Battery, power consumption device, and battery molding method

Abstract

The present application provides a battery, a power consumption device, and a method for forming a battery, the battery including a housing, a battery module, a bus member, and two output members. Two or more battery modules are arranged along a first direction, each battery module includes an even number of battery cells arranged along a second direction, the second direction is perpendicular to the first direction, the battery cells include a first side wall and a second side wall connected to each other, the first side wall is the wall with the largest area among all the outer walls of the battery cells, the second side walls of two adjacent battery cells are arranged opposite to each other along the second direction, the bus member electrically connects the two adjacent battery cells, the two output members are arranged on the same side of the first direction, the battery module located at the outermost position along the first direction has two output ends, the two output ends are arranged along the second direction and are electrically connected to the two output ends respectively, thereby forming a power supply path together with the bus member. The present application can improve the integration degree and energy density of the entire battery, facilitate processing and assembly, and reduce weight and cost.

Description

[Technical field]

[0001] This application relates to the field of battery technology, and more particularly to batteries, power consuming devices and methods of forming batteries. [Background technology]

[0002] Energy saving and emission reduction are key points in the sustainable development of the automotive industry, and electric vehicles have become an important part of the sustainable development of the automotive industry due to their advantages of energy saving and environmental friendliness. For electric vehicles, battery technology is a key factor in their development.

[0003] In conventional battery manufacturing processes, the output member that connects the total output terminals of the battery modules is generally installed across the entire battery, which increases the weight and costs. Summary of the Invention

[0004] The present application provides a battery, a power consuming device, and a method for molding a battery, which can avoid a configuration in which an output member is installed across the entire battery, thereby reducing weight and costs.

[0005] According to a first aspect, an embodiment of the present application provides a battery including a housing, a battery module, a bus member, and two output members, the battery module is installed in the housing, the number of the battery modules is two or more and is arranged along a first direction, each battery module includes an even number of battery cells arranged along a second direction, the second direction is perpendicular to the first direction, the battery cells include a first side wall and a second side wall connected to each other, the first side wall is a wall having a largest area among all the outer walls of the battery cells, the first direction is perpendicular to the first side wall, the second side walls of two adjacent battery cells are arranged opposite to each other along the second direction, the bus member is used to electrically connect the two adjacent battery cells, the two output members are installed on the same side of the first direction, the two output ends are installed on the battery module located at the outermost position along the first direction, and the two output ends are arranged along the second direction, and the two output members are electrically connected to the two output ends respectively, thereby forming a power supply path together with the bus member.

[0006] In the embodiments of the present application, the two output members and two output ends of the battery face the same side, which simplifies the connection structure, improves the space utilization rate within the housing, and is advantageous for processing and assembly. At the same time, it is possible to avoid using one long output member to form a power supply path across the battery modules, which is advantageous for reducing weight and costs, and improving the integration degree and energy density of the battery.

[0007] In an embodiment of the present application, the bus members include a plurality of first bus members and a plurality of second bus members, the first bus members are used to electrically connect two adjacent battery cells along a first direction, and the second bus members are used to electrically connect two adjacent battery cells along a second direction.

[0008] By installing in this manner, the bus members can be assembled regularly, improving assembly efficiency, and ensuring the effectiveness of forming two output ends on the outermost battery module in the first direction, thereby ensuring that the two output members are installed on the same side in the first direction, improving the space utilization rate within the housing, which is beneficial for reducing weight and cost, and improving the integration degree and energy density of the battery.

[0009] In some embodiments, the second bus member is used to electrically connect two adjacent battery cells in the battery module located at the outermost side along the first direction.

[0010] By installing in this manner, two output ends can be formed in the battery module located outermost along the first direction, thereby ensuring the effectiveness of installing the two output members on the same side in the first direction.

[0011] In some embodiments, the two output ends are respectively installed on two battery cells located at the ends of the outermost battery module in the second direction, which is advantageous to reduce the arrangement length of the two output members, thereby reducing weight and cost, and improving the integration density and energy density of the battery.

[0012] In some embodiments, the battery further includes a stopper member fixedly connected within the housing and abutting a first side wall of the battery cell, the stopper member being used to limit deformation of the battery cell in a first direction.

[0013] In the embodiment of the present application, the stopper member can provide positioning for the battery cell, which is favorable for improving the installation efficiency and installation accuracy, and ensures the battery has good quality, and the stopper member can limit the deformation of the battery cell in the first direction, which is favorable for cushioning the expansion of the battery cell, and ensures the safety performance of the battery.

[0014] In some embodiments, the battery cell further includes an output member base, where the output member base is mounted to the stopper member and is used to support the output member.

[0015] By installing in this manner, the output member and the output member base form an output interface to be connected to an external power consumption device, which is helpful for mounting and fixing the output member and can also prevent the occurrence of contact short circuits, thereby ensuring the safety of the battery.

[0016] In some embodiments, the stopper member extends along the second direction and is connected to the housing at both ends in the second direction, which can improve the structural strength of the entire housing, improve the ability to resist expansion of the battery cells, and ensure safety performance.

[0017] In some embodiments, the stopper member abuts against a first side wall of a battery cell in the outermost battery module, which can provide positioning for the battery module, which is beneficial for improving installation efficiency and installation accuracy, and ensuring that the battery has good quality.

[0018] In some embodiments, the stopper member has a plurality of cavities extending therethrough along the second direction.

[0019] This installation method is advantageous in that the space within the cavity is compressed along the first direction, so that the stopper member can limit the deformation of the battery cell, and cushion and absorb the expansion force of the battery cell, thereby ensuring the safety performance of the battery cell. Moreover, the provision of the cavity can reduce the weight of the stopper member, thereby reducing costs and realizing a lightweight design, while at the same time improving the energy density of the entire battery.

[0020] In some embodiments, a partition is disposed between two adjacent battery modules along the first direction, and the partition abuts against a first side wall of each battery cell in the two adjacent battery modules.

[0021] By installing in this manner, the partition can be used as a structural member of the housing, and by clamping the partition between two adjacent battery modules and connecting it to the first side wall of each battery cell, the partition can better fulfill at least one of the roles of improving structural strength and providing resistance to expansive forces.

[0022] In some embodiments, the divider is adhesively fixed to the first sidewalls of each battery cell in two adjacent battery modules.

[0023] This installation method is advantageous in improving the connection strength and connection stability between the partition and the battery cells, and ensures the safety and reliability of the battery. In addition, by using an adhesive method to connect the partition and each battery cell together, the partition and each battery cell of the battery module can be bonded together before being inserted into the housing, which is advantageous for assembling the battery module and further makes the installation of adjacent battery modules more compact, improving the space utilization efficiency of the housing.

[0024] In some embodiments, the divider is used to regulate the temperature of the battery cell and includes a media flow path within the divider.

[0025] By installing it as described above, the partition can not only manage the heat of the battery cells, but also improve the structural strength of the entire battery as a structural member of the housing, thereby eliminating the need for vertical and horizontal beams inside the housing, achieving high integration, cost reduction, improved space utilization rate of the housing, and a lightweight design.

[0026] In some embodiments, the cell further includes a communication channel, a supply pipe and a discharge pipe, the media channels of each compartment communicate with each other via the communication channel, and the supply pipe and the discharge pipe communicate with the media channel of the same compartment.

[0027] By installing in this manner, each partition can meet the requirements for heat exchange medium through only one supply pipe and one discharge pipe, which reduces the space occupation rate and simplifies the structure of the supply pipe and discharge pipe, which is convenient for assembly and replacement, and can be adapted to supply heat exchange medium to different numbers of partitions, improving flexibility and versatility.

[0028] In some embodiments, the housing includes a top cover, a bottom cover and a housing frame, the bottom cover and the top cover are installed at both ends of the housing frame opposite each other in the height direction of the housing, and the stopper members are respectively connected to the housing frame and at least one of the top cover and the bottom cover.

[0029] This method of installation is advantageous for manufacturing and assembly, and further improves the structural strength.

[0030] In some embodiments, the housing further includes a connection base, the connection base protruding from the housing along the second direction, the connection base being used to attach the battery to the power consuming device.

[0031] The provision of a connection base helps to connect and fix the entire battery to the power consuming device in which it is used, and ensures the safe performance of the battery.

[0032] In some embodiments, the battery cell includes an electrode terminal, and a surface of the battery cell away from the electrode terminal along the height direction is connected to the top cover or the bottom cover.

[0033] By installing the battery in this manner, the battery cells can be placed upright or upside down in the housing when the battery is manufactured, improving options for manufacturing and molding the battery.

[0034] According to a second aspect, an embodiment of the present application provides a power consuming device including the battery of any of the above embodiments, wherein the battery can operate the power consuming device normally.

[0035] According to a third aspect, an embodiment of the present application provides a method for forming a battery, the method including: providing an even number of battery cells, the battery cells including a first side wall and a second side wall, the first side wall being the wall with the largest area among all the outer walls of the battery cell; grouping a plurality of battery cells, each group including an even number of battery cells, the second side walls of each battery cell of the same group being placed opposite each other, thereby forming two or more battery modules; stacking the two or more battery modules and placing the whole in a housing; electrically connecting the battery cells of each battery module via a bus member; providing two output members, the two output members being placed on the same side in a first direction, the two output members being electrically connected to two output ends placed on a battery module located outermost along the first direction, the two output ends being placed along a second direction, and forming a power supply path together with the bus members.

[0036] In the embodiments of the present application, the battery manufactured by this molding method is advantageous for processing and assembly, and can avoid the need to form a power supply path across the battery modules using one long output member, which is advantageous for reducing weight and cost, and improves the integration degree and energy density of the battery. [Brief description of the drawings]

[0037] In order to more clearly describe the technical solutions in the embodiments of the present application, the following briefly describes the drawings required for the embodiments of the present application, and it should be understood that the drawings shown below are only some embodiments of the present application, and those skilled in the art can further obtain other drawings based on the drawings without creative efforts.

[0038] [Figure 1] 1 is a structural schematic diagram of a vehicle according to an embodiment of the present application. [Diagram 2] FIG. 2 is an exploded schematic view of a battery cell according to an embodiment of the present application. [Diagram 3] FIG. 1 is an exploded schematic view of a battery according to an embodiment of the present application. [Figure 4]FIG. 2 is a partial plan view of a battery according to an embodiment of the present application. [Diagram 5] FIG. 2 is a partial plan view of a battery according to another embodiment of the present application. [Figure 6] FIG. 13 is a partial plan view of a battery according to yet another embodiment of the present application. [Figure 7] FIG. 1 is a partially exploded schematic diagram of a battery according to one embodiment of the present application. [Figure 8] FIG. 2 is a partially exploded schematic view of a battery according to another embodiment of the present application. [Figure 9] 1 is a flowchart of a battery molding method according to an embodiment of the present application.

[0039] In the drawings, the drawings are not drawn to scale. [Explanation of symbols]

[0040] 1000-vehicle, 100-battery, 200-controller, 300-motor, 10--housing, 10a--opening, 11--top cover, 12--bottom cover, 13--accommodating frame, 14--connection base, 20—battery module, 21—battery cell, 211—first side wall, 212—second side wall, 201—end cover assembly, 201a—electrode terminal, 202—housing, 203—electrode assembly, 203a—positive electrode tab, 203b—negative electrode tab, 30-bus member, 31-first bus member, 32-second bus member, 40-output member, 50-stopper member, 51-accommodating groove, 60-output member base, 70 - partition portion, 71 - communication flow path, 72 - supply pipe, 73 - discharge pipe, X-1st direction, Y-2nd direction, Z-height direction DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0041] The following describes in detail the embodiments of the technical solution of the present application with reference to the drawings. The following embodiments are only used to more clearly explain the technical solution of the present application, and are merely examples, which do not limit the scope of protection of the present application.

[0042] It should be noted that unless otherwise explained, technical and scientific terms used in the examples of this application have the same meaning as would be understood by one of ordinary skill in the art to which the examples of this application pertain.

[0043] In describing the embodiments of the present application, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, based on the orientations or positional relationships shown in the drawings, are merely intended to facilitate and simplify the description of the embodiments of the present application, and are not intended to indicate or imply that the subject devices or elements have a particular orientation or are to be configured and operated in a particular orientation, and therefore should not be understood as limiting the embodiments of the present application.

[0044] Furthermore, technical terms such as "first", "second", etc. are used for descriptive purposes only and should not be understood to indicate or imply the relative importance or number of the technical features they refer to. In the description of the embodiments of the present application, unless otherwise clearly limited, "plurality" means two or more.

[0045] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "attached", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, may be a fixed connection, a removable connection, or may be integral. They may be mechanically connected or electrically connected. They may be directly connected, indirectly connected via an intermediate medium, or may be an internal communication between two elements or an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present application according to the specific circumstances.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "on the lower surface" of a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply that the horizontal height of the first feature is lower than that of the second feature.

[0047] At present, due to the development of the market situation, the application of power batteries is becoming more and more widespread. Power batteries are not only used in energy storage power systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, and military equipment and aerospace. With the expansion of the application fields of power batteries, the demand for them in the market is also constantly increasing.

[0048] The applicant has noticed that a conventional battery generally includes a plurality of battery cells, and it is necessary to provide a plurality of connection tabs between the battery cells for electrical connection, and further provide one long connection tab for forming a total output terminal. However, such a configuration makes the layout structure of the connection tabs in the battery complicated, is disadvantageous for processing and assembly, and increases the problems of weight and cost.

[0049] In order to improve the integration density and energy density of the entire battery, to facilitate processing and assembly, and to reduce weight and costs, the applicant has found through research that the structure and arrangement of the battery can be improved.

[0050] Based on the above considerations, in order to improve the integration degree and energy density of the entire battery, and to facilitate processing and assembly, and reduce the issues of weight and cost, the applicant has conducted extensive research and designed a battery including a housing, a battery module, a bus member and two output members. The battery modules are installed in the housing, the number of the battery modules is two or more and they are arranged along a first direction, each battery module includes an even number of battery cells arranged along a second direction, the second direction is perpendicular to the first direction, the battery cells include a first side wall and a second side wall connected to each other, the first side wall is a wall with a largest area among all the outer walls of the battery cell, the first direction is perpendicular to the first side wall, the second side walls of two adjacent battery cells are installed opposite each other along the second direction, the bus member is used to electrically connect the two adjacent battery cells, the two output members are installed on the same side of the first direction, two output ends are installed on the battery module located outermost along the first direction, and the two output ends are arranged along the second direction, and the two output members are electrically connected to the two output ends respectively, thereby forming a power supply path together with the bus member.

[0051] In such a battery, in order to meet the requirement of sealing, the battery module is installed in the housing. The bus member is used to electrically connect two adjacent battery cells, and two output ends are installed in the battery module located at the outermost position along the first direction, and the two output members are installed on the same side in the first direction, and the two output members are electrically connected to the two output ends, respectively, so that the bus members together form a power supply path, and the two output members and the two output ends face the same side, which can simplify the connection structure, improve the space utilization rate in the housing, and be favorable for processing and assembly, and at the same time, it can avoid using one long output member to form a power supply path in a form spanning the battery modules, which is favorable for reducing weight and cost, making the battery cell more compact, and improving the energy density.

[0052] The technical solutions described in the embodiments of the present application are applied to power-consuming devices that use batteries.

[0053] The power consumption device may be a vehicle, a mobile phone, a mobile device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, etc. The vehicle may be a gasoline vehicle, a natural gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or a range extender vehicle, etc. The spacecraft includes an aircraft, a rocket, a space shuttle, a space ship, etc. The electric toy includes a game console, an electric car toy, an electric ship toy, an electric aircraft toy, and other stationary or mobile electric toys. The electric tool includes a metal cutting electric tool, a polishing electric tool, an assembly electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an electric impact driver, a concrete vibrator, and an electric planer. The embodiment of the present application is not particularly limited to the above power consumption device.

[0054] It should be noted that the technical solutions described in the embodiments of the present application are not only applicable to the above-mentioned power consumption devices, but also include all power consumption devices that use batteries. For the sake of simplicity, however, the following embodiments are all described using electric vehicles as examples.

[0055] Please refer to FIG. 1, which is a structural schematic diagram of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 may be a gasoline vehicle, a natural gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range extender vehicle, etc. A battery 100 is installed inside the vehicle 1000, and the battery 100 may be installed at the bottom, front or rear of the vehicle 1000. The battery 100 can be used to supply power to the vehicle 1000, for example, as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, and the controller 200 is used to control the battery 10 to supply power to the motor 300, for example, to meet the operating power needs during starting, navigation and running of the vehicle 1000.

[0056] In some embodiments of the present application, the battery 100 can provide not only the operating power source for the vehicle 1000, but also the propulsion power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide propulsion power to the vehicle 1000.

[0057] 2 and 3, an embodiment of the present application provides a battery 100 including a housing 10, a battery module 20, a bus member 30, and two output members 40. The battery modules 20 are installed in the housing 10, and the number of the battery modules 20 is two or more and arranged along a first direction X, and each battery module 20 includes an even number of battery cells 21 arranged in a second direction Y, and the second direction Y is perpendicular to the first direction X. The battery cells 21 include a first side wall 211 and a second side wall 212 connected to each other, the first side wall 211 is the wall with the largest area among all the outer walls of the battery cell 21, the first direction X is perpendicular to the first side wall 211, and the second side walls 212 of two adjacent battery cells 21 are installed opposite to each other along the second direction Y. The bus member 30 is used to electrically connect two adjacent battery cells 21. The two output members 40 are installed on the same side of the first direction X. The two output ends are provided on the battery module 20 located at the outermost position along the first direction X, and the two output ends are arranged along the second direction Y. The two output members 40 are electrically connected to the two output ends respectively, thereby forming a power supply path together with the bus member 30.

[0058] In the embodiment of the present application, the second direction Y is perpendicular to the first direction X, and optionally, the first direction X may be the length direction of the housing 10, and correspondingly, the second direction Y is the width direction of the housing 10. Of course, the first direction X may be the width direction of the housing 10, and correspondingly, the second direction Y is the length direction of the housing 10.

[0059] The housing 10 may be a simple three-dimensional structure such as an independent rectangular parallelepiped or cylinder, or a complex three-dimensional structure formed by combining simple three-dimensional structures such as rectangular parallelepipeds or cylinders, and the embodiments of the present application are not limited thereto. The material of the housing 10 may be an alloy material such as an aluminum alloy or an iron alloy, a polymer material such as polycarbonate or polyisocyanurate foam, or a composite material such as glass fiber with epoxy resin, and the embodiments of the present application are not limited thereto.

[0060] The housing 10 is used to house the battery cells 21, and the housing 10 may have various structures as long as it can guarantee the requirements of hermeticity.

[0061] In the battery 100, the number of battery modules 20 is two or more and arranged along the first direction X, and each battery module 20 includes an even number of battery cells 21 arranged along the second direction Y. The number of battery cells 21 may be two, four, six, eight, ten, or more, as long as it is ensured that the number of battery cells 21 is an even number. When there are more than one battery cell 21, the battery module 20 can be configured with a series connection, a parallel connection, or a series-parallel connection between the multiple battery cells 21 along the second direction Y, and the multiple battery modules 20 are further integrally formed with a series connection, a parallel connection, or a series-parallel connection along the first direction X and accommodated in the housing 10, and the series-parallel connection refers to the multiple battery cells 21 being connected in series as well as in parallel.

[0062] In the present application, the battery cell 21 may include a lithium ion battery cell 21, a sodium ion battery cell 21, a magnesium ion battery cell 21, or the like, but the embodiments of the present application are not limited thereto. The battery cell 21 may be a flat body, a rectangular parallelepiped, or other shape, but the embodiments of the present application are not limited thereto. The battery cell 21 is generally divided into three types, namely, a cylindrical battery cell 21, a prismatic battery cell 21, and a soft-pack battery cell 21, depending on the packaging method, but the embodiments of the present application are not limited thereto. However, for the sake of simplicity, the following embodiments will be described taking the prismatic battery cell 21 as an example.

[0063] Referring to FIG. 2 , a battery cell 21 refers to the smallest unit constituting the battery 100 , and the battery cell 21 includes an end cover assembly 201 , a housing 202 , and an electrode assembly 203 .

[0064] The end cover assembly 201 is a member that covers the opening of the housing 202 to isolate the internal environment of the battery cell 21 from the external environment. The shape of the end cover assembly 201 can be adapted to the shape of the housing 202 to be fitted to the housing 202, but is not limited thereto. Optionally, the end cover assembly 201 can be made of a material (e.g., aluminum alloy) having a certain hardness and strength, so that the end cover assembly 201 is not easily deformed even when pressed or hit, the battery cell 21 can have higher structural strength, and safety performance can be improved. Functional members such as electrode terminals 201a may be provided on the end cover assembly 201. The electrode terminals 201a can be used to electrically connect with the electrode assembly 203, and are used to output or input electrical energy of the battery cell 21. In some embodiments, the end cover assembly 201 can further be provided with a pressure reducing mechanism that is used to release the internal pressure of the battery cell 21 when the internal pressure or temperature of the battery cell 21 reaches a threshold value. The end cover assembly 201 may be made of any material, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application are not particularly limited thereto. In some embodiments, an insulating material may be further installed inside the end cover assembly 201, and the insulating material may be used to isolate the electrical connection members in the housing 202 from the end cover assembly 201, thereby reducing the risk of short circuit. Exemplarily, the insulator may be plastic, rubber, etc.

[0065] The housing 202 is an assembly for forming an internal environment of the battery cell 21 by fitting with the end cover assembly 201, and the formed internal environment may be used to accommodate the electrode assembly 203, an electrolyte (not shown), and other components. The housing 202 and the end cover assembly 201 may be separate components, or an opening may be provided in the housing 202, and the end cover assembly 201 may cover the opening to form the internal environment of the battery cell 21. The end cover assembly 201 and the housing 202 may be integrated, specifically, the end cover assembly 201 and the housing 202 may form a common connection surface before other components are inserted into the housing, and when it is necessary to seal the inside of the housing 202, the end cover assembly 201 is placed over the housing 202, but is not limited thereto. The housing 202 may have various shapes and sizes, such as a rectangular parallelepiped. Specifically, the shape of the housing 202 is determined by the specific shape and size of the electrode assembly 203. The housing 202 may be made of any of a number of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application are not particularly limited thereto.

[0066] The electrode assembly 203 is a member that generates an electrochemical reaction in the battery cell 21. One or more electrode assemblies 203 may be included in the housing 202. The electrode assembly 203 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is generally provided between the positive electrode sheet and the negative electrode sheet. The parts of the positive electrode sheet and the negative electrode sheet that contain active materials constitute the main body of the electrode assembly 203, and the parts of the positive electrode sheet and the negative electrode sheet that do not contain active materials constitute the tabs. The positive electrode tab 203a and the negative electrode tab 203b may be located together at one end of the main body, or may be located at both ends of the main body. During the charging and discharging process of the battery cell 100, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tabs are connected to the electrode terminal 201a to form a current circuit.

[0067] Referring to FIG. 3 , the battery 100 provided in the embodiments of the present application further includes a bus member 30 and two output members 40, the bus member 30 is used to electrically connect two adjacent battery cells 21, the two output members 40 are installed on the same side in the first direction X, and the two output ends are installed on the battery module 20 located most outwardly along the first direction X, and the two output ends are arranged along the second direction Y, and the two output members 40 are electrically connected to the two output ends respectively, thereby forming a power supply path together with the bus member 30.

[0068] By installing in this manner, the two output members 40 and the two output ends of the battery 100 face the same side, which simplifies the connection structure, improves the space utilization rate within the housing 10, and is advantageous for processing and assembly. At the same time, it is possible to avoid using one long output member 40 to form a power supply path that straddles the battery module 20, which is advantageous for reducing weight and costs, making the battery cell 21 more compact, and improving the energy density.

[0069] Optionally, two adjacent battery cells 21 can be electrically connected via a bus member 30, and optionally, the bus member 30 may be connected to the electrode terminals 201a of the adjacent battery cells 21, thereby realizing a series connection, a parallel connection, or a series-parallel connection of multiple battery cells 21 within the same battery module 20 or within two adjacent battery modules 20.

[0070] The two output ends are provided on the battery module 20 located outermost along the first direction X, thereby ensuring that the two output members 40 can be provided on the same side in the first direction, simplifying the structure and improving the space utilization rate within the housing 10.

[0071] Alternatively, the bus members 30 may be fabricated using any of the following materials, such as aluminum, copper, or steel.

[0072] Alternatively, the output member 40 may be fabricated using any of the following materials, such as aluminum, copper, or steel.

[0073] Alternatively, the output member 40 may be integrally molded by a pressing process or by injection molding.

[0074] The two output ends are arranged along the second direction Y, so that the two output members 40 are arranged at a distance from each other in the second direction Y, thereby avoiding safety issues such as adjacent output members 40 coming into contact with each other and causing a short circuit, and ensuring the safety performance of the battery 100.

[0075] The number of battery cells 21 included in each battery module 20 is an even number, and alternatively, as shown in FIG. 5, the number of battery cells 21 included in each battery module 20 may be four, or of course, as shown in FIG. 4, six, or eight, as shown in FIG. 6.

[0076] Installing in this manner can ensure that after the bus member 30 is electrically connected to two adjacent battery cells 21, two output ends are formed on the outermost battery module 20 in the first direction X and arranged along the second direction Y, thereby ensuring that the two output members 40 are installed on the same side in the first direction X and avoiding the need to use one long output member 40 to form a power supply path across the battery modules 20, which is advantageous for reducing weight and cost, making the battery cells 21 more compact, and improving energy density.

[0077] The battery 100 provided in the embodiments of the present application has two output members 40, which are electrically connected to two output ends, and the two output ends are located on the outermost battery module 20 along the first direction X and arranged along the second direction Y, so that the two output members 40 are arranged on the same side in the first direction X, which can simplify the connection structure, improve the space utilization rate within the housing 10, and facilitate processing and assembly. At the same time, it is possible to avoid using one long output member 40 to form a power supply path across the battery modules 20, which is advantageous for reducing weight and cost, and improving the integration degree and energy density of the battery 100.

[0078] The battery 100 provided by the embodiment of the present application uses the above structural format, and during molding, the second side walls 212 of an even number of battery cells 21 are first arranged opposite each other along the second direction Y to form a battery module 20, and the battery modules 20 are arranged along the first direction X, and two adjacent battery cells 21 are electrically connected to each other using a bus member 30, and two output ends are formed on the outermost battery module 20 along the first direction X, and the two output ends are arranged along the second direction Y, and two output members 40 are further installed and electrically connected to the two output ends, respectively, to form a power supply path together with the bus member 30. This molding method can avoid forming a power supply path by using one long output member 40 across the battery modules 20, which is advantageous for reducing weight and cost, improving the integration degree and energy density of the battery 100, simplifying the connection structure, and improving the space utilization rate within the housing 10.

[0079] 2 to 6 , in some embodiments, the bus members 30 include a plurality of first bus members 31 and a plurality of second bus members 32, where the first bus members 31 are used to electrically connect two adjacent battery cells 21 along a first direction X, and the second bus members 32 are used to electrically connect two adjacent battery cells 21 along a second direction Y.

[0080] By installing in this manner, the bus members 30 can be assembled regularly, which improves the assembly efficiency, and can ensure the effectiveness of forming two output ends on the outermost battery module 20 in the first direction X, thereby ensuring that the two output members 40 are installed on the same side in the first direction X.

[0081] Alternatively, the first bus member 31 may be electrically connected to the electrode terminals 201a of adjacent battery cells 21 in the first direction X, thereby realizing a series connection, a parallel connection, or a series-parallel connection of multiple battery cells 21 in the same battery module 20. The second bus member 32 may be electrically connected to the electrode terminals 201a of adjacent battery cells 21 in the second direction Y, thereby realizing a series connection, a parallel connection, or a series-parallel connection of multiple battery cells 21 in two adjacent battery modules 20.

[0082] 2 to 6, in some embodiments, the second bus member 32 is used to electrically connect two adjacent battery cells 21 in the battery module 20 located at the outermost side along the first direction X.

[0083] By installing in this manner, except for adjacent battery cells 21 in the battery module 20 located outermost along the first direction X, the remaining battery cells 21 are all connected by the first bus member 31, and the outermost battery module 20 along the first direction X can form two output ends, thereby ensuring the effectiveness of installing the two output members 40 on the same side of the first direction X.

[0084] In some embodiments, the two output terminals are provided to two battery cells 21 located at the ends of the outermost battery module 20 in the second direction, respectively.

[0085] By installing in this manner, it is possible to ensure that the two output members 40 are installed on the same side in the first direction X, thereby simplifying the connection structure, improving the space utilization rate within the housing 10, and facilitating processing and assembly.

[0086] In addition, the length of the two output members 40 can be shortened, which is advantageous for reducing the weight and cost, and improving the integration degree and energy density of the battery 100.

[0087] In some embodiments, the battery 100 further includes a stopper member 50, which is fixedly connected within the housing 10 and abuts against the first side wall 211 of the battery cell 21, and the stopper member 50 is used to limit deformation of the battery cell 21 in the first direction X.

[0088] The provision of the stopper member 50 limits the deformation of the battery cells 21 in the first direction X, and protects the safe operation of the battery cells 21, thereby ensuring the safety performance of the battery 100. In addition, it can provide positioning for the battery module 20, which is advantageous for accurately and quickly mounting the battery module 20 at a preset position in the housing 10, and prevents misalignment during mounting that prevents other components from being mounted accurately, thereby improving mounting efficiency and accuracy, and thereby ensuring good quality of the battery 100.

[0089] Alternatively, the stopper member 50 and the housing 10 may have an integral structure and be formed through processes such as bending, pressing, etc. Of course, the stopper member 50 and the housing 10 may be provided separately and then connected together through methods such as welding, gluing, etc.

[0090] Alternatively, the number of the stopper members 50 may be one or two, and of course, a plurality of stopper members may be provided.

[0091] The stopper member 50 can limit the expansion deformation of the battery cell 21 in the first direction X, and protect the safe operation of the battery cell 21, thereby ensuring the safety of the battery 100.

[0092] In some embodiments, in the height direction Z of the housing 10, the ratio of the height dimension of the stopper member 50 to the height dimension of the battery cell 21 may be set between 2 / 3 and 11 / 10, including the two end points of 2 / 3 and 11 / 10, which not only meets the requirements for structural strength and resists the expansion effect, but also saves space and improves space utilization.

[0093] 3 to 6, in some embodiments, the battery 100 further includes an output member base 60, which is mounted on the stopper member 50 and serves to support the output member 40. Optionally, the output member base 60 includes an insulating material.

[0094] By installing in this manner, the stopper member 50 can be easily attached and fixed, and the occurrence of contact short circuit can be prevented, thereby ensuring the safety performance of the battery 100.

[0095] Alternatively, the number of output member bases 60 may be one, two, or, of course, multiple.

[0096] In some embodiments, the stopper member 50 is provided with an accommodating groove 51 , and the output member base 60 extends at least partially into the accommodating groove 51 .

[0097] The accommodating groove 51 can act to restrict the position of the output member base 60, preventing displacement that could pose a safety hazard to the battery 100, and at the same time, it also plays a role in positioning, making it easier to attach the output member base 60 and improving manufacturing efficiency.

[0098] Optionally, the number of the accommodating grooves 51 may be one or two, or of course, multiple grooves may be provided. Optionally, the shape of the accommodating groove 51 may be provided to match the shape of the output member base 60, so that the accommodating groove 51 can exactly accommodate the output member base 60, limit the position of the output member base 60, and prevent displacement.

[0099] Alternatively, the numbers of the accommodating grooves 51 and the output member bases 60 may correspond one-to-one, or may be multiple-to-one, i.e., multiple output member bases 60 may be installed in the same accommodating groove 51.

[0100] For example, two or more receiving grooves 51 are provided in the stopper member 50, and the two or more receiving grooves 51 are spaced apart from each other.

[0101] Alternatively, the accommodating groove 51 may be formed by press molding, that is, the accommodating groove 51 can be quickly formed in the stopper member 50, the process is simple, and at the same time, material can be saved, which is favorable for realizing a lightweight design.

[0102] In some embodiments, the stopper member 50 extends along the second direction Y and is fixedly connected to the housing 10 at both ends in the second direction Y.

[0103] By installing in this manner, the structural strength of the entire housing 10 can be improved, and the ability to resist expansion of the battery cells 21 can be improved, thereby ensuring safety performance.

[0104] In some embodiments, the stopper member 50 abuts against the first side wall 211 of the battery cell 21 in the outermost battery module 20 .

[0105] This installation method can provide positioning for the battery module 20, which is beneficial for improving the installation efficiency and accuracy, and ensures that the battery 100 has good quality.

[0106] Alternatively, the number of the stopper members 50 is one, and the stopper members 50 abut against the first side wall 211 of the battery cell 21 in one of the outermost battery modules 20 .

[0107] Optionally, the number of the stopper members 50 is two, and they abut against the first side walls 211 of the battery cells 21 in the two outermost battery modules 20 .

[0108] In some optional embodiments, the stopper member 50 is installed in the form of a plate-like structure, which is advantageous in reducing the arrangement space of the stopper member 50, thereby allowing the housing 10 to accommodate more battery cells 21, and improving the space utilization rate inside the housing 10.

[0109] For example, the cross-sectional areas of the parts of the stopper member 50 in the second direction Y are all the same, which facilitates production and saves the internal space of the housing 10. In addition, it is advantageous for each part of the stopper member 50 to be closely attached to the first side wall 211 of each battery cell 21, which improves the supporting and protective effects and improves the space utilization rate inside the housing 10.

[0110] The stopper member 50 abuts against the first side wall 211 of the battery cell 21, and can limit deformation of the battery cell 21 in the first direction X. When the battery cell 21 expands during charging or discharging, the stopper member 50 can provide a buffering effect for the battery cell 21 and even a force opposite in direction to the expanding force, which is beneficial for improving the operational safety of the battery cell 21 and ensuring the safety and reliability of the battery 100. At the same time, the stopper member 50 can provide a pressing force for the battery module 20 to achieve position limiting and fixing, and ensure good quality of the battery 100.

[0111] Furthermore, since the stopper member 50 is installed within the housing 10 and in contact with the battery cell 21, it is possible to reduce the number of end plates and connecting members, etc., which is advantageous for improving installation efficiency and installation accuracy, simplifying the manufacturing process, and reducing the manufacturing cost and the overall weight of the battery 100, thereby achieving a lightweight design.

[0112] In addition, by installing it in this manner, the stopper member 50 can be made a structural member of the housing 10, thereby satisfying the structural strength requirements, achieving a high degree of integration, and bringing the stopper member 50 and the battery cells 21 into closer contact with each other, which is advantageous for making the housing 10 more compact and improving the space utilization rate.

[0113] The first side wall 211 is set as the wall with the largest area among all the outer walls of the battery cell 21, thereby enabling the stopper member 50 to more effectively restrict and fix the position of the battery cell 21, and to play a role in resisting expansion and deformation and improving structural strength, thereby better ensuring the safety performance of the battery 100.

[0114] For example, two stopper members 50 may be installed, and the two stopper members 50 are respectively installed between the housing 10 and the first side wall 211 of the battery cell 21 and abut against the first side wall 211, not only realizing the functions of restricting the position of the battery cell 21, fixing it, and resisting expansion force, but also preventing the battery cell 21 from contacting the housing 10, thereby preventing electrical connection or thermal runaway from occurring; at the same time, the stopper members 50 provide support and protection for the battery cell 21, and improve structural strength.

[0115] The battery 100 provided by the embodiment of the present application uses the above-mentioned structure, and during molding, the second side walls 212 of each battery cell 21 in the same battery module 20 are first arranged opposite to each other, and the second side walls 212 of two adjacent battery cells 21 are connected to form a battery module 20 including two or more battery cells 21 arranged along the second direction Y of the housing 10. Then, the battery module 20 is clamped using a tool and inserted between the stopper members 50 spaced apart along the first direction X in the housing 10, and the tool is removed, whereby each battery cell 21 in the battery module 20 rebounds and presses the stopper member 50, so that the stopper member 50 abuts against the first side wall 211 of the battery cell 21, and the housing 10 is sealed to complete the manufacture of the battery 100. This molding method can improve the space utilization rate of the housing 10, realize a lightweight design, and is easy to manufacture, favorable to molding, and reduces costs while satisfying the requirements of positional restriction, fixing, and resistance to expansion deformation.

[0116] In some embodiments, a plurality of cavities extending along the second direction Y are provided within the stopper member 50 .

[0117] Alternatively, the cavities may be arranged to be spaced apart in a first direction X and, of course, may be arranged to be spaced apart in a height direction Z.

[0118] Optionally, in the height direction Z, the cavities may be arranged in one row, or of course, in multiple rows.

[0119] For example, the multiple cavities are set to be spaced apart in the height direction Z and are arranged in a row, thereby shortening the extension length of the stopper member 50 in the first direction X and providing more space within the housing 10 to accommodate more battery cells 21, which is advantageous in improving the energy density of the battery 100.

[0120] The stopper member 50 has a plurality of cavities extending therethrough in the second direction Y, which is advantageous in that when the battery cells 21 expand due to charging or discharging, the spaces within the cavities are compressed in the first direction X, so that the stopper member 50 can limit the deformation of the battery cells 21 and cushion and absorb the expansion force of the battery cells 21, thereby ensuring the safety performance of the battery cells 21.

[0121] In addition, the provision of the cavity reduces the weight of the stopper member 50, thereby reducing costs and realizing a lightweight design, while at the same time improving the energy density of the entire battery 100.

[0122] In some embodiments, the number of stopper members 50 installed on the plate-like structures may be two, the two plate-like structures are spaced apart in the first direction X, and the battery module 20 is sandwiched between the two plate-like structures.

[0123] For example, two stopper members 50 of the plate-like structure are set and arranged at an interval in the first direction X, and the battery module 20 is sandwiched between the two plate-like structures, i.e., the plate-like structure is located between the battery module 20 and the inner wall of the housing 10, and the plate-like structure is installed abutting the first side wall 211. The two plate-like structures are respectively used to limit the deformation of the battery cells 21 in the first direction X of the housing 10, which can more effectively meet the requirements of position limiting, fixing and resisting expansion, and better ensure the safety performance of the battery 100.

[0124] 3 to 7 , in some embodiments, a partition 70 is installed between two adjacent battery modules 20 along the first direction X, and the partition 70 abuts against the first side walls 211 of each battery cell 21 in the two adjacent battery modules 20.

[0125] By being installed in this manner, the dividers 70 can better serve to improve structural strength and / or resist expansion forces.

[0126] Optionally, the partition 70 can abut against the first side walls 211 of each battery cell 21 in two adjacent battery modules 20 to support the battery cells 21 as a structural member of the housing 10, thereby improving the structural strength, and the partition 70 can be used to resist the expansion force of the battery cell 21 that is abutted against it, thereby ensuring the safety performance of the battery 100.

[0127] In some embodiments, the ratio of the height dimension of the partition 70 in the height direction Z to the height dimension of the battery cell 21 may be set between 2 / 3 and 11 / 10, including the two end points of 2 / 3 and 11 / 10, which not only meets the requirements for structural strength and resists the expansion effect, but also saves space and improves space utilization.

[0128] Additionally, the dividers 70 may optionally be used for thermal management of the abutting battery cells 21 to ensure that the battery cells 21 remain within a proper temperature range, thereby ensuring safe performance of the battery 100.

[0129] In addition, the partition portion 70 can prevent the battery cells 21 of two battery modules 20 adjacent in the first direction X from coming into direct contact with each other, thereby preventing problems such as a short circuit.

[0130] Optionally, the number of battery modules 20 is two, but of course, a plurality of battery modules may be installed.

[0131] Similarly, the number of partitions 70 may be set to one, and when the number of battery modules 20 is set to two, one partition 70 is sandwiched between the two battery modules 20. Of course, a plurality of partitions 70 may be installed, and when the number of battery modules 20 is set to two, one partition 70 is sandwiched between each of two adjacent battery modules 20.

[0132] Alternatively, two or more battery modules 20 are arranged along the first direction X, and each battery module 20 includes two or more battery cells 21 arranged along the second direction Y of the housing 10, and the partition portion 70 can prevent the battery cells 21 in two adjacent battery modules 20 in the first direction X from coming into direct contact with each other, which could cause problems such as a short circuit.

[0133] In some embodiments, the divider 70 is adhesively fixed to the first sidewalls 211 of each battery cell 21 in two adjacent battery modules 20 .

[0134] Installation in this manner makes the connection between the partitions 70 and each battery cell 21 stronger and more stable, ensuring the safety and reliability of the battery 100. In addition, by using an adhesive method to connect the partitions 70 and each battery cell 21 together, the partitions 70 and each battery cell 21 of the battery module 20 can be bonded together before the whole is placed into the casing 10, which is advantageous for assembling the battery 100 module and also makes the installation of adjacent battery modules 20 more compact, improving the space utilization efficiency of the casing 10.

[0135] In addition, the use of an adhesive method is advantageous in reducing consumables and the overall weight, and is useful for designing a lightweight battery 100. Furthermore, the manufacturing process is simplified, and production and assembly efficiency are improved.

[0136] Optionally, a connecting adhesive layer may be provided between the partition 70 and the first side wall 211 to adhesively fix the partition 70 and each battery cell 21 together.

[0137] Optionally, the connection adhesive layer may include a thermally conductive structural adhesive, which not only has a high adhesive effect but also has properties such as heat conduction function, deterioration resistance, fatigue resistance, and corrosion resistance, and can improve the connection strength and heat management efficiency between the battery cells 21 and the partitions 70, and make the heat transfer between the battery cells 21 and the partitions 70 faster. Of course, the connection adhesive layer may further include a double-sided tape, etc.

[0138] In some embodiments, the divider 70 is used to regulate the temperature of the battery cell 21, and a media flow path is provided within the divider 70.

[0139] Alternatively, the partition 70 may be installed as a heat exchange plate, which is sandwiched between two adjacent battery modules 20 and connected to the first side wall 211. Such an installation adjusts the temperature of the battery cells 21 it contacts and realizes the requirements for thermal management of the battery cells 21. Since the first side wall 211 has the largest area of ​​all the outer walls of the battery cells 21, the contact area between the heat exchange plate and the battery cells 21 can be increased, which is advantageous for improving the efficiency of thermal management for the battery cells 21.

[0140] Each battery cell 21 may have two first side walls 211, i.e., the two first side walls 211 of each battery cell 21 are respectively connected to the partition 70, thereby more effectively improving the thermal management efficiency and ensuring the temperature stability of the battery cell 21.

[0141] Thermal management is understood to mean that heat is transferred between the partition 70 and the battery cell 21. For example, the partition 70 directly contacts the battery cell 21 to realize contact-type heat exchange, or a heat-conducting structure (such as a heat-conducting adhesive) is provided between the partition 70 and the battery cell 21 to perform heat exchange. Specifically, the partition 70 dissipates heat by cooling or heating the battery cell 21, controls the temperature of the battery cell 21 within an appropriate range, and improves the service life and safety performance of the battery cell 21. In addition, when a certain battery cell 21 experiences thermal runaway, the heat generated from the thermal runaway battery cell 21 is absorbed by the partition 70 in contact with it, lowering the temperature of the thermal runaway battery cell 21, thereby avoiding the problem of adjacent battery cells 21 also experiencing thermal runaway, and ensuring the safety performance of the battery cell 21.

[0142] Optionally, a partition 70 is sandwiched between each two adjacent battery modules 20, so that it can be understood that one partition 70 can act on and exchange heat with two battery modules 20, and one battery module 20 can exchange heat with two partitions 70, which is advantageous for improving thermal management efficiency and improving the safety and reliability of the battery cells 21.

[0143] A media flow path is provided within the partition 70, and a heat exchange medium (water, air, phase change material, etc.) can flow through the media flow path to perform heat exchange for the battery cells 21, thereby allowing the partition 70 to complete thermal management for the battery cells 21.

[0144] By installing as described above, the partition 70 can improve the structural strength of the entire battery 100 as a structural member of the housing 10, thereby eliminating the need for vertical and horizontal beams inside the housing 10, achieving high integration, cost reduction, improved space utilization rate of the housing 10, and lightweight design. In addition, since the first side wall 211 is the wall with the largest area among all the outer walls of the battery cell 21, the partition 70 can more effectively exchange heat with the battery cell 21, improving thermal management efficiency. In addition, by sandwiching the partition 70 between two adjacent battery modules 20, it is possible to prevent the partition 70 from being damaged and even causing leakage under operating conditions such as collision and vibration, thereby improving the service life, safety, and reliability of the partition 70, and improving the thermal management efficiency of the battery cell 21, thereby further ensuring the safety performance of the battery 100.

[0145] Referring to FIG. 8, in some embodiments, the battery 100 further includes a communicating flow path 71, a supply pipe 72 and a discharge pipe 73, and the media flow paths of each partition 70 are connected via the communicating flow path 71, and the supply pipe 72 and the discharge pipe 73 are connected to the media flow path of the same partition 70.

[0146] Alternatively, the communicating flow path 71, the supply pipe 72 and the exhaust pipe 73 may be installed on the same side extending along the second direction Y of the partition portion 70, or of course, they may be installed on both sides extending along the second direction Y of the partition portion 70.

[0147] Alternatively, the extending direction of the supply pipe 72 and the extending direction of the discharge pipe 73 may be the same or different.

[0148] Alternatively, a communicating flow path 71 may be provided on both sides of the medium flow path of one partition 70 extending along the second direction Y, and the communicating flow paths 71 on both sides of the medium flow path of each partition 70 are connected in sequence and respectively to a supply pipe 72 and a discharge pipe 73, making assembly and replacement easier and more flexible.

[0149] In addition, the communication flow passages 71, the supply pipes 72, and the discharge pipes 73 can be arbitrarily combined to be applicable to various numbers of the partition sections 70, which is advantageous in improving versatility and versatility.

[0150] Optionally, a connecting member may be provided on both sides of the partition 70 extending along the second direction Y, thereby connecting to the communication channel 71 and improving the connection strength.

[0151] By installing in this manner, the medium flow path of each partition 70 can meet the requirements for heat exchange medium only through one supply pipe 72 and one discharge pipe 73, thereby reducing the space occupation rate and simplifying the structure of the supply pipes 72 and the discharge pipes 73, which is convenient for assembly and replacement, and can be adapted to supply heat exchange medium to different numbers of partitions 70, improving flexibility and versatility.

[0152] In some embodiments, the housing 10 is provided with through holes, and the supply pipe 72 and the exhaust pipe 73 each extend out from the housing 10 through the through holes.

[0153] By installing in this manner, one end of the supply pipe 72 and the discharge pipe 73 extend outside the casing 10, the supply pipe 72 can be connected to an external device for supplying heat exchange medium, which is advantageous for obtaining and sending the heat exchange medium to the partition 70, and the discharge pipe 73 can be connected to an external device for storing heat exchange medium, which allows the heat exchange medium that has exchanged heat with the battery cells 21 to be discharged, which is advantageous for obtaining and removing the heat exchange medium, and at the same time reduces the risk of the heat exchange medium leaking inside the casing 10, thereby ensuring the safety and reliability of the battery 100.

[0154] Alternatively, the device for supplying the external heat exchange medium and the device for storing the heat exchange medium may be installed as the same device, or, of course, may be two separate devices.

[0155] Referring to FIG. 3, in some embodiments, the housing 10 includes a top cover 11, a bottom cover 12 and a accommodating frame 13, the bottom cover 12 and the top cover 11 are installed at both ends of the accommodating frame 13 opposite each other in the height direction Z of the housing 10, and the stopper member 50 is connected to at least one of the accommodating frame 13, the top cover 11 and the bottom cover 12, respectively.

[0156] The housing 10 that houses the battery cells 21 is formed by being surrounded by the top cover 11, the bottom cover 12 and the housing frame 13, thereby ensuring the required sealing performance.

[0157] Optionally, the accommodating frame 13 may have an opening 10a, or alternatively, the accommodating frame 13 may have an opening 10a on one side, that is, the accommodating frame 13 and one of the top cover 11 and the bottom cover 12 are integrally molded, and the other seals the opening 10a and is connected to the accommodating frame 13 to form the housing 10 surrounding the battery module 20 for sealing and protecting it. Naturally, the accommodating frame 13 may have openings 10a on both sides, and the top cover 11 and the bottom cover 12 are used to seal the two openings 10a, respectively, and are connected to the accommodating frame 13 to form the housing 10 surrounding the battery module 20 for sealing and protecting it.

[0158] In order to improve the sealing performance after the accommodating frame 13 is connected to the top cover 11 and the bottom cover 12, a sealing member such as a sealant or a seal ring may be installed between the accommodating frame 13 and the top cover 11 or the bottom cover 12.

[0159] Alternatively, the top cover 11, the bottom cover 12 and the receiving frame 13 may be connected by bolts, flow drill screws (FDS), adhesives, welding, etc., and the present application is not limited thereto.

[0160] Alternatively, the top cover 11 or the bottom cover 12 may be made of a material (such as an aluminum alloy) having a certain degree of high hardness and strength, making it difficult to deform, providing higher structural strength, and improving safety performance.

[0161] Alternatively, the bottom cover 12 and the receiving frame 13 may be formed as an integral structure, or of course, the bottom cover 12 and the receiving frame 13 may be provided separately and then connected together by welding, adhesive or other methods.

[0162] For example, the bottom cover 12 and the receiving frame 13 may be removably connected, which can reduce costs and make it easy to replace the bottom cover 12 or the receiving frame 13 when problems such as damage occur.

[0163] Alternatively, the bottom cover 12 and the receiving frame 13 may be made of the same material, or of course, they may be made of different materials.

[0164] Alternatively, the bottom cover 12 may be made of a material (such as an aluminum alloy) having a certain degree of high hardness and strength, so that it is less likely to deform, has higher structural strength, and improves safety performance.

[0165] In some embodiments, the bottom cover 12 may be manufactured using a material having higher strength than the material of the housing frame 13, which is advantageous in absorbing external impact forces and achieving a cushioning effect for the battery 100, preventing the battery 100 from being deformed and broken during vibration, impact, etc., improving the safety and reliability of the battery 100, further improving the overall structural strength of the battery 100, and suitable for various operating conditions.

[0166] Optionally, the bottom cover 12 may further be provided with a reinforcing rib structure, which can better improve the structural strength of the battery 100 .

[0167] By connecting the stopper member 50 to the housing frame 13 and at least one of the top cover 11 and the bottom cover 12, it is possible to set the structure of the entire battery 100 based on different needs, thereby improving versatility.

[0168] Alternatively, the stopper member 50 may be connected to the accommodating frame 13 and the bottom cover 12, or of course, to the accommodating frame 13 and the top cover 11, or of course, to the accommodating frame 13, the top cover 11 and the bottom cover 12.

[0169] For example, the stopper member 50 is connected to the accommodating frame 13 and the bottom cover 12, and the stopper member 50 is installed at a distance from the top cover 11. During assembly molding, the battery cell 21 and the stopper member 50 can be first connected to the accommodating frame 13 and the bottom cover 12, and then the top cover 11 can be covered to form the housing 10 with a sealed space.

[0170] For example, the stopper member 50 is installed at a distance from the top cover 11, and optionally, at least a portion of the top cover 11 can be recessed in the height direction Z away from the battery cells 21 to form a recess, and when a gap exists between the recess and the stopper member 50 and other operating conditions such as collision, vibration, etc. occur, the gap can provide a buffering effect, which is advantageous for better supporting and protecting the stopper member 50 and the battery cells 21, and improves safety and reliability.

[0171] In some embodiments, the housing 10 further includes a connection base 14, which protrudes from the housing frame 13 along the second direction Y, and the connection base 14 is used to attach the battery 100 to a power consumption device.

[0172] The installation of the connection base 14 helps to connect and fix the entire battery 100 to the power consumption device in which it is used, such as to the chassis of the vehicle 1000, thereby improving the stability of the connection and making the connection more robust, while at the same time avoiding safety risk issues for the battery 100 caused by poor connection, thereby ensuring the safety and reliability of the battery 100.

[0173] Alternatively, the connection base 14 is provided protruding on one side of the accommodating frame 13 along the second direction Y, and naturally, a protruding connection base 14 is provided on both sides of the accommodating frame 13 along the second direction Y.

[0174] 2 and 3, in some embodiments, the battery cell 21 includes an electrode terminal 201a, and a surface of the battery cell 21 away from the electrode terminal 201a along the height direction Z is connected to the top cover 11 or the bottom cover 12.

[0175] By mounting the battery cells 21 in this manner, the battery cells 21 can be positioned upright within the housing 10 or upside down within the housing 10, improving options for manufacturing and molding the battery 100.

[0176] Optionally, a surface of the battery cell 21 away from the electrode terminal 201a along the height direction Z is connected to the bottom cover 12. As will be understood, the battery cell 21 is arranged upright in the housing 10, i.e., the electrode terminal 201a is installed adjacent to the top cover 11, and when the battery cell 21 is attached to a power consuming device such as a vehicle 1000, the electrode terminal 201a of the battery cell 21 faces upward, which prevents the electrode terminal 201a from rubbing against the bottom cover 12 when the entire battery 100 is shaken or vibrated, thereby ensuring the safety performance of the battery 100.

[0177] Optionally, a surface of the battery cell 21 away from the electrode terminal 201a along the height direction Z is connected to the top cover 11. As will be understood, the battery cell 21 is arranged in an inverted manner within the housing 10, and when the battery cell 21 is mounted on a power consuming device such as a vehicle 1000, the battery cell 21 can be arranged in an inverted manner with the electrode terminal 201a of the battery cell 21 facing downward, thereby improving the space utilization rate in the height direction Z of the housing 10 and ensuring the physical safety of the driver.

[0178] In some embodiments, the battery 100 further includes a buffer member, which is provided along the height direction Z between the electrode terminal 201a and the top cover 11 or the bottom cover 12.

[0179] By providing a cushioning member, when the entire battery 100 is shaken or vibrated, the cushioning member can provide a cushion for the electrode terminal 201a of the battery cell 21, preventing the electrode terminal 201a from rubbing against the top cover 11 or the bottom cover 12 and damaging structures such as the pressure reduction mechanism, thereby ensuring the safety performance of the battery 100.

[0180] According to a second aspect, an embodiment of the present application provides a power consuming device including the battery 100 of any of the above embodiments, the battery 100 providing electrical energy to enable the power consuming device to operate normally.

[0181] Referring to FIG. 9, according to a third aspect, an embodiment of the present application provides a method for forming a battery 100, including the following steps S100 to S500.

[0182] In step S100, an even number of battery cells 21 are provided. Each battery cell 21 includes a first side wall 211 and a second side wall 212, and the first side wall 211 is the wall with the largest area among all the outer walls of the battery cell 21.

[0183] In step S200, the plurality of battery cells 21 are grouped, each group including an even number of battery cells 21, and the second side walls 212 of each battery cell 21 in the same group are placed opposite to each other to form two or more battery modules 20.

[0184] In step S300, two or more battery modules 20 are stacked and the whole is placed inside the housing 10.

[0185] In step S400 , the battery cells 21 of each battery module 20 are electrically connected via the bus members 30 .

[0186] In step S500, two output members 40 are provided, the two output members 40 are arranged on the same side in the first direction X, the two output members 40 are electrically connected to two output ends installed on the battery modules 20 located outermost along the first direction X, and the two output ends are arranged along the second direction Y, thereby forming a power supply path together with the bus member 30.

[0187] In step S100, the provided battery cell 21 may be one of the battery cells 21 mentioned in the above embodiments.

[0188] In step S200, the plurality of battery cells 21 are grouped, and each group includes an even number of battery cells 21. Alternatively, each group may include four battery cells 21, six battery cells 21, or eight battery cells 21, and the present application is not limited thereto, as long as it is ensured that the number of battery cells 21 included in each group is an even number.

[0189] In step S300, two or more battery modules 20 can be placed together in the housing 10 as a whole, and optionally, a tool can be used to clamp the battery modules 20 into the housing 10, and after the tool is removed, each battery cell 21 in the battery module 20 will rebound and press the housing 10, fitting tightly with the housing 10 and sealing the housing 10 to complete the manufacture of the battery 100. This molding method improves the connection strength, makes the space between the battery cells 21 more compact, improves the space utilization rate of the housing 10, realizes a lightweight design, and is simple to manufacture, advantageous to molding, and reduces costs.

[0190] In step S400, the bus member 30 may be electrically connected to two adjacent battery cells 21 in the same battery module 20, and of course, may also be electrically connected to two adjacent battery cells 21 in two adjacent battery modules 20.

[0191] Optionally, in step S500, the two or more output members 40 are installed on the same side of the battery 100 in the first direction X, and are respectively electrically connected to two output ends installed on the battery modules 20 located outermost in the first direction X, and the two output ends are arranged in the second direction Y to form a power supply path together with the bus member 30. This molding method can avoid forming a power supply path in a form spanning the battery modules 20 using one long output member 40, which is advantageous in reducing weight and cost, improving the integration degree and energy density of the battery 100, simplifying the connection structure, and improving the space utilization rate within the housing 10.

[0192] Alternatively, the two output ends may be respectively installed on two battery cells 21 located at the ends of the outermost battery module 20 in the second direction Y, which is advantageous for shortening the length of the two output members 40, thereby reducing weight and cost, and improving the integration density and energy density of the battery 100.

[0193] In addition, the embodiments and features of the embodiments in the present application can be combined with each other as long as they are not contradictory.

[0194] The final point to be explained is as follows: The above embodiments are only for illustrating the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand the following: Those skilled in the art may still modify the technical solutions described in the above embodiments, or substitute some of the technical features therein for equivalents, but these modifications or substitutions will not cause the substance of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. The battery pack includes a housing, a battery module installed in the housing, a bus member, and two output members; the number of the battery modules is two or more and the battery modules are arranged along a first direction, each of the battery modules includes an even number of battery cells arranged along a second direction, the second direction is perpendicular to the first direction, the battery cells include a first side wall and a second side wall connected to each other, the first side wall is a wall having a largest area among all the outer walls of the battery cell, the first direction is perpendicular to the first side wall, and the second side walls of two adjacent battery cells are installed facing each other along the second direction, the bus member is used to electrically connect two adjacent battery cells; The two output members are disposed on the same side in the first direction, A battery in which two output terminals are provided on the battery module located outermost along the first direction, the two output terminals are arranged along the second direction, and the two output members are electrically connected to the two output terminals respectively, thereby forming a power supply path together with the bus member.

2. 2. The battery of claim 1, wherein the bus members include a plurality of first bus members and a plurality of second bus members, the first bus members being used to electrically connect two adjacent battery cells along the first direction, and the second bus members being used to electrically connect two adjacent battery cells along the second direction.

3. The battery according to claim 2 , wherein the second bus member is used to electrically connect two adjacent battery cells in the battery module located at the outermost side in the first direction.

4. The battery according to any one of claims 1 to 3, wherein the two output terminals are provided on two of the battery cells located at ends in the second direction of the outermost battery module, respectively.

5. The battery of any one of claims 1 to 4, further comprising a stopper member, the stopper member fixedly connected within the housing and abutting the first side wall of the battery cell, the stopper member being used to limit deformation of the battery cell in the first direction.

6. 6. The battery of claim 5, further comprising an output member base, said output member base being provided on said stopper member and used to support said output member.

7. The battery according to claim 5 or 6, wherein the stopper member extends along the second direction and is connected to the housing at both ends in the second direction.

8. The battery according to claim 5 , wherein the stopper member abuts against the first side wall of the battery cell in the outermost battery module.

9. The battery of claim 8 , wherein a plurality of cavities extending through the stopper member along the second direction are provided within the stopper member.

10. The battery according to any one of claims 1 to 9, wherein a partition portion is provided between two adjacent battery modules along the first direction, and the partition portion abuts against the first side walls of each of the battery cells in the two adjacent battery modules.

11. The battery according to claim 10 , wherein the divider is adhesively fixed to the first side walls of each of the battery cells in two adjacent battery modules.

12. The battery according to claim 10 , wherein the partition is used to adjust the temperature of the battery cell, and a media flow path is provided within the partition.

13. The battery according to claim 12 , further comprising a communicating flow passage, a supply pipe, and a discharge pipe, the medium flow passages of each of the partitions communicate with each other via the communicating flow passage, and the supply pipe and the discharge pipe communicate with the medium flow passage of the same partition.

14. The battery according to any one of claims 1 to 13, wherein the housing includes a top cover, a bottom cover and a housing frame, the bottom cover and the top cover are installed at both ends of the housing frame facing each other in the height direction of the housing, and the stopper members are each connected to at least one of the housing frame and the top cover and the bottom cover.

15. The battery of claim 14 , wherein the housing further includes a connection base, the connection base protruding from the housing frame along the second direction, and the connection base is used to attach the battery to a power consuming device.

16. The battery according to claim 14 , wherein the battery cell includes an electrode terminal, and a surface of the battery cell away from the electrode terminal along the height direction is connected to the top cover or the bottom cover.

17. 17. A power consuming device comprising a battery according to any one of claims 1 to 16 used to supply electrical energy.

18. providing an even number of battery cells, each of the battery cells including a first side wall and a second side wall, the first side wall being a wall having a largest area among all the outer walls of the battery cell; grouping a plurality of the battery cells, each group including an even number of the battery cells, and the second side walls of the battery cells of the same group being disposed opposite each other to form two or more battery modules; stacking two or more of the battery modules and disposing the entirety within a housing; electrically connecting the battery cells of each of the battery modules via a bus member; providing two output members, the two output members being provided on the same side in a first direction, the two output members being electrically connected to two output ends installed on the battery module located outermost along the first direction, and the two output ends being arranged along a second direction, thereby forming a power supply path together with the bus member.

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