Battery, battery production device and battery production method

Abstract

Provided are a battery (100), a battery (100) production device and a battery (100) production method. The battery (100) comprises battery packs (400) and an enclosure (10), wherein each battery pack (400) comprises a plurality of battery cells (20) arranged in a first direction; one end of the enclosure (10) in a second direction is provided with an opening (104), the second direction intersects with the first direction, the enclosure (10) comprises two walls (1011) arranged opposite to each other in the first direction, the two walls (1011) clamp the plurality of battery cells (20) from two sides, the side of each wall (1011) facing the battery packs (400) is provided with clearance recesses (10111), and the clearance recesses (10111) extend to edges of the walls (1011) close to the opening (104) in the second direction. In the above structure, the clearance recesses (10111) are arranged on the side of each wall (1011) of the enclosure (10) facing the battery packs (400), the clearance recesses (10111) extend to the edges of the walls (1011) close to the opening (104) in the second direction, and when the battery packs (400) are arranged between the two walls (1011), a clamping mechanism (500) can be separated from the opening (104) by means of the clearance recesses (10111), such that the clamping mechanism (500) is easy to separate, thereby reducing the difficulty in the production process of the battery (100), and improving the production efficiency.

Description

Battery, battery production device and battery production method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311687561.9, filed on December 8, 2023, entitled “A battery, a battery production device, and a battery production method,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of battery production, and in particular to a battery, a battery production device and a battery production method. Background Art

[0004] Batteries have the advantages of high specific energy and high power density. They are widely used in electronic devices and transportation vehicles, such as mobile phones, laptops, electric vehicles, electric airplanes, electric ships, and electric tools.

[0005] As battery usage continues to increase, how to reduce the difficulty of the battery production process and improve the convenience of battery production has attracted more and more attention from those skilled in the art.

[0006] Summary of the Invention

[0007] In view of the above problems, the present application provides a battery, a battery production device and a battery production method, which have low difficulty in the battery production process and are conducive to improving production efficiency.

[0008] In a first aspect, some embodiments of the present application provide a battery, comprising a battery pack and a case, the battery pack comprising a plurality of battery cells arranged along a first direction; the case has an opening at one end along a second direction, the second direction intersects with the first direction, the case comprises two case walls arranged opposite to each other along the first direction, the two case walls clamp the plurality of battery cells from both sides, and an avoidance recess is provided on the side of the case wall facing the battery pack, the avoidance recess extending to the edge of the case wall close to the opening along the second direction.

[0009] In the above structure, since an avoidance recess is provided on the side of the box wall facing the battery pack, the avoidance recess extends to the edge of the box wall close to the opening along the second direction, the clamping mechanism can detach from the opening through the avoidance recess after the battery pack is placed between the two box walls, making it easier to detach the clamping mechanism, reducing the difficulty in the battery production process and helping to improve production efficiency.

[0010] According to the battery provided in some embodiments of the present application, the avoidance recess extends along the second direction, so that when the clamping mechanism disengages from the opening along the avoidance recess, the clamping mechanism moves in the direction of the opening, which is beneficial to reducing the possibility of collision between the clamping mechanism and the box.

[0011] According to the batteries provided in some embodiments of the present application, the battery pack also includes two end plates, which are arranged opposite to each other along a first direction, and multiple battery cells are stacked between the two end plates. The two box walls are clamped on the multiple battery cells through the two end plates. The end plates can play a buffering and isolating role between the battery cells and the box walls, which is beneficial to improving the reliability of the battery.

[0012] According to the batteries provided in some embodiments of the present application, the box wall is provided with a limiting protrusion on the side facing the battery pack, and the side of the end plate facing the box wall is provided with a limiting recess, and the limiting protrusion is inserted into the limiting recess. The limiting protrusion can block the movement of the battery pack in the second direction, which is beneficial to reduce the possibility of the battery pack escaping from the opening.

[0013] According to the batteries provided in some embodiments of the present application, the box wall includes an inner surface facing the battery pack, and the avoidance recess is recessed inward from the inner surface; the friction coefficient of the inner surface is greater than the friction coefficient of the wall of the avoidance recess, which not only reduces the resistance encountered by the clamping mechanism when moving in the avoidance recess, but also makes the battery pack subjected to greater friction when the box wall clamps the battery pack, which not only reduces the possibility of the battery pack moving in the accommodating space, but also helps to improve the overall structural strength of the battery pack.

[0014] According to the batteries provided in some embodiments of the present application, the battery pack is adhered to the inner surface of the box, so that multiple battery cells can be firmly connected to the box, which helps to reduce the possibility of movement or misalignment of the battery cells.

[0015] According to the batteries provided in some embodiments of the present application, an electrode terminal is provided at one end of the battery cell facing the opening along the second direction, so that the battery cell is in an upright position in the box, which not only facilitates the arrangement of components such as circuit boards and connecting harnesses in the accommodating space of the box, but also enables the clamping mechanism to easily place the battery pack into the box.

[0016] According to the battery provided in some embodiments of the present application, the battery further includes a box cover, which is connected to the box body and covers the opening.

[0017] According to the battery provided in some embodiments of the present application, the battery includes multiple battery packs, and the multiple battery packs are arranged along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other; the box wall is provided with multiple avoidance recesses, and the multiple avoidance recesses are arranged one-to-one corresponding to the multiple battery packs. The multiple battery packs are beneficial to increasing the capacity of the battery. The avoidance recesses corresponding one-to-one to the multiple battery packs enable each battery pack to be clamped by the clamping mechanism and placed into the box body. The clamping mechanism can detach from the opening through the avoidance recess, making it easier to detach the clamping mechanism.

[0018] According to the battery provided in some embodiments of the present application, the avoidance recess is filled with a colloid, and after the colloid is cured, it can serve as a filling material to improve the structural strength of the avoidance recess.

[0019] In a second aspect, some embodiments of the present application provide a battery production method, the battery production method comprising:

[0020] Providing a plurality of battery cells, and arranging the plurality of battery cells along a first direction;

[0021] A box body is provided, wherein one end of the box body along a second direction has an opening, the second direction intersects the first direction, and the box body includes two box walls arranged opposite to each other along the first direction, the box walls are provided with avoidance recesses, and the avoidance recesses extend to an edge of the box wall along the second direction close to the opening;

[0022] Providing a clamping mechanism, the clamping mechanism clamps a plurality of battery cells and places the plurality of battery cells between the two box walls through the opening;

[0023] The clamping mechanism releases the plurality of battery cells and disengages the battery cells from the opening via the escape recess;

[0024] The avoidance recess is provided on a side of the box wall facing the battery cells, and the two box walls clamp the multiple battery cells from both sides.

[0025] Through the above-mentioned battery production method, after the battery pack is placed between the two box walls, the clamping mechanism can be detached from the opening through the avoidance recess, making it easier to detach the clamping mechanism. This battery production method has low difficulty in producing batteries and high production efficiency.

[0026] According to some embodiments of the present application, a battery production method is provided, which includes providing a clamping mechanism, clamping a plurality of battery cells, and placing the plurality of battery cells between two box walls through an opening, including:

[0027] The clamping mechanism clamps two ends of the plurality of battery cells in a first direction;

[0028] The clamping mechanism squeezes the plurality of battery cells to a preset length in a first direction;

[0029] The clamping mechanism places the battery cells between the two box walls through the opening.

[0030] Through the above steps, multiple battery cells can be compressed and placed between the two box walls, thereby enabling multiple battery cells to enter the box.

[0031] According to the battery production method provided in some embodiments of the present application, before the clamping mechanism places the plurality of battery cells between the two box walls, the battery production method further includes:

[0032] The projection of the clamping mechanism in the direction of the opening is aligned with the projection of the avoidance recess in the direction of the opening along the first direction.

[0033] This step enables the clamping mechanism to pass through the avoidance recess during the process of extending into between the two box walls, and the clamping mechanism is not likely to collide with the box walls.

[0034] In a third aspect, some embodiments of the present application provide a battery production device for assembling the battery provided by any of the above technical solutions, the battery production device comprising:

[0035] The clamping mechanism clamps a plurality of battery cells and places the plurality of battery cells between two box walls through the opening; wherein, after the clamping mechanism releases the plurality of battery cells, the clamping mechanism can be detached from the opening through the avoidance recess.

[0036] Through the above structure, the clamping mechanism of the battery production device can detach from the opening through the avoidance recess after the battery pack is placed between the two box walls, making it easier to detach the clamping mechanism, reducing the difficulty of the battery production process and helping to improve production efficiency.

[0037] According to the battery production device provided in some embodiments of the present application, the battery production device also includes an adsorption member, which is used to adsorb multiple battery cells and can limit the multiple battery cells to reduce the possibility of misalignment of the battery cells during the transfer process.

[0038] According to the battery production device provided in some embodiments of the present application, the battery production device also includes an alignment mechanism, the alignment mechanism includes a camera and a controller, the controller is communicatively connected with the camera and the clamping mechanism, and the camera lens is set toward the opening; after the clamping mechanism clamps a plurality of battery cells, the controller can control the clamping mechanism to move to a position aligned with the avoidance recess along a first direction, where the first direction is the direction in which the plurality of battery cells are arranged.

[0039] With the above structure, the alignment mechanism can make the clamping mechanism pass through the avoidance recess during the process of extending into between the two box walls, so that the clamping mechanism is not likely to collide with the box walls.

[0040] According to the battery production device provided in some embodiments of the present application, the direction of the camera lens is configured to be opposite to the direction of the opening, so that the camera lens is arranged relative to the opening, which is conducive to enabling the controller to more accurately obtain the position information of the clamping mechanism through the image acquired by the camera.

[0041] In a third aspect, some embodiments of the present application provide an electrical device, which includes a battery provided by any of the above technical solutions, and the battery is used to provide electrical energy.

[0042] The technical solutions provided by the embodiments of the present disclosure bring at least the following beneficial effects:

[0043] The present application provides a battery, comprising a battery pack and a housing, wherein the battery pack comprises a plurality of battery cells arranged along a first direction; the housing comprises an opening at one end along a second direction, the second direction intersecting the first direction; the housing comprises two walls arranged opposite each other along the first direction, the two walls clamping the plurality of battery cells from both sides; a relief recess is provided on the side of the housing wall facing the battery pack, the relief recess extending to the edge of the housing wall along the second direction near the opening. In the above structure, since the relief recess is provided on the side of the housing wall facing the battery pack, and the relief recess extends to the edge of the housing wall along the second direction near the opening, the clamping mechanism can be disengaged from the opening via the relief recess after the battery pack is placed between the two housing walls, making disengagement of the clamping mechanism easier, reducing the difficulty in the battery production process, and facilitating improved production efficiency.

[0044] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. Throughout the accompanying drawings, the same reference numerals are used to denote the same components.

[0046] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0047] FIG2 is a disassembled diagram of a battery provided in some embodiments of the present application;

[0048] FIG3 is a schematic diagram of the internal structure of a battery provided in some embodiments of the present application;

[0049] FIG4 is a cross-sectional view of a box wall in a battery provided by some embodiments of the present application;

[0050] FIG5 is a flow chart of a battery production method provided in some embodiments of the present application;

[0051] FIG6 is a schematic diagram of the structure of multiple battery cells after expansion in the battery production method according to some embodiments of the present application;

[0052] FIG7 is a flow chart of step S30 in the battery production method provided in some embodiments of the present application;

[0053] FIG8 is a schematic diagram of the structure of multiple battery cells after compression in a battery production method according to some embodiments of the present application;

[0054] FIG9 is a schematic structural diagram of a battery production device provided in some embodiments of the present application.

[0055] In the accompanying drawings: 10. Box body; 101. First box body; 102. Second box body; 103. Accommodation space; 104. Opening; 1011. Box wall; 10111. Avoidance recess; 10112. Limiting protrusion; 20. Battery cell; 30. End plate; 301. Limiting recess; 400. Battery pack; 500. Clamping mechanism; 51. Clamping claw; 52. Drive; 600. Adsorption part; 700. Alignment mechanism; 701. Camera; 702. Control unit; 1000. Vehicle; 100. Battery; 200. Controller; 300. Motor; X, first direction; Z, second direction; Y, third direction. DETAILED DESCRIPTION

[0056] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0057] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0058] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.

[0059] In addition, the technical terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the embodiments of the present application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0060] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0061] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0062] Batteries have the advantages of high specific energy and high power density. They are widely used in electronic devices and transportation vehicles, such as mobile phones, laptops, electric vehicles, electric airplanes, electric ships, and electric tools.

[0063] Currently, judging by market developments, batteries are increasingly being used. They are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace.

[0064] As the application scope of batteries continues to expand in various fields, people are paying more and more attention to the production efficiency of batteries. How to reduce the difficulty in the battery production process and improve the production efficiency of batteries has become an important research direction for technical personnel in this field.

[0065] The battery mentioned 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.

[0066] The battery cell may be a secondary battery cell, which refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0067] The battery cells can be lithium-ion battery cells, sodium-ion battery cells, sodium-lithium-ion battery cells, lithium metal battery cells, sodium metal battery cells, lithium-sulfur battery cells, magnesium-ion battery cells, nickel-hydrogen battery cells, nickel-cadmium battery cells, lead-acid battery cells, etc.

[0068] As an example, the battery cells may be cylindrical, prismatic, soft-pack or other shaped battery cells. Prismatic battery cells include square-shell, blade-shaped, and polygonal batteries. Polygonal batteries may be, for example, hexagonal batteries.

[0069] In some embodiments, the battery may be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0070] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are housed in the case.

[0071] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0072] In some embodiments, the battery may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.

[0073] Typically, multiple battery cells need to be squeezed before being loaded into a box, and they need to remain squeezed during the process. If the clamping mechanism releases its grip on the multiple battery cells prematurely, the multiple battery cells will expand and press against the box. The friction between the battery cells and the box will make insertion difficult. If the clamping mechanism does not release its grip on the multiple battery cells prematurely, the clamping mechanism will become trapped between the battery cells and the box after the battery cells are loaded into the box, making disengagement difficult. This complicates the battery production process and is not conducive to improving battery production efficiency.

[0074] To reduce the difficulty in the battery production process and improve battery production efficiency, some embodiments of the present application provide a battery, comprising a battery pack and a housing, wherein the battery pack includes a plurality of battery cells arranged along a first direction; the housing has an opening at one end along a second direction, the second direction intersecting the first direction; the housing includes two walls arranged opposite each other along the first direction, the two walls clamping the plurality of battery cells from two sides, and a relief recess is provided on the side of the housing wall facing the battery pack, the relief recess extending to the edge of the housing wall along the second direction near the opening. In the above structure, because the relief recess is provided on the side of the housing wall facing the battery pack, the relief recess extending to the edge of the housing wall along the second direction near the opening, the clamping mechanism can be disengaged from the opening via the relief recess after the battery pack is placed between the two housing walls, making disengagement of the clamping mechanism easier, reducing the difficulty in the battery production process and facilitating improved production efficiency.

[0075] The battery described in the embodiments of the present application is suitable for use in electrical devices that use the battery.

[0076] Electrical devices can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools. Vehicles can be fuel-powered, gas-powered, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid vehicles, or extended-range vehicles. Spacecraft include aircraft, rockets, space shuttles, and spacecraft. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0077] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0078] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0079] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also 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.

[0080] Please refer to Figure 2, which is an exploded view of the battery 100 provided in some embodiments of the present application. The battery 100 includes a housing 10 and a battery cell 20, and the battery cell 20 is accommodated in the housing 10. Among them, the housing 10 is used to provide a storage space for the battery cell 20. There can be multiple battery cells 20 in the battery 100, and the multiple battery cells 20 can be connected in series, in parallel, or mixed. Mixed means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 can be directly connected in series, in parallel, or mixed together, and then the whole formed by the multiple battery cells 20 is accommodated in the housing 10; of course, the battery 100 can also be a battery module formed by first connecting multiple battery cells 20 in series, in parallel, or mixed, and then the multiple battery modules are connected in series, in parallel, or mixed to form a whole, and accommodated in the housing 10.

[0081] The housing 10 may include a first housing 101 and a second housing 102. The first housing 101 and the second housing 102 cover each other to define a storage space for accommodating the battery cells 20. The first housing 101 and the second housing 102 may be of various shapes, such as a rectangular parallelepiped, a cylinder, etc. The first housing 101 may be a hollow structure with one side open, and the second housing 102 may also be a hollow structure with one side open. The open side of the second housing 102 covers the open side of the first housing 101, thereby forming the housing 10 with a storage space.

[0082] The battery 100 may further include other structures. For example, the battery 100 may further include a busbar component for achieving electrical connection between the plurality of battery cells 20 .

[0083] Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0084] Some embodiments of the present application provide a battery 100, as shown in FIG3 , which includes a battery pack 400 and a housing 10. The housing 10 may be the first housing 101 or the second housing 102 of the aforementioned solution, and those skilled in the art may configure the housing according to actual circumstances. The battery pack 400 includes a plurality of battery cells 20 arranged along a first direction X. The housing 10 has an opening 104 at one end along a second direction Z, where the second direction Z intersects the first direction X. The housing 10 includes two walls 1011 arranged opposite each other along the first direction X. The two walls 1011 clamp the plurality of battery cells 20 from both sides. A relief recess 10111 is provided on the side of the wall 1011 facing the battery pack 400. The relief recess 10111 extends to the edge of the wall 1011 along the second direction Z near the opening 104.

[0085] The battery pack 400 may be an assembly including a plurality of battery cells 20 . During the process of assembling the battery cells 20 into the box 10 , the battery pack 400 may be clamped and loaded into the box 10 using the clamping mechanism 500 , thereby achieving the loading of the plurality of battery cells 20 into the box 10 .

[0086] The multiple battery cells 20 in the battery pack 400 are stacked along the first direction X, so that when the battery pack 400 is clamped and squeezed by the clamping mechanism 500 in the first direction X, the multiple battery cells 20 can be compressed in the first direction X, so that the length of the battery pack 400 in the first direction X is reduced, making it easier to be loaded into the box body 10.

[0087] Exemplarily, the clamping mechanism 500 may include two clamping jaws 51 , which are arranged opposite to each other along the first direction X and can move along the first direction X, so that the clamping mechanism 500 can clamp the battery pack 400 at both ends of the battery pack 400 in the first direction X and clamp multiple battery cells 20 .

[0088] The housing 10 may be a component capable of enclosing a storage space 103. The storage space 103 in the housing 10 has an opening 104 at one end in the second direction Z. The second direction Z intersects the first direction X. This allows the clamping mechanism 500 to release its grip on the battery cells 20, allowing the battery cells 20 to expand in the first direction X. This allows the battery pack 400 to abut against the housing 10 at both ends in the first direction X, thereby improving the structural strength of the battery pack 400.

[0089] The box wall 1011 may be a wall structure within the box body 10 that encloses the accommodating space 103. The box body 10 includes two box walls 1011 spaced apart from each other along a first direction X. The battery pack 400 is positioned between the two box walls 1011, and the battery cells 20 are clamped from both sides by the two box walls 1011. The escape recess 10111 may be a recessed structure formed by an inward depression on the side of the box wall 1011 facing the battery pack 400. The escape recess 10111 extends to the edge of the box wall 1011 along the second direction Z near the opening 104, allowing the clamping mechanism 500 to disengage from the opening 104 along the escape recess 10111 after entering the escape recess 10111.

[0090] In the above structure, since the side of the box wall 1011 of the box body 10 facing the battery pack 400 is provided with an avoidance recess 10111, the avoidance recess 10111 extends to the edge of the box wall 1011 close to the opening 104 along the second direction Z, the clamping mechanism 500 can be detached from the opening 104 through the avoidance recess 10111 after placing the battery pack 400 between the two box walls 1011, making it easier to detach the clamping mechanism 500, reducing the difficulty in the production process of the battery 100, and helping to improve production efficiency.

[0091] In some embodiments, the avoidance recess 10111 extends along the second direction Z.

[0092] By extending the avoidance recess 10111 along the second direction Z, the clamping mechanism 500 moves along the direction of the opening 104 during the process of disengaging from the opening 104 along the avoidance recess 10111, which helps to reduce the possibility of collision between the clamping mechanism 500 and the box body 10.

[0093] In some embodiments, the battery pack 400 further includes two end plates 30 , which are arranged opposite to each other along the first direction X. Multiple battery cells 20 are stacked between the two end plates 30 , and the two box walls 1011 are clamped to the multiple battery cells 20 through the two end plates 30 .

[0094] The end plates 30 may be plate-shaped components disposed at both ends of the battery pack 400 along the first direction X, and may serve as components in the battery pack 400 that abut against the box walls 1011. By disposing the two end plates 30 with relative spacing along the first direction X, and stacking the multiple battery cells 20 between the two end plates 30, the two box walls 1011 can clamp the multiple battery cells 20 via the two end plates 30, thereby reducing the possibility of direct contact between the battery cells 20 and the box walls 1011. The end plates 30 can act as a buffer and isolation between the battery cells 20 and the box walls 1011, thereby improving the reliability of the battery 100.

[0095] In some embodiments, as shown in FIG4 , the box wall 1011 is provided with a limiting protrusion 10112 on the side facing the battery pack 400 , and the end plate 30 is provided with a limiting recess 301 on the side facing the box wall 1011 , and the limiting protrusion 10112 is inserted into the limiting recess 301 .

[0096] The limiting protrusion 10112 can be a structure protruding from the inner surface of the box wall 1011 facing the battery pack 400, and the limiting recess 301 can be a limiting recess 301 formed by being recessed inward from the surface of the end plate 30 facing the box wall 1011. By inserting the limiting protrusion 10112 into the limiting recess 301, the limiting protrusion 10112 can block the movement of the battery pack 400 in the second direction Z, which is beneficial to reducing the possibility of the battery pack 400 escaping from the opening 104; this can also reduce the connectors or connecting materials (such as adhesives) used to connect the battery pack 400 to the box body 10, which is beneficial to facilitate the removal of the battery pack 400 from the box body 10 and improve the feasibility of repairing the battery 100. The limiting protrusion 10112 can be set as a hemispherical protrusion structure, and the limiting recess 301 can be correspondingly set as a hemispherical recess structure, so that the limiting protrusion 10112 can be smoothly inserted into the limiting recess 301 and can be smoothly removed from the limiting recess 301.

[0097] For example, the limiting protrusion 10112 can be made simultaneously with the box wall 1011 by a casting process, so that the limiting protrusion 10112 can be easily formed. In some embodiments, the limiting recess 301 can be formed on the end plate 30 by a material removal processing method such as drilling or milling.

[0098] In some embodiments, the box wall 1011 includes an inner surface facing the battery pack 400 , and the avoidance recess 10111 is recessed inward from the inner surface; the friction coefficient of the inner surface is greater than the friction coefficient of the wall of the avoidance recess 10111 .

[0099] The avoidance recess 10111 is recessed inward from the inner surface of the box wall 1011 facing the battery pack 400 , so that the clamping mechanism 500 can enter the avoidance recess 10111 from the accommodating space 103 , thereby facilitating the clamping mechanism 500 to detach from the opening 104 .

[0100] By setting the friction coefficient of the inner surface to be greater than the friction coefficient of the wall of the avoidance recess 10111, not only can the resistance encountered by the clamping mechanism 500 when moving in the avoidance recess 10111 be reduced, but also the friction force encountered by the battery pack 400 when the box wall 1011 clamps the battery pack 400 is greater, which not only reduces the possibility of the battery pack 400 moving in the accommodating space 103, but also reduces the connectors or connecting materials (such as adhesives) used to connect the battery pack 400 to the box body 10, and is conducive to improving the overall structural strength of the battery pack 400.

[0101] For example, the friction coefficient of the inner surface and the friction coefficient of the wall of the avoidance recess 10111 can be measured using the plane method, which will not be described here.

[0102] In some embodiments, the battery pack 400 is adhered to the inner surface of the box 10 .

[0103] The battery pack 400 is bonded to the inner surface of the housing 10 using adhesive to bond the multiple battery cells 20 in the battery pack 400 to the inner surface of the housing 10. This allows the multiple battery cells 20 to be securely connected to the housing 10, thereby reducing the possibility of movement or misalignment of the battery cells 20. In the aforementioned technical solution, the limiting protrusion 10112 is inserted into the limiting recess 301 to limit the position of the battery pack 400, which can reduce the amount of adhesive used and help reduce the cost of the battery 100.

[0104] In some embodiments, an electrode terminal is provided at one end of the battery cell 20 facing the opening 104 along the second direction Z.

[0105] Electrode terminals may be components provided on the outer casing of the battery cell 20 and may be used to electrically connect to an external electrical device or charging device to facilitate charging and discharging of the battery cell 20. Electrode terminals are provided at one end of the battery cell 20 facing the opening 104 along the second direction Z. The battery cell 20 is positioned upright within the housing 10, facilitating the placement of components such as circuit boards and wiring harnesses within the housing space 103 of the housing 10. Furthermore, the clamping mechanism 500 facilitates the placement of the battery pack 400 within the housing 10.

[0106] In some embodiments, a box cover is further included, which is connected to the box body 10 and covers the opening 104 .

[0107] The box cover can be a cover for covering the opening 104 of the box body 10. By connecting the box cover to the box body 10 and covering the opening 104, the box cover and the box body 10 can enclose the storage space 103, which can protect the battery pack 400 and other components in the storage space 103.

[0108] In some embodiments, the battery 100 includes multiple battery packs 400, and the multiple battery packs 400 are arranged along the third direction Y, and the first direction X, the second direction Z and the third direction Y are perpendicular to each other; the box wall 1011 is provided with multiple avoidance recesses 10111, and the multiple avoidance recesses 10111 are arranged one-to-one corresponding to the multiple battery packs 400.

[0109] By including multiple battery packs 400 in the battery 100, the capacity of the battery 100 is increased, allowing the battery 100 to meet people's demand for large amounts of power. Because the first direction X, the second direction Z, and the third direction Y are perpendicular to each other, arranging the multiple battery packs 400 along the third direction Y facilitates arrangement within the housing 10.

[0110] By setting a plurality of avoidance recesses 10111 on the box wall 1011, and making the plurality of avoidance recesses 10111 correspond one-to-one to the plurality of battery packs 400, after each battery pack 400 is clamped by the clamping mechanism 500 and placed into the box body 10, the clamping mechanism 500 can be detached from the opening 104 through the avoidance recess 10111, making it easier to detach the clamping mechanism 500.

[0111] In some embodiments, the avoidance recess 10111 is filled with colloid.

[0112] After the clamping mechanism 500 is disengaged from the opening 104 via the avoidance recess 10111, a colloid is filled into the avoidance recess 10111, so that the colloid completely fills the avoidance recess 10111. After curing, the colloid can serve as a filling material to improve the structural strength of the avoidance recess 10111. For example, the colloid can be a structural adhesive, which has high strength after curing and can withstand large loads. In some embodiments, the colloid can be an epoxy resin structural adhesive, a polyurethane structural adhesive, a polyurethane structural adhesive, or a polyurethane structural adhesive. Those skilled in the art can select the specific type of colloid based on actual conditions.

[0113] Some embodiments of the present application further provide a method for producing a battery 100 , which can be used to assemble the battery 100 provided by the above technical solution. As shown in FIG5 , the method for producing the battery 100 includes:

[0114] S10 , providing a plurality of battery cells 20 , and arranging the plurality of battery cells 20 along a first direction X.

[0115] Through step S10, a plurality of battery cells 20 stacked and arranged along the first direction X can be provided, which facilitates the subsequent use of the clamping mechanism 500 to clamp the plurality of battery cells 20 in the first direction X. The clamping mechanism 500 can also facilitate the use of the plurality of battery cells 20 at one time, thereby facilitating the assembly of the battery 100.

[0116] S20. Provide a box body 10, which has an opening 104 at one end along the second direction Z. The second direction Z intersects with the first direction X. The box body 10 includes two box walls 1011 arranged opposite to each other along the first direction X. The box wall 1011 is provided with an avoidance recess 10111, which extends to the edge of the box wall 1011 along the second direction Z close to the opening 104.

[0117] Through step S20, the box body 10 of the battery 100 in the above technical solution can be provided. Specifically, because the two box walls 1011 on both sides of the first direction X are provided with avoidance recesses 10111 extending to the opening 104, the clamping mechanism 500 can be disengaged from the opening 104 via the avoidance recesses 10111 after the battery pack 400 is placed between the two box walls 1011, making it easier to disengage the clamping mechanism 500. This makes the battery 100 production method less difficult and more efficient.

[0118] S30 , providing a clamping mechanism 500 , which clamps a plurality of battery cells 20 and places the plurality of battery cells 20 between the two box walls 1011 through the opening 104 .

[0119] Through step S30 , the clamping mechanism 500 can clamp a plurality of battery cells 20 at a time and place the plurality of battery cells 20 between the two box walls 1011 through the opening 104 .

[0120] S40 , the clamping mechanism 500 releases the plurality of battery cells 20 , and the battery cells 20 are separated from the opening 104 through the escape recess 10111 .

[0121] After releasing the battery cells 20 through step S40, the clamping mechanism 500 is able to enter the escape recess 10111 and smoothly disengage from the opening 104 via the escape recess 10111. As shown in Figure 6, after the clamping mechanism 500 releases the battery cells 20, the battery cells 20 expand in the first direction X. The battery cells 20 abut against the two box walls 1011 at both ends in the first direction X, allowing the battery cells 20 to be loaded into the box body 10. After the battery cells 20 abut against the box walls 1011, the clamping jaws 51 of the clamping mechanism 500 disengage from the opening 104 via the escape recess 10111.

[0122] The avoidance recess 10111 is provided on a side of the box wall 1011 facing the battery cells 20 , and the two box walls 1011 clamp the plurality of battery cells 20 from both sides.

[0123] By arranging the avoidance recess 10111 on the side of the box wall 1011 facing the battery cell 20, and the two box walls 1011 clamping multiple battery cells 20 from both sides, the clamping mechanism 500 can enter the avoidance recess 10111 after releasing the multiple battery cells 20, making it easier to disengage from the opening 104 through the avoidance recess 10111.

[0124] In some embodiments, as shown in FIG7 , step S30 includes:

[0125] S310 : The clamping mechanism 500 clamps both ends of the plurality of battery cells 20 in the first direction X.

[0126] In step S310 , since the plurality of battery cells 20 are arranged along the first direction X, the clamping mechanism 500 clamps the plurality of battery cells 20 from both ends in the first direction X. The clamping mechanism 500 can clamp the plurality of battery cells 20 for transfer.

[0127] S320 , the clamping mechanism 500 squeezes the plurality of battery cells 20 in the first direction X to a preset length.

[0128] In step S320 , the clamping mechanism 500 clamps and squeezes the plurality of battery cells 20 in the first direction X, so that the plurality of battery cells 20 are compressed to a predetermined length in the first direction X. The predetermined length is less than or equal to the spacing between the two box walls 1011 in the first direction X, so that the compressed plurality of battery cells 20 can be placed in the accommodation space 103 between the two box walls 1011 .

[0129] S330 : The clamping mechanism 500 places the plurality of battery cells 20 between the two box walls 1011 through the opening 104 .

[0130] Through step S330 , as shown in FIG8 , the plurality of battery cells 20 compressed by the clamping claws 51 of the clamping mechanism 500 are placed between the two box walls 1011 , enabling the plurality of battery cells 20 to enter the box body 10 .

[0131] In some embodiments, before step S330, the battery 100 production method further includes:

[0132] S321 , aligning the projection of the clamping mechanism 500 in the direction of the opening 104 with the projection of the avoidance recess 10111 in the direction of the opening 104 along the first direction X.

[0133] In step S321, by transferring the clamping mechanism 500, the projection of the clamping mechanism 500 toward the opening 104 is aligned with the projection of the avoidance recess 10111 toward the opening 104 along the first direction X. This allows the clamping mechanism 500 to pass through the avoidance recess 10111 during the process of extending between the two box walls 1011 in step S330, and the clamping mechanism 500 is not likely to collide with the box wall 1011.

[0134] Through the above-mentioned battery 100 production method, after the battery pack 400 is placed between the two box walls 1011, the clamping mechanism 500 can be detached from the opening 104 through the avoidance recess 10111, making it easier to detach the clamping mechanism 500. The battery 100 production method has low difficulty in producing batteries 100 and high production efficiency.

[0135] Some embodiments of the present application also provide a battery 100 production device, which can be used to assemble the battery 100 provided by the above-mentioned technical solution. As shown in Figure 9, the battery 100 production device includes a clamping mechanism 500, which clamps multiple battery cells 20 and places the battery cells 20 between the two box walls 1011 through the opening 104; wherein, after the clamping mechanism 500 releases the multiple battery cells 20, the clamping mechanism 500 can detach from the opening 104 through the avoidance recess 10111.

[0136] The clamping mechanism 500 may include two clamping jaws 51 and a driver 52. The two clamping jaws 51 are transmission-connected to the driver 52. The two clamping jaws 51 are relatively spaced apart along the first direction X and can move along the first direction X under the drive of the driver 52, so that the clamping mechanism 500 can clamp or release the battery pack 400 at both ends of the first direction X of the battery pack 400.

[0137] Driven by the driver 52, the two clamping jaws 51 can place the multiple battery cells 20 between the two box walls 1011 through the opening 104, allowing the multiple battery cells 20 to enter the box body 10. After the multiple battery cells 20 are placed in the accommodation space between the two box walls 1011, the two clamping jaws 51 can release the multiple battery cells 20 and disengage from the opening 104 through the avoidance recess 10111 under the drive of the driver 52.

[0138] After the battery pack 400 is placed between the two box walls 1011 , the clamping mechanism 500 of the battery 100 production device can be detached from the opening 104 via the avoidance recess 10111 , which makes detachment easier, reduces the difficulty in the battery 100 production process, and has higher production efficiency.

[0139] In some embodiments, the battery 100 production device further includes an adsorption member 600 , which is used to adsorb multiple battery cells 20 .

[0140] The adsorbent 600 may be a component for adsorbing the multiple battery cells 20 in the battery pack 400. By adsorbing the multiple battery cells 20 clamped by the clamping mechanism 500, the adsorbent 600 can limit the position of the multiple battery cells 20 and reduce the possibility of misalignment of the battery cells 20 during transfer.

[0141] For example, the adsorption member 600 may be a suction cup, which may be connected to a vacuum generating device and utilize the negative pressure generated by the vacuum generating device to adsorb the plurality of battery cells 20 .

[0142] In some embodiments, the battery 100 production device also includes an alignment mechanism 700, which includes a camera 701 and a control unit 702. The control unit 702 is communicatively connected to the camera 701 and the clamping mechanism 500, and the lens of the camera 701 is set toward the opening 104; after the clamping mechanism 500 clamps multiple battery cells 20, the control unit 702 can control the clamping mechanism 500 to move to a position aligned with the avoidance recess 10111 along a first direction X, where the first direction X is the direction in which the multiple battery cells 20 are arranged.

[0143] The alignment mechanism 700 may be a mechanism for moving the clamping mechanism 500 to a position aligned with the avoidance recess 10111 along the first direction X. This allows the clamping mechanism 500 to pass through the avoidance recess 10111 during its insertion between the two box walls 1011, preventing the clamping mechanism 500 from colliding with the box walls 1011. The position where the clamping mechanism 500 is aligned with the avoidance recess 10111 along the first direction X may be a position where the projection of the clamping mechanism 500 in the direction of the opening 104 is aligned with the projection of the avoidance recess 10111 in the direction of the opening 104 along the first direction X.

[0144] The camera 701 may be a charge coupled device (CCD) camera 701. The CCD camera 701 has the advantages of high sensitivity, resistance to strong light, and low distortion. It can more accurately capture the image of the clamping mechanism 500 at the opening 104, which helps the clamping mechanism 500 to be better moved to a position aligned with the avoidance recess 10111 along the first direction X.

[0145] The control unit 702 can be a centralized or distributed control unit 702. For example, the control unit 702 can be a single microcontroller or a plurality of distributed microcontrollers. The microcontroller can run a control program to control the clamping mechanism 500 to move to a position aligned with the avoidance recess 10111 along the first direction X.

[0146] By connecting the control unit 702 to the camera 701 and the clamping mechanism 500 for communication, the control unit 702 can process the image of the clamping mechanism 500 at the opening 104 captured by the camera 701 to obtain the position information of the clamping mechanism 500, so as to further control the movement position of the clamping mechanism 500 until the clamping mechanism 500 moves to a position aligned with the avoidance recess 10111 along the first direction X.

[0147] In some embodiments, the orientation of the lens of camera 701 is configured to be opposite to the orientation of opening 104 .

[0148] By configuring the direction of the camera 701 lens to be opposite to the direction of the opening 104 , the camera 701 lens and the opening 104 are arranged relative to each other, which helps the control unit 702 to obtain the position information of the clamping mechanism 500 more accurately through the image obtained by the camera 701 .

[0149] Some embodiments of the present application further provide an electrical device, which includes the battery 100 provided by the above technical solution, and the battery 100 is used to provide electrical energy.

[0150] The power-consuming device may be any of the aforementioned devices or systems using the battery 100 .

[0151] According to some embodiments of the present application, as shown in FIG3 , the present application provides a battery 100 comprising a housing 10, a housing cover, and a plurality of battery packs 400. The housing 10 defines a receiving space 103 having an opening 104, the housing cover being adapted to cover the opening 104, and the plurality of battery packs 400 being arranged in the receiving space 103 along a third direction Y, with the opening 104 being located at one end of the housing 10 along a second direction Z. The battery pack 400 comprises a plurality of battery cells 20 and two end plates 30, the two end plates 30 being spaced relative to each other along a first direction X, and the plurality of battery cells 20 being stacked and arranged between the two end plates 30 along the first direction X. The box body 10 includes two box walls 1011 arranged opposite to each other along the first direction X. The two box walls 1011 clamp multiple battery cells 20 from both sides through the end plates 30. The side of the box wall 1011 facing the battery pack 400 is provided with an avoidance recess 10111 extending along the second direction Z. The avoidance recess 10111 extends to the edge of the box wall 1011 close to the opening 104 along the second direction Z, so that after the battery pack 400 is placed between the two box walls 1011, the clamping mechanism 500 can be detached from the opening 104 through the avoidance recess 10111, making it easier to detach the clamping mechanism 500. In addition, the avoidance recess 10111 is recessed inward from the inner surface of the box wall 1011 facing the battery pack 400, and the friction coefficient of the inner surface is configured to be greater than the friction coefficient of the wall of the avoidance recess 10111. This not only reduces the resistance encountered by the clamping mechanism 500 when moving in the avoidance recess 10111, but also helps to improve the overall structural strength of the battery pack 400.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery comprising: A battery pack comprising a plurality of battery cells arranged along a first direction; A box body has an opening at one end along a second direction, the second direction intersects with the first direction, the box body includes two box walls arranged opposite to each other along the first direction, the two box walls clamp a plurality of battery cells from both sides, and an avoidance recess is provided on the side of the box wall facing the battery pack, the avoidance recess extends to the edge of the box wall close to the opening along the second direction.

2. The battery according to claim 1, wherein The avoidance recess extends along the second direction.

3. The battery according to claim 1 or 2, wherein: The battery pack further includes two end plates, which are arranged opposite to each other along the first direction, a plurality of battery cells are stacked between the two end plates, and the two box walls are clamped to the plurality of battery cells by the two end plates.

4. The battery according to claim 3, wherein The box wall is provided with a limiting protrusion on a side facing the battery pack, and the end plate is provided with a limiting recess on a side facing the box wall, and the limiting protrusion is inserted into the limiting recess.

5. The battery according to any one of claims 1 to 4, wherein: The box wall includes an inner surface facing the battery pack, and the avoidance recess is recessed inward from the inner surface; the friction coefficient of the inner surface is greater than the friction coefficient of the wall surface of the avoidance recess.

6. The battery according to any one of claims 1 to 4, wherein: The battery pack is bonded to the inner surface of the box.

7. The battery according to any one of claims 1 to 4, wherein: An electrode terminal is provided at one end of the battery cell facing the opening along the second direction.

8. The battery according to any one of claims 1 to 4, wherein: It also includes a box cover, which is connected to the box body and covers the opening.

9. The battery according to any one of claims 1 to 4, wherein: The battery comprises a plurality of battery packs, the plurality of battery packs are arranged along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; The box wall is provided with a plurality of the avoidance recesses, and the plurality of the avoidance recesses are arranged in one-to-one correspondence with the plurality of the battery packs.

10. The battery according to any one of claims 1 to 4, wherein: The avoidance recess is filled with colloid.

11. A battery production method comprising: Providing a plurality of battery cells, and arranging the plurality of battery cells along a first direction; A box body is provided, wherein one end of the box body along a second direction has an opening, the second direction intersects with the first direction, the box body comprises two box walls arranged opposite to each other along the first direction, the box walls are provided with avoidance recesses, and the avoidance recesses extend to an edge of the box wall along the second direction close to the opening; Providing a clamping mechanism, the clamping mechanism clamps the plurality of battery cells and places the plurality of battery cells between the two box walls through the opening; The clamping mechanism releases the plurality of battery cells and disengages from the opening via the escape recess; Wherein, the avoidance recess is arranged on a side of the box wall facing the battery monomer, and the two box walls clamp the plurality of battery monomers from both sides.

12. The battery production method according to claim 11, wherein: A clamping mechanism is provided, the clamping mechanism clamps the plurality of battery cells and places the plurality of battery cells between the two box walls via the opening, comprising: The clamping mechanism clamps two ends of the plurality of battery cells in the first direction; The clamping mechanism squeezes the plurality of battery cells to a preset length in the first direction; The clamping mechanism places the plurality of battery cells between the two box walls via the opening.

13. The battery production method according to claim 12, wherein: Before the clamping mechanism places the plurality of battery cells between the two box walls, the battery production method further includes: The projection of the clamping mechanism in the direction of the opening is aligned with the projection of the avoidance recess in the direction of the opening along the first direction.

14. A battery production device for assembling the battery according to any one of claims 1 to 10, the battery production device comprising: A clamping mechanism clamps a plurality of battery cells and places the plurality of battery cells between the two box walls via the opening; wherein after the clamping mechanism releases the plurality of battery cells, the clamping mechanism can be detached from the opening via the avoidance recess.

15. The battery production device according to claim 14, wherein: The battery production device further includes an adsorbing member, and the adsorbing member is used for adsorbing the plurality of battery cells.

16. The battery production device according to claim 14 or 15, wherein: The battery production device also includes an alignment mechanism, which includes a camera and a controller. The controller is communicatively connected with the camera and the clamping mechanism, and the lens of the camera is set toward the opening. After the clamping mechanism clamps a plurality of the battery cells, the controller can control the clamping mechanism to move to a position aligned with the avoidance recess along a first direction, and the first direction is the direction in which the plurality of the battery cells are arranged.

17. The battery production device according to claim 16, wherein: The camera lens is oriented in a direction opposite to the opening.

18. An electrical device, comprising the battery according to any one of claims 1 to 10, wherein the battery is used to provide electrical energy.

Images