Aluminum alkali liquor flow battery assembly

Abstract

The utility model discloses an aluminum lye flow battery assembly, which belongs to the technical field of aluminum lye flow batteries, and comprises a plurality of single batteries stacked in a first direction, each single battery is provided with a liquid inlet and a liquid outlet, and a first connecting part is arranged between the liquid inlet and the liquid outlet; the two end covers are respectively arranged at the two ends of the plurality of battery monomers, and are provided with second connecting parts; the two ends of the first fixing pieces are connected with the two end covers respectively, and the second fixing pieces are matched with the first connecting parts and the second connecting parts so as to fix the two end covers and the battery monomers in the first direction. According to the aluminum alkali liquor flow battery assembly designed by the utility model, the pressure applied to the plurality of battery monomers by the two end covers is more balanced in the radial direction, and gaps among the plurality of battery monomers are avoided, so that unstable matching of liquid inlets and / or liquid outlets among the plurality of battery monomers is avoided; and therefore, the phenomenon of liquid leakage among the plurality of battery monomers is avoided.

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 assembly. Background Art

[0002] In the related art, the aluminum-alkali liquid flow battery includes a plurality of battery cells and end covers located at both ends of the plurality of battery cells. After the plurality of battery cells are stacked, they are arranged on a mounting plane through two end covers. In the prior art, the two end covers are connected by screws, and the plurality of screws are arranged on the periphery of the plurality of battery cells. The two end covers apply pressure to the plurality of battery cells to fix the plurality of battery cells. However, when too many battery cells are stacked, the plurality of battery cells are affected by their own weight, which may cause the battery cells in the middle to be concave and deformed, thereby affecting the sealing of the inlet and outlet liquid interfaces of each battery cell, thereby causing leakage of the aluminum-alkali liquid flow battery. 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 assembly. According to the aluminum-alkali liquid flow battery assembly designed by the utility model, the pressure exerted by the two end covers on the multiple battery cells is more balanced in the radial direction, avoiding the occurrence of gaps between the multiple battery cells, thereby avoiding the unstable matching of the liquid inlets and / or liquid outlets between the multiple battery cells, and further avoiding the phenomenon of leakage between the multiple battery cells.

[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 assembly, comprising: a battery cell, wherein the battery cell is constructed as a plurality of battery cells stacked in a first direction, each of the battery cells is provided with a liquid inlet and a liquid outlet spaced in a second direction and penetrating the battery cell in the first direction, and a first connecting portion is provided between the liquid inlet and the liquid outlet; an end cover, wherein the end cover is constructed as two and respectively arranged at both ends of the plurality of battery cells in the first direction, and the end cover is provided with a second connecting portion directly opposite to the first connecting portion; a first fixing member, wherein the first fixing member is constructed as a plurality of and the two ends are respectively connected to the two end covers, and at least one of the first fixing members is stopped against the outer peripheral walls of the plurality of battery cells; and a second fixing member, wherein the second fixing member is suitable for cooperating with the first connecting portion and the second connecting portion to fix the two end covers to the plurality of battery cells in the first direction.

[0006] According to the aluminum-alkali liquid flow battery assembly of the utility model, the two ends of its multiple first fixing members are respectively connected to the two end covers, so that the two end covers can apply radially outer peripheral pressure to the multiple battery cells, and the second fixing members are respectively matched with the first connecting parts of the multiple battery cells and the second connecting parts of the two end covers, so that the two end covers can apply radially inner pressure to the multiple battery cells. Therefore, through the above-mentioned arrangement, the pressure applied by the two end covers to the multiple battery cells is more balanced in the radial direction, avoiding the occurrence of gaps between the multiple battery cells, thereby avoiding unstable matching of the liquid inlets and / or liquid outlets between the multiple battery cells, and further avoiding leakage between the multiple battery cells, thereby improving the safety factor of the aluminum-alkali liquid flow battery assembly.

[0007] Furthermore, the first connection parts are configured in two, and the two first connection parts are respectively arranged adjacent to the liquid inlet and the liquid outlet.

[0008] Furthermore, among the plurality of first fixing members, one first fixing member is disposed on a side of the liquid outlet away from the first connecting portion, and another first fixing member is disposed on a side of the liquid inlet away from the first connecting portion.

[0009] Furthermore, the battery cell is provided with a connecting tube and a connecting groove on both sides in the first direction, respectively. The connecting tube and the connecting groove are respectively opposite to and connected with the liquid inlet and / or the liquid outlet, and the connecting tube of an adjacent battery cell is accommodated in the connecting groove of another adjacent battery cell.

[0010] Furthermore, one of the end covers is provided with a first communication port and a second communication port, and two communication pipes of the battery cell located at one end are respectively received in the first communication port and the second communication port.

[0011] Furthermore, a first plug and a second plug are provided on the other end cover, and at least parts of the first plug and the second plug are respectively received in the two communicating grooves of the battery cell located at the other end.

[0012] Furthermore, the first connection portion is configured as a first through hole penetrating the battery cell, the second connection portion is configured as a second through hole penetrating the end cover, and at least a portion of the second fixing member is disposed in the first through hole and the second through hole.

[0013] Furthermore, a stop protrusion is provided on the side wall of the battery cell, and the end surface of the free end of the stop protrusion is parallel to the bottom surface of the end cover.

[0014] Furthermore, it also includes: a heat dissipation fan, which is arranged on a side of the plurality of battery cells away from the stop protrusion.

[0015] 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

[0016] 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:

[0017] Figure 1 It is a front view of the aluminum alkaline liquid flow battery assembly of the utility model;

[0018] Figure 2 It is a left side view of the aluminum alkaline liquid flow battery assembly of the utility model;

[0019] Figure 3 It is a right side view of the aluminum alkaline liquid flow battery assembly of the utility model;

[0020] Figure 4 It is a top view of the aluminum alkaline liquid flow battery assembly of the utility model;

[0021] Figure 5 A bottom view of the aluminum alkaline liquid flow battery assembly of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the first end cover of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the second end cover of the utility model;

[0024] Figure 8 It is a schematic diagram of the structure of a battery cell of the utility model;

[0025] Fig. 9 This is a schematic diagram of the structure of the heat dissipation fan of the utility model;

[0026] Fig.10 It is a structural schematic diagram of the second fixing member of the utility model.

[0027] The following are marked in the accompanying drawings:

[0028] 1. Aluminum alkaline flow battery components;

[0029] 10. Battery cell; 11. Liquid inlet; 12. Liquid outlet; 13. First via hole; 14. Connecting pipe; 15. Stop protrusion;

[0030] 21. first end cover; 211. first communication port; 212. second communication port; 22. second end cover; 221. first plug; 222. second plug; 23. second through hole; 24. third through hole;

[0031] 30. First fixing member; 40. Second fixing member; 50. Cooling fan. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Embodiment 1:

[0037] like Figure 1-Figure 10As shown, the utility model provides an aluminum-alkali liquid flow battery assembly 1, comprising: a battery cell 10, an end cover, a first fixing member 30 and a second fixing member 40, the battery cell 10 is constructed as a plurality of battery cells 10 stacked in a first direction, each battery cell 10 is provided with a liquid inlet 11 and a liquid outlet 12 spaced in a second direction and penetrating the battery cell 10 in the first direction, the battery cell 10 is provided with a first connecting portion between the liquid inlet 11 and the liquid outlet 12, the end cover is constructed as two and respectively arranged at both ends of the plurality of battery cells 10 in the first direction, the end cover is provided with a second connecting portion directly opposite to the first connecting portion, the first fixing member 30 is constructed as a plurality of and both ends are connected to the two end covers respectively, at least one first fixing member 30 is stopped against the outer peripheral wall of the plurality of battery cells 10, and the second fixing member 40 is suitable for cooperating with the first connecting portion and the second connecting portion to fix the two end covers and the plurality of battery cells 10 in the first direction.

[0038] In some embodiments, the first direction is parallel to the thickness direction of the battery cell 10, and multiple battery cells 10 are stacked in the first direction. The stacked multiple battery cells 10 have a first end and a second end in the first direction. The end cover is constructed into two and is respectively a first end cover 21 and a second end cover 22. The first end cover 21 is arranged at the first end and stops against the battery cell 10 located at the first end, and the second end cover 22 is arranged at the second end and stops against the battery cell 10 located at the second end.

[0039] The plurality of first fixing members 30 are arranged at intervals in the circumferential direction with the first end cover 21 as the center of the circle, and the ends of the plurality of first fixing members 30 on the same side are respectively connected to the first end cover 21, and the other ends of the plurality of first fixing members 30 on the same side are respectively connected to the second end cover 22, and at least one first fixing member 30 abuts against the outer peripheral wall of the plurality of battery cells 10. It can be understood that the plurality of first fixing members 30 are connected to the first end cover 21 and the second end cover 22 to fix the first end cover 21 and the second end cover 22, so that the first end cover 21 and the second end cover 22 can stably abut against the plurality of battery cells 10, and the first end cover 21 and the second end cover 22 can apply pressure in the first direction to the plurality of battery cells 10, so as to limit the plurality of battery cells 10.

[0040] Each battery cell 10 is provided with a liquid inlet 11 and a liquid outlet 12 penetrating through the battery cell 10 in a first direction. The liquid inlet 11 and the liquid outlet 12 are spaced apart in a second direction. The second direction may be parallel to the width direction of the battery cell 10 or the height direction of the battery cell 10, which is not limited here.

[0041] After the multiple battery cells 10 are stacked in the thickness direction, the liquid inlets 11 of any two adjacent battery cells 10 are opposite and connected, and the liquid outlets 12 of any two adjacent battery cells 10 are opposite and connected. The battery cell 10 is also provided with a first connection portion between the liquid inlet 11 and the liquid outlet 12, and the first end cover 21 and the second end cover 22 are both provided with a second connection portion opposite to the first connection portion, and the second fixing member 40 cooperates with the first connection portions of the multiple battery cells 10 and the second connection portions of the first end cover 21 and the second end cover 22, respectively, so as to fix the multiple battery cells 10, the first end cover 21 and the second end cover 22 in the first direction. It can be understood that after the second fixing member 40 is connected to the first end cover 21 and the second end cover 22, respectively, the first end cover 21 and the second end cover 22 can apply pressure in the first direction to the multiple battery cells 10.

[0042] It is worth noting that, since the plurality of first fixing members 30 are disposed around the periphery of the plurality of battery cells 10, and the two ends are respectively connected to the first end cover 21 and the second end cover 22, the pressure in the first direction applied by the first end cover 21 and the second end cover 22 to the plurality of battery cells 10 is the pressure applied to the radial periphery of the plurality of battery cells 10. The second fixing member 40 is located between the liquid inlet 11 and the liquid outlet 12. After the second fixing member 40 cooperates with the first connection parts of the plurality of battery cells 10 and the second connection parts of the first end cover 21 and the second end cover 22, the pressure in the first direction applied by the first end cover 21 and the second end cover 22 to the plurality of battery cells 10 is the pressure applied to the radial inner part of the plurality of battery cells 10.

[0043] Therefore, the first fixing member 30 and the second fixing member 40 of the present application cooperate to make the pressure exerted by the first end cover 21 and the second end cover 22 on the multiple battery cells 10 more balanced in the radial direction, thereby avoiding gaps between the multiple battery cells 10, thereby avoiding unstable cooperation between the liquid inlet 11 and / or the liquid outlet 12 between any two adjacent battery cells 10, and further avoiding leakage between any two adjacent battery cells 10.

[0044] It is worth mentioning that the second fixing member 40 extends in the first direction, and the second fixing member 40 cooperates with the first connecting parts of the multiple battery cells 10 and the second connecting parts of the first end cover 21 and the second end cover 22 respectively, so that the second fixing member 40 can support the multiple battery cells 10, that is, at least part of the gravity of the multiple battery cells 10 can be transmitted to the first end cover 21 and the second end cover 22 through the second fixing member 40, so as to avoid the battery cells 10 located between the first end cover 21 and the second end cover 22 from being concave due to the action of gravity, that is, the above-mentioned arrangement can avoid the bending of the middle part of the multiple battery cells 10 after stacking, so that the liquid inlet 11 and the liquid outlet 12 of the multiple battery cells 10 can be more stably matched, further avoiding leakage between any two adjacent battery cells 10.

[0045] According to the aluminum-alkali liquid flow battery assembly 1 of the utility model, the two ends of the multiple first fixing members 30 are respectively connected to the two end covers, so that the two end covers can apply radially outer peripheral pressure to the multiple battery cells 10, and the second fixing members 40 are respectively matched with the first connecting parts of the multiple battery cells 10 and the second connecting parts of the two end covers, so that the two end covers can apply radially inner pressure to the multiple battery cells 10. Therefore, through the above-mentioned arrangement, the pressure applied by the two end covers to the multiple battery cells 10 is more balanced in the radial direction, avoiding the occurrence of gaps between the multiple battery cells 10, thereby avoiding unstable matching of the liquid inlets 11 and / or liquid outlets 12 between the multiple battery cells 10, and further avoiding leakage between the multiple battery cells 10, thereby improving the safety factor of the aluminum-alkali liquid flow battery assembly 1.

[0046] Embodiment 2:

[0047] On the basis of the first embodiment, the present embodiment has two first connection parts, and the two first connection parts are respectively arranged adjacent to the liquid inlet 11 and the liquid outlet 12. It can be understood that the first connection parts are two, that is, the second fixing members 40 are two and respectively arranged corresponding to the two first connection parts, one of which is arranged adjacent to the liquid inlet 11, and the other of which is arranged adjacent to the liquid outlet 12, thereby, one of the second fixing members 40 cooperates with at least part of the first fixing member 30 to achieve targeted compression of the outer periphery of the liquid inlet 11 of any two adjacent battery cells 10, wherein the other second fixing member 40 cooperates with at least part of the first fixing member 30 to achieve targeted compression of the outer periphery of the liquid outlet 12 of any two adjacent battery cells 10, thereby ensuring the coordination stability between the liquid inlet 11 and the liquid outlet 12 of any two adjacent battery cells 10, and avoiding leakage between the liquid inlet 11 and the liquid outlet 12 of any two adjacent battery cells 10.

[0048] Embodiment three:

[0049] In this embodiment, based on the second embodiment, among the plurality of first fixing members 30, one first fixing member 30 is arranged at the side of the liquid outlet 12 away from the first connecting portion, and another first fixing member 30 is arranged at the side of the liquid inlet 11 away from the first connecting portion.

[0050] In some embodiments, the connecting line of the liquid inlet 11 and the liquid outlet 12 is constructed as a connecting line. Through the above-mentioned arrangement, the first fixing member 30 and the second fixing member 40 are respectively provided at both ends of the liquid inlet 11 in the extension direction of the connecting line, so that in the extension direction of the connecting line, a clamping force is respectively formed at both ends of the liquid inlets 11 of the multiple battery cells 10, so that the liquid inlets 11 between the multiple battery cells 10 are more stably matched; similarly, through the above-mentioned arrangement, the first fixing member 30 and the second fixing member 40 are respectively provided at both ends of the liquid outlet 12 in the extension direction of the connecting line, so that in the extension direction of the connecting line, a clamping force is respectively formed at both ends of the liquid outlet 12 of the multiple battery cells 10, so that the liquid outlet 12 between the multiple battery cells 10 are more stably matched.

[0051] Embodiment 4:

[0052] In this embodiment, based on the third embodiment, a connecting tube 14 and a connecting groove are respectively provided on both sides of the battery cell 10 in the first direction. The connecting tube 14 and the connecting groove are respectively opposite to and connected with the liquid inlet 11 and / or the liquid outlet 12, and the connecting tube 14 of an adjacent battery cell 10 is accommodated in the connecting groove of another adjacent battery cell 10.

[0053] In some embodiments, a connecting tube 14 and a connecting groove are respectively provided on both sides of the battery cell 10 in the thickness direction. The connecting tube 14 and the connecting groove can be constructed as a one-to-one corresponding pair. In this case, the connecting tube 14 and the connecting groove can respectively correspond to the liquid inlet 11 or the liquid outlet 12; of course, the connecting tube 14 and the connecting groove can be constructed as multiple one-to-one corresponding pairs. In this case, the connecting tube 14 and the connecting groove are respectively provided at both ends of the liquid inlet 11, and the connecting tube 14 and the connecting groove are respectively provided at both ends of the liquid outlet 12.

[0054] It is understandable that the connecting tube 14 of one adjacent battery cell 10 is received in the connecting groove of another adjacent battery cell 10, so as to realize the connection between the liquid inlets 11 or the liquid outlets 12 of any two adjacent battery cells 10. At the same time, after the connecting tube 14 is received in the connecting groove, the inner peripheral wall of the connecting groove can restrict the outer peripheral wall of the connecting tube 14, and the sealing between any two adjacent liquid inlets 11 or liquid outlets 12 is better, and any two adjacent battery cells 10 can restrict each other, thereby preventing the battery cell 10 from being concave due to gravity, and further improving the matching stability of the liquid inlets 11 and the liquid outlets 12 of multiple battery cells 10.

[0055] Preferably, adhesive is provided between the outer circumferential wall of the connecting tube 14 and the inner circumferential wall of the connecting groove, and the adhesive can improve the matching stability between the connecting tube 14 and the connecting groove, and can further ensure the sealing between any two adjacent liquid inlets 11 or liquid outlets 12.

[0056] According to some embodiments of the present invention, a first communication port 211 and a second communication port 212 are provided on one end cover, and two communication pipes 14 of the battery cell 10 at one end are respectively received in the first communication port 211 and the second communication port 212 .

[0057] In some embodiments, the connecting tube extends toward the first end, and the first end cover 21 is provided with a first connecting port 211 and a second connecting port 212 which penetrate the first end cover 21 in a first direction. The two connecting tubes 14 of the battery cell 10 located at the first end are respectively accommodated in the first connecting port 211 and the second connecting port 212, so that the first connecting port 211 and the second connecting port 212 are respectively connected to the liquid inlet 11 or the liquid outlet 12 of the plurality of battery cells 10. Thus, one end of the pipeline assembly is connected to the liquid inlet 11 and the liquid outlet 12, and the other end of the pipeline assembly is connected to the liquid storage chamber of the battery liquid tank, so that the assembly of the aluminum-alkali liquid flow battery assembly 1 can be completed, thereby improving the assembly efficiency of the aluminum-alkali liquid flow battery assembly 1.

[0058] According to some embodiments of the present invention, a first plug 221 and a second plug 222 are provided on the other end cover, and at least parts of the first plug 221 and the second plug 222 are respectively received in two connecting grooves of the battery cell 10 at the other end.

[0059] In some embodiments, the connecting groove extends toward the second end, and the second end cover 22 is provided with a first plug 221 and a second plug 222 extending toward the first end, and the first plug 221 and the second plug 222 are respectively accommodated in two connecting grooves of the battery cell 10 located at the second end, so as to seal the liquid inlet 11 and the liquid outlet 12 of the battery cell 10 located at the second end, thereby preventing the electrolyte from leaking from the liquid inlet 11 or the liquid outlet 12 of the battery cell 10 located at the second end.

[0060] It is worth mentioning that the cooperation between the first fixing member 30 and the second fixing member 40 can also ensure the cooperation stability between the first end cover 21 and the second end cover 22 and the corresponding battery cell 10, thereby ensuring the sealing of the aluminum-alkali liquid flow battery assembly 1, avoiding leakage between the battery cell 10 and the first end cover 21 or the second end cover 22, and improving the safety factor of the aluminum-alkali liquid flow battery assembly 1.

[0061] Embodiment five:

[0062] In this embodiment, based on the first embodiment, the first connection portion is constructed as a first through hole 13 penetrating the battery cell 10, the second connection portion is constructed as a second through hole 23 penetrating the end cover, and at least a portion of the second fixing member 40 is inserted into the first through hole 13 and the second through hole 23.

[0063] In some embodiments, the second fixing member 40 can be constructed as a second screw, which passes through the second through hole 23 of the first end cover 21, the first through holes 13 of multiple battery cells 10, and the second through hole 23 of the second end cover 22 in sequence and is threadedly connected to the nut, so that the first end cover 21 and the second end cover 22 can apply pressure in the first direction to the multiple battery cells 10.

[0064] In other embodiments, the first fixing member 30 can be constructed as a first screw, and a plurality of third through holes 24 facing each other are provided on the first end cover 21 and the second end cover 22. The second screw passes through the third through holes 24 on the first end cover 21 and the second end cover 22 and is threadedly connected to the nut to fix the first end cover 21 and the second end cover 22 in the first direction, so that the first end cover 21 and the second end cover 22 can apply pressure in the first direction to the plurality of battery cells 10.

[0065] Embodiment six:

[0066] In this embodiment, based on the first embodiment, a stop protrusion 15 is disposed on the side wall of the battery cell 10 , and the end surface of the free end of the stop protrusion 15 is parallel to the bottom surface of the end cover.

[0067] In some embodiments, a liquid storage cavity is provided in the battery liquid tank, one end of the pipeline assembly is connected to the liquid storage cavity, and the other end of the pipeline assembly is connected to the liquid inlet 11 and the liquid outlet 12 of one of the battery cells 10. The electrolyte circulates in the direction of battery liquid tank-pipeline assembly-multiple battery cells 10-pipeline assembly-battery liquid tank, and the electrolyte undergoes a chemical reaction in the battery cell 10 to discharge, and the chemical reaction formula is: 4Al+3O2+6H2O+4KOH=4KAl(OH)4.

[0068] It can be understood that when the aluminum-alkali liquid flow battery assembly 1 is installed, the bottom surfaces of the first end cover 21 and the second end cover 22 are respectively abutted against the installation plane. At the same time, since the end surface of the free end of the abutting protrusion 15 is flush with the bottom surfaces of the first end cover 21 and the second end cover 22, the abutting protrusions 15 of the multiple battery cells 10 can be respectively abutted against the installation plane. At this time, the multiple battery cells 10 can be stably supported on the installation plane to prevent the battery cells 10 from being concave due to gravity, so that the liquid inlets 11 and the liquid outlets 12 of the multiple battery cells 10 can be more stably matched, further avoiding leakage between any two adjacent battery cells 10.

[0069] Preferably, the battery cell 10 is provided with a plurality of stop protrusions 15 , and the plurality of stop protrusions 15 are spaced apart from each other, so that after the plurality of battery cells 10 are stacked, a heat dissipation channel is defined between the stop protrusions 15 of the plurality of battery cells 10 , thereby improving the heat dissipation effect of the battery cells 10 .

[0070] According to some embodiments of the utility model, the aluminum-alkali liquid flow battery assembly 1 further includes: a heat dissipation fan 50, which is arranged on a side of the plurality of battery cells 10 away from the stop protrusion 15. It can be understood that the above arrangement can realize heat dissipation of the battery cells 10 in a suction manner, thereby ensuring the heat dissipation effect of the battery cells 10 and optimizing the discharge performance index of the battery cells 10.

[0071] 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 assembly, characterized in that: include: A battery cell (10), wherein the battery cell (10) is configured to be a plurality of battery cells stacked in a first direction, each of the battery cells (10) being provided with a liquid inlet (11) and a liquid outlet (12) spaced apart in a second direction and penetrating the battery cell (10) in the first direction, and the battery cell (10) being provided with a first connection portion between the liquid inlet (11) and the liquid outlet (12); An end cover, the end cover being structured in two pieces and respectively arranged at two ends of the plurality of battery cells (10) in a first direction, the end cover being provided with a second connection portion facing the first connection portion; A first fixing member (30), the first fixing member (30) being constructed in plurality and having two ends respectively connected to the two end covers, and at least one of the first fixing members (30) abutting against the outer peripheral walls of the plurality of battery cells (10); A second fixing member (40), the second fixing member (40) being adapted to cooperate with the first connecting portion and the second connecting portion to fix the two end covers and the plurality of battery cells (10) in a first direction.

2. The aluminum-alkali liquid flow battery assembly according to claim 1, characterized in that: The first connection parts are structured in two parts, and the two first connection parts are respectively arranged adjacent to the liquid inlet (11) and the liquid outlet (12).

3. The aluminum-alkali liquid flow battery assembly according to claim 2, characterized in that: Among the plurality of first fixing members (30), one first fixing member (30) is arranged on a side of the liquid outlet (12) away from the first connecting portion, and another first fixing member (30) is arranged on a side of the liquid inlet (11) away from the first connecting portion.

4. The aluminum-alkali liquid flow battery assembly according to claim 3, characterized in that: A connecting tube (14) and a connecting groove are respectively provided on both sides of the battery cell (10) in a first direction; the connecting tube (14) and the connecting groove are respectively opposite to and connected to the liquid inlet (11) and / or the liquid outlet (12); the connecting tube (14) of an adjacent battery cell (10) is accommodated in the connecting groove of another adjacent battery cell (10).

5. The aluminum alkaline liquid flow battery assembly according to claim 4, characterized in that: One of the end covers is provided with a first communication port (211) and a second communication port (212), and two communication pipes (14) of the battery cell (10) located at one end are respectively accommodated in the first communication port (211) and the second communication port (212).

6. The aluminum-alkaline liquid flow battery assembly according to claim 5, characterized in that: The other end cover is provided with a first plug (221) and a second plug (222), and at least parts of the first plug (221) and the second plug (222) are respectively accommodated in the two communicating grooves of the battery cell (10) located at the other end.

7. The aluminum alkaline liquid flow battery assembly according to claim 1, characterized in that: The first connection portion is configured as a first through hole (13) penetrating the battery cell (10), the second connection portion is configured as a second through hole (23) penetrating the end cover, and at least a portion of the second fixing member (40) is disposed in the first through hole (13) and the second through hole (23).

8. The aluminum alkaline liquid flow battery assembly according to claim 1, characterized in that: The side wall of the battery cell (10) is provided with a stop protrusion (15), and the end surface of the free end of the stop protrusion (15) is parallel to the bottom surface of the end cover.

9. The aluminum-alkaline liquid flow battery assembly according to claim 8, characterized in that: Also includes: A heat dissipation fan (50) is arranged on a side of the plurality of battery cells (10) away from the stop protrusion (15).

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