Module and energy storage device

Abstract

The utility model discloses a module and an energy storage device. The module comprises a housing; the multiple battery cells are located in the shell, the multiple battery cells are stacked in the first direction, at least one side, in the second direction, of each battery cell is provided with a pole and an anti-explosion valve, and the pole and the anti-explosion valve are spaced in the vertical direction; the polystyrene foam is at least located on the side, provided with the pole, of the battery cell, the polystyrene foam and the pole are opposite in the second direction, the polystyrene foam and the anti-explosion valve are spaced in the vertical direction, the polystyrene foam is used for filling a gap between the shell and the battery cell, and the first direction, the second direction and the vertical direction are perpendicular. According to the module provided by the utility model, the polystyrene foam can block the contact between the electrolyte and the pole, so that the electric connection sealing isolation of the module is realized, the risks of short-circuit arcing, fire and the like are reduced, and meanwhile, the polystyrene foam forms a protective layer to effectively prevent external moisture, dust and impurities from entering the battery core, so that the battery core is protected from being influenced by environmental factors, and the service life of the battery core is prolonged. And the sealing property and the insulating property of the module are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a module and an energy storage device. Background Art

[0002] Energy storage devices usually include multiple battery modules. When a battery cell in a battery module experiences thermal runaway, the explosion-proof valve opens and sprays electrolyte out of the battery cell, posing the risk of arcing and fire. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a module that blocks contact between the electrolyte and the electrode, thereby achieving sealed isolation of the module's electrical connections, reducing the risks of short-circuit arcing and fire, and effectively improving the module's reliability and safety.

[0004] The present invention also provides an energy storage device, which includes the above-mentioned module.

[0005] According to the module of the embodiment of the present invention, it includes: a shell; a battery cell, wherein the battery cell is multiple and located in the shell, the multiple battery cells are stacked along a first direction, and the battery cell has a pole and an explosion-proof valve on at least one side along the second direction, and the pole and the explosion-proof valve are spaced apart along the up and down directions; foam glue, the foam glue is located at least on the side of the battery cell having the pole, the foam glue is opposite to the pole along the second direction, the foam glue is spaced apart from the explosion-proof valve along the up and down directions, and the foam glue is used to fill the gap between the shell and the battery cell, and the first direction, the second direction and the up and down directions are perpendicular.

[0006] According to the module of the embodiment of the present invention, there are multiple battery cells and they are located in the shell. The multiple battery cells are stacked along a first direction. At least one side of the battery cell along the second direction has a pole and an explosion-proof valve. The pole and the explosion-proof valve are spaced apart in the vertical direction. Foam glue is located at least on the side of the battery cell with the pole. The foam glue and the pole are opposite to each other in the second direction. The foam glue and the explosion-proof valve are spaced apart in the vertical direction. The foam glue is used to fill the gap between the shell and the battery cell so that the foam glue can block the electrolyte from contacting the pole, thereby achieving the module's electrical connection sealing and isolation, reducing the risks of short-circuit arcing, fire, etc., and effectively improving the module's reliability and safety. At the same time, by filling the gap between the shell and the battery cell with foam glue, a protective layer is formed, which effectively prevents external moisture, dust and impurities from entering the interior of the battery cell, thereby protecting the battery cell from environmental factors, improving the sealing and insulation of the module, and ensuring that the energy storage device using the module maintains efficient and stable operation in a complex working environment.

[0007] In some embodiments of the present invention, the foam extends to the inner wall of the shell located on a side of the pole facing away from the explosion-proof valve.

[0008] Some embodiments of the present invention further include: aerogel, wherein the aerogel is located between any two adjacent battery cells, and the aerogel has foam at both ends along the second direction, and the foam extends along the up and down directions, and the two ends of the foam along the first direction respectively abut against the surfaces of any two adjacent battery cells facing each other.

[0009] Some embodiments of the present invention further include: a bracket, which is located in the shell and connected to the shell, and the bracket is used to divide the accommodating space of the shell into a first space and a second space, and the multiple battery cells are located in the first space.

[0010] The energy storage device according to an embodiment of the present invention includes: the above-mentioned module, wherein there are multiple modules, and the multiple modules are stacked along the second direction or the up-down direction.

[0011] According to the energy storage device of the embodiment of the present invention, a module is provided. The modules are multiple and stacked in a second direction or in a vertical direction, thereby ensuring the capacity of the energy storage device, meeting the different requirements of the energy storage device, meeting the requirements of energy storage devices with different structures, and rationally utilizing space. At the same time, the foam glue is located at least on the side of the battery cell having the pole, the foam glue and the pole are opposite in the second direction, and the foam glue is separated from the explosion-proof valve in the vertical direction. The foam glue is used to fill the gap between the housing and the battery cell so that the foam glue can block contact between the electrolyte and the pole, thereby achieving sealed isolation of the electrical connection of the module, reducing the risks of short circuit arcing, fire, etc., and effectively improving the reliability and safety of the energy storage device.

[0012] In some embodiments of the present invention, the shell includes: a base plate, a first end plate and a second end plate, the base plate is a cooling plate, the first end plate and the second end plate are located on both sides of the base plate along the second direction and are connected to the base plate, and when multiple modules are stacked along the second direction, the shell also includes a top cover, the first end plate and the second end plate are connected to the top cover on the side facing away from the base plate, and the base plate of one of any two adjacent modules is connected to the top cover of the other module; or, when multiple modules are stacked up and down, the base plate of one of any two adjacent modules is connected to the side of the first end plate and the second end plate of the other module facing away from the base plate.

[0013] In some embodiments of the present invention, when a plurality of the modules are stacked along the second direction, the bottom plate of one module and the top cover of the other module in any two adjacent modules are bonded together by thermally conductive adhesive.

[0014] In some embodiments of the present invention, the first end plate and the second end plate both include a first plate and a second plate spaced apart along the second direction, the first plate of the first end plate and the first plate of the second end plate are located on the side of the first end plate and the second end plate facing away from each other, the first plate of the first end plate and the first plate of the second end plate have through holes penetrating the first plate along the thickness direction of the first plate, the through holes are multiple and spaced apart along the first direction, any two adjacent modules are connected by fasteners, the fasteners are multiple and correspond one to one to the through holes and are passed through the through holes.

[0015] In some embodiments of the present invention, the first end plate has a guide port that passes through the first end plate along the thickness direction of the first end plate, and at least a portion of the guide port is opposite to the explosion-proof valve of one of the battery cells; and / or, the second end plate has a guide port that passes through the second end plate along the thickness direction of the second end plate, and at least a portion of the guide port is opposite to the explosion-proof valve of one of the battery cells.

[0016] In some embodiments of the present invention, an explosion-proof patch is provided on a side of the diversion port facing away from the explosion-proof valve, and the explosion-proof patch is used to block the diversion port.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a structural diagram of a module according to an embodiment of the present utility model;

[0020] Figure 2 is an exploded view of a module according to an embodiment of the present invention;

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 is a partial structural diagram of a module according to an embodiment of the present utility model;

[0023] Figure 5is a structural diagram of multiple battery cells and aerogels according to an embodiment of the present utility model;

[0024] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0025] Figure 7 is a side view of a module according to an embodiment of the present invention, wherein the top cover is not shown;

[0026] Figure 8 This is a structural diagram of a housing and a bracket according to an embodiment of the present utility model;

[0027] Figure 9 yes Figure 8 Enlarged view of point C in the middle;

[0028] Figure 10 is a structural diagram of a module according to another embodiment of the present invention;

[0029] Figure 11 is a structural diagram of an energy storage device according to an embodiment of the present utility model;

[0030] Figure 12 is a front view of an energy storage device according to an embodiment of the present utility model;

[0031] Figure 13 yes Figure 12 Enlarged view of point D in the middle;

[0032] Figure 14 It is a top view of an energy storage device according to another embodiment of the present utility model.

[0033] Reference numerals:

[0034] 1000. Energy storage device;

[0035] 100, module;

[0036] 1. Housing; 11. Accommodation space; 111. First space; 112. Second space; 12. Bottom plate; 13. First end plate; 131. First plate; 1311. Through hole; 132. Second plate; 133. Diversion port; 14. Second end plate; 15. Top cover;

[0037] 2. Battery cell; 21. Terminal; 22. Explosion-proof valve;

[0038] 3. Foaming glue;

[0039] 4. Aerogel; 41. Foam;

[0040] 5. Bracket;

[0041] 6. Fasteners;

[0042] 7. Explosion-proof patch. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0045] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0046] The module 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0047] like Figures 1-10 As shown, the module 100 according to an embodiment of the present invention includes a housing 1 , a battery cell 2 and a foam 3 .

[0048] Among them, there are multiple battery cells 2 and they are located in the shell 1. The multiple battery cells 2 are stacked along the first direction. The battery cells 2 have a pole 21 and an explosion-proof valve 22 on at least one side along the second direction. The pole 21 and the explosion-proof valve 22 are spaced apart along the up and down directions, and the first direction, the second direction and the up and down directions are perpendicular.

[0049] It is understood that the pole 21 of the battery cell 2 is used to connect to the external circuit to ensure the normal transmission and distribution of electrical energy. The poles 21 of two adjacent battery cells 2 can be connected by welding through electrical connectors (e.g., aluminum bars). At the same time, when thermal runaway occurs in the battery cell 2, the explosion-proof valve 22 opens and sprays electrolyte out of the battery cell 2, thereby quickly releasing the internal pressure of the battery cell 2 and avoiding an explosion. In addition, by separating the pole 21 and the explosion-proof valve 22 in the vertical direction, interference between the pole 21 and the explosion-proof valve 22 is avoided, thereby improving the reliability and safety of the module 100.

[0050] The foam glue 3 is located at least on the side of the battery cell 2 with the terminal 21. The foam glue 3 and the terminal 21 are opposed in a second direction and separated vertically from the explosion-proof valve 22. The foam glue 3 is used to fill the gap between the housing 1 and the battery cell 2. Therefore, if the battery cell 2 experiences thermal runaway, the explosion-proof valve 22 opens and sprays electrolyte out of the battery cell 2. The foam glue 3 blocks contact between the electrolyte and the terminal 21, thereby achieving a sealed and isolated electrical connection for the module 100, reducing the risks of short-circuit arcing and fire, and effectively improving the reliability and safety of the module 100. Furthermore, the foam glue 3 fills the gap between the housing 1 and the battery cell 2, forming a protective layer that effectively prevents external moisture, dust, and impurities from entering the battery cell 2. This addresses issues such as condensation, dielectric withstand voltage, and corrosion of the housing 1 of the battery cell 2, protecting the battery cell 2 from environmental factors. This improves the sealing and insulation properties of the module 100, ensuring that the energy storage device 1000 employing this module 100 maintains efficient and stable operation in complex operating environments.

[0051] Optionally, the foam glue 3 is filled in the gap between the housing 1 and the battery cell 2 through a potting process, so that the foam glue 3 covers the outer surface of the electrode 21, further preventing the electrolyte from contacting the electrode 21. It should be noted that after the electrode 21 of two adjacent battery cells 2 is connected by welding through an electrical connector, the foam glue 3 is filled in the gap between the housing 1 and the battery cell 2 through a potting process.

[0052] It should be noted that the first direction may be the length direction of the battery cell 2 , the second direction may be the width direction of the battery cell 2 , and the up-down direction may be the height direction of the battery cell 2 .

[0053] According to the module 100 of the embodiment of the present invention, there are multiple battery cells 2 and they are located in the shell 1. The multiple battery cells 2 are stacked along the first direction. The battery cells 2 have a pole 21 and an explosion-proof valve 22 on at least one side along the second direction. The pole 21 and the explosion-proof valve 22 are spaced apart along the up and down directions. The foam glue 3 is located at least on the side of the battery cell 2 with the pole 21. The foam glue 3 is opposite to the pole 21 along the second direction. The foam glue 3 and the explosion-proof valve 22 are spaced apart along the up and down directions. The foam glue 3 is used to fill the gap between the shell 1 and the battery cell 2 so that the foam glue 3 can block the contact between the electrolyte and the pole 21, thereby realizing the electrical connection sealing isolation of the module 100, reducing the risks of short circuit arcing, fire, etc., and effectively improving the reliability and safety of the module 100. At the same time, the gap between the shell 1 and the battery cell 2 is filled with the foam glue 3 to form a protective layer, which effectively prevents external moisture, dust and impurities from entering the battery cell 2, thereby protecting the battery cell 2 from environmental factors, improving the sealing and insulation of the module 100, and ensuring that the energy storage device 1000 using the module 100 maintains efficient and stable operation in a complex working environment.

[0054] In some embodiments of the present invention, Figure 4 and Figure 7 As shown, the foam glue 3 extends to the inner wall of the housing 1 on the side of the pole 21 facing away from the explosion-proof valve 22. Therefore, when a battery cell 2 experiences thermal runaway, the explosion-proof valve 22 opens and sprays electrolyte out of the battery cell 2. The foam glue 3 prevents the electrolyte from flowing to the housing 1 on the side of the pole 21 facing away from the explosion-proof valve 22, thereby preventing the electrolyte from spreading from the housing 1 on the side of the pole 21 facing away from the explosion-proof valve 22 to other battery cells 2, thereby improving the reliability of the module 100.

[0055] In some embodiments of the present invention, Figure 3 and Figure 6 As shown, the module 100 further includes an aerogel 4. The aerogel 4 is located between any two adjacent battery cells 2. The aerogel 4 has foam 41 at both ends along the second direction. The foam 41 extends in the vertical direction. Both ends of the foam 41 along the first direction abut against the surfaces of any two adjacent battery cells 2 facing each other.

[0056] It is understood that the aerogel 4 can effectively mitigate the adverse effects of cell 2 expansion while ensuring strength, thereby improving the reliability and safety of the module 100. Furthermore, the foam 41 extends in the vertical direction, with both ends of the foam 41 along the first direction respectively contacting the mutually facing surfaces of any two adjacent cell 2. This prevents the foam 3 from overflowing between the cell 2 during the potting process to fill the gap between the housing 1 and the cell 2, further improving reliability.

[0057] In some embodiments of the present invention, Figure 8 and Figure 9 As shown, module 100 further includes a bracket 5. The bracket 5 is located within and connected to the housing 1. The bracket 5 is used to divide the housing space 11 of the housing 1 into a first space 111 and a second space 112. Multiple battery cells 2 are located within the first space 111. It is understood that the second space 112 can be used to house components such as BMS slave boards, fuses, and sensors. By dividing the housing space 11 of the housing 1 into the first space 111 and the second space 112, the bracket 5 isolates the battery cells 2 from electrical components within the second space 112, thereby improving overall reliability and safety.

[0058] Reference below Figures 1-10 The module 100 of a specific embodiment of the present invention is described in detail. It should be understood that the following description is only for illustrative purposes and should not be construed as limiting the present invention.

[0059] The module 100 includes a housing 1, battery cells 2, foam gel 3, aerogel 4, and a bracket 5. Multiple battery cells 2 are located within the housing 1 and stacked along a first direction. At least one side of the battery cells 2 along a second direction has a pole 21 and an explosion-proof valve 22, which are spaced apart vertically. The foam gel 3 extends to the inner wall of the housing 1 on the side of the pole 21 facing away from the explosion-proof valve 22. The aerogel 4 is located between any two adjacent battery cells 2. Both ends of the aerogel 4 along the second direction have foam pads 41, which extend vertically. Both ends of the foam pads 41 along the first direction abut against the facing surfaces of any two adjacent battery cells 2. The bracket 5 is located within and connected to the housing 1. The bracket 5 is used to divide the housing space 11 of the housing 1 into a first space 111 and a second space 112. Multiple battery cells 2 are located within the first space 111.

[0060] As a result, the foam glue 3 blocks contact between the electrolyte and the electrode 21, thereby achieving sealed isolation of the electrical connection of the module 100, reducing the risks of short-circuit arcing and fire, and effectively improving the reliability and safety of the module 100. At the same time, the foam glue 3 fills the gap between the housing 1 and the battery cell 2, forming a protective layer that effectively prevents external moisture, dust, and impurities from entering the battery cell 2, thereby protecting the battery cell 2 from environmental factors, improving the sealing and insulation of the module 100, and ensuring that the energy storage device 1000 using this module 100 maintains efficient and stable operation in complex working environments.

[0061] The energy storage device 1000 according to an embodiment of the present invention is described below.

[0062] According to the energy storage device 1000 of the embodiment of the present invention, Figures 1-14As shown, the device includes a plurality of modules 100, which are stacked in a second direction or vertically. Thus, the capacity of the energy storage device 1000 is ensured by the plurality of modules 100, meeting the requirements of the energy storage device 1000. Furthermore, since the battery cells 2 of each module 100 are stacked in the first direction, the stacking of the plurality of modules 100 in the second direction or vertically improves the versatility and adaptability of the energy storage device 1000, meeting various requirements.

[0063] Furthermore, by positioning foam glue 3 on at least one side of battery cell 2 having pole 21, with foam glue 3 opposing pole 21 along a second direction and spaced vertically from explosion-proof valve 22, foam glue 3 is used to fill the gap between housing 1 and battery cell 2, thereby preventing contact between the electrolyte and pole 21. This seals and isolates the electrical connection of module 100, effectively improving the reliability and safety of energy storage device 1000. Furthermore, by filling the gap between housing 1 and battery cell 2 with foam glue 3, a protective layer is formed that effectively prevents external moisture, dust, and impurities from entering the interior of battery cell 2, thereby protecting battery cell 2 from environmental factors, improving the sealing and insulation properties of module 100, and ensuring that energy storage device 1000 maintains efficient and stable operation in complex operating environments.

[0064] According to the energy storage device 1000 of the embodiment of the present invention, a module 100 is provided. Multiple modules 100 are stacked in a second direction or vertically, thereby ensuring the capacity of the energy storage device 1000, meeting the different requirements of the energy storage device 1000, and meeting the requirements of energy storage devices 1000 with different structures, while also making rational use of space. Furthermore, by positioning the foam glue 3 at least on the side of the battery cell 2 having the pole 21, the foam glue 3 is opposed to the pole 21 in the second direction, and is spaced apart from the explosion-proof valve 22 in the vertical direction, the foam glue 3 is used to fill the gap between the housing 1 and the battery cell 2, so that the foam glue 3 can prevent the electrolyte from contacting the pole 21, thereby achieving sealed isolation of the electrical connection of the module 100, reducing the risks of short-circuit arcing, fire, etc., and effectively improving the reliability and safety of the energy storage device 1000.

[0065] In some embodiments of the present invention, Figure 1 、 Figure 2 、 Figure 8 、 Figure 9 and Figure 14As shown, the shell 1 includes a base plate 12, a first end plate 13 and a second end plate 14. The base plate 12 is a cooling plate. The first end plate 13 and the second end plate 14 are located on both sides of the base plate 12 along the second direction and are connected to the base plate 12. When multiple modules 100 are stacked along the second direction, the shell 1 also includes a top cover 15. The first end plate 13 and the second end plate 14 are connected to the top cover 15 on the side facing away from the base plate 12. The base plate 12 of one module 100 in any two adjacent modules 100 is connected to the top cover 15 of the other module 100.

[0066] It is understandable that if Figure 14 As shown, when multiple modules 100 are stacked along the second direction, the top plate and the bottom plate 12 are connected to provide the battery cells 2 with resistance to gravity and the disordered expansion force generated between the battery cells 2, thereby ensuring the reliability of each module 100, and the modules 100 can be decoupled and maintained.

[0067] Furthermore, the module 100 includes a bracket 5. The bracket 5 is located within and connected to the housing 1. The bracket 5 is used to divide the housing space 11 of the housing 1 into a first space 111 and a second space 112. The multiple battery cells 2 are located in the first space 111. One end of the bracket 5 is connected to the bottom plate 12 along the vertical direction, and the other end is connected to the top cover 15.

[0068] Furthermore, the bracket 5 is connected to the bottom plate 12 by welding or bolts, and the bracket 5 is bonded to the top cover 15. Thus, through such an arrangement, the bracket 5 can provide expansion constraints for the battery cell 2 and improve reliability.

[0069] or, as Figures 8-12 As shown, the housing 1 includes a bottom plate 12, a first end plate 13, and a second end plate 14. The bottom plate 12 is a cooling plate. The first end plate 13 and the second end plate 14 are located on both sides of the bottom plate 12 along the second direction and are connected to the bottom plate 12. When multiple modules 100 are stacked up and down, the bottom plate 12 of one module 100 of any two adjacent modules 100 is connected to the side of the first end plate 13 and the second end plate 14 of the other module 100 that is away from the bottom plate 12. It can be understood that when multiple modules 100 are stacked up and down, the bottom plate 12 of one module 100 of any two adjacent modules 100 can serve as the top plate of the other module 100. As a result, the top cover 15 can be omitted, thereby reducing costs. At the same time, since the bottom plate 12 is a cooling plate, the modules 100 on the upper and lower sides of the bottom plate 12 can be cooled to ensure the temperature of the battery cells 2.

[0070] Furthermore, the module 100 also includes a bracket 5. The bracket 5 is located within and connected to the housing 1. The bracket 5 is used to divide the housing space 11 of the housing 1 into a first space 111 and a second space 112. The multiple battery cells 2 are located within the first space 111. The bracket 5 located between any two adjacent modules 100 has one end connected to the bottom plate 12 of one module 100 along the vertical direction, and the other end connected to the bottom plate 12 of the other module 100.

[0071] Thus, through such an arrangement, multiple modules 100 are stacked along the second direction or the vertical direction, so as to improve the versatility and adaptability of the energy storage device 1000 and meet different needs.

[0072] In some embodiments of the present invention, when multiple modules 100 are stacked along the second direction, the bottom plate 12 of one module 100 and the top cover 15 of the other module 100 of any two adjacent modules 100 are bonded together using thermally conductive adhesive. It is understood that because the bottom plate 12 is a liquid cooling plate, while satisfying the requirement of connecting the bottom plate 12 of one module 100 and the top cover 15 of the other module 100 of any two adjacent modules 100, the thermally conductive adhesive can better conduct heat between the bottom plate 12 and the top cover 15, thereby achieving double-sided cooling of the battery cells 2 and improving the cooling effect.

[0073] In some embodiments of the present invention, Figure 8 and Figure 9 As shown, the first end plate 13 and the second end plate 14 both include a first plate 131 and a second plate 132 spaced apart along the second direction, the first plate 131 of the first end plate 13 and the first plate 131 of the second end plate 14 are located on the side of the first end plate 13 and the second end plate 14 facing away from each other, the first plate 131 of the first end plate 13 and the first plate 131 of the second end plate 14 have through holes 1311 penetrating the first plate 131 along the thickness direction of the first plate 131, the through holes 1311 are multiple and spaced apart along the first direction, any two adjacent modules 100 are connected by fasteners 6, the fasteners 6 are multiple and correspond one-to-one to the through holes 1311 and are passed through the through holes 1311.

[0074] This arrangement allows any two adjacent modules 100 to be connected. Furthermore, the through-holes 1311 provided on the first end plate 13 facilitate the connection of the two modules 100, reducing assembly difficulty and improving assembly efficiency. Furthermore, the provision of the second end plate 14 ensures the sealing and insulation of the interior of the housing 1, ensuring that the energy storage device 1000 employing this module 100 maintains efficient and stable operation in complex operating environments.

[0075] In some embodiments of the present invention, Figure 3 and Figure 9As shown, the first end plate 13 has a guide port 133 that passes through the first end plate 13 along the thickness direction of the first end plate 13, and at least a portion of the guide port 133 is opposite to the explosion-proof valve 22 of one of the battery cells 2; and / or, the second end plate 14 has a guide port 133 that passes through the second end plate 14 along the thickness direction of the second end plate 14, and at least a portion of the guide port 133 is opposite to the explosion-proof valve 22 of one of the battery cells 2.

[0076] It can be understood that the first end plate 13 has a guide port 133 that passes through the first end plate 13 along the thickness direction of the first end plate 13, and at least a portion of the guide port 133 is opposite to the explosion-proof valve 22 of one of the battery cells 2; or, the second end plate 14 has a guide port 133 that passes through the second end plate 14 along the thickness direction of the second end plate 14, and at least a portion of the guide port 133 is opposite to the explosion-proof valve 22 of one of the battery cells 2; or, the first end plate 13 has a guide port 133 that passes through the first end plate 13 along the thickness direction of the first end plate 13, and at least a portion of the guide port 133 is opposite to the explosion-proof valve 22 of one of the battery cells 2, and the second end plate 14 has a guide port 133 that passes through the second end plate 14 along the thickness direction of the second end plate 14, and at least a portion of the guide port 133 is opposite to the explosion-proof valve 22 of one of the battery cells 2.

[0077] Therefore, when thermal runaway occurs in the battery cell 2, the explosion-proof valve 22 opens and the electrolyte sprayed out of the battery cell 2 can be discharged from the shell 1 through the guide port 133, thereby effectively preventing the accumulation of electrolyte from causing more serious disasters such as short circuit and fire.

[0078] Furthermore, module 100 includes a bracket 5. Bracket 5 is located within and connected to housing 1. Bracket 5 is used to divide the housing space 11 of housing 1 into a first space 111 and a second space 112. Multiple battery cells 2 are located within first space 111. A flow guide 133 is located at the end of first end plate 13 facing away from second space 112. This effectively prevents electrolyte flowing out of flow guide 133 from affecting electrical components within second space 112, improving safety.

[0079] At the same time, when multiple modules 100 are stacked along the second direction, the first space 111 is located below the second space 112. Therefore, such a setting further facilitates the discharge of the electrolyte from the guide port 133 outside the shell 1, further preventing the accumulation of electrolyte from causing more serious disasters such as short circuit and fire.

[0080] In some embodiments of the present invention, Figure 3 and Figure 9As shown, the second end plate 14 has a flow guide 133 extending through the second end plate 14 along its thickness. At least a portion of the flow guide 133 faces the explosion-proof valve 22 of one of the battery cells 2. Therefore, if thermal runaway occurs in the battery cell 2, the electrolyte that is ejected from the battery cell 2 by the explosion-proof valve 22 opening can be discharged from the housing 1 through the flow guide 133, effectively preventing electrolyte accumulation from causing more serious hazards such as short circuits and fires.

[0081] In some embodiments of the present invention, Figure 3 and Figure 9 As shown, the side of the flow guide 133 away from the explosion-proof valve 22 is provided with an explosion-proof patch 7, which is used to block the flow guide 133. Therefore, when thermal runaway occurs in the battery cell 2, the internal pressure increases, and the explosion-proof patch 7 on the side of the flow guide 133 away from the explosion-proof valve 22 will be opened, so that the electrolyte can flow from the flow guide 133 to the outside of the shell 1, thereby effectively preventing the accumulation of electrolyte from causing more serious disasters such as short circuits and fires. At the same time, when thermal runaway does not occur in the battery cell 2, the flow guide 133 is blocked by the explosion-proof patch 7 to ensure the sealing and insulation of the internal space of the shell 1, ensuring that the energy storage device 1000 using this module 100 maintains efficient and stable operation in a complex working environment.

[0082] Other structures and operations of the module 100 and the energy storage device 1000 according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0083] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A module, characterized in that: include: case; A battery cell, wherein the battery cell is multiple and located in the housing, the multiple battery cells are stacked along a first direction, and at least one side of the battery cell along a second direction has a pole and an explosion-proof valve, and the pole and the explosion-proof valve are spaced apart in a vertical direction; The foam glue is located at least on one side of the battery cell having the pole, the foam glue is opposite to the pole along the second direction, the foam glue is spaced apart from the explosion-proof valve along the up and down directions, and the foam glue is used to fill the gap between the shell and the battery cell, and the first direction, the second direction and the up and down directions are perpendicular.

2. The module according to claim 1, wherein: The foam rubber extends to the inner wall of the shell located on a side of the pole facing away from the explosion-proof valve.

3. The module according to claim 1, wherein: Also includes: The aerogel is located between any two adjacent battery cells, and the aerogel has foam at both ends along the second direction, the foam extends along the up-down direction, and the two ends of the foam along the first direction respectively abut against the surfaces of any two adjacent battery cells facing each other.

4. The module according to claim 1, wherein: Also includes: The bracket is located in the shell and connected to the shell, and the bracket is used to divide the accommodating space of the shell into a first space and a second space. The multiple battery cells are located in the first space.

5. An energy storage device, characterized in that: include: According to any one of claims 1 to 4, there are multiple modules, and the multiple modules are stacked along the second direction or the up-down direction.

6. The energy storage device according to claim 5, characterized in that The housing comprises: a bottom plate, a first end plate and a second end plate, wherein the bottom plate is a cooling plate, the first end plate and the second end plate are located on both sides of the bottom plate along the second direction and are connected to the bottom plate, When a plurality of the modules are stacked along the second direction, the housing further comprises a top cover, the first end plate and the second end plate are connected to the top cover on a side facing away from the bottom plate, and the bottom plate of one of any two adjacent modules is connected to the top cover of the other module; Alternatively, when a plurality of the modules are stacked up and down, the bottom plate of one of any two adjacent modules is connected to the first end plate and the second end plate of the other module on a side facing away from the bottom plate.

7. The energy storage device according to claim 6, characterized in that When a plurality of the modules are stacked along the second direction, the bottom plate of one module and the top cover of the other module in any two adjacent modules are bonded and connected by means of heat-conducting adhesive.

8. The energy storage device according to claim 6, characterized in that The first end plate and the second end plate both include a first plate and a second plate spaced apart along the second direction, the first plate of the first end plate and the first plate of the second end plate are located on the side of the first end plate and the second end plate facing away from each other, the first plate of the first end plate and the first plate of the second end plate have through holes penetrating the first plate along the thickness direction of the first plate, the through holes are multiple and spaced apart along the first direction, any two adjacent modules are connected by fasteners, the fasteners are multiple and correspond one to one to the through holes and are penetrated into the through holes.

9. The energy storage device according to claim 6, characterized in that The first end plate has a guide port penetrating the first end plate along a thickness direction of the first end plate, and at least a portion of the guide port is opposite to the explosion-proof valve of one of the battery cells; And / or, the second end plate has a guide port penetrating the second end plate along a thickness direction of the second end plate, and at least a portion of the guide port is opposite to the explosion-proof valve of one of the battery cells.

10. The energy storage device according to claim 9, characterized in that: An explosion-proof patch is provided on the side of the diversion port facing away from the explosion-proof valve, and the explosion-proof patch is used to block the diversion port.

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