Energy storage module and energy storage module unit

Abstract

The utility model discloses an energy storage module unit. The energy storage module unit comprises two end pressing plates and a row of single batteries arranged between the two end pressing plates, side baffles located on the two sides of the battery single bodies respectively are further arranged between the two end pressing plates, the two ends of each side baffle are fixedly connected with the two end pressing plates respectively, the bottoms of the side baffles are provided with first lower supporting edges used for being supported on the bottom faces of the battery single bodies, and the tops of the side baffles are provided with first upper pressing edges pressed on the top faces of the battery single bodies. The utility model further discloses a battery module which comprises a battery assembly and a consolidation assembly, and the battery assembly comprises at least two energy storage module units which are arranged side by side; the consolidation assembly comprises an upper frame which sleeves the upper part of the battery assembly and a lower frame which sleeves the lower part of the battery assembly, the upper frame is provided with a second upper pressing edge which is pressed on the top surface of the battery assembly, and the lower frame is provided with a second lower supporting edge which is supported on the bottom surface of the battery assembly; and the upper frame and the lower frame are fixedly connected with the end pressing plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric energy storage, and particularly relates to an energy storage module and an energy storage module unit. Background Art

[0002] With the continuous improvement of China's energy consumption structure, energy storage systems have been widely applied and developed. In some application scenarios, it is required that the energy storage system should have a large capacity, high charge and discharge voltages, and high charge and discharge currents. Therefore, most of the existing electrochemical energy storage systems include several energy storage modules, and each energy storage module is composed of multiple battery monomers.

[0003] With the continuous expansion of the application scenarios of energy storage systems, higher requirements are put forward for the structural performance of energy storage modules, and it is required that the energy storage modules should have strong anti-vibration and anti-drop performance. However, in the existing energy storage systems, the purpose of setting up the energy storage modules is generally to facilitate the series-parallel connection and control of multiple battery monomers in the energy storage modules, and there is a lack of strengthening in terms of structure. Summary of the Invention

[0004] In view of this, the purpose of the utility model is to provide an energy storage module and an energy storage module unit, which can effectively improve the structural strength.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model first proposes an energy storage module unit, which includes two end pressing plates and a row of battery monomers arranged between the two end pressing plates;

[0007] Side baffles are further arranged between the two end pressing plates and on both sides of the battery monomers respectively. The two ends of the side baffles are fixedly connected to the two end pressing plates respectively, and a first lower supporting edge for supporting on the bottom surface of the battery monomer is arranged at the bottom of the side baffle, and a first upper pressing edge for pressing on the top surface of the battery monomer is arranged at the top of the side baffle.

[0008] Furthermore, at least one binding band wound around the end pressing plates and the side baffles is further included.

[0009] Furthermore, first gap channels for the circulation of temperature control medium are respectively arranged between adjacent two battery monomers and between adjacent end pressing plates and battery monomers.

[0010] Furthermore, the first upper pressing edge presses on the edge position of the top surface of the battery monomer, and the first lower pressing edge supports on the edge position of the bottom surface of the battery monomer.

[0011] Further, a gasket assembly for bearing pressure and inhibiting the expansion and deformation of the battery cell is provided in the first gap channel, and the gasket assembly includes a plurality of gaskets.

[0012] Further, the gaskets are arranged in an array, and a first spacing for the circulation of the temperature control medium is provided between two adjacent gaskets.

[0013] Further, the gaskets are arranged in an array, a first spacing for the circulation of the temperature control medium is provided between two adjacent gaskets, and a connecting strip is provided between two adjacent gaskets for connecting the corresponding two gaskets; the thickness of the connecting strip is less than the thickness of the gasket to allow the temperature control medium to flow through.

[0014] Further, the gasket assembly further includes a connecting net, and the connecting net includes a plurality of connecting strips; the gaskets are arranged in an array on the connecting net, and any one gasket is fixedly connected to at least two connecting strips; the thickness of the connecting strip is less than the thickness of the gasket.

[0015] Further, the connecting net includes a first connecting strip in a first direction and a second connecting strip in a second direction, and the first direction and the second direction are not parallel; the gasket is disposed at the intersection node of the first connecting strip and the second connecting strip.

[0016] Further, a wiring channel for arranging signal acquisition lines is provided in the connecting net.

[0017] Further, hollow holes for the circulation of the temperature control medium are respectively provided on the two side baffles; or, among the two side baffles, one side baffle is provided with hollow holes for the circulation of the temperature control medium, and the other side baffle is provided with a limiting protrusion protruding toward the side surface of the battery cell to limit the side surface of the corresponding battery cell.

[0018] Further, protrusions or curled edges for structural strengthening are provided at the peripheral edge positions of the hollow holes, and the protrusions or curled edges are located on the side of the side baffle facing away from the battery cell.

[0019] The present utility model further provides a battery module, including a battery assembly and a consolidation assembly, where the battery assembly includes at least two energy storage module units arranged side by side as described above; the consolidation assembly includes an upper frame sleeved on the upper part of the battery assembly and a lower frame sleeved on the lower part of the battery assembly, the upper frame is provided with a second upper pressing edge for pressing on the top surface of the battery assembly, and the lower frame is provided with a second lower supporting edge for supporting on the bottom surface of the battery assembly; both the upper frame and the lower frame are fixedly connected to the end pressing plate.

[0020] Further, a longitudinal connecting bar is provided between the upper frame and the lower frame, and two ends of the longitudinal connecting bar are respectively connected to the upper frame and the lower frame.

[0021] Further, clamping grooves are respectively and correspondingly provided on the upper frame and the lower frame, and clamping heads adapted to the clamping grooves are respectively provided at two ends of the longitudinal connecting bar.

[0022] Further, a second gap channel for the circulation of a temperature control medium is provided between two adjacent energy storage module units, a second upper pressing edge presses on the top edge position of the battery assembly, and a second lower pressing edge supports the bottom edge position of the battery assembly.

[0023] Further, a bottom plate assembly is further included, the bottom plate assembly includes a bottom plate, and the bottom plate is located below the battery assembly and fixedly connected to the end pressing plate.

[0024] Further, longitudinal shunt channels are provided on the bottom plate at intervals, and longitudinal shunt holes are provided on the top surface and / or side surface of the longitudinal shunt channels at intervals.

[0025] Further, the longitudinal shunt channels are respectively located on both sides of the bottom of the energy storage module unit.

[0026] Further, the front end of the longitudinal shunt channel is a liquid inlet end, the rear end is a liquid outlet end, and the width of the longitudinal shunt channel gradually decreases or gradually increases along the front-to-back direction.

[0027] Further, the longitudinal shunt channel is formed by a bottom plate and a cover groove covering the bottom plate.

[0028] Further, support protrusions for supporting the battery cells are further provided on the bottom plate, and at least one support protrusion is correspondingly provided for each battery cell, and an internal shunt channel for the circulation of a temperature control medium is formed between adjacent support protrusions.

[0029] Further, the support protrusion includes a support protrusion protruding upward, and a plurality of support columns are provided on the top surface of the support protrusion at intervals.

[0030] Further, a transverse shunt channel is provided at the front end of the bottom plate, and the transverse shunt channel is communicated with all the longitudinal shunt channels.

[0031] Further, a cover plate is installed on the transverse shunt channel, and a liquid inlet is provided on the cover plate or the side wall of the transverse shunt channel.

[0032] Further, overflow channels are provided at intervals at the rear end of the bottom plate, the liquid inlet of the overflow channel is located on the bottom surface of the bottom plate, and the liquid outlet of the overflow channel is located on the rear side surface and / or the top surface of the bottom plate.

[0033] Further, support wheel frames are respectively installed at the front and rear ends of the consolidation assembly, and rollers are installed on the support wheel frames.

[0034] Further, adjacent two energy storage module units are fixedly connected.

[0035] Further, a top cover plate is installed on the top of the battery assembly, and positioning holes for positioning pole ear connectors are provided on the top cover plate.

[0036] The beneficial effects of the present utility model are as follows:

[0037] For the energy storage module of the present utility model, at least two energy storage module units are arranged side by side to form a battery assembly, and the upper frame and the lower frame in the consolidation assembly are respectively sleeved on the upper part and the lower part of the battery assembly. A second upper pressing edge for pressing on the top surface of the battery assembly is provided on the upper frame, and a second lower supporting edge for supporting on the bottom surface of the battery assembly is provided on the lower frame. In this way, the battery assembly as a whole can be limited in all directions and the structural strength can be enhanced, so that the entire battery assembly forms an integral structure. In addition, in the energy storage module unit, a row of battery cells is included, and end pressing plates are respectively arranged at both ends of each row of battery cells. By respectively arranging side baffles on both sides of the battery cells, and respectively arranging a first upper pressing edge pressing on the top surface of the battery cells and a first lower supporting edge supporting on the bottom surface of the battery cells at the top and the bottom of the side baffles, the row of battery cells can be limited in all directions and the structure can be strengthened, so that the row of battery cells forms an integral structure. In this way, for the energy storage module of the present utility model, on the one hand, each internal energy storage module unit forms an integral structure, and on the other hand, the battery assembly composed of at least two energy storage module units forms an integral structure under the strengthening action of the structure of the consolidation assembly, which can effectively enhance the structural strength of the energy storage module and has strong anti-vibration performance and anti-drop performance. Description of the Drawings

[0038] In order to make the purpose, technical solution and beneficial effects of the present utility model clearer, the following drawings are provided by the present utility model for illustration:

[0039] Figure 1 It is a schematic structural diagram of an embodiment of the energy storage module of the present utility model;

[0040] Figure 2 It is an upper axonometric view of the battery assembly and the consolidation assembly;

[0041] Figure 3 It is a lower axonometric view of the battery assembly and the consolidation assembly;

[0042] Figure 4 It is an upper axonometric view of the energy storage module unit;

[0043] Figure 5 It is a lower axonometric view of the energy storage module unit;

[0044] Figure 6 It is the first structural schematic diagram of the side baffle;

[0045] Figure 7 It is the second structural schematic diagram of the side baffle;

[0046] Figure 8 It is the structural schematic diagram of the gasket assembly;

[0047] Figure 9 It is the structural schematic diagram of the bottom plate assembly;

[0048] Figure 10 It is the sectional view of the bottom plate assembly;

[0049] Figure 11 It is the structural schematic diagram of the bottom plate;

[0050] Figure 12 It is the A-A sectional view of the bottom plate;

[0051] Figure 13 It is the structural schematic diagram of the top cover plate.

[0052] Explanation of reference numerals:

[0053] 10 - Energy storage module unit; 11 - End pressing plate; 12 - Battery cell; 13 - Side baffle; 131 - First lower supporting edge; 132 - First upper pressing edge; 133 - Hollow hole; 134 - Limiting protrusion; 14 - Binding band; 15 - First gap channel; 16 - Gasket; 17 - Connecting bar;

[0054] 21 - Upper frame; 211 - Second upper pressing edge; 22 - Lower frame; 221 - Second lower supporting edge; 222 - Support bar; 23 - Longitudinal connecting bar; 231 - Clamping head; 24 - Second gap channel; 25 - Top cover plate; 251 - Positioning groove; 252 - Relief hole; 253 - Hollow hole; 26 - Tab connecting piece;

[0055] 30 - Bottom plate assembly; 31 - Bottom plate; 32 - Longitudinal shunt channel; 321 - Cover groove; 322 - Longitudinal shunt hole; 33 - Support block; 331 - Support protrusion; 332 - Support column; 34 - Internal shunt channel; 35 - Transverse shunt channel; 36 - Cover plate; 37 - Liquid inlet; 38 - Overflow channel. Detailed implementation manners

[0056] The following further illustrates the present utility model in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the exemplified embodiments shall not be used to limit the present utility model.

[0057] Such as Figures 1-3As shown, the battery module of this embodiment includes a battery component and a consolidation component. The battery component of this embodiment includes at least two energy storage module units 10 arranged side by side.

[0058] The consolidation component of this embodiment includes an upper frame 21 sleeved on the upper part of the battery component and a lower frame 22 sleeved on the lower part of the battery component. The upper frame 21 is provided with a second upper pressing edge 211 for pressing on the top surface of the battery component, and the lower frame 22 is provided with a second lower supporting edge 221 for supporting on the bottom surface of the battery component. Both the upper frame 21 and the lower frame 22 are fixedly connected to the end pressing plate 11. The bottom surface of the lower frame 22 is further provided with a plurality of supporting strips 222 to support the energy storage module unit 10. In this embodiment, the energy storage module units 10 are arranged in 4 side by side, and the direction in which the energy storage module units 10 are arranged side by side is perpendicular to the direction in which a row of battery cells 12 in the energy storage module unit 10 are arranged. In this way, the upper frame 21 and the lower frame 22 are respectively clamped on the upper and lower parts of the battery component, playing a role in fixing the circumferential direction of the battery component. At the same time, a second upper pressing edge 211 pressing on the top surface of the battery component is provided on the upper frame 21, and a second lower pressing edge 221 supporting on the bottom surface of the battery component is provided on the lower frame 22, fixing the battery component in the up and down direction. Combined with the energy storage module unit 10 forming an integral structure, the battery component can form an integral consolidation structure to improve the structural strength.

[0059] In this embodiment, a longitudinal connecting strip 23 is provided between the upper frame 21 and the lower frame 22, and both ends of the longitudinal connecting strip 23 are respectively connected to the upper frame 21 and the lower frame 22. Specifically, in this embodiment, clamping grooves are respectively provided on the upper frame 21 and the lower frame 22, and both ends of the longitudinal connecting strip 23 are respectively provided with clamping heads 231 that cooperate with the clamping grooves. Of course, both ends of the longitudinal connecting strip 23 can also be respectively connected to the upper frame 21 and the lower frame 22 through threaded connectors, which will not be elaborated here.

[0060] In this embodiment, a second gap channel 24 for the circulation of the temperature control medium is provided between two adjacent energy storage module units 10. The second upper pressing edge 211 presses at the edge position of the top surface of the battery component, and the second lower supporting edge 221 supports at the edge position of the bottom surface of the battery component. The second upper pressing edge 211 and the second lower supporting edge 221 do not close the upper and lower ends of the second gap channel 24 to ensure the fluidity of the temperature control medium in the second gap channel 24. In this embodiment, two adjacent energy storage module units 10 are fixedly connected. Specifically, there are various ways to fixedly connect two adjacent energy storage module units 10. In this embodiment, the side baffles 13 of two adjacent energy storage module units 10 are fixedly connected by means of dispensing, which not only meets the connection requirements but also does not affect the fluidity of the second gap channel 24.

[0061] In a preferred embodiment of the present embodiment, support wheel frames (not shown in the figure) are respectively installed at the front and rear ends of the consolidation assembly, and rollers are installed on the support wheel frames to facilitate the movement of the energy storage module during installation and maintenance.

[0062] As Figures 4-8 shown, the energy storage module unit 10 of the present embodiment includes two end pressing plates 11 and a row of battery cells 12 disposed between the two end pressing plates 11. Side baffles 13 are further provided between the two end pressing plates 11 and on both sides of the battery cells 12 respectively, and both ends of the side baffles 13 are fixedly connected to the two end pressing plates 11 respectively. In this embodiment, a first lower supporting edge 131 for supporting on the bottom surface of the battery cells 12 is provided at the bottom of the side baffle 13, and a first upper pressing edge 132 pressing on the top surface of the battery cells 12 is provided at the top of the side baffle 13. Thus, the two end pressing plates 11 and the two side baffles 13 form a circumferential fixing structure surrounding the row of battery cells 12 for one week, and at the same time, the first lower supporting edge 131 and the first upper pressing edge 132 provided on the two side baffles 13 constitute a fixing structure in the up and down direction of the row of battery cells 12, so that a row of battery cells 12 belonging to the same energy storage module unit 10 can be fixed into an integral structure, effectively improving the structural strength. In a preferred embodiment of the present embodiment, the energy storage module unit 10 of the present embodiment further includes at least one binding band 14 wound outside the end pressing plates 11 and the side baffles 13 to further improve the circumferential fixing strength. Two binding bands 14 are provided in this embodiment. Specifically, the number of the binding bands 14 is set according to actual application needs and will not be elaborated herein.

[0063] In this embodiment, a first gap channel 15 for the circulation of the temperature control medium is respectively provided between two adjacent battery cells 12 and between the adjacent end pressing plates 11 and the battery cells 12. To facilitate the circulation of the temperature control medium in the first gap channel 15, the first upper pressing edge 132 of this embodiment presses on the edge position of the top surface of the battery cells 12, and the first lower pressing edge 131 supports on the edge position of the bottom surface of the battery cells 12. Thus, gaps are respectively formed between the first upper pressing edges 132 of the two side baffles 13 and between the first lower pressing edges 131, and the temperature control medium can enter and exit the first gap channel 15 from the gaps between the first upper pressing edges 132 and between the first lower pressing edges 131, enabling the temperature control medium to circulate in the first gap channel 15.

[0064] In this embodiment, a gasket assembly for bearing pressure and suppressing the expansion and deformation of the battery cell 12 is provided in the first gap channel 15. Specifically, the gasket assembly includes a plurality of gaskets 16. The gasket assembly can be arranged in the first gap channel 15 in a variety of ways. For example: in the first way, the gaskets 16 can be arranged in an array in the first gap channel 15, and there is a first spacing for the temperature control medium to flow between two adjacent gaskets 16; in the second way, the gaskets 16 are arranged in an array, there is a first spacing for the temperature control medium to flow between two adjacent gaskets 16, and a connecting strip is provided between two adjacent gaskets 16, and the connecting strip is used to connect the corresponding two gaskets 16; the thickness of the connecting strip is less than the thickness of the gasket 16 to enable the temperature control medium to flow; in the third way, as Figure 8 shown, in this embodiment, the gasket assembly further includes a connecting net, and the connecting net includes a plurality of connecting strips 17; the gaskets 16 are arranged in an array on the connecting net, and any one gasket 16 is fixedly connected to at least two connecting strips 17; the thickness of the connecting strip 17 is less than the thickness of the gasket, and there is a first spacing between adjacent gaskets 16, so that the temperature control medium can flow in the first gap channel 15. In this embodiment, the connecting net includes a first connecting strip in the first direction and a second connecting strip in the second direction, and the first direction and the second direction are not parallel; the gasket 16 is arranged at the intersection node of the first connecting strip and the second connecting strip. In a preferred embodiment of this embodiment, a wiring channel for arranging signal acquisition lines is provided in the connecting net, so as to facilitate the arrangement of signal acquisition lines such as temperature sensors that can acquire the temperature at the middle position of the surface of the battery cell 12.

[0065] In this embodiment, in the same energy storage module unit 10, hollow holes 133 for the temperature control medium to flow are respectively provided on the two side baffles 13; or, among the two side baffles 13, one of the side baffles 13 is provided with hollow holes 133 for the temperature control medium to flow, as Figure 6 shown, the other side baffle 13 is provided with a limiting protrusion 134 that protrudes toward the side surface of the battery cell 12 to limit the side surface of the corresponding battery cell 12, as Figure 7As shown in the figure. The hollow holes 133 enable the temperature control medium in the second gap channel between two adjacent energy storage module units 10 to directly contact the side surface of the battery cell 12 and perform heat exchange, which can improve the temperature control efficiency. Specifically, when the battery assembly includes two energy storage module units 10, at this time, hollow holes 133 for the circulation of the temperature control medium are provided on the side baffles 13 on the opposite sides of the energy storage module units 10, and limit protrusions 134 are provided on the side baffles 13 on the opposite sides of the two energy storage module units 10. When the battery assembly includes at least three energy storage module units, hollow holes 133 are respectively provided on the side baffles 13 on both sides of the middle energy storage module unit 10; among the two energy storage module units 10 at both ends, hollow holes 133 are provided on the side baffles 13 on the opposite sides, and limit protrusions 134 are provided on the side baffles 13 on the opposite sides. That is, when the side baffle 13 is located on the side of the corresponding energy storage module unit 10 facing another energy storage module unit 10, hollow holes 133 are provided on this side baffle 13, otherwise, limit protrusions 134 are provided on this side baffle 13. In the preferred embodiment of this embodiment, protrusions or curled edges for structural strengthening are provided at the peripheral edge positions of the hollow holes 133, and the protrusions or curled edges are located on the side of the side baffle 13 facing away from the battery cell 12.

[0066] As Figures 9-12 As shown in the figure, the energy storage module of this embodiment includes a bottom plate assembly 30, and the bottom plate assembly 30 includes a bottom plate 31. The bottom plate 31 is located below the battery assembly and is fixedly connected to the end pressing plate 11. In this embodiment, longitudinal diversion channels 32 are provided on the bottom plate 31 at intervals, and longitudinal diversion holes 322 are provided on the top surface and / or side surface of the longitudinal diversion channels 32 at intervals, so that the temperature control medium in the longitudinal diversion channels 32 can be evenly diverted into the first gap channel 15 and the second gap channel 24. In this embodiment, the longitudinal diversion channels 32 are respectively located on both sides of the bottom of the energy storage module unit 10, that is, the temperature control medium can be diverted to each first gap channel 15 and the second gap channel 24, making the flow of the temperature control medium in the first gap channel 15 and the second gap channel 24 more uniform. The front end of the longitudinal diversion channel 32 is the liquid inlet end, and the rear end is the liquid outlet end. The width of the longitudinal diversion channel 32 gradually decreases or gradually increases along the front-to-back direction. Specifically, when the viscosity of the temperature control medium is small, the width of the longitudinal diversion channel 32 gradually decreases along the front-to-back direction; when the viscosity of the temperature control medium is large, the width of the longitudinal diversion channel 32 gradually increases along the front-to-back direction. In this embodiment, the longitudinal diversion channel 32 is formed by the bottom plate 31 and a cover groove 321 covering the bottom plate 31.

[0067] In this embodiment, a support block 33 for supporting the battery cell 12 is further provided on the bottom plate 31, and at least one support block 33 is provided corresponding to each battery cell 12. An internal shunt channel 34 for the circulation of the temperature control medium is formed between adjacent support blocks 33. In this embodiment, two support blocks 33 are provided below each battery cell 12. Specifically, the number of support blocks 33 below each battery cell 12 is set according to actual needs and will not be elaborated here. Specifically, in this embodiment, the support block 33 includes a support protrusion 331 protruding upward, and a plurality of support columns 332 are spaced on the top surface of the support protrusion 331. In this way, by using the height and gaps of the support columns 332, the temperature control medium can be in full contact with the bottom surface of the battery cell 12 for heat exchange.

[0068] In this embodiment, a transverse shunt channel 35 is provided at the front end of the bottom plate 31, and the transverse shunt channel 35 is connected to all the longitudinal shunt channels 32. A cover plate 36 is installed on the transverse shunt channel 35, and a liquid inlet 37 is provided on the cover plate 36 or the side wall of the transverse shunt channel 35. In this embodiment, the liquid inlet 37 is provided on the cover plate 36. In this way, the temperature control medium introduced from the liquid inlet 37 can uniformly enter each longitudinal shunt channel 32 under the shunt action of the transverse shunt channel 35.

[0069] In this embodiment, overflow channels 38 are provided at intervals at the rear end of the bottom plate 21. The liquid inlet of the overflow channel 38 is located on the bottom surface of the bottom plate, and the liquid outlet of the overflow channel 38 is located on the rear side surface and / or the top surface of the bottom plate 21. In this embodiment, the liquid outlet of the overflow channel 38 is located between the rear side surface and the top surface of the bottom plate 21. The overflow channel 38 is used to control the overflow height of a storage module located below it, so that the overflow height of a storage module located below it is higher than the bottom surface of the bottom plate 21 of the storage module where the overflow channel 38 is located, so as to ensure that there is no air gap between adjacent two layers of storage modules, achieving the technical effect of layered overflow full immersion and improving the safety performance.

[0070] In this embodiment, a top cover plate 25 is installed on the top of the battery assembly. As Figure 13 shown, a positioning groove 251 for positioning the pole ear connector 26 is provided on the top cover plate 25, and a relief hole 252 for relieving the pole post of the battery cell 12 is provided in the positioning groove 125. Of course, hollow holes 253 for the circulation of the temperature control medium are also provided on the top cover plate 25 corresponding to the first gap channel 15 and the second gap channel 24.

[0071] The above-described embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. An energy storage module unit, characterized in that: It comprises two end pressing plates and a row of battery cells arranged between the two end pressing plates; A side baffle is also provided between the two end pressure plates and is respectively located on both sides of the battery cell. The two ends of the side baffle are respectively fixedly connected to the two end pressure plates, and the bottom of the side baffle is provided with a first lower supporting edge for supporting on the bottom surface of the battery cell, and the top of the side baffle is provided with a first upper pressing edge for pressing on the top surface of the battery cell.

2. The energy storage module unit according to claim 1, characterized in that: It also includes at least one binding belt wrapped around the end pressure plate and the side baffle.

3. The energy storage module unit according to claim 1, wherein: A first gap channel for circulating the temperature control medium is respectively provided between two adjacent battery cells and between the adjacent end pressure plates and battery cells.

4. The energy storage module unit according to claim 3, characterized in that: The first upper pressing edge is pressed at the edge of the top surface of the battery cell, and the first lower pressing edge is supported at the edge of the bottom surface of the battery cell.

5. The energy storage module unit according to claim 3, characterized in that: A gasket assembly for bearing pressure and suppressing expansion and deformation of the battery cell is arranged in the first gap channel, and the gasket assembly includes a plurality of gaskets.

6. The energy storage module unit according to claim 5, wherein: The gaskets are arranged in an array, and a first spacing for the flow of temperature control medium is provided between two adjacent gaskets.

7. The energy storage module unit according to claim 5, characterized in that: The gasket array is arranged, a first spacing for the circulation of temperature control medium is provided between two adjacent gaskets, and a connecting strip is provided between two adjacent gaskets, the connecting strip is used to connect the corresponding two gaskets; the thickness of the connecting strip is less than the thickness of the gasket to allow the circulation of temperature control medium.

8. The energy storage module unit according to claim 5, characterized in that: The gasket assembly also includes a connecting net, which includes a plurality of connecting strips; the gasket array is arranged on the connecting net, and any one of the gaskets is fixedly connected to at least two connecting strips; the thickness of the connecting strip is smaller than the thickness of the gasket.

9. The energy storage module unit according to claim 8, characterized in that: The connection network includes a first connection bar located in a first direction and a second connection bar located in a second direction, and the first direction and the second direction are not parallel; the gasket is arranged at the intersection node of the first connection bar and the second connection bar.

10. The energy storage module unit according to claim 8, wherein: The connection network is provided with a wiring channel for arranging signal collection lines.

11. The energy storage module unit according to claim 1, wherein: The two side baffles are respectively provided with hollow holes for the circulation of temperature control medium; or, among the two side baffles, one of the side baffles is provided with a hollow hole for the circulation of temperature control medium, and the other side baffle is provided with a side protrusion toward the battery cell to limit the corresponding side of the battery cell.

12. The energy storage module unit according to claim 11, characterized in that: The edges of the hollow hole are provided with protrusions or curling edges for structural reinforcement, and the protrusions or curling edges are located on the side of the side baffle facing away from the battery cell.

13. A battery module, characterized in that: It includes a battery assembly and a consolidation assembly, the battery assembly includes at least two energy storage module units as described in any one of claims 1 to 12 arranged side by side; the consolidation assembly includes an upper frame sleeved on the upper part of the battery assembly and a lower frame sleeved on the lower part of the battery assembly, the upper frame is provided with a second upper pressing edge for pressing on the top surface of the battery assembly, and the lower frame is provided with a second lower supporting edge for supporting on the bottom surface of the battery assembly; the upper frame and the lower frame are both fixedly connected to the end pressure plate.

14. The battery module according to claim 13, wherein: A longitudinal connecting strip is provided between the upper frame and the lower frame, and two ends of the longitudinal connecting strip are respectively connected to the upper frame and the lower frame.

15. The battery module according to claim 14, wherein: The upper frame and the lower frame are respectively provided with clamping grooves, and the two ends of the longitudinal connecting strip are respectively provided with clamping heads that cooperate with the clamping grooves.

16. The battery module according to claim 13, wherein: A second gap channel for the circulation of the temperature control medium is provided between two adjacent energy storage module units. The second upper pressing edge presses on the top edge position of the battery assembly, and the second lower pressing edge supports the bottom edge position of the battery assembly.

17. The battery module according to any one of claims 13-16, characterized in that: It further includes a bottom plate assembly. The bottom plate assembly includes a bottom plate, and the bottom plate is located below the battery assembly and fixedly connected to the end pressing plate.

18. The battery module according to claim 17, wherein: Longitudinal shunt channels are arranged at intervals on the bottom plate, and longitudinal shunt holes are arranged at intervals on the top surface and / or side surface of the longitudinal shunt channels.

19. The battery module according to claim 18, wherein: The longitudinal shunt channels are respectively located on both sides of the bottom of the energy storage module unit.

20. The battery module according to claim 18, wherein: The front end of the longitudinal shunt channel is the liquid inlet end, and the rear end is the liquid outlet end. The width of the longitudinal shunt channel gradually decreases or gradually increases along the front-to-back direction.

21. The battery module according to claim 19, wherein: The longitudinal shunt channel is formed by the bottom plate and a cover groove covering the bottom plate.

22. The battery module according to claim 17, wherein: The bottom plate is further provided with support protrusions for supporting the battery cells, and at least one support protrusion is correspondingly provided for each battery cell. An internal shunt channel for the circulation of the temperature control medium is formed between adjacent support protrusions.

23. The battery module according to claim 22, wherein: The support protrusion includes a support protrusion that protrudes upward, and a plurality of support columns are arranged at intervals on the top surface of the support protrusion.

24. The battery module according to claim 18, wherein: A transverse shunt channel is provided at the front end of the bottom plate, and the transverse shunt channel is communicated with all the longitudinal shunt channels.

25. The battery module according to claim 24, wherein: A cover plate is installed on the transverse shunt channel, and a liquid inlet is provided on the cover plate or the side wall of the transverse shunt channel.

26. The battery module according to claim 17, characterized in that: Overflow channels are arranged at intervals at the rear end of the bottom plate. The liquid inlet of the overflow channel is located on the bottom surface of the bottom plate, and the liquid outlet of the overflow channel is located on the rear side surface and / or the top surface of the bottom plate.

27. The battery module according to claim 13, wherein: Support wheel frames are respectively installed at the front and rear ends of the consolidation assembly, and rollers are installed on the support wheel frames.

28. The battery module according to claim 13, wherein: Two adjacent energy storage module units are fixedly connected.

29. The battery module according to claim 13, characterized in that: A top cover plate is installed on the top of the battery assembly, and positioning holes for positioning the pole ear connectors are provided on the top cover plate.

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