Battery and electric device

Abstract

A battery (100) and an electric device. The battery (100) comprises a case (10), a plurality of battery assemblies (20), a plurality of first busbars (40) and pressing strips (30). The case (10) is provided with an accommodating space. The plurality of battery assemblies (20) are arranged in the accommodating space and are arranged in a first direction (a), wherein the first direction (a) is the length direction or the width direction of the case (10). Each battery assembly (20) comprises a plurality of battery cells (21). The plurality of battery cells (21) are arranged in a second direction (b), wherein the second direction (b) intersects with the first direction (a). On one side of the corresponding battery assembly (20) in a third direction (c), two adjacent battery cells (21) are electrically connected by means of one first busbar (40), wherein the third direction (c) separately intersects with the first direction (a) and the second direction (b). The pressing strips (30) are arranged in the accommodating space and are arranged on the same side of the battery assemblies (20) as the plurality of first busbars (40). At least some of the first busbars (40) are connected to the pressing strips (30). The pressing strips (30) are insulated from the first busbars (40). The pressing strips (30) are connected to the sides of the first busbars (40) facing away from the battery assemblies (20), thereby improving the overall structural strength of the battery (100).

Description

Battery and electric device

[0001] Cross Reference to Related Applications

[0002] This application claims priority to and the benefit of the following patent application, the entire contents of which are incorporated herein by reference:

[0003] Chinese Patent Application No. 202410708604.5, filed on May 31, 2024, entitled “Battery and electric device” with the China National Intellectual Property Office. TECHNICAL FIELD

[0004] The present application relates to the technical field of batteries, in particular to a battery and an electric device. BACKGROUND

[0005] With the development of new energy, more and more fields use new energy as power. Due to the advantages of high energy density, recyclable charging, safety and environmental protection, batteries are widely used in new energy vehicles, consumer electronics, energy storage systems and other fields.

[0006] The battery includes a box body and a plurality of battery monomers arranged in the box body. In order to improve the energy density of the battery, the number of battery monomers is usually increased by simplifying the structure of the box body. However, the structural strength of the battery is reduced.

[0007] SUMMARY

[0008] In view of the above problems, the present application provides a battery and an electric device, which solves the problem of low structural strength of the battery.

[0009] A first aspect of the present application provides a battery, which comprises:

[0010] a box body having a containing space;

[0011] a plurality of battery assemblies arranged in the containing space and arranged along a first direction, the first direction being a length direction or a width direction of the box body, each battery assembly comprising a plurality of battery monomers arranged in a second direction, the second direction intersecting the first direction;

[0012] a plurality of first busbars, each first busbar electrically connecting adjacent two battery monomers on one side of the battery assembly in a third direction, the third direction intersecting the first direction and the second direction respectively;

[0013] a pressing strip arranged in the containing space and on the same side of the battery assembly as the plurality of first busbars, at least a part of the plurality of first busbars being connected to the pressing strip, and the pressing strip being insulated from the first busbars.

[0014] Specifically, the pressing strip is arranged in the battery, and the pressing strip is connected to the side of the first busbar away from the battery assembly, so that the pressing strip is integrated with the battery assembly, the structural strength of the battery assembly is improved by the pressing strip, and the overall structural strength of the battery is improved.

[0015] In some embodiments of the present application, the connection between the pressing strip and the first busbar includes bonding, clamping or connection through the first connecting piece. By setting the connection between the pressing strip and the first busbar, the connection mode can be selected according to the assembly requirements, thereby improving the flexibility of assembly and effectively improving the efficiency of assembly.

[0016] In some embodiments of the present application, the side of the pressing strip away from the first busbar is connected to the box. The pressing strip is arranged to be connected to the box, so that the battery assembly is connected to the box and forms an integral whole, and the overall structural strength of the battery is further improved.

[0017] In some embodiments of the present application, the connection between the pressing strip and the box includes bonding, clamping or connection through the second connecting piece. By setting the connection between the pressing strip and the box, the connection mode can be selected according to the assembly requirements, thereby improving the flexibility of assembly and effectively improving the efficiency of assembly.

[0018] In some embodiments of the present application, the box includes a first part and a second part, and the first part and the second part enclose a containing space. One of the first part and the second part is arranged to face the pressing strip and is connected to the side of the pressing strip away from the battery assembly. The box is arranged in a combined structure of the first part and the second part, so that the battery assembly is conveniently assembled into the box, thereby improving the convenience of assembly.

[0019] In some embodiments of the present application, the pressing strip includes an extension part, and the extension part is arranged to extend in the first direction. The extension part is arranged flush with the side of the pressing strip away from the battery assembly, and the extension part is connected to one of the first part and the second part. The extension part is arranged and connected to the first part or the second part of the box, thereby increasing the connection area between the pressing strip and the box, further improving the connection strength between the pressing strip and the box, and further improving the overall structural strength of the battery.

[0020] In some embodiments of the present application, the number of extension parts is two, and the two extension parts are arranged on opposite sides of the pressing strip in the first direction. The two extension parts are arranged, further increasing the connection area between the pressing strip and the box, further improving the connection strength between the pressing strip and the box, and further improving the overall structural strength of the battery.

[0021] In some embodiments of the present application, the first part is a cover structure, the second part is a frame structure, the frame structure is provided with a receiving groove, the first part is connected with the second part, the first part and the receiving groove form a containing space, and the pressing strip is connected with the first part. During assembly, the plurality of battery assemblies are arranged in the receiving groove, the battery monomer in each battery assembly is connected with the first busbar, the pressing strip is connected with the first busbar, and finally the first part is connected with the second part. When the first part and the second part are installed in place, the pressing strip is connected with the first part. Through the arrangement of the first part and the second part, the assembly convenience in the battery production process is effectively improved, so that the assembly time is shortened and the assembly efficiency is improved.

[0022] In some embodiments of the present application, in the second direction, the frame structure comprises two oppositely arranged support beams, and at least one of the two support beams is connected with the pressing strip. By connecting the pressing strip with the support beam, the connection position of the battery assembly and the box is further increased, the connection strength of the battery assembly and the box is further improved, and the structural strength of the battery is further improved.

[0023] In some embodiments of the present application, the connection mode between the pressing strip and the support beam comprises bonding, welding, clamping or connecting through a connecting piece. By setting the connection mode between the pressing strip and the support beam, the connection mode can be selected according to the assembly requirements, thereby improving the flexibility of assembly and effectively improving the efficiency of assembly.

[0024] In some embodiments of the present application, the pressing strip is a strip-shaped piece and is arranged in extension in the second direction, and in the first direction, the plurality of first busbars located on the same side of the battery assembly are respectively connected with the pressing strip. The strip-shaped pressing strip is connected with the first busbars on the same battery assembly, so that the battery assembly connected with the pressing strip can improve the structural strength, thereby effectively improving the overall structural strength of the battery.

[0025] In some embodiments of the present application, in the first direction, the pressing strip has a first cross section, and the outer contour of the first cross section is rectangular or trapezoidal. By setting the shape of the first cross section, the pressing strip and the first busbar and the box have sufficient contact area, thereby further improving the connection strength between the pressing strip and the first busbar and the box, and further improving the overall structural strength of the battery.

[0026] In some embodiments of the present application, the pressing strip is a solid structure or a tubular structure. By setting the pressing strip, the structure of the pressing strip can be selected according to the assembly requirements, thereby improving the flexibility of the selection of the pressing strip, and effectively meeting the assembly requirements of the battery.

[0027] In some embodiments of the present application, the number of the pressing strips is multiple, and all the pressing strips are arranged in parallel in the first direction. By arranging multiple pressing strips, the structural strength of the battery assembly can be further improved, so that the overall structural strength of the battery is effectively improved.

[0028] In some embodiments of the present application, the size of the pressing strip in the third direction is between 0.5 mm and 30 mm. By setting the size of the pressing strip in the third direction, the pressing strip has sufficient strength while effectively reducing the occupation of the internal space of the box, so that the energy density of the battery can be improved.

[0029] In some embodiments of the present application, the pressing strip is a non-metal component. The non-metal component is connected to the first busbar, which can reduce the short circuit caused by the conduction between the pressing strip and the first busbar, and improve the safety performance of the battery.

[0030] In some embodiments of the present application, the pressing strip is a metal component, and an insulation structure is arranged between the pressing strip and the first busbar. The pressing strip is arranged as a metal component, and the insulation structure is arranged between the pressing strip and the first busbar. The pressing strip has good structural strength as a metal component, so that the overall structural strength of the battery assembly can be further improved, and the overall structural strength of the battery can be improved.

[0031] In some embodiments of the present application, the insulation structure includes an insulating film or an insulating glue. The insulation structure has a simple structure, which can effectively reduce the manufacturing cost.

[0032] The second aspect of the present application provides a use electric device, which includes the battery according to the above.

[0033] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0034] Fig. 1 schematically shows a structural schematic diagram of a vehicle according to an embodiment of the present application;

[0035] Fig. 2 schematically shows a structural schematic diagram of a battery according to an embodiment of the present application;

[0036] Fig. 3 is an exploded structural schematic diagram of the battery shown in Fig. 2;

[0037] Fig. 4 is a partial structural schematic diagram of the battery shown in Fig. 2 in some embodiments;

[0038] Fig. 5 is a schematic view of an enlarged structure of part A in the structure shown in Fig. 4;

[0039] Fig. 6 is a schematic view of an enlarged structure of part B in the structure shown in Fig. 5;

[0040] Fig. 7 is a schematic view of a partial structure of the battery shown in Fig. 2 in some embodiments;

[0041] Fig. 8 is a schematic view of an enlarged structure of part C in the structure shown in Fig. 7.

[0042] Reference signs are as follows:

[0043] 1000, vehicle;

[0044] 100, battery; 200, controller; 300, motor;

[0045] 10, box;

[0046] 11, first part;

[0047] 12, second part;

[0048] 121, receiving groove; 122, support beam;

[0049] 20, battery assembly;

[0050] 21, battery cell;

[0051] 30, pressing strip;

[0052] 31, extension;

[0053] 40, first bus member;

[0054] 50, second bus member;

[0055] a, first direction; b, second direction; c, third direction; m, first dimension. DETAILED DESCRIPTION

[0056] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein 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.

[0058] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0059] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0060] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0061] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0062] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does 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 embodiments of the present application.

[0063] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0064] At present, from the development of market situation, the application of battery is more and more widely. The battery is not only applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely used in electric vehicles, such as electric bicycles, electric motorcycles, electric vehicles, electric transportation tools, military equipment and aerospace and other fields. With the continuous expansion of the application field of battery, the demand of its market is also increasing.

[0065] In the related art, the battery includes a box body and a plurality of battery monomers arranged in the box body. In order to improve the energy density of the battery, the number of battery monomers is usually increased by simplifying the structure of the box body. However, the structural strength of the battery is reduced.

[0066] In the present application, the battery includes a box body, a plurality of battery assemblies, a plurality of first busbars and a pressing strip. The box body has an accommodation space. The plurality of battery assemblies are arranged in the accommodation space and arranged along a first direction. The first direction is the length direction or the width direction of the box body. Each battery assembly includes a plurality of battery monomers. The plurality of battery monomers are arranged in a second direction. The second direction is arranged intersecting the first direction. On one side of the battery assembly in a third direction, the adjacent two battery monomers are electrically connected by one first busbar. The third direction intersects the first direction and the second direction respectively. The pressing strip is arranged in the accommodation space and arranged on the same side of the battery assembly as the plurality of first busbars. At least part of the number of first busbars are connected with the pressing strip, and the pressing strip is insulated from the first busbar. In the battery, the pressing strip is connected on the side of the first busbar away from the battery assembly, so that the pressing strip and the battery assembly form a whole. The structural strength of the battery assembly can be improved by using the pressing strip, so that the overall structural strength of the battery is enhanced.

[0067] The battery in the present application can be used in electric devices such as vehicles, ships or aircraft, but is not limited to. The power supply system of the electric device can be composed of the battery monomer and the battery involved in the present application.

[0068] The electric equipment using the battery as power supply in the present application can be but not limited to mobile phone, tablet, notebook computer, electric toy, electric tool, electric car, electric vehicle, ship, spacecraft and the like. Among them, the electric toy can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric plane toys, etc. Spacecraft can include aircraft, rockets, space shuttles and spacecraft, etc.

[0069] It should be understood that the technical solutions described in the present application are not only limited to the above described battery and electric equipment, but also can be applied to all batteries including box body and electric equipment using battery, but for the sake of simplicity, the following examples are described by taking electric vehicles as examples.

[0070] Please refer to FIG. 1, which is a structural schematic diagram of a vehicle 1000 provided by some embodiments of the present application. The vehicle 1000 can be a fuel automobile, a gas automobile, or a new energy automobile, which can be a pure electric automobile, a hybrid automobile, or a range extended automobile, etc. 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 source of the vehicle 1000. The vehicle 1000 can further include a controller 200 and a motor 300, the controller 200 being used to control the battery 100 to supply power to the motor 300, for example, to meet the power demand of the vehicle 1000 during starting, navigation, and driving.

[0071] In some embodiments of the present application, the battery 100 can not only be used as an operating power source of the vehicle 1000, but also be used as a driving power source of the vehicle 1000, to replace or partially replace fuel or natural gas to provide driving power for the vehicle 1000.

[0072] FIG. 2 shows a structural schematic diagram of the battery 100 according to an embodiment of the present application. In order to meet different power demand, the battery 100 can include a plurality of battery assemblies 20, which can be connected in series, in parallel, or in a mixed manner (the mixed manner refers to a mixture of series connection and parallel connection) and arranged in a box 10 to form the battery 100.

[0073] The box 10 is used to provide a containing space for the battery monomer 21, and the box 10 can adopt various structures. In some embodiments, the box 10 can include a first part 11 and a second part 12, the first part 11 and the second part 12 are mutually covered, and the first part 11 and the second part 12 jointly define a containing space for containing the battery assembly 20. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate-shaped structure, which is covered on the open side of the second part 12 to jointly define the containing space with the second part 12; the first part 11 and the second part 12 can also be hollow structures with one side open, and the open side of the first part 11 is covered on the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 can have various shapes, such as a cylinder, a cuboid, etc. In addition, the material of the box 10 can be an alloy material such as aluminum alloy, iron alloy, etc., or a high polymer material such as polycarbonate, polyisocyanurate foam plastic, etc., or a composite material such as glass fiber and epoxy resin, and the embodiments of the present application are not limited thereto.

[0074] As shown in FIG. 3, in the present application, the battery assembly 20 includes a plurality of battery cells 21, which are the smallest units that make up the battery assembly 20, and a plurality of busbars, which are components that can connect the plurality of battery cells 21 in series or in parallel to achieve electrical connection between the plurality of battery cells 21. The busbar can also be referred to as a busbar, a tab, or a busbar, which is generally a thin piece of metal that can be welded to the electrode terminal of the battery cell 21 to connect the plurality of battery cells 21 in series or in parallel. The plurality of battery cells 21 can be connected together in series or in parallel or in a mixed connection (mixed connection refers to a connection in which the plurality of battery cells 21 are connected in series and in parallel) by a busbar assembly. Each battery cell 21 can be a secondary battery 100 or a primary battery 100; it can also be a lithium-sulfur battery 100, a sodium-ion battery 100, or a magnesium-ion battery 100, but is not limited thereto. The battery cell 21 can be in the shape of a cylinder, a flat body, a cuboid, or other shapes.

[0075] The battery cell 21 can include one or more electrode assemblies inside, which are components in which electrochemical reactions occur in the battery cell 21. The tab is a component that transfers current in the battery cell 21. The electrode assembly is mainly formed by winding or stacking a positive electrode tab and a negative electrode tab, and a separator is generally provided between the positive electrode tab and the negative electrode tab. The positive electrode tab and the negative electrode tab have a portion of the active material that constitutes the main body of the electrode assembly, and each of the positive electrode tab and the negative electrode tab has a portion that does not have the active material provided with a tab. The positive electrode tab and the negative electrode tab can be located together at one end of the main body or can be located at both ends of the main body, respectively. During the charging and discharging processes of the battery 100, the positive active material and the negative active material react with the electrolyte, and the tab is connected between the tab and the electrode terminal to form a current loop.

[0076] In some embodiments, the battery cell 21 can be provided with functional components such as electrode terminals. The electrode terminal can be used to electrically connect the electrode assembly and the busbar for outputting or inputting the electrical energy of the battery cell 21. In some embodiments, the battery cell 21 can also be provided with a pressure relief mechanism for relieving internal pressure when the internal pressure or temperature of the battery cell 21 reaches a threshold value.

[0077] In some embodiments of the present application, as shown in FIGS. 2-8, a battery 100 is provided, which includes a box 10, a plurality of battery assemblies 20, a plurality of first busbars 40, and a pressing strip 30. The box 10 has a receiving space, the plurality of battery assemblies 20 are arranged in the receiving space and arranged along a first direction a, the first direction a being a length direction or a width direction of the box 10, each battery assembly 20 includes a plurality of battery monomers 21, the plurality of battery monomers 21 are arranged along a second direction b, the second direction b intersects the first direction a, the battery assembly 20 is located on one side of a third direction c, and the adjacent two battery monomers 21 are electrically connected by one first busbar 40; the third direction c intersects the first direction a and the second direction b, respectively, the pressing strip 30 is arranged in the receiving space and is arranged on the same side of the plurality of first busbars 40 of the battery assembly 20, at least a part of the plurality of first busbars 40 are connected with the pressing strip 30, and the pressing strip 30 is insulated from the first busbar 40.

[0078] Specifically, all the battery assemblies 20 are arranged along the first direction a, all the battery monomers 21 in each battery assembly 20 are arranged along the second direction b, and the adjacent two battery monomers 21 are electrically connected by one first busbar 40. The pressing strip 30 is arranged inside the box 10, and in the third direction c, the pressing strip 30 is located between the first busbar 40 and the box 10, the pressing strip 30 is connected on the side of the first busbar 40 away from the battery assembly 20, so that the pressing strip 30 can form an integral whole with the battery assembly 20, and the structural strength of the battery assembly 20 can be improved by using the pressing strip 30, so that the overall structural strength of the battery 100 is enhanced.

[0079] In addition, the pressing strip 30 is arranged in the box 10 of the battery 100, and the battery monomers 21 in the battery assembly 20 are connected into an integral whole by using the pressing strip 30, so as to improve the overall structural strength of the battery 100, thereby simplifying the internal structure of the box 10 (for example, reducing the expansion beam and other structures in the box 10), so that more battery monomers 21 can be arranged in the receiving space of the box 10, and the energy density of the battery 100 can be effectively improved.

[0080] It should be understood that, in the present application, the pressing strip 30 is a component with certain structural strength, and the pressing strip 30 can be a straight structure, a curved structure, or a multi-branch structure, etc. When the pressing strip 30 is connected with the first busbar 40, the pressing strip 30 can be connected with only the first busbar 40 on one battery assembly 20, or the pressing strip 30 can be connected with the first busbar 40 on different battery assemblies 20.

[0081] In addition, the first busbar 40 is electrically connected between two adjacent battery monomers 21, the first busbar 40 is a live part, the pressing strip 30 is connected to different first busbars 40, and the insulation between the first busbar 40 and the pressing strip 30 is provided, so that the short circuit of the first busbar 40 can be reduced, and the safety of the battery 100 is effectively improved.

[0082] It should be noted that the first busbar is electrically connected to the electrode terminal of one battery monomer 21 by welding, clamping or fastener connection, and the other end of the first busbar is electrically connected to the electrode terminal of another battery monomer 21 by welding, clamping or fastener connection.

[0083] In the present application, as shown in FIGS. 3-5 and FIGS. 7 and 8, the battery 100 further comprises a second busbar 50, two adjacent battery assemblies 20 are electrically connected by the second busbar 50 along the first direction a, and the electrical connection (series, parallel or mixed connection) between the battery assemblies 20 can be realized by providing the second busbar 50. The second busbar is electrically connected to the electrode terminal of the battery monomer 21 in one battery assembly 20 by welding, clamping or fastener connection, and the other end of the second busbar is electrically connected to the electrode terminal of the battery monomer 21 in another electrode assembly by welding, clamping or fastener connection.

[0084] In some embodiments of the present application, the connection between the pressing strip 30 and the first busbar 40 has multiple forms, and by providing the connection between the pressing strip 30 and the first busbar 40, the connection mode can be selected according to the assembly requirements, thereby improving the flexibility of assembly and effectively improving the efficiency of assembly.

[0085] For example, the pressing strip 30 and the first busbar 40 are connected by bonding. In the assembly process, an adhesive (which is a non-conductive adhesive, such as epoxy resin adhesive or polyurethane adhesive, etc.) is provided on at least one of the pressing strip 30 and the first busbar 40, and then the pressing strip 30 is abutted on the first busbar 40 to realize the connection and fixation between the pressing strip 30 and the first busbar 40. The bonding method has simple structure and is easy to implement assembly, which can effectively shorten the assembly time and effectively speed up the production rhythm.

[0086] For example, the pressing strip 30 is connected with the first busbar 40 through clamping. The first clamping structure (for example, a buckle structure) is arranged on the pressing strip 30, and the second clamping structure (for example, a clamping hole structure) is arranged on the first busbar 40. In the assembly process, the first clamping structure is arranged opposite to the second clamping structure, and the first clamping structure is clamped and matched with the second clamping structure, so as to realize the connection and fixation of the pressing strip 30 and the first busbar 40. The clamping connection has high connection strength, can effectively reduce the loosening and falling off between the pressing strip 30 and the first busbar 40, and improves the stability of the connection position of the pressing strip 30 and the first busbar 40.

[0087] For example, the pressing strip 30 is connected with the first busbar 40 through the first connecting piece (for example, a plastic screw). In the assembly process, the pressing strip 30 is abutted with the first busbar 40, and the first connecting piece is matched with the first busbar 40 and the pressing strip 30 respectively, so as to realize the connection and fixation of the pressing strip 30 and the first busbar 40. The connection through the first connecting piece can realize the disassembly between the pressing strip 30 and the first connecting piece, so as to improve the convenience in the maintenance process of the battery 100.

[0088] In some embodiments of the present application, as shown in FIGS. 4 to 8, the side of the pressing strip 30 away from the first busbar 40 is connected with the box body 10.

[0089] Specifically, along the third direction c, the first busbar 40, the pressing strip 30 and the box body 10 are arranged in sequence, and the opposite sides of the pressing strip 30 in the third direction c are connected with the first busbar 40 and the box body 10 respectively. By arranging the pressing strip 30 to be connected with the box body 10, the battery assembly 20 can be connected with the box body 10 and form a whole, and the structural strength of the whole battery 100 is further improved.

[0090] It should be pointed out that, in the present application, the pressing strip 30 is connected and fixed with the inner surface of the box body 10. The pressing strip 30 can be partially connected and fixed with the inner surface of the box body 10, or the pressing strip 30 can be entirely connected and fixed with the inner surface of the box body 10.

[0091] In some embodiments of the present application, the connection mode between the pressing strip 30 and the box body 10 has multiple forms. By arranging the connection mode between the pressing strip 30 and the box body 10, the connection mode can be selected according to the assembly requirements, so as to improve the flexibility of the assembly and effectively improve the efficiency of the assembly.

[0092] For example, the pressing strip 30 is connected with the box body 10 by adhesion. In the process of assembly, the adhesion glue (which is non-conductive glue, such as epoxy resin glue or polyurethane glue, etc.) is arranged on at least one of the pressing strip 30 and the box body 10, and then the pressing strip 30 is abutted with the box body 10 to realize the connection and fixation between the pressing strip 30 and the box body 10. The adhesion mode has simple structure, is convenient for implementation and assembly, can effectively shorten the assembly time, and can effectively accelerate the production rhythm.

[0093] For example, the pressing strip 30 is connected with the box body 10 by clamping. The first clamping structure (for example, a buckle structure) is arranged on the box body 10, and the second clamping structure (for example, a clamping hole structure) is arranged on the pressing strip 30. In the process of assembly, the first clamping structure and the second clamping structure are arranged opposite to each other, and the first clamping structure and the second clamping structure are clamped and matched to realize the connection and fixation of the pressing strip 30 and the box body 10. The clamping mode has high connection strength, can effectively reduce the loosening and falling off between the pressing strip 30 and the box body 10, and improves the stability of the connection position of the pressing strip 30 and the box body 10.

[0094] For example, the pressing strip 30 is connected with the box body 10 by the second connecting piece (for example, a plastic screw, etc.). In the process of assembly, the pressing strip 30 is abutted with the box body 10, and the second connecting piece is matched with the pressing strip 30 and the box body 10 respectively to realize the connection and fixation of the pressing strip 30 and the box body 10. The connection mode through the second connecting piece can realize the disassembly and assembly between the pressing strip 30 and the box body 10, thereby improving the convenience in the maintenance process of the battery 100.

[0095] In some embodiments of the present application, as shown in FIGS. 2 and 3, the box body 10 includes a first part 11 and a second part 12, and the first part 11 and the second part 12 enclose a containing space. One of the first part 11 and the second part 12 is arranged to face the pressing strip 30 and is connected with the side of the pressing strip 30 away from the battery assembly 20.

[0096] Specifically, taking the example that the pressing strip 30 is connected with the first bus piece 40 and the box body 10 by adhesion respectively, in the process of assembly, the battery assembly 20 is arranged on one of the first part 11 and the second part 12, the first bus piece 40 is connected on the battery assembly 20, the pressing strip 30 is adhered on the first bus piece 40 (non-conductive adhesion glue can be arranged on the pressing strip 30 and / or the first bus piece 40), then the first part 11 and the second part 12 are connected and fixed, and when the first part 11 and the second part 12 are installed in place, the pressing strip 30 is adhered and fixed with the other one of the first part 11 and the second part 12 (non-conductive adhesion glue can be arranged on the pressing strip 30 and / or the box body 10).

[0097] The box 10 is arranged in a combined structure of the first part 11 and the second part 12, so as to facilitate the assembly of the battery assembly 20 into the box 10, thereby improving the convenience of assembly.

[0098] It should be noted that the connection between the first part 11 and the second part 12 includes but is not limited to bonding, welding, clamping or connecting through fasteners.

[0099] In addition, a sealing structure (such as a sealing ring or sealing glue, etc.) is arranged at the joint position of the first part 11 and the second part 12, so as to improve the sealing performance of the joint position of the first part 11 and the second part 12.

[0100] In some embodiments of the present application, as shown in FIGS. 5 and 6, the pressing strip 30 includes an extension part 31, and the extension part 31 is arranged to extend in the first direction a, and the extension part 31 is arranged flush with the side of the pressing strip 30 away from the battery assembly 20, and the extension part 31 is connected to one of the first part 11 and the second part 12.

[0101] Specifically, the extension part 31 is arranged on the pressing strip 30, and the extension part 31 is arranged to extend in the first direction a and protrude relative to the pressing strip 30, and the extension part 31 is arranged flush with the pressing strip 30 in the third direction c. When the pressing strip 30 is connected to the box 10, the pressing strip 30 and the extension part 31 are respectively connected to the inner surface of the box 10.

[0102] The extension part 31 is arranged and connected to the first part 11 or the second part 12 of the box 10, thereby increasing the connection area of the pressing strip 30 and the box 10, so that the connection strength between the pressing strip 30 and the box 10 is further improved, and the overall structural strength of the battery 100 is further improved.

[0103] It should be noted that in the present application, the extension part 31 can be a convex structure, or a flange structure, etc. In addition, the extension part 31 and the pressing strip 30 are integrally formed, thereby improving the processing efficiency and improving the production rhythm.

[0104] In some embodiments of the present application, as shown in FIG. 6, the number of extension parts 31 is two, and the two extension parts 31 are arranged on opposite sides of the pressing strip 30 in the first direction a.

[0105] Specifically, two extension parts 31 are arranged, further increasing the connection area of the pressing strip 30 and the box 10, so that the connection strength between the pressing strip 30 and the box 10 is further improved, and the overall structural strength of the battery 100 is further improved.

[0106] In some embodiments of the present application, as shown in FIG. 3, the first part 11 is a cover plate structure, and the second part 12 is a frame structure provided with a receiving groove 121. The first part 11 is connected to the second part 12, and the first part 11 and the receiving groove 121 jointly form a containing space. The pressing strip 30 is connected to the first part 11.

[0107] Specifically, the second part 12 is a frame structure formed by splicing a plurality of frames. The receiving groove 121 is enclosed by the plurality of frames, and the top of the receiving groove 121 is open, and the rest is a closed structure. When the first part 11 is connected to the second part 12, the first part 11 can close the top of the receiving groove 121, thereby enclosing the containing space.

[0108] Taking the example that the pressing strip 30 is connected to the first busbar 40 and the box 10 by adhesion, during the assembly of the battery 100, the plurality of battery assemblies 20 are first arranged in the receiving groove 121, then the battery monomer 21 in each battery assembly 20 is connected to the first busbar 40, then the pressing strip 30 is adhesively fixed to the first busbar 40, and finally the first part 11 is connected to the second part 12. When the first part 11 and the second part 12 are installed in place, the pressing strip 30 is adhesively fixed to the first part 11. Through the arrangement of the first part 11 and the second part 12, the assembly convenience in the production process of the battery 100 is effectively improved, thereby shortening the assembly time and improving the assembly efficiency.

[0109] In some embodiments of the present application, as shown in FIG. 3, FIG. 4 and FIG. 7, along the second direction b, the frame structure includes two oppositely arranged support beams 122, and at least one of the two support beams 122 is connected to the pressing strip 30.

[0110] Specifically, the box 10 includes a first part 11 and a second part 12. The first part 11 is a cover plate structure, and the second part 12 is a frame structure provided with a receiving groove 121. The two support beams 122 are oppositely arranged and used to enclose the receiving groove 121. The battery assembly 20 is arranged in the receiving groove 121. The first busbar 40 electrically connects two battery monomers 21 arranged adjacently in the same battery assembly 20. The pressing strip 30 is connected to the first busbar 40 and the box 10.

[0111] By connecting the pressing strip 30 to the support beam 122, the connection position of the battery assembly 20 and the box 10 is further increased, the connection strength of the battery assembly 20 and the box 10 is further improved, and the structural strength of the battery 100 is further improved.

[0112] In some embodiments of the present application, the connection between the pressing strip 30 and the support beam 122 has multiple forms. By setting the connection between the pressing strip 30 and the support beam 122, the connection can be selected according to the assembly requirements, thereby improving the flexibility of assembly and effectively improving the efficiency of assembly.

[0113] For example, the pressing strip 30 and the support beam 122 are connected by adhesion. During assembly, an adhesive (which is a non-conductive adhesive, such as epoxy resin adhesive or polyurethane adhesive, etc.) is provided on at least one of the pressing strip 30 and the support beam 122, and then the pressing strip 30 and the support beam 122 are abutted to achieve the connection and fixation between the pressing strip 30 and the support beam 122. The adhesion method is simple in structure and easy to implement assembly, which can effectively shorten the assembly time and effectively speed up the production rhythm.

[0114] For example, the pressing strip 30 and the support beam 122 are connected by clamping. A first clamping structure (such as a buckle structure) is provided on the support beam 122, and a second clamping structure (such as a clamping hole structure) is provided on the pressing strip 30. During assembly, the first clamping structure and the second clamping structure are arranged opposite to each other, and the first clamping structure and the second clamping structure are clamped and matched to achieve the connection and fixation of the pressing strip 30 and the support beam 122. The clamping method has high connection strength, which can effectively reduce the loosening and falling off between the pressing strip 30 and the box body 10, and improve the stability of the connection position of the pressing strip 30 and the support beam 122.

[0115] For example, the pressing strip 30 and the support beam 122 are connected by a connecting piece (such as a screw, etc.). During assembly, the pressing strip 30 and the support beam 122 are abutted, and the connecting piece is matched with the pressing strip 30 and the support beam 122, respectively, to achieve the connection and fixation of the pressing strip 30 and the support beam 122. The connection by the connecting piece can realize the disassembly between the pressing strip 30 and the support beam 122, thereby improving the convenience during the maintenance of the battery 100.

[0116] For example, the pressing strip 30 and the support beam 122 are connected by welding. During assembly, the pressing strip 30 and the support beam 122 are abutted, and the pressing strip 30 and the support beam 122 are welded and fixed by a welding device to achieve the connection and fixation of the pressing strip 30 and the support beam 122. The connection by the connecting piece can realize the disassembly between the pressing strip 30 and the support beam 122, thereby improving the convenience during the maintenance of the battery 100.

[0117] In some embodiments of the present application, as shown in FIG. 5 or FIG. 8, the pressing strip 30 is a strip-shaped member and is arranged to extend along the second direction b. Along the first direction a, the plurality of first busbars 40 located on the same side of the battery assembly 20 are connected to the pressing strip 30.

[0118] Specifically, the pressing strip 30 in the strip shape is connected with the first busbar 40 on the same battery assembly 20, so that the battery assembly 20 connected with the pressing strip 30 can improve the structural strength, and thus the overall structural strength of the battery 100 can be effectively improved.

[0119] It should be understood that the size of the pressing strip 30 in the strip shape in the second direction b can be greater than, less than, or equal to the size of the battery assembly 20 in the second direction b.

[0120] In addition, all the first busbars 40 on the same battery assembly 20 located on the same side in the first direction a can be partially connected with the pressing strip 30, or all the first busbars 40 can be connected with the pressing strip 30.

[0121] Taking the square cell 21 as an example, the square cell 21 includes a plurality of surfaces, and the plurality of surfaces include two first surfaces oppositely arranged, wherein, in the plurality of surfaces, the first surface is the largest surface, and the two first surfaces are arranged at intervals in the second direction b. The pressing strip 30 is connected with the first busbar 40, and the pressing strip 30 is arranged perpendicularly to the two first surfaces, respectively. By arranging the pressing strip 30 perpendicularly to the two first surfaces, the pressing strip 30 can form a whole for the plurality of square cells 21 in the same battery assembly 20, and the structural strength of the battery assembly 20 is further improved, thereby improving the overall structural strength of the battery 100.

[0122] In some embodiments of the present application, along the first direction a, the pressing strip 30 has a first cross section, and the outer contour of the first cross section can have a plurality of shapes. By setting the shape of the first cross section, the pressing strip 30 and the first busbar 40 and the pressing strip 30 and the box body 10 have sufficient contact area, so that the connection strength between the pressing strip 30 and the first busbar 40 and the connection strength between the pressing strip 30 and the box body 10 can be further improved, and thus the overall structural strength of the battery 100 can be further improved.

[0123] For example, the first cross section is a rectangle, wherein the first cross section includes two first edges and two second edges, the two first edges are arranged at intervals in the first direction a, and the two second edges are arranged at intervals in the third direction c. The length of the second edge is greater than the length of the first edge. One of the two second edges is connected with the first busbar 40, and the other is connected with the box body 10. By setting the first cross section, the connection area between the pressing strip 30 and the first busbar 40 and the connection area between the pressing strip 30 and the box body 10 can be increased, so that the strength of the connection position is improved.

[0124] For example, the first cross section is trapezoidal, wherein the first cross section comprises an upper base and a lower base, the upper base and the lower base are arranged in the third direction c, and the length of the second side is greater than the length of the first side. One of the upper base and the lower base is connected with the first busbar 40, and the other is connected with the box body 10. Through the arrangement of the first cross section, the connection area of the pressing strip 30 and the first busbar 40 and the connection area of the pressing strip 30 and the box body 10 can be increased, so that the strength of the connection position is improved.

[0125] In some embodiments of the present application, the pressing strip 30 is a solid structure (as shown in FIG. 8) or a tubular structure (as shown in FIG. 5). Through the arrangement of the pressing strip 30, the structure of the pressing strip 30 can be selected according to the assembly requirements, so that the flexibility of the selection of the pressing strip 30 is improved, and the assembly requirements of the battery 100 are effectively met.

[0126] It should be pointed out that when the pressing strip 30 is a solid structure, the overall structural strength of the pressing strip 30 is high, which can form a whole with the plurality of battery monomers 21 in the battery assembly 20, and make the whole have sufficient structural strength to improve the overall structural strength of the battery 100.

[0127] When the pressing strip 30 is a tubular structure (and the pressing strip 30 is a hollow structure), the pressing strip 30 can form a buffer cavity by using the cavity to absorb external impact force, thereby reducing the adverse effects of external impact on the battery assembly 20, and effectively improving the safety performance of the battery 100.

[0128] In some embodiments of the present application, as shown in FIGS. 3, 4 and 7, the number of the pressing strips 30 is multiple, and all the pressing strips 30 are arranged in parallel in the first direction a.

[0129] Specifically, by arranging multiple pressing strips 30, the structural strength of the battery assembly 20 can be further improved, and the overall structural strength of the battery 100 is effectively improved.

[0130] It should be pointed out that in the present application, as shown in FIGS. 3, 4 and 7, each battery assembly 20 has two rows of first busbars 40 in the first direction a, and adjacent two battery assemblies 20 share one row of first busbars 40, and each row of first busbars 40 comprises a plurality of first busbars 40, wherein one pressing strip 30 is connected to each row of first busbars 40.

[0131] In some embodiments of the present application, the size of the pressing strip 30 in the third direction c is between 0.5 mm and 30 mm.

[0132] Specifically, by setting the size of the pressing strip 30 in the third direction c, the pressing strip 30 has sufficient strength while effectively reducing the occupation of the internal space of the box body 10, so that the energy density of the battery 100 can be improved.

[0133] In the present application, as shown in FIG. 6, the size of the pressing strip 30 in the third direction c is a first size m, which can be specifically 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, 10.5 mm, 11.5 mm, 12.5 mm, 13.5 mm, 14.5 mm, 15.5 mm, 16.5 mm, 17.5 mm, 18.5 mm, 19.5 mm, 20.5 mm, 21.5 mm, 22.5 mm, 23.5 mm, 24.5 mm, 25.5 mm, 26.5 mm, 27.5 mm, 28.5 mm, 29.5 mm, or 30 mm.

[0134] In some embodiments of the present application, the pressing strip 30 is a non-metal component.

[0135] Specifically, the non-metal component pressing strip 30 is connected to the first bus member 40, which can reduce the short circuit caused by the conduction between the pressing strip 30 and the first bus member 40, and improve the safety performance of the battery 100 on the basis of improving the overall structural strength of the battery assembly 20.

[0136] In the present application, the non-metal component includes but is not limited to a plastic component, a rubber component, or a ceramic component, etc.

[0137] In some embodiments of the present application, the pressing strip 30 is a metal component, and an insulating structure is provided between the pressing strip 30 and the first bus member 40.

[0138] Specifically, the pressing strip 30 is provided as a metal component, and an insulating structure is provided between the pressing strip 30 and the first bus member 40, so that the pressing strip 30 has good structural strength, thereby further improving the overall structural strength of the battery assembly 20, and improving the overall structural strength of the battery 100.

[0139] In the present application, the metal component includes but is not limited to a stainless steel component, a titanium alloy component, or a copper component, etc.

[0140] In some embodiments of the present application, the insulating structure includes an insulating film or an insulating glue. Specifically, the insulating structure has a simple structure, which can effectively reduce the manufacturing cost.

[0141] When the insulation structure is an insulation film, the insulation film can be wrapped outside the pressing strip 30 to improve the insulation performance of the pressing strip 30. When the insulation structure is an insulation glue, the insulation glue can be pre-applied to the outer surface of the pressing strip 30, or the pressing strip 30 can be bonded to the first busbar 40 by using the insulation glue.

[0142] As shown in FIGS. 1-8, the second aspect of the present application provides a power-using device, which comprises the battery 100 according to the above.

[0143] Specifically, all the battery assemblies 20 in the battery 100 are arranged in the first direction a, and all the battery cells 21 in each battery assembly 20 are arranged in the second direction b, and the adjacent two battery cells 21 are electrically connected by a first busbar 40. The pressing strip 30 is arranged inside the box body 10, and in the third direction c, the pressing strip 30 is located between the first busbar 40 and the box body 10. The pressing strip 30 is connected to the side of the first busbar 40 away from the battery assembly 20, so that the pressing strip 30 can form an integral whole with the battery assembly 20. The structural strength of the battery assembly 20 can be improved by using the pressing strip 30, so that the overall structural strength of the battery 100 is enhanced.

[0144] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described.

[0145] In the embodiments of the present application, as shown in FIGS. 2-8, the present application provides a battery 100, which comprises a box body 10, a plurality of battery assemblies 20, a plurality of first busbars 40 and a pressing strip 30. The box body 10 comprises a first part 11 and a second part 12. The first part 11 is a cover plate structure, and the second part 12 is a frame structure with a receiving groove 121. The first part 11 and the second part 12 are connected in a cover manner and enclose a containing space. The plurality of battery assemblies 20 are arranged in the containing space and arranged in the first direction a. The first direction a is the length direction or the width direction of the box body 10. Each battery assembly 20 comprises a plurality of battery cells 21 arranged in the second direction b. The second direction b intersects the first direction a. The first busbar 40 is arranged between the adjacent two battery cells 21 on the side of the battery assembly 20 in the third direction c. The third direction c intersects the first direction a and the second direction b. The pressing strip 30 is arranged in the containing space and on the same side of the battery assembly 20 as the plurality of first busbars 40. The first busbar 40 on the same battery assembly 20 is connected to the pressing strip 30, and the pressing strip 30 is insulated from the first busbar 40.

[0146] Further, the side of the pressing strip 30 away from the first busbar 40 is connected to the first part 11 of the box body 10, and the connection between the pressing strip 30 and the first busbar 40 is by adhesion, and the connection between the pressing strip 30 and the box body 10 is also by adhesion.

[0147] Further, the pressing strip 30 comprises an extension 31, which is flush with the end of the pressing strip 30 away from the battery assembly 20 and extends in the first direction a, and the extension 31 is connected to the first part 11. The number of the extensions 31 is two, and the two extensions 31 are arranged on opposite sides of the pressing strip 30 in the first direction a.

[0148] Further, along the second direction b, the second part 12 of the frame structure comprises two oppositely arranged support beams 122, and at least one of the two support beams 122 is connected to the pressing strip 30, and the connection between the pressing strip 30 and the support beam 122 is by bolting.

[0149] Further, the pressing strip 30 is a strip-shaped member and extends along the second direction b, and along the first direction a, the plurality of first busbars 40 on the same side of the battery assembly 20 are respectively connected to the pressing strip 30. Along the first direction a, the pressing strip 30 has a first cross section, and the outer contour of the first cross section is trapezoidal. The pressing strip 30 is a solid structure or a tubular structure.

[0150] Further, the number of the pressing strips 30 is multiple, and all the pressing strips 30 are arranged in parallel and at intervals in the first direction a.

[0151] Further, along the third direction c, the size of the pressing strip 30 is between 0.5 mm and 30 mm.

[0152] Further, the pressing strip 30 is a non-metal component, or the pressing strip 30 is a metal component, and an insulating structure is arranged between the pressing strip 30 and the first busbar 40.

[0153] Further, the insulating structure comprises an insulating film or an insulating adhesive.

[0154] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery, wherein, The battery comprises: a box body having a containing space; a plurality of battery assemblies arranged in the containing space and arranged along a first direction, the first direction being a length direction or a width direction of the box body, each of the battery assemblies comprising a plurality of battery monomers arranged along a second direction intersecting the first direction; a plurality of first busbars, on one side of the battery assembly in a third direction intersecting the first direction and the second direction, two adjacent battery monomers being electrically connected by one first busbar; a pressing strip arranged in the containing space and on the same side of the plurality of first busbars of the battery assembly, at least a part of the first busbars being connected to the pressing strip, and the pressing strip being insulated from the first busbars.

2. The battery of claim 1, wherein, The connection mode between the pressing strip and the first busbar includes bonding, clamping or connecting through a first connecting piece.

3. The battery of claim 1 or 2, wherein, The side of the pressing strip away from the first busbar is connected to the box body.

4. The battery of claim 3, wherein, The connection mode between the pressing strip and the box body includes bonding, clamping or connecting through a second connecting piece.

5. The battery of claim 3 or 4, wherein, The box body comprises a first part and a second part, the first part and the second part jointly forming the containing space, one of the first part and the second part being arranged to face the pressing strip and being connected to the side of the pressing strip away from the battery assembly.

6. The battery of claim 5, wherein, The pressing strip comprises an extension part, and the extension part is arranged to extend in the first direction, the extension part being arranged flush with the side of the pressing strip away from the battery assembly, and the extension part being connected to one of the first part and the second part.

7. The battery of claim 6, wherein, The number of the extension parts is two, and the two extension parts are arranged on opposite sides of the pressing strip in the first direction.

8. The battery of any one of claims 5 to 7, wherein, The first part is a cover plate structure, the second part is a frame structure, the frame structure is provided with a receiving groove, the first part is connected to the second part, the first part and the receiving groove jointly form the containing space, and the pressing strip is connected to the first part.

9. The battery of claim 8, wherein, In the second direction, the frame structure comprises two oppositely arranged support beams, at least one of the two support beams being connected to the pressing strip.

10. The battery of claim 9, wherein, The connection mode between the pressing strip and the support beam includes bonding, welding, clamping or connecting through a connecting piece.

11. The battery of any one of claims 1 to 10, wherein, The pressing strip is a strip-shaped piece arranged to extend in the second direction, and in the first direction, a plurality of first busbars on the same side of the battery assembly are respectively connected to the pressing strip.

12. The battery of claim 11, wherein, In the first direction, the pressing strip has a first cross section, and the outer contour of the first cross section is rectangular or trapezoidal.

13. The battery of claim 11 or 12, wherein, The pressing strip is a solid structure or a tubular structure.

14. The battery of claim 11 or 12, wherein, The number of the pressing strips is a plurality, and all the pressing strips are arranged in parallel in the first direction.

15. The battery of any one of claims 1 to 14, wherein, In the third direction, the size of the pressing strip is between 0.5 millimeters and 30 millimeters.

16. The battery of any one of claims 1 to 14, wherein, The pressing strip is a non-metal component.

17. The battery of any one of claims 1 to 14, wherein, The pressing strip is a metal component, and an insulating structure is arranged between the pressing strip and the first busbar.

18. The battery of claim 17, wherein, The insulating structure comprises an insulating film or an insulating adhesive.

19. An electrical device, comprising: The power consuming device comprises the battery according to any one of claims 1 to 18. The power consuming device comprises the battery according to any one of claims 1 to 18.

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