Aluminum alkali liquor flow battery system

Abstract

The utility model discloses an aluminum lye flow battery system, which belongs to the field of aluminum lye flow batteries and comprises a battery liquid tank, a liquid storage cavity is formed in the battery liquid tank, and the top surface of the battery liquid tank is constructed as a mounting surface; the battery pack is arranged on the mounting surface; the pipeline assembly is suitable for communicating the liquid storage cavity with the battery pack; the pipeline assembly is suitable for driving the electrolyte in the liquid storage cavity to enter the battery pack. According to the aluminum lye flow battery system designed by the utility model, the battery pack is arranged on the mounting surface of the battery liquid box, so that the integration of the battery liquid box, the battery pack and the pipeline assembly is realized, the area and the space occupied by the aluminum lye flow battery assembly during mounting are reduced, and the layout of other parts is facilitated; and meanwhile, the use of connecting pieces can be reduced, so that liquid leakage risk points are reduced, the liquid leakage risk of the aluminum alkali liquid flow battery assembly is reduced, and the safety coefficient of the aluminum alkali liquid flow battery assembly is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum-alkali liquid flow batteries, and in particular relates to an aluminum-alkali liquid flow battery system. Background Art

[0002] In the related art, in the aluminum-alkali liquid flow battery assembly, the circulation of the electrolyte is: battery liquid tank-pipe assembly-battery group-pipe assembly-battery liquid tank, and the electrolyte undergoes a chemical reaction in the battery group and discharges. In the prior art, the distance between the battery liquid tank and the battery group is large, resulting in a large installation space for the aluminum-alkali liquid flow battery assembly, increasing the difficulty of layout of the remaining components. At the same time, the pipeline assembly has more connectors, resulting in more leakage risk points in the aluminum-alkali liquid flow battery assembly, and the aluminum-alkali liquid flow battery assembly has a high risk of leakage. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose an aluminum-alkali liquid flow battery system. According to the aluminum-alkali liquid flow battery system designed by the utility model, by arranging a battery pack on the mounting surface of the battery liquid tank, the integration of the battery liquid tank, the battery pack and the pipeline assembly is realized, the area and space occupied by the aluminum-alkali liquid flow battery assembly during installation are reduced, the layout of other components is facilitated, and at the same time, the use of connectors can be reduced, thereby reducing the risk points of leakage, reducing the risk of leakage of the aluminum-alkali liquid flow battery assembly, and improving the safety factor of the aluminum-alkali liquid flow battery assembly.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] The utility model provides an aluminum-alkali liquid flow battery system, comprising: a battery liquid box, wherein a liquid storage cavity is formed in the battery liquid box, and the top surface of the battery liquid box is configured as a mounting surface; a battery pack, wherein the battery pack is arranged on the mounting surface; a pipeline assembly, wherein the pipeline assembly is respectively connected to the battery liquid box and the battery pack, and the pipeline assembly is suitable for connecting the liquid storage cavity with the battery pack; wherein the pipeline assembly is suitable for driving the electrolyte in the liquid storage cavity to enter the battery pack.

[0006] According to the aluminum-alkali liquid flow battery system of the present invention, by constructing the top surface of the battery liquid tank as a mounting surface and arranging the battery pack on the mounting surface, the battery liquid tank, the battery pack and the pipeline assembly are integrated, thereby improving the structural compactness of the aluminum-alkali liquid flow battery system, reducing the installation area occupied by the aluminum-alkali liquid flow battery system, facilitating the layout of other components, shortening the length of the pipeline assembly, reducing the production cost of the aluminum-alkali liquid flow battery system, and reducing the use of connectors, thereby reducing the risk points of leakage, reducing the risk of leakage during operation of the aluminum-alkali liquid flow battery system, and improving the safety factor of the aluminum-alkali liquid flow battery system.

[0007] Furthermore, the battery pack is provided with a total liquid inlet and a total liquid outlet, and the pipeline assembly includes: a first connecting piece, the first connecting piece is suitable for connecting the liquid storage chamber and the total liquid inlet; a second connecting piece, the second connecting piece is suitable for connecting the liquid storage chamber and the total liquid outlet; wherein the first connecting piece and / or the second connecting piece are suitable for driving the electrolyte in the liquid storage chamber into the battery pack.

[0008] Furthermore, a first mounting port connected to the liquid storage chamber is provided on the mounting surface, and the second connecting piece is provided on the mounting surface and is suitable for connecting the first mounting port with the total liquid outlet; a side surface adjacent to the mounting surface is constructed as a connecting surface, and a second mounting port connected to the liquid storage chamber is provided on the connecting surface, and the first connecting piece is suitable for connecting the second mounting port with the total liquid inlet.

[0009] Furthermore, at least a portion of the connecting surface is recessed toward the liquid storage cavity to form a recessed portion, the recessed portion extends to the mounting surface, and the second mounting port is disposed at the bottom of the recessed portion.

[0010] Furthermore, the total liquid inlet and the total liquid outlet are both arranged toward the connecting surface, and the total liquid inlet is located below the total liquid outlet.

[0011] Further, the first connecting piece includes: a first pipeline, one end of which is connected to the total liquid inlet; a water pump, which is suitable for connecting the other end of the first pipeline to the second installation port; wherein the second connecting piece is constructed as a gas-liquid separator.

[0012] Furthermore, it also includes: a heat sink, which is arranged on the top of the battery pack.

[0013] Furthermore, it also includes: an electronic control component, which is connected to the battery pack and is arranged on a side of the battery pack away from the pipeline component.

[0014] Furthermore, a third mounting port communicating with the liquid storage cavity is provided on the mounting surface, and the battery system further comprises: a liquid adding pipe, which is provided on the mounting surface and communicated with the third mounting port.

[0015] Furthermore, the battery pack includes: a battery cell, wherein the battery cell is constructed to be a plurality of battery cells stacked in sequence in the thickness direction, each of the battery cells is provided with a liquid inlet and a liquid outlet, the liquid inlet of each of the battery cells is connected to each other, and the liquid outlet of each of the battery cells is connected to each other; wherein the liquid inlet and the liquid outlet of one of the battery cells located at the end are respectively connected to the pipeline assembly.

[0016] Other advantages, objectives and features of the utility model will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:

[0018] Figure 1 It is a front view of the aluminum alkaline liquid flow battery system of the present invention;

[0019] Figure 2 It is a right side view of the aluminum alkaline liquid flow battery system of the present invention;

[0020] Figure 3 It is a left side view of the aluminum alkaline liquid flow battery system of the present invention;

[0021] Figure 4 A bottom view of the aluminum-alkali liquid flow battery system of the present invention;

[0022] Figure 5 A top view of the aluminum-alkali liquid flow battery system of the present invention;

[0023] Figure 6 It is a rear view of the aluminum-alkaline liquid flow battery system of the present invention.

[0024] The following are marked in the accompanying drawings:

[0025] 1. Aluminum alkaline flow battery system;

[0026] 10. battery fluid tank; 11. recessed portion;

[0027] 20. Battery pack;

[0028] 30. Pipeline assembly; 31. First connecting piece; 311. Water pump; 312. First pipeline; 32. Second connecting piece;

[0029] 40. Heat sink; 50. Electronic control component; 60. Liquid filling pipe. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0031] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other examples, in order to avoid obscuring the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0032] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] like Figure 1-Figure 6 As shown, the utility model provides an aluminum-alkali liquid flow battery system 1, comprising: a battery liquid tank 10, a battery pack 20 and a pipeline assembly 30, wherein a liquid storage cavity is formed in the battery liquid tank 10, the top surface of the battery liquid tank 10 is configured as a mounting surface, the battery pack 20 is arranged on the mounting surface, the pipeline assembly 30 is respectively connected to the battery liquid tank 10 and the battery pack 20, and the pipeline assembly 30 is suitable for connecting the liquid storage cavity with the battery pack 20; wherein the pipeline assembly 30 is suitable for driving the electrolyte in the liquid storage cavity into the battery pack 20.

[0036] In some embodiments, the top surface of the battery liquid tank 10 is constructed as a mounting surface, and a battery pack 20 is arranged on the mounting surface. A liquid storage cavity is arranged in the battery liquid tank 10. The battery pack 20 includes a plurality of battery cells, and a reaction space is arranged in each battery cell. Each battery cell is connected in series and / or in parallel to form a battery pack 20. The reaction spaces of each battery cell are connected to each other and are jointly constructed as a working space. The pipeline assembly 30 is suitable for being connected to the reaction space of one of the battery cells, and the pipeline assembly 30 is suitable for being connected to the liquid storage cavity.

[0037] It can be understood that when the aluminum-alkali liquid flow battery system 1 is working, the electrolyte in the liquid storage chamber can enter the working space through the pipeline assembly 30, and undergo a chemical reaction in each reaction space to discharge, and its discharge chemical formula is: 4Al+3O2+6H2O+4KOH=4KAl(OH)4. The electrolyte after the reaction flows back to the liquid storage chamber through the pipeline assembly 30, thereby completing the circulation of the electrolyte.

[0038] It is worth noting that in some existing technologies, the battery liquid tank and the battery pack are separately arranged and fixed at preset positions, which leads to a chaotic layout of the aluminum-alkali liquid flow battery system and an excessively large area occupied after the layout, which makes it inconvenient to install the remaining components. At the same time, the separate arrangement of the battery liquid tank and the battery pack leads to a longer distance between the battery liquid tank and the battery pack, which leads to a longer size of the pipeline assembly. The longer pipeline assembly will result in the need for multiple connectors between the pipeline assemblies, which will increase the risk points of leakage and increase the cost of the pipeline assembly, making the production cost of the aluminum-alkali liquid flow battery system higher.

[0039] It can be understood that the present application integrates the battery tank 10 and the battery pack 20 by setting the battery tank 10 on the top of the battery tank 10, so that the structure of the aluminum-alkali liquid flow battery system 1 is more compact, and at the same time, the aluminum-alkali liquid flow battery system 1 only needs to occupy the installation area of ​​the battery tank 10 during installation, thereby reducing the installation area of ​​the aluminum-alkali liquid flow battery system 1 and facilitating the layout of other components. At the same time. The integration of the battery tank 10 and the battery pack 20 can shorten the size of the pipeline assembly 30, thereby reducing the use of connectors, thereby reducing the risk of leakage, reducing the risk of leakage during the operation of the aluminum-alkali liquid flow battery system 1, and improving the safety factor of the aluminum-alkali liquid flow battery system 1. At the same time, the shortening of the size of the pipeline assembly 30 can reduce the production cost of the aluminum-alkali liquid flow battery system 1 and improve the production efficiency of the enterprise.

[0040] According to the aluminum-alkali liquid flow battery system 1 of the present invention, by constructing the top surface of the battery liquid tank 10 as a mounting surface, and arranging the battery pack 20 on the mounting surface, the battery liquid tank 10, the battery pack 20 and the pipeline assembly 30 are integrated, thereby improving the structural compactness of the aluminum-alkali liquid flow battery system 1, reducing the installation area occupied by the aluminum-alkali liquid flow battery system 1, facilitating the layout of other components, shortening the length of the pipeline assembly 30, reducing the production cost of the aluminum-alkali liquid flow battery system 1, and reducing the use of connectors, thereby reducing the risk points of leakage, reducing the risk of leakage during operation of the aluminum-alkali liquid flow battery system 1, and improving the safety factor of the aluminum-alkali liquid flow battery system 1.

[0041] Embodiment 2:

[0042] In this embodiment, based on the first embodiment, the battery pack 20 is provided with a total liquid inlet and a total liquid outlet, and the pipeline assembly 30 includes: a first connecting piece 31 and a second connecting piece 32, the first connecting piece 31 is suitable for connecting the liquid storage chamber and the total liquid inlet, and the second connecting piece 32 is suitable for connecting the liquid storage chamber and the total liquid outlet; wherein the first connecting piece 31 and / or the second connecting piece 32 is suitable for driving the electrolyte in the liquid storage chamber into the battery pack 20.

[0043] In some embodiments, the two ends of the first connecting piece 31 are connected to the battery pack 20 and the battery liquid tank 10, and the two ends of the first connecting piece 31 are connected to the total liquid inlet and the liquid storage cavity, respectively, and the two ends of the second connecting piece 32 are connected to the battery pack 20 and the battery liquid tank 10, and the two ends of the second connecting piece 32 are connected to the total liquid outlet and the liquid storage cavity. Therefore, when the aluminum-alkali liquid flow battery system 1 is working, the circulation of the electrolyte is: battery liquid tank 10-first connecting piece 31-battery pack 20-second connecting piece 32-battery liquid tank 10.

[0044] It is understandable that the first connecting piece 31 and / or the second connecting piece 32 are suitable for driving the electrolyte in the liquid storage chamber to enter the battery pack 20. Here, the first connecting piece 31 can drive the electrolyte to move to ensure the normal circulation of the electrolyte; it can also be that the second connecting piece 32 drives the electrolyte to move to ensure the normal circulation of the electrolyte; it can also be that the first connecting piece 31 and the second connecting piece 32 jointly drive the electrolyte to move, thereby ensuring the normal circulation of the electrolyte, and then ensuring the normal operation of the aluminum-alkali liquid flow battery system 1, which is not limited here.

[0045] Embodiment three:

[0046] In this embodiment, based on the second embodiment, a first mounting port connected to the liquid storage chamber is provided on the mounting surface, and a second connecting piece 32 is provided on the mounting surface and is suitable for connecting the first mounting port with the total liquid outlet; a side surface adjacent to the mounting surface is constructed as a connecting surface, and a second mounting port connected to the liquid storage chamber is provided on the connecting surface, and the first connecting piece 31 is suitable for connecting the second mounting port with the total liquid inlet.

[0047] In some embodiments, a total liquid inlet and a total liquid outlet are provided on one side of the battery pack 20, and the side of the battery pack 20 provided with the total liquid inlet is oriented in the same direction as the connection surface. During assembly, one end of the first connecting member 31 is connected to the battery pack 20 and communicated with the total liquid inlet, and the other end of the first connecting member 31 is connected to the battery liquid tank 10 and communicated with the second installation port. The first connecting member 31 has a simple structure and can directly connect the total liquid inlet with the second installation port.

[0048] Similarly, one end of the second connecting piece 32 is connected to the battery pack 20 and communicated with the total liquid outlet, and the other end of the second connecting piece 32 can directly extend toward the mounting surface and communicate with the first mounting port. The second connecting piece 32 has a simple structure and can directly connect the total liquid outlet with the first mounting port. Thus, the above arrangement can simplify the structure of the first connecting piece 31 and the second connecting piece 32, improve the production efficiency of the pipeline assembly 30, avoid the use of connectors, reduce the risk of leakage, and reduce the risk of leakage when the aluminum-alkali liquid flow battery system 1 is working.

[0049] According to some embodiments of the utility model, at least a portion of the connection surface is recessed toward the liquid storage cavity to form a recessed portion 11, the recessed portion 11 extends to the mounting surface, and the second mounting port is provided at the bottom of the recessed portion 11. It can be understood that a recessed portion 11 is formed on the connection surface, and the recessed portion 11 extends to the mounting surface, and a second mounting port is provided at the bottom of the recessed portion 11. Thus, after the first connecting member 31 is connected to the battery liquid tank 10 and communicated with the second mounting port, at least a portion of the first connecting member 31 can be accommodated in the recessed portion 11, and the first connecting member 31 can extend toward the battery pack 20 in the recessed portion 11, so as to avoid the first connecting member 31 protruding from the battery liquid tank 10, thereby avoiding damage to the first connecting member 31 when the battery liquid tank 10 is hit, thereby improving the protection of the first connecting member 31.

[0050] According to some embodiments of the present invention, the total liquid inlet and the total liquid outlet are both arranged toward the connection surface, and the total liquid inlet is located below the total liquid outlet. It is understandable that the total liquid inlet and the total liquid outlet are both arranged toward the connection surface to simplify the structure of the first connecting member 31 and the second connecting member 32, thereby improving the production efficiency of the pipeline assembly 30.

[0051] The total liquid inlet is connected to the second mounting port through the first connecting piece 31, and the second mounting port is formed with a connecting surface (the connecting surface is adjacent to the mounting surface and is constructed as a side surface, that is, the second mounting port is located below the first mounting port). Therefore, by making the total liquid inlet be located below the total liquid outlet, the distance between the total liquid inlet and the second mounting port can be shortened, thereby shortening the length of the first connecting piece 31.

[0052] At the same time, the above-mentioned arrangement can increase the height difference between the total liquid outlet and the second installation port, so that the electrolyte has greater kinetic energy when it flows out of the total liquid outlet and falls into the battery liquid tank 10, thereby promoting the circulation of the electrolyte and improving the output power of the aluminum-alkali liquid flow battery system 1.

[0053] According to some embodiments of the utility model, the first connecting piece 31 includes: a first pipe 312 and a water pump 311, one end of the first pipe 312 is connected to the total liquid inlet, and the water pump 311 is suitable for connecting the other end of the first pipe 312 to the second installation port; wherein the second connecting piece 32 is constructed as a gas-liquid separator.

[0054] It is understandable that the water pump 311 is disposed in the recessed portion 11 and communicated with the second mounting port, one end of the first pipe 312 is communicated with the total liquid inlet, and the other end of the first pipe 312 extends directly toward the water pump 311 and communicates with the water pump 311, and the water pump 311 is suitable for driving the electrolyte to move to achieve electrolyte circulation. The recessed portion 11 can prevent the water pump 311 from protruding from the surface of the battery liquid tank 10, thereby preventing the battery liquid tank 10 from being damaged when it is hit, thereby improving the protection of the water pump 311.

[0055] The second connecting piece 32 is constructed as a gas-liquid separator. A side reaction will also occur in the reaction space. The reaction formula is: 2Al+6H2O=2Al(OH)3↓+3H2↑. The side reaction will produce hydrogen. When the hydrogen is separated from the electrolyte and leaves the circulation, it will take away some water and other media. The loss of these media will cause the electrical performance indicators of the low-power aluminum alkali liquid flow battery pack 20 to decrease. When the electrolyte that has completed the reaction enters the liquid storage chamber through the gas-liquid separator, the hydrogen and the electrolyte can be separated in the gas-liquid separator (the electrolyte is separated from the hydrogen during the falling process in the gas-liquid separator). Therefore, the above-mentioned setting can extend the falling distance in the electrolyte gas-liquid separator, so that the electrolyte can be better separated from the hydrogen.

[0056] At the same time, it is worth mentioning that the aluminum-alkali liquid flow battery system 1 of the present application realizes the integration of the battery liquid tank 10, the battery pack 20, the water pump 311, the first water pipe and the gas-liquid separator. The aluminum-alkali liquid flow battery system 1 has a higher degree of integration, which further reduces the area and space occupied by the aluminum-alkali liquid flow battery system 1 during installation. At the same time, the integrated aluminum-alkali liquid flow battery system 1 is more convenient to install.

[0057] Embodiment 4:

[0058] In this embodiment, based on the first embodiment, the aluminum-alkali liquid flow battery system 1 further includes: a heat sink 40, which is arranged on the top of the battery pack 20. It is understandable that the heat sink 40 can be constructed as a heat dissipation fan or a water cooling plate, etc., which is not limited here. The heat sink 40 is arranged above the battery pack 20 and connected to the battery pack 20, which further improves the integration of the aluminum-alkali liquid flow battery system 1. At the same time, the above arrangement can also optimize the heat dissipation and ventilation, ensure the temperature of the battery pack 20 during operation, and improve the working stability of the aluminum-alkali liquid flow battery system 1.

[0059] Embodiment five:

[0060] In this embodiment, based on the first embodiment, the aluminum-alkali liquid flow battery system 1 further includes: an electric control component 50, which is connected to the battery pack 20 and is arranged on the side of the battery pack 20 away from the pipeline component 30. It can be understood that the aluminum-alkali liquid flow battery system 1 of the present application also integrates the electric control component 50, and the electric control component 50 is arranged on the side of the battery pack 20 away from the pipeline component 30, so as to avoid the electric control component 50 and the pipeline component 30 from interfering with each other during installation, thereby improving the assembly convenience and assembly efficiency of the aluminum-alkali liquid flow battery system 1.

[0061] Embodiment six:

[0062] In this embodiment, on the basis of the first embodiment, a third mounting port connected to the liquid storage chamber is provided on the mounting surface, and the battery system further includes: a liquid filling tube 60, which is provided on the mounting surface and connected to the third mounting port. It can be understood that a third mounting port is also provided on the mounting surface, and the liquid filling tube 60 is provided on the mounting surface and connected to the third mounting port. After the aluminum-alkali liquid flow battery system 1 is assembled, the operator can add electrolyte to the liquid storage chamber through the liquid filling tube 60. Thus, the electrolyte can be added after the aluminum-alkali liquid flow battery system 1 is assembled, which can avoid the electrolyte from affecting the assembly of the aluminum-alkali liquid flow battery system 1 and improve the assembly efficiency of the aluminum-alkali liquid flow battery system 1. At the same time, when the electrolyte is consumed to a certain level, the operator can replenish the electrolyte into the liquid storage chamber through the liquid filling tube 60.

[0063] Embodiment seven:

[0064] In this embodiment, on the basis of the first embodiment, the battery pack 20 includes: a battery cell, which is a plurality of battery cells stacked in sequence in the thickness direction, each battery cell is provided with a liquid inlet and a liquid outlet, the liquid inlets of each battery cell are connected to each other, and the liquid outlets of each battery cell are connected to each other; wherein the liquid inlet and the liquid outlet of a battery cell located at the end are respectively connected to the pipeline assembly 30. It can be understood that the plurality of battery cells are stacked in sequence in the thickness direction, so that the battery pack 20 can facilitate the connection of the reaction spaces in the plurality of battery cells while ensuring its own compact structure, thereby facilitating the assembly of the battery pack 20 and improving the assembly efficiency of the aluminum-alkali liquid flow battery system 1.

[0065] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. An aluminum alkaline liquid flow battery system, characterized in that: include: A battery liquid box (10), wherein a liquid storage cavity is formed in the battery liquid box (10), and the top surface of the battery liquid box (10) is configured as a mounting surface; A battery pack (20), the battery pack (20) being arranged on the mounting surface; A pipeline assembly (30), the pipeline assembly (30) being connected to the battery liquid tank (10) and the battery pack (20) respectively, and the pipeline assembly (30) being suitable for connecting the liquid storage chamber with the battery pack (20); wherein The pipeline assembly (30) is suitable for driving the electrolyte in the liquid storage chamber to enter the battery pack (20).

2. The aluminum-alkali liquid flow battery system according to claim 1, characterized in that: The battery pack (20) is provided with a total liquid inlet and a total liquid outlet, and the pipeline assembly (30) comprises: A first connecting piece (31), the first connecting piece (31) being adapted to connect the liquid storage chamber and the main liquid inlet; A second connecting piece (32), wherein the second connecting piece (32) is suitable for connecting the liquid storage chamber and the total liquid outlet; The first connecting piece (31) and / or the second connecting piece (32) are suitable for driving the electrolyte in the liquid storage chamber to enter the battery pack (20).

3. The aluminum-alkali liquid flow battery system according to claim 2, characterized in that: The mounting surface is provided with a first mounting port communicating with the liquid storage cavity, and the second connecting member (32) is provided on the mounting surface and is suitable for connecting the first mounting port with the total liquid outlet; A side surface adjacent to the mounting surface is configured as a connecting surface, on which a second mounting port communicating with the liquid storage chamber is provided, and the first connecting member (31) is suitable for connecting the second mounting port with the total liquid inlet.

4. The aluminum-alkali liquid flow battery system according to claim 3, characterized in that: At least part of the connecting surface is recessed toward the liquid storage cavity to form a recessed portion (11), the recessed portion (11) extends to the mounting surface, and the second mounting opening is arranged at the bottom of the recessed portion (11).

5. The aluminum-alkali liquid flow battery system according to claim 3, characterized in that: The total liquid inlet and the total liquid outlet are both arranged toward the connecting surface, and the total liquid inlet is located below the total liquid outlet.

6. The aluminum-alkali liquid flow battery system according to claim 3, characterized in that: The first connecting member (31) comprises: a first pipeline (312), one end of the first pipeline (312) being in communication with the main liquid inlet; a water pump (311), wherein the water pump (311) is adapted to connect the other end of the first pipe (312) to the second installation port; The second connecting piece (32) is configured as a gas-liquid separator.

7. The aluminum-alkali liquid flow battery system according to claim 1, characterized in that: Also includes: A heat sink (40) is arranged on the top of the battery pack (20).

8. The aluminum-alkali liquid flow battery system according to claim 1, characterized in that: It also comprises an electric control component (50), wherein the electric control component (50) is connected to the battery pack (20) and is arranged on a side of the battery pack (20) away from the pipeline component (30).

9. The aluminum-alkali liquid flow battery system according to claim 1, characterized in that: The mounting surface is provided with a third mounting port communicating with the liquid storage cavity, and the battery system further comprises a liquid adding pipe (60), the liquid adding pipe (60) being provided on the mounting surface and communicating with the third mounting port.

10. The aluminum alkaline liquid flow battery system according to claim 1, characterized in that: The battery pack (20) comprises: A battery cell, wherein the battery cell is constructed to be stacked in sequence in a thickness direction, each of the battery cells is provided with a liquid inlet and a liquid outlet, the liquid inlets of each of the battery cells are connected to each other, and the liquid outlets of each of the battery cells are connected to each other; wherein A liquid inlet and a liquid outlet of a battery cell located at the end are respectively connected to the pipeline assembly (30).

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