Batteries and power-consuming devices

Abstract

An embodiment of the present application provides a battery and a power consumption device that can improve the reliability of the battery, wherein the battery includes a plurality of battery cells arranged in a matrix along a first direction and a second direction, the first direction being perpendicular to the second direction, and an insulator including a first insulating portion extending along the first direction and a second insulating portion extending along the second direction, the first insulating portion being fixedly connected to the plurality of battery cells arranged along the first direction, and the second insulating portion being fixedly connected to the plurality of battery cells arranged along the second direction.

Description

[Technical Field]

[0001] This application claims priority to a Chinese patent application bearing application number 202310776824.7 and entitled "Battery and Power Consumption Device" filed with the State Intellectual Property Office of the People's Republic of China on June 28, 2023, the entire contents of which are incorporated herein by reference.

[0002] This application relates to the field of batteries, and more particularly to batteries and power consuming devices. [Background technology]

[0003] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. In this case, electric vehicles have become an important component of the sustainable development of the automotive industry due to their energy-saving and environmental protection advantages. For electric vehicles, battery technology is also a key factor in their development.

[0004] With the development of battery technology, various battery performances are improving, among which battery reliability is particularly important. If the reliability of a battery is too low, the battery cannot be used. Therefore, how to improve battery reliability remains a problem to be solved. Summary of the Invention [Problem to be solved by the invention]

[0005] Embodiments of the present application provide a battery and a power consuming device that can improve the reliability of the battery. [Means for solving the problem]

[0006] On a first side, a battery is provided, which includes: a plurality of battery cells arranged in a matrix along a first direction and a second direction, the first direction being perpendicular to the second direction; and an insulator including a first insulating portion extending along the first direction and a second insulating portion extending along the second direction, the first insulating portion being fixedly connected to the plurality of battery cells arranged along the first direction, and the second insulating portion being fixedly connected to the plurality of battery cells arranged along the second direction.

[0007] The insulator occupies a certain amount of space on the surface of the battery cell, separating the battery cell from other parts of the battery. This makes it less likely that the battery cell will come into contact with other parts of the battery, reducing the risk of short-circuiting the battery cell and improving battery reliability. The first and second insulating parts, which are arranged crosswise along the first and second directions, also provide good support, making the battery less susceptible to damage from external forces. In addition, the first and second insulating parts of the insulator secure multiple battery cells in the first and second directions, respectively, and integrate the multiple battery cells, improving the rigidity and mechanical strength of the entire battery and increasing the reliability and service life of the battery.

[0008] In some embodiments, the first insulating portion is fixedly connected to two adjacent battery cells arranged along the second direction, and / or the second insulating portion is fixedly connected to two adjacent battery cells arranged along the first direction.

[0009] The first insulating part and / or the second insulating part can be fixedly connected to a larger number of battery cells at the same time, which makes the connection between the multiple battery cells more stable and further improves the rigidity of the entire battery. In this way, the number of first insulating parts and second insulating parts can be reduced, which is advantageous in reducing the manufacturing cost of the insulating device.

[0010] In some embodiments, the first insulating portion and the second insulating portion are fixedly connected.

[0011] In this way, the structure of the insulator becomes more stable and relative movement is less likely to occur, which is advantageous for providing good insulating performance to the battery. In addition, the fixed connection of the first insulating part and the second insulating part as a single unit is advantageous for simplifying the installation process and improving production efficiency.

[0012] In some embodiments, the first insulating part has a first groove, and the first groove is engaged with the second insulating part, and / or the second insulating part has a second groove, and the second groove is engaged with the first insulating part.

[0013] By connecting the first insulating part and the second insulating part with an interlocking mechanism, the installation of both parts can be made flexible, and the positions of the first insulating part and the second insulating part can be adjusted according to the actual situation. If the first insulating part or the second insulating part is damaged, there is no need to replace the entire insulator, but only the damaged insulating part can be replaced, thereby reducing losses during the production process.

[0014] In some embodiments, the standoff is a one-piece structure.

[0015] In this way, the connection strength between the first insulating portion and the second insulating portion can be improved, making the first insulating portion and the second insulating portion less likely to separate, thereby improving the connection strength between the first insulating portion, the second insulating portion and the battery cell and improving the rigidity of the entire battery.

[0016] In some embodiments, the insulator includes a connecting portion, which is used to connect the first insulating portion and the second insulating portion in a plane formed by the first direction and the second direction.

[0017] The connection part improves the strength and stability of the insulator and increases the area that the insulator covers over the battery cells, achieving insulation over a larger range and further improving the insulating effect of the insulator.

[0018] In some embodiments, the battery cell includes an electrode terminal, and the connection portion is provided with a first via, which is used to shelter the electrode terminal.

[0019] The first vias can reduce interference between the electrode terminals and the insulators, allowing the electrode terminals to be connected to bus bars and thereby achieving electrical connection between different battery cells. In addition, the interfitting between the first vias and the electrode terminals can also exert a positioning effect on the position of the insulators in the battery, which is advantageous for improving the accuracy of the insulator installation position.

[0020] In some embodiments, a first barrier portion is provided around the first via, and the first barrier portion protrudes onto a surface of the insulator facing the battery cell.

[0021] The first barrier portion can reduce the possibility that the adhesive material attached to the surface of the connection portion comes into contact with the electrode terminal, thereby reducing the influence of the adhesive material on the connection between the bus bar and the electrode terminal. In addition, the first barrier portion can exert a certain barrier effect against solid particles, especially metal particles, thereby reducing the probability of short-circuiting the battery and improving the reliability of the battery.

[0022] In some embodiments, the first barrier portion abuts a surface of the battery cell facing the insulator.

[0023] In this way, the first barrier portion improves the sealing effect of the area surrounding the first via, and further exerts a barrier effect against adhesive materials or solid particles, thereby reducing the impact of the adhesive material on the connection between the bus bar and the electrode terminal.In addition, it can also exert a certain degree of barrier effect against solid particles, particularly metal particles, thus reducing the probability of battery short-circuiting and improving battery reliability.

[0024] In some embodiments, the insulator includes a bus bar, the bus bar corresponds to two adjacent first vias, and the two adjacent first vias correspond to electrode terminals of different battery cells, respectively.

[0025] By connecting the bus bar to the electrode terminal through the first via, electrical connection between multiple battery cells can be achieved without affecting the insulation performance between the battery cells and other parts of the battery.

[0026] In some embodiments, the surface of the standoff facing away from the battery cells at least partially protrudes into the surface of the busbar facing away from the battery cells.

[0027] In this way, the possibility of the battery housing becoming charged due to the bus bar coming into contact with the wall of the housing is reduced, which is advantageous in improving the insulating effect of the insulator, reducing the risk of short circuits in the battery cells, and improving the reliability of the battery.

[0028] In some embodiments, the battery cell includes a pressure relief mechanism, and the connection portion is provided with a second via, which is used to retreat the pressure relief mechanism.

[0029] The second via can provide a retreat space for the operation of the pressure relief mechanism, and when the internal pressure or temperature of the battery cell reaches a predetermined threshold, the pressure relief mechanism is more likely to operate to reduce the possibility of the battery cell exploding or catching fire.

[0030] In some embodiments, a second barrier portion is provided around the second via, and the second barrier portion protrudes onto a surface of the insulator facing the battery cell.

[0031] The second barrier portion can protect the pressure relief mechanism in the second via and restrict the flow of adhesive material to the pressure relief mechanism, thereby reducing the possibility that the adhesive material attached to the surface of the insulator will come into contact with the pressure relief mechanism, reducing the possibility that the pressure relief mechanism will be stuck and become difficult to operate, thereby improving the reliability of the battery. In addition, the second barrier portion can provide a certain degree of barrier effect against solid particles, thus reducing the probability of damage to the pressure relief mechanism and improving the reliability of the battery.

[0032] In some embodiments, the first insulating portion is provided with a third barrier portion that protrudes from a surface of the first insulating portion facing the battery cell and extends along the first direction, and / or the second insulating portion is provided with a fourth barrier portion that protrudes from a surface of the second insulating portion facing the battery cell and extends along the second direction.

[0033] The third barrier portion and / or the fourth barrier portion can provide protection for the gaps between adjacent battery cells and restrict the flow of adhesive material into the gaps between the battery cells, which is advantageous for achieving a tighter arrangement of the battery cells and thus reducing the impact of the adhesive material on the expansion and deformation of the battery cells and extending the service life of the battery. The third barrier portion and / or the fourth barrier portion can also provide a certain degree of barrier effect against solid particles, thereby reducing the probability that solid particles will fall into the gaps between two adjacent battery cells and thus reducing the probability that the solid particles will damage the battery cells, thereby improving the reliability of the battery.

[0034] In some embodiments, the projection of the third barrier portion in the third direction covers a gap between two adjacent battery cells arranged along the second direction, the third direction being perpendicular to the first and second directions, and / or the projection of the fourth barrier portion in the third direction covers a gap between two adjacent battery cells arranged along the first direction, the third direction being perpendicular to the first and second directions.

[0035] The third and / or fourth barrier layers cover the gaps between the battery cells, thereby restricting the flow of adhesive material into the gaps between the battery cells, which is advantageous for achieving a tighter arrangement of the battery cells, reducing the effect of the adhesive material on the expansion and deformation of the battery cells, and increasing the service life of the battery. Furthermore, the third and / or fourth barrier layers further reduce the probability of solid particles falling into the gaps between two adjacent battery cells, further reducing the probability of damage to the battery cells by solid particles, thereby improving the reliability of the battery.

[0036] In some embodiments, the first insulating portion is provided with two spaced-apart third barrier portions, the projections of the two third barrier portions in the third direction being located on both sides of a gap between two adjacent battery cells arranged along the second direction, the third direction being perpendicular to the first and second directions, and / or the second insulating portion is provided with two spaced-apart fourth barrier portions, the projections of the two fourth barrier portions in the third direction being located on both sides of a gap between two adjacent battery cells arranged along the first direction, the third direction being perpendicular to the first and second directions.

[0037] The third and / or fourth barrier sections can restrict the adhesive material or solid particles from penetrating the gaps between the battery cells, which is advantageous in reducing the likelihood of the adhesive material or solid particles penetrating the gaps, thereby enabling closer alignment of the battery cells and reducing the impact of the adhesive material or solid particles on the expansion and deformation of the battery cells, thereby extending the service life of the battery. In addition, providing barrier sections on both sides of the gaps between the battery cells reduces the amount of material required for the barrier sections, thereby reducing production costs and the weight of the battery.

[0038] In some embodiments, the standoff includes a sampling assembly, the sampling assembly being provided in the first insulating portion and / or the second insulating portion.

[0039] When the number of battery cells is relatively large, the sampling assembly can be mounted on the insulator to improve the integration of the sampling assembly and the insulator, thereby improving production efficiency and reducing the production cost of the sampling assembly.

[0040] In some embodiments, the light transmittance of the first insulating portion and / or the second insulating portion is 20% to 100%.

[0041] During the installation process, the first insulating part and / or the second insulating part are made of a material with a light transmittance of 20% to 100%, which is advantageous for monitoring and controlling the installation process, and allows for timely adjustments to improve the yield in the battery production process.

[0042] In some embodiments, the battery further includes an adhesive layer used to bond the standoff and the battery cell.

[0043] The adhesive layer can securely connect the insulator and the battery cell, which makes it difficult for the battery cell to separate from the insulator and cause insulation failure. In addition, the adhesive layer can fix the relative positions of multiple battery cells with the insulator, which makes it difficult for the battery cells to collide with each other and cause danger.

[0044] In some embodiments, the adhesive layer material is a photosensitive adhesive.

[0045] The photosensitive adhesive accelerates the curing process when irradiated with light, thereby reducing the battery manufacturing time and improving manufacturing efficiency.

[0046] In some embodiments, the battery includes a first housing portion that is a hollow structure having an opening and that houses a plurality of battery cells in the hollow structure, and a second housing portion that covers the first housing portion and is fixedly connected to the insulator.

[0047] By being fixedly connected to the insulating device, the second housing portion further fixes the position of the battery cell within the battery, reducing the battery cell's shaking within the first housing portion and reducing the possibility of the battery cell colliding and being damaged inside the battery, thereby improving the reliability of the battery.

[0048] In some embodiments, the second housing portion is adhesively secured to the standoff.

[0049] The adhesive can have a certain thickness when applied to the surface, filling the gap between the second housing part and the insulator and improving the adhesive strength between the second housing part and the insulator. By connecting the second housing part and the insulator with an adhesive, the vibration resistance of the battery can also be improved.

[0050] In a second aspect, there is provided a power consuming device, the power consuming device including a battery according to any one of the embodiments in the first aspect, the battery being adapted to provide electrical energy to the power consuming device. [Brief explanation of the drawings]

[0051] In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings necessary for the embodiments of the present application are briefly introduced below. The drawings described below are only some embodiments of the present application, and it is obvious that a person skilled in the art can obtain other drawings based on the drawings without paying creative labor. [Figure 1] 1 is a structural schematic diagram of a vehicle according to an embodiment of the present application; [Figure 2] 1 is a schematic exploded structural view of a battery according to an embodiment of the present application. [Figure 3] FIG. 2 is an exploded structural schematic diagram of another battery according to an embodiment of the present application. [Figure 4] 1 is a schematic exploded structural view of an insulating device according to an embodiment of the present application. [Figure 5] FIG. 10 is a structural schematic diagram of another insulator according to an embodiment of the present application. [Figure 6] FIG. 10 is a structural schematic diagram of another insulator according to an embodiment of the present application. [Figure 7] FIG. 7 is an enlarged schematic structural diagram of part A in FIG. 6. [Figure 8] FIG. 2 is an exploded structural schematic diagram of another battery according to an embodiment of the present application. [Figure 9] FIG. 2 is a structural schematic diagram of another battery according to an embodiment of the present application. [Figure 10] FIG. 10 is an enlarged schematic structural view of part B in FIG. 9. [Figure 11] FIG. 2 is a structural schematic diagram of another battery according to an embodiment of the present application. [Figure 12] FIG. 2 is a structural schematic diagram of another battery according to an embodiment of the present application. [Figure 13] FIG. 12 is an enlarged schematic structural diagram of part C in FIG. [Figure 14] FIG. 10 is a structural schematic diagram of another insulator according to an embodiment of the present application. [Figure 15] FIG. 13 is an enlarged schematic structural diagram of part D in FIG.

[0052] In the drawings, the drawings are not drawn to scale. DETAILED DESCRIPTION OF THE INVENTION

[0053] Hereinafter, the embodiments of the present application will be described in more detail in conjunction with the drawings and examples. The detailed description of the following examples and the drawings are used to exemplarily explain the principles of the present application, but cannot be used to limit the scope of the present application, i.e., the present application is not limited to the described examples.

[0054] In this description, unless otherwise specified, "plurality" means two or more, and the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "inner," and "outer" are merely for the purpose of facilitating and simplifying the description herein and do not indicate or imply that the referenced devices or elements must have a particular orientation, be configured, or operate in a particular manner, and therefore should not be construed as limitations on this description. Furthermore, the terms "first," "second," "third," and the like are merely for descriptive purposes and should not be construed as indicating or implying relative importance. "Perpendicular" does not mean perpendicular in the strict sense, but rather within a margin of error. "Parallel" does not mean parallel in the strict sense, but rather within a margin of error. All technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art. The terms used in this application are merely for the purpose of describing specific embodiments and are not intended to limit this application. The terms "comprises" and "having" and any variations thereof in the present specification, claims and above description of the drawings are intended to cover a non-exclusive "inclusion".

[0055] All directional terms used in the following description refer to the directions shown in the drawings and do not limit the specific structure of the present application. In the description of the present application, unless otherwise clearly specified or limited, the terms "attach," "connect," and "connect" should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrally connected, or may be directly connected or indirectly connected via an intermediate medium. Those skilled in the art will be able to understand the specific meanings of the above terms in the present application according to specific circumstances.

[0056] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described with reference to the embodiment may be included in at least one embodiment of the present application. Appearances of the term in various places in the present specification do not necessarily refer to the same embodiment, nor are they exclusive, independent, or alternative embodiments to other embodiments. Those skilled in the art will understand, both explicitly and implicitly, that the embodiments described herein can be combined with other embodiments.

[0057] The term "and / or" in this application is merely used to describe the relationship between related objects and indicates that three types of relationships may exist. For example, A and / or B may indicate that three situations exist: a situation in which A exists, a situation in which A and B exist, and a situation in which B exists. Also, the character " / " in this application generally indicates that the related objects before and after it are in an "or" relationship.

[0058] As used herein, "plurality" means two or more (including two); similarly, "groups" means two or more (including two groups), and "plurality" means two or more (including two).

[0059] In the embodiments of the present application, the same reference numerals indicate the same elements, and for the sake of brevity, detailed descriptions of the same elements in different embodiments will be omitted. It should be understood that the dimensions of the thickness, length, width, etc. of various elements in the embodiments of the present application shown in the drawings are merely illustrative and do not limit the present application in any way.

[0060] In this application, the battery cell may include a lithium ion secondary battery, a lithium ion primary battery, a lithium-sulfur battery, a sodium lithium ion battery, a sodium ion battery, a lithium metal battery, or a magnesium ion battery, etc., but is not limited to these in the embodiments of this application. The battery cell may have a cylindrical, flat, rectangular, or other shape, etc., but is not limited to these in the embodiments of this application. Battery cells are generally divided into three types based on packaging: prismatic battery cells, rectangular battery cells, and soft-pack battery cells, but is not limited to these in the embodiments of this application.

[0061] The battery referred to in the embodiments of this application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in this application may include a battery module or a battery pack. The battery generally includes a housing for packaging one or more battery cells. The housing can reduce the influence of liquids or other foreign matter on the charging or discharging of the battery cells.

[0062] A battery cell includes an electrode assembly and an electrolyte, and the electrode module consists of a positive electrode sheet, a negative electrode sheet, and a separator. The battery cell operates primarily through the movement of metal ions between the positive and negative electrode sheets. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode current collector. The positive electrode current collector without the positive electrode active material layer protrudes from the positive electrode current collector with the positive electrode active material layer coated thereon, and the positive electrode current collector without the positive electrode active material layer is called a positive electrode tab. Taking a lithium-ion battery as an example, the positive electrode current collector may be made of aluminum, and the positive electrode active material may be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector without the negative electrode active material layer protrudes from the negative electrode current collector with the negative electrode active material layer coated thereon. The negative electrode current collector without the negative electrode active material layer is called a negative electrode tab. The negative electrode current collector may be made of copper, and the negative electrode active material may be carbon, silicon, lithium metal, or a lithium alloy. To allow a large current to flow without fusing, multiple positive electrode tabs are stacked, and multiple negative electrode tabs are stacked. The separator may be made of polypropylene (PP) or polyethylene (PE). The electrode assembly in the present embodiment may have a wound structure or a stacked structure, but is not limited to these.

[0063] As battery technology advances, the number of battery cells contained in a battery is increasing, and the difficulty of fixing and insulating multiple battery cells is also increasing. In addition, the mechanical strength of a battery module consisting of multiple battery cells is relatively low, resulting in a problem of poor reliability during battery use.

[0064] In view of this, an embodiment of the present application provides a battery in which battery cells are insulated from other parts of the battery by an insulator, wherein the insulator includes a first insulating portion and a second insulating portion extending in a first direction, the first insulating portion and the second insulating portion being connected to a plurality of battery cells arranged in the first direction and a plurality of battery cells arranged in the second direction, respectively, and the first insulating portion and the second insulating portion can provide insulation to each battery cell and also improve the rigidity of the entire battery module formed from the plurality of battery cells, thereby improving the mechanical strength and reliability of the battery, which is advantageous for extending the service life of the battery.

[0065] The technical solutions described in the embodiments of the present application are applicable to various battery-powered electrical devices. The electrical devices may include vehicles, mobile phones, portable devices, laptops, ships, aerospace equipment, electric toys, and power tools. The vehicles may be fuel-powered vehicles, gas-powered vehicles, or new energy vehicles. The new energy vehicles may be electric vehicles (BEVs), hybrid vehicles, or range-extender vehicles. The aerospace equipment may include airplanes, rockets, space shuttles, and spacecraft. The electric toys may include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. The electric tools may include metal cutting tools, polishing tools, assembly tools, and railroad tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers. The embodiments of the present application do not particularly limit the electrical devices.

[0066] In the following embodiments, for convenience of explanation, the electricity-using device will be described as a vehicle.

[0067] For example, FIG. 1 shows a structural schematic diagram of a vehicle 1 according to one embodiment of the present application. The vehicle 1 may be a fuel-powered vehicle, a gas-powered vehicle, or a new-energy vehicle. The new-energy vehicle may be an electric vehicle (BEV), a hybrid vehicle, or a range-extender vehicle. A motor 40, a controller 30, and a battery 10 may be provided inside the vehicle 1, and the controller 30 may control the battery 10 to supply power to the motor 40. For example, the battery 10 may be provided at the bottom, front, or rear of the vehicle 1. The battery 10 may be used to power the vehicle 1. For example, the battery 10 may serve as the operating power source for the vehicle 1 and may be used for the circuit system of the vehicle 1, for example, to meet the operating power consumption needs during startup, navigation, and driving of the vehicle 1. In another embodiment of the present application, the battery 10 may not only serve as the operating power source for the vehicle 1, but also as the driving power source for the vehicle 1, thereby providing driving power to the vehicle 1 in place of or partially replacing fuel oil or natural gas.

[0068] To meet different power consumption needs, a battery may include multiple battery cells, which may be connected in series, parallel, or multiple rows, where multiple rows are a combination of series and parallel connections. The battery may also be called a battery pack. Preferably, multiple battery cells are connected in series, parallel, or multiple rows to form a battery module, and multiple battery modules are further connected in series, parallel, or multiple rows to form a battery. That is, multiple battery cells may directly form a battery, or may form a battery module, which then forms a battery.

[0069] For example, FIG. 2 shows a structural schematic diagram of a battery 10 according to one embodiment of the present application. The battery 10 may include at least one battery module 200. The battery module 200 includes a plurality of battery cells 20. The battery 10 may further include a housing 11, the interior of which is hollow, and the plurality of battery cells 20 are accommodated within the housing 11. FIG. 2 shows one possible implementation of the housing 11 according to one embodiment of the present application. As shown in FIG. 2, the housing 11 may include two parts, referred to herein as a first housing portion 111 and a second housing portion 112, respectively, and the first housing portion 111 and the second housing portion 112 are engaged with each other. The shapes of the first housing portion 111 and the second housing portion 112 may be determined according to the combined shape of the battery module 200, and at least one of the first housing portion 111 and the second housing portion 112 has an opening. For example, as shown in FIG. 2, the first housing part 111 and the second housing part 112 may both be hollow rectangular parallelepipeds and each may have only one open side, the opening of the first housing part 111 and the opening of the second housing part 112 being arranged opposite each other, and the first housing part 111 and the second housing part 112 being engaged with each other to form a housing 11 having a closed chamber.

[0070] 2, only one of the first housing portion 111 and the second housing portion 112 may be a hollow rectangular parallelepiped having an opening, and the other may be plate-shaped to cover the opening. For example, in the example where the second housing portion 112 is a hollow rectangular parallelepiped with only one open surface and the first housing portion 111 is plate-shaped, the first housing portion 111 may be placed over the opening of the second housing portion 112 to form a housing 11 having a closed chamber, and the chamber may be used to house multiple battery cells 20. The multiple battery cells 20 are combined in parallel, series, or multiple rows and then housed in the housing 11 formed by engaging the first housing portion 111 and the second housing portion 112.

[0071] Preferably, the battery 10 may further include other structures, which will not be described here in detail. For example, the battery 10 may further include bus bars, which are used to realize electrical connections between the multiple battery cells 20, such as parallel connections, series connections, or multiple row connections. Specifically, the bus bars may connect the electrode terminals of the battery cells 20 to realize electrical connections between the battery cells 20. Furthermore, the bus bars may be fixed to the electrode terminals of the battery cells 20 by welding. Electrical energy from the multiple battery cells 20 may also be extracted through the housing 11 via a conductive mechanism.

[0072] According to different power demands, the number of battery cells 20 in the battery module 200 may be set to any value. The plurality of battery cells 20 may be connected in series, parallel, or multiple rows to achieve a relatively large capacity or power. Since each battery 10 may include a relatively large number of battery cells 20, the battery cells 20 are set in groups for ease of installation, and each group of battery cells 20 constitutes a battery module 200. The number of battery cells 20 included in the battery module 200 is not limited and may be set according to demand.

[0073] The battery 10 may include multiple battery modules 200, which may be connected in series, parallel, or multiple rows.

[0074] FIG. 3 is a schematic exploded view of a battery 10 according to an embodiment of the present invention. The battery 10 shown in FIG.

[0075] The plurality of battery cells 20 are arranged in a matrix along a first direction X and a second direction Y, with the first direction X being perpendicular to the second direction Y. The insulator 12 includes a first insulating portion 121 extending along the first direction X and a second insulating portion 122 extending along the second direction Y, with the first insulating portion 121 fixedly connected to the plurality of battery cells 20 arranged along the first direction X and the second insulating portion 122 fixedly connected to the plurality of battery cells 20 arranged along the second direction Y.

[0076] For ease of understanding and explanation, only rectangular parallelepiped battery cells 20 are described in the embodiments of the present application, but it should be understood that the embodiments of the present application are also applicable to cylindrical battery cells 20 or soft-pack battery cells 20, and the embodiments of the present application are not limited thereto.

[0077] 3 , the matrix arrangement means that the plurality of battery cells 20 are arranged along a first direction X and a second direction Y. The first direction X may be a direction extending along one side of the battery cell 20, e.g., the length direction of the battery cell 20, and the second direction Y is perpendicular to the first direction X, e.g., the thickness direction of the battery cell 20. In some embodiments, the electrode terminals 21 of the plurality of battery cells 20 may be located on a plane formed by the first direction X and the second direction Y.

[0078] The plurality of battery cells 20 being arranged in a matrix along the first direction X and the second direction Y means that the plurality of battery cells 20 are arranged in a rectangle on a plane formed by the first direction X and the second direction Y. Specifically, the plurality of battery cells 20 may be arranged in a plurality of rows, with the same number of battery cells 20 in each row, or the plurality of battery cells 20 may be arranged in a plurality of columns, with the same number of battery cells 20 in each column.

[0079] The insulator 12 refers to a structure that insulates the battery cell 20 of the battery 10 from other parts of the battery 10. Specifically, the insulator 12 may occupy a certain amount of space on the surface of the battery cell 20, thereby making it difficult for the battery cell 20 to come into contact with other parts of the battery 10, thereby achieving insulation for the battery cell 20. In some embodiments, the insulator 12 may be provided between the battery cell 20 and the casing 11 of the battery 10 to insulate the battery cell 20 from the casing 11 of the battery 10. Specifically, the insulator 12 may be provided between a plane on which the electrode terminal 21 of the battery cell 20 is located and a first wall, and the first wall may be a wall of the casing 11 that is provided opposite the plane on which the electrode terminal 21 is located. The insulator 12 may be made of an insulating material, and by occupying a certain amount of space between the battery cell 20 and the casing 11, it makes it difficult for the battery cell 20 to come into contact with the wall of the casing 11, thereby achieving insulation between the electrode terminal 21 and the casing 11 of the battery 10.

[0080] The first insulating portion 121 is a portion of the insulator 12 that extends along the first direction X, and the second insulating portion 122 is a portion of the insulator 12 that extends along the second direction Y. The first insulating portion 121 and the second insulating portion 122 may be provided on the same plane. In some embodiments, the first insulating portion 121 and the second insulating portion 122 may be integral, i.e., a one-piece molded structure, or preferably, the first insulating portion 121 and the second insulating portion 122 may be two separate portions that are interconnected by a connecting structure. In some embodiments, the insulator 12 may include at least one first insulating portion 121 and at least one second insulating portion 122, and each of the at least one first insulating portion 121 may correspond to a group of battery cells 20 arranged along the first direction X, and each of the at least one second insulating portion 122 may correspond to a group of battery cells 20 arranged along the second direction Y. FIG. 3 shows that the insulator 12 includes a plurality of first insulating portions 121 and a plurality of second insulating portions 122, and as shown in FIG. 3, the plurality of first insulating portions 121 and the plurality of second insulating portions 122 may form a mesh-like insulator 12.

[0081] The first insulating portion 121 is fixedly connected to the plurality of battery cells 20 arranged along the first direction X, thereby connecting the plurality of battery cells 20 arranged along the first direction X together, thereby reducing vibration of the battery cells 20 and collision between adjacent battery cells 20. Similarly, the second insulating portion 122 is fixedly connected to the plurality of battery cells 20 arranged along the second direction Y, thereby connecting the plurality of battery cells 20 arranged along the second direction Y together. In some embodiments, the first insulating portion 121 and the second insulating portion 122 form a mesh-shaped insulator 12, in which case the plurality of battery cells 20 can be fixed in the first direction X and the second direction Y, thereby further improving stability between the plurality of battery cells 20.

[0082] In some embodiments, the first insulating portion 121 may be fixedly connected to one group of battery cells 20 arranged along the first direction X, and in this case, the battery cells 20 of each group may correspond to one first insulating portion 121. Preferably, the first insulating portion 121 may be fixedly connected to two adjacent groups of battery cells 20 arranged along the first direction X at the same time, and in this case, two adjacent groups of battery cells 20 arranged along the first direction X correspond to one first insulating portion 121. Similarly, the second insulating portion 122 may be fixedly connected to one group of battery cells 20 arranged along the second direction Y, and may be fixedly connected to two adjacent groups of battery cells 20 arranged along the second direction Y at the same time.

[0083] The insulator 12 occupies a certain amount of space on the surface of the battery cell 20, separating the battery cell 20 from other parts of the battery 10. This makes it less likely that the battery cell 20 will come into contact with other parts of the battery 10, reducing the risk of short-circuiting the battery cell 20 and improving the reliability of the battery 10. The first insulating portion 121 and the second insulating portion 122, which are arranged crosswise along the first direction X and the second direction Y, also provide good support, making the battery 10 less susceptible to damage from external forces. In addition, the first insulating portion 121 and the second insulating portion 122 of the insulator 12 fix the multiple battery cells 20 in the first direction X and the second direction Y, respectively, and can integrate the multiple battery cells 20, improving the rigidity and mechanical strength of the entire battery 10 and increasing the reliability and service life of the battery 10.

[0084] According to some embodiments of the present application, preferably, the first insulating portion 121 is fixedly connected to two adjacent battery cells 20 arranged along the second direction Y, and / or the second insulating portion 122 is fixedly connected to two adjacent battery cells 20 arranged along the first direction X.

[0085] The first insulating portion 121 may be fixedly connected to the plurality of battery cells 20 arranged along the first direction X, and at the same time, fixedly connected to at least two adjacent battery cells 20 arranged along the second direction Y. In this case, the first insulating portion 121 may cover at least a portion of the gap between two adjacent battery cells 20 arranged along the second direction Y. In some embodiments, the first insulating portion 121 may be fixedly connected to two adjacent groups of the plurality of battery cells 20 arranged along the first direction X.

[0086] Similar to the first insulating portion 121, the second insulating portion 122 may be simultaneously connected to at least two adjacent battery cells 20 arranged along the first direction X. In this case, the second insulating portion 122 may cover at least a portion of the gap between the two adjacent battery cells 20 arranged along the first direction X.

[0087] In one possible embodiment, the first insulating portion 121 is fixedly connected to two adjacent battery cells 20 arranged along the second direction Y, and the second insulating portion 122 is not fixedly connected to two adjacent battery cells 20 arranged along the first direction X. In another possible embodiment, the second insulating portion 122 is fixedly connected to two adjacent battery cells 20 arranged along the first direction X, and the first insulating portion 121 is not fixedly connected to two adjacent battery cells 20 arranged along the second direction Y. In another possible embodiment, the first insulating portion 121 is fixedly connected to two adjacent battery cells 20 arranged along the second direction Y, and at the same time, the second insulating portion 122 is also fixedly connected to two adjacent battery cells 20 arranged along the first direction X.

[0088] The first insulating portion 121 and / or the second insulating portion 122 can be fixedly connected to a larger number of battery cells 20 at the same time, thereby making the connection between the plurality of battery cells 20 more stable and further improving the rigidity of the entire battery 10. In this way, the number of first insulating portions 121 and second insulating portions 122 can be reduced, which is advantageous in reducing the manufacturing cost of the insulator 12.

[0089] According to some embodiments of the present application, preferably, the first insulating portion 121 and the second insulating portion 122 are fixedly connected.

[0090] The fixed connection between the first insulating part 121 and the second insulating part 122 means that the relative positions of the first insulating part 121 and the second insulating part 122 are fixed. In one possible embodiment, the fixed connection between the first insulating part 121 and the second insulating part 122 may be achieved by engagement, such as a locking connection, a shaft hole engagement, or a groove engagement. In another possible embodiment, the fixed connection between the first insulating part 121 and the second insulating part 122 may be achieved by fasteners, such as bolts or screws. In another possible embodiment, the fixed connection between the first insulating part 121 and the second insulating part 122 may be achieved by adhesive bonding.

[0091] The fixed connection between the first insulating part 121 and the second insulating part 122 makes the structure of the insulator 12 more stable and makes it less likely for relative movement to occur, which is advantageous for providing good insulating performance to the battery 10. In addition, the fixed connection between the first insulating part 121 and the second insulating part 122 as an integral part simplifies the installation process and is advantageous for improving production efficiency.

[0092] According to some embodiments of the present application, preferably, the first insulating portion 121 is provided with a first groove 131, and the first groove 131 is engaged with the second insulating portion 122; and / or

[0093] The second insulating portion 122 is provided with a second groove 132 , and the second groove 132 is engaged with the first insulating portion 121 .

[0094] The first insulating part 121 and / or the second insulating part 122 can be engaged with each other by providing a groove, as shown in FIG. 4, which shows a schematic exploded structure of one of the insulators 12.

[0095] In one possible embodiment, the first insulating portion 121 may be provided with a first groove 131, and preferably, the first groove 131 may be provided on the surface of the first insulating portion 121 facing the second insulating portion 122. In some examples, the dimension of the first groove 131 in the first direction X and the dimension of the second insulating portion 122 in the first direction X are approximately equal, in which case the first groove 131 engages with the second insulating portion 122 to limit the position of the second insulating portion 122 in the first direction X.

[0096] In one possible embodiment, the second insulating portion 122 may be provided with a second groove 132, and preferably, the second groove 132 may be provided on the surface of the second insulating portion 122 facing the first insulating portion 121. In some examples, the dimension of the second groove 132 in the second direction Y is approximately equal to the dimension of the first insulating portion 121 in the second direction Y, in which case the second groove 132 engages with the first insulating portion 121 to limit the position of the first insulating portion 121 in the second direction Y.

[0097] In one possible embodiment, the first insulating portion 121 is provided with a first groove 131, and the second insulating portion 122 is provided with a second groove 132, the first groove 131 and the second groove 132 being arranged opposite each other. The dimension of the first groove 131 in the first direction X is approximately equal to the dimension of the second insulating portion 122 in the first direction X, and the dimension of the second groove 132 in the second direction Y is approximately equal to the dimension of the first insulating portion 121 in the second direction Y, so that the first groove 131 and the second groove 132 are engaged with each other, thereby simultaneously restricting the positions of the first insulating portion 121 and the second insulating portion 122 in the first direction X and the second direction Y.

[0098] By connecting the first insulating part 121 and the second insulating part 122 with each other, the installation of both parts can be made flexible, and the positions of the first insulating part 121 and the second insulating part 122 can be adjusted according to the actual situation. If the first insulating part 121 or the second insulating part 122 is damaged, it is not necessary to replace the entire insulator 12, but only the damaged insulating part can be replaced, thereby reducing losses during the production process.

[0099] According to some embodiments of the present application, preferably, standoff 12 is of one-piece construction.

[0100] As shown in Fig. 5, the insulator 12 has an integrally molded structure. For example, the first insulating part 121 and the second insulating part 122 may be integrally molded using a mold, and in this case, the first insulating part 121 and the second insulating part 122 are fixedly connected.

[0101] In this way, the connection strength between the first insulating portion 121 and the second insulating portion 122 can be improved, making the first insulating portion 121 and the second insulating portion 122 less likely to separate, thereby improving the connection strength between the first insulating portion 121, the second insulating portion 122 and the battery cell 20 and improving the rigidity of the entire battery 10.

[0102] According to some embodiments of the present application, preferably, the insulator 12 includes a connecting portion 123, which is used to connect the first insulating portion 121 and the second insulating portion 122 in a plane formed by the first direction X and the second direction Y.

[0103] 6 and 7 show the structure of one insulator 12 according to an embodiment of the present invention, with FIG. 7 being an enlarged schematic view of portion A in FIG. 6. In FIGS. 6 and 7, the first insulating portion 121 extends along the first direction X, and the second insulating portion 122 extends along the second direction Y. The first insulating portion 121 and the second insulating portion 122 are interconnected to form a mesh-like structure, and the connecting portion 123 is a structure that fills at least a portion of the mesh in the mesh-like structure. Specifically, at least one end of the connecting portion 123 along the first direction X is connected to the second insulating portion 122, and at least one end of the connecting portion 123 along the second direction Y is connected to the first insulating portion 121. In some embodiments, the connecting portion 123 may be made of an insulating material. In some embodiments, the first insulating portion 121, the second insulating portion 122, and the connecting portion 123 are integrally molded.

[0104] In some embodiments, a reinforcing structure 124 may be provided between adjacent connection portions 123. As shown in FIG. 7 , a reinforcing structure 124 may be provided between two connection portions 123 adjacent in the second direction Y, and multiple reinforcing structures 124 may be provided at intervals along the first direction X. Preferably, the reinforcing structure 124 may simultaneously connect the first insulating portion 121 and the connection portions 123 on both sides of the first insulating portion 121. In some embodiments, a reinforcing structure 124 may also be provided on the edge of the insulator 12 to improve the strength of the edge of the insulator 12. In some embodiments, the reinforcing structure 124 may include a reinforcing rib. In some embodiments, the first insulating portion 121, the second insulating portion 122, the connection portions 123, and the reinforcing structure 124 are an integrally molded structure.

[0105] The connection portion 123 improves the strength and stability of the insulator 12 and increases the covering area of ​​the insulator 12 relative to the battery cell 20, thereby achieving insulation over a larger range and further improving the insulating effect of the insulator 12.

[0106] According to some embodiments of the present application, the battery cell 20 preferably includes an electrode terminal 21, and the connection portion 123 is provided with a first via 1231, which is used to shelter the electrode terminal 21.

[0107] Fig. 8 shows a schematic exploded view of the battery 10 according to an embodiment of the present invention, Fig. 9 shows a schematic view of the mounting structure of the insulator 12 and the battery cell 20, and Fig. 10 is an enlarged schematic view of part B in Fig. 9. As shown in Figs. 6 to 10, the first via 1231 may be provided in the connecting portion 123, and the connecting portion 123 may pass through in the third direction Z. The third direction Z may be perpendicular to the plane formed by the first direction X and the second direction Y, and may refer to the thickness direction of the insulator 12.

[0108] The first vias 1231 are provided corresponding to the electrode terminals 21, and preferably, each first via 1231 in the insulator 12 corresponds to one electrode terminal 21. The first vias 1231 allow the electrode terminals 21 to retreat, so that the electrode terminals 21 and the insulator 12 do not interfere with each other. As shown in Figures 9 and 10, at least a portion of the electrode terminal 21 is accommodated in the first via 1231, and the position where the electrode terminal 21 is located is not covered by the insulator 12. In this case, the electrode terminal 21 is connected to the bus bar 22, thereby achieving electrical connection between different battery cells 20.

[0109] The first vias 1231 can reduce interference between the electrode terminals 21 and the insulators 12, allowing the electrode terminals 21 to be connected to the bus bars 22, thereby realizing electrical connection between different battery cells 20. In addition, the interfitting between the first vias 1231 and the electrode terminals 21 can also exert a positioning effect on the position of the insulators 12 on the battery 10, which is advantageous in improving the accuracy of the installation position of the insulators 12.

[0110] According to some embodiments of the present application, preferably, the battery cell 20 includes a pressure relief mechanism 23, and the connection portion 123 is provided with a second via 1232, which is used to evacuate the pressure relief mechanism 23.

[0111] The pressure relief mechanism 23 is an element or member that activates to relieve the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a predetermined threshold. The term "activate" refers to the operation of the pressure relief mechanism 23 to relieve the internal pressure and temperature of the battery cell 20. The operation of the pressure relief mechanism 23 may include, but is not limited to, at least a portion of the pressure relief mechanism 23 rupturing, tearing, or melting. After the pressure relief mechanism 23 activates, high-temperature and high-pressure materials inside the battery cell 20 are discharged to the outside through the pressure relief mechanism 23. The predetermined threshold may be adjusted according to design needs. The predetermined threshold may be determined by one or more materials of the positive electrode sheet, negative electrode sheet, electrolyte, and separator in the battery cell 20. The pressure relief mechanism 23 may employ, for example, a pressure-sensitive or temperature-sensitive element or member. That is, when the internal pressure or temperature of the battery cell 20 reaches a predetermined threshold, the pressure relief mechanism 23 activates to form a passageway for relieving the internal pressure. The discharged materials from the battery cell 20 may include, but are not limited to, electrolyte, dissolved or split positive and negative electrode sheets, separator fragments, high-temperature and high-pressure gases resulting from reactions, flames, and the like.

[0112] The pressure relief mechanism 23 in the battery cell 20 has an important impact on the reliability of the battery 10. For example, if a short circuit or overcharge occurs in the battery cell 20, thermal runaway may occur inside the battery cell 20, causing a sudden rise in pressure or temperature. In this case, the pressure relief mechanism 23 can be activated to relieve the internal pressure and temperature to the outside, thereby reducing the possibility of the battery cell 20 exploding or catching fire.

[0113] As shown in FIGS. 6 to 10 , the second vias 1232 may be provided in the connecting portion 123 and may penetrate the connecting portion 123 in the third direction Z. The second vias 1232 may be provided corresponding to the pressure relief mechanisms 23, and preferably, each of the second vias 1232 in the insulator 12 may correspond to one pressure relief mechanism 23. The fact that the second vias 1232 accommodate the pressure relief mechanisms 23 means that the second vias 1232 can reserve a certain amount of space for the operation of the pressure relief mechanisms 23, allowing the pressure relief mechanisms 23 to use this space to relieve internal pressure and temperature. As shown in FIGS. 9 and 10 , in some embodiments, an accommodation space formed by the second vias 1232 may provide space for the operation of the pressure relief mechanisms 23. Preferably, at least a portion of the pressure relief mechanisms 23 may be accommodated in the second vias 1232.

[0114] The second via 1232 can provide a retreat space for the operation of the pressure relief mechanism 23, and when the internal pressure or temperature of the battery cell 20 reaches a predetermined threshold, the pressure relief mechanism 23 is more likely to operate to reduce the possibility of the battery cell 20 exploding or catching fire.

[0115] According to some embodiments of the present application, preferably, the insulator 12 includes a bus bar 22, and the bus bar 22 corresponds to two adjacent first vias 1231, and the two adjacent first vias 1231 each correspond to electrode terminals 21 of different battery cells 20.

[0116] The busbars 22 may be used to realize electrical connections between the plurality of battery cells 20, such as parallel connections, series connections, or multiple row connections. Specifically, the busbars 22 may connect the electrode terminals 21 of the battery cells 20 to realize the electrical connections between the battery cells 20. Furthermore, the busbars 22 may be fixed to the electrode terminals 21 of the battery cells 20 by welding, and the electrical energy of the plurality of battery cells 20 may be further extracted through the casing 11 via a conductive mechanism.

[0117] 8 to 11, the busbar 22 is used to connect the electrode terminals 21 of two adjacent battery cells 20, and the electrode terminals 21 correspond to the first vias 1231. In this case, the busbar 22 must correspond to two adjacent first vias 1231, and among these, the two adjacent first vias 1231 correspond to the electrode terminals 21 of different battery cells 20. Thus, when the insulator 12 is provided on the surface of the battery cell 20, the busbar 22 can realize a series or parallel connection of the two adjacent battery cells 20. In the embodiment of the present application, the first vias 1231 provide space for the connection between the busbar 22 and the electrode terminals 21, and the busbar 22 may be connected to the electrode terminals 21 by covering the first vias 1231.

[0118] In one possible embodiment, the insulator 12 and the bus bar 22 may be two separate components, and the battery cell 20 may be fixedly connected to the insulator 12 by adhesive or the like, and the bus bar 22 is further fixedly connected to the electrode terminal 21 of the battery cell 20 through the first via 1231 by welding or the like.

[0119] 12 , in one possible embodiment, the insulator 12 and the bus bar 22 may be manufactured in advance as an integrated connection assembly 13, in which case the connection assembly 13 may be provided as an integrated unit on the surface of the battery cell 20 during the installation process. In the connection assembly 13, the bus bar 22 corresponds to two adjacent first vias 1231, and in this case, when the connection assembly 13 and the battery cell 20 are fixedly connected, these two adjacent first vias 1231 correspond to the electrode terminals 21 of different battery cells 20. By using the connection assembly 13 to install multiple battery cells 20, the rigidity of the entire battery 10 can be improved, the installation steps can be simplified, and installation efficiency can be improved.

[0120] By connecting the bus bar 22 to the electrode terminal 21 through the first via 1231, electrical connection between multiple battery cells 20 can be achieved without affecting the insulation performance between the battery cell 20 and other parts of the battery 10.

[0121] According to some embodiments of the present application, preferably, the surface of the insulator 12 remote from the battery cell 20 at least partially protrudes onto the surface of the bus bar 22 remote from the battery cell 20 .

[0122] Figure 13 shows an enlarged structural schematic diagram of part C in Figure 11, and as shown in Figure 13, the surface of the insulator 12 farther from the battery cell 20 is the surface of the insulator 12 that deviates from the battery cell 20 in the third direction Z, and the surface of the bus bar 22 farther from the battery cell 20 is the surface of the bus bar 22 that is not connected to the electrode terminal 21 in the third direction Z.

[0123] The insulator 12 includes a first insulating portion 121 and a second insulating portion 122, and may preferably include a connecting portion 123, and may preferably further include a reinforcing structure 124. Due to these structures in the insulator 12, the thickness of the insulator 12 may vary at different positions, and in the embodiment of the present application, at least a portion of the surface of the insulator 12 farther from the battery cell 20 in the third direction Z protrudes toward the surface of the bus bar 22 farther from the battery cell 20, and in combination with Figure 13, it can be seen that at least a portion of the insulator 12 is higher than the plane on which the bus bar 22 is located.

[0124] Preferably, the relationship between the surface of the insulator 12 away from the battery cell 20 and the surface of the busbar 22 away from the battery cell 20 may be expressed by the distance between different positions of the insulator 12 and the surface of the battery cell 20 facing the insulator 12.

[0125] 13 , taking as an example the reinforcing structure 124 as the highest point protruding from the surface of the insulator 12 far from the battery cell 20, the maximum distance between the surface of the insulator 12 far from the battery cell 20 and the surface of the battery cell 20 adjacent toward the insulator 12 is H1. If there is an area in the insulator 12 that is higher than the reinforcing structure 124, it should be understood that H1 means the distance between the position of the insulator 12 farthest from the battery cell 20 in the third direction Z and the surface of the battery cell 20 adjacent toward the insulator 12.

[0126] Similarly, the busbar 22 may have several structures due to differences in thickness at different positions on the busbar 22. As shown in FIG. 13 , taking the example where the distance between the region of the busbar 22 connected to the electrode terminal 21 and the adjacent surface of the battery cell 20 facing the insulator 12 as the farthest, the maximum distance between the surface of the busbar 22 farthest from the battery cell 20 and the adjacent surface of the battery cell 20 facing the insulator 12 is H2. It should be understood that H2 means the distance between the position of the busbar 22 farthest from the battery cell 20 in the third direction Z and the adjacent surface of the battery cell 20 facing the insulator 12.

[0127] In the embodiment of the present application, H1>H2, that is, there is at least a portion of the surface of the insulator 12 farther from the battery cell 20 that is higher than the surface of the busbar 22 farther from the battery cell 20, and in this case, inside the battery 10, the busbar 22 is less likely to come into contact with the wall of the housing 11 than the insulator 12.

[0128] In one possible embodiment, the portion of the insulator 12 that protrudes from the surface of the busbar 22 that is far from the battery cells 20 may be connected to the inner wall of the housing 11; for example, the insulator 12 may abut or be glued to the inner wall of the housing 11. Because at least a portion of the insulator 12 protrudes from the surface of the busbar 22 that is far from the battery cells 20, the busbar 22 is unlikely to come into contact with the inner wall of the housing 11 when the insulator 12 is connected to the inner wall of the housing 11.

[0129] In this way, the possibility of the housing 11 becoming charged due to the bus bar 22 coming into contact with the wall of the housing 11 of the battery 10 can be reduced, which is advantageous in improving the insulating effect of the insulator 12, reducing the risk of short-circuiting of the battery cell 20, and improving the reliability of the battery 10.

[0130] According to some embodiments of the present application, the insulator 12 preferably includes a sampling assembly 125, which is provided in the first insulating portion 121 and / or the second insulating portion 122.

[0131] The sampling assembly 125 is used to sample signals from the battery cells 20. For example, the sampling assembly 125 may be configured to be used to acquire parameters such as the voltage and current of the battery cells 20. Preferably, the sampling assembly 125 may be configured to be used to acquire parameters such as the temperature and expansion force of the battery cells 20. The sampling assembly 125 may include a flexible circuit board, a printed circuit board, a conductor, etc.

[0132] In some embodiments, the sampling assembly 125 may be provided in the first insulating portion 121 and may sample parameters of the battery cells 20 located on both sides of the first insulating portion 121 in the second direction Y, as shown in Figures 11 to 13. In this case, the sampling assembly 125 may be integrated into the first insulating portion 121 of the insulator 12, and there is no need to provide an additional mounting member for the sampling assembly 125.

[0133] In some embodiments, the sampling assembly 125 may be provided in the second insulating portion 122 and may sample parameters of the battery cells 20 located on both sides of the second insulating portion 122 in the first direction X. In this case, the sampling assembly 125 may be integrated into the second insulating portion 122 of the insulator 12, and there is no need to provide an additional mounting member for the sampling assembly 125.

[0134] In some embodiments, the sampling assembly 125 may be simultaneously provided on the first insulating portion 121 and the second insulating portion 122 to sample parameters of the battery cells 20 located on both sides of the first insulating portion 121 and the second insulating portion 122 in the first direction X and the second direction Y. Preferably, the sampling assembly 125 may be integrated into the first insulating portion 121 and the second insulating portion 122 of the insulator 12.

[0135] In one possible embodiment, the sampling assembly 125, the busbar 22, and the insulator 12 are separate components that may be further attached to the battery cell 20 during the installation process. In another possible embodiment, the insulator 12 and the busbar 22 are attached to the battery cell 20 as a single unit, and the sampling assembly 125 is further attached as a single unit. In another possible embodiment, the connection assembly 13 may include the sampling assembly 125, i.e., the connection assembly 13 may include the sampling assembly 125, the insulator 12, and the busbar 22, i.e., the sampling assembly 125, the insulator 12, and the busbar 22 may be pre-fabricated as a single connection assembly 13, which is then attached as a single unit to the surface of the battery cell 20 during the installation process. Attaching multiple battery cells 20 using the connection assembly 13 can improve the overall rigidity of the battery 10 while simplifying the installation steps and improving installation efficiency.

[0136] When the number of battery cells 20 is relatively large, by providing the sampling assembly 125 in the insulator 12, the integration degree of the sampling assembly 125 and the insulator 12 can be improved, thus improving production efficiency and reducing the production cost of the sampling assembly 125.

[0137] According to some embodiments of the present application, the sampling assembly 125 is preferably close to the electrode terminal 21 .

[0138] The sampling assembly 125 may be provided at a position close to the electrode terminal 21 of the first insulating portion 121 and / or the second insulating portion 122, for example, at an edge of the first insulating portion 121 and / or the second insulating portion 122 close to the electrode terminal 21. In some embodiments, the sampling assembly 125 may be connected to the bus bar 22. Preferably, the bus bar 22 may be provided with a groove, and an accommodating space formed by the groove is used to accommodate at least a portion of the sampling assembly 125. In this way, parameters of the battery cells 20 can be sampled without affecting the electrical connections between the battery cells 20.

[0139] In this way, it is advantageous for the sampling assembly 125 to sample the relevant parameters of the battery cell 20, and the accuracy of the parameters of the battery cell 20 acquired by the sampling assembly 125 can also be improved.

[0140] According to some embodiments of the present application, a first barrier portion 1261 is preferably provided around the first via 1231, and the first barrier portion 1261 protrudes onto the surface of the insulator 12 facing the battery cell 20.

[0141] Fig. 14 shows a structural schematic diagram of an insulator 12 according to an embodiment of the present application, and specifically, Fig. 14 shows the structure of the surface of the insulator 12 facing the battery cell 20. Fig. 15 is an enlarged structural schematic diagram of part D in Fig. 14.

[0142] The first barrier portion 1261 may be provided around the first via 1231 and protrude onto the surface of the insulator 12 facing the battery cell 20. Specifically, the first barrier portion 1261 may protrude onto the surface of the connection portion 123 facing the battery cell 20. For example, the first barrier portion 1261 may be ring-shaped and surround the first via 1231. Preferably, the first barrier portion 1261 may surround the first via 1231 along the edge of the first via 1231. Preferably, the side wall of the inner ring of the first barrier portion 1261 may be flush with the hole wall of the first via 1231. In one possible embodiment, the first barrier portion 1261 may be provided around each first via 1231. Preferably, the first barrier portion 1261 may be integrally formed with the insulator 12. Preferably, the first barrier portion 1261 may be a weather strip or a foam adhesive provided on the surface of the insulator 12 facing the battery cell 20.

[0143] In some embodiments, the surface of the insulator 12 facing the battery cell 20 may be coated with an adhesive material to bond the insulator 12 to the battery cell 20, and the first barrier portion 1261 may restrict the flow of the adhesive material into the first via 1231, reducing the likelihood that the adhesive material attached to the surface of the connection portion 123 will come into contact with the electrode terminal 21 in the first via 1231. In some embodiments, the first barrier portion 1261 may have some barrier effect against solid particles; for example, the first barrier portion 1261 may reduce the likelihood that metal particles will come into contact with the electrode terminal 21, thereby reducing the probability of short-circuiting the battery 10.

[0144] The first barrier portion 1261 can reduce the possibility that the adhesive material attached to the surface of the connection portion 123 will come into contact with the electrode terminal 21, thereby reducing the influence of the adhesive material on the connection between the bus bar 22 and the electrode terminal 21. In addition, the first barrier portion 1261 can exert a certain degree of barrier effect against solid particles, particularly metal particles, thereby reducing the probability of short-circuiting the battery 10 and improving the reliability of the battery 10.

[0145] According to some embodiments of the present application, the first barrier portion 1261 preferably abuts against the surface of the battery cell 20 facing the insulator 12 .

[0146] In the third direction Z, the surface of the first barrier portion 1261 facing the battery cell 20 and the surface of the battery cell 20 facing the insulator 12 are in contact with each other. Preferably, the first barrier portion 1261 may be made of an elastic material, and is compressed to a certain extent during the installation process of the battery 10, thereby improving the degree of sealing between the first barrier portion 1261 and the battery cell 20 and improving the barrier function of the first barrier portion 1261 against adhesive materials or solid particles.

[0147] The contact of the first barrier portion 1261 with the surface of the battery cell 20 improves the sealing effect of the first barrier portion 1261 around the first via 1231, and can also exert a barrier effect against adhesive materials or solid particles, thereby reducing the impact of the adhesive material on the connection between the bus bar 22 and the electrode terminal 21, and can also exert a certain degree of barrier effect against solid particles, particularly metal particles, thereby reducing the probability of short-circuiting the battery 10 and improving the reliability of the battery 10.

[0148] According to some embodiments of the present application, a second barrier portion 1262 is preferably provided around the second via 1232, and the second barrier portion 1262 protrudes onto the surface of the insulator 12 facing the battery cell 20.

[0149] As shown in FIGS. 14 and 15 , the second barrier portion 1262 may be provided around the second via 1232 and protrude onto the surface of the insulator 12 facing the battery cell 20. Specifically, the second barrier portion 1262 may protrude onto the surface of the connection portion 123 facing the battery cell 20. For example, the second barrier portion 1262 may be ring-shaped and surround the first via 1231. Preferably, the second barrier portion 1262 may surround the second via 1232 along the edge of the second via 1232. Preferably, the side wall of the inner ring of the second barrier portion 1262 may be flush with the hole wall of the second via 1232. In one possible embodiment, the second barrier portion 1262 may be provided around each second via 1232. Preferably, the second barrier portion 1262 may be integrally molded with the insulator 12. Preferably, the second barrier portion 1262 may be a weather strip or a foam adhesive provided on the surface of the insulator 12 facing the battery cell 20.

[0150] In some embodiments, the surface of the insulator 12 facing the battery cell 20 may be coated with an adhesive material to bond the insulator 12 to the battery cell 20, and the second barrier portion 1262 may restrict the flow of the adhesive material into the second via 1232, reducing the likelihood that the adhesive material attached to the surface of the connection portion 123 will come into contact with the pressure relief mechanism 23 in the second via 1232. In some embodiments, the second barrier portion 1262 may also provide some barrier effect against solid particles, for example, the second barrier portion 1262 may reduce the likelihood that solid particles will come into contact with the pressure relief mechanism 23, reducing the probability that the pressure relief mechanism 23 will be damaged.

[0151] The second barrier portion 1262 can protect the pressure relief mechanism 23 in the second via 1232 and restrict the flow of adhesive material to the pressure relief mechanism 23, thereby reducing the possibility that the adhesive material attached to the surface of the insulator 12 will come into contact with the pressure relief mechanism 23 and the possibility that the pressure relief mechanism 23 will be stuck and become difficult to operate, thereby improving the reliability of the battery 10. In addition, the second barrier portion 1262 can provide a certain degree of barrier effect against solid particles, thus reducing the probability that the pressure relief mechanism 23 will be damaged, and improving the reliability of the battery 10.

[0152] According to some embodiments of the present application, the second barrier portion 1262 preferably abuts against the surface of the battery cell 20 facing the insulator 12 .

[0153] In the third direction Z, the surface of the second barrier portion 1262 facing the battery cell 20 and the surface of the battery cell 20 facing the insulator 12 are in contact with each other. Preferably, the second barrier portion 1262 may be made of an elastic material, which is compressed to a certain extent during the installation process of the battery 10, thereby improving the degree of sealing between the second barrier portion 1262 and the battery cell 20 and improving the barrier function of the second barrier portion 1262 against adhesive materials or solid particles.

[0154] The contact of the second barrier portion 1262 with the surface of the battery cell 20 improves the sealing effect of the second barrier portion 1262 in the area surrounding the second via 1232, and further acts as a barrier against adhesive materials or solid particles, reducing the effect of the pressure relief mechanism 23 caused by the adhesive materials or solid particles, thereby improving the reliability of the battery 10.

[0155] According to some embodiments of the present application, preferably, the first insulating portion 121 is provided with a third barrier portion 1263, which protrudes from a surface of the first insulating portion 121 facing the battery cell 20 and extends along the first direction X; and / or

[0156] The second insulating portion 122 is provided with a fourth barrier portion 1264, which protrudes from the surface of the second insulating portion 122 facing the battery cell 20 and extends along the second direction Y.

[0157] 14 and 15 , the third barrier portion 1263 may protrude from the surface of the first insulating portion 121 facing the battery cells 20. The third barrier portion 1263 may extend along the first direction X, and preferably, the dimension of the third barrier portion 1263 in the first direction X may be the same as the dimension of the first insulating portion 121 in the first direction X. Preferably, the third barrier portion 1263 may be integrally molded with the insulator 12. Preferably, the third barrier portion 1263 may be a weather strip or a foam adhesive provided on the surface of the insulator 12 facing the battery cells 20. The third barrier portion 1263 is used to restrict the flow of an adhesive material applied to the insulator 12 into the gap between two adjacent battery cells 20 in the second direction Y, thereby reducing the adhesive material attached to the surface of the insulator 12 from flowing into the gap between the battery cells 20 and affecting the adhesive effect between the insulator 12 and the battery cells 20. In addition, the third barrier portion 1263 can also exert a certain degree of barrier effect against solid particles, thereby reducing the probability that solid particles will fall into the gap between two adjacent battery cells 20 in the second direction Y, and thus reducing the probability that the battery cells 20 will be damaged by solid particles, thereby improving the reliability of the battery 10.

[0158] The fourth barrier portion 1264 may protrude from the surface of the second insulating portion 122 facing the battery cells 20. The fourth barrier portion 1264 may extend along the second direction Y, and preferably, the dimension of the fourth barrier portion 1264 in the second direction Y may be the same as the dimension of the second insulating portion 122 in the second direction Y. Preferably, the fourth barrier portion 1264 may be integrally molded with the insulator 12. Preferably, the fourth barrier portion 1264 may be a weather strip or a foam adhesive provided on the surface of the insulator 12 facing the battery cells 20. The fourth barrier portion 1264 is used to restrict the flow of an adhesive material applied to the insulator 12 into the gap between two adjacent battery cells 20 in the first direction X, and to reduce the adhesive material attached to the surface of the insulator 12 from flowing into the gap between the battery cells 20 and affecting the tight arrangement of the battery cells 20. In addition, the fourth barrier portion 1264 exerts a certain degree of barrier effect against solid particles, reducing the probability that solid particles will fall into the gap between two battery cells 20 adjacent to each other in the first direction X, thereby reducing the probability that the battery cells 20 will be damaged by solid particles, and further improving the reliability of the battery 10.

[0159] In some embodiments, the third barrier section 1263 may be provided solely in the first insulating section 121, preferably the fourth barrier section 1264 may be provided solely in the second insulating section 122, or preferably the third barrier section 1263 may be provided in the first insulating section 121 and the fourth barrier section 1264 may be provided in the second insulating section 122 at the same time.

[0160] The third barrier portion 1263 and / or the fourth barrier portion 1264 can provide protection for the gaps between adjacent battery cells 20 and restrict the flow of adhesive material into the gaps between the battery cells 20, which is advantageous for achieving a tight arrangement of the battery cells 20. In this way, the influence of the adhesive material on the expansion and deformation of the battery cells 20 can be reduced, and the service life of the battery 10 can be extended. In addition, the third barrier portion 1263 and / or the fourth barrier portion 1264 can provide a certain degree of barrier effect against solid particles, which reduces the probability that solid particles will fall into the gaps between two adjacent battery cells 20 and thus reduces the probability that the battery cells 20 will be damaged by the solid particles, and further improves the reliability of the battery 10.

[0161] According to some embodiments of the present application, preferably, the third barrier portion 1263 and / or the fourth barrier portion 1264 abuts against the surface of the battery cell 20 facing the insulator 12 .

[0162] In the third direction Z, the surfaces of the third barrier portion 1263 and / or the fourth barrier portion 1264 facing the battery cell 20 and the surfaces of the battery cell 20 facing the insulator 12 are in contact with each other. Preferably, the third barrier portion 1263 and / or the fourth barrier portion 1264 may be made of an elastic material, which can be compressed to a certain extent during the installation process of the battery 10 to improve the sealing degree between the second barrier portion 1262 and the battery cell 20 and improve the barrier function of the second barrier portion 1262 against adhesive materials or solid particles.

[0163] The third barrier portion 1263 and / or the fourth barrier portion 1264 abutting against the surface of the battery cell 20 improves the sealing effect of the third barrier portion 1263 and / or the fourth barrier portion 1264 on the gap between two adjacent battery cells 20, and further exerts a barrier effect against adhesive materials or solid particles, reducing the impact of the adhesive materials or solid particles on the battery cell 20, thereby improving the reliability of the battery 10.

[0164] According to some embodiments of the present application, preferably, the projection of the third barrier portion 1263 in the third direction Z covers the gap between two adjacent battery cells 20 arranged along the second direction Y, and the third direction Z is perpendicular to the first direction X and the second direction Y, and / or the projection of the fourth barrier portion 1264 in the third direction Z covers the gap between two adjacent battery cells 20 arranged along the first direction X, and the third direction Z is perpendicular to the first direction X and the second direction Y.

[0165] The third barrier portion 1263 is provided on the first insulating portion 121. When the first insulating portion 121 is used to connect two adjacent battery cells 20 arranged along the second direction Y, the projection of the third barrier portion 1263 in the third direction Z covers the gap between the two adjacent battery cells 20 arranged along the second direction Y, thereby sealing the gap between the two battery cells 20 arranged along the second direction Y. Even if the adhesive material in the insulator 12 flows to the surrounding area due to pressure, the third barrier portion 1263 protruding from the insulator 12 restricts the flow of the adhesive material, reducing the possibility of the adhesive material flowing into the gap. In addition, the probability that solid particles fall into the gap between two adjacent battery cells 20 in the second direction Y is further reduced, further reducing the probability that the battery cells 20 are damaged by the solid particles, thereby improving the reliability of the battery 10.

[0166] Similarly, when the fourth barrier portion 1264 is provided on the second insulating portion 122 and the second insulating portion 122 is used to connect two adjacent battery cells 20 arranged along the first direction X, the projection of the fourth barrier portion 1264 in the third direction Z covers the gap between the two adjacent battery cells 20 arranged along the first direction X, thereby sealing the gap between the two battery cells 20 arranged along the first direction X. Even if the adhesive material in the insulator 12 flows to the surrounding area due to pressure, the fourth barrier portion 1264 protruding from the insulator 12 restricts the flow of the adhesive material, reducing the possibility of the adhesive material flowing into the gap. This also further reduces the probability that solid particles will fall into the gap between two adjacent battery cells 20 in the first direction X, further reducing the probability that the battery cells 20 will be damaged by the solid particles, thereby improving the reliability of the battery 10.

[0167] In some embodiments, only the third barrier portion 1263 may seal the gaps between the battery cells 20, preferably, only the fourth barrier portion 1264 may seal the gaps between the battery cells 20, and preferably, the third barrier portion 1263 and the fourth barrier portion 1264 are simultaneously used to seal the gaps between the battery cells 20.

[0168] The third barrier portion 1263 and / or the fourth barrier portion 1264 can cover the gaps between the battery cells 20, thereby restricting the flow of adhesive material into the gaps between the battery cells 20, which is advantageous for achieving a tight arrangement between the battery cells 20. In this way, the influence of the adhesive material on the expansion and deformation of the battery cells 20 can be reduced, and the service life of the battery 10 can be increased. In addition, the probability that solid particles will fall into the gaps between two adjacent battery cells 20 can be further reduced, which can further reduce the probability that the battery cells 20 will be damaged by the solid particles, thereby improving the reliability of the battery 10.

[0169] According to some embodiments of the present application, preferably, at least a portion of the third barrier portion 1263 extends into the gap between two adjacent battery cells 20 arranged along the second direction Y, and / or at least a portion of the fourth barrier portion 1264 extends into the gap between two adjacent battery cells 20 arranged along the first direction X.

[0170] In one possible embodiment, a certain gap may be reserved between two adjacent battery cells 20 arranged along the second direction Y, and at least a portion of the third barrier portion 1263 may fill the gap. In another possible embodiment, the third barrier portion 1263 may be pressed so that at least a portion of the third barrier portion 1263 protrudes into the gap between two adjacent battery cells 20 arranged along the first direction X.

[0171] In this way, it is possible to further exert a barrier effect against adhesive materials or solid particles, thereby reducing the impact on the battery cells 20 caused by the adhesive materials or solid particles penetrating into the gaps between adjacent battery cells 20, and improving the reliability of the battery 10.

[0172] According to some embodiments of the present application, preferably, the first insulating portion 121 is provided with two spaced apart third barrier portions 1263, the projections of the two third barrier portions 1263 in the third direction Z are located on both sides of a gap between two adjacent battery cells 20 arranged along the second direction Y, and the third direction Z is perpendicular to the first direction X and the second direction Y; and / or

[0173] The second insulating portion 122 is provided with two spaced-apart fourth barrier portions 1264, and the projections of the two fourth barrier portions 1264 in the third direction Z are located on both sides of the gap between two adjacent battery cells 20 arranged along the first direction X, and the third direction Z is perpendicular to the first direction X and the second direction Y.

[0174] The third barrier portion 1263 may restrict the adhesive material or solid particles from entering the gap from both sides of the gap between two adjacent battery cells 20, and the two adjacent battery cells 20 may be arranged along the second direction Y. Specifically, two third barrier portions 1263 may be provided in the first insulating portion 121, and preferably, the two third barrier portions 1263 may be provided in parallel. The projections of the two third barrier portions 1263 in the third direction Z are located on both sides of the gap between the two battery cells 20, and in this case, the two third barrier portions 1263 may restrict the adhesive material or solid particles from both sides of the gap, respectively, and reduce the possibility of the adhesive material or solid particles entering the gap.

[0175] Similarly, the fourth barrier portion 1264 may restrict the adhesive material or solid particles from entering the gap from both sides of the gap between two adjacent battery cells 20 arranged along the first direction X. Specifically, two fourth barrier portions 1264 may be provided in the second insulating portion 122, and preferably, the two fourth barrier portions 1264 may be provided in parallel on both sides of the gap between two adjacent battery cells 20 arranged along the first direction X, thereby restricting the adhesive material or solid particles from both sides of the gap and reducing the possibility of the adhesive material or solid particles entering the gap.

[0176] In some embodiments, two third barrier portions 1263 may be provided on the first insulating portion 121 alone, preferably two fourth barrier portions 1264 may be provided on the second insulating portion 122 alone, and preferably the third barrier portion 1263 and the fourth barrier portion 1264 may be provided simultaneously on the insulator 12, thereby protecting all gaps between the battery cells 20 arranged along the first direction X and the second direction Y.

[0177] The third barrier portion 1263 and / or the fourth barrier portion 1264 can restrict the adhesive material or solid particles from entering the gaps on both sides of the gaps between the battery cells 20, and by reducing the possibility of the adhesive material or solid particles entering the gaps, it is advantageous to achieve a tight arrangement between the battery cells 20, thereby reducing the effect of expansion and deformation of the battery cells 20 due to the adhesive material or solid particles, and increasing the service life of the battery 10. In addition, by providing barrier portions on both sides of the gaps between the battery cells 20, the amount of material required for the barrier portions can be reduced, which can lower production costs and reduce the weight of the battery 10.

[0178] According to some embodiments of the present application, at least a portion of the insulator 12 may preferably be made of a transparent material. Preferably, the first insulating portion 121 and / or the second insulating portion 122 may be made of a transparent material. The transparent material may include, for example, materials such as PC (Polycarbonate), PA66 (Polyhexamethylenediamine), PMMA (Polymethyl methacrylate), glass fiber, and glass.

[0179] According to some embodiments of the present application, the light transmittance of the first insulating portion 121 and / or the second insulating portion 122 is preferably 20% to 100%. The light transmittance refers to the percentage of the light flux transmitted through an object relative to the incident light flux, and the light transmittance of an object can usually be measured using a spectrophotometer.

[0180] Preferably, the light transmittance of the first insulating portion 121 and / or the second insulating portion 122 may be 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 100%.

[0181] The first insulating part 121 may be made of a transparent material, which is a material with a light transmittance of 20% to 100%. The transparent material allows light to pass through the first insulating part 121 from one side of the first insulating part 121 to the other side of the first insulating part 121. In the embodiment of the present application, the transparent material allows light to pass from one side to the other side of the first insulating part 121 in the third direction Z. Preferably, the second insulating part 122 may be made of a transparent material, and preferably, both the first insulating part 121 and the second insulating part 122 may be made of a transparent material.

[0182] The transparent material is advantageous for observing the situation from one side to the other. For example, during the process of applying adhesive material, the transparent portion allows the specific application location to be observed. Also, for example, during the process of bonding the insulator 12 to the battery cell 20, the transparent portion allows the flow of adhesive material to be observed. If too much or too little adhesive material is applied, the process can be adjusted in a timely manner, thereby improving the yield of the battery 10 during production.

[0183] During the installation process, the first insulating part 121 and / or the second insulating part 122 are manufactured using a material with a light transmittance of 20% to 100%, which is advantageous for monitoring and controlling the installation process, and allows for timely adjustments to be made to improve the yield of the battery 10 during production.

[0184] According to some embodiments of the present application, the battery 10 preferably further includes an adhesive layer, which is used to bond the insulator 12 and the battery cell 20 together.

[0185] The insulator 12 may be fixedly connected to the battery cell 20 by adhesive bonding. Specifically, adhesive bonding can be achieved by applying an adhesive material to the surface of the insulator 12 and / or the battery cell 20. In this case, the structure formed by the adhesive material is an adhesive layer.

[0186] The adhesive layer can realize a fixed connection between the insulator 12 and the battery cell 20, which makes it difficult for the battery cell 20 to separate from the insulator 12 and cause insulation failure. In addition, the adhesive layer can fix the relative positions of the multiple battery cells 20 with the insulator 12, which makes it difficult for the battery cells 20 to collide with each other in the battery 10 and cause danger.

[0187] According to some embodiments of the present application, preferably, the material of the adhesive layer is a photosensitive adhesive.

[0188] Photosensitive adhesives are adhesive materials that can harden quickly by absorbing light of a specific wavelength. For example, UV adhesives (Ultraviolet Rays Glue) can be converted from a liquid to a solid state in a short time after absorbing ultraviolet light when irradiated with ultraviolet light.

[0189] In some embodiments, at least a portion of the insulator 12 may be made of a transparent material, and the transparent material may have a light transmittance of, for example, 20% to 100%. The photosensitive adhesive may be applied to the surface of the transparent material region, for example, the surface facing the battery cell 20. In this case, light rays corresponding to the photosensitive adhesive can pass through the transparent material from the other surface of the transparent material and act on the photosensitive adhesive, and the photosensitive adhesive will absorb the energy in the corresponding light rays and harden.

[0190] The photosensitive adhesive can be cured quickly by irradiation with light, thereby reducing the manufacturing time of the battery 10 and improving manufacturing efficiency.

[0191] According to some embodiments of the present application, the battery 10 preferably includes a first housing portion 111 and a second housing portion 112. The first housing portion 111 is a hollow structure having an opening, and multiple battery cells 20 are housed in the hollow structure. The second housing portion 112 is placed over the first housing portion 111, and the second housing portion 112 is fixedly connected to the insulator 12.

[0192] The first housing portion 111 houses a plurality of battery cells 20, and in some embodiments, the insulators 12 may be provided on the surfaces of the battery cells 20 facing the opening of the first housing portion 111. Preferably, the surfaces on which the electrode terminals 21 of the battery cells 20 are provided may face the opening of the first housing portion 111.

[0193] The second housing portion 112 may be fitted over the first housing portion 111 at one open end of the first housing portion 111, and preferably, if the first housing portion 111 is open at both ends, the second housing portion 112 may be fitted over the first housing portion 111 from both open ends. When fitted over the first housing portion 111, the second housing portion 112 may be fixedly connected to a structure housed within the first housing portion 111. In some embodiments, when fitted over the first housing portion 111, the second housing portion 112 may be fixedly connected to an insulator 12 housed in the first housing portion 111. For example, an adhesive material may be applied to the surface of the second housing part 112 facing the hollow structure of the first housing part 111, in which case when the second housing part 112 is placed over the first housing part 111, it may be fixedly connected to the insulator 12 by the adhesive material, and preferably, the adhesive material may be applied to the surface of the insulator 12 facing the second housing part 112 so that a fixed connection between the insulator 12 and the second housing part 112 is achieved.

[0194] By being fixedly connected to the insulator 12, the second housing part 112 further fixes the position of the battery cell 20 in the battery 10, reduces the shaking of the battery cell 20 within the first housing part 111, and reduces the possibility of the battery cell 20 colliding and being damaged inside the battery 10, thereby improving the reliability of the battery 10.

[0195] According to some embodiments of the present application, the second housing portion 112 is preferably adhesively secured to the standoff 12 .

[0196] The second housing portion 112 and the insulator 12 can be fixedly connected by applying an adhesive material. For example, the second housing portion 112 and the insulator 12 can be fixedly connected by using a foam adhesive. Since there is a certain gap between the second housing portion 112 and the insulator 12, the foam adhesive can be filled between the second housing portion 112 and the insulator 12 in the form of potting, thereby realizing adhesive fixation between the second housing portion 112 and the insulator 12. The foam adhesive can have a certain thickness when applied to a surface, filling the gap between the second housing portion 112 and the insulator 12 and improving the adhesive strength between the second housing portion 112 and the insulator 12. Additionally, the foam adhesive has a low density characteristic. Therefore, using the foam adhesive to connect the second housing portion 112 and the insulator 12 can also improve the vibration resistance of the battery 10.

[0197] An embodiment of the present application further provides a power consuming device including the battery 10 according to any one of the above embodiments, wherein the battery 10 is used to provide electrical energy to the power consuming device.

[0198] An embodiment of the present application provides a battery 10 including battery cells 20, an insulator 12, a bus bar 22, and a housing 11. The insulator 12 is fixedly connected to the plurality of battery cells 20 and is housed in the housing 11. The bus bar 22 connects the electrode terminals 21 of two adjacent battery cells 20, thereby achieving electrical connection between the battery cells 20. The insulator 12 includes a first insulating portion 121 extending along a first direction X, a second insulating portion 122 extending along a second direction Y, and a connecting portion 123 connecting the first insulating portion 121 and the second insulating portion 122. The first insulating portion 121 is fixedly connected to the plurality of battery cells 20 arranged along the first direction X, and the second insulating portion 122 is fixedly connected to the plurality of battery cells 20 arranged along the second direction Y. The connecting portion 123 is provided with a first via 1231 and a second via 1232, the first via 1231 is used to retract the electrode terminal 21 of the battery cell 20, the second via 1232 is used to retract the pressure relief mechanism 23 of the battery cell 20, a first barrier portion 1261 is provided around the first via 1231, a second barrier portion 1262 is provided around the second via 1232, a third barrier portion 1263 is provided in the first insulating portion 121, and a fourth barrier portion 1264 is provided in the second insulating portion 122. The insulator 12 may have an integrally molded structure, and a sampling assembly 125 may be integrated into the insulator 12 to sample parameters of the battery cell 20.

[0199] Although the present application has been described with reference to preferred embodiments, various modifications may be made without departing from the scope of the present application, and the components therein may be replaced with equivalents. In particular, as long as there is no structural conflict, any of the technical features mentioned in each embodiment may be combined in any form. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims. [Explanation of symbols]

[0200] 1 vehicle 10 batteries 11. Housing 12 Insulators 13 Connection Assembly 20 battery cells 21 Electrode terminal 22 Busbar 23 Pressure relief mechanism 30 Controllers 40 Motor 111 First Housing Section 112 Second housing section 121 First insulation section 122 Second insulating section 123 Connection 124 Reinforcement structure 125 Sampling Assembly 131 1st groove 132 Second groove 200 battery modules 1231 First Via 1232 Second Via 1261 First Barrier Section 1262 Second Barrier Section 1263 Third Barrier Section 1264 4th Barrier Section X 1st direction Y Second direction Z 3rd direction

Claims

1. a plurality of battery cells (20) arranged in a matrix along a first direction (X) and a second direction (Y), the first direction (X) being perpendicular to the second direction (Y); an insulator (12) including a first insulating portion (121) extending along the first direction (X) and a second insulating portion (122) extending along the second direction (Y), the first insulating portion (121) being fixedly connected to the plurality of battery cells (20) arranged along the first direction (X), and the second insulating portion (122) being fixedly connected to the plurality of battery cells (20) arranged along the second direction (Y); A battery characterized by:

2. The first insulating portion (121) is fixedly connected to two adjacent battery cells (20) arranged along the second direction (Y), and / or The second insulating portion (122) is fixedly connected to two adjacent battery cells (20) arranged along the first direction (X).

2. The battery according to claim 1 .

3. The first insulating portion (121) and the second insulating portion (122) are fixedly connected.

3. The battery according to claim 1 or 2.

4. The first insulating part (121) is provided with a first groove (131), and the first groove (131) is engaged with the second insulating part (122), and / or The second insulating part (122) is provided with a second groove (132), and the second groove (132) is engaged with the first insulating part (121).

4. The battery according to claim 3.

5. The insulator (12) is an integrally molded structure.

3. The battery according to claim 1 or 2.

6. The insulator (12) includes a connecting portion (123), and the connecting portion (123) is used to connect the first insulating portion (121) and the second insulating portion (122) in a plane formed by the first direction (X) and the second direction (Y). The battery according to any one of claims 1 to 5.

7. The battery cell (20) includes an electrode terminal (21), and the connection portion (123) is provided with a first via (1231), which is used to retreat the electrode terminal (21).

7. The battery according to claim 6.

8. A first barrier portion (1261) is provided around the first via (1231), and the first barrier portion (1261) protrudes onto a surface of the insulator (12) facing the battery cell (20).

8. The battery according to claim 7.

9. The first barrier portion (1261) abuts against the surface of the battery cell (20) facing the insulator (12).

9. The battery of claim 8.

10. The insulator (12) includes a bus bar (22), the bus bar (22) corresponds to two adjacent first vias (1231), and the two adjacent first vias (1231) correspond to the electrode terminals (21) of different battery cells (20). The battery according to any one of claims 7 to 9.

11. At least a portion of the surface of the insulator (12) that is far from the battery cell (20) protrudes onto the surface of the bus bar (22) that is far from the battery cell (20). The battery of claim 10.

12. The battery cell (20) includes a pressure relief mechanism (23), and the connection portion (123) is provided with a second via (1232), which is used to retract the pressure relief mechanism (23). The battery according to any one of claims 6 to 11.

13. A second barrier portion (1262) is provided around the second via (1232), and the second barrier portion (1262) protrudes onto the surface of the insulator (12) facing the battery cell (20).

13. The battery of claim 12.

14. a third barrier portion (1263) is provided on the first insulating portion (121), the third barrier portion (1263) protruding from a surface of the first insulating portion (121) facing the battery cell (20) and extending along the first direction (X); and / or The second insulating portion (122) is provided with a fourth barrier portion (1264), the fourth barrier portion (1264) protruding from a surface of the second insulating portion (122) facing the battery cell (20) and extending along the second direction (Y). The battery according to any one of claims 1 to 13.

15. a projection of the third barrier portion (1263) in a third direction (Z) covers a gap between two adjacent battery cells (20) arranged along the second direction (Y), and the third direction (Z) is perpendicular to the first direction (X) and the second direction (Y); and / or a projection of the fourth barrier portion (1264) in a third direction (Z) covers a gap between two adjacent battery cells (20) arranged along the first direction (X), and the third direction (Z) is perpendicular to the first direction (X) and the second direction (Y); 15. The battery of claim 14.

16. the first insulating portion (121) is provided with two spaced-apart third barrier portions (1263), and projections of the two third barrier portions (1263) in a third direction (Z) are located on both sides of a gap between two adjacent battery cells (20) arranged along the second direction (Y), and the third direction (Z) is perpendicular to the first direction (X) and the second direction (Y); and / or The second insulating portion (122) is provided with two spaced-apart fourth barrier portions (1264), and projections of the two fourth barrier portions (1264) in a third direction (Z) are located on both sides of a gap between two adjacent battery cells (20) arranged along the first direction (X), and the third direction (Z) is perpendicular to the first direction (X) and the second direction (Y).

15. The battery of claim 14.

17. The insulating device (12) includes a sampling assembly (125), and the sampling assembly (125) is provided in the first insulating part (121) and / or the second insulating part (122). The battery according to any one of claims 1 to 16.

18. The light transmittance of the first insulating portion (121) and / or the second insulating portion (122) is 20% to 100%. The battery according to any one of claims 1 to 17.

19. The battery comprises: The insulating member (12) further includes an adhesive layer used to bond the insulating member (12) and the battery cell (20). The battery according to any one of claims 1 to 18.

20. The material of the adhesive layer is a photosensitive adhesive.

20. The battery of claim 19.

21. The battery comprises: a first housing portion (111) having a hollow structure with an opening, in which a plurality of the battery cells (20) are housed; a second housing portion (112) that is fitted over the first housing portion (111) and fixedly connected to the insulating tool (12), The battery according to any one of claims 1 to 20.

22. The second housing portion (112) is adhesively fixed to the insulating tool (12).

22. The battery of claim 21 .

23. 1. A power consuming device, comprising: A battery (10) according to any one of claims 1 to 22, wherein the battery (10) is adapted to provide electrical energy to the power consuming device.

1. A power consuming device comprising:

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