an actual difference, and this difference is easy to be limited by assembly, which is also beneficial to cooperate with the realization of automatic production and detection processes; and at least in terms of the first power connection part and the second power connection part, the first power connection member and the second power connection member have a first different specification to form an asymmetric anti-misassembly structure, so it has the advantage of simple structure, which is beneficial to improving the assembly efficiency and reducing the assembly defects, and thus is easy to be popularized and used in production. The following combines Figures 1 to 13 , and details the battery connection system for the energy storage battery, the energy storage battery device, and the electrical equipment.

[0061] An energy storage battery is a device that can convert electrical energy into chemical energy for storage and then convert the chemical energy back into electrical energy when needed. In some of these embodiments, an energy storage battery device 100 is as Figure 1 shown, which includes a battery cell 300, an end plate 400, and a battery connection system 200 of the energy storage battery, wherein the battery connection system 200 of the energy storage battery is the battery connection system 200 of the energy storage battery in any of the embodiments herein. Combining Figure 2 and Figure 3 , the conductive aluminum busbar 210 of the battery connection system 200 of the energy storage battery is connected to the electrode 320 of the battery cell 300; combining Figure 4 and Figure 5, the end plate 400 is provided with a first power connection base 411 and a second power connection base 421; the first power connection member 211 of the conductive aluminum bar 210 is installed on the first power connection base 411, and the second power connection member 212 of the conductive aluminum bar 210 is installed on the second power connection base 421; wherein, the first power connection base 411 and the second power connection base 421 have different assembly lengths to adapt to the first power connection part 221 of the first power connection member 211 and the second power connection part 222 of the second power connection member 212. With such a design, by designing the first power connection part 221 and the second power connection part 222 with different lengths, and cooperating with the first power connection base 411 and the second power connection base 421 with different assembly lengths, sufficient actual differences are formed when the first power connection member 211 and the second power connection member 212 are assembled with the first power connection base 411 and the second power connection base 421. And such differences are easy to be limited by assembly, which is also beneficial to cooperate with the realization of automatic production and detection processes; and at least in terms of the first power connection part 221 and the second power connection part 222, the first power connection member 211 and the second power connection member 212 have a first different specification to form an asymmetric assembly anti-fooling structure, so as to be correspondingly adapted to be installed on the first power connection base 411 and the second power connection base 421. Therefore, it has the advantage of simple structure, which is beneficial to improving the assembly efficiency and reducing the assembly defects, and thus is easy to be popularized and used in production.

[0062] As an example, in combination with Figure 11 , the end plate 400 includes a first end plate 410 and a second end plate 420. The first end plate 410 is provided with a first power connection base 411, and the second end plate 420 is provided with a second power connection base 421; as an example, the conductive aluminum bar 210 further includes a plurality of intermediate connection members 213, and each intermediate connection member 213 connects the first power connection member 211 and the second power connection member 212 respectively. As an example, the first power connection member 211, each intermediate connection member 213 and the second power connection member 212 are connected in series in sequence.

[0063] As an example, Figures 1 to 3 In the illustrated embodiment, the number of the battery cells 300 is multiple and the multiple battery cells 300 are regularly arranged. The regularly arranged battery cells 300 can also be called a battery cell module. As an example, Figures 1 to 3 In the illustrated embodiment, the energy storage battery device 100 further includes a fastening band 500, and the fastening band 500 is used for fastening and binding the battery cells 300 and the end plate 400. As an example, the fastening band 500 is a steel band. With such a design, it can effectively resist the impact force and vibration that the battery cell module may encounter during transportation, installation and use, prevent external forces such as mechanical impact and collision from damaging the battery cells 300, so as to protect the battery cells 300 from being damaged by external mechanical stress and extend the service life of the energy storage battery device 100.

[0064] In some of the embodiments, such as Figure 13As shown, the end plate 400 is further provided with inserts 430. The first power connection base 411 and the second power connection base 421 achieve different assembly lengths through different inserts 430 respectively. The first power connection part 221 is arranged on the first power connection base 411 through an insert 430, and the second power connection part 222 is arranged on the second power connection base 421 through another insert 430. With such a design, on the one hand, by using the inserts 430 to achieve different assembly lengths of the first power connection base 411 and the second power connection base 421, the installation position of the power connection parts can be controlled more precisely, reducing assembly errors and thus improving assembly efficiency. On the other hand, in this embodiment, by adding the inserts 430, it is allowed to adapt to different specifications of power connection parts or their power connection parts by replacing or adjusting the inserts without changing the main structure of the end plate 400, thereby enhancing the flexibility and scalability of the energy storage battery device 100. On the further hand, through the use of the inserts 430, the manufacturing process of the end plate 400 can be simplified in this embodiment, thus reducing the use of complex molds and further reducing production costs. On the yet another hand, through the cooperation of different inserts 430 to achieve an asymmetric assembly anti-fooling structure design, the wrong installation of the two power connection parts or the wrong installation of the two power connection parts can be effectively prevented, reducing the failures caused by assembly errors, improving the reliability of assembly, and thus improving the reliability of the product.

[0065] In each embodiment, the specification is the form factor, including the shape and size, and can also be called the geometric characteristics. Exemplarily, in the extending direction 260 of the conductive aluminum bar 210, the first power connection part 221 and the second power connection part 222 have different lengths; or, along the width direction 270 perpendicular to the extending direction 260, the first power connection part 221 and the second power connection part 222 have different lengths. The first power connection base 411 and the second power connection base 421 of the end plate 400 have the first different specifications corresponding to the first power connection part 211 and the second power connection part 212.

[0066] In some of the embodiments, as Figure 3 shown, the battery connection system 200 of the energy storage battery includes a conductive aluminum bar 210; combined with Figure 4 and Figure 5The conductive aluminum bar 210 includes a first connection piece 211 and a second connection piece 212; the first connection piece 211 and the second connection piece 212 have first different specifications, and the first different specifications are configured as the assembly foolproofing of the battery connection system 200 of the energy storage battery; wherein the first connection part 221 of the first connection piece 211 and the second connection part 222 of the second connection piece 212 have different lengths. Such a design, by designing the first connection part 221 and the second connection part 222 with different lengths, makes the first connection piece 211 and the second connection piece 212 form an actual difference, and such a difference is easy to be defined by assembly, and is also conducive to the coordination of the realization of automated production and testing processes; and at least in terms of the first connection part 221 and the second connection part 222, the first connection piece 211 and the second connection piece 212 have first different specifications to form an asymmetric assembly foolproofing structure, so it has the advantage of simple structure, which is conducive to improving assembly efficiency and reducing assembly defects, and is easy to promote and use in production.

[0067] Thus, when installing the battery connection system 200 of the energy storage battery, the different width structures of the conductive aluminum bars 210 can achieve the purpose of foolproofing and improve the assembly efficiency and reliability of the battery connection system 200 of the energy storage battery. Figure 2 As shown, in the extension direction 260 of the conductive aluminum row 210 or in the width direction 270 perpendicular to the extension direction 260, the conductive aluminum row 210 is connected to the conductive aluminum row 210. Figure 4 and Figure 5 , the length difference between the first power connection part 221 and the second power connection part 222 is greater than a preset value, which is the sum of the length tolerance of the conductive aluminum bar 210 and two times the matching gap. That is, the battery connection system 200 of the energy storage battery includes the conductive aluminum bar 210; the conductive aluminum bar 210 includes the first power connection part 211 and the second power connection part 212; the first power connection part 211 and the second power connection part 212 have first different specifications, and the first different specifications are configured to prevent the battery connection system 200 of the energy storage battery from being fooled; wherein the first power connection part 221 of the first power connection part 211 and the second power connection part 222 of the second power connection part 212 have different lengths; and in the extension direction 260 of the conductive aluminum bar 210 or the width direction 270 perpendicular to the extension direction 260, the length difference between the first power connection part 221 and the second power connection part 222 is greater than a preset value, which is the sum of the length tolerance of the conductive aluminum bar 210 and two times the matching gap. The remaining embodiments are similar and will not be described in detail.

[0068] As an example, Figure 4 and Figure 5As shown, in the width direction 270, the first electrical connection part 221 has a first length L1, the second electrical connection part 222 has a second length L2, and the first length L1 and the second length L2 are set differently so that the first electrical connection part 221 and the second electrical connection part 222 have different lengths. In this embodiment, the extending direction 260 of the conductive aluminum row 210 is the same as the extending direction of the circuit board 250, that is, the length direction of the circuit board 250. The width direction 270 is perpendicular to the extending direction 260 and is also the same as the width direction of the circuit board 250. The length difference between the first electrical connection part 221 and the second electrical connection part 222 in the extending direction 260 or the width direction 270 helps to prevent misassembly judgment from the length dimension during assembly, thereby increasing the accuracy of assembly. Moreover, by setting the length difference between the first electrical connection part 221 and the second electrical connection part 222 to be greater than a preset value, the anti-misassembly function of assembly can be realized more reliably, ensuring the effectiveness of assembly, thus effectively avoiding assembly errors caused by factors such as length tolerance and fitting clearance, further improving the accuracy and reliability of assembly, and then reducing the production cost and quality risk brought by assembly errors. Therefore, it is beneficial to enhance the stability and safety of the battery connection system 200 of the energy storage battery.

[0069] In some embodiments, the first electrical connection member 211 is configured as the positive electrode of the conductive aluminum row 210, the second electrical connection member 212 is configured as the negative electrode of the conductive aluminum row 210, and the length of the first electrical connection part 221 is greater than the length of the second electrical connection part 222. This can visually distinguish the positive and negative electrodes, and this length difference enables staff or automated equipment to quickly and accurately identify the positive and negative electrodes during the assembly process, avoiding assembly errors caused by polarity confusion; combined with the embodiment where the length difference between the first electrical connection part 221 and the second electrical connection part 222 is greater than a preset value, this design not only considers the tolerance range during the manufacturing process but also the fitting clearance that may occur during assembly, thereby further enhancing the anti-misassembly function. Exemplarily, even in the presence of manufacturing tolerances and assembly clearances, the obvious difference in length between the first electrical connection part 221 and the second electrical connection part 222 can ensure that the positive and negative electrical connection members are not wrongly interchanged, thus effectively reducing the risk of assembly errors.

[0070] This embodiment is applied to an automated production line. This length difference can be quickly identified by mechanical or optical detection equipment, thereby realizing automated assembly and quality inspection. The automated equipment can quickly judge whether the electrical connection member is correctly installed according to the preset length standard, further improving the production efficiency and quality control level. Moreover, this anti-misassembly design based on length difference has a simple structure and does not require complex mechanical structures or electronic components to achieve the anti-misassembly function. It can be achieved only by adjusting the length of the electrical connection part, so it is easy to implement in the existing production process without additional equipment or complex process transformation, thereby reducing the production cost.

[0071] In some of these embodiments, the first electrical connection member 211 and the second electrical connection member 212 have different shapes. In some of these embodiments, the first electrical connection portion 221 and the second electrical connection portion 222 have different shapes, that is, the shape difference between the first electrical connection member 211 and the second electrical connection member 212 is presented through the first electrical connection portion 221 and the second electrical connection portion 222. Exemplarily, the remaining parts of the first electrical connection member 211 except the first electrical connection portion 221 have the same shape as the remaining parts of the second electrical connection member 212 except the second electrical connection portion 222. As an example, the first electrical connection member 211 is rectangular and the second electrical connection member 212 is trapezoidal, and vice versa; or, the first electrical connection portion 221 is rectangular and the second electrical connection portion 222 is trapezoidal, and vice versa. Such a design, on the one hand, by designing the first electrical connection portion 221 and the second electrical connection portion 222 to have different shapes, enables staff or automated equipment to quickly identify the positive and negative electrical connection members through the intuitive shape difference during the assembly process. This shape difference is more obvious than a simple length difference, further reducing the possibility of assembly errors. On the other hand, in addition to the length difference, the shape difference provides another anti-fooling means. Even when the length difference is not obvious or is ignored, the shape difference can still ensure the correct installation of the electrical connection members. This multi-dimensional anti-fooling design greatly improves the reliability and safety of the system, and at the same time improves the assembly efficiency. Especially in large-scale production and automated assembly lines, it can significantly reduce the assembly time.

[0072] Exemplarily, the first electrical connection member 211 or its first electrical connection portion 221 is of a first shape, the second electrical connection member 212 or its second electrical connection portion 222 is of a second shape, and the first shape and the second shape are set differently. The first electrical connection base 411 of the end plate 400 has the first shape corresponding to the first electrical connection member 211 or its first electrical connection portion 221, and the second electrical connection base 421 of the end plate 400 has the second shape corresponding to the second electrical connection member 212 or its second electrical connection portion 222. In this way, for occasions with higher anti-fooling requirements, more complex shape differences can be designed; for simple application scenarios, relatively simple shape differences can be adopted. This flexibility enables this design to adapt to various different usage environments and requirements. Through the design of shape differences, safety accidents such as short circuits and overheating caused by incorrect connection of polarities can be effectively avoided, thereby improving the overall safety of the system. Moreover, this design based on shape differences can be combined with other anti-fooling measures to further improve the anti-fooling effect of the system. At the same time, this design is also convenient for future technological upgrades and expansions, such as adding new anti-fooling functions or improving the existing design on the existing basis. In addition, the design of shape differences can be achieved through simple mold manufacturing and processing techniques, without the need for complex mechanical structures or electronic components. This simple design is easy to implement in the existing production process, reducing production costs and process complexity.

[0073] In some of these embodiments, such as Figure 4 and Figure 5 shown, the first electrical connection member 211 and the second electrical connection member 212 have different positioning structures 214, wherein the positioning structure includes a convex portion and a groove. Figure 4 and Figure 5 In the illustrated embodiments, the positioning structures 214 of the first electrical connection member 211 and the second electrical connection member 212 are grooves and have different positions, for positioning and anti-fooling, to ensure the accurate installation of the first electrical connection member 211 and the second electrical connection member 212. In other embodiments other than those illustrated, the first electrical connection member 211 and the second electrical connection member 212 may also have the same positioning structure 214 to play a positioning role. In some of these embodiments, the positioning structure penetrates through the first electrical connection member 211 and the second electrical connection member 212; or, the positioning structure is located at the edge of the first electrical connection member 211 and the edge of the second electrical connection member 212. Exemplarily, a first positioning structure is provided at the edge of the first electrical connection member 211, and a second positioning structure is provided at the edge of the second electrical connection member 212. The first positioning structure and the second positioning structure are differently shaped and have an intermeshing structure, so as to facilitate production and preparation. Exemplarily, the first positioning structure and the second positioning structure with an intermeshing structure are spliced into a complete rectangle, a rounded rectangle or other shapes, so that the intermediate meshing position forms an integral shape without gaps after splicing, so that fewer molds can be opened for rapid preparation. Such a design, on the one hand, the cooperation of the convex portion and the groove can ensure the accurate positioning of the electrical connection member during assembly, reduce the assembly error, and the through-type positioning structure or the positioning structure located at the edge can effectively limit the movement of the electrical connection member during the assembly process and ensure the accuracy of its position. Therefore, this design is particularly suitable for the energy storage battery device 100 that requires high-precision connection, and can significantly reduce the problems of poor contact or short circuit caused by assembly deviation. On the other hand, the convex portion and groove design of the positioning structure makes the assembly process more intuitive and fast. The assembly personnel or automated equipment can complete the assembly through simple alignment operations, further improving the anti-fooling assembly effect and reducing the assembly time and complexity. On the other hand, the through-type positioning structure can provide stronger mechanical stability, ensuring that the electrical connection member will not loosen due to vibration or external force during long-term use, and the positioning structure located at the edge can effectively prevent the electrical connection member from being misaligned during the assembly process, further improving the stability and reliability of the system. Therefore, this design is particularly suitable for the energy storage battery device 100 that needs to operate in a complex environment.

[0074] Specifically, the positioning structure can be disposed at the first power connection portion 221 of the first power connection member 211 and the second power connection portion 222 of the second power connection member 212. In some embodiments, the first power connection portion 221 and the second power connection portion 222 have different positioning structures; wherein, the positioning structure penetrates through the first power connection portion 221 and the second power connection portion 222; alternatively, the positioning structure is located at the edge of the first power connection portion 221 and the edge of the second power connection portion 222. Exemplarily, a first positioning structure is provided at the edge of the first power connection portion 221, and a second positioning structure is provided at the edge of the second power connection portion 222. The first positioning structure and the second positioning structure are differently shaped and have a mutually meshing structure, which is convenient for production and preparation. The specific beneficial effects are the same as above and will not be elaborated here.

[0075] In some embodiments, such as Figure 3 or Figure 6 As shown, the battery connection system 200 of the energy storage battery further includes a circuit board 250; and, at least two through holes are formed in the circuit board 250, and the at least two through holes are configured to be recognized by a charge-coupled device detection device as an anti-fooling measure for the assembly of the circuit board 250. Such a design, on the one hand, is conducive to being recognized by the detection device, can effectively prevent the circuit board 250 from having a wrong direction or position during the assembly process, thereby ensuring the correct installation of the circuit board 250; and this anti-fooling design further reduces the assembly errors caused by human factors and improves the reliability and consistency of the assembly process. On the other hand, the through holes serve as detection marks, enabling the charge-coupled device detection device to quickly and accurately identify the assembly state of the circuit board, reducing the detection time and labor costs. The automated detection device can use these through holes for rapid positioning and detection, improving the detection efficiency, and at the same time reducing the quality problems caused by inaccurate detection.

[0076] In some of these embodiments, at different orders along the extending direction 260 of the conductive aluminum busbar 210, at least two through-holes exhibit different morphologies. In some of these embodiments, the through-holes include a first through-hole 251 and a second through-hole 252, and the first through-hole 251 and the second through-hole 252 have different numbers, different position distributions, or second different specifications to cooperate with the first electrical connection member 211 and the second electrical connection member 212, serving as an anti-fooling measure for the assembly of the battery connection system 200 of the energy storage battery. With such a design, by utilizing the morphological differences of the through-holes, on the one hand, it can effectively prevent the circuit board 250 from being misinstalled during the assembly process, enabling the assembly personnel or automated equipment to quickly identify the correct assembly direction, thereby reducing assembly errors. On the other hand, the design of through-holes with different morphologies makes the assembly process more intuitive and fast. The assembly personnel or automated equipment can complete the assembly through simple alignment operations, reducing the assembly time and complexity, further enhancing the anti-fooling effect. Moreover, this design reduces the rework and repair time caused by assembly errors, further improving the production efficiency. On the further hand, the morphological differences of the through-holes can be quickly identified by the charge-coupled device inspection equipment, which is conducive to realizing automated inspection, not only improving the inspection efficiency but also reducing the quality problems caused by inaccurate inspection, further improving the quality control level of the production process.

[0077] To enhance safety, in some of these embodiments, the through-holes are configured to expose the explosion-proof valves 310 of the battery cells 300 connected to the conductive aluminum busbar 210. In some of these embodiments, the through-holes include a first through-hole 251 and a second through-hole 252, and the first through-hole 251 and the second through-hole 252 have different areas to expose different numbers of explosion-proof valves 310. In some of these embodiments, the through-holes include a first through-hole 251 and a second through-hole 252, and the first through-hole 251 is configured to expose all the explosion-proof valves 310 of the battery cell 300 connected to the conductive aluminum busbar 210, that is, the second through-hole 252 does not need to expose the explosion-proof valves 310. That is, for the related embodiments of the energy storage battery device 100, the explosion-proof valves 310 of the battery cell 300 are exposed outside the circuit board 250 through the through-holes. With such a design, by designing the through-holes to expose the explosion-proof valves 310, on the one hand, it ensures that the explosion-proof valves 310 can be quickly inspected or maintained when needed, and a certain buffer space is left for the explosion-proof valves 310, thereby reducing the risk of system failures caused by explosion-proof valve failures, thus improving the reliability of the energy storage battery device 100 or the battery connection system 200 of the energy storage battery; on the other hand, the first through-hole 251 and the second through-hole 252 have different areas, which can be flexibly designed according to different battery cell 300 configurations and the number of explosion-proof valves 310, further enhancing the anti-fooling effect. Moreover, this design reduces the rework and repair time caused by assembly errors, thereby improving the production efficiency.

[0078] In this way, by opening through holes on the circuit board 250, a foolproof design for asymmetric holes can be achieved, enabling detection through an automatic detection method during the assembly process of the battery connection system 200 of the energy storage battery. The following is an example description of photographing detection. In some embodiments, such as Figure 6 and Figure 7 shown, the detection system or detection device pre-stores a correct installation image of the circuit board 250 as a template, and key points are selected as feature points in the template. After the battery connection system 200 of the energy storage battery completes the installation process of the circuit board 250, a photograph is taken to obtain the current installation image, which is automatically compared with the template. In this way, by combining a charge-coupled device (CCD) for determination, the assembly efficiency can be further improved. That is, for the same product, by presenting different forms, such as an asymmetric through-hole design, it can be recognized by the CCD detection device for the circuit board 250 as an anti-fooling measure for assembly. As an example, if the battery connection system 200 of the energy storage battery is as Figure 6 shown and enters the detection in the detection direction 600, and it is determined that the installation is correct, the detection device does not give an alarm or perform any processing, and it normally flows to the station for component welding; if the battery connection system 200 of the energy storage battery is as Figure 7 shown and enters the detection in the detection direction 600, it is determined that the installation is incorrect, the detection device gives an alarm and withdraws the component, and the component cannot flow to the welding station. In this way, with the help of the anti-fooling structure, when installing the CCS, an asymmetric opening is combined with the CCD image recognition detection of the device to prevent incorrect CCS from flowing to the welding station, causing unnecessary rework and waste, and improving the assembly efficiency and reliability of the CCS, thereby greatly improving the production efficiency and assembly reliability.

[0079] The following continues to exemplify the anti-fooling design of the battery connection system 200 of the energy storage battery. In each embodiment, the first power connection part 221 and the second power connection part 222 in the battery connection system 200 of the energy storage battery have different lengths, that is, different widths are designed as the first anti-fooling structure, and different widths are reserved for the positive and negative bases at the corresponding positions of the end plate 400. During installation, these different width structures are used to match the different reserved width structures at the positions of the positive and negative bases of the end plate 400 to achieve anti-fooling installation, thereby improving the installation efficiency and reliability. In this way, the anti-fooling structure is provided on the positive and negative outputs of the CCS, and the corresponding two end plates 400 have different structures to achieve the purpose of anti-fooling installation.

[0080] Exemplarily, such as Figure 13As shown, the first power connection base 411 is snap-fitted and adapted to the first power connection member 211 or the first power connection portion 221, and the second power connection base 421 is snap-fitted and adapted to the second power connection member 212 or the second power connection portion 222. Moreover, the first power connection base 411 and the second power connection base 421 have different slot sizes, that is, the slot sizes of the first power connection base 411 and the second power connection base 421 are different. Among them, the first power connection base 411 is used to mount the first power connection portion 221 of the first power connection member 211, the first power connection portion 221 has a first length L1, the second power connection base 421 is used to mount the second power connection portion 222 of the second power connection member 212, the second power connection portion 222 has a second length L2, and the first length L1 and the second length L2 are set differently. It should be noted that since the difference between the first length L1 and the second length L2 is small, for example, the difference is at the millimeter level, so in Figure 13 it appears that the slot sizes of the first power connection base 411 and the second power connection base 421 are similar. And it can be understood that, Figure 13 in it, the slot lengths of the first power connection base 411 and the second power connection base 421 are respectively marked as the first length L1 and the second length L2. In actual operation, a fitting gap usually needs to be left, that is, the slot length of the first power connection base 411 is slightly greater than the first length L1, and the slot length of the second power connection base 421 is slightly greater than the second length L2, so as to facilitate assembly while maintaining the anti-misassembly design. In other embodiments not shown in the figure, the first power connection base 411 and the second power connection base 421 have different slot shapes, or the slot sizes of the first power connection base 411 and the second power connection base 421 are different and the slot shapes are different. As an example, the outer shape of the end plate 400 is designed to be an asymmetric shape. For example, the first power connection base 411 is rectangular and the second power connection base 421 is trapezoidal, or notches or protrusions of different shapes are provided on the edge of the end plate 400, etc. Such a design, in cooperation with the first power connection member 211 and the second power connection member 212, realizes the anti-misassembly function.

[0081] As an example, CCS or its circuit board 250 is provided with an asymmetric opening structure, that is, a through hole. The opening structure serves as a second anti-misassembly structure, and the opening structure is used to expose the explosion-proof valve 310 of the battery cell 300. The asymmetric opening structure includes, but is not limited to, inconsistent opening sizes, inconsistent opening shapes, and inconsistent numbers of explosion-proof valves exposed by the opening structure, etc. As an example, a large opening is opened on the CCS to expose all the corresponding explosion-proof valves, and a small piece is left on one side of the large opening for anti-misassembly or detection.

[0082] In some of the embodiments, such as Figure 8 and Figure 9As shown, the battery connection system 200 of the energy storage battery further includes an isolation plate 230, and the isolation plate 230 is disposed on the conductive aluminum bar 210. In some embodiments, the circuit board 250 is disposed on the isolation plate 230 and is located between the isolation plate 230 and the conductive aluminum bar 210. That is, for the embodiments having the circuit board 250, the isolation plate 230 is disposed on the conductive aluminum bar 210, and the circuit board 250 is disposed on the isolation plate 230, that is, the isolation plate 230 is located between the circuit board 250 and the conductive aluminum bar 210. With such a design, the isolation plate 230 is disposed on the conductive aluminum bar 210. On the one hand, it can effectively achieve physical isolation, such as preventing spraying, and improve the safety performance of the battery connection system 200 of the energy storage battery; on the other hand, it can fix the position of the conductive aluminum bar 210 to prevent it from being displaced or deformed during assembly and use; on the other hand, it can provide additional support for the conductive aluminum bar 210, enhance the mechanical stability of the battery connection system 200 of the energy storage battery, and reduce damage caused by external force or vibration.

[0083] In some embodiments, the isolation plate 230 has an isolation shape corresponding to the first electrical connection member 211 and the second electrical connection member 212, and the isolation shape is configured for anti-misassembly of the battery connection system 200 of the energy storage battery. With such a design, the isolation shape of the isolation plate 230 corresponds to the shapes of the first electrical connection member 211 and the second electrical connection member 212. On the one hand, it ensures that it can only be installed in the correct manner during the assembly process. This design uses the physical structure to limit the wrong assembly direction, thereby effectively preventing short circuits or other electrical faults caused by assembly errors. On the other hand, the isolation plate 230 can also be used as a positioning reference during assembly. Through the precise matching of the isolation shape, the assembler or automated equipment can quickly identify the correct assembly position, reducing the error rate during the assembly process. And because the possibility of assembly errors is reduced, the inspection and calibration time after assembly is also correspondingly reduced, further improving the production efficiency.

[0084] As an example, a spraying isolation plate is disposed above the CCS, and the spraying isolation plate is used to isolate the sprayed electrolyte to prevent it from spreading. For the case where multiple explosion-proof valves 310 correspond to the same opening, a convex portion can be disposed on the side of the spraying isolation plate facing the battery cell, and the adjacent two explosion-proof valves can be separated by the convex portion.

[0085] In some embodiments, in combination with Figure 10 and Figure 11, the battery connection system 200 of the energy storage battery further includes a circuit board 250. The circuit board 250 is provided with at least two through holes, and the at least two through holes are configured to be recognized by the charge-coupled device detection equipment as an anti-fooling measure for the assembly of the circuit board 250; at least one through hole is a first through hole 251, and the first through hole 251 is configured to expose at least two explosion-proof valves 310 of the battery cell 300 connected to the conductive aluminum row 210; the separator 230 is provided with a protrusion 231, and the protrusion 231 is embedded in the first through hole 251, and the protrusion 231 is configured to isolate adjacent explosion-proof valves 310. In other embodiments, other through holes, such as the second through hole 252, may be configured to expose the explosion-proof valve 310, may also be configured to block the explosion-proof valve 310, or the second through hole 252 may avoid the explosion-proof valve 310. As an example, the first through hole 251 is configured to expose at least two explosion-proof valves 310, and the second through hole 252 is configured to expose at most one explosion-proof valve 310; exemplarily, each through hole is configured to expose at least two explosion-proof valves 310. Compared with the embodiment in which one through hole exposes one explosion-proof valve 310, the embodiment in which one through hole exposes at least two explosion-proof valves 310 is beneficial to improving the flexibility of the separator 230 in the CCS; on the one hand, the battery cell 300 will expand and contract during the charge and discharge process, especially in high-energy density batteries, this phenomenon is more obvious, and the separator 230 with better flexibility can better follow the deformation of the battery cell 300, avoiding the rupture or damage of the separator 230 caused by the expansion of the battery cell 300, and ensuring that the separator 230 always maintains a good isolation effect. On the other hand, when the battery module with the battery cell 300 is subjected to vibration and impact, the separator 230 with better flexibility can play a better buffering role, which is beneficial to absorbing vibration energy, thereby reducing the risk of damage to the battery cell 300 and improving the stability of the battery module, such as the energy storage battery device 100.

[0086] Exemplarily, the separator 230 is provided with an empty slot corresponding to the through hole, and the empty slot correspondingly exposes the through hole, so that the empty slot cooperates with the corresponding through hole to jointly expose the explosion-proof valve 310 of the battery cell 300 connected to the conductive aluminum row 210; and the separator 230 is provided with a protrusion 231 at the edge of the empty slot, and the protrusion 231 is embedded in the first through hole 251. With such a design, on the one hand, by providing the protrusion 231 on the separator 230 to separate two adjacent explosion-proof valves 310, in the case of thermal runaway of the battery cell 300, the thermal runaway or damage of adjacent battery cells 300 can be retarded. On the other hand, at least two through holes on the circuit board 250 are configured to be recognized by the charge-coupled element detection device, ensuring that the circuit board can be correctly installed during the assembly process, preventing failures caused by assembly errors, and cooperating with the protrusion 231 of the separator 230 being embedded in the first through hole 251, further enhancing the assembly accuracy and preventing incorrect connection between the circuit board and the conductive aluminum row 210. On the further hand, the protrusion 231 is configured to isolate adjacent explosion-proof valves 310. Combining with the embodiment having an empty slot, it not only provides a buffer space but also prevents mutual interference between explosion-proof valves, further improving the safety of the battery connection system 200 of the energy storage battery, thereby improving the safety of the energy storage battery device 100 using the battery connection system 200 of the energy storage battery. On yet another hand, the cooperative design of the through hole and the protrusion 231 makes the assembly process more intuitive and fast, reducing the assembly time and complexity, and by preventing assembly errors and ensuring the accessibility of the explosion-proof valve, reducing the risk of system failures caused by assembly errors or explosion-proof valve failures.

[0087] In some embodiments, such as Figure 11 and Figure 12 shown, the battery connection system 200 of the energy storage battery further includes a wire harness 240 connecting the circuit board 250 and the battery cells 300, for transmitting the electrical signals of each battery cell 300 to the circuit board 250. As an example, Figure 11 in the shown embodiment, the battery connection system 200 of the energy storage battery further includes a fixing member 280 for fixing each battery cell 300 to each other.

[0088] In some embodiments, an electrical device includes the energy storage battery device 100 of any embodiment. It can be understood that since the electrical device includes the energy storage battery device 100 of any embodiment, it also has the corresponding beneficial effects of the energy storage battery device 100 of any embodiment, as well as the corresponding beneficial effects of the energy storage battery device 100 using the battery connection system 200 of the energy storage battery of any embodiment, which will not be elaborated here. As an example, the electrical device includes a solar power generation system, a wind power generation system, a power grid peak shaving and frequency modulation device, a standby power supply, an uninterruptible power supply, etc.

[0089] It should be noted that other embodiments of the present application further include a battery connection system, an energy storage battery device, and an electrical equipment of an energy storage battery that can be implemented formed by combining the technical features in the above embodiments with each other.

[0090] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0091] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A battery connection system (200) for an energy storage battery, characterized in that: including a conductive aluminum busbar (210); The conductive aluminum bar (210) comprises a first power connection piece (211) and a second power connection piece (212); The first power connection piece (211) and the second power connection piece (212) have first different specifications, and the first different specifications are configured to prevent foolishness in the assembly of the battery connection system (200) of the energy storage battery; Wherein, the first power connection portion (221) of the first power connection member (211) and the second power connection portion (222) of the second power connection member (212) have different lengths.

2. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: In an extension direction (260) of the conductive aluminum bar (210) or in a width direction (270) perpendicular to the extension direction (260), a length difference between the first power connection portion (221) and the second power connection portion (222) is greater than a preset value, the preset value being the sum of a length tolerance of the conductive aluminum bar (210) and twice the fitting clearance.

3. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first power connection member (211) is configured as the positive electrode of the conductive aluminum bar (210), the second power connection member (212) is configured as the negative electrode of the conductive aluminum bar (210), and the length of the first power connection portion (221) is greater than the length of the second power connection portion (222).

4. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first power connection piece (211) and the second power connection piece (212) have different shapes; or, The first power connection portion (221) and the second power connection portion (222) have different shapes.

5. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first power connection piece (211) and the second power connection piece (212) have different positioning structures (214), wherein the positioning structures include a convex portion and a concave portion.

6. The battery connection system (200) of the energy storage battery according to claim 5, characterized in that: The positioning structure passes through the first power connection piece (211) and the second power connection piece (212); or, the positioning structure is located at an edge of the first power connection piece (211) and an edge of the second power connection piece (212).

7. The battery connection system (200) of the energy storage battery according to claim 5, characterized in that: The first power connection portion (221) and the second power connection portion (222) have different positioning structures; Wherein, the positioning structure runs through the first power connection portion (221) and the second power connection portion (222); or, the positioning structure is located at an edge of the first power connection portion (221) and an edge of the second power connection portion (222).

8. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The battery connection system (200) for the energy storage battery further includes a circuit board (250); Furthermore, the circuit board (250) is provided with at least two through holes, and at least two of the through holes are configured to be identified by a charge coupled element detection device, so as to serve as a foolproofing measure for assembling the circuit board (250).

9. The battery connection system (200) of the energy storage battery according to claim 8, characterized in that: At least two of the through holes present different shapes in different sequences along the extension direction (260) of the conductive aluminum row (210).

10. The battery connection system (200) of the energy storage battery according to claim 8, characterized in that: The through holes comprise a first through hole (251) and a second through hole (252), wherein the first through hole (251) and the second through hole (252) have different numbers, different position distributions or second different specifications, so as to match the first power connection piece (211) and the second power connection piece (212) to prevent foolishness in the assembly of the battery connection system (200) of the energy storage battery.

11. The battery connection system (200) of the energy storage battery according to claim 8, characterized in that: The through hole is configured to expose the explosion-proof valve (310) of the battery cell (300) to which the conductive aluminum busbar (210) is connected.

12. The battery connection system (200) of the energy storage battery according to claim 11, characterized in that: The through hole comprises a first through hole (251) and a second through hole (252); the first through hole (251) and the second through hole (252) have different areas so as to expose different numbers of the explosion-proof valves (310).

13. The battery connection system (200) of the energy storage battery according to claim 11, characterized in that: The through hole comprises a first through hole (251) and a second through hole (252), wherein the first through hole (251) is configured to expose all explosion-proof valves (310) of the battery cell (300) to which the conductive aluminum bar (210) is connected.

14. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The battery connection system (200) for the energy storage battery further comprises an isolation plate (230), wherein the isolation plate (230) is arranged on the conductive aluminum bar (210).

15. The battery connection system (200) of the energy storage battery according to claim 14, characterized in that: The isolation plate (230) has an isolation shape corresponding to the first power connection piece (211) and the second power connection piece (212), and the isolation shape is configured to prevent foolishness in the assembly of the battery connection system (200) of the energy storage battery.

16. The battery connection system (200) of the energy storage battery according to claim 14, characterized in that: The battery connection system (200) for the energy storage battery further comprises a circuit board (250), the circuit board (250) being provided with at least two through holes, the at least two through holes being configured to be identified by a charge coupled device detection device, so as to serve as a foolproofing for assembly of the circuit board (250); At least one of the through holes is a first through hole (251), and the first through hole (251) is configured to expose at least two explosion-proof valves (310) of the battery cell (300) to which the conductive aluminum bar (210) is connected; The isolation plate (230) is provided with a protrusion (231), the protrusion (231) is embedded in the first through hole (251), and the protrusion (231) is configured to isolate the adjacent explosion-proof valve (310).

17. The battery connection system (200) of the energy storage battery according to claim 16, characterized in that: The circuit board (250) is arranged on the isolation plate (230) and is located between the isolation plate (230) and the conductive aluminum bar (210).

18. An energy storage battery device (100), characterized in that: A battery connection system (200) comprising a battery cell (300), an end plate (400), and an energy storage battery according to any one of claims 1 to 17; The conductive aluminum busbar (210) of the battery connection system (200) of the energy storage battery is connected to the electrode (320) of the battery cell (300); The end plate (400) is provided with a first power connection base (411) and a second power connection base (421); The first power connection piece (211) of the conductive aluminum bar (210) is mounted on the first power connection base (411), and the second power connection piece (212) of the conductive aluminum bar (210) is mounted on the second power connection base (421); The first power connection base (411) and the second power connection base (421) have different assembly lengths so as to adapt to the first power connection portion (221) of the first power connection piece (211) and the second power connection portion (222) of the second power connection piece (212).

19. The energy storage battery device (100) according to claim 18, characterized in that: The end plate (400) is further provided with an insert (430), and the first power connection base (411) and the second power connection base (421) respectively achieve different assembly lengths through different inserts (430); The first power connection portion (221) is arranged on the first power connection base (411) via an insert (430), and the second power connection portion (222) is arranged on the second power connection base (421) via another insert (430).

20. An electrical equipment, characterized in that: Comprising the energy storage battery device (100) as claimed in any one of claims 18 to 19.

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