Battery, battery manufacturing method and electrical device

Abstract

Disclosed are a battery (100), a battery manufacturing method and an electrical device. The battery (100) comprises a first layer of battery cells (10), a second layer of battery cells (20), and a frame (50). The first layer of battery cells (10) and the second layer of battery cells (20) are stacked in a first direction (Z). In the first direction (Z), at least part of the frame (50) is located between the first layer of battery cells (10) and the second layer of battery cells (20). The first layer of battery cells (10) and the second layer of battery cells (20) are both connected to the frame (50), and the frame (50) is used for simultaneously bearing the first layer of battery cells (10) and the second layer of battery cells (20). The space utilization rate of the battery (100) in the first direction (Z) can be improved.

Description

Battery, battery manufacturing method and electric device Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application CN202410636043.2, filed on May 21, 2024, entitled “Battery, battery manufacturing method and electric device”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of batteries, in particular to a battery, a battery manufacturing method and an electric device. BACKGROUND

[0003] With the development of new energy technology, batteries are increasingly widely used. Batteries have high energy density, high safety, long service life and green environmental protection to the society, and have been widely used in passenger cars, commercial vehicles, electric bicycles, heavy trucks, energy storage facilities, battery replacement stations, engineering manufacturing, intelligent instruments and other aspects, and also promote the development and research of communication terminals, medical instruments, energy development and other aspects.

[0004] A battery usually includes a plurality of battery monomers. In the case of limited battery use space, how to optimize the layout of the plurality of battery monomers and improve the battery space utilization is a problem to be solved in battery technology. SUMMARY

[0005] The embodiments of the present application provide a battery, a battery manufacturing method and an electric device, which can effectively improve the battery space utilization.

[0006] In a first aspect, the embodiments of the present application provide a battery, which includes a first layer of battery monomers, a second layer of battery monomers and a support. The first layer of battery monomers and the second layer of battery monomers are arranged in a first direction in a stacked manner. At least a part of the support is located between the first layer of battery monomers and the second layer of battery monomers in the first direction.

[0007] The first layer of battery monomers and the second layer of battery monomers are connected to the support, and the support is used to simultaneously support the first layer of battery monomers and the second layer of battery monomers.

[0008] In the above technical solution, on the one hand, the first layer of battery monomers and the second layer of battery monomers are arranged in a first direction in a stacked manner, which optimizes the layout of the battery monomers and improves the space utilization of the battery in the first direction. On the other hand, the first layer of battery monomers and the second layer of battery monomers share one support, thereby simplifying the number of support components and improving the energy density of the battery.

[0009] In some embodiments, the battery further comprises a first gel body, the first layer of battery cells being connected to the support through the first gel body; and / or, the battery further comprises a second gel body, the second layer of battery cells being connected to the support through the second gel body.

[0010] In the above technical solution, the first gel body facilitates the connection of the first layer of battery cells to the support, reducing the assembly difficulty of the first layer of battery cells to the support. The second gel body facilitates the connection of the second layer of battery cells to the support, reducing the assembly difficulty of the second layer of battery cells to the support.

[0011] In some embodiments, the first layer of battery cells comprises a plurality of first battery cells, and along the first direction, an end of each first battery cell away from the second layer of battery cells is provided with a first electrode terminal; the second layer of battery cells comprises a plurality of second battery cells, and along the first direction, an end of each second battery cell away from the first layer of battery cells is provided with a second electrode terminal.

[0012] In the above technical solution, by providing the first electrode terminal at the end of the first battery cell away from the second layer of battery cells and the second electrode terminal at the end of the second battery cell away from the first layer of battery cells, the first electrode terminal and the second electrode terminal are far apart, which can reduce the risk of short circuit between the first layer of battery cells and the second layer of battery cells and improve the electrical reliability.

[0013] In some embodiments, the support comprises a support wall and a pair of side walls, along the first direction, the support wall is located between the first layer of battery cells and the second layer of battery cells, and the first layer of battery cells and the second layer of battery cells are both connected to the support wall; the pair of side walls are spaced apart along a second direction, and the support wall connects the pair of side walls, and the second direction is perpendicular to the first direction.

[0014] In the above technical solution, a support with simple structure and high structural strength can be obtained.

[0015] In some embodiments, the inside of the support wall is formed with a first flow channel for accommodating a heat exchange medium.

[0016] In the above technical solution, the inside of the support wall is formed with a first flow channel for accommodating a heat exchange medium, and the temperature of the first layer of battery cells and the second layer of battery cells is adjusted through the support wall, which can improve the reliability of the battery.

[0017] In some embodiments, the support wall has a first surface and a second surface oppositely arranged along a thickness direction of the support wall, two ends of the side wall respectively extend beyond the first surface and the second surface, and the thickness direction of the support wall is parallel to the first direction; along the second direction, the first layer of battery cells and the second layer of battery cells are located between a pair of the side walls.

[0018] In the above technical solution, the two ends of the side wall respectively extend beyond the first surface and the second surface, a support with high structural strength can be obtained, and the first layer of battery cells and the second layer of battery cells are both located between a pair of side walls, which can improve the stability of the battery.

[0019] In some embodiments, the first layer of battery cells is connected to a pair of the side walls on both sides along the second direction, and the second layer of battery cells is connected to a pair of the side walls on both sides along the second direction.

[0020] In the above technical solution, the first layer of battery cells is connected to a pair of side walls on both sides along the second direction, which improves the connection stability of the first layer of battery cells and the support. The second layer of battery cells is connected to a pair of side walls on both sides along the second direction, which improves the connection stability of the second layer of battery cells and the support.

[0021] In some embodiments, the side wall has a second flow channel formed inside to accommodate a heat exchange medium.

[0022] In the above technical solution, the second flow channel is formed inside the side wall to accommodate the heat exchange medium, and the temperature of the first layer of battery cells or the second layer of battery cells is adjusted through the side wall, which can improve the reliability of the battery.

[0023] In some embodiments, the support wall and the side wall are integrally formed or welded.

[0024] In the above technical solution, the support wall and the side wall are integrally formed, which can obtain a support with high structural strength. The support wall and the side wall are welded, which can reduce the difficulty of manufacturing the support.

[0025] In some embodiments, the first layer of battery cells includes a first battery module and a second battery module arranged at intervals along the second direction.

[0026] The support further includes a first partition beam arranged on the support wall and located between the first battery module and the second battery module.

[0027] In the above technical solution, the first partition beam can improve the installation stability of the first battery module and the second battery module.

[0028] In some embodiments, the first battery module and the second battery module are both connected to the first partition beam.

[0029] In the technical solution, the first battery module and the second battery module are connected to the first partition beam, and the connection stability of the first battery module and the second battery module to the support is high.

[0030] In some embodiments, the first partition beam is internally formed with a third flow channel for accommodating a heat exchange medium.

[0031] In the technical solution, the first partition beam is internally formed with a third flow channel for accommodating a heat exchange medium, and the temperature of the first battery module and the second battery module is adjusted through the first partition beam, thereby improving the reliability of the battery.

[0032] In some embodiments, the first partition beam is integrally formed with the support wall or is welded to the support wall.

[0033] In the technical solution, the first partition beam is integrally formed with the support wall, and the support with high structural strength is obtained. The first partition beam is welded to the support wall, and the preparation difficulty of the support is reduced.

[0034] In some embodiments, the second layer of battery monomers includes a third battery module and a fourth battery module arranged at intervals in the second direction.

[0035] The support further includes a second partition beam arranged on the support wall and located between the third battery module and the fourth battery module.

[0036] In the technical solution, the second partition beam can improve the installation stability of the third battery module and the fourth battery module.

[0037] In some embodiments, the third battery module and the fourth battery module are connected to the second partition beam.

[0038] In the technical solution, the third battery module and the fourth battery module are connected to the second partition beam, and the connection stability of the third battery module and the fourth battery module to the support is high.

[0039] In some embodiments, the second partition beam is internally formed with a fourth flow channel for accommodating a heat exchange medium.

[0040] In the technical solution, the second partition beam is internally formed with a fourth flow channel for accommodating a heat exchange medium, and the temperature of the third battery module and the fourth battery module is adjusted through the second partition beam, thereby improving the reliability of the battery.

[0041] In some embodiments, the second partition beam is integrally formed with the support wall or is welded to the support wall.

[0042] In the technical solution, the second partition beam and the support wall are integrally formed, so that the support has high structural strength. The second partition beam and the support wall are welded, so that the preparation difficulty of the support is reduced.

[0043] In some embodiments, the battery further comprises a first cover and a second cover: the first cover is connected to the pair of side walls; the second cover is connected to the pair of side walls; the second cover is arranged opposite to the first cover along the first direction; the support is located between the first cover and the second cover; the first layer of battery monomers is located between the first cover and the support wall; and the second layer of battery monomers is located between the second cover and the support wall.

[0044] In the technical solution, the first layer of battery monomers is located between the first cover and the support wall, so that the first cover can reduce the influence of external foreign matters on the first layer of battery monomers, thereby improving the reliability of the battery. The second layer of battery monomers is located between the second cover and the support wall, so that the second cover can reduce the influence of external foreign matters on the second layer of battery monomers, thereby improving the reliability of the battery.

[0045] In some embodiments, the battery further comprises a pair of end walls: the pair of end walls are spaced apart along a third direction; and the support wall is located between the pair of end walls; each end wall is connected to the pair of side walls at two ends thereof; and the third direction, the second direction and the first direction are perpendicular to each other.

[0046] The first cover is further connected to the pair of end walls, and the second cover is further connected to the pair of end walls.

[0047] In the technical solution, the pair of end walls and the support form a frame for placing the first layer of battery monomers and the second layer of battery monomers, so that the battery has higher structural strength.

[0048] In some embodiments, the first cover, the second cover, the pair of end walls and the pair of side walls enclose a containing cavity.

[0049] The support wall divides the containing cavity into a first cavity and a second cavity; the first layer of battery monomers is contained in the first cavity; and the second layer of battery monomers is contained in the second cavity.

[0050] In the technical solution, the first cover, the support and the pair of end walls define the first cavity, which is an internal environment for containing the first layer of battery monomers. The second cover, the support and the pair of end walls define the second cavity, which is an internal environment for containing the second layer of battery monomers.

[0051] In some embodiments, an inner portion of the bracket is formed with a flow channel for accommodating a heat exchange medium, and the bracket is configured to adjust the temperature of the first layer of battery cells and the second layer of battery cells.

[0052] In some embodiments, the first direction is parallel to a direction of gravity.

[0053] In a second aspect, the embodiments of the present application provide a power consuming device, which comprises the battery as described above, and the battery is configured to supply power to the power consuming device.

[0054] In a third aspect, the embodiments of the present application provide a battery preparation method, which comprises:

[0055] providing a bracket, the bracket having a first surface and a second surface opposite to each other along a thickness direction of the bracket;

[0056] connecting a first layer of battery cells to the first surface with the first surface of the bracket facing upward;

[0057] turning over the bracket so that the second surface of the bracket faces upward;

[0058] connecting a second layer of battery cells to the second surface.

[0059] In the above technical solution, the first layer of battery cells is connected to the first surface with the first surface of the bracket facing upward, the bracket is turned over so that the second surface faces upward, and the second layer of battery cells is connected to the second surface of the bracket. Each layer of battery cells is connected to the bracket from above for assembly, which reduces the assembly difficulty of the battery with double layers of battery cells and improves the assembly efficiency of the battery.

[0060] In some embodiments, the connecting of the first layer of battery cells to the first surface comprises:

[0061] connecting the first layer of battery cells to the first surface with electrode terminals of the first layer of battery cells facing upward;

[0062] the connecting of the second layer of battery cells to the second surface comprises:

[0063] connecting the second layer of battery cells to the second surface with electrode terminals of the second layer of battery cells facing upward.

[0064] In some embodiments, the connecting of the first layer of battery cells to the first surface comprises:

[0065] providing a gel on the first surface;

[0066] connecting the first layer of battery cells to the first surface through the gel.

[0067] In some embodiments, the connecting the second layer of battery cells to the second surface comprises:

[0068] providing a gel on the second surface;

[0069] connecting the second layer of battery cells to the second surface through the gel.

[0070] In some embodiments, after connecting the first layer of battery cells to the first surface, and before flipping the support, the battery manufacturing method further comprises:

[0071] providing a first cover and connecting the first cover to the support, such that the first layer of battery cells is located between the first cover and the first surface.

[0072] In some embodiments, after connecting the second layer of battery cells to the second surface, the battery manufacturing method further comprises:

[0073] providing a second cover and connecting the second cover to the support, such that the second layer of battery cells is located between the second cover and the second surface.

[0074] The above description is only a summary of the technical solutions of the present application. In order to enable one skilled in the art to better understand the technical means of the present application, the contents of the specification can be implemented, and in order to enable the above and other purposes, features and advantages of the present application to be more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0075] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0076] Fig. 1 is a structural schematic diagram of a vehicle according to some embodiments of the present application;

[0077] Fig. 2 is an exploded schematic diagram of a battery according to some embodiments of the present application;

[0078] Fig. 3 is a cross-sectional view of a battery according to some embodiments of the present application;

[0079] Fig. 4 is a cross-sectional view of a battery according to some other embodiments of the present application;

[0080] Fig. 5 is a structural schematic diagram of a support according to some embodiments of the present application;

[0081] Fig. 6 is a cross-sectional view of a battery according to some other embodiments of the present application;

[0082] FIG. 7 is a structural schematic diagram of a bracket according to some embodiments of the present application;

[0083] FIG. 8 is an exploded schematic diagram of a battery according to some embodiments of the present application;

[0084] FIG. 9 is a sectional view of a battery according to some embodiments of the present application;

[0085] FIG. 10 is a structural schematic diagram of a bracket and an end wall according to some embodiments of the present application;

[0086] FIG. 11 is an exploded schematic diagram of a first cover according to some embodiments of the present application;

[0087] FIG. 12 is a flowchart of a method for manufacturing a battery according to some embodiments of the present application;

[0088] FIG. 13 is a flowchart of a method for manufacturing a battery according to some embodiments of the present application.

[0089] In the drawings, the drawings are not necessarily drawn according to the actual proportions.

[0090] Label Description: 10 - first layer of battery cells; 11 - first battery module; 12 - second battery module; 13 - fifth battery module; 14 - sixth battery module; 101 - first battery cell; 1011 - first electrode terminal; 20 - second layer of battery cells; 21 - third battery module; 22 - fourth battery module; 23 - seventh battery module; 24 - eighth battery module; 201 - second battery cell; 2011 - second electrode terminal; 30 - first cover; 31 - first cover body; 32 - first inner layer plate; 33 - first buffer layer; 34 - first outer flange; 40 - second cover; 41 - second outer flange; 50 - bracket; 51 - side wall; 511 - second flow channel; 52 - support wall; 521 - first surface; 522 - second surface; 523 - first flow channel; 53 - first partition beam; 531 - third flow channel; 54 - second partition beam; 541 - fourth flow channel; 55 - third partition beam; 60 - first adhesive; 70 - second adhesive; 80 - end wall; 81 - third outer flange; 82 - fourth outer flange; 91 - first cavity; 92 - second cavity; 1000 - vehicle; 100 - battery; 200 - motor; 300 - controller; Z - first direction; Y - second direction; X - third direction. DETAILED DESCRIPTION

[0091] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0092] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second", and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0093] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0094] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] In the description of the present application, it should be noted that unless otherwise specified, the meaning of "multiple" is more than two; the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error.

[0096] The term "and / or" in the present application is merely used to describe an associated relationship between associated objects, and can represent three relationships, for example, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0097] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0098] "Multiple" appearing in the present application means two or more (including two).

[0099] In the present application, the battery cell can include, but is not limited to, a lithium ion secondary battery, a lithium ion primary battery, a lithium-sulfur battery, a sodium lithium ion battery, a sodium ion battery, or a magnesium ion battery, etc. The battery cell includes, but is not limited to, a cylinder, a flat body, a cuboid, or other shapes, etc. The battery cell generally includes cylindrical battery cells, square battery cells, and soft package battery cells, etc. in the form of packaging. The battery cell can also be a blade battery.

[0100] Exemplarily, the battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator film. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work, and the metal ions (such as lithium ions) are embedded and extracted between the positive electrode and the negative electrode. The separator film is arranged between the positive electrode and the negative electrode, which can prevent the positive electrode sheet and the negative electrode sheet from short-circuiting, and at the same time can make the active ions pass through.

[0101] The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer is coated on the surface of the positive electrode current collector, and the positive electrode current collector without the positive electrode active material layer protrudes from the positive electrode current collector with the positive electrode active material layer, and the positive electrode current collector without the positive electrode active material layer serves as a positive electrode tab.

[0102] For example, the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium, or lithium manganate. The positive electrode current collector can be a metal foil or a composite current collector. For example, as the metal foil, aluminum with silver plating on the surface, stainless steel with silver plating on the surface, stainless steel, copper, aluminum, a carbon electrode, carbon, nickel, or titanium, etc. can be used. The composite current collector can include a polymer material base layer and a metal layer. The composite current collector can be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material base material (such as a base material of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0103] The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer coated on the surface of the negative electrode current collector. The negative electrode current collector without the negative electrode active material layer is protruded from the negative electrode current collector with the negative electrode active material layer, and the negative electrode current collector without the negative electrode active material layer serves as a negative electrode tab.

[0104] The negative electrode current collector can be a metal foil or a composite current collector. For example, as the metal foil, aluminum with silver plating on the surface, stainless steel with silver plating on the surface, stainless steel, copper, aluminum, a carbon electrode, carbon, nickel, or titanium, etc. can be used. The negative electrode active material can be carbon or silicon, etc.

[0105] To ensure that no fusing occurs when passing a large current, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together. The material of the separation film can be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly can be a roll type structure or a stacked type structure.

[0106] The battery referred to in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. The battery generally includes a box for packaging one or more battery cells. The box can reduce the influence of liquid or other foreign matters on the charging or discharging of the battery cells.

[0107] In some embodiments, the battery can be an energy storage device. The energy storage device includes an energy storage container, an energy storage cabinet, etc.

[0108] The development of battery technology needs to consider various design factors, such as performance parameters such as energy density, cycle life, discharge capacity, and charge / discharge rate. In addition, the space limitation of the battery in different application scenarios also needs to be considered.

[0109] Based on design requirements, the battery usually includes a plurality of battery monomers, the plurality of battery monomers are arranged in a single layer, the installation space in the height direction cannot be utilized, and the more the battery monomers, the larger the outer envelope size of the battery in the length and width directions, and in the scene where the installation space is narrow in length and width, the application of such a battery is limited.

[0110] The installation space refers to the space for installing the battery. The installation space can be part of a whole vehicle, and the installation space can also be part of a container, for example, the installation space is a battery compartment.

[0111] In view of this, in order to solve the problem that the plurality of battery monomers are arranged in a single layer and the battery does not utilize the height space, the embodiments of the present application provide a battery, which includes a first layer of battery monomers, a second layer of battery monomers, and a support. The first layer of battery monomers is arranged above the support, the second layer of battery monomers is arranged below the support, and the support is used to simultaneously support the first layer of battery monomers and the second layer of battery monomers. By arranging the plurality of battery monomers in two layers, the layout of the plurality of battery monomers is optimized, and the space utilization rate of the battery in the height direction is improved. By sharing the support by the first layer of battery monomers and the second layer of battery monomers, the number of support components is simplified, and the energy density of the battery is improved.

[0112] The technical solutions disclosed in the embodiments of the present application are applicable to but not limited to batteries and electric equipment using batteries.

[0113] The electric equipment can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, and an electric tool, etc. The vehicle can be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or an extended range automobile, etc. The spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, for example, a game console, an electric automobile toy, an electric ship toy, and an electric airplane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, and an electric planer, etc.

[0114] The following embodiments are described by taking the electric equipment as a vehicle for convenience of description.

[0115] Please refer to FIG. 1, which is a structural schematic diagram of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 is internally provided with a battery 100, which can be arranged at the bottom, the head, or the tail of the vehicle 1000. The battery 100 can be used for power supply of the vehicle 1000, for example, the battery 100 can be used as an operating power supply of the vehicle 1000.

[0116] The vehicle 1000 can further include a controller 300 and a motor 200, the controller 300 being configured to control the battery 100 to supply power to the motor 200, for example, for power requirements of the vehicle 1000 during startup, navigation, and travel.

[0117] In some embodiments of the present application, the battery 100 can not only serve as a power source for the operation of the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0118] FIG. 2 is an exploded view of the battery 100 according to some embodiments of the present application; and FIG. 3 is a cross-sectional view of the battery 100 according to some embodiments of the present application.

[0119] For ease of description, the height direction of the battery 100 is defined as the first direction Z, the width direction of the battery 100 is defined as the second direction Y, and the length direction of the battery 100 is defined as the third direction X.

[0120] In some embodiments, referring to FIGS. 2 and 3, the battery 100 according to some embodiments of the present application includes a first layer of battery cells 10, a second layer of battery cells 20, and a support 50. The first layer of battery cells 10 and the second layer of battery cells 20 are arranged in a stacked manner along the first direction Z. At least a portion of the support 50 is located between the first layer of battery cells 10 and the second layer of battery cells 20 along the first direction Z.

[0121] The first layer of battery cells 10 and the second layer of battery cells 20 are both connected to the support 50, and the support 50 is configured to simultaneously support the first layer of battery cells 10 and the second layer of battery cells 20.

[0122] The first layer of battery cells 10 can include a plurality of first battery cells 101, which can be connected in series, in parallel, or in a mixed manner. The mixed manner means that the plurality of first battery cells 101 are connected in both series and parallel. The plurality of first battery cells 101 can be arranged and fixed to form one or more battery 100 modules.

[0123] The second layer of battery cells 20 can include a plurality of second battery cells 201, which can be connected in series, in parallel, or in a mixed manner. The mixed manner means that the plurality of second battery cells 201 are connected in both series and parallel. The plurality of second battery cells 201 can be arranged and fixed to form one or more battery 100 modules.

[0124] Exemplarily, as shown in FIG. 2, the plurality of first battery monomers 101 are arranged and fixed to form four battery 100 modules, which are respectively a first battery module 11, a second battery module 12, a fifth battery module 13 and a sixth battery module 14. The plurality of second battery monomers 201 are arranged and fixed to form four battery 100 modules, which are respectively a third battery module 21, a fourth battery module 22, a seventh battery module 23 and an eighth battery module 24.

[0125] In some embodiments, the battery 100 can further include a busbar component (not shown in the figure), and the plurality of first battery monomers 101 can be connected in series, in parallel or in a hybrid manner through the busbar component. The plurality of second battery monomers 201 can also be connected in series, in parallel or in a hybrid manner through the busbar component.

[0126] The busbar component can be a metal conductor, such as copper, iron, aluminum, steel, aluminum alloy, etc.

[0127] The first layer of battery monomers 10 and the second layer of battery monomers 20 are arranged in a first direction Z, which means that the first layer of battery monomers 10 and the second layer of battery monomers 20 are stacked along the direction of gravity. The first direction Z can be a direction parallel to the direction of gravity, or the first direction Z can be a direction having a certain angle with the direction of gravity. In some embodiments, when the first direction Z is regarded as a direction parallel to the direction of gravity, one of the first layer of monomers and the second layer of battery monomers 20 is located above the support 50, and the other is located below the support 50. Exemplarily, for the convenience of description, the plurality of battery 100 monomers located below the support 50 are defined as the first layer of battery monomers 10, and the plurality of battery 100 monomers located above the support 50 are defined as the second layer of battery monomers 20.

[0128] The support 50 is a component that carries and fixes the first layer of battery monomers 10 and the second layer of battery monomers 20. The support 50 carries the first layer of battery monomers 10 and the second layer of battery monomers 20, which means that the gravity of the first layer of battery monomers 10 and the second layer of battery monomers 20 is applied to the support 50, and the support 50 provides an acting force to overcome the gravity for the first layer of battery monomers 10 and the second layer of battery monomers 20. In some embodiments, a mounting part can be provided on the support 50, so as to facilitate the installation of the battery 100. For example, the support 50 is connected to the sheet metal of the vehicle 1000 through the mounting part, so as to install the battery 100. The mounting part includes but is not limited to angle steel, handle, sleeve, mounting hole and the like.

[0129] The support 50 can be partially located between the first layer of battery cells 10 and the second layer of battery cells 20, as shown in FIG. 2. The support 50 has an H-shaped structure, and the support 50 includes a support wall 52 and a pair of side walls 51. The support wall 52 is located between the first layer of battery cells 10 and the second layer of battery cells 20. In other embodiments, the support 50 can be entirely located between the first layer of battery cells 10 and the second layer of battery cells 20. For example, the support 50 has a flat plate shape, and a mounting portion can be provided on the side of the flat plate.

[0130] The material of the support 50 includes, but is not limited to, copper, iron, aluminum, and alloys thereof.

[0131] In the present embodiment, on the one hand, the first layer of battery cells 10 and the second layer of battery cells 20 are arranged in a stacked manner along the first direction Z, thereby optimizing the layout of the battery cells 100 and improving the space utilization of the battery 100 in the first direction Z. On the other hand, the first layer of battery cells 10 and the second layer of battery cells 20 share one support 50, thereby simplifying the number of support components and improving the energy density of the battery 100.

[0132] FIG. 4 is a cross-sectional view of the battery 100 according to some embodiments of the present application.

[0133] Referring to FIG. 4, in some embodiments, the battery 100 further includes a first adhesive 60. The first layer of battery cells 10 is connected to the support 50 by the first adhesive 60. In some embodiments, the battery 100 further includes a second adhesive 70. The second layer of battery cells 20 is connected to the support 50 by the second adhesive 70.

[0134] The first adhesive 60 and the second adhesive 70 can have the same or different materials. The materials of the first adhesive 60 and the second adhesive 70 include, but are not limited to, heat-conducting glue, resin, artificial rubber, or water glass, etc. Alternatively, the first adhesive 60 and the second adhesive 70 are both heat-conducting glue.

[0135] The first adhesive 60 facilitates the connection of the first layer of battery cells 10 to the support 50, thereby reducing the assembly difficulty of the first layer of battery cells 10 to the support 50. The second adhesive 70 facilitates the connection of the second layer of battery cells 20 to the support 50, thereby reducing the assembly difficulty of the second layer of battery cells 20 to the support 50.

[0136] In some embodiments, the first layer of battery cells 10 includes a plurality of first battery cells 101. Along the first direction Z, one end of each first battery cell 101, which is away from the second layer of battery cells 20, is provided with a first electrode terminal 1011. The second layer of battery cells 20 includes a plurality of second battery cells 201. Along the first direction Z, one end of each second battery cell 201, which is away from the first layer of battery cells 10, is provided with a second electrode terminal 2011.

[0137] In the embodiment where the first direction Z is regarded as the direction of gravity, the first electrode terminal 1011 faces downward, and the second electrode terminal 2011 faces upward.

[0138] The first electrode terminal 1011 is arranged at one end of the first battery monomer 101 away from the second layer of battery monomers 20, and the second electrode terminal 2011 is arranged at one end of the second battery monomer 201 away from the first layer of battery monomers 10, so that the first electrode terminal 1011 is far away from the second electrode terminal 2011, which can reduce the risk of short circuit between the first layer of battery monomers 10 and the second layer of battery monomers 20, and improve the electrical reliability.

[0139] Of course, in other embodiments, the first electrode terminal 1011 can also face sideways, and the second electrode terminal 2011 can also face sideways.

[0140] FIG. 5 is a structural schematic diagram of the bracket 50 according to some embodiments of the present application.

[0141] Referring to FIG. 5, and in combination with FIG. 4, in some embodiments, the bracket 50 includes a support wall 52 and a pair of side walls 51. Along the first direction Z, the support wall 52 is located between the first layer of battery monomers 10 and the second layer of battery monomers 20, and the first layer of battery monomers 10 and the second layer of battery monomers 20 are both connected to the support wall 52. The pair of side walls 51 are arranged at intervals along the second direction Y, and the support wall 52 connects the pair of side walls 51. The second direction Y is perpendicular to the first direction Z. The bracket 50 with simple structure and high structural strength can be obtained. The first layer of battery monomers 10 and the second layer of battery monomers 20 are both connected to the support wall 52, and along the first direction Z, the first layer of battery monomers 10 and the second layer of battery monomers 20 are close to each other, which can optimize the size of the battery 100 along the first direction Z.

[0142] Exemplarily, the side wall 51 and the support wall 52 are both configured as rectangular plates.

[0143] The side wall 51 and the support wall 52 can be integrally formed, or can be separately configured and then fixedly connected. The materials of the side wall 51 and the support wall 52 can be the same or different.

[0144] Referring to FIG. 4, in some embodiments, the inside of the support wall 52 is formed with a first flow channel 523 for accommodating a heat exchange medium.

[0145] The heat exchange medium can also be referred to as a cooling medium or a cooling fluid. The heat exchange medium can be a liquid or a gas. The temperature adjustment means heating or cooling the plurality of battery monomers 100. Optionally, the fluid can be circulated to achieve better temperature adjustment effect. Optionally, the fluid can be water, a mixture of water and ethylene glycol, or air, etc.

[0146] The first flow channel 523 can be provided with one layer or multiple layers. Optionally, the first flow channel 523 is provided with two layers.

[0147] The inside of the support wall 52 forms the first flow channel 523 to accommodate the heat exchange medium, and the temperature of the first layer of battery monomers 10 and the second layer of battery monomers 20 is adjusted through the support wall 52, which can improve the reliability of the battery 100.

[0148] In some embodiments, the support wall 52 has a first surface 521 and a second surface 522 oppositely arranged along the thickness direction thereof, and the two ends of the side wall 51 respectively protrude beyond the first surface 521 and the second surface 522, and the thickness direction of the support wall 52 is parallel to the first direction Z. Along the second direction Y, the first layer of battery monomers 10 and the second layer of battery monomers 20 are located between the pair of side walls 51.

[0149] Understandably, in the present embodiment, along the first direction Z, one end of the side wall 51 protrudes from the first surface 521, and the other end of the side wall 51 protrudes from the second surface 522. Exemplarily, the support wall 52 and the side wall 51 are connected to form an H-shaped structure, along the first direction Z, the distance of the side wall 51 protruding beyond the first surface 521 is equal to the distance of the side wall 51 protruding beyond the second surface 522, and the support wall 52 is arranged in the middle.

[0150] In the present embodiment, the two ends of the side wall 51 respectively protrude beyond the first surface 521 and the second surface 522, which can obtain a bracket 50 with high structural strength, and the first layer of battery monomers 10 and the second layer of battery monomers 20 are both located between the pair of side walls 51, which can improve the stability of the battery 100.

[0151] FIG. 6 is a cross-sectional view of the battery 100 according to some other embodiments of the present application.

[0152] Referring to FIG. 12, in other embodiments, along the first direction Z, one end of the side wall 51 can only protrude beyond one of the first surface 521 and the second surface 522, and the other end does not protrude beyond the other one of the first surface 521 and the second surface 522. Exemplarily, one end of the side wall 51 protrudes beyond the first surface 521, and the other end does not protrude beyond the second surface 522, and the pair of side walls 51 and the support wall 52 are sequentially connected end to end to form an n-shaped structure. At this time, along the second direction Y, the two side walls 51 are respectively located on the two sides of the first layer of battery monomers 10, the first layer of battery monomers 10 is located between the pair of side walls 51, and the second layer of battery monomers 20 does not have the side wall 51 on the two sides thereof, and the second layer of battery monomers 20 is not between the pair of side walls 51.

[0153] In some embodiments, the first layer of battery monomers 10 is connected to the pair of side walls 51 on the two sides thereof along the second direction Y, and the second layer of battery monomers 20 is connected to the pair of side walls 51 on the two sides thereof along the second direction Y.

[0154] The first layer of battery cells 10 can be connected to the side wall 51 by abutting, bonding, welding, or the like.

[0155] The second layer of battery cells 20 can be connected to the side wall 51 by abutting, bonding, welding, or the like.

[0156] The first layer of battery cells 10 is connected to a pair of side walls 51 on both sides along the second direction Y, improving the connection stability of the first layer of battery cells 10 to the support 50. The second layer of battery cells 20 is connected to a pair of side walls 51 on both sides along the second direction Y, improving the connection stability of the second layer of battery cells 20 to the support 50.

[0157] It should be noted that in the embodiment where the first layer of battery cells 10 is connected to the support 50 by the first adhesive 60 and the second layer of battery cells 20 is connected to the support 50 by the second adhesive 70, at least a portion of the first adhesive 60 can be located between the first layer of battery cells 10 and the support wall 52 to connect the first layer of battery cells 10 to the support wall 52, and at least a portion of the first adhesive 60 can be located between the first layer of battery cells 10 and the side wall 51 to connect the first layer of battery cells 10 to the side wall 51. At least a portion of the second adhesive 70 can be located between the second layer of battery cells 20 and the support wall 52 to connect the second layer of battery cells 20 to the support wall 52, and at least a portion of the second adhesive 70 can be located between the second layer of battery cells 20 and the side wall 51 to connect the second layer of battery cells 20 to the side wall 51.

[0158] Referring to FIG. 4, in some embodiments, the inside of the side wall 51 is formed with a second flow channel 511 for accommodating a heat exchange medium.

[0159] In the case where the side wall 51 extends beyond the first surface 521, the accommodation of the heat exchange medium in the inside of the side wall 51 can adjust the temperature of the first layer of battery cells 10. In the case where the side wall 51 extends beyond the second surface 522, the accommodation of the heat exchange medium in the inside of the side wall 51 can adjust the temperature of the second layer of battery cells 20. In the case where the side wall 51 extends beyond the first surface 521 and the second surface 522 at both ends, respectively, the side wall 51 can simultaneously adjust the temperature of the first layer of battery cells 10 and the second layer of battery cells 20.

[0160] The formation of the second flow channel 511 in the inside of the side wall 51 to accommodate the heat exchange medium, and the adjustment of the temperature of the first layer of battery cells 10 or the second layer of battery cells 20 by the side wall 51, can improve the reliability of the battery 100.

[0161] In some embodiments, the support wall 52 and the side wall 51 are integrally formed. The integral forming process includes but is not limited to injection molding, extrusion molding, etc.

[0162] The integral forming of the support wall 52 and the side wall 51 can obtain a support 50 with high structural strength.

[0163] In some embodiments, the support wall 52 is integrally formed with the side wall 51. Alternatively, the support frame is welded to the side wall 51 by friction stir welding.

[0164] Welding the support wall 52 to the side wall 51 can reduce the difficulty of manufacturing the support frame 50.

[0165] Referring to FIGS. 5, 4 and 2, in some embodiments, the first layer of battery cells 10 includes a first battery module 11 and a second battery module 12 arranged at intervals along the second direction Y.

[0166] In some embodiments, the support frame 50 further includes a first partition beam 53 disposed on the support wall 52 and located between the first battery module 11 and the second battery module 12.

[0167] The first partition beam 53 is a structural member that assists in mounting the battery 100 module. The first partition beam 53 can be made of the same material as the support wall 52 or a different material.

[0168] By way of example, the first partition beam 53 protrudes from the first surface 521, extends along the third direction X, and is located between the fifth battery module 13 and the sixth battery module 14.

[0169] The first partition beam 53 can improve the mounting stability of the first battery module 11 and the second battery module 12.

[0170] In some embodiments, the first battery module 11 and the second battery module 12 are both connected to the first partition beam 53.

[0171] The first battery module 11 and the first partition beam 53 can be connected by adhesion, welding, or the like. The second battery module 12 and the second partition beam 54 can be connected by adhesion, welding, or the like.

[0172] The first battery module 11 and the second battery module 12 are both connected to the first partition beam 53, and the connection stability of the first battery module 11 and the second battery module 12 to the support frame 50 is high.

[0173] Referring to FIG. 4, in some embodiments, the first partition beam 53 has a third flow channel 531 formed therein to accommodate a heat exchange medium.

[0174] The third flow channel 531 can be provided in one layer or multiple layers. Alternatively, the third flow channel 531 is provided in two layers.

[0175] The first partition beam 53 has the third flow channel 531 formed therein to accommodate a heat exchange medium, and the temperature of the first battery module 11 and the second battery module 12 is adjusted by the first partition beam 53, thereby improving the reliability of the battery 100.

[0176] In some embodiments, the first partition beam 53 is integrally formed with the support wall 52. The integral forming process includes but is not limited to extrusion forming, injection molding.

[0177] The integral forming of the first partition beam 53 with the support wall 52 can obtain a bracket 50 with higher structural strength.

[0178] In some embodiments, the first partition beam 53 is welded with the support wall 52. Alternatively, the first partition beam 53 is welded with the support wall 52 by friction stir welding.

[0179] The welding of the first partition beam 53 with the support wall 52 can reduce the difficulty of manufacturing the bracket 50.

[0180] Referring to FIG. 5, FIG. 4 and FIG. 2, in some embodiments, the second layer of battery cells 20 includes a third battery module 21 and a fourth battery module 22 arranged at intervals along the second direction Y.

[0181] The bracket 50 further includes a second partition beam 54, which is arranged on the support wall 52 and located between the third battery module 21 and the fourth battery module 22. This improves the installation stability of the third battery module 21 and the fourth battery module 22.

[0182] The second partition beam 54 is a structural member for assisting in the installation of the battery 100 module. The material of the second partition beam 54 can be the same as or different from that of the support wall 52. The structure of the second partition beam 54 can be the same as or different from that of the first partition beam 53.

[0183] Exemplarily, the second partition beam 54 protrudes from the second surface 522, extends along the third direction X, and is located between the seventh battery module 23 and the eighth battery module 24.

[0184] In some embodiments, the third battery module 21 and the fourth battery module 22 are both connected to the second partition beam 54.

[0185] The third battery module 21 and the second partition beam 54 can be connected by adhesion, welding or the like. The fourth battery module 22 and the second partition beam 54 can be connected by adhesion, welding or the like.

[0186] The third battery module 21 and the fourth battery module 22 are both connected to the second partition beam 54, and the connection stability of the third battery module 21 and the fourth battery module 22 with the bracket 50 is higher.

[0187] It should be noted that in the embodiment in which the first layer of battery monomers 10 is connected to the support 50 by the first adhesive 60 and the second layer of battery monomers 20 is connected to the support 50 by the second adhesive 70: at least a portion of the first adhesive 60 can be located between the first battery module 11 and the first partition beam 53 to connect the first battery module 11 and the first partition beam 53, and at least a portion of the first adhesive 60 can be located between the second battery module 12 and the first partition beam 53 to connect the second battery module 12 and the first partition beam 53. At least a portion of the second adhesive 70 can be located between the third battery module 21 and the second partition beam 54 to connect the third battery module 21 and the second partition beam 54, and at least a portion of the second adhesive 70 can be located between the fourth battery module 22 and the second partition beam 54 to connect the fourth battery module 22 and the second partition beam 54.

[0188] Referring to FIG. 4, in some embodiments, the fourth flow channel 541 is formed in the interior of the second partition beam 54 to accommodate the heat exchange medium.

[0189] The fourth flow channel 541 can be provided with one or more layers. Optionally, the fourth flow channel 541 is provided with two layers.

[0190] The fourth flow channel 541 is formed in the interior of the second partition beam 54 to accommodate the heat exchange medium, and adjusting the temperature of the third battery module 21 and the fourth battery module 22 through the second partition beam 54 can improve the reliability of the battery 100.

[0191] In some embodiments, the second partition beam 54 is integrally formed with the support wall 52. The forming manner of the second partition beam 54 and the support wall 52 can refer to the forming manner of the first partition beam 53 and the support wall 52.

[0192] The second partition beam 54 and the support wall 52 are integrally formed, which can obtain a support 50 with high structural strength.

[0193] In some embodiments, the second partition beam 54 is welded with the support wall 52. The welding manner of the second partition beam 54 and the support wall 52 can refer to the welding manner of the first partition beam 53 and the support wall 52.

[0194] The second partition beam 54 and the support wall 52 are welded, which can reduce the difficulty of manufacturing the support 50.

[0195] FIG. 7 is a structural schematic view of a support 50 according to some embodiments of the present application.

[0196] Referring to FIG. 7 and FIG. 2, in some embodiments, the second layer of battery cells 20 includes a third battery module 21 and a seventh battery module 23, the third battery module 21 and the seventh battery module 23 are arranged at intervals along the third direction X, the support 50 can further include a third partition beam 55, the third partition beam 55 is connected to the support wall 52 and located between the third battery module 21 and the seventh battery module 23. For example, the second partition beam 54 and the third partition beam 55 are arranged in a cross shape, the second partition beam 54 and the third partition beam 55 divide the second surface 522 of the support wall 52 into four mounting areas, the four mounting areas are respectively used to place the third battery module 21, the fourth battery module 22, the seventh battery module 23 and the eighth battery module 24.

[0197] Similarly, in some embodiments, the support 50 can further include a fourth partition beam (not shown in the figure), the fourth partition beam is located between the fifth battery module 13 and the first battery module 11. The arrangement of the fourth partition beam can refer to the arrangement of the second partition beam 54 and the third partition beam 55, which will not be described here.

[0198] FIG. 8 is an exploded schematic view of the battery 100 according to some embodiments of the present application; FIG. 9 is a cross-sectional view of the battery 100 according to some other embodiments of the present application.

[0199] Referring to FIG. 8 and FIG. 9, in some embodiments, the battery 100 further includes a first cover 30 and a second cover 40. The first cover 30 is connected to the pair of side walls 51. The second cover 40 is connected to the pair of side walls 51; along the first direction Z, the second cover 40 is arranged opposite to the first cover 30, the support 50 is located between the first cover 30 and the second cover 40, the first layer of battery cells 10 is located between the first cover 30 and the support wall 52, and the second layer of battery cells 20 is located between the second cover 40 and the support wall 52.

[0200] In the case where the first direction Z is the direction of gravity, the first cover 30 can be understood as a lower cover or a bottom cover, and the second cover 40 can be understood as an upper cover or a top cover.

[0201] The first cover 30 can be configured as a one-side open cover structure, or the first cover 30 can be configured as a flat plate. The second cover 40 can be configured as a one-side open cover structure, or the second cover 40 can be configured as a flat plate. The structure and material of the first cover 30 and the second cover 40 can be the same or different.

[0202] Exemplarily, the first cover 30 is provided with a first outer flange 34, the first outer flange 34 is provided with a threaded hole, the side wall 51 is provided with a threaded hole, and the first cover 30 is connected with the side wall 51 by a bolt penetrating the threaded hole of the first outer flange 34 and the threaded hole of the side wall 51. The second cover 40 is provided with a second outer flange 41, the first outer flange 34 is provided with a threaded hole, the side wall 51 is provided with a threaded hole, and the first cover 30 is connected with the side wall 51 by a bolt penetrating the threaded hole of the first outer flange 34 and the threaded hole of the side wall 51.

[0203] In the embodiment, the first layer of battery monomers 10 is located between the first cover 30 and the support wall 52, and the first cover 30 can reduce the influence of external foreign matters on the first layer of battery monomers 10, thereby improving the reliability of the battery 100. The second layer of battery monomers 20 is located between the second cover 40 and the support wall 52, and the second cover 40 can reduce the influence of external foreign matters on the second layer of battery monomers 20, thereby improving the reliability of the battery 100.

[0204] In other embodiments, based on design needs, in the case of low sealing requirement of the battery 100, one of the first cover 30 and the second cover 40 can also not be provided, or both the first cover 30 and the second cover 40 are removed, at this time, the second layer of battery monomers 20 and the second layer of battery monomers 20 are exposed to the outside.

[0205] Referring to FIG. 10 and FIG. 8, in some embodiments, the battery 100 further comprises a pair of end walls 80, the pair of end walls 80 are arranged at intervals along a third direction X, the support wall 52 is located between the pair of end walls 80, and two ends of each end wall 80 are connected to a pair of side walls 51 respectively, the third direction X, the second direction Y and the first direction Z are perpendicular to each other. The first cover 30 is further connected to the pair of end walls 80, and the second cover 40 is further connected to the pair of end walls 80.

[0206] Understandably, the pair of end walls 80 and the pair of side walls 51 enclose the peripheral structure of the battery 100. Taking a rectangular battery 100 as an example, the side wall 51 and the end wall 80 can be constructed as a rectangular plate, and the side wall 51 and the end wall 80 are connected in sequence to form a rectangular frame.

[0207] In some embodiments, as shown in FIG. 10, along the first direction Z, the two ends of the end wall 80 form a third outer flange 81 and a fourth outer flange 82 respectively, the third outer flange 81 is used to connect with the first flange of the first cover 30, and the fourth outer flange 82 is used to connect with the second flange of the second cover 40.

[0208] The frame for placing the first layer of battery monomers 10 and the second layer of battery monomers 20 is formed by the pair of end walls 80 and the bracket 50, which can obtain a battery 100 with higher structural strength.

[0209] With reference back to FIGS. 9 and 10, in some embodiments, the first cover 30, the second cover 40, the pair of end walls 80 and the pair of side walls 51 enclose the accommodation cavity.

[0210] The support wall 52 divides the accommodation cavity into a first cavity 91 and a second cavity 92, the first layer of battery cells 10 is accommodated in the first cavity 91, and the second layer of battery cells 20 is accommodated in the second cavity 92.

[0211] It can be understood that the first cover 30, the second cover 40, the pair of end walls 80 and the pair of side walls 51 enclose a box to accommodate the first layer of battery cells 10 and the second layer of battery cells 20.

[0212] The first cavity 91 is between the first cover 30 and the support wall 52, and the second cavity 92 is between the second cover 40 and the support wall 52. In the first direction Z, the first cavity 91 and the second cavity 92 are respectively located on both sides of the support wall 52. The first cavity 91 and the second cavity 92 are two independent cavities, the first cavity 91 and the second cavity 92 are not connected, which can alleviate the influence of the thermal runaway of one cavity on the other cavity. Of course, in other embodiments, the first cavity 91 and the second cavity 92 can also be connected to each other to balance the temperature inside the battery 100.

[0213] In this embodiment, the first cavity 91 is defined by the first cover 30, the bracket 50 and the pair of end walls 80, and the first cavity 91 is the internal environment for accommodating the first layer of battery cells 10. The second cavity 92 is defined by the second cover 40, the bracket 50 and the pair of end walls 80, and the second cavity 92 is the internal environment for accommodating the second layer of battery cells 20.

[0214] It should be noted that, taking the battery 100 used in the vehicle 1000 as an example, since the bracket 50 bears the first layer of battery cells 10 and the second layer of battery cells 20, the battery 100 is mounted by being connected to the body panel or other structure of the vehicle 1000 through the bracket 50, and the first cover 30 and the second cover 40 can not bear the gravity of the first layer of battery cells 10 and the second layer of battery cells 20, that is, the first cover 30 and the second cover 40 can not be stressed, and the first cover 30 or the second cover 40 can not be in contact with other connection positions of the vehicle body, for example, the first cover 30 is suspended relative to the vehicle body.

[0215] In some embodiments, the bracket 50 has a flow channel for accommodating a heat exchange medium formed in the interior thereof, and the bracket 50 is configured to adjust the temperature of the first layer of battery cells 10 and the second layer of battery cells 20.

[0216] It should be noted that in the embodiment in which the battery 100 includes a pair of end walls 80, the liquid inlet and the liquid outlet (not shown in the figure) can be arranged on the end walls 80 to achieve the circulation of the heat exchange medium. The liquid inlet and the liquid outlet can be arranged on the same end wall 80, or the liquid inlet and the liquid outlet can be arranged on two different end walls 80.

[0217] In some embodiments, the first layer of battery cells 10 has a gap with the first cover 30. Understandably, the first layer of battery cells 10 is suspended relative to the first cover 30, the first layer of battery cells 10 is not in contact with the first cover 30, the first cover 30 does not directly bear the first layer of battery cells 10, and the first layer of battery cells 10 can be borne by other wall portions of the box body.

[0218] The first battery cell 101 is arranged in a gap with the first cover 30, which provides a buffer space for the deformation of the first cover 30. When the first cover 30 is subjected to external impact, the first cover 30 absorbs or disperses the external impact force, so that the external impact force is less or not applied to the first layer of battery cells 10, reducing the risk of damage to the first layer of battery cells 10 and improving the reliability of the battery 100.

[0219] FIG. 11 is an exploded view of the first cover 30 according to some embodiments of the present application.

[0220] Referring to FIGS. 4 and 5, in some embodiments, the first cover 30 includes a first cover body 31 and a first inner layer plate 32 arranged in layers, the first inner layer plate 32 is arranged on the side of the first cover body 31 facing the first layer of battery cells 10, and the first inner layer plate 32 has a gap with the first battery cell 101.

[0221] The first inner layer plate 32 can be configured as a circular, rectangular or irregular shape, etc. For example, the first inner layer plate 32 is configured as a rectangular plate. The first inner layer plate 32 can be made of insulating material to prevent short circuit between the first battery 100 cells, and also to protect the inside of the box from corrosion. In order to improve the structure of the box, a sheet metal stamping can also be used to set an insulating layer on the surface of the sheet metal to form the first inner layer plate 32.

[0222] The first cover body 31 is the peripheral structure of the first cover 30, and the first cover body 31 can be configured as a one-side open cover structure, or the first cover body 31 can be configured as a plate.

[0223] Since the first cover 30 is located at the bottom of the battery 100, the bottom protection needs to be considered, and therefore the first cover body 31 can adopt a crash-resistant structure or set reinforcing ribs to improve the structural strength of the first cover 30.

[0224] In some embodiments, the first cover body 31 can be stamped from a steel plate to improve the structural strength of the first cover 30.

[0225] In some embodiments, the first cover body 31 can be made of a lightweight alloy material, such as an aluminum alloy, to meet the lightweight design.

[0226] The first cover body 30 includes the first cover body 31 and the first inner layer plate 32, which can improve the maintainability of the first cover body 30.

[0227] In some embodiments, the first cover body 30 further includes a first buffer layer 33, which is arranged between the first cover body 31 and the first inner layer plate 32.

[0228] The first buffer layer 33 is a component with elasticity, and the first buffer layer 33 is a sandwich between the first cover body 31 and the first inner layer plate 32. The material of the first buffer layer 33 includes but is not limited to rubber, silicone, polyurethane, polyethylene, foam, etc. Optionally, the first buffer layer 33 is hard rubber, which has good elasticity, durability and buffering capacity.

[0229] The first buffer layer 33 can absorb or disperse external impact force, further reducing the risk of damage to the first layer of battery monomers 10.

[0230] In some embodiments, the first buffer layer 33 is bonded to the first inner layer plate 32. The bonding material includes but is not limited to double-sided tape, structural adhesive, etc.

[0231] The first buffer layer 33 is bonded to the first inner layer plate 32, which improves the connection stability of the first buffer layer 33 and the first inner layer plate 32, and the connection method is simple.

[0232] According to specific design requirements, the structure of the second cover body 40 can be the same as or different from the first cover body 30. For example, taking the battery 100 used in the vehicle 1000 as an example, since the first cover body 30 faces the bottom wall and needs to resist external impact, the first cover body 30 described above can improve the protection performance of the bottom wall of the box body, while the second cover body 40 is located at the top and has a lower possibility of being impacted, so the second cover body 40 can be made of plastic or other materials that meet the lightweight index.

[0233] In some embodiments, the first direction Z is parallel to the direction of gravity. In this embodiment, the first layer of battery monomers 10 can be understood as the lower layer of battery monomers 100, and the second layer of battery monomers 20 can be understood as the upper layer of battery monomers 100.

[0234] The embodiments of the present application provide a power consumption device, which includes the battery 100 described above, and the battery 100 is used to power the power consumption device.

[0235] The battery 100 provided by the present application is described above in combination with the drawings, and the preparation method of the battery 100 provided by the present application is described below in combination with FIGS. 10 and 13. It can be understood that the technical solutions of the preparation method of the battery 100 in the following embodiments can correspond to the technical solutions of the battery 100 in the above embodiments, and the specific solution details can be referred to the related description of the above embodiments, which will not be described in detail below.

[0236] FIG. 12 is a flowchart of the preparation method of the battery 100 according to some embodiments of the present application.

[0237] The battery 100 preparation method provided by the embodiments of the present application includes the following steps.

[0238] S100: providing a support 50, the support 50 having a first surface 521 and a second surface 522 opposite along the thickness direction thereof;

[0239] S200: connecting the first layer of battery monomers 10 to the first surface 521 with the first surface 521 of the support 50 facing upward;

[0240] S300: turning over the support 50 to make the second surface 522 of the support 50 face upward;

[0241] S400: connecting the second layer of battery monomers 20 to the second surface 522.

[0242] In step S200, the first layer of battery monomers 10 can be connected to the first surface 521 by a colloid. The first layer of battery monomers 10 can be connected to the first surface 521 by the colloid after the colloid is applied to the support 50, or the first layer of battery monomers 10 can be placed on the first surface 521, and then the colloid is injected into the gap between the first layer of battery monomers 10 and the support 50, or the colloid can be applied to the first surface 521 first, and then the first layer of battery monomers 10 is connected to the first surface 521 by the colloid, and then the colloid is supplemented and injected into other gaps between the battery monomers 100 and the support 50.

[0243] It should be noted that in the embodiments in which the flow channel is formed in the support 50, the first layer of battery monomers 10 can be connected to the first surface 521 by a heat-conducting adhesive.

[0244] The first layer of battery monomers 10 is connected to the first surface 521 with the first surface 521 of the support 50 facing upward, the support 50 is turned over to make the second surface 522 face upward, and the second layer of battery monomers 20 is connected to the second surface 522 of the support 50. Each layer of battery monomers 100 is assembled by being connected to the support 50 from above, which reduces the assembly difficulty of the battery 100 with double layers of battery monomers 100 and improves the assembly efficiency of the battery 100.

[0245] In some embodiments, connecting the first layer of battery monomers 10 to the first surface 521 comprises: connecting the first layer of battery monomers 10 to the first surface 521, and making the electrode terminals of the first layer of battery monomers 10 face upward.

[0246] Connecting the second layer of battery monomers 20 to the second surface 522 comprises: connecting the second layer of battery monomers 20 to the second surface 522, and making the electrode terminals of the second layer of battery monomers 20 face upward.

[0247] It can be understood that through the above steps, the electrode terminals of the first layer of battery monomers 10 face downward, and the electrode terminals of the second layer of battery monomers 20 face downward.

[0248] In some embodiments, connecting the first layer of battery monomers 10 to the first surface 521 comprises:

[0249] Providing glue on the first surface 521;

[0250] Connecting the first layer of battery monomers 10 to the first surface 521 through the glue.

[0251] In some embodiments, after connecting the first layer of battery monomers 10 to the first surface 521 through the glue, in order to improve the stability of the connection and reduce the risk of the first layer of battery monomers 10 being separated from the support 50 after the support 50 is turned over, the support 50 can be turned over after the glue is solidified.

[0252] In embodiments in which the support 50 comprises the first partition beam 53, the second partition beam 54, the support wall 52, and the pair of side walls 51, after connecting the first layer of battery monomers 10 to the support wall 52 through the glue, and before turning over the support 50, the glue can also be filled between the first layer of battery monomers 10 and the side wall 51, between the first partition beam 53 and the first battery module 11, and between the first partition beam 53 and the second battery module 12. It should be noted that the three steps of filling glue between the first layer of battery monomers 10 and the side wall 51, between the first partition beam 53 and the first battery module 11, and between the first partition beam 53 and the second battery module 12 have no order.

[0253] In some embodiments, connecting the second layer of battery monomers 20 to the second surface 522 comprises:

[0254] Providing glue on the second surface 522;

[0255] Connecting the second layer of battery monomers 20 to the second surface 522 through the glue.

[0256] In the embodiment in which the support 50 comprises the first partition beam 53, the second partition beam 54, the support wall 52 and the pair of side walls 51, after the first layer of battery monomers 100 is connected to the support wall 52 by the gel, the gel can also be filled between the second layer of battery monomers 20 and the side walls 51, between the second partition beam 54 and the third battery module 21, and between the second partition beam 54 and the fourth battery module 22. It should be noted that the three steps of filling the gel between the second layer of battery monomers 20 and the side walls 51, between the second partition beam 54 and the third battery module 21, and between the second partition beam 54 and the fourth battery module 22 do not have a sequence.

[0257] In some embodiments, in order to improve the assembly efficiency, the gel can be accelerated to solidify by air circulation or the like, so as to shorten the waiting time. For example, the gel can be heated by a fan or dried by an infrared lamp.

[0258] FIG. 13 is a flowchart of a method for manufacturing the battery 100 according to some embodiments of the present application.

[0259] Referring to FIG. 13, in some embodiments, after the first layer of battery monomers 10 is connected to the first surface 521, and before the support 50 is flipped, the method for manufacturing the battery 100 further comprises the following steps.

[0260] S500: providing a first cover 30 and connecting the first cover 30 to the support 50, so that the first layer of battery monomers 10 is located between the first cover 30 and the first surface 521.

[0261] Specifically, the first cover 30 can be connected to the side walls 51. In the embodiment in which the battery 100 comprises the end wall 80, the first cover 30 can also be connected to the end wall 80.

[0262] In some embodiments, after the first layer of battery monomers 10 is connected to the support 50, and before the first cover 30 is connected to the support 50, the method for manufacturing the battery 100 can further comprise installing components such as the busbar component and the temperature sampling assembly on the first layer of battery monomers 10.

[0263] Continuing to refer to FIG. 13, in some embodiments, after the second layer of battery monomers 20 is connected to the second surface 522, the method for manufacturing the battery 100 further comprises the following steps.

[0264] S600: providing a second cover 40 and connecting the second cover 40 to the support 50, so that the second layer of battery monomers 20 is located between the second cover 40 and the second surface 522.

[0265] The battery 100 includes the first layer of battery monomers 10, the second layer of battery monomers 20, the support 50, the first cover 30, the second cover 40, and a pair of end walls 80.

[0266] The first layer of battery monomers 10 and the second layer of battery monomers 20 are arranged in a first direction Z, which is parallel to the direction of gravity. The first layer of battery monomers 10 includes a plurality of first battery monomers 101, which are fixedly integrated into four battery 100 modules, namely a first battery module 11, a second battery module 12, a fifth battery module 13, and a sixth battery module 14. The first battery module 11 and the second battery module 12 are arranged along a second direction Y, and the fifth battery module 13 and the sixth battery module 14 are arranged along the second direction Y. Along a third direction X, the first battery module 11 corresponds to the fifth battery module 13, and the second battery module 12 corresponds to the sixth battery module 14.

[0267] The second layer of battery monomers 20 includes a plurality of second battery monomers 201, which are fixedly integrated into four battery 100 modules, namely a third battery module 21, a fourth battery module 22, a seventh battery module 23, and an eighth battery module 24. The third battery module 21 and the fourth battery module 22 are arranged along the second direction Y, and the seventh battery module 23 and the eighth battery module 24 are arranged along the second direction Y. Along the third direction X, the third battery module 21 corresponds to the seventh battery module 23, and the fourth battery module 22 corresponds to the eighth battery module 24.

[0268] The support 50 includes a support wall 52, a pair of side walls 51, a first partition beam 53, and a second partition beam 54, which are integrally formed. The support wall 52 is located between the first layer of battery monomers 10 and the second layer of battery monomers 20, and the pair of side walls 51 are arranged in the second direction Y with a spacing therebetween, and the support wall 52 is located between the pair of side walls 51. The support wall 52 has opposite first and second surfaces 521 and 522 along its thickness direction, with the first surface 521 being a lower surface and the second surface 522 being an upper surface. Along the first direction Z, the two ends of the first side wall 51 respectively extend beyond the first and second surfaces 521 and 522. The inside of the support wall 52 forms a first flow channel 523 for containing a heat exchange medium, the inside of the side wall 51 forms a second flow channel 511 for containing the heat exchange medium, the inside of the first partition beam 53 forms a third flow channel 531 for containing the heat exchange medium, and the inside of the second partition beam 54 forms a fourth flow channel 541 for containing the heat exchange medium.

[0269] The first layer of battery cells 10 is adhered to the first surface 521 by a thermally conductive adhesive, and the first layer of battery cells 10 is adhered to the side wall 51 by a thermally conductive adhesive. The second layer of battery cells 20 is adhered to the second surface 522 by a thermally conductive adhesive, and the second layer of battery cells 20 is adhered to the side wall 51 by a thermally conductive adhesive. In the second direction Y, the first layer of battery cells 10 and the second layer of battery cells 20 are both located between a pair of side walls 51.

[0270] The first partition beam 53 extends in the third direction X, the first partition beam 53 is connected to the support wall 52 and protrudes from the first surface 521, the first partition beam 53 is located between the first battery module 11 and the second battery module 12, and the first partition beam 53 is located between the fifth battery module 13 and the sixth battery module 14. The first battery module 11, the second battery module 12, the fifth battery module 13, and the sixth battery module 14 are all adhered to the first partition beam 53 by a thermally conductive adhesive.

[0271] The second partition beam 54 extends in the third direction X, the second partition beam 54 is connected to the support wall 52 and protrudes from the second surface 522, the second partition beam 54 is located between the third battery module 21 and the fourth battery module 22, and the second partition beam 54 is located between the seventh battery module 23 and the eighth battery module 24. The third battery module 21, the fourth battery module 22, the seventh battery module 23, and the eighth battery module 24 are all adhered to the second partition beam 54 by a thermally conductive adhesive.

[0272] A pair of end walls 80 are arranged in the third direction X, the support wall 52 is located between the pair of end walls 80, and each end wall 80 is connected to a pair of side walls 51 at both ends. The first cover 30 is connected to a pair of end walls 80 and a pair of end walls 80, and the second cover 40 is connected to a pair of end walls 80 and a pair of side walls 51. The first cover 30, the second cover 40, a pair of end walls 80, and a pair of side walls 51 enclose a receiving cavity, and the support wall 52 divides the receiving cavity into a first cavity 91 and a second cavity 92. The first layer of battery cells 10 is accommodated in the first cavity 91, and the second layer of battery cells 20 is accommodated in the second cavity 92.

[0273] The bracket 50 is used to simultaneously carry the first layer of battery cells 10 and the second layer of battery cells 20, and the bracket 50 is also configured to adjust the temperature of the first layer of battery cells 10 and the second layer of battery cells 20.

[0274] The first battery cell 101 is provided with a first electrode terminal 1011 at an end away from the support 50, and the first electrode terminal 1011 is located at the bottom of the first battery cell 101. The second battery cell 201 is provided with a second electrode terminal 2011 at an end away from the support 50, and the second electrode terminal 2011 is located at the top of the second battery cell 201. The first layer of battery cells 10 and the second layer of battery cells 20 are mirror-imaged, and the mirror plane of the first layer of battery cells 10 and the second layer of battery cells 20 is parallel to the plane formed by the second direction Y and the third direction X.

[0275] The first cover 30 includes a first cover body 31, a first inner layer plate 32, and a first buffer layer 33. The first inner layer plate 32 is arranged on the side of the first cover body 31 facing the first layer of battery cells 10, and a gap is formed between the first inner layer plate 32 and the first battery cell 101. The first buffer layer 33 is arranged between the first cover body 31 and the first inner layer plate 32. The first buffer layer 33 is a rubber layer. The first cover body 31 is stamped from sheet metal, the first inner layer plate 32 is stamped from sheet metal, and the first inner layer plate 32 is welded to the first cover body 31.

[0276] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0277] The above embodiments are only used to illustrate the technical solutions of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery comprising: a first layer of battery cells and a second layer of battery cells, the first layer of battery cells and the second layer of battery cells being arranged in a stack along a first direction; a support, at least a portion of the support being located between the first layer of battery cells and the second layer of battery cells along the first direction; wherein the first layer of battery cells and the second layer of battery cells are both connected to the support, the support being configured to simultaneously support the first layer of battery cells and the second layer of battery cells.

2. The battery of claim 1, wherein, the battery further comprises a first adhesive, the first layer of battery cells being connected to the support by the first adhesive; and / or, the battery further comprises a second adhesive, the second layer of battery cells being connected to the support by the second adhesive.

3. The battery according to claim 1 or 2, wherein the first layer of battery cells comprises a plurality of first battery cells, an end of the first battery cells facing away from the second layer of battery cells being provided with a first electrode terminal along the first direction; the second layer of battery cells comprises a plurality of second battery cells, an end of the second battery cells facing away from the first layer of battery cells being provided with a second electrode terminal along the first direction.

4. The battery of any one of claims 1-3, wherein, the support comprises: a support wall, the support wall being located between the first layer of battery cells and the second layer of battery cells along the first direction, the first layer of battery cells and the second layer of battery cells being connected to the support wall; a pair of side walls, the pair of side walls being spaced apart along a second direction, the support wall connecting the pair of side walls, the second direction being perpendicular to the first direction.

5. The battery of claim 4, wherein, the support wall has a first flow channel formed therein for accommodating a heat exchange medium.

6. The battery of claim 4 or 5, wherein, the support wall has a first surface and a second surface oppositely arranged along a thickness direction of the support wall, two ends of the side walls respectively extending beyond the first surface and the second surface, the thickness direction of the support wall being parallel to the first direction; the first layer of battery cells and the second layer of battery cells are located between the pair of side walls along the second direction.

7. The battery of claim 6, wherein, the first layer of battery cells is connected to the pair of side walls on both sides thereof along the second direction, the second layer of battery cells is connected to the pair of side walls on both sides thereof along the second direction.

8. The battery of any one of claims 4-7, wherein, the side walls have a second flow channel formed therein for accommodating a heat exchange medium.

9. The battery of any one of claims 4-8, wherein, the support wall and the side walls are integrally formed or welded.

10. The battery of any one of claims 4-9, wherein, the first layer of battery cells comprises a first battery module and a second battery module spaced apart along the second direction; the support further comprises: a first partition beam arranged on the support wall and located between the first battery module and the second battery module.

11. The battery of claim 10, wherein, the first battery module and the second battery module are both connected to the first partition beam.

12. The battery of claim 10 or 11, wherein, the first partition beam has a third flow channel formed therein for accommodating a heat exchange medium.

13. The battery of any one of claims 10-12, wherein, the first partition beam and the support wall are integrally formed or welded.

14. The battery of any one of claims 10-13, wherein, the second layer of battery cells comprises a third battery module and a fourth battery module spaced apart along the second direction; the support further comprises: a second partition beam arranged on the support wall and located between the third battery module and the fourth battery module.

15. The battery of claim 14, wherein, the third battery module and the fourth battery module are both connected to the second partition beam.

16. The battery of claim 14 or 15, wherein, The second partition beam is internally formed with a fourth flow channel for accommodating a heat exchange medium.

17. The battery of any one of claims 14-16, wherein, The second partition beam is integrally formed with or welded to the support wall.

18. The battery of any one of claims 4-17, wherein, The battery further comprises: a first cover connected to the pair of side walls; a second cover connected to the pair of side walls; In the first direction, the second cover is oppositely arranged to the first cover, the support frame is located between the first cover and the second cover, the first layer of battery cells is located between the first cover and the support wall, and the second layer of battery cells is located between the second cover and the support wall.

19. The battery of claim 18, wherein, The battery further comprises: a pair of end walls, the pair of end walls being spaced apart in a third direction, the support wall being located between the pair of end walls, and each of the end walls being connected to the pair of side walls at two ends thereof, the third direction, the second direction and the first direction being perpendicular to each other; The first cover is further connected to the pair of end walls, and the second cover is further connected to the pair of end walls.

20. The battery of claim 19, wherein, The first cover, the second cover, the pair of end walls and the pair of side walls enclose a receiving cavity; The support wall divides the receiving cavity into a first cavity and a second cavity, the first layer of battery cells being accommodated in the first cavity, and the second layer of battery cells being accommodated in the second cavity.

21. The battery of any one of claims 1-20, wherein, The support frame is internally formed with a flow channel for accommodating a heat exchange medium, and the support frame is configured to adjust the temperature of the first layer of battery cells and the second layer of battery cells.

22. The battery of any one of claims 1-21, wherein, The first direction is parallel to the direction of gravity.

23. An electrical device comprising the battery of any one of claims 1-22.

24. A method for manufacturing a battery, comprising: providing a support frame having a first surface and a second surface opposite to each other in a thickness direction of the support frame; connecting a first layer of battery cells to the first surface with the first surface facing upward; turning over the support frame to have the second surface facing upward; connecting a second layer of battery cells to the second surface.

25. The battery production method according to claim 24, wherein, The connecting of the first layer of battery cells to the first surface comprises: connecting the first layer of battery cells to the first surface with electrode terminals of the first layer of battery cells facing upward; The connecting of the second layer of battery cells to the second surface comprises: connecting the second layer of battery cells to the second surface with electrode terminals of the second layer of battery cells facing upward.

26. The battery production method according to claim 24 or 25, wherein The connecting of the first layer of battery cells to the first surface comprises: providing a gel on the first surface; connecting the first layer of battery cells to the first surface through the gel.

27. The battery production method according to any one of claims 24-26, wherein, The connecting of the second layer of battery cells to the second surface comprises: providing a gel on the second surface; connecting the second layer of battery cells to the second surface through the gel.

28. The battery production method according to any one of claims 24-27, wherein, After the connecting of the first layer of battery cells to the first surface and before the turning over of the support frame, the method further comprises: providing a first cover and connecting the first cover to the support frame to have the first layer of battery cells located between the first cover and the first surface.

29. The battery production method according to claim 28, wherein, After the connecting of the second layer of battery cells to the second surface, the method further comprises: A second cover is provided and coupled to the support such that the second layer of battery cells is positioned between the second cover and the second surface.

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