Battery arrangement and vessel

Abstract

The application discloses a battery device and a ship, and belongs to the technical field of battery devices. The battery device comprises two or more first frames which can be used as keels or girder materials of the ship, and the two or more first frames are arranged in a spaced manner along a first direction; two or more second frames which can be used as ribs of the ship, and the two or more second frames are arranged in a spaced manner along a second direction; the first frames and the second frames are arranged alternately to form a plurality of containing spaces, and at least two containing spaces are separated by the first frames or the second frames; a cover body which is connected with the first frames and the second frames and is used for shielding an opening of at least one containing space; and a plurality of battery cells which are arranged in the containing spaces. The battery device can reduce the self weight of the ship body and the construction cost, improve the cabin capacity utilization and the space compactness, and improve the anti-rolling, anti-impact and anti-vibration capabilities of the battery device. In addition, the gravity center of the battery device is lowered, so that the stability and the wind and wave resistance of the ship are improved.

Description

Technical Field

[0001] This application belongs to the field of battery device technology, specifically relating to a battery device and a ship. Background Technology

[0002] In related technologies, battery devices are separately arranged in battery compartments / decks, occupying a large amount of space and resulting in low space utilization. In addition, battery compartments require additional reinforcement structures, which increases the weight and cost of the hull. Utility Model Content

[0003] This application aims to provide a battery device and a ship that solves the problems of battery devices occupying a large amount of cabin space, having low space utilization, and requiring additional reinforcing structures for the battery compartment, which increases the weight and cost of the ship.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application propose a battery device for use in a ship. The battery device includes: two or more first frames, which can be used as keels or girders of the ship, and the two or more first frames are arranged at intervals along a first direction; two or more second frames, which can be used as ribs of the ship, and the two or more second frames are arranged at intervals along a second direction, the first direction being different from the second direction, and the first frames and second frames are staggered to form multiple receiving spaces, at least two receiving spaces being separated by the first frames or the second frames; a cover connected to the first frames and the second frames, used to cover the opening of at least one receiving space; and multiple battery cells disposed within the receiving spaces.

[0006] In related technologies, dedicated independent battery compartments are set up on ships to house battery devices. Alternatively, battery devices are centrally located on the ship's deck area. This reduces the ship's compartment capacity, and additional structural reinforcement is required for the battery compartments or decks to protect the battery devices, increasing the structural weight and cost of the hull. It also easily leads to a higher center of gravity and insufficient vibration resistance, impact resistance, and anti-rolling performance of the battery devices themselves due to their separation from the hull structure.

[0007] In the technical solution of this application, the battery device is provided with a first frame and a second frame. The first frame can be used as the keel or girder of a ship, and the second frame can be used as the ribs of a ship. Two or more first frames and two or more second frames are staggered to form a space for accommodating the battery cells. This achieves integrated design of the battery device with the ribs and keel or girder used in the ship. On the one hand, the staggered arrangement of the first and second frames forms a staggered structure of keel or girder and ribs, which can meet the structural strength requirements of the ship. On the other hand, by fully utilizing the space enclosed by the first and second frames to accommodate the battery cells, the ship's battery compartment or deck area used for centralized battery device placement can be saved. This eliminates the redundant bulkheads of traditional battery compartments, reduces structural overlap, lowers the ship's weight and construction costs, and improves cargo space utilization and compactness.

[0008] Understandably, the first and second frames, which are used as keels, trusses, or ribs, have high structural strength and can also meet the reliability requirements for protecting the battery cells. Therefore, they save on the reinforcement structures required for battery compartments or decks based on the protection requirements of battery devices, thus achieving weight reduction and cost reduction for ships.

[0009] Furthermore, by incorporating the first frame, used as the keel or girder, and the second frame, used as the ribs, into the battery pack's housing, the battery pack is more tightly integrated with the ship's hull structure. When the ship encounters external loads, these loads are distributed throughout the entire structure via the framework formed by the first and second frames, reducing the risk of stress concentration and improving the battery pack's resistance to heeling, impact, and vibration. It is understood that the first and second frames, used as the keel, girder, or ribs, are generally located on the inner side of the ship's bottom. This allows the battery cells to also act as counterweights for the keel, lowering the ship's center of gravity. The battery pack can also be positioned at the bottom of the ship, corresponding to the keel, girder, or ribs, further lowering the center of gravity and enhancing the ship's stability and seaworthiness.

[0010] In some technical solutions, the battery device may optionally include: a base plate connected to the first frame and the second frame, the base plate and the cover being spaced apart and correspondingly arranged, and the accommodating space being located between the base plate and the cover.

[0011] In the above technical solution, by setting a base plate, a flat and continuous bearing surface can be constructed at the bottom of the housing space, reducing the risk of the battery cells being suspended, tilted, or subjected to uneven stress due to the curved or uneven surface of the ship's bottom. This allows the battery cells to remain stable within each housing space. Simultaneously, the base plate, as the bottom enclosure of the battery device's casing, together with the first frame, second frame, and cover, forms a complete box structure, making the housing space an independent compartment that is sealed both above and below. This further enhances the waterproof and dustproof performance of the battery device, improving its safety.

[0012] In some technical solutions, optionally, at least one reinforcing rib is provided on the first frame.

[0013] In the above technical solution, by setting reinforcing ribs on the first frame, the bending stiffness of the first frame can be effectively increased, and the structural strength lost due to the setting of the accommodating space can be compensated. This allows the first frame to meet the load-bearing requirements of the hull while taking into account the side wall function of the battery device, thereby improving the safety of the battery device.

[0014] In some technical solutions, optionally, the reinforcing rib is disposed on the surface of the first frame on the side opposite to the receiving space; and / or the reinforcing rib includes at least one first rib and a plurality of second ribs, the length direction of the first rib is disposed along the second direction, the plurality of second ribs are arranged at intervals along the second direction, and the plurality of second ribs are respectively staggered with the first rib.

[0015] In the above technical solution, the length direction of the first rib is arranged along the second direction, so that when the first frame acts as a keel, it can resist the bending load of the keel along the first direction, thereby improving the bending resistance of the structure. However, when the first rib is subjected to compression, it is prone to lateral buckling due to its large length and small cross-section. Therefore, in the above embodiment, the first frame is also provided with a plurality of second ribs, which are arranged at intervals along the second direction and interspersed with the first ribs. In this way, it is equivalent to setting multiple intermediate support points on the first rib, thereby dividing the first rib into multiple segments, shortening the buckling length of the first rib, and thus improving the strength of the first rib and even the strength of the first frame.

[0016] In some technical solutions, the battery device may optionally include: one or more fireproof partitions disposed within the housing space and dividing the housing space into two or more compartments, each compartment housing one or more battery cells.

[0017] In the above technical solution, the containment space is divided into multiple independent compartments by fireproof partitions. When a cell in any compartment experiences thermal runaway, the flame and high-temperature gas can be confined to the corresponding compartment to reduce the risk of spreading to adjacent compartments. This reduces the risk of chain propagation of thermal runaway and improves the fire resistance and safety performance of the battery device.

[0018] In some technical solutions, optionally, the battery device has multiple module units, each module unit containing one or more battery cells, fireproof partitions are located between adjacent module units to separate adjacent module units; and / or the receiving space is divided by the fireproof partitions into two or more compartments arranged along a first direction; and / or the surface of the first frame or the second frame facing the receiving space is provided with a slot, and the end of the fireproof partition extends into the slot.

[0019] In the above technical solution, by setting fireproof partitions between each module unit, the fireproof partitions can separate adjacent module units. When any module unit experiences thermal runaway, the fireproof partitions can prevent flames, high-temperature gases and toxic fumes from spreading to adjacent module units, thereby controlling thermal runaway within a single module unit, reducing the impact on other module units, and thus improving the safety of the entire battery device.

[0020] The keel extends longitudinally along the hull, causing the storage space to also extend along the first direction and be relatively long. Based on this, fireproof bulkheads divide the storage space into multiple compartments arranged along the first direction, which can adapt to the structural characteristics of the storage space extending along the first direction, thereby making full use of the length of the storage space.

[0021] Meanwhile, the fireproof partition extends into the slot through an insert-fitting method. The side wall of the slot can limit and fix the fireproof partition, thus achieving a snap-fit ​​fixation. On the one hand, using the slot as an assembly reference can reduce random errors during the assembly process, thereby improving the array accuracy of multiple compartments along the first direction. On the other hand, when assembling the fireproof partition, only an inserting action is required, thus improving the ease of installation of the fireproof partition.

[0022] In some technical solutions, the battery device may optionally include: a cold plate disposed within the housing space and thermally connected to the battery cell; the cold plate is provided with an inlet and an outlet; the battery device may also include a first interface for accessing the thermal management medium and a second interface for discharging the thermal management medium; the first interface is connected to the inlet and the second interface is connected to the outlet.

[0023] In the above technical solution, by setting a cold plate, the medium flows into the cold plate through the first interface and flows out through the outlet and the second interface, thereby carrying away the heat generated by the battery cell and controlling the operating temperature of the battery cell within a safe range.

[0024] In some technical solutions, optionally, when the battery device includes a base plate, the cold plate is connected to the first frame, the second frame, or the base plate via a plug-in locking structure; and / or when the battery device includes a base plate, the first interface and the second interface are disposed on the base plate; and / or the cold plate is provided with a serpentine flow channel or a bent flow channel, the two ends of which are respectively connected to the inlet and the outlet.

[0025] In the above technical solution, the cold plate and the first frame, the second frame or the base plate are pre-positioned by opposite insertion. Then, the locking element applies a fastening torque to realize the connection between the cold plate and the first frame, the second frame or the base plate, thereby improving the assembly success rate.

[0026] The first and second interfaces are located on the base plate of the battery unit. This arrangement not only optimizes the spatial layout of the battery unit and reduces the encroachment of lateral pipes on the external space of the battery unit, but also shortens the piping structure when introducing external liquids, thereby reducing the weight and assembly complexity of the battery unit.

[0027] The cold plate has a serpentine or meandering flow channel, with its two ends connected to the inlet and outlet, respectively. This design, through a tortuous flow path, increases the residence time of the medium within the cold plate, thereby improving heat dissipation efficiency.

[0028] In some technical solutions, the battery device may optionally include: one or more sensors disposed within the housing space, wherein the one or more sensors are selected from at least one of temperature sensors, smoke sensors, and combustible gas sensors; and / or an explosion-proof valve disposed on the cover; and / or a battery management system acquisition board disposed within the housing space and electrically connected to the battery cell; and / or a fire extinguishing medium interface disposed on the cover; and / or an inspection port and / or an electrical interface disposed on the cover.

[0029] In the above technical solution, by setting up sensors to monitor the internal environmental parameters of the containment space in real time, safety monitoring is placed at the early stage of the fault occurrence, and fault early warning is realized, thereby effectively solving the problems of insufficient detection frequency and maintenance difficulties caused by physical location limitations.

[0030] The battery unit also includes an explosion-proof valve, which is mounted on the cover. This design allows the explosion-proof valve to automatically release pressure when the air pressure within the containment space exceeds a preset threshold, thereby reducing the risk of the battery unit exploding.

[0031] A battery management system (BMS) acquisition board is a circuit board in a BMS used to directly acquire operating parameters such as cell voltage and temperature. It is electrically connected to each cell via sampling harnesses and transmits the acquired signals to the main control unit of the BMS. The BMS acquisition board can also perform cell balancing control functions.

[0032] The fire extinguishing medium interface can inject fire extinguishing medium into the containment space when a fire alarm signal is received, so as to quickly suppress thermal runaway cells or modules, thereby improving the safety performance of the battery device.

[0033] The access port, serving as an openable window within the housing, is configured to allow maintenance personnel or testing tools to intervene when necessary for the inspection and maintenance of the battery cells, cold plates, or battery management system acquisition board. The electrical interface serves as a cable routing channel, facilitating electrical connections between the battery pack and external devices. By integrating these interfaces onto the cover, the impact of openings on the structural strength of the battery pack can be reduced.

[0034] Secondly, this application provides a vessel, comprising: a hull; a battery device as provided in any of the above technical solutions, disposed on the hull; at least one first frame extending longitudinally along the hull to serve as the keel or girder of the hull; and at least one second frame extending transversely along the hull to serve as the ribs of the hull. Thus, the vessel possesses all the beneficial effects of any of the above technical solutions, which will not be elaborated further here.

[0035] In some technical solutions, optionally, the hull has an outer plating located on the side of the hull and a bulkhead located above the battery device; the distance between the first frame closest to the outer plating among two or more first frames and the outer plating is greater than or equal to 500 mm; and / or the distance between the cover and the bulkhead is greater than or equal to 150 mm.

[0036] This configuration meets the CCS (China Classification Society) regulations, thereby improving the safety of the battery device in a marine environment.

[0037] In some technical solutions, the vessel may optionally include multiple battery units arranged side by side along the hull.

[0038] This configuration allows for a more even weight distribution of the battery pack on the ship, reducing the risk of heeling.

[0039] In some technical solutions, optionally, when the battery device includes a cold plate, a first interface and a second interface, the first interface is connected to the outside of the hull for introducing external liquid, which serves as a thermal management medium and flows through the cold plate, and the second interface is connected to the outside of the hull for discharging the external liquid.

[0040] The external liquid can be seawater, river water, lake water, etc. Using an external liquid as the heat management medium eliminates the need for secondary heat exchange in traditional heat management systems, thus simplifying the structure. Furthermore, external liquids are natural resources, eliminating the need to purchase or replenish coolant, thereby helping to reduce costs.

[0041] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0042] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0043] Figure 1 This is a structural schematic diagram of a ship according to one or more embodiments of this application;

[0044] Figure 2 This is a schematic diagram of the structure of a battery device according to one or more embodiments of this application;

[0045] Figure 3 This is a three-dimensional structural diagram of a battery cell according to one or more embodiments of this application;

[0046] Figure 4 This is a three-dimensional exploded structural diagram of a battery cell according to one or more embodiments of this application;

[0047] Figure 5 This is a schematic diagram of a ship according to one or more embodiments of this application.

[0048] Figure label:

[0049] 100 Battery device; 101 First interface; 102 Second interface; 103 Sensor; 104 Explosion-proof valve; 105 Battery management system acquisition board; 106 Fire extinguishing medium interface; 107 Inspection port; 108 Electrical interface; 109 Slot; 110 First frame; 111 Reinforcing rib; 1111 First rib; 1112 Second rib; 120 Second frame; 130 Cover; 140 Battery cell; 141 Outer shell; 1411 End cap; 1412 Housing; 142 Electrode assembly; 1421 Electrode tab; 143 Electrode terminal; 144 Pressure relief structure; 150 Accommodation space; 160 Base plate; 170 Fireproof partition; 180 Cold plate; 181 Inlet; 182 Outlet; 183 Flow channel; 190 Module unit;

[0050] 200 Ship; 210 Hull; 211 Keel; 212 Ribs; 213 Outer plating; 214 Bulkhead; 220 Propeller blades;

[0051] 300 controller; 400 motor. Detailed Implementation

[0052] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0053] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of these features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] The following is an overview of the embodiments of this application.

[0057] Currently, with the increasing demand for energy conservation, emission reduction, and green ships in the global shipping industry, the application of electric propulsion systems and hybrid power systems in the marine field is gradually increasing. As a component of the ship's power system, the arrangement of marine battery devices has a significant impact on the overall performance and safety of the ship.

[0058] In related technologies, marine battery units are typically arranged separately. For example, a dedicated battery compartment is installed on the ship, or the battery units are centrally located in the deck area. However, this arrangement may have the following drawbacks:

[0059] First, battery installations require a significant amount of cargo space. This results in limited internal space being occupied, leading to low space utilization and impacting the flexibility of cargo capacity and the layout of other functional areas.

[0060] Secondly, the battery unit itself is quite heavy. To meet the structural strength requirements of the ship, the battery compartment usually requires additional reinforcing structures, such as reinforced ribs and thickened bulkheads. This not only further increases the structural weight of the hull but also raises the ship's construction costs.

[0061] Third, the battery pack is isolated from the hull structure. The battery pack itself lacks sufficient resistance to vibration, impact, and heeling, and it does not participate in the hull's load-bearing capacity. In the event of a collision, the battery pack is easily damaged. In severe cases, this could lead to risks such as fire and thermal runaway.

[0062] To alleviate at least one of the aforementioned problems, embodiments of this application propose a battery device. After structural design, the battery device can be integrated with the skeletal structure of the ship's hull. The skeletal structure may include, for example, keels, trusses, and ribs.

[0063] Therefore, the battery unit can not only perform its energy storage function but also serve as the hull's structural framework, thus contributing to the overall load-bearing capacity of the ship. This satisfies the structural strength requirements of the battery unit itself while reducing the need for additional battery compartments or deck areas to house it.

[0064] Therefore, this solution can reduce the space occupied by battery devices and improve the utilization rate of ship's cargo space. At the same time, this solution helps to lower the ship's center of gravity, reduce the ship's ballast requirements, and achieve weight reduction.

[0065] It should be understood that the battery device in some embodiments of this application refers to an overall energy storage system including one or more battery cells and their supporting structural components, thermal management components, safety protection components and electrical connection components.

[0066] This application provides a vessel that uses a battery device as its power source. The vessel can be an electric propulsion system, a hybrid power system, or an auxiliary power supply system.

[0067] Specifically, vessels can be electric speedboats, electric ships, electric cruise ships, electric ferries, electric cargo ships, electric tugboats, electric fishing boats, unmanned vessels, watercraft, sightseeing boats, patrol boats, and electric toy ships, etc. The above vessel types are merely examples and do not constitute a limitation on the scope of protection of this application.

[0068] In this vessel, the battery unit can be used to power the propulsion motor. It can also power the vessel's lighting, communication, navigation, control, or other electrical equipment. By integrating the battery unit with the hull frame structure, the vessel's space utilization can be improved while simultaneously achieving its power supply function, and the structural layout of the vessel can be optimized.

[0069] For ease of explanation, the following embodiments use a ship as an example from one embodiment of this application.

[0070] Reference Figure 1 The vessel 200 includes a battery unit 100, a propeller 220, a controller 300, and a motor 400. The controller 300 is used to control the battery unit 100 to supply power to the motor 400, for example, to meet the power needs of the vessel 200 during startup, navigation, and operation.

[0071] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the ship 200, but also as the driving power source for the ship 200, replacing or partially replacing fuel oil or natural gas to provide driving power for the ship 200.

[0072] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of a battery device provided in some embodiments of this application.

[0073] The battery device 100 is used in the vessel 200. The battery device 100 includes two or more first frames 110, two or more second frames 120, a cover 130, and multiple battery cells 140.

[0074] The first frame 110 can be used as the keel 211 or girder of the vessel 200, and two or more first frames 110 are arranged at intervals along a first direction. The second frame 120 can be used as the ribs 212 of the vessel 200, and two or more second frames 120 are arranged at intervals along a second direction, where the first direction is different from the second direction. In some embodiments, the first direction and the second direction may intersect, for example, be perpendicular to each other, or be approximately perpendicular, but are not limited thereto.

[0075] The first frame 110 and the second frame 120 are interconnected and staggered to form a supporting frame structure. Multiple first frames 110 and multiple second frames 120 cooperate to form multiple receiving spaces 150. At least two adjacent receiving spaces 150 can be separated by the first frame 110 or the second frame 120 to form independent or relatively isolated installation areas.

[0076] Multiple battery cells 140 are respectively arranged in corresponding receiving spaces 150. The receiving spaces 150 are used to provide installation space, limit support and structural protection for the battery cells 140, so as to improve the arrangement stability of the battery cells 140 and the overall structural strength.

[0077] The cover 130 is connected to the first frame 110 and the second frame 120. The cover 130 is used to cover at least one opening of the receiving space 150 to provide closed protection for the battery cell 140 disposed in the receiving space 150. In some embodiments, the cover 130 may form a closed or semi-closed structure together with the first frame 110 and the second frame 120 to improve the overall structural stability, protection performance and environmental adaptability of the battery device 100.

[0078] In this embodiment, the first frame 110 and the second frame 120 not only form the mounting structure for the battery cell 140, but also together constitute a load-bearing frame support structure. Therefore, the battery device 100 can not only achieve energy storage but also provide high structural strength, allowing it to participate in the overall load-bearing as part of the hull structure, thereby improving space utilization and enhancing the hull structure integration.

[0079] The first frame 110 can be understood as a group of support members arranged at intervals along a first direction. Multiple first frames 110 can be arranged at intervals with each other and together constitute part of the frame structure of the battery device 100.

[0080] In some embodiments, the first frame 110 may be an elongated structure. For example, the first frame 110 may be a rod, beam, flat strip, plate, profile, or other structural member with a supporting function. Multiple first frames 110 may be arranged sequentially along a first direction. A gap may be formed between adjacent first frames 110 to cooperate with the second frame 120 to form a receiving space 150.

[0081] The first frame 110 can be made of metallic materials. For example, the first frame 110 can be made of aluminum alloy, steel, stainless steel, or other metallic materials suitable for ship structures. The first frame 110 can also be made of high-strength composite materials. For example, the first frame 110 can be made of carbon fiber composite materials, glass fiber composite materials, or other lightweight high-strength materials. This allows for a reduction in the overall weight of the battery device 100 while maintaining structural strength.

[0082] The first frame 110 is mainly used to connect or cooperate with the second frame 120. The first frame 110 and the second frame 120 can together form a receiving space 150 for accommodating the battery cell 140. The first frame 110 can also be used to support, limit and protect the battery cell 140, thereby improving the installation stability of the battery cell 140.

[0083] Optionally, the first frame 110 can be an integral structure. That is, the first frame 110 can be formed by integral machining. Optionally, the first frame 110 can also be a segmented structure. That is, the first frame 110 can be formed by splicing, welding, riveting, screwing, or bonding multiple frame segments. In this way, the length and shape of the first frame 110 can be flexibly adjusted according to the hull structure dimensions, the arrangement position of the battery device 100, and the number of accommodating spaces 150.

[0084] The second frame 120 can be understood as another set of support members arranged at intervals along the second direction. Multiple second frames 120 can be arranged at intervals with each other and together with multiple first frames 110 constitute the frame support structure of the battery device 100.

[0085] In some embodiments, the second frame 120 may be an elongated structure. For example, the second frame 120 may be a rod, beam, flat strip, plate, profile, or other structural member with a supporting function. Multiple second frames 120 may be arranged sequentially along a second direction. A gap may be formed between adjacent second frames 120 to cooperate with the first frame 110 to form a receiving space 150.

[0086] The second direction differs from the first direction. That is, the arrangement direction of the second frame 120 may intersect with the arrangement direction of the first frame 110. In some embodiments, the second direction may be perpendicular or approximately perpendicular to the first direction. In other embodiments, the second direction may also be at a predetermined angle to the first direction. For example, this predetermined angle may be 45 degrees, 60 degrees, 70 degrees, 80 degrees, or other angles suitable for forming a support frame. Thus, the second frame 120 can be staggered with the first frame 110, forming multiple receiving spaces 150 between the staggered areas.

[0087] Multiple receiving spaces 150 can be used to accommodate multiple battery cells 140. A second frame 120 can be located between adjacent receiving spaces 150. In this way, the second frame 120 can not only form the boundary of the receiving spaces 150, but also separate, limit, and support adjacent battery cells 140. This can improve the arrangement stability of the battery cells 140 and reduce the risk of mutual compression or collision between adjacent battery cells 140.

[0088] The material of the second frame 120 can be the same as or different from that of the first frame 110. For example, the second frame 120 can be made of metal materials such as aluminum alloy, steel, and stainless steel. The second frame 120 can also be made of carbon fiber composite material, glass fiber composite material, or other high-strength composite material. Thus, the material can be selected according to the ship's structural strength requirements, lightweight requirements, and operating environment.

[0089] Optionally, the second frame 120 can be a monolithic structure. That is, the second frame 120 can be formed by integral machining. Optionally, the second frame 120 can also be a segmented structure. That is, the second frame 120 can be formed by connecting multiple frame segments through splicing, welding, riveting, screwing, snapping, or bonding. This can improve the adaptability of the second frame 120 to different hull structures and different battery arrangement schemes.

[0090] The accommodating space 150 can be understood as an installation space formed by the alternating arrangement of the first frame 110 and the second frame 120. The accommodating space 150 is used to accommodate the battery cell 140 and to limit, support and protect the battery cell 140.

[0091] In some embodiments, the first frame 110 and the second frame 120 are arranged in an alternating manner to form a plurality of receiving spaces 150. Each receiving space 150 can be used to hold one battery cell 140 or two or more battery cells 140. The specific number can be set according to the size and shape of the battery cell 140 and the capacity requirements of the battery device 100.

[0092] When the first frame 110 and the second frame 120 are arranged perpendicularly or nearly perpendicularly, the accommodating space 150 can be roughly rectangular or square grid-like. When the first frame 110 and the second frame 120 are arranged at a predetermined angle, the accommodating space 150 can also be parallelogram, trapezoid, triangle or other polygonal shapes.

[0093] In some embodiments, the shape of the receiving space 150 can also be adjusted according to the cross-sectional shape of the first frame 110 and the second frame 120. For example, when the first frame 110 and / or the second frame 120 have an arc shape, a bent shape or an irregular shape, the receiving space 150 can be formed accordingly into an irregular shape or a shape adapted to the shape of the battery cell 140.

[0094] The receiving space 150 may have an opening. The battery cell 140 can be inserted into the receiving space 150 through this opening. The cover 130 may be used to block at least one opening of the receiving space 150 to restrict the battery cell 140 from being removed from the receiving space 150 and to protect the battery cell 140.

[0095] By providing multiple accommodating spaces 150, multiple battery cells 140 can be arranged in separate zones. This not only improves the installation stability of the battery cells 140 but also reduces the risk of mutual compression, collision, or thermal impact between adjacent battery cells 140. At the same time, the first frame 110 and the second frame 120 can also form a supporting structure around the battery cells 140, thereby improving the overall structural strength of the battery device 100.

[0096] The cover 130 can be understood as a sealing component disposed at the opening of the receiving space 150. The cover 130 is used to block or cover the opening of the receiving space 150, thereby isolating the battery cell 140 disposed in the receiving space 150 from the external environment.

[0097] In some embodiments, the cover 130 may cover one opening of the receiving space 150. It may also cover two or more openings of the receiving spaces 150 simultaneously. That is, the cover 130 may be used to close part of the receiving space 150 of the battery device 100, or it may be used to close all of the receiving space 150 of the battery device 100.

[0098] The shape of the cover 130 can be adapted to the shape of the opening of the receiving space 150. For example, when the opening of the receiving space 150 is approximately rectangular, the cover 130 can be a rectangular plate structure. When the opening of the receiving space 150 is polygonal, arc-shaped, or other irregularly shaped, the cover 130 can also be set as a polygonal, arc-shaped, or irregularly shaped cover structure accordingly.

[0099] In some embodiments, the cover 130 may be a plate-like structure, a shell-like structure, a box-like structure, or other structures capable of covering the opening of the receiving space 150. The cover 130 may be a flat cover, or a shell cover structure with folded edges, flanges, reinforcing ribs, protrusions or recesses, or covering edges, to improve the connection strength and protective effect of the cover 130.

[0100] The cover 130 can be connected to the first frame 110 and / or the second frame 120. For example, the cover 130 can be connected to the top of the first frame 110 and the second frame 120. The cover 130 can also be connected to the edge of the frame formed by the first frame 110 and the second frame 120. Specific connection methods can include snap-fit, screw-fit, riveting, welding, bonding, plug-in, or compression connection, etc., and are not limited here.

[0101] The cover 130 serves to prevent dust, water, splashes, provide protection, and provide insulation. The cover 130 also prevents the battery cell 140 from detaching from the housing space 150 and reduces the impact of external shocks, vibrations, or foreign objects on the battery cell 140. This improves the safety and reliability of the battery device 100.

[0102] The material of the cover 130 can be selected according to the usage environment and structural strength requirements. For example, the cover 130 can be made of metal materials such as aluminum alloy, steel, and stainless steel. The cover 130 can also be made of plastic, rubber, ceramic materials, insulating materials, or composite materials. In some embodiments, the cover 130 can also be made of flame-retardant materials, corrosion-resistant materials, or lightweight materials to adapt to the marine usage environment.

[0103] Optionally, a seal may be provided between the cover 130 and the first frame 110 and / or the second frame 120. The seal may be a sealing ring, a sealing gasket, a sealant, or other sealing structure. By providing a seal, the sealing performance of the containing space 150 can be improved, thereby further reducing the risk of moisture, salt spray, dust, or other external media entering the containing space 150.

[0104] Cell 140 can be understood as an energy storage unit in battery device 100. Cell 140 is used to store electrical energy and output electrical energy to the propulsion system and / or electrical loads of the ship 200. Electrical loads may include lighting equipment, communication equipment, navigation equipment, control equipment, monitoring equipment, and other shipboard electrical equipment.

[0105] In some embodiments, one battery cell 140 may be disposed within the accommodating space 150. Two or more battery cells 140 may also be disposed within the accommodating space 150. The specific number of battery cells 140 within the accommodating space 150 may be selected based on the power requirements and range requirements of the vessel 200, the capacity requirements of the battery device 100, the size of the accommodating space 150, and the shape of the battery cells 140, and is not limited herein.

[0106] In the battery device 100, there can be multiple battery cells 140. These multiple cells 140 can be connected in series, in parallel, or in a mixed configuration. A mixed configuration means that some of the multiple cells 140 are connected in series while others are connected in parallel. By using different connection methods, the output voltage, output current, and overall capacity of the battery device 100 can be adjusted to meet the usage requirements of different vessels 200.

[0107] Specifically, cell 140 can be a single battery cell or a battery module. A single battery cell can be understood as a basic energy storage unit capable of independent charging and discharging. A battery module can be understood as a modular energy storage component assembled from multiple single battery cells.

[0108] In some specific embodiments, multiple battery cells can be directly connected in series, parallel, or mixed to form a battery cell group. This battery cell group can be disposed as a whole within the corresponding receiving space 150. This can improve the space utilization of the battery device 100 and facilitate its arrangement according to the shape of the receiving space 150.

[0109] In other specific embodiments, multiple battery cells can first be connected in series, parallel, or mixed to form a battery module; multiple battery modules can then be connected in series, parallel, or mixed to form a battery assembly. This battery assembly can be disposed within one or more receiving spaces 150. Using a battery module format facilitates the assembly, maintenance, replacement, and capacity expansion of the battery device 100.

[0110] The battery device 100 may also include an electrical connection structure. This electrical connection structure can be used to achieve electrical connections between multiple battery cells 140. For example, the battery device 100 may include a busbar, connecting piece, busbar, wiring harness, terminal, connector, or other conductive structure. Through the aforementioned electrical connection structure, series, parallel, or mixed connections between multiple battery cells 140 can be achieved.

[0111] In some embodiments, the battery device 100 may further include an insulating structure. The insulating structure may be disposed between the battery cell 140 and the first frame 110, between the battery cell 140 and the second frame 120, between adjacent battery cells 140, or between the battery cell 140 and the cover 130. The insulating structure can be used to reduce the risk of short circuits between the battery cell 140 and the frame structure, thereby improving the safety of the battery device 100.

[0112] In some embodiments, the battery device 100 may further include a buffer structure or a limiting structure. The buffer structure can be used to absorb vibrations or shocks generated during the operation of the vessel 200. The limiting structure can be used to restrict the movement of the battery cell 140 within the receiving space 150. This can improve the installation stability of the battery cell 140 and reduce the risk of displacement of the battery cell 140 due to vibration, shock, or roll.

[0113] Each battery cell can be a rechargeable battery, such as a lithium-ion battery, lithium iron phosphate battery, sodium-ion battery, nickel-metal hydride battery, lead-acid battery, etc.

[0114] In some embodiments, when the battery device is used for emergency power supply, backup power supply or one-time mission scenarios, the battery cell may also be a primary battery.

[0115] In some embodiments, the battery cell may be a lithium-ion battery, a lithium-sulfur battery, a sodium-ion battery, a magnesium-ion battery, a solid-state battery, a nickel-metal hydride battery, a lead-acid battery, or other types of batteries, without limitation.

[0116] The shape of the battery cell can also be selected according to actual needs. For example, the battery cell can be cylindrical, flat, cuboid, pouch, prism, or other shapes. Correspondingly, the shape and size of the accommodating space 150 can be adapted to the shape of the battery cell or battery module to improve the installation reliability and space utilization of the cell 140.

[0117] For ease of explanation, the following embodiments use a battery cell as an example from one embodiment of this application.

[0118] Please refer to Figure 3 and Figure 4 , Figure 3 A three-dimensional structural schematic diagram of the battery cell 140 provided in some embodiments of this application; Figure 4 This is a three-dimensional exploded view of the battery cell 140 provided in some embodiments of this application.

[0119] A single battery cell can be understood as a basic energy storage unit that constitutes the battery device 100. Multiple battery cells can be connected in series, parallel, or mixed to form the battery device 100.

[0120] like Figure 3 and Figure 4 As shown, in some embodiments, a battery cell may include a housing 141, an electrode assembly 142, and other functional components.

[0121] The housing 141 is used to house and protect the electrode assembly 142 and other internal structures, and to provide mechanical support and structural protection for the battery cell. The housing 141 can form a relatively enclosed internal space to reduce the impact of the external environment on the internal structure of the battery cell.

[0122] In some embodiments, the housing 141 may include an end cap 1411 and a housing 1412. The housing 1412 may form a main receiving space for accommodating the electrode assembly 142. The housing 1412 may be a cylindrical structure, a box-shaped structure, a cavity structure, or other structures with receiving functions.

[0123] End cap 1411 can be disposed at the opening of housing 1412 to close housing 1412, thereby isolating the internal environment of the battery cell from the external environment. The shape of end cap 1411 can be adapted to the shape of the opening of housing 1412. For example, when housing 1412 is a cylindrical structure, end cap 1411 can be a circular structure; when housing 1412 is a square or rectangular structure, end cap 1411 can be a square or rectangular structure accordingly. Of course, the specific shapes of end cap 1411 and housing 1412 are not limited to the above examples.

[0124] End cap 1411 can be connected to housing 1412 by welding, snap-fitting, crimping, screwing, bonding, laser welding or other connection methods to form a sealed structure. By setting end cap 1411, the sealing performance of the battery cell can be improved, reducing the risk of moisture, dust, salt spray or other external media entering the battery cell, which is especially suitable for environments such as ships.

[0125] In some embodiments, the end cap 1411 may be made of a material with high mechanical strength to improve the impact resistance and structural stability of the battery cell. For example, the end cap 1411 may be made of aluminum, aluminum alloy, copper, steel, iron, stainless steel or other metallic materials. The end cap 1411 may also be made of plastic materials, composite materials, insulating materials or other suitable materials, which are not limited in this application.

[0126] Optionally, functional components may be provided on the end cap 1411. For example, electrode terminals 143 may be provided on the end cap 1411. Electrode terminals 143 may be electrically connected to electrode assembly 142 to realize electrical connection between the battery cell and an external circuit for outputting or inputting electrical energy.

[0127] In some embodiments, a safety protection structure may also be provided on the end cap 1411. For example, a pressure relief structure 144 may be provided on the end cap 1411. When the internal pressure, temperature or gas accumulation of the battery cell reaches a preset threshold, the pressure relief structure 144 can be opened to release the internal pressure, thereby reducing the risk of the battery cell bulging, rupture or thermal runaway.

[0128] Furthermore, a single battery cell may also include other functional components. For example, a single battery cell may also include insulation components, seals, conductive connectors, safety valves, explosion-proof structures, temperature detection components, current detection components, or other suitable structures, which are not limited in this application. This can further improve the safety, stability, and environmental adaptability of the single battery cell.

[0129] In some embodiments, an insulating element may also be provided on the inner side of the end cap 1411. The insulating element may be provided between the end cap 1411 and the internal conductive structure of the battery cell to electrically isolate the electrical connection components, thereby reducing the risk of short circuit between the electrical connection components and the end cap 1411 and improving the electrical safety performance of the battery cell.

[0130] The insulating component can be a sheet-like structure, a pad-like structure, a sleeve-like structure, a covering structure, or other structures with insulating functions. The insulating component can be placed in a corresponding position according to the arrangement of the internal structure of the battery cell. For example, the insulating component can be placed around the electrode terminal 143, between the electrical connector and the end cover 1411, or on the inner surface area of ​​the end cover 1411.

[0131] The material of the insulating component can be selected based on its insulation performance, heat resistance, and environmental adaptability. For example, the insulating component can be made of plastic, rubber, polyimide, ceramic, epoxy resin, insulating composite material, or other suitable insulating materials, and this application does not limit this.

[0132] The housing 1412 can be understood as the main structure used to cooperate with the end cap 1411 to form the internal housing space of the battery cell. The formed internal space can be used to accommodate the electrode assembly 142, electrolyte, separator, electrical connection structure and other functional components.

[0133] The housing 1412 can be a separate component, distinct from the end cap 1411. In this case, the housing 1412 can have an opening. The electrode assembly 142 and other components can be installed inside the housing 1412 through this opening. Subsequently, the end cap 1411 can be closed onto the opening and connected to the housing 1412 by welding, crimping, snap-fitting, screwing, bonding, laser welding, or other connection methods, thereby forming a relatively closed internal environment.

[0134] In other embodiments, the end cap 1411 and the housing 1412 can also be an integrated structure. That is, the end cap 1411 and the housing 1412 can be pre-formed as an integrated main structure, retaining only the assembly port, injection port, or encapsulation port for assembling the electrode assembly 142 or injecting electrolyte. After the internal components are assembled, the corresponding openings are sealed by the encapsulation structure. In this way, a closed internal environment for the battery cell can also be formed.

[0135] The shape of the housing 1412 can be selected according to the structural design of the battery cell. For example, the housing 1412 can be a cuboid, a square prism, a cylinder, a hexagonal prism, an elliptical cylinder, or other regular or irregular shapes. The specific shape of the housing 1412 can be adapted to the shape and size of the electrode assembly 142 and the capacity requirements of the battery cell.

[0136] For example, when the electrode assembly 142 is a wound structure, the housing 1412 can be a cylindrical or elliptical cylindrical structure. When the electrode assembly 142 is a stacked structure, the housing 1412 can be a cuboid or square prism structure. Of course, this application does not limit this.

[0137] The casing 1412 can be made of a material with certain mechanical strength and corrosion resistance to improve the structural stability and environmental adaptability of the battery cell. For example, the casing 1412 can be made of metal materials such as copper, iron, steel, stainless steel, aluminum, and aluminum alloys. The casing 1412 can also be made of plastic materials, composite materials, or other suitable materials.

[0138] In some embodiments suitable for marine environments, the hull 1412 may be made of corrosion-resistant or corrosion-treated materials to improve its reliability and service life in high humidity, high salt spray, vibration and shock environments.

[0139] In addition, the housing 1412 can also serve a structural support function. That is, in addition to housing internal components, the housing 1412 can also withstand mechanical loads from the outside, thereby improving the overall compressive strength, impact resistance, and structural stability of the battery cell.

[0140] Electrode assembly 142 can be understood as the core energy storage structure in a battery cell used for electrochemical reactions. Electrode assembly 142 is used to realize the mutual conversion between electrical energy and chemical energy, thereby enabling the battery cell to have charging and discharging functions.

[0141] In some embodiments, one electrode assembly 142 may be disposed within the housing 141. Two or more electrode assemblies 142 may also be disposed. The arrangement of multiple electrode assemblies 142 can be determined according to the capacity requirements, structural dimensions, and output performance requirements of the individual battery cells, and is not limited herein.

[0142] Electrode assembly 142 typically includes a positive electrode structure, a negative electrode structure, and an isolation structure disposed between the positive electrode structure and the negative electrode structure. The isolation structure can be used to isolate the positive electrode structure and the negative electrode structure to prevent direct contact between the positive and negative electrodes from causing a short circuit, while allowing ions to pass through to achieve electrochemical reactions.

[0143] In some embodiments, the isolation structure may be a separator. The separator may be made of polyolefin material, porous polymer material, ceramic coating material or other isolation material suitable for battery use, and this application does not limit the application to this.

[0144] The positive electrode structure may include a positive electrode current collector and a positive electrode active material layer disposed on the positive electrode current collector. The negative electrode structure may include a negative electrode current collector and a negative electrode active material layer disposed on the negative electrode current collector.

[0145] The positive and negative active materials can be selected according to the battery type. For example, when the battery cell is a lithium-ion battery, the positive active material may include lithium iron phosphate, ternary materials, lithium manganese oxide, lithium cobalt oxide, etc., and the negative active material may include graphite, silicon-based materials, hard carbon, or other suitable materials. Of course, this application is not limited to a specific battery system.

[0146] In some embodiments, the electrode assembly 142 may employ a wound structure. That is, the positive electrode, the separator, and the negative electrode may be stacked in a predetermined order and then wound to form a core structure.

[0147] In other embodiments, the electrode assembly 142 may also employ a stacked structure. That is, multiple positive electrode plates, negative electrode plates, and separators can be stacked alternately in layers to form a stacked structure.

[0148] The portions of the positive and negative electrodes containing active materials together constitute the main body of the electrode assembly 142. The main body is the region in the electrode assembly 142 where the main electrochemical reaction occurs.

[0149] The uncoated portions of the positive and negative electrodes can each form tabs 1421. Tabs 1421 can be used to connect the electrode assembly 142 to an external circuit to achieve electrical energy input and output.

[0150] In some embodiments, the positive electrode tab 1421 and the negative electrode tab 1421 may be disposed at the same end of the main body. For example, the positive electrode tab 1421 and the negative electrode tab 1421 may be located together in the top region of the main body.

[0151] In other embodiments, the positive electrode tab 1421 and the negative electrode tab 1421 may also be located at opposite ends of the main body. Such a structure can optimize current distribution, reduce internal resistance, or improve heat dissipation performance.

[0152] The tab 1421 can be electrically connected to the electrode terminal 143. For example, the tab 1421 can be connected to the electrode terminal 143 by welding, ultrasonic welding, laser welding, crimping or other conductive connection methods to form a current loop.

[0153] During the charging process of a single battery cell, external electrical energy is input to the electrode assembly 142 through electrode terminal 143, thereby driving the electrochemical reaction and achieving energy storage. During the discharging process of a single battery cell, the electrochemical reaction in the electrode assembly 142 releases electrical energy, which is output to an external load through tab 1421 and electrode terminal 143.

[0154] Furthermore, the size, number of layers, number of winding turns, number of tabs, and arrangement of the electrode assembly 142 can be designed according to the capacity requirements, rate performance requirements, heat dissipation requirements, and structural size requirements of the battery cell, and this application does not impose any limitations on these aspects.

[0155] The battery device 100 provided in this embodiment of the application has two or more first frames 110 and two or more second frames 120. The multiple first frames 110 and multiple second frames 120 are arranged alternately and together form multiple receiving spaces 150. The receiving spaces 150 can be used to receive battery cells 140, thereby realizing the installation, support, limiting and protection of battery cells 140.

[0156] Through the skeleton structure formed by the first skeleton 110 and the second skeleton 120, the battery device 100 can accommodate and protect the battery cell 140 without relying on a traditional independent box structure. In other words, the first skeleton 110 and the second skeleton 120 themselves can form a support frame with a certain mechanical strength to support the battery cell 140 and resist external loads, vibrations or impacts, thereby improving the overall structural stability and safety of the battery device 100.

[0157] When the battery device 100 is applied to ships, floating platforms, or other equipment, the first frame 110 and the second frame 120 can not only serve as the internal support structure of the battery device 100, but also as the load-bearing structure of the equipment body. For example, in ship applications, the first frame 110 and the second frame 120 can be used as the keel, girder, rib, reinforcing beam, frame structure, or other load-bearing frame structure of the hull.

[0158] Therefore, the battery device 100 can integrate energy storage and structural support functions. Compared with the traditional approach of independently setting up the battery device in a dedicated battery compartment or box, the battery device 100 in this embodiment can reduce the need for independent support structures and independent mounting structures, thereby reducing redundant structural design.

[0159] In this way, on the one hand, the internal space occupied by the ship can be reduced, the utilization rate of the cabin can be improved, and more space can be used for cargo, equipment layout or other functional purposes; on the other hand, the use of additional reinforcing structures can be reduced, thereby reducing the overall structural weight, optimizing the hull counterweight design, and helping to lower the center of gravity of the ship and improve the ship's operational stability.

[0160] Furthermore, since the battery device 100 itself participates in the overall structural stress, when the ship is subjected to vibration, impact, collision or roll load, the external load can be transmitted and dispersed through the first frame 110 and the second frame 120, thereby reducing the risk of the battery cell 140 directly bearing concentrated impact load and improving the impact resistance and structural reliability of the battery device 100.

[0161] Therefore, the battery device 100 provided in this application embodiment realizes the integrated design of energy storage structure and load-bearing structure, taking into account space utilization, structural strength, lightweight and safety performance, and is especially suitable for ship application scenarios with high requirements for space utilization and structural integration.

[0162] Therefore, the battery device 100 in this application embodiment can reduce or eliminate the need for a separate battery compartment, separate battery box, or dedicated deck layout area in equipment such as ships, thereby improving the utilization rate of the internal space of equipment such as ships and enhancing the compactness and integration of the overall structure.

[0163] Since the battery unit 100 can be integrated with the hull structure, the space originally used for arranging an independent battery compartment can be freed up for cargo, equipment layout, personnel activity areas or other functional purposes, thereby improving the effective cabin capacity and overall functional layout flexibility of the vessel 200.

[0164] In some embodiments, the battery device 100 may be disposed in a low structural area of ​​the vessel 200, such as near the keel 211, bottom girder, or hull frame. Since the battery cell 140 itself has a certain weight, the battery device 100 can also function as a counterweight, thereby reducing the need for additional dedicated counterweight structures in the vessel 200. This reduces the overall structural weight of the vessel 200, optimizes weight distribution, and lowers the center of gravity of the vessel 200, thereby improving the vessel 200's stability, anti-roll capability, and maneuverability during navigation.

[0165] Furthermore, by directly accommodating the battery cell 140 within the accommodating space 150 formed by the first frame 110 and the second frame 120, the need for additional independent battery boxes, redundant battery frames, or additional mounting support structures found in traditional battery devices can be reduced. This not only reduces the amount of structural materials used and lowers the hull weight 210, but also reduces manufacturing costs, assembly costs, and structural complexity.

[0166] Meanwhile, since there is a certain structural space between the original keel, truss, ribs or other skeleton structures of the hull, the embodiments of this application integrate such structural space with the battery device 100, so that the space originally used only for structural support also has the function of energy storage, thereby improving the comprehensive utilization rate of the structural space.

[0167] In other words, the structural area that originally only served a mechanical load-bearing function can further undertake the function of battery placement. In this way, under the same hull size, more battery cells 140 can be placed, thereby increasing the total energy storage capacity of the battery device 100, and thus improving the ship 200's range, continuous power supply capability, and power system adaptability.

[0168] When the ship 200 is subjected to external loads during navigation, such as wave impact loads, collision loads, vibration loads, heel loads or structural torsional loads, the external loads can be transmitted and dispersed through the frame structure formed by the first frame 110 and the second frame 120, and further transmitted to the overall structure of the ship.

[0169] This avoids the concentrated application of external loads to a local cell 140 or a single connection point, thereby reducing the risk of localized stress concentration, structural deformation, or mechanical damage to the battery device 100.

[0170] Therefore, the battery device 100 in this embodiment can improve the overall impact resistance, vibration resistance, roll resistance and structural reliability, and help reduce the risk of cell 140 damage, short circuit, thermal runaway or safety accidents caused by mechanical impact. It is especially suitable for application scenarios such as ships that are in a long-term vibration, impact and complex load environment.

[0171] In some embodiments, the first direction can be Figure 2 The direction indicated by B. The first direction may correspond to the longitudinal direction of hull 210, for example... Figure 5 The direction indicated by C. The second direction can be... Figure 2 The direction indicated by A. The second direction may correspond to the transverse direction of hull 210, for example... Figure 5 The direction indicated by D in the middle.

[0172] In other words, the first frame 110 can be arranged longitudinally along the hull 210, and the second frame 120 can be arranged transversely along the hull 210. The first frame 110 and the second frame 120, when staggered, form a frame structure adapted to the hull 210's skeletal structure. Therefore, the battery device 100 can be better integrated with the keel, girder, ribs, or other load-bearing structures of the hull 210.

[0173] In some embodiments, the first frame 110 and the second frame 120 may be made of high-strength steel, aluminum alloy, stainless steel, carbon fiber composite material, glass fiber composite material, or other high-strength materials. By selecting the above materials, the first frame 110 and the second frame 120 can meet the structural strength requirements of the hull 210 while also taking into account lightweight, corrosion resistance, and environmental adaptability.

[0174] In some embodiments, the battery device 100 may further include a base plate 160. The base plate 160 may be connected to the first frame 110 and the second frame 120. The base plate 160 and the cover 130 may be correspondingly spaced apart along the height direction of the battery device 100. The receiving space 150 may be located between the base plate 160 and the cover 130.

[0175] The base plate 160 can be understood as a support component disposed at the bottom of the battery device 100. The base plate 160 can be used to support the battery cell 140 and provide bottom support for the battery cell 140. The base plate 160 can also be used to resist impact, compression or vibration loads from the bottom of the battery device 100, thereby protecting the battery cell 140.

[0176] In some embodiments, the base plate 160 can be a plate-like structure. The base plate 160 can also be a reinforced plate structure with reinforcing ribs, folded edges, flanges, concave-convex structures, or locally thickened structures. By providing the above structures, the load-bearing capacity and deformation resistance of the base plate 160 can be improved.

[0177] The shape of the base plate 160 can be selected according to the overall shape of the battery device 100, the distribution of the accommodating space 150, and the shape of the installation area of ​​the hull 210. For example, the base plate 160 can be a rectangular plate, a square plate, a polygonal plate, an arc-shaped plate, or an irregularly shaped plate, and this application does not limit it in this regard.

[0178] Understandably, the mounting area of ​​the hull or bottom of the vessel may typically be curved, irregular, or have a locally uneven structure. By providing a base plate 160, a relatively flat and continuous bearing surface can be formed at the bottom of the receiving space 150. This reduces the risk of the battery cell 140 being suspended, tilted, wobbling, or subjected to uneven force due to uneven mounting areas, thus ensuring that the battery cell 140 can be stably mounted within each receiving space 150.

[0179] The base plate 160 can serve as the bottom enclosure of the battery device 100 housing structure. The base plate 160, together with the first frame 110, the second frame 120, and the cover 130, can form a relatively complete box structure or compartment structure. Thus, the accommodating space 150 can form an installation space that is enclosed or at least partially enclosed from both the top and bottom, thereby improving the battery device 100's waterproof, dustproof, splashproof, and foreign object ingress prevention capabilities.

[0180] In some embodiments, the base plate 160 can also improve the overall structural strength of the battery device 100. After the base plate 160 is connected to the first frame 110 and the second frame 120, it can enhance the connection stability between the first frame 110 and the second frame 120, and improve the bending, torsional, and impact resistance of the battery device 100. This facilitates the battery device 100's participation in the overall load-bearing as part of the hull 210.

[0181] The floor plate 160 can be made of metallic materials, composite materials, or insulating materials. For example, the floor plate 160 can be made of steel, stainless steel, aluminum, aluminum alloy, titanium alloy, carbon fiber composite material, glass fiber composite material, flame-retardant plastic, or other suitable materials. In marine applications, the floor plate 160 can also be made of corrosion-resistant materials, or have anti-corrosion coatings, waterproof coatings, insulating coatings, or flame-retardant coatings applied to its surface to improve its reliability in high humidity, salt spray, and vibration environments.

[0182] For example, the base plate 160 can be connected to the first frame 110 and / or the second frame 120 by means of welding, screwing, riveting, snap-fitting, plugging, bonding, or compression. The base plate 160 can also be connected to the first frame 110 and the second frame 120 by detachable connectors. Detachable connectors may include screws, bolts, rivets, clips, or other connectors. This detachable connection method facilitates the installation, maintenance, replacement, and repair of the battery cell 140.

[0183] In some embodiments, at least one reinforcing rib 111 may be provided on the first frame 110. The reinforcing rib 111 may be provided on the surface, side, top, bottom or internal region of the first frame 110. The reinforcing rib 111 is used to improve the structural stiffness and structural strength of the first frame 110.

[0184] Specifically, the stiffener 111 can increase the moment of inertia of the first frame 110, thereby improving the bending resistance, torsional resistance and deformation resistance of the first frame 110. In this way, when the first frame 110 is subjected to a load transmitted by the hull 210 along the first direction, the first frame 110 is not prone to bending, torsion or local deformation.

[0185] Since the first frame 110 is used not only to form the side wall or support boundary of the battery device 100, but also as the keel, truss, longitudinal beam or other longitudinal load-bearing structure of the hull 210, the first frame 110 needs to meet both the installation protection requirements of the battery cell 140 and the structural load-bearing requirements of the hull 210.

[0186] When the first frame 110 and the second frame 120 together enclose the receiving space 150, the local structure of the first frame 110 may need to reserve an area for forming the receiving space 150. Compared with traditional solid beam or complete beam structures, the effective load-bearing section of the first frame 110 may be reduced, resulting in a decrease in local structural strength or stiffness.

[0187] Therefore, by providing reinforcing ribs 111 on the first frame 110, the first frame 110 can be locally strengthened. The reinforcing ribs 111 can compensate for the structural strength loss caused by forming the accommodating space 150, so that the first frame 110 can still meet the overall load-bearing requirements of the hull 210 while serving as the side wall support function of the battery device 100.

[0188] In some embodiments, the reinforcing rib 111 may extend along the length direction of the first frame 110. This can improve the continuous load-bearing capacity of the first frame 110 along the first direction. In other embodiments, the reinforcing rib 111 may also extend along the width direction, height direction, or inclined direction of the first frame 110 to reinforce local areas of the first frame 110.

[0189] The number of reinforcing ribs 111 can be one or more. Multiple reinforcing ribs 111 can be arranged at intervals, in parallel, intersecting, or in a grid pattern. The specific number, location, extension direction, and cross-sectional shape of the reinforcing ribs 111 can be selected according to the stress conditions of the first frame 110, the material strength, the size of the accommodating space 150, and the structural requirements of the hull 210.

[0190] The reinforcing rib 111 can be integrally formed with the first frame 110, or it can be connected to the first frame 110 as an independent component. For example, the reinforcing rib 111 can be fixed to the first frame 110 by welding, riveting, screwing, bonding, snapping, or other connection methods.

[0191] By incorporating reinforcing ribs 111, the bending stiffness, impact resistance, and fatigue resistance of the first frame 110 can be improved, reducing the risk of deformation or damage to the first frame 110 during ship navigation due to vibration, impact, roll, or wave loads. This improves the structural reliability and operational safety of the battery device 100.

[0192] In some embodiments, the reinforcing rib 111 may be disposed on the surface of the first frame 110 on the side opposite to the receiving space 150. That is, the reinforcing rib 111 may be located in the outer region of the receiving space 150, rather than extending into the receiving space 150.

[0193] By adopting the above arrangement, on the one hand, the reinforcing rib 111 can strengthen the structure of the first frame 110, thereby improving the structural rigidity and load-bearing capacity of the first frame 110; on the other hand, since the reinforcing rib 111 does not occupy the internal volume of the accommodating space 150, it will not reduce the effective space used to arrange the battery cells 140, which is conducive to maintaining the energy storage capacity of the battery device 100.

[0194] Since the reinforcing rib 111 is located outside the accommodating space 150, the reinforcing rib 111 does not need to be in direct contact with the battery cell 140, thereby reducing the risk of mechanical damage to the battery cell 140 caused by structural component compression, collision, friction or local deformation, which helps to improve the structural safety and operational reliability of the battery cell 140.

[0195] In some embodiments, the reinforcing rib 111 may include at least one first rib 1111 and a plurality of second ribs 1112. The first rib 1111 and the second ribs 1112 may together form a reinforcing structure.

[0196] Specifically, the length direction of the first rib 1111 can be set along the second direction. A plurality of second ribs 1112 can be arranged at intervals along the second direction and respectively interleaved with the first rib 1111.

[0197] In other words, the first rib 1111 can form the main reinforcing member extending along the surface of the first skeleton 110, while multiple second ribs 1112 can be connected to the first rib 1111 as auxiliary supporting members to form a cross-reinforcing structure.

[0198] In the above structure, the first rib 1111 extends along the second direction, which can effectively increase the cross-sectional size of the first frame 110 away from the neutral axis, thereby increasing the cross-sectional moment of inertia of the first frame 110 and enhancing the ability of the first frame 110 to resist bending deformation.

[0199] For example, when the first frame 110 is used as a longitudinal load-bearing structure of the hull 210 (such as keel 211, longitudinal girder, or longitudinal stiffening beam), the first frame 110 may mainly bear the bending load transmitted along the first direction. In this case, the first stiffener 1111 extending along the second direction can effectively improve the bending resistance of the first frame 110.

[0200] However, if only a relatively long first rib 1111 is provided, the first rib 1111 may have a large slenderness ratio, and is prone to lateral buckling or local instability when subjected to compressive load, extrusion load or local impact load.

[0201] Therefore, in some embodiments, by providing multiple second ribs 1112, the first rib 1111 can be supported and segmented for constraint. After the multiple second ribs 1112 are staggered and connected with the first rib 1111, it is equivalent to forming multiple intermediate support points on the first rib 1111.

[0202] This effectively shortens the free buckling length of the first stiffener 1111, reduces the risk of local buckling, thereby improving the stability and load-bearing capacity of the first stiffener 1111 and further enhancing the structural strength of the entire first frame 110.

[0203] In some embodiments, the number of first ribs 1111 can be one or more. Multiple first ribs 1111 can be spaced apart along a first direction, or arranged symmetrically or asymmetrically according to stress requirements.

[0204] When multiple first stiffeners 1111 are set, the overall bending resistance and deformation resistance of the first frame 110 can be further improved, which is especially suitable for high load or large span application scenarios.

[0205] After multiple first ribs 1111 and multiple second ribs 1112 are arranged in an alternating manner, a grid-like reinforcing structure, a frame-like reinforcing structure, or a honeycomb-like approximate reinforcing structure can be formed.

[0206] This multi-point supported cross-reinforcement structure can improve the overall structural stability, impact resistance and fatigue resistance of the first frame 110, and distribute the load over a wider range, thereby reducing the risk of local stress concentration.

[0207] In marine applications, this structure helps improve the structural reliability and safety of the battery device 100 under long-term vibration, wave impact, roll load and mechanical collision environments.

[0208] In some embodiments, the battery device 100 may further include one or more fireproof partitions 170. The fireproof partitions 170 may be disposed within the receiving space 150 and divide the receiving space 150 into two or more compartments. Each compartment may accommodate one or more battery cells 140.

[0209] Fireproof partition 170 can be understood as a partition component with fireproof, heat insulation or flame retardant functions. Fireproof partition 170 is used to form a thermal insulation structure between adjacent cells 140 or adjacent cell groups to reduce the risk of heat, flame or high temperature gas spreading between different compartments.

[0210] In some embodiments, the fireproof partition 170 may extend along a first direction, a second direction, or the height direction of the battery device 100. The fireproof partition 170 may also be configured as a transverse partition, a longitudinal partition, a vertical partition, or a cross partition, depending on the shape of the accommodating space 150 and the arrangement of the battery cells 140.

[0211] By installing fireproof partitions 170, a large accommodating space 150 can be divided into multiple relatively independent compartments. In this way, when an abnormal temperature rise, fire, or thermal runaway occurs in any of the battery cells 140 in any compartment, the fireproof partitions 170 can block the flames, high-temperature gases, and heat radiation, thus confining the thermal runaway to the corresponding compartment as much as possible and reducing the risk of it spreading to adjacent compartments.

[0212] The fireproof partition 170 can maintain a certain structural integrity under high-temperature environments. That is to say, when the fireproof partition 170 is subjected to flame burning or high-temperature impact, it is not easy to burn, melt through, collapse, or lose its isolation function. Thus, it can effectively cut off or slow down the path of high-temperature heat source to adjacent areas, including heat conduction path, heat convection path, and heat radiation path.

[0213] In some embodiments, the fireproof partition 170 may be made of non-combustible materials, flame-retardant materials, heat-resistant materials, or fire-resistant composite materials. For example, the fireproof partition 170 may be made of ceramic fiber board, mica board, calcium silicate board, glass fiber reinforced material, rock wool composite board, aerogel insulation material, flame-retardant composite material, or metal sandwich fireproof board, etc., and this application does not limit it.

[0214] In some embodiments, the fireproof partition 170 may also have an insulation layer, a reflective layer, a fire-resistant layer, or a reinforcing layer. The insulation layer can reduce the rate of heat transfer. The reflective layer can reduce the effects of heat radiation. The fire-resistant layer can improve the fireproof partition 170's resistance to ablation at high temperatures. The reinforcing layer can improve the structural strength and impact resistance of the fireproof partition 170.

[0215] For example, the fireproof partition 170 can be an A60-grade fireproof partition. The A60-grade fireproof partition can be made of non-combustible materials and can maintain structural integrity and meet the temperature rise requirements on the unexposed side after exposure to standard fire resistance test conditions that meet the ship fire resistance test standards for at least 60 minutes.

[0216] It should be noted that the aforementioned A60-grade fireproof bulkhead is merely an example. In other embodiments, the fireproof bulkhead 170 may also adopt A0, A15, A30, or other fireproof structures that meet the fire protection requirements of ships. The fireproof rating, thickness, material, and installation method of the fireproof bulkhead 170 can be selected according to the capacity of the battery device 100, the safety level requirements of the ship 200, and its placement location.

[0217] By setting up fireproof partitions 170, the thermal safety performance of the battery device 100 can be improved, the risk of chain propagation after thermal runaway of the battery cell 140 can be reduced, and the operational safety of the ship 200 under abnormal operating conditions can be improved.

[0218] In some embodiments, the battery device 100 may have a plurality of module units 190. Each module unit 190 may include one or more battery cells 140. Fireproof partitions 170 may be disposed between adjacent module units 190 to separate adjacent module units 190.

[0219] The module unit 190 can be understood as a battery functional unit composed of one or more battery cells 140. In some embodiments, the module unit 190 may include a plurality of battery cells 140. The plurality of battery cells 140 may be electrically connected in series, parallel or series-parallel connection to enable the module unit 190 to have a predetermined output voltage, output current and capacity.

[0220] Multiple module units 190 can also be connected in series, parallel, or series-parallel to form the energy storage structure of the battery device 100. By setting multiple module units 190, the modularity of the battery device 100 can be improved, facilitating assembly, testing, maintenance, and replacement.

[0221] During the operation of the battery device 100, if a cell 140 or a module unit 190 experiences thermal runaway due to internal short circuit, external short circuit, puncture, compression, overcharge, over-discharge, or high temperature, it may generate a large amount of heat, accompanied by flame jets, release of high-temperature gases, and emission of flammable or toxic fumes. Adjacent cells 140 or adjacent module units 190 may be further heated under the influence of thermal radiation, high-temperature gases, flames, or thermal conduction, triggering thermal runaway and causing a chain reaction of thermal runaway within the battery device 100.

[0222] Based on this, a fireproof partition 170 is installed between adjacent module units 190 to form a fireproof and heat-insulating barrier between them. When any module unit 190 experiences thermal runaway, the fireproof partition 170 can block or slow down the spread of flames, high-temperature gases, heat radiation, and smoke to adjacent module units 190, thereby limiting the thermal runaway to a single module unit 190 or a smaller area.

[0223] This reduces the risk of thermal runaway spreading from a single cell 140 or a single module unit 190 to the entire battery device 100, thereby improving the thermal safety performance, fire resistance performance, and overall operational reliability of the battery device 100.

[0224] In some embodiments, the accommodating space 150 may be divided into two or more compartments arranged along a first direction by a fireproof partition 170. Each compartment may accommodate one module unit 190, two or more module units 190, or one or more battery cells 140.

[0225] Understandably, when the battery assembly 100 is integrated with the keel 211 or longitudinal frame structure of the hull 210, the keel 211 typically extends longitudinally along the hull 210. Accordingly, the accommodating space 150 may also be arranged to extend along the first direction and have a relatively long length.

[0226] Therefore, dividing the accommodating space 150 into multiple compartments arranged along the first direction using fireproof partitions 170 can adapt to the structural characteristics of the accommodating space 150 extending along the first direction. This not only makes full use of the length of the accommodating space 150, but also divides the long and narrow accommodating space 150 into multiple independent or relatively independent fire-resistant zones, thereby reducing the risk of continuous spread of thermal runaway along the first direction.

[0227] In some embodiments, slots 109 may be provided on the surfaces of the first frame 110 and / or the second frame 120 facing the receiving space 150. The end of the fireproof partition 170 may extend into the slot 109. The slot 109 may be used to position, guide, and limit the fireproof partition 170.

[0228] Specifically, the fireproof partition 170 can be installed in the slot 109 by inserting and fitting. The side wall of the slot 109 can cooperate with the end of the fireproof partition 170 to prevent the fireproof partition 170 from shifting, shaking, or falling out within the receiving space 150. Thus, the fireproof partition 170 can be snapped and fixed.

[0229] By setting the slot 109, on the one hand, an assembly benchmark can be provided for the fireproof partition 170, reducing positional errors during assembly and improving the array accuracy and dimensional consistency when multiple compartments are arranged along the first direction. On the other hand, when installing the fireproof partition 170, assembly can be completed by insertion, thereby simplifying the installation steps and improving assembly efficiency and ease of installation.

[0230] In some embodiments, the slot 109 can be a straight slot, a dovetail slot, a U-shaped slot, a T-shaped slot, or other slot structure capable of accommodating and limiting the end of the fireproof partition 170. The slot 109 can extend along the height direction of the battery device 100, or along a second direction or other predetermined direction, specifically depending on the installation direction and partitioning method of the fireproof partition 170.

[0231] Optionally, a sealing material, flame-retardant adhesive, high-temperature resistant sealing strip, or heat-insulating filler material may be provided between the fireproof partition 170 and the slot 109. This can improve the sealing and heat insulation continuity between the fireproof partition 170 and the first frame 110 or the second frame 120, and reduce the risk of flames, high-temperature gases, or smoke spreading from the connection gap.

[0232] It is understood that the fireproof partition 170 is not limited to being fixed by the slot 109. In other embodiments, the fireproof partition 170 may also be fixed to the first frame 110 and / or the second frame 120 by means of slide rail, riveting, screwing, welding, clamping, pressing, gluing or bonding, etc., and this application does not limit this.

[0233] In some embodiments, the battery device 100 may further include a cold plate 180. The cold plate 180 is disposed within the receiving space 150 and is thermally connected to the battery cell 140. The cold plate 180 may be provided with an inlet 181 and an outlet 182. The battery device 100 may further include a first interface 101 for accessing the thermal management medium and a second interface 102 for discharging the thermal management medium. The first interface 101 may communicate with the inlet 181, and the second interface 102 may communicate with the outlet 182.

[0234] The cold plate 180 can be understood as a heat exchange component used for thermal management of the battery cell 140. The cold plate 180 can be in direct contact with the battery cell 140, or it can be indirectly thermally connected to the battery cell 140 through thermally conductive pads, thermally conductive adhesives, thermally conductive insulating layers, thermally conductive structural components, or other thermally conductive media. Through the above structure, the heat generated by the battery cell 140 during charging and discharging can be transferred to the cold plate 180 and carried away by the thermal management medium flowing through the cold plate 180.

[0235] In some embodiments, the cold plate 180 may be disposed at the bottom, side, top of the cell 140, or between multiple cells 140. The specific arrangement of the cold plate 180 can be selected according to the structure of the cell 140, the heat distribution, and the heat dissipation requirements. For example, for a cuboid cell, the cold plate 180 may be attached to a large area of ​​the side or bottom of the cell 140 to improve heat exchange efficiency.

[0236] The cold plate 180 can be internally configured with a flow channel structure for the flow of the heat management medium. The flow channel structure can be a straight flow channel, a serpentine flow channel, a branched flow channel, a grid flow channel, a parallel flow channel, or other flow channel structures suitable for heat exchange; this application does not limit this type of structure. By configuring the flow channel structure, the heat exchange area can be increased, thereby improving the heat exchange efficiency between the heat management medium and the cold plate 180.

[0237] The inlet 181 on the cold plate 180 can serve as the inflow end of the thermal management medium, and the outlet 182 can serve as the outflow end of the thermal management medium. Correspondingly, the first interface 101 and the second interface 102 can serve as the connection interfaces between the battery device 100 and the external thermal management system, respectively.

[0238] During use, the thermal management medium can enter the cold plate 180 through the first interface 101 and flow through the internal channels of the cold plate 180 to exchange heat with the heat transferred from the battery cell 140. After absorbing heat, the thermal management medium can flow out through the outlet 182 and be discharged from the battery device 100 through the second interface 102, thereby carrying away the heat generated by the battery cell 140 during operation and keeping the operating temperature of the battery cell 140 within a predetermined range.

[0239] This reduces the risk of performance degradation, shortened lifespan, or thermal runaway of the battery cell 140 due to continuous high-temperature operation, and improves the safety, stability, and service life of the battery device 100.

[0240] In some embodiments, the thermal management medium may be a liquid medium. For example, the thermal management medium may be water, coolant, antifreeze, ethylene glycol solution, deionized water, insulating coolant, or other suitable fluids.

[0241] In some alternative embodiments, the first interface 101 can be directly connected to an external liquid to introduce an external natural water body as a heat management medium. Based on the application scenario of the ship 200, the external liquid can be seawater, river water, lake water, or other natural water bodies that can be used for heat exchange.

[0242] By using an external liquid as the thermal management medium, the battery device 100 can be cooled directly from the natural cold source in the environment surrounding the ship 200. Compared with the traditional thermal management scheme that uses an independent coolant circuit and secondary heat exchange through a heat exchanger, this scheme can reduce intermediate heat exchange links, shorten the heat transfer path, thereby improving heat exchange efficiency and simplifying the system structure.

[0243] Because external liquid sources are widely available and sustainable, there is usually no need to configure a large amount of coolant storage system or to frequently purchase or replenish dedicated thermal management media, which helps to reduce system costs, operating costs and maintenance costs.

[0244] In some embodiments, to adapt to corrosive media environments such as seawater, the cold plate 180, the first interface 101, the second interface 102, and the related flow channel structure can be made of corrosion-resistant materials. For example, stainless steel, titanium alloy, corrosion-resistant aluminum alloy, composite materials, or metal materials with anti-corrosion surface treatment can be used.

[0245] In other embodiments, the first interface 101 and the second interface 102 may also be connected to an independent thermal management circuit inside the ship 200, instead of directly using external liquid. That is to say, the thermal management scheme in this application can adopt either an open cooling structure or a closed-loop cooling structure, and this application does not limit it in this regard.

[0246] In some embodiments, when the battery device 100 includes a base plate 160, the cold plate 180 can be connected to the first frame 110, the second frame 120, or the base plate 160 via a plug-in locking structure.

[0247] The interlocking structure can be understood as a modular assembly connection structure. This structure achieves initial positioning through the opposing insertion and engagement of two components, and applies a fastening force through a locking element to achieve a stable connection.

[0248] For example, the cold plate 180 can first be inserted into the first frame 110, the second frame 120 and / or the base plate 160 along a predetermined direction to form a pre-positioned relationship between the cold plate 180 and the corresponding structure. Subsequently, the connection position is fixed by a locking element to achieve a reliable connection between the cold plate 180 and the first frame 110, the second frame 120 and / or the base plate 160.

[0249] The locking element can be a screw, bolt, snap-fit, pin, locking plate, resilient locking element, clamping element or other structural component suitable for locking and fixing, and this application does not limit it.

[0250] The above connection method allows for rapid positioning via the plug-in structure before final locking, reducing positional deviations during cold plate 180 assembly and improving assembly accuracy and success rate. Furthermore, this structure facilitates disassembly and assembly, thus aiding in the maintenance, replacement, or repair of the cold plate 180.

[0251] In some embodiments, the interlocking structure may further include a guide structure. For example, the interlocking structure may include a guide groove, a guide protrusion, an interlocking interface, a positioning hole, a positioning post, or other guide and positioning structures. By providing a guide structure, the alignment accuracy and installation convenience during the assembly process of the cold plate 180 can be further improved.

[0252] In some embodiments, when the battery device 100 includes a base plate 160, the first interface 101 and the second interface 102 may be disposed on the base plate 160. That is, the inlet and outlet of the thermal management medium may be centrally located in the bottom region of the battery device 100.

[0253] By adopting the above arrangement, the overall spatial layout of the battery device 100 can be optimized. Compared with the scheme of setting the first interface 101 and the second interface 102 in the side wall area of ​​the battery device 100, the bottom arrangement can reduce the occupation of the lateral pipeline structure on the external space of the battery device 100, thereby improving the external compactness of the battery device 100.

[0254] Especially in applications where multiple battery devices 100 are arranged side-by-side or closely packed, if the interface is located on the side, it may cause interference between the interface and the pipeline, affecting the overall layout. However, placing the first interface 101 and the second interface 102 at the bottom can reduce the aforementioned interference risk and improve space utilization.

[0255] When the first interface 101 and the second interface 102 are used to transport external liquids of the ship 200, the bottom interface is usually arranged closer to the water area outside the hull, so the length of the connecting pipe can be shortened and the number of intermediate connecting structures and bends can be reduced.

[0256] This reduces the structural weight of the entire thermal management system, decreases assembly complexity, and lowers the risk of increased flow resistance, pressure drop, or leakage due to excessively long piping.

[0257] In some embodiments, a flow channel 183 may be provided inside the cold plate 180. The flow channel 183 can be used for the flow of the heating management medium and to achieve heat exchange with the cold plate 180.

[0258] Specifically, the flow channel 183 can be a serpentine flow channel, a bendable flow channel, a meandering flow channel, a tortuous flow channel, or other flow channel structures that extend the flow path. The two ends of the flow channel 183 can be connected to the inlet 181 and the outlet 182, respectively.

[0259] When a serpentine or zigzag flow channel is used, the flow path of the heat management medium inside the cold plate 180 is longer than that of a straight flow channel, which can increase the residence time of the heat management medium inside the cold plate 180 and increase the heat exchange area.

[0260] Meanwhile, the meandering flow path can also enhance fluid disturbance, reduce local flow dead zones, and improve the flow uniformity of the medium inside the cold plate 180, thereby improving the overall heat exchange efficiency.

[0261] This allows for more effective heat dissipation from the cell 140 during operation, resulting in a more uniform temperature distribution within the cell 140, reducing the risk of localized hot spots, and further improving the thermal management performance and operational safety of the battery device 100.

[0262] In other embodiments, the flow channel 183 may also be a parallel flow channel, a grid flow channel, a branch flow channel, or a multi-layer flow channel structure, and this application does not limit it in this regard.

[0263] In some embodiments, the battery device 100 may further include one or more sensors 103, which may be disposed within the housing space 150 for real-time monitoring of the internal operating status of the battery device 100.

[0264] Sensor 103 can be understood as a detection component used to sense changes in the internal physical and / or chemical parameters of the battery device 100. Since the battery device 100 in this application is structurally integrated with the hull 210 and serves as one of the load-bearing structures of the hull 210, the installation location of the battery device 100 may be relatively enclosed, making subsequent disassembly, maintenance, or manual inspection less convenient. Therefore, by setting up sensor 103, the internal environment of the containment space 150 can be continuously monitored, allowing for early-stage safety monitoring and enabling fault warning, anomaly identification, and risk control.

[0265] This can reduce the problems of insufficient manual inspection frequency, high maintenance difficulty, or delayed fault detection caused by limited installation space, and improve the safety capability of battery device 100.

[0266] In some embodiments, sensor 103 may include a temperature sensor, pressure sensor, smoke sensor, combustible gas sensor, toxic gas sensor, humidity sensor, current sensor, voltage sensor, or other detection elements suitable for condition monitoring.

[0267] For example, temperature sensors can be used to monitor the internal ambient temperature of the battery cell 140, module unit 190, cold plate 180, or containment space 150 to detect abnormal temperature rises. Pressure sensors can be used to monitor pressure changes within containment space 150 to determine if there is abnormal gas accumulation. Smoke sensors can be used to detect early signs of combustion. Combustible gas sensors can be used to detect the concentration of combustible gases released during thermal runaway. Toxic gas sensors can be used to detect harmful gases produced by abnormal decomposition.

[0268] By setting up the aforementioned sensor 103, the ability to monitor abnormal states inside the battery device 100 can be improved, thereby enhancing the overall safety monitoring performance.

[0269] In some embodiments, the battery device 100 may further include an explosion-proof valve 104. The explosion-proof valve 104 may be disposed on the cover 130 or in other locations suitable for pressure relief.

[0270] The explosion-proof valve 104 can be understood as a safety structure used to automatically relieve pressure when the internal pressure rises abnormally. When the internal pressure of the containment space 150 exceeds a preset threshold, the explosion-proof valve 104 can automatically open to release the accumulated gas and pressure, thereby reducing the risk of the battery device 100 exploding, structurally breaking, or drastic failure.

[0271] In some embodiments, the explosion-proof valve 104 may be a one-way pressure relief structure to reduce the risk of external media flowing back into the containment space 150.

[0272] In some embodiments, the battery device 100 may further include a battery management system acquisition board 105. The battery management system acquisition board 105 may be disposed within the receiving space 150 and electrically connected to the battery cell 140.

[0273] The battery management system acquisition board 105 can be understood as the front-end acquisition circuit board in the battery management system (BMS). It can be connected to each cell 140 through sampling harnesses, connecting wires or other conductive structures to acquire the operating parameters of the cell 140.

[0274] For example, the battery management system acquisition board 105 can acquire the voltage, temperature, current, status information or other operating parameters of the battery cell 140, and transmit the acquired data to the main control unit of the battery management system for status analysis, anomaly judgment, alarm control or thermal management control.

[0275] In some embodiments, the battery management system acquisition board 105 can also perform equalization control functions. For example, it can equalize and adjust the voltage difference between different cells 140 to improve the consistency and lifespan of the battery device 100.

[0276] In some embodiments, the battery device 100 may further include a fire extinguishing medium interface 106. The fire extinguishing medium interface 106 may be disposed on the cover 130 or in other locations suitable for rapid connection to a fire extinguishing system.

[0277] Because thermal runaway inside the battery device 100 has the characteristics of rapid propagation and high risk, by setting up a fire extinguishing medium interface 106, fire extinguishing medium can be quickly injected into the containment space 150 after detecting a fire, abnormal high temperature or thermal runaway alarm signal, so as to achieve fire suppression or thermal runaway control.

[0278] The extinguishing medium can be a gaseous extinguishing medium, a liquid extinguishing medium, atomized extinguishing medium, or other media suitable for battery-based fire suppression. For example, it can be an inert gas, carbon dioxide, perfluorohexanone, fine water mist, or other extinguishing media.

[0279] By setting the fire extinguishing medium interface 106, the fire extinguishing response time can be shortened, the emergency response capability under abnormal working conditions can be improved, thereby improving the safety performance of the battery device 100.

[0280] In some embodiments, the battery device 100 may further include an access port 107 and / or an electrical interface 108. The access port 107 and / or the electrical interface 108 may be provided on the cover 130.

[0281] The access port 107 can be understood as an openable structure that communicates with the interior of the housing space 150. The access port 107 can be opened during maintenance, inspection, replacement or troubleshooting to allow maintenance personnel, inspection tools or repair equipment to enter the housing space 150 to inspect and maintain the battery cell 140, cold plate 180, battery management system acquisition board 105, sensor 103 or other internal components.

[0282] Electrical interface 108 can be understood as an interface structure used for electrical connection. Electrical interface 108 can serve as a power output interface, control signal interface, communication interface, or sampling interface to realize the electrical connection between battery device 100 and external equipment of ship 200.

[0283] For example, electrical interface 108 can be used to connect to a propulsion system, power distribution system, control system, monitoring system, or external charging equipment.

[0284] By centrally arranging functional interfaces such as the inspection port 107, electrical interface 108, explosion-proof valve 104, and fire extinguishing medium interface 106 on the cover 130, an integrated interface layout can be achieved. This not only facilitates unified maintenance and centralized operation, but also reduces the need for additional openings on the first frame 110, second frame 120, or base plate 160, thereby mitigating the adverse effects on the overall structural strength and sealing performance of the battery device 100.

[0285] Reference Figures 1 to 5 In some embodiments, this application also proposes a vessel 200. The vessel 200 may include a hull 210 and a battery device 100 as described in any of the above embodiments. The battery device 100 is disposed on the hull 210 and integrated into the structure of the hull 210.

[0286] In some embodiments, at least one first frame 110 extends longitudinally along the hull 210. The first frame 110 may serve as a keel 211, longitudinal girder, longitudinal stiffening beam, or other longitudinal load-bearing structure of the hull 210. At least one second frame 120 may extend transversely along the hull 210. The second frame 120 may serve as a rib 212, transverse girder, transverse stiffening beam, or other transverse load-bearing structure of the hull 210.

[0287] In other words, the battery device 100 in this application is not only used to provide energy storage and power supply functions, but can also directly constitute at least part of the load-bearing frame structure of the hull 210, thereby realizing the integrated design of the energy storage structure and the hull structure.

[0288] The above structure optimizes the traditional arrangement of battery devices and hull structures that are independently set up. Compared to solutions that require separate battery compartments, battery boxes, or additional support structures, the battery device 100 in this application can be directly integrated with the hull 210 structure, thereby reducing redundant structural design.

[0289] This reduces the need for dedicated space inside the hull 210 for battery systems, improves the utilization rate of the hull's internal space, and enhances the overall compactness and structural integration.

[0290] Since the battery device 100 can be arranged in the low load-bearing area of ​​the hull 210, such as near the keel 211 or the bottom structure area, the weight distribution of the ship 200 can be optimized, the overall center of gravity of the ship 200 can be lowered, and the navigation stability, anti-rolling ability and maneuverability can be improved.

[0291] Meanwhile, since the first frame 110 and the second frame 120 themselves participate in the overall stress as the hull load-bearing structure, when the ship 200 is subjected to wave impact, vibration load, collision load, heel load or structural torsional load, the external load can be transferred and dispersed through the frame structure of the battery device 100, thereby reducing the risk of local stress concentration and improving the overall structural reliability of the battery device 100 and the hull 210.

[0292] Furthermore, by integrating the battery unit 100 with the structure of the hull 210, the need for additional counterweight structures, independent support structures, and additional installation structures can be reduced, thereby reducing the overall weight of the vessel 200, increasing payload capacity, and contributing to improved range and energy efficiency.

[0293] In some embodiments, vessel 200 may be a vessel employing an electric propulsion system or a hybrid power system. For example, vessel 200 may be an electric speedboat, electric ferry, electric cruise ship, electric cargo ship, electric tugboat, electric fishing boat, patrol boat, unmanned vessel, floating work platform, or other vessel suitable for employing a battery energy storage system, which is not limited in this application.

[0294] Therefore, the ship 200 can possess all the technical effects brought about by the battery device 100 in the above embodiments, such as improving space utilization, reducing structural weight, optimizing weight distribution, improving structural strength, improving thermal management performance, and improving fire safety performance, etc., which will not be elaborated here.

[0295] In some embodiments, the hull 210 may have an outer plating 213 located on the side of the hull 210 and a bulkhead 214 located above the battery device 100. In some embodiments, among two or more first frames 110, the first frame 110 closest to the outer plating 213 may maintain a predetermined distance from the outer plating 213. This predetermined distance may be greater than or equal to 500 mm. By setting this distance, a buffer space can be formed between the battery device 100 and the outer plating 213 on the side of the hull 210.

[0296] When the vessel 200 is subjected to a lateral collision, compression, or external impact, the outer plate 213 can bear the external load first. Since there is a certain distance between the first frame 110 closest to the outer plate 213 and the outer plate 213, the external impact is not easily transmitted directly to the battery cell 140 inside the battery device 100. As a result, the risk of the battery cell 140 being squeezed, damaged, short-circuited, or thermally runaway due to a lateral collision can be reduced.

[0297] In some embodiments, a predetermined distance may be maintained between the cover 130 and the bulkhead 214. This predetermined distance may be greater than or equal to 150 mm. By setting this distance, a maintenance space, a heat dissipation space, or a safety buffer space can be formed on the upper side of the battery device 100.

[0298] For example, this spacing facilitates the operation and maintenance of the access ports 107, electrical interfaces 108, explosion-proof valves 104, or fire extinguishing medium interfaces 106 on the cover 130. This spacing also provides space for the depressurization, venting, wiring harness arrangement, or piping arrangement of the battery device 100.

[0299] When abnormal temperature rise, gas accumulation, or depressurization occurs inside the battery device 100, the distance between the cover 130 and the bulkhead 214 can reduce the risk of high-temperature gas or pressure acting directly on the bulkhead 214, thereby improving the safety of the ship 200.

[0300] In some embodiments, the distance between the first frame 110 closest to the outer plate 213 and the outer plate 213 is greater than or equal to 500 mm, and the distance between the cover 130 and the bulkhead 214 is greater than or equal to 150 mm. Either one of these can be set, or both can be set simultaneously.

[0301] By setting the distance as described above, the safety margin of the battery device 100 in terms of collision, protection, maintenance, heat dissipation and pressure relief can be improved while ensuring the structural integration of the battery device 100 with the hull 210, thereby enhancing the overall safety and reliability of the ship 200.

[0302] In this embodiment, by precisely defining the spatial layout between the battery device 100 and the internal structure of the ship 200, the aim is to improve the safety and reliability of the system in complex marine environments.

[0303] By setting the distance between the first frame 110 closest to the outer plate 213 among two or more first frames 110 and the outer plate 213 to be greater than or equal to 500 mm, this distance not only meets the specifications of CCS (China Classification Society), but also forms an effective physical crumple zone. In the extreme case of a side collision, a space of 500 mm or more can act as an energy-absorbing buffer, preventing the deformation of the outer plate from directly compressing the battery device 100 and reducing the risk of thermal runaway. In large ocean-going vessels, this value can be extended to 800 mm to 1000 mm to accommodate the access space of large maintenance equipment.

[0304] Setting the distance between the cover 130 and the bulkhead 214 to 150mm or more ensures good airflow between the battery unit and the bulkhead, effectively preventing heat buildup in the confined space and optimizing the passive cooling environment of the battery system. The 150mm gap effectively prevents condensate from dripping directly from the bulkhead or seeping into the cover's sealing area, reducing the risk of electrochemical corrosion and providing necessary visual clearance for subsequent bulkhead coating inspection. Considering ease of maintenance, this distance can be further optimized to 300mm to 350mm, significantly improving the efficiency of daily inspections.

[0305] The selection of the aforementioned values ​​strictly adheres to CCS classification society standards, ensuring the safety and compliance of the battery device in a marine environment. Through this scientifically set spacing, this application significantly improves the overall safety of ship navigation while ensuring the stable operation of the electric propulsion system.

[0306] In some embodiments, the vessel 200 may include a plurality of battery devices 100. The plurality of battery devices 100 are arranged side by side along the transverse direction of the hull 210. That is, the plurality of battery devices 100 may be arranged side by side in the width direction of the hull 210.

[0307] By employing the above arrangement, the weight of the battery unit 100 can be more evenly distributed laterally on the vessel 200, thereby reducing the risk of the vessel 200 listing due to excessive weight on one side. This helps improve the lateral stability, smoothness of navigation, and maneuverability of the vessel 200.

[0308] In some embodiments, the plurality of battery devices 100 may be arranged symmetrically about the longitudinal centerline of the hull 210. This can further improve the port-to-port weight balance of the vessel 200, reduce eccentric loading, and improve the stability of the vessel 200 when stationary, starting, turning, or subjected to wave impact.

[0309] In some embodiments, the battery device 100 may be provided with a cold plate 180, a first interface 101, and a second interface 102. The first interface 101 may communicate with the outside of the hull 210 for introducing external liquid into the battery device 100. The second interface 102 may communicate with the outside of the hull 210 for discharging external liquid that has flowed through the battery device 100 to the outside of the hull 210.

[0310] The external liquid can be a natural body of water in the waters where the ship is located. For example, the external liquid can be seawater, river water, lake water, or other external water bodies that can be used for heat exchange.

[0311] During use, the external liquid serves as a thermal management medium, flowing through the cold plate 180 to manage the thermal properties of components such as the battery cell 140. For example, the external liquid can enter the cold plate 180 through the first interface 101, exchange heat with components such as the battery cell 140 in the battery device 100 through the cold plate 180, and then be discharged through the second interface 102.

[0312] By utilizing an external liquid as the heat management medium, the intermediate coolant circulation, secondary heat exchangers, or complex piping structures in traditional heat management systems can be reduced, thereby simplifying the cooling system's structure. This can reduce system weight, manufacturing costs, and maintenance costs.

[0313] Since the external liquid originates from the waters where the vessel 200 is located, there is no need to purchase, store, or replenish coolant, thus reducing operating costs and improving the ease of use of the battery device 100.

[0314] Furthermore, the external liquid has a large heat capacity, which can carry away the heat generated during the operation of the battery device 100. By setting the first interface 101 and the second interface 102, inflow and outflow paths for the external liquid can be formed, thereby improving the heat dissipation efficiency of the battery device 100, reducing the risk of overheating of the cell 140, and helping to improve the safety and service life of the battery device 100.

[0315] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with this embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0316] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery device, characterized in that, The battery device is used in a ship, and the battery device includes: Two or more first frames, each first frame being capable of serving as the keel or girder of the vessel, and the two or more first frames being arranged at intervals along a first direction; Two or more second frames, which can be used as ribs of the ship, are arranged at intervals along a second direction, the first direction being different from the second direction, and the first and second frames are staggered to form a plurality of receiving spaces, at least two of the receiving spaces being separated by the first or the second frame; A cover, connected to the first frame and the second frame, is used to cover at least one opening of the receiving space; Multiple battery cells are arranged within the accommodating space.

2. The battery device according to claim 1, characterized in that, The battery device also includes: The base plate is connected to the first frame and the second frame. The base plate and the cover are spaced apart and correspondingly arranged. The accommodating space is located between the base plate and the cover.

3. The battery device according to claim 1 or 2, characterized in that, The first frame is provided with at least one reinforcing rib.

4. The battery device according to claim 3, characterized in that, The reinforcing ribs are disposed on the surface of the first frame on the side opposite to the receiving space; and / or The reinforcing rib includes at least one first rib and a plurality of second ribs. The length direction of the first rib is arranged along the second direction, and the plurality of second ribs are arranged at intervals along the second direction, with the plurality of second ribs interspersed with the first rib.

5. The battery device according to claim 1 or 2, characterized in that, The battery device also includes: One or more fireproof partitions are disposed within the receiving space and divide the receiving space into two or more compartments, wherein one or more of the battery cells are contained within the compartments.

6. The battery device according to claim 5, characterized in that, The battery device has multiple module units, each module unit containing one or more of the battery cells, and the fireproof partition is located between adjacent module units to separate them. and / or The accommodating space is divided by the fireproof partition into two or more compartments arranged along the first direction; and / or The first or second frame has a slot on its surface facing the receiving space, and the end of the fireproof partition extends into the slot.

7. The battery device according to claim 1 or 2, characterized in that, The battery device also includes: A cold plate is disposed within the accommodating space and is thermally connected to the battery cell. The cold plate is provided with an inlet and an outlet. The battery device also includes a first interface for accessing the thermal management medium and a second interface for discharging the thermal management medium. The first interface is connected to the inlet, and the second interface is connected to the outlet.

8. The battery device according to claim 7, characterized in that, In the case where the battery device includes a base plate, the cold plate is connected to the first frame, the second frame, or the base plate via a plug-in locking structure; and / or In the case where the battery device includes a base plate, the first interface and the second interface are disposed on the base plate; and / or The cold plate is provided with a serpentine flow channel or a bent flow channel, and the two ends of the serpentine flow channel or the bent flow channel are respectively connected to the inlet and the outlet.

9. The battery device according to claim 1 or 2, characterized in that, The battery device also includes: One or more sensors are disposed within the receiving space, and the one or more said sensors are selected from at least one of temperature sensors, smoke sensors, and combustible gas sensors; and / or An explosion-proof valve is provided on the cover; and / or The battery management system acquisition board is disposed within the accommodating space and is electrically connected to the battery cell; and / or The extinguishing medium interface is located on the cover; and / or An access port and / or electrical interface are provided on the cover.

10. A ship, characterized in that, include: hull; The battery device as claimed in any one of claims 1 to 9 is provided on the hull, wherein at least one first frame extends longitudinally along the hull to serve as the keel or girder of the hull, and at least one second frame extends transversely along the hull to serve as the rib of the hull.

11. The ship according to claim 10, characterized in that, The hull has an outer plating located on the side of the hull and a bulkhead located on the upper side of the battery device; The distance between the first frame closest to the outer plate among two or more first frames and the outer plate is greater than or equal to 500 mm; and / or The distance between the cover and the bulkhead is greater than or equal to 150 mm.

12. The vessel according to claim 10 or 11, characterized in that, The vessel includes a plurality of the battery devices, which are arranged side by side along the hull.

13. The vessel according to claim 10 or 11, characterized in that, In the case where the battery device includes a cold plate, a first interface, and a second interface, the first interface is connected to the outside of the hull for introducing external liquid, which serves as a thermal management medium and flows through the cold plate. The second interface is connected to the outside of the hull for discharging the external liquid.

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