Energy storage containers
Patent Information
- Authority / Receiving Office
- TH · TH
- Patent Type
- Applications
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
- Filing Date
- 2023-01-03
- Publication Date
- 2026-06-29
Smart Images
Figure 00000001_0000 
Figure 00000006_0000 
Figure 00000006_0001
Abstract
Description
Energy storage container
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to Chinese patent application 202220093869.5, filed on January 14, 2022, entitled “Energy Storage Container,” the entire contents of which are incorporated herein by reference. Technical Field
[0003] The embodiments of the present application relate to the field of energy storage, and more specifically, to an energy storage container. Background Art
[0004] With global support for the development of new energy technologies increasing, various energy storage technologies are gaining significant research significance. Containers are widely used as a form of energy storage. To ensure the performance of batteries stored within these containers, the thermal insulation and safety design of these containers are crucial.
[0005] In view of this, how to balance the thermal insulation and safety of energy storage containers is a technical problem that needs to be solved urgently.
[0006] Summary of the Invention
[0007] The present application provides an energy storage container that can provide both thermal insulation and safety.
[0008] In a first aspect, an energy storage container is provided, comprising: a battery compartment accommodating a plurality of batteries; an exhaust channel is provided between each of the plurality of batteries and the compartment wall of the battery compartment, the exhaust channel being used to discharge gas generated inside the battery to the outside of the battery compartment, and the internal space of the exhaust channel is isolated from the internal space of the battery compartment; wherein the compartment wall and / or the exhaust channel of the battery compartment are provided with an insulation member, the insulation member being used to insulate the internal space of the battery compartment.
[0009] Through the technical solutions of the embodiments of this application, an exhaust duct is provided between each battery and the battery compartment wall in the battery storage container. This duct is used to discharge high-temperature, high-pressure substances, such as gases, generated within the battery compartment to the exterior of the battery compartment, thereby preventing these substances from affecting other components within the compartment and ensuring the safety of the battery compartment. Furthermore, the battery compartment walls and / or the exhaust duct are provided with insulation, which can insulate the interior of the battery compartment to ensure the performance of the batteries within the compartment.
[0010] In some possible embodiments, the exhaust channel includes a first exhaust channel section and a second exhaust channel section; multiple batteries are connected one-to-one to multiple first exhaust channel sections, multiple first exhaust channel sections are connected to at least one second exhaust channel section, and at least one second exhaust channel section is connected to the warehouse wall of the battery compartment.
[0011] Through the technical solution of this embodiment, the exhaust channel includes two exhaust channel sections, and multiple first exhaust channel sections corresponding to multiple batteries are connected to at least one second exhaust channel section. The number of the second exhaust channel sections is relatively small, which can avoid the multiple exhaust channels being connected to the warehouse wall of the battery warehouse and affecting the thermal insulation performance of the battery warehouse.
[0012] In some possible implementations, the multiple batteries are connected to the multiple exhaust channels in a one-to-one correspondence, and the multiple exhaust channels are all connected to the compartment wall of the battery compartment.
[0013] Through the technical solution of this embodiment, the size of the exhaust channel corresponding to each battery can be the same, which facilitates the standardized production of the exhaust channel, and the exhaust channel can also be more conveniently installed between the battery and the battery warehouse wall, thereby improving the production efficiency of the energy storage container.
[0014] In some possible embodiments, a weak area is provided in the wall of the battery compartment, and an exhaust channel connects the battery and the weak area; wherein the thickness of the weak area is less than the thickness of other areas of the compartment wall, and the weak area is used to rupture to release the gas pressure when the gas pressure in the exhaust channel is greater than a threshold value.
[0015] This embodiment provides a weak area on the battery compartment wall. This area is simple to implement and effectively relieves pressure. Compared to solutions where the weak area is a through hole, this weak area isolates the exhaust passage from the outside environment, reducing the impact of ambient temperature fluctuations on the exhaust passage's internal temperature to a certain extent, thereby improving the battery compartment's thermal insulation performance.
[0016] In some possible embodiments, a first pressure relief mechanism is provided on the wall of the battery compartment, and an exhaust channel connects the battery and the first pressure relief mechanism; the first pressure relief mechanism is used to actuate to release the gas pressure in the exhaust channel when the gas pressure in the exhaust channel is greater than a threshold value.
[0017] Through the technical solution of this embodiment, the battery compartment wall discharges battery waste through a first pressure relief mechanism. This highly reliable first pressure relief mechanism ensures that battery waste is discharged outside the battery compartment through the first pressure relief mechanism, thereby ensuring the safety of the energy storage container. Furthermore, this first pressure relief mechanism isolates the exhaust duct from the external environment, which helps improve the thermal insulation performance of the battery compartment.
[0018] In some possible embodiments, the battery is provided with a second pressure relief mechanism, which is used to actuate to release the gas pressure inside the battery when the gas pressure inside the battery is greater than a threshold value; the exhaust channel connects the second pressure relief mechanism and the compartment wall of the battery compartment.
[0019] Through the technical solution of this embodiment, the exhaust channel is directly connected to the second pressure relief mechanism on the battery and the wall of the battery compartment, which can facilitate the discharge of all emissions emitted by the battery through the exhaust channel. This method has a high efficiency in collecting emissions such as gas emitted by the battery and can more reliably ensure the safety performance of the energy storage container.
[0020] In some possible implementations, a dimension of the exhaust passage in a first direction is adapted to a dimension of the second pressure relief mechanism in the first direction, and the first direction is parallel to a radial direction of the exhaust passage.
[0021] Through the technical solution of this embodiment, the exhaust channel can be reliably connected to the second pressure relief mechanism of the battery, thereby further improving the exhaust channel's collection efficiency of gases and other emissions emitted by the battery, thereby further ensuring the safety performance of the energy storage container.
[0022] In some possible implementations, the battery is provided with a mounting hole, and the first end of the exhaust channel is inserted into the mounting hole to achieve connection between the exhaust channel and the battery.
[0023] Through the technical solution of this embodiment, the installation method of the exhaust duct is relatively simple, which can improve the overall manufacturing efficiency of the energy storage container.
[0024] In some possible implementations, a second pressure relief mechanism of the battery is correspondingly provided on the mounting hole facing the interior of the battery.
[0025] Through the technical solution of this embodiment, the exhaust channel in the mounting hole corresponds to the second pressure relief mechanism of the battery, and most of the emissions emitted by the battery can be discharged through the exhaust channel, thereby ensuring the safety performance of the energy storage container.
[0026] In some possible embodiments, the second end of the exhaust channel has a first mounting portion with an annular structure, and the first mounting portion is parallel to and abuts against the wall of the battery compartment to achieve connection between the exhaust channel and the wall of the battery compartment.
[0027] With this embodiment, the second end of the exhaust duct has a first mounting portion. This first mounting portion is an annular structure and is arranged parallel to the battery compartment wall. The exhaust duct is attached to the compartment wall via this first mounting portion, increasing the contact area between the exhaust duct and the compartment wall, thereby improving the reliability of the exhaust duct's installation on the compartment wall.
[0028] In some possible embodiments, the battery compartment wall has a second mounting portion extending toward the interior of the battery compartment, and the second mounting portion is fitted onto the inner wall or outer wall of the exhaust channel to achieve connection between the exhaust channel and the battery compartment wall.
[0029] Through the technical solution of this embodiment, the exhaust channel and the second mounting portion are fitted together to realize the mutual connection between the exhaust channel and the warehouse wall of the battery compartment. This method is simple to implement, and the connection reliability between the exhaust channel and the warehouse wall is high, which is conducive to improving the installation reliability of the exhaust channel in the battery compartment and improving the production efficiency of the energy storage container.
[0030] In some possible implementations, a seal is provided at at least one end of the exhaust channel, and the exhaust channel is connected to the battery and / or a compartment wall of the battery compartment through the seal.
[0031] Through the technical solution of this embodiment, the exhaust channel can be connected to the battery and / or the battery compartment wall through a seal, thereby ensuring the sealing of the connection between the exhaust channel and the battery and / or the battery compartment wall. Emissions such as high-temperature and high-pressure gases discharged by the battery can be smoothly discharged to the outside of the battery compartment through the exhaust channel with good sealing performance, thereby ensuring the safety of the energy storage container.
[0032] In some possible implementations, the sealing member is a sealing gasket or soft glue.
[0033] In some possible implementations, the thermal insulation member provided on the exhaust passage and / or the compartment wall of the battery compartment includes rock wool.
[0034] Through the technical solution of this embodiment, the heat-insulating component can be easily installed on the warehouse wall and / or the exhaust passage, and can provide a better heat-insulating effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.
[0036] FIG1 is a schematic diagram of the appearance of an energy storage container disclosed in one embodiment of the present application;
[0037] FIG2 is a schematic structural diagram of an energy storage container disclosed in an embodiment of the present application;
[0038] FIG3 is a schematic structural diagram of another energy storage container disclosed in an embodiment of the present application;
[0039] FIG4 is a schematic structural diagram of another energy storage container disclosed in an embodiment of the present application;
[0040] FIG5 is a schematic structural diagram of another energy storage container disclosed in an embodiment of the present application;
[0041] FIG6 is a schematic structural diagram of another energy storage container disclosed in an embodiment of the present application;
[0042] FIG7 is a schematic structural diagram of an exhaust channel connected to a battery compartment wall according to an embodiment of the present application;
[0043] FIG8 is a schematic structural diagram of another exhaust channel connected to the battery compartment wall provided in an embodiment of the present application.
[0044] In the drawings, the drawings are not drawn to scale. DETAILED DESCRIPTION
[0045] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, that is, the present application is not limited to the described embodiments.
[0046] In the description of this application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are only for the convenience of describing this application 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 cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly perpendicular, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.
[0047] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0048] The term "and / or" in this application simply describes an association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.
[0049] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.
[0050] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.
[0051] Energy storage containers are relatively integrated energy storage devices. Specifically, they contain a battery compartment, which can accommodate multiple batteries, main control components, busbar components, thermal management components, and other components.
[0052] A battery can also be referred to as an electrical box, which includes a box body and one or more battery cells enclosed by the box body. Optionally, the battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., which are not limited in this embodiment of the present application. The battery cells may be cylindrical, flat, rectangular, or other shapes, etc., which are not limited in this embodiment of the present application.
[0053] Optionally, the multiple batteries arranged in the battery compartment can be connected in series, in parallel, or in series and parallel. In some embodiments, the multiple batteries can be connected to the main control component via a busbar component, and the main control component can realize electrical connection between the multiple batteries.
[0054] In addition to multiple batteries, main control components, and busbar components, the energy storage container also includes thermal management components. These include, but are not limited to, air conditioning components, fan components, water cooling pipes, etc., which can be used to thermally manage the interior of the energy storage container and adjust the temperature inside the container.
[0055] The battery casing is sealed to prevent the external environment from affecting the battery cells it contains. During operation, chemical reactions within the battery cells can cause changes in internal pressure or temperature. To ensure overall battery safety, the battery casing and cells are equipped with pressure relief mechanisms.
[0056] The pressure relief mechanism on a battery cell refers to an element or component that activates to release the internal pressure or temperature of the battery cell when the internal pressure or temperature reaches a predetermined threshold. When the pressure relief mechanism on the battery cell is activated, the high-temperature and high-pressure substances inside the battery cell are discharged into the battery compartment through the pressure relief mechanism on the battery cell. Furthermore, when the internal pressure or temperature of the battery compartment reaches a predetermined threshold, the pressure relief mechanism on the battery compartment is also activated, and the high-temperature and high-pressure substances from the battery cell are discharged into the battery compartment through the pressure relief mechanism on the battery compartment.
[0057] Although the safety performance of the battery can be guaranteed to a certain extent through the above implementation, when the pressure relief mechanism on the battery box is actuated, high-temperature and high-pressure substances from inside the battery will enter the battery compartment in the energy storage container body, introducing certain safety hazards in the battery compartment.
[0058] Furthermore, battery performance is closely linked to the ambient temperature. For example, excessively high ambient temperatures increase the risk of battery failure and explosion, while excessively low temperatures can affect the electrochemical reactions within the battery, impacting its proper operation and lifespan. Therefore, energy storage containers used to store batteries must possess excellent thermal insulation to minimize the impact of environmental fluctuations on the batteries and ensure optimal performance.
[0059] In view of this, the present application provides an energy storage container. In the battery compartment of this energy storage container, an exhaust channel is provided between each battery and the compartment wall. This exhaust channel is used to discharge high-temperature and high-pressure substances generated inside the battery to the outside of the battery compartment, thereby preventing this high-temperature and high-pressure substance from affecting other components in the battery compartment and ensuring the safety performance of the battery compartment. On this basis, the compartment wall and / or the exhaust channel are provided with insulation components, which can insulate the internal space of the battery compartment to ensure the performance of the batteries in the battery compartment.
[0060] The technical solutions described in the embodiments of this application are applicable to energy storage containers of various types and sizes. For example, the energy storage container can be a standard 40-foot or 20-foot container, or a custom container with customized dimensions. The batteries housed in the energy storage container include, but are not limited to, lithium batteries, such as lithium iron phosphate batteries, lithium manganese oxide batteries, or lithium cobalt oxide batteries.
[0061] FIG1 shows a schematic diagram of the appearance of an energy storage container 100 provided in an embodiment of the present application.
[0062] As shown in Figure 1, the energy storage container 100 may be a regular rectangular parallelepiped structure, wherein the six faces of the rectangular parallelepiped are the six outer walls of the energy storage container 100. Setting the energy storage container 100 as a rectangular parallelepiped structure can facilitate the fixed placement and transportation of the energy storage container 100.
[0063] The interior of the energy storage container 100 is a hollow structure that can include a battery compartment to accommodate multiple batteries. In addition to the battery compartment, the interior of the energy storage container 100 can also be divided into multiple functional compartments based on actual needs. Each functional compartment houses other functional equipment components that manage or assist in the operation of the multiple batteries, such as a convergence component, a main control component, and a thermal management component.
[0064] FIG2 shows a schematic structural diagram of an energy storage container 100 provided in another embodiment of the present application.
[0065] As shown in FIG2 , in an embodiment of the present application, an energy storage container 100 includes a battery compartment 110 that accommodates a plurality of batteries 10. An exhaust duct 120 is provided between each of the plurality of batteries 10 and the compartment wall 111 of the battery compartment 110. The exhaust duct 120 is used to discharge gases generated within the battery 10 to the exterior of the battery compartment 110, and the interior space of the exhaust duct 120 is isolated from the interior space of the battery compartment 110. Furthermore, the compartment wall 111 and / or the exhaust duct 120 of the battery compartment 110 are provided with an insulation member 130 that is used to insulate the interior space of the battery compartment 110.
[0066] Specifically, in the embodiment shown in FIG2 , only the battery compartment 110 in the energy storage container 100 is schematically shown, and only some of the batteries 10 in the energy storage container 100 are schematically shown. In addition to the battery compartment 110, the energy storage container 100 may also include other functional compartments, and the embodiment of the present application does not specifically limit the internal structure of the energy storage container 100.
[0067] Optionally, the wall 111 of the battery compartment 110 may be an outer wall of the energy storage container 100, contacting the external environment of the energy storage container 100. Alternatively, the wall 111 of the battery compartment 110 may be an inner wall of the energy storage container 100. For example, the wall 111 may be a wall shared by the battery compartment 110 and other functional compartments in the energy storage container 100.
[0068] Specifically, if a battery 10 contained in the battery compartment 110 explodes, the high-temperature, high-pressure substances generated inside it will leak into the battery compartment 110, affecting other batteries 10 and other related electrical components in the battery compartment 110, which may in turn cause greater safety issues. Therefore, to prevent this phenomenon from occurring, an exhaust channel 120 is provided between each battery 10 in the battery compartment 110 and the compartment wall 111 of the battery compartment 110. When any battery 10 in the battery compartment 110 explodes, the high-temperature, high-pressure substances generated inside it can be discharged to the outside of the battery compartment 110 through the exhaust channel 120, thereby ensuring the safety of the battery compartment 110.
[0069] Optionally, the channel wall of the exhaust channel 120 can be made of a rigid material or a flexible material, so as to be able to withstand the impact and temperature of high-temperature and high-pressure substances discharged from the battery 10. The embodiment of the present application does not limit the specific implementation method of the channel wall of the exhaust channel 120.
[0070] It should be noted that the high-temperature and high-pressure substances released from the battery 10 include, but are not limited to: electrolyte, dissolved or split solid fragments, high-temperature and high-pressure gas generated by the reaction, flame, etc.
[0071] Optionally, as shown in Figure 2, the exhaust channel 120 is a linear channel, and its axial dimension can be the straight-line distance between the battery 10 and the compartment wall 111 of the battery compartment 110, so that the substance discharged from the battery 10 can quickly pass through the exhaust channel 120 to reach the compartment wall 111 of the battery compartment 110.
[0072] Alternatively, in other embodiments, the exhaust passage 120 may be connected between the battery 10 and the compartment wall 111 of the battery compartment 110 in a broken line or curved line shape according to the arrangement of relevant components in the battery compartment 110. The specific shape of the exhaust passage 120 is not limited in this embodiment of the application.
[0073] In addition, since the internal space of the exhaust channel 120 is isolated from the internal space of the battery compartment 110, in order to prevent the temperature changes in the internal space of the exhaust channel 120 from affecting the performance of the battery 10 in the battery compartment 110, as shown in Figure 2, the exhaust channel 120 can be provided with an insulation component 130 to further isolate the internal space of the exhaust channel 120 from the internal space of the battery compartment 110, and to insulate the internal space of the battery compartment 110, thereby ensuring the performance of the battery 10 contained in the battery compartment 110.
[0074] Furthermore, the compartment wall 111 of the battery compartment 110 may also be provided with a heat-insulating member 130 . The heat-insulating member 130 provided on the compartment wall 111 can also insulate the internal space of the battery compartment 110 , thereby ensuring the performance of the battery 10 contained in the battery compartment 110 .
[0075] Optionally, in the embodiment of the present application, the thermal insulation member 130 includes but is not limited to rock wool, which is easy to install and set on the warehouse wall 111 and / or the exhaust passage 120 and can provide better thermal insulation effect.
[0076] In summary, through the technical solutions of the embodiments of the present application, in the battery compartment 110 of the energy storage container 100, an exhaust duct 120 is provided between each battery 10 and the compartment wall 111 of the battery compartment 110. The exhaust duct 120 is used to discharge high-temperature and high-pressure substances, such as gases, generated inside the battery 10 to the outside of the battery compartment 110, thereby preventing these high-temperature and high-pressure substances from affecting other components in the battery compartment 110 and ensuring the safety performance of the battery compartment 110. On this basis, the compartment wall 111 and / or the exhaust duct 120 of the battery compartment 110 are provided with an insulation member 130, which can insulate the internal space of the battery compartment 110 to ensure the performance of the batteries 10 in the battery compartment 110.
[0077] Optionally, in some embodiments, as shown in FIG. 2 , the plurality of batteries 10 are connected to the plurality of exhaust channels 120 in a one-to-one correspondence, and the plurality of exhaust channels 120 are all connected to the compartment wall 111 of the battery compartment 110 .
[0078] Specifically, in this embodiment, the number of the exhaust channels 120 is equal to the number of the batteries 10 , the multiple exhaust channels 120 corresponding to the batteries 10 are arranged separately from each other, and the exhaust channels 120 corresponding to different batteries 10 are not connected to each other.
[0079] In this embodiment, the exhaust passages 120 corresponding to each battery 10 can have the same size, thereby facilitating standardized production of the exhaust passages 120 , and the exhaust passages 120 can also be more conveniently installed between the battery 10 and the storage wall 111 of the battery 110 , thereby improving the production efficiency of the energy storage container 100 .
[0080] FIG3 shows a schematic structural diagram of an energy storage container 100 provided in another embodiment of the present application.
[0081] As shown in Figure 3, in an embodiment of the present application, the exhaust channel 120 includes a first exhaust channel section 121 and a second exhaust channel section 122, and multiple batteries 10 are connected one-to-one to the multiple first exhaust channel sections 121, and the multiple first exhaust channel sections 121 are connected to at least one second exhaust channel section 122, and the at least one second exhaust channel section 122 is connected to the compartment wall 111 of the battery compartment 110.
[0082] Specifically, in the embodiment of the present application, the exhaust channels 120 corresponding to different batteries 10 are interconnected. The number of first exhaust channel segments 121 interconnected with the plurality of batteries 10 is equal to the number of batteries 10. The number of second exhaust channel segments 122 connected to the plurality of first exhaust channel segments 121 is less than the number of batteries 10.
[0083] As an example but not a limitation, as shown in FIG3 , the number of the second exhaust channel segment 122 is one.
[0084] Alternatively, in the embodiment shown in FIG3 , the first exhaust channel segment 121 and the second exhaust channel segment 122 can both be considered linear exhaust channel segments, with the axial directions of the first exhaust channel segment 121 and the second exhaust channel segment 122 both being perpendicular to the compartment wall 111 of the battery compartment 110. Multiple first exhaust channel segments 121 are connected to the second exhaust channel segment 122 via a third exhaust channel segment 123 to form a complete exhaust channel 120 between the battery 10 and the compartment wall 111. The third exhaust channel segment 123 can also be considered a linear exhaust channel segment, with the axial direction of the third exhaust channel segment 123 being parallel to the compartment wall 111 of the battery compartment 110.
[0085] It can be understood that Figure 3 is only for illustration and not limitation, and shows the shape and connection method of a first exhaust channel section 121 and a second exhaust channel section 122 provided in an embodiment of the present application. In addition to the fact that the first exhaust channel section 121 and the second exhaust channel section 122 are both straight channel sections as shown in Figure 3, and the first exhaust channel section 121 is connected to the second exhaust channel section 122 through the third exhaust channel section 123, the first exhaust channel section 121 can also be directly connected to the second exhaust channel section 122, and the first exhaust channel section 121 and the second exhaust channel section 122 can also be curved or broken line channel sections. The embodiment of the present application does not specifically limit the shape and connection method of the first exhaust channel section 121 and the second exhaust channel section 122.
[0086] In the embodiment shown in FIG3 , the first exhaust duct section 121 is perpendicular to the wall of the battery 10 to which it is connected. Thus, exhaust from the battery 10 can be quickly discharged through the first exhaust duct section 121. Furthermore, the vertical third exhaust duct section 123 facilitates the connection between the first exhaust duct section 121 and the second exhaust duct section 122. The overall design of the exhaust duct 120 is relatively regular, making it easier to install the exhaust duct 120 in the battery compartment 110.
[0087] Through the technical solution of the embodiment of the present application, the exhaust channel 120 includes two exhaust channel sections, and multiple first exhaust channel sections 121 corresponding to multiple batteries 10 are connected to at least one second exhaust channel section 122. The number of the second exhaust channel sections 122 is relatively small, which can avoid the multiple exhaust channels 120 being connected to the warehouse wall 111 of the battery compartment 110 and affecting the thermal insulation performance of the battery compartment 110.
[0088] Alternatively, as shown in FIG3 , since the second exhaust duct section 122 is connected to the warehouse wall 111, the second exhaust duct section 122 is easily affected by the external environment, while the first exhaust duct section 121 is located away from the warehouse wall 111 and is less affected by the external environment. Therefore, in the embodiment shown in FIG3 , the thermal insulation member 130 may be provided only in the second exhaust duct section 122 and not in the first exhaust duct section 121.
[0089] Alternatively, in other embodiments, the thermal insulation member 130 may also completely cover all exhaust channel sections of the exhaust channel 120 , that is, cover the first exhaust channel section 121 , the second exhaust channel section 122 , and the third exhaust channel section 123 .
[0090] Based on the embodiment shown in FIG2 , FIG4 shows a schematic structural diagram of an energy storage container 100 provided in another embodiment of the present application.
[0091] As shown in Figure 4, in an embodiment of the present application, the compartment wall 111 of the battery compartment 110 is provided with a weak area 112, and the exhaust channel 120 connects the battery 10 and the weak area 112, wherein the thickness of the weak area 112 is less than the thickness of other areas of the compartment wall 111, and the weak area 112 is used to rupture when the gas pressure in the exhaust channel 120 is greater than a threshold value to release the gas pressure.
[0092] Optionally, the material of the weak area 112 may be different from that of the warehouse wall 111. For example, the material strength of the weak area 112 may be lower than that of the warehouse wall 111, so that the weak area 112 is more easily ruptured under pressure than the warehouse wall 111. Alternatively, the thickness of the weak area 112 may be lower than that of the warehouse wall 111, which may also make the weak area 112 more easily ruptured under pressure than the warehouse wall 111.
[0093] Optionally, the weak area 112 may include various forms such as grooves or notches, which are simple to implement and can achieve the desired pressure relief effect. Compared to a technical solution in which the weak area 112 is designed as a through hole, the weak area 112 can block the exhaust passage 120 from the external environment, to a certain extent reducing the impact of external temperature changes on the internal temperature of the exhaust passage 120, thereby improving the thermal insulation performance of the battery compartment 110.
[0094] Based on the embodiment shown in FIG3 , FIG5 shows a schematic structural diagram of an energy storage container 100 provided in another embodiment of the present application.
[0095] As shown in Figure 5, in an embodiment of the present application, the compartment wall 111 of the battery compartment 110 is provided with a first pressure relief mechanism 113, and the exhaust channel 120 connects the battery 10 and the first pressure relief mechanism 113. The first pressure relief mechanism 113 is used to actuate to release the gas pressure in the exhaust channel 120 when the gas pressure in the exhaust channel 120 is greater than a threshold value.
[0096] Specifically, in the embodiment of the present application, the first pressure relief mechanism 113 may be a pressure-sensitive component. The first pressure relief mechanism 113 has a preset actuation pressure threshold. When the gas pressure in the exhaust passage 120 exceeds the preset actuation pressure threshold, the first pressure relief mechanism 113 is actuated to release the gas pressure in the exhaust passage 120. For example, the first pressure relief mechanism 113 may be an explosion-proof pressure relief component such as an explosion-proof valve, explosion-proof plate, or explosion-proof disk.
[0097] Through the technical solution of this embodiment, the exhaust from the battery 10 is discharged through the first pressure relief mechanism 113. This first pressure relief mechanism 113 is highly reliable and can reliably ensure that the exhaust from the battery 10 is discharged outside the battery compartment 110 through the first pressure relief mechanism 113, thereby ensuring the safety of the energy storage container 100. Furthermore, the first pressure relief mechanism 113 can also block the exhaust duct 120 from the external environment of the battery compartment 110, which helps improve the thermal insulation performance of the battery compartment 110. Furthermore, if multiple batteries 10 in the battery compartment 110 are connected to the compartment wall of the battery compartment 110 via a smaller number of second exhaust duct sections 122, the number of first pressure relief mechanisms 113 connected to these second exhaust duct sections 122 is also smaller, thereby reducing the overall manufacturing cost of the energy storage container 100.
[0098] It should be noted that, in the example shown in FIG5 , the first pressure relief mechanism 113 is arranged at one end of the second exhaust channel section 122 in the embodiment shown in FIG3 . In addition to the method shown in this example, the first pressure relief mechanism 113 can also be arranged at one end of each exhaust channel 120 in the embodiment shown in FIG2 .
[0099] Similarly, in the example shown in FIG4 , the weak area 112 is provided at one end of each exhaust channel 120 in the embodiment shown in FIG2 . In addition to the method shown in this example, the weak area 112 may also be provided at one end of the second exhaust channel segment 122 in the embodiment shown in FIG3 .
[0100] FIG6 shows a schematic structural diagram of an energy storage container 100 provided in another embodiment of the present application.
[0101] As shown in Figure 6, in an embodiment of the present application, the battery 10 is provided with a second pressure relief mechanism 101, which is used to actuate to release the gas pressure inside the battery 10 when the gas pressure inside the battery 10 is greater than a threshold value, and the exhaust channel 120 connects the second pressure relief mechanism 101 and the compartment wall 111 of the battery compartment 110.
[0102] Specifically, in the embodiment of the present application, the second pressure relief mechanism 101 provided on the battery 10 is a pressure relief mechanism on the box of the battery 10. The second pressure relief mechanism 101 can also be a pressure-sensitive component, such as an explosion-proof valve, an explosion-proof plate, an explosion-proof piece, etc.
[0103] When at least one battery cell inside the battery 10 explodes and releases high-temperature, high-pressure gas and other emissions, the emissions will be discharged through the second pressure relief mechanism 101. The exhaust channel 120 is directly connected to the second pressure relief mechanism 101 on the battery 10, which can facilitate the discharge of all emissions emitted by the battery 10 through the exhaust channel 120. This method has a high efficiency in collecting emissions such as gas emitted by the battery 10, and can more reliably ensure the safety performance of the energy storage container 100.
[0104] Optionally, in order to ensure the connection effect between the exhaust channel 120 and the second pressure relief mechanism 101, the size of the exhaust channel 120 in the first direction is adapted to the size of the second pressure relief mechanism 101 in the first direction, wherein the first direction is parallel to the radial direction of the exhaust channel 120.
[0105] Through the technical solution of this embodiment, the exhaust channel 120 can be reliably connected to the second pressure relief mechanism 101 of the battery 10, thereby further improving the efficiency of the exhaust channel 120 in collecting gases and other emissions discharged from the battery 10, thereby further ensuring the safety performance of the energy storage container 100.
[0106] In addition to the above-mentioned exhaust channel 120 being connected to the second pressure relief mechanism 101 of the battery 10 to achieve connection between the exhaust channel 120 and the battery 10, optionally, in other embodiments, the battery 10 is provided with a mounting hole, and the first end of the exhaust channel 120 is inserted into the mounting hole to achieve connection between the exhaust channel 120 and the battery 10.
[0107] Specifically, in this embodiment, the battery 10 housing is provided with a mounting hole whose size is adapted to the radial dimension of the exhaust duct 120, facilitating insertion of the exhaust duct 120. This embodiment simplifies the installation of the exhaust duct 120, thereby improving the overall manufacturing efficiency of the energy storage container 100.
[0108] On this basis, to improve the efficiency of the exhaust duct 120 in collecting gases and other emissions from the battery 10, the mounting hole facing the interior of the battery 10 may be provided with the second pressure relief mechanism 101 of the battery 10. In this case, the exhaust duct 120 within the mounting hole corresponds to the second pressure relief mechanism 101 of the battery 10, allowing most emissions from the battery 10 to be discharged through the exhaust duct 120, thereby ensuring the safety of the energy storage container 100.
[0109] FIG7 shows a schematic structural diagram of an exhaust channel 120 connected to a compartment wall 111 of a battery compartment 110 according to an embodiment of the present application.
[0110] As shown in Figure 7, in this embodiment of the present application, the second end of the exhaust channel 120 has a first mounting portion 124 with an annular structure. The first mounting portion 124 is parallel to and abuts against the compartment wall 111 of the battery compartment 110 to achieve connection between the exhaust channel 120 and the compartment wall 111 of the battery compartment 110.
[0111] As an example, in the embodiment shown in FIG7 , the first end of the exhaust channel 120 is connected to the second pressure relief mechanism 101 of the battery 10, and the second end of the exhaust channel 120 abuts against the compartment wall 111 of the battery compartment 110. Alternatively, as an alternative embodiment, the first end of the exhaust channel 120 may be inserted into the mounting hole of the battery case 10.
[0112] As an example, in the embodiment shown in FIG7 , a weak area 112 may be provided on the tank wall 111, and the second end of the exhaust channel 120 may face the weak area 112. Alternatively, as an alternative embodiment, a first pressure relief mechanism 113 may be provided on the tank wall 111, and the second end of the exhaust channel 120 may be connected to the first pressure relief mechanism 113. Alternatively, as another alternative embodiment, a through hole may be provided on the tank wall 111, and the second end of the exhaust channel 120 may face the through hole.
[0113] In addition, in the embodiment shown in FIG7 , the second end of the exhaust duct 120 has a first mounting portion 124. This first mounting portion 124 may be an annular structure disposed parallel to the compartment wall 111 of the battery compartment 110. The exhaust duct 120 is attached to the compartment wall 111 via this first mounting portion 124, which increases the contact area between the exhaust duct 120 and the compartment wall 111, thereby improving the reliability of the installation of the exhaust duct 120 on the compartment wall 111.
[0114] Optionally, after the first mounting portion 124 is attached to the warehouse wall 111, the two can be reliably connected through various connection means in related technologies, for example, the two are connected through a welding process, or mechanical structural parts such as bolts, etc. The embodiment of the present application does not limit the specific connection method between the second mounting portion 124 and the warehouse wall 111.
[0115] FIG8 shows a schematic structural diagram of an exhaust channel 120 connected to a compartment wall 111 of a battery compartment 110 according to another embodiment of the present application.
[0116] As shown in Figure 8, the compartment wall 111 of the battery compartment 110 has a second mounting portion 114 extending toward the interior of the battery compartment 110. The second mounting portion 114 is fitted onto the inner wall or outer wall of the exhaust channel 120 to achieve connection between the exhaust channel 120 and the compartment wall 111 of the battery compartment 110.
[0117] As an example, in the embodiment shown in FIG8 , the first end of the exhaust channel 120 is connected to the second pressure relief mechanism 101 of the battery 10, and the second end of the exhaust channel 120 is sleeved on the second mounting portion 114. Alternatively, as an alternative embodiment, the first end of the exhaust channel 120 can also be inserted into the mounting hole of the battery case 10. Alternatively, as another alternative embodiment, the second end of the exhaust channel 120 is sleeved on the second mounting portion 114.
[0118] As an example, in the embodiment shown in FIG8 , a weak area 112 may be provided on the warehouse wall 111, and the second mounting portion 114 may be disposed around the weak area 112. Alternatively, as an alternative embodiment, a first pressure relief mechanism 113 may be provided on the warehouse wall 111, and the second mounting portion 114 may be disposed around the first pressure relief mechanism 113. Alternatively, as another alternative embodiment, a through hole may be provided on the warehouse wall 111, and the second mounting portion 114 may be disposed around the through hole.
[0119] In addition, in the embodiment shown in FIG. 8 , the second mounting portion 114 is a tubular structure, and its cross-sectional shape may be the same as the cross-sectional shape of the exhaust passage 120 , so that the two can be well adapted and fit together.
[0120] Through the technical solution of the embodiment of the present application, the exhaust duct 120 and the second mounting portion 114 are fitted together to realize the mutual connection between the exhaust duct 120 and the warehouse wall 111 of the battery compartment 110. This method is simple to implement, and the connection reliability between the exhaust duct 120 and the warehouse wall 111 is high, which is conducive to improving the installation reliability of the exhaust duct 120 in the battery compartment 110 and improving the production efficiency of the energy storage container 100.
[0121] Optionally, in some embodiments, a seal 140 is provided at at least one end of the exhaust channel 120 , and the exhaust channel 120 is connected to the battery 10 and / or the compartment wall 111 of the battery compartment 110 through the seal 140 .
[0122] For example, referring to FIG. 7 , a first mounting portion 124 is provided at the second end of the exhaust passage 120 , and the first mounting portion 124 is attached to the compartment wall 111 of the battery compartment 110 through a sealing member 140 .
[0123] For another example, referring to FIG8 , when the exhaust channel 120 is fitted onto the second mounting portion 114 , a seal 140 may be provided on the outer wall of the exhaust channel 120 near its second end, and the exhaust channel 120 and the second mounting portion 114 are connected to each other via the seal 140 .
[0124] 8 , the sealing member 140 may be disposed not only near the second end of the exhaust passage 120 but also near one end of the second mounting portion 114 facing the battery 10. In the embodiment shown in FIG8 , there may be multiple sealing members 140.
[0125] Optionally, the sealing member 140 includes but is not limited to: a sealing gasket or soft glue.
[0126] Through the technical solution of the embodiment of the present application, the exhaust channel 120 can be connected to the battery 10 and / or the warehouse wall 111 of the battery compartment 110 through the seal 140, thereby ensuring the sealing of the connection between the exhaust channel 120 and the battery 10 and / or the warehouse wall 111 of the battery compartment 110. Emissions such as high-temperature and high-pressure gases discharged by the battery 10 can be smoothly discharged to the outside of the battery compartment 110 through the exhaust channel 120 with better sealing, thereby ensuring the safety of the energy storage container 100.
[0127] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.
Claims
DEPCT671. Energy storage container (100) comprising: a battery compartment (110) containing a number of batteries (10), in which a vent (120) is provided between each of the batteries (10) and the compartment wall (111) of the battery compartment (110), in which the vent (120) is used to vent the gases produced inside the batteries (10) to the outside of the battery compartment (110), and the interior space of the vent (120) and the interior space of the battery compartment (110) are isolated from each other, and in which the compartment wall (111) of the battery compartment (110) and / or the vent (120) are provided with a thermal insulation element (130), in which the thermal insulation element (130) is used to thermally insulate the interior space of the battery compartment (110).2.Energy storage container (100) under claim 1, in which the vent (120) is made up of a section of the first vent (121) and a section of the second vent (122), and a number of batteries (10) are directly connected one-to-one to a number of sections of the first vent (121), in which a number of sections of the first vent (121) are connected to at least one section of the second vent (122), and at least one section of the second vent (122) is connected to the compartment wall (111) of the battery compartment (110).
3. Energy storage container (100) under claim 1, in which a number of batteries (10) are directly connected one-to-one to a number of vents (120), in which a number of vents (120) are connected to the compartment wall (111) of the battery compartment (110). 4.The energy storage container (100) under claim 1 in which the compartment walls (111) of the battery compartment (110) are provided with a weak area (112) and a vent (120) connects the battery (10) to the weak area (112) in which the thickness of the weak area (112) is less than the thickness of the other areas of the compartment walls (111) and the weak area (112) is used to break when the gas pressure inside the vent (120) exceeds the threshold value in order to 5. The energy storage container (100) under claim 1, in which the compartment wall (111) of the battery compartment (110) is provided with a first pressure relief mechanism (113) and a vent (120) connects the battery (10) to the first pressure relief mechanism (113), which is used to be activated when the gas pressure inside the vent (120) exceeds the threshold value in order to release the gas pressure inside the vent (120). 6.Energy storage container (100) under any one of claims 1 through 5, in which battery (10) is provided with a secondary pressure relief mechanism (101) which is used to be activated when the gas pressure inside battery (10) exceeds the threshold value in order to release the gas pressure inside battery (10) and a vent (120) which connects the secondary pressure relief mechanism (101) to the compartment wall (111) of the battery compartment (110).
7. Energy storage container (100) under claim 6. Where the size of the vent opening (120) in the first direction is adjusted to the size of the second pressure relief mechanism (101) in the first direction, which is parallel to the radial direction of the vent opening (120).
8. The energy storage container (100) under any of the claims 1 to 7, where the battery (10) is provided with a mounting hole, with the first end of the vent opening (120) inserted into the mounting hole to achieve the effect of connection between the vent opening (120) and the battery (10).9.Energy storage container (100) in accordance with claim 8, in which a second pressure relief mechanism (101) for battery (10) is provided within the mounting hole toward battery (10) in accordance with claim 1.
10. Energy storage container (100) in accordance with claims 1 through 9, in which the second end of the vent (120) has a first mounting section (124) in an annular structure, in which the first mounting section (124) is parallel to and adjacent to the compartment wall (111) of the battery compartment (110) to achieve a connection effect.
11. An energy storage container (100) under any of the claims 1 through 10 in which the compartment wall (111) of the battery compartment (110) has a second mounting section (114) that extends inward into the battery compartment (110), in which this second mounting section (114) is either encased within the inner wall or encased in the outer wall of the vent (120) to achieve a connection between the vent (120) and the compartment wall (111) of the battery compartment (110). 12.
13. An energy storage container (100) under any of the claims 1 to 11 in which at least one end of the vent (120) is provided with a sealing element (140) and the vent (120) is connected to the battery (10) and / or to the compartment wall (111) of the battery compartment (110) through a sealing element (140).
14. An energy storage container (100) under any of the claims 1 to 13 in which the sealing element (140) is a sealing gasket or soft rubber.
15. An energy storage container (100) under any of the claims 1 to 13 in which a thermal insulation element (130) is provided on the vent (120) and / or on the compartment wall (111) of the battery compartment (110) is composed of: mineral wool insulation;