Battery device, energy storage device, energy storage system, and charging network

Abstract

The application relates to the technical field of batteries, and provides a battery device, an energy storage device, an energy storage system and a charging network. The battery device comprises a battery box body and a battery module. The battery box body comprises a first box body and a second box body, and the first box body and the second box body surround a containing cavity; the battery module comprises a bracket and a plurality of battery monomers, and the plurality of battery monomers are arranged on the bracket; wherein the bracket is provided with a first hoisting part, the first hoisting part is used for hoisting the battery module, and at least one battery module is located in the containing cavity. The bracket and the battery monomers form the battery module as a whole. The bracket is provided with the first hoisting part, each bracket has an independent hoisting design, can be independently transported, is convenient to install and maintain, and the production and assembly efficiency is improved. The battery device can meet the high-integration requirement of the energy storage system, has high overall structural strength and is convenient to maintain.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device, energy storage device, energy storage system and charging network. Background Technology

[0002] In related technologies, energy storage boxes and containers have limited load-bearing capacity for individual battery cells, which restricts the improvement of the integration of energy storage systems and results in low assembly efficiency. Utility Model Content

[0003] In view of this, embodiments of this application provide a battery device, an energy storage device, an energy storage system, and a charging network, which can improve the integration and assembly efficiency of the battery device.

[0004] The technical solution of this application embodiment is implemented as follows: This application provides a battery device, the battery device comprising: The battery housing includes a first housing and a second housing, the first housing and the second housing forming a receiving cavity; A battery module includes a bracket and multiple battery cells, wherein the multiple battery cells are disposed on the bracket; The bracket has a first lifting part for lifting the battery module so that at least one of the battery modules is located in the receiving cavity.

[0005] The battery device provided in this application embodiment comprises a bracket and battery cells forming a battery module. The bracket supports the battery cells and has a strong load-bearing capacity, allowing for more battery cells to be installed in a single battery module, significantly improving the integration and energy density of the battery device. Furthermore, by using brackets to support the battery cells, assembly efficiency is improved. A first lifting section is provided in the bracket, enabling each bracket to have an independent lifting design, allowing for independent transportation, convenient installation and maintenance, and improved production assembly efficiency. Thus, the battery device can meet the high integration requirements of energy storage systems, with high overall structural strength, low cost, simple manufacturing process, and convenient maintenance.

[0006] In some embodiments, in each battery module, the number of battery cells disposed in the bracket is 1 to 12.

[0007] The number of layers is limited to 12 or less to prevent excessive stacking of individual battery cells in the battery module and excessive load on the bracket.

[0008] In some embodiments, the battery module has 1 to 12 layers.

[0009] The number of layers is limited to 12 or less to prevent the battery modules from stacking too many layers and causing excessive load on the second housing.

[0010] In some embodiments, the number of layers of the battery cells in different battery modules is the same.

[0011] In some embodiments, the number of layers of the battery cells in different battery modules is different.

[0012] In some embodiments, the battery module has multiple layers, and the battery device further includes: The reinforcing members are connected to the brackets of the different battery modules respectively.

[0013] In this way, the reinforcing components can strengthen the multi-layer battery module, making the connection between the multi-layer battery modules more stable.

[0014] In some embodiments, there are multiple reinforcing members, and the multiple reinforcing members are arranged in a cross shape.

[0015] The two reinforcing members are arranged in a cross shape, which can reduce costs, improve disassembly and assembly efficiency, and help reduce the weight of the battery device.

[0016] In some embodiments, there are multiple reinforcing members, and the multiple reinforcing members are arranged in a grid pattern.

[0017] A grid pattern refers to two sets of reinforcing members spaced apart along two directions, with the two directions intersecting to form a stable frame. The reinforcing members support each other, which can improve the structural strength of the reinforcing members.

[0018] In some embodiments, the number of reinforcing members is multiple, and the multiple reinforcing members are arranged in an array.

[0019] An array configuration refers to multiple reinforcing members spaced apart along a single direction, with no overlap between them. For example, reinforcing members connect different battery modules along a third direction, while the reinforcing members are spaced apart along a first direction, which can improve the structural strength of the connection between the battery modules.

[0020] In some embodiments, the two ends of the reinforcement are respectively connected to the brackets of different battery modules.

[0021] In this way, the reinforcing member can strengthen the two battery modules connected to the reinforcing member, as well as the individual battery modules located between the two battery modules connected to the reinforcing member, thereby improving the stability of the connection between these battery modules.

[0022] In some embodiments, the reinforcing member is a profile structure.

[0023] The production process of profile structures is relatively simple, which helps to shorten the development cycle and production time, and reduce production costs.

[0024] In some embodiments, the bracket located at the bottom layer is locked to the second housing.

[0025] This reduces the likelihood of the battery module moving relative to the second housing.

[0026] In some embodiments, the first lifting part is a lifting hole.

[0027] The first lifting section is designed as a lifting hole, which will not take up extra space inside the battery box, thus reducing the design size of the battery box and increasing the energy density of the battery device.

[0028] In some embodiments, the first lifting part is a lifting column.

[0029] With the help of lifting tools such as slings, the battery modules can be lifted.

[0030] In some embodiments, the first lifting part is a waist-shaped hole.

[0031] The lifting head of the lifting fixture is also waist-shaped. After the lifting head is inserted into the waist-shaped hole, the angle can be rotated to complete the limit, so that the lifting fixture can lift the bracket.

[0032] In some embodiments, the battery device includes at least two layers of the battery modules, each layer of the bracket comprising: A base frame, on which multiple battery cells are mounted, and the first lifting part is located on the side of the base frame; Side frame, the side frame being disposed of on the base frame; In two adjacent battery modules, the side frame of the lower battery module is connected to the side frame or the base frame of the upper battery module.

[0033] In this way, the side frame of the lower battery module can support the upper battery module.

[0034] In some embodiments, both the base frame and the side frame are profile structures.

[0035] The production process of profile structures is relatively simple, which helps to shorten the development cycle and production time, and reduce production costs.

[0036] In some embodiments, the individual battery cells in the multilayer battery module are electrically connected to form a battery cluster.

[0037] This simplifies the structure and maximizes space utilization.

[0038] In some embodiments, the individual battery cells in the single-layer battery module are electrically connected to form a battery cluster.

[0039] In this way, each layer of battery modules can be independently controlled and its operation and maintenance can be flexible.

[0040] In some embodiments, the individual battery cells in the single-layer battery module are electrically connected to multiple battery clusters.

[0041] This reduces the likelihood of downtime due to malfunctions, resulting in high safety performance.

[0042] In some embodiments, the first housing opens downwards along the direction of gravity, the second housing closes the opening, and the first housing is locked to the second housing.

[0043] The second enclosure is located below the first enclosure, and the second enclosure serves to support the first enclosure and the battery module.

[0044] In some embodiments, the first housing has a second lifting section.

[0045] With the help of hoisting equipment, the first box or the entire battery unit can be hoisted.

[0046] In some embodiments, the second housing has a third lifting section.

[0047] With the help of hoisting tools, the second housing or the entire battery unit can be hoisted.

[0048] In some embodiments, the first housing has a second lifting section, and the second housing has a third lifting section.

[0049] By cooperating with the second and third lifting sections and lifting tools respectively, the first and second boxes can be lifted separately.

[0050] This application also provides an energy storage device, including: The battery device described in any one of the embodiments of this application.

[0051] In some embodiments, the energy storage device further includes: A control device connected to the battery device for thermal and / or electrical management of the battery device.

[0052] In some embodiments, the second housing is a tray, and the control device is disposed on the tray.

[0053] The pallet has good load-bearing capacity and impact resistance, and is easy to maintain, repair, and replace later. The control device is located on one side of the first housing, which facilitates the management of the battery modules and improves the rationality of the space layout.

[0054] This application also provides an energy storage system, including: Energy storage converter; The energy storage device described in any one of the embodiments of this application is provided, wherein the energy storage converter is used to electrically connect the power generation device and the energy storage device.

[0055] This application also provides a charging network, including: Charging stations; The energy storage device or the energy storage system described in any one of the embodiments of this application is used to provide electrical energy to the charging pile.

[0056] The energy storage device, energy storage system, and charging network provided in this application embodiment have the same technical effects as the aforementioned battery device because they include the battery device described above. Attached Figure Description

[0057] Figure 1 This is a schematic diagram of the charging network structure in one embodiment of this application; Figure 2 This is a schematic diagram of the energy storage system and power generation device in one embodiment of this application; Figure 3 This is a schematic diagram of the energy storage device in one embodiment of this application; Figure 4 for Figure 3 The diagram shows a partial structural schematic of the energy storage device, in which the control device is hidden. Figure 5 This is a schematic diagram of the exploded structure of an energy storage device in one embodiment of this application; Figure 6 for Figure 5 A magnified structural diagram at point B; Figure 7 for Figure 5 A magnified structural diagram at point C; Figure 8 This is a schematic diagram of the bracket structure in one embodiment of this application; Figure 9 for Figure 8 A magnified structural diagram at point A; Figure 10 This is a schematic diagram of the lifting fixture in one embodiment of this application; Figure 11 for Figure 5 A magnified structural diagram at point D; Figure 12 for Figure 4 Top view.

[0058] Explanation of reference numerals in the attached figures 100. Battery assembly; 10. Battery housing; 11. First housing; 11a. Opening; 11b. First fastening hole; 111. Second lifting part; 112. First housing body; 12. Second housing; 12a. Second fastening hole; 121. Third lifting part; 122. Second housing body; 20. Battery module; 21. Bracket; 211. Base frame; 212. Side frame; 213. First lifting part; 22. Battery cell; 30. Reinforcing member; 40. Battery monitoring circuit; 200. Energy storage device; 210. Control device; 2000. Energy storage system; 300. Charging pile; 400. Energy storage converter; 3000. Power generation device; 1000. Charging network; X. First direction; Y. Second direction; Z. Third direction; 1. Lifting fixture; 110. Lifting head. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0061] It should be noted that in the embodiments of this application, the orientations or positional relationships such as "first direction," "second direction," and "third direction" are based on the orientations or positional relationships shown in the accompanying drawings. It should be understood that these orientational terms 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 orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0063] In the description of this specification, references to terms such as "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do 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 one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of those different embodiments or examples.

[0064] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0065] In related technologies, energy storage boxes and containers have limited load-bearing capacity for individual battery cells, which restricts the improvement of the integration of energy storage systems and results in low assembly efficiency.

[0066] In view of this, embodiments of this application provide a battery device that can improve the integration and assembly efficiency of the battery device. The battery device can be applied to energy storage devices or to electrical equipment, such as vehicles.

[0067] Please see Figures 1 to 3 This application also provides an energy storage device 200, which includes the battery device 100 of any embodiment of this application.

[0068] In some embodiments, please refer to Figure 3 The energy storage device 200 also includes a control device 210, which is connected to the battery device 100 to manage the battery device 100, such as thermal management, electrical management or energy conversion control.

[0069] As an example, control device 210 includes a water-cooled unit connected to battery device 100 for thermal management of battery device 100.

[0070] As an example, the control device 210 includes an electrical box connected to the battery device 100 for electrical management of the battery device 100. Further, the electrical box includes a power distribution module, a control module, and a busbar module. The power distribution module is used to control the on / off state of high and low voltage circuits. The control module is used to acquire voltage, temperature, and current. The busbar module connects the positive and negative terminals of the battery modules in the battery device 100 in parallel via a busbar, providing a unified total positive and total negative interface.

[0071] As an example, the control device 210 includes an energy storage converter connected to the battery device 100 to control the energy conversion of the battery device 100 and to control the charging and discharging of the battery device 100.

[0072] Please refer to Figure 1 and Figure 2 This application embodiment also provides a charging network 1000, which includes a charging pile 300 for charging electrical equipment.

[0073] The charging network 1000 may also include an energy storage device 200 according to any embodiment of the present application. The energy storage device 200 is electrically connected to the charging pile 300 and is used to provide power to the charging pile 300.

[0074] The charging pile 300 is electrically connected to the battery cells in the energy storage device 200 via cables. The battery cells can supply their stored electrical energy to the charging pile 300. The charging pile 300 has a connector that can connect to electrical equipment, thereby replenishing the equipment's power. The application of the energy storage device 200 in this charging network 1000 can effectively improve the safety of the charging network 1000 and also help to enhance the flexibility of the charging network 1000 during deployment.

[0075] In a charging network 1000, there can be one charging pile 300, and the energy storage device 200 provides power to the one charging pile 300; there can also be multiple charging piles 300, and the energy storage device 200 provides power to multiple charging piles 300.

[0076] As an example, such as Figure 1 As shown, the charging network 1000 includes an energy storage device 200 and two charging piles 300, with the energy storage device 200 providing power to the two charging piles 300.

[0077] As an example, the energy storage device 200 includes a battery device 100, which is electrically connected to the charging pile 300 so that the battery device 100 can provide power to the charging pile 300.

[0078] In some embodiments, the charging network 1000 includes a charging pile 300 and an energy storage system 2000 according to embodiments of this application, wherein the energy storage system 2000 is used to provide power to the charging pile 300.

[0079] In some embodiments, combined with Figure 4 and Figure 5The battery device 100 includes multiple battery cells 22. Each battery cell 22 can be a rechargeable battery, meaning it can be recharged after discharge to activate its active materials and continue to be used. The battery cells 22 can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc., but this application embodiment is not limited to these types.

[0080] Please see Figure 2 This application also provides an energy storage system 2000, which includes an energy storage converter 400 electrically connected to a generator 3000 to convert the electrical power provided by the generator 3000. The energy storage system 2000 may further include an energy storage device 200 according to any embodiment of this application. The energy storage device 200 is electrically connected to the energy storage converter 400, which in turn connects the generator 3000 and the energy storage device 200, converting the electrical energy provided by the generator 3000 and storing it in the energy storage device 200.

[0081] The power generation device 3000 generates electrical energy and stores it in the energy storage device 200 via a power conversion device. The power conversion device is connected between the power generation device 3000 and the energy storage device 200. The application of the energy storage device 200 in the energy storage system 2000 effectively improves the operational safety of the energy storage system 2000. In specific implementations, the power generation equipment can be solar panels, hydroelectric power generation equipment, thermal power generation equipment, etc. This application does not limit the specific type of power generation equipment.

[0082] As an example, such as Figure 2 As shown, the energy storage system 2000 includes an energy storage device 200 and an energy storage converter 400. The two power generation devices 3000 respectively transmit the generated electrical energy to the energy storage converter 400, and the energy storage converter 400 introduces the electrical energy into the energy storage device 200 for storage.

[0083] As an example, the energy storage device 200 can be an energy storage container, an energy storage cabinet, etc.

[0084] As an example, energy storage device 200 can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage power stations can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours. Wind power generation systems collect wind energy from wind turbines, convert it into electrical energy, and store it in energy storage device 200. Solar power generation systems can convert solar energy into electrical energy, store it in energy storage device 200, and supply it to users as needed. Mobile power systems can supply power to relevant electrical equipment in areas where the mains power supply cannot reach, such as remote mountainous areas and remote wilderness areas. Temporary power supply systems can provide power to users when there is insufficient power supply.

[0085] Please see Figures 3 to 9 The battery device 100 includes a battery housing 10 and a battery module 20. The battery housing 10 includes a first housing 11 and a second housing 12, which together form a receiving cavity. The battery module 20 includes a bracket 21 and a plurality of battery cells 22, which are disposed on the bracket 21. The bracket 21 has a first lifting part 213 for lifting the battery module 20 so that at least one battery module 20 is located in the receiving cavity.

[0086] It is understandable that a single-layer battery module 20 can have one layer of battery cells 22 or multiple layers of battery cells 22.

[0087] This application does not limit the single-layer battery module 20 to a single battery cluster. It can be configured such that a single battery cluster is located on the same layer of bracket 21, or that a single battery cluster is placed separately on multiple layers of bracket 21, or that multiple battery clusters are placed on a single layer of bracket 21. For example, in some embodiments, the battery cells 22 in the multi-layer battery module 20 are electrically connected as a battery cluster, which simplifies the structure and improves space utilization. In other embodiments, the battery cells 22 in the single-layer battery module 20 are electrically connected as a battery cluster, allowing each layer of battery module 20 to be independently controllable and flexible in operation and maintenance. Alternatively, in other embodiments, the battery cells 22 in the single-layer battery module 20 are electrically connected as multiple battery clusters, which reduces the possibility of downtime after a failure and improves safety performance. For example, the single-layer battery module 20 includes multiple layers of battery cells 22, with each layer of battery cells 22 electrically connected as a battery cluster.

[0088] As an example, the battery device also includes a battery monitoring circuit 40 (CSC), which is used to collect information such as the voltage and temperature of the battery cells 22. For example, Figure 5 As shown, each battery module 20 is equipped with a battery monitoring circuit 40.

[0089] The battery housing 10 is used to carry the battery module 20 and protect it. The specific forms of the first housing 11 and the second housing 12 are not limited and can be configured in various ways according to requirements. For example, the first housing 11 forms the main part of the receiving cavity, and the second housing 12 is plate-shaped, covering the first housing 11. The second housing 12 can be, for example, a tray, which has good load-bearing capacity and impact resistance, and facilitates later maintenance such as inspection and replacement. Alternatively, both the first housing 11 and the second housing 12 can be semi-box-shaped, each forming a portion of the receiving cavity.

[0090] In some embodiments, please refer to Figure 3 and Figure 4 The second housing 12 is a tray, and the control device 210 is mounted on the tray. The control device 210 is located on one side of the first housing 11, which facilitates the management of the battery module 20 and improves the rationality of the space layout. Furthermore, the control device 210 can be independently assembled and disassembled from the first housing 11, which simplifies the structure and facilitates later maintenance.

[0091] For example, please refer to Figure 3 and Figure 4 The first box 11 has an opening 11a facing downwards along the direction of gravity, and the second box 12 closes the opening 11a.

[0092] The second housing 12 is located below the first housing 11, and the second housing 12 serves to support the first housing 11 and the battery module 20.

[0093] Furthermore, the first housing 11 is locked to the second housing 12, thereby securing the first housing 11 and the second housing 12 together. For example, the battery housing 10 includes a first fastener, by which the first housing 11 is locked to the second housing 12; the first fastener may be, for example, a bolt. As an example, the first housing 11 extends horizontally from the opening 11a to form a connecting portion, and the first fastener locks the connecting portion to the second housing 12.

[0094] For example, please refer to Figures 5 to 7 The first housing 11 has a first fastening hole 11b, and the second housing 12 has a second fastening hole 12a. A first fastener passes through the first fastening hole 11b and the second fastening hole 12a, thereby fastening the first housing 11 and the second housing 12 together. Furthermore, the connecting portion has a first fastening hole 11b.

[0095] In some embodiments, the bracket 21 is locked to the second housing 12. This reduces the likelihood of the battery module 20 moving relative to the second housing 12.

[0096] As an example, the battery housing 10 includes a second fastener, and the bracket 21 of the bottom battery module 20 is locked to the second housing 12 by the second fastener.

[0097] In other embodiments, not shown, the bracket 21 of each battery module 20 is secured to the second housing 12 by a second fastener. In this embodiment, the second housing 12 is semi-housing in shape to securely connect to the bracket of each battery module 20.

[0098] As an example, the battery cells 22 in the same layer of the battery module 20 are connected as a whole, for example by adhesive bonding, or by binding with straps.

[0099] When the battery module 20 has multiple layers of battery cells 22, for example, battery cells 22 on the same layer in the battery module 20 are connected as a whole to form a battery cell layer, for example, by adhesive bonding or by binding with straps. Further, the battery cell layers are stacked to form a whole.

[0100] The number of stacking layers of the battery modules 20 can be set according to actual needs. The number of layers of individual battery cells 22 in each battery module 20 is unlimited; they can all be the same, all different, or some battery modules 20 may have the same number of layers for individual battery cells 22, while others may have different numbers of layers, etc. As an example, combined with... Figure 5 In some embodiments (not shown), the number of layers of battery cells 22 in different battery modules 20 is the same.

[0101] In some embodiments, in each battery module 20, the number of battery cells 22 arranged in the bracket 21 is 1 to 12 layers, limiting the number of layers to less than 12 layers to prevent the stacking number of battery cells 22 in the battery module 20 from being too large and the bracket 21 from being overloaded. Figure 5 As shown, in each battery module 20, the battery cells 22 are arranged in one layer on the bracket 21.

[0102] The number of battery modules 20 in the receiving cavity is not limited; it can be one, two, or more. In some embodiments, the number of battery module layers 20 is 1 to 12, with the number limited to below 12 layers to prevent excessive stacking of battery module layers and excessive load on the second housing 12. Figure 5 As shown, the battery module 20 in the cavity has eight layers.

[0103] As an example, in each battery module 20, the number of battery cells 22 disposed on the bracket 21 is one layer, and the number of battery modules 20 in the receiving cavity is eight layers.

[0104] As an example, the battery cell 22 includes a housing and an electrode assembly. The housing has multiple housing walls that enclose a receiving space within the housing, and the electrode assembly is disposed within the receiving space. End faces are formed in the multiple housing walls, which are the surfaces of the housing walls where electrode posts or pressure relief valves are disposed. For example, two housing walls may be arranged opposite each other to form two end faces.

[0105] For example, please refer to Figure 6 The battery cell 22 is a prismatic battery cell 22, with a shape approximately similar to a cuboid. In some embodiments not shown, the battery cell 22 is a cylindrical battery cell 22, with a shape approximately similar to a cylinder.

[0106] For example, please refer to Figure 6 The battery cell 22 has six shell walls. Two of the shell walls are arranged opposite each other along a first direction X to form two large surfaces; another two shell walls are arranged opposite each other along a second direction Y to form two side surfaces; and another two shell walls are arranged opposite each other along a third direction Z to form two end faces of the battery cell 22. The first direction X, the second direction Y, and the third direction Z are all perpendicular to each other, and the third direction Z is the same as the height direction of the battery cell 22.

[0107] As an example, the battery cell 22 includes two terminals, which are disposed on the same end face of the battery cell 22. Further, as... Figure 6 As shown, the end face with the pole is facing upwards.

[0108] In some embodiments not shown, the two terminals are respectively disposed on the end faces of different sides of the battery cell 22.

[0109] As an example, at least two battery cells 22 are arranged along a first direction X to form a battery row, and at least two battery rows are arranged along a second direction Y to form a battery pack. The battery pack consists of battery cells 22 in the same layer of the battery module 20.

[0110] The bracket 21 and the battery cell 22 together form a battery module 20. The specific form of the bracket 21 can be configured in various ways to meet specific requirements. For an example, please refer to [reference needed]. Figure 8 The bracket 21 includes a base frame 211, on which multiple battery cells 22 are disposed. The base frame 211 provides support for the battery cells 22 in its corresponding layer.

[0111] As an example, the base frame 211 is a profile structure. The manufacturing process of profile structures is relatively simple, which helps to shorten the development cycle and production time, and reduce production costs.

[0112] In some embodiments, the individual battery modules 20 are stacked along the height direction, and the bracket 21 in the lower battery module 20 can support all the battery modules 20 located above it.

[0113] For example, please refer to Figure 8 The bracket 21 includes a side frame 212, which is disposed on the base frame 211. The side frame 212 can limit the position of the battery module 20 in the horizontal direction.

[0114] As an example, side frame 212 is a profile structure. The manufacturing process of profile structures is relatively simple, which helps to shorten the development cycle and production time, and reduce production costs.

[0115] As an example, both the base frame 211 and the side frame 212 are profile structures.

[0116] Furthermore, in the battery cell 22 assembly, the side frame 212 of the lower battery module 20 is connected to the side frame 212 or the base frame 211 of the upper battery module 20, and the side frame 212 can support the weight of the upper battery module 20. In this way, the battery cells 22 in each layer of bracket 21 do not need to support the upper battery module 20, which can reduce the design requirements for the load-bearing capacity of the battery cells 22, reduce production costs, and extend service life.

[0117] In some embodiments, the battery device 100 includes at least two layers of battery modules 20, each layer's support frame 21 including a base frame 211 and a side frame 212. Multiple battery cells 22 are disposed on the base frame 211, and the side frames 212 are disposed on the base frame 211. In adjacent layers of battery modules 20, the side frame 212 of the lower battery module 20 is connected to the side frame 212 of the upper battery module 20. Thus, the side frame 212 of the lower battery module 20 can support the upper battery module 20. In other embodiments (not shown), the side frame 212 of the lower battery module 20 is connected to the base frame 211 of the upper battery module 20.

[0118] Further, please refer to Figure 8 The first lifting part 213 is located on the side of the base frame 211. The first lifting part 213 is located on the side to facilitate the cooperation between the first lifting part 213 and the lifting tool, thereby reducing the possibility of the lifting tool colliding with the battery module 20 during lifting and causing structural damage to the battery module 20.

[0119] The first lifting unit 213 can cooperate with the lifting fixture to enable the lifting fixture to lift the battery module 20, realizing operations such as stacking or transferring the battery module 20. The form of the first lifting unit 213 is not limited and can be set according to the lifting requirements and the lifting method of the lifting fixture. For example, please refer to... Figure 8 and Figure 9 The first lifting part 213 is a lifting hole. The first lifting part 213 is a lifting hole, which will not occupy additional space in the battery box 10, which helps to reduce the design size of the battery box 10 and improve the energy density of the battery device 100.

[0120] The shape of the lifting hole is not limited; in some embodiments, such as... Figure 9 As shown, the first lifting part 213 has an oblong opening, which can be used with lifting fixtures for lifting operations. For example, combined with... Figure 10 The lifting head 110 of the lifting fixture 1 is also waist-shaped. The lifting head 110 extends into the lifting hole, and the angle can be rotated to complete the limit, so that the lifting fixture 1 can lift the bracket 21.

[0121] In other embodiments not shown, the first lifting part 213 is a lifting column. Further, the lifting column includes a cylinder and a lifting cap, the lifting cap being disposed at the end of the cylinder. The lifting cap can limit the lifting tools that cooperate with the lifting column, reducing the possibility of the lifting tools detaching from the lifting column during lifting and improving lifting stability. For example, the lifting tool can be a sling.

[0122] The battery device 100 provided in this embodiment of the application integrates a bracket 21 and battery cells 22 to form a battery module 20. The bracket 21 supports the battery cells 22 and has a strong load-bearing capacity. Therefore, a single battery module 20 can accommodate more battery cells 22, significantly improving the integration and energy density of the battery device 100. Furthermore, by using the bracket 21 to support the battery cells 22, the assembly efficiency is improved. A first lifting part 213 is provided in the bracket 21, enabling each bracket 21 to have an independent lifting design, allowing for independent transportation, convenient installation and maintenance, and improved production assembly efficiency. Thus, the battery device 100 can meet the high integration requirements of the energy storage system 2000, with high overall structural strength, low cost, simple manufacturing process, and convenient maintenance.

[0123] In some embodiments, please refer to Figure 11 and Figure 12 The first housing 11 has a second lifting section 111. As an example, the first housing 11 includes a first housing body 112 and a second lifting section 111. The second lifting section 111 is located on top of the first housing body 112 and, in conjunction with the lifting fixture 1, can achieve the lifting of the first housing 11 or the entire battery device 100. Further, as... Figure 12 As shown, the first box 11 has a first box body 112 and four second lifting parts 111, which are respectively located at the four corners of the top surface of the first box body 112.

[0124] For example, please refer to Figure 11 The second hoisting part 111 has an oblong hole, combined with Figure 10 The lifting head 110 of the lifting fixture 1 is also oblong. After the lifting head 110 of the lifting fixture 1 is inserted into the oblong hole, it can rotate to achieve a limit position. For example, the second lifting part 111 can be the same as the standard corner piece of a conventional container, which improves the convenience of purchasing accessories.

[0125] In some embodiments not shown, the second lifting section 111 is a lifting column. For example, the lifting column is at least partially cylindrical.

[0126] In some embodiments, please refer to Figure 12 The second housing 12 has a third lifting section 121. As an example, the second housing 12 includes a second housing body 122 and a third lifting section 121. The third lifting section 121 is located on both sides of the second housing body 122 along the first direction X. With the help of lifting tools, the second housing 12 or the entire battery device 100 can be lifted. The lifting tools are, for example, slings.

[0127] As an example, the third lifting section 121 is a lifting column. For instance, the lifting column is at least partially cylindrical. Further, please refer to... Figure 7 and Figure 12 The third lifting part 121 includes a cylinder 1211 and a lifting cap 1212. The lifting cap 1212 is disposed at the end of the cylinder 1211. The lifting cap 1212 can limit the lifting tool, reduce the possibility of the lifting tool detaching from the third lifting part 121 during the lifting process, and improve the lifting stability.

[0128] In other embodiments not shown, the third lifting part 121 is a lifting hole. For example, the third lifting part 121 is an oblong hole.

[0129] In some embodiments, please refer to Figure 11 The first housing 11 has a second lifting part 111, and the second housing 12 has a third lifting part 121. By cooperating with lifting tools, the second lifting part 111 and the third lifting part 121 can respectively achieve the lifting of the first housing 11 and the second housing 12.

[0130] In some embodiments, please refer to Figure 5 The battery device 100 also includes a reinforcing member 30, which is used to strengthen the structure of the battery module 20 and improve the stability of the battery module 20 installed in the first housing 11.

[0131] As an example, the battery module 20 has multiple layers, and the reinforcing member 30 is connected to the bracket 21 of each different battery module 20. In this way, the reinforcing member 30 can strengthen the multi-layer battery module 20, making the connection between the multi-layer battery module 20 more stable.

[0132] As an example, the reinforcing member 30 has a first mounting hole, the bracket 21 has a second mounting hole, and the battery housing 10 includes a third fastener that passes through the first and second mounting holes to securely connect the reinforcing member 30 to the bracket 21. The third fastener may be, for example, a bolt.

[0133] In some embodiments, there are multiple reinforcing members 30, which are arranged in a crisscross pattern. For example, two reinforcing members 30 are arranged in a crisscross pattern, which can reduce costs, improve assembly and disassembly efficiency, and help reduce the weight of the battery device 100. The crisscrossing arrangement of the reinforcing members 30 can be an extension line crossing each other, with no contact between the reinforcing members 30. For example, four reinforcing members 30 are arranged in a crisscross pattern, forming an X shape.

[0134] As an example, multiple reinforcing members 30 are arranged in a grid pattern. The grid pattern means that two sets of reinforcing members 30 are spaced apart in two directions and the two directions intersect, so that multiple reinforcing members 30 intersect to form a stable frame. The reinforcing members 30 support each other, which can improve the structural strength of the reinforcing members 30.

[0135] As an example, multiple reinforcing members 30 are arranged in an array, meaning that the multiple reinforcing members 30 are spaced apart along a single direction and there is no intersection between the reinforcing members 30. For example, the reinforcing members 30 connect different battery modules 20 along a third direction Z, and the reinforcing members 30 are spaced apart along a first direction X, which can improve the structural strength of the connection between the battery modules 20.

[0136] Furthermore, the two sets of reinforcing members 30 are respectively disposed on both sides of the battery module 20 along the second direction Y. For example... Figure 5 As shown, two reinforcing members 30 are arranged as a group, cross-arranged on one side of each layer of battery module 20; another two reinforcing members 30 are arranged as another group, cross-arranged on the other side of each layer of battery module 20.

[0137] In some embodiments, please refer to Figure 5 The two ends of the reinforcing member 30 are respectively connected to the brackets 21 of different battery modules 20. In this way, the reinforcing member 30 can strengthen the two battery modules 20 connected to the reinforcing member 30, as well as the individual battery modules 20 located between the two battery modules 20 connected to the reinforcing member 30, thereby improving the stability of the connection of these battery modules 20.

[0138] In some embodiments, the reinforcing member 30 is a profile structure. The manufacturing process of profile structures is relatively simple, which helps to shorten the development cycle and production time, and reduce production costs.

[0139] In some embodiments, please refer to Figures 1 to 12The battery device 100 includes a battery housing 10 and battery modules 20. The battery housing 10 includes a first housing 11 and a second housing 12, the second housing 12 being a tray. The first housing 11 and the second housing 12 form a receiving cavity. The first housing 11 has an opening 11a facing downwards along the direction of gravity, and the second housing 12 closes the opening 11a. The battery modules 20 in the receiving cavity have eight layers. Each battery module 20 includes a bracket 21 and multiple battery cells 22. The multiple battery cells 22 are disposed on the bracket 21, and the bottom bracket 21 is locked to the second housing 12. In each battery module 20, the battery cells 22 are disposed on the bracket 21 in one layer. Each bracket 21 includes a base frame 211 and side frames 212. Multiple battery cells 22 are mounted on the base frame 211, and the side frames 212 are mounted on the base frame 211. In two adjacent battery module layers 20, the side frame 212 of the lower battery module 20 is connected to the side frame 212 of the upper battery module 20. The battery device 100 also includes reinforcing members 30, with multiple reinforcing members 30 arranged crosswise. The base frame 211, side frames 212, and reinforcing members 30 are all profile structures. The bracket 21 has a first lifting part 213, which is an oblong hole. The first lifting part 213 is used to lift the battery module 20 so that at least one battery module 20 is located in the receiving cavity. The first housing 11 has a second lifting part 111, which is the same as the standard corner bracket of a conventional container. The second housing 12 has a third lifting part 121, which includes a cylinder 1211 and a lifting cap 1212. The lifting cap 1212 is disposed at the end of the cylinder 1211 and can limit the lifting tool.

[0140] In this embodiment, the bracket 21 and the battery cells 22 form a battery module 20 as a whole. The bracket 21 supports the battery cells 22 and has a strong load-bearing capacity. Thus, a single battery module 20 can accommodate more battery cells 22, significantly improving the integration and energy density of the battery device 100. Furthermore, by using the bracket 21 to support the battery cells 22, the assembly efficiency is improved. A first lifting part 213 is provided on the bracket 21, enabling each bracket 21 to have an independent lifting design, allowing for independent transportation, convenient installation and maintenance, and improved production assembly efficiency. In this way, the battery device 100 can meet the high integration requirements of the energy storage system 2000, with high overall structural strength, low cost, simple process, and convenient maintenance. The second housing 12 is a pallet, which has good load-bearing capacity and impact resistance, facilitating later maintenance such as inspection and replacement. The second housing 12 is located below the first housing 11, and the second housing 12 supports both the first housing 11 and the battery module 20. The bottom bracket 21 is locked to the second housing 12, reducing the possibility of the battery module 20 moving relative to the second housing 12. The side frame 212 of the lower battery module 20 provides support for the upper battery module 20. The first lifting part 213 has an oblong hole, which can be used with lifting tools for lifting operations. The lifting head 110 of the lifting tool 1 is also oblong. The lifting head 110 extends into the lifting hole, and the angle can be rotated to complete the limit, allowing the lifting tool 1 to lift the bracket 21. The second lifting part 111 is the same as the standard corner fittings of conventional containers, improving the convenience of purchasing accessories. The lifting cap 1212 of the third lifting part 121 can limit the lifting tools, reducing the possibility of the lifting tools detaching from the third lifting part 121 during the lifting process and improving the lifting stability. The multiple reinforcing members 30 are arranged in a cross pattern, which can reduce costs, improve disassembly and assembly efficiency, and help reduce the weight of the battery device 100. The production process of profile structures is relatively simple, which helps to shorten the development cycle and production time, and reduce production costs.

[0141] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A battery device, characterized in that, include: The battery housing includes a first housing and a second housing, the first housing and the second housing forming a receiving cavity; A battery module includes a bracket and multiple battery cells, wherein the multiple battery cells are disposed on the bracket; The bracket has a first lifting part for lifting the battery module so that at least one of the battery modules is located in the receiving cavity.

2. The battery device according to claim 1, characterized in that, In each of the battery modules, the number of battery cells arranged in the bracket is 1 to 12.

3. The battery device according to claim 1, characterized in that, The battery module has 1 to 12 layers.

4. The battery device according to claim 3, characterized in that, The number of layers in the individual battery cells of different battery modules may be the same or different.

5. The battery device according to claim 1, characterized in that, The battery module has multiple layers, and the battery device further includes: The reinforcing members are connected to the brackets of the different battery modules respectively.

6. The battery device according to claim 5, characterized in that, The number of reinforcing members is multiple, and the multiple reinforcing members are arranged in a cross shape, a grid shape, or an array shape.

7. The battery device according to claim 5, characterized in that, The two ends of the reinforcing member are respectively connected to the brackets of different battery modules.

8. The battery device according to claim 5, characterized in that, The reinforcing member is a profile structure.

9. The battery device according to claim 1, characterized in that, The bracket located at the bottom layer is locked to the second housing.

10. The battery device according to any one of claims 1 to 9, characterized in that, The first hoisting part is a hoisting hole or a hoisting column.

11. The battery device according to claim 10, characterized in that, The first hoisting part has a waist-shaped hole.

12. The battery device according to any one of claims 1 to 9, characterized in that, The battery device includes at least two layers of the battery modules, and each layer of the bracket includes: A base frame, on which multiple battery cells are mounted, and the first lifting part is located on the side of the base frame; Side frame, the side frame being disposed of on the base frame; In two adjacent battery modules, the side frame of the lower battery module is connected to the side frame or the base frame of the upper battery module.

13. The battery device according to claim 12, characterized in that, Both the base frame and the side frame are profile structures.

14. The battery device according to claim 2, characterized in that, The individual battery cells in the multi-layer battery module are electrically connected to form a battery cluster; or, The individual battery cells in the single-layer battery module are electrically connected to form a battery cluster or multiple battery clusters.

15. The battery device according to any one of claims 1 to 9, characterized in that, The first box has an opening facing downwards along the direction of gravity, and the second box closes the opening. The first box is locked to the second box.

16. The battery device according to any one of claims 1 to 9, characterized in that, The first housing has a second lifting section; and / or, the second housing has a third lifting section.

17. An energy storage device, characterized in that, include: The battery device according to any one of claims 1 to 16.

18. The energy storage device according to claim 17, characterized in that, The energy storage device also includes: A control device connected to the battery device for thermal and / or electrical management of the battery device.

19. The energy storage device according to claim 18, characterized in that, The second container is a tray, and the control device is located on the tray.

20. An energy storage system, characterized in that, include: Energy storage converter; The energy storage device according to any one of claims 17 to 19, wherein the energy storage converter is used to electrically connect the power generation device and the energy storage device.

21. A charging network, characterized in that, include: Charging stations; The energy storage device according to any one of claims 17 to 19 or the energy storage system according to claim 20, wherein the energy storage device or the energy storage system is used to provide electrical energy to the charging pile.

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