Batteries and power-consuming devices

Abstract

The battery (1000) and the power consumption device (2000) include the battery (1000) including at least one battery pack (100), each battery pack (100) including a plurality of battery strings (10), each battery string (10) including a plurality of battery cells (11) arranged along a first direction, the electrical connection portions of two adjacent battery cells (11) in each battery string (10) being connected by a first electrical connection member (30), the plurality of battery strings (10) being arranged along a second direction, and an information collection member (20), the information collection member (20) being provided on one side of the plurality of battery strings (10) in a third direction, the third direction and the second direction being perpendicular to each other in the first direction, the information collection member (20) being electrically connected to a plurality of first electrical connection members (30) corresponding to at least two battery strings (10).

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This application is based on and claims priority from a Chinese patent application having application number 202311203170.5 and filing date September 18, 2023, the entire contents of which are hereby incorporated by reference into this application.

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

[0003] Energy conservation and reduced pollutant emissions are key to the sustainable development of the automotive industry, and electric vehicles, with their energy-saving and environmentally friendly advantages, have become an important component of this industry. However, battery technology is a key factor in the development of electric vehicles.

[0004] With the continuous development of the power battery industry, the requirements for battery performance are becoming higher and higher, and the cost of batteries is constantly increasing. Summary of the Invention

[0005] In view of the above problems, the present application provides a battery and a power consuming device that can reduce manufacturing costs.

[0006] According to a first aspect, the present application provides a battery, including at least one battery pack, each of the battery packs including a plurality of battery strings, each of the battery strings including a plurality of battery cells arranged along a first direction, wherein the electrical connections of two adjacent battery cells in each of the battery strings are connected by a first electrical connection member, and the plurality of battery strings are arranged along a second direction; and an information collection member, wherein the information collection member is provided on one side of the plurality of battery strings in a third direction, the third direction and the second direction are perpendicular to the first direction by two each, and the information collection member is electrically connected to a plurality of the first electrical connection members corresponding to at least two of the battery strings.

[0007] In the technical solution of the embodiments of the present application, the multiple battery cells in each battery pack are connected to the information collection member by a first electrical connection member, which facilitates connection sampling of the multiple battery cells and obtains information on each battery cell, etc., so that the multiple battery strings in each battery pack can share one information collection member, which can effectively reduce the number of information collection members in the battery, play a role in reducing the manufacturing cost of the battery, and improve the market competitiveness of the product.

[0008] In some embodiments, in each of the battery packs, the information collection member corresponds to a central position of the plurality of battery strings in the second direction. The above technical solution can facilitate connection between the information collection member and the plurality of first electrical connection members, and since the information collection member is located in the central portion, there is no need to perform a bending process on the information collection member, thereby minimizing the length dimension of the information collection member and reducing the manufacturing cost of the information collection member.

[0009] In some embodiments, the information collection member extends along the first direction. In the above technical solution, by adopting the above-mentioned arrangement structure, it is possible to easily connect the information collection member to the plurality of first electrical connection members, improve the convenience of the connection, and at the same time, minimize the length dimension of the information collection member, thereby reducing the manufacturing cost of the information collection member.

[0010] In some embodiments, the electrical connection portion includes a first electrical connection portion and a second electrical connection portion, the first electrical connection portion and the second electrical connection portion have opposite polarities, and the first electrical connection portion and the second electrical connection portion are located on the same side of the battery cell. In the above technical solution, the first electrical connection member facilitates connecting two connection portions of two adjacent battery cells with different polarities, and the first electrical connection member may be located on one side of the battery cell where the two electrical connection portions are located, and the information collection member may be located on the same side, further improving connection convenience.

[0011] In some embodiments, in each battery string, the first electrical connection of one battery cell and the second electrical connection of one adjacent battery cell are connected by the first electrical connection member, which can realize current transmission and simultaneously accumulate the voltage within the battery string to reach the required output voltage.

[0012] In some embodiments, in each battery string, the first electrical connection portion of one battery cell corresponds to the position of the second electrical connection portion of an adjacent battery cell and is connected by the first electrical connection member, and the first electrical connection member extends along the first direction. The above technical solution can realize current transmission between battery cells, and the first electrical connection member extends along the front-rear direction, facilitating cooperation between the first electrical connection member and the two connection portions, thereby shortening the length of the first electrical connection member and reducing manufacturing costs, while at the same time ensuring to a certain extent stable current transmission and voltage transmission between battery cells in the battery string.

[0013] In some embodiments, in each battery string, the first electrical connection portion of one battery cell and the second electrical connection portion of an adjacent battery cell are offset in the first direction and connected by the first electrical connection member, and the extension direction of the first electrical connection member is inclined with respect to the first direction and the second direction. In the above technical solution, current transmission between two battery cells is realized, and the first electrical connection member may form a straight line shape, thereby simplifying the structure of the first electrical connection member and facilitating manufacturing and molding of the first electrical connection member.

[0014] In some embodiments, in each battery string, at least two adjacent battery cells form a battery combination, the positions of the first electrical connection portions of the battery cells in each battery combination correspond to each other, the positions of the second electrical connection portions of the battery cells in each battery combination correspond to each other, and the first electrical connection portion of one battery combination and the second electrical connection portion of one adjacent battery combination are connected by the first electrical connection member. In the above technical solution, in order to realize current transmission, two adjacent battery cells can be connected in parallel to each other, and the capacities of the battery cells can be overlapped, and at the same time, two adjacent battery cells can be connected in series to overlap the voltages in the battery string to achieve a required output voltage.

[0015] In some embodiments, in each battery string, the first electrical connection portion of one battery combination corresponds to the position of the second electrical connection portion of the adjacent battery combination and is connected by the first electrical connection member, and the first electrical connection member extends along the first direction. In the above technical solution, the two second electrical connection portions of the first battery combination and the two first electrical connection portions of the second battery combination are connected by the first electrical connection member to realize current transmission between the battery cells, and the first electrical connection member extends along the front-to-rear direction, facilitating cooperation between the first electrical connection member and the four connection portions, thereby shortening the length of the first electrical connection member and reducing manufacturing costs, while at the same time ensuring to a certain extent stable current transmission and voltage transmission between the battery cells in the battery string.

[0016] In some embodiments, in each battery string, the first electrical connection portion of one battery combination and the second electrical connection portion of an adjacent battery combination are offset in the first direction and connected by the first electrical connection member, and the first electrical connection member has a bent shape. This technical solution can facilitate connection between the first electrical connection member and the electrical connection portions of the four battery cells, thereby realizing current transmission and series-parallel connection of the battery cells.

[0017] In some embodiments, in two adjacent battery strings, the first electrical connection portion of the battery cell located at one end of the battery string is connected to the second electrical connection portion of the battery cell at one end of the adjacent battery string by a second electrical connection member. The above technical solution realizes electrical connection between battery strings and adjacent battery strings, thereby connecting multiple battery strings together to provide larger electrical energy storage capacity or improve output power.

[0018] In some embodiments, the battery cell has a pressure relief part, the pressure relief part and the electrical connection part are located on the same side of the battery cell, and the pressure relief part and the first electrical connection member are not projected along the third direction. In the above technical solution, the first electrical connection member and the pressure relief part are offset from each other to improve the reliability and stability of the battery cell and to some extent avoid safety risks.

[0019] In some embodiments, the battery cell has a pressure relief part, and the pressure relief part and the electrical connection part are located on different sides of the battery cell. In the above technical solution, the first electrical connection member and the second electrical connection member cooperate with the electrical connection part without interfering with the pressure relief part, allowing high-pressure gas in the battery cell to be discharged through the pressure relief part, improving the exhaust efficiency of the pressure relief part and improving the reliability and stability of the battery cell.

[0020] In some embodiments, the plurality of battery strings include a first battery string and a second battery string, the first battery string includes a plurality of first battery cells, two adjacent first battery cells being connected by a first electrical connecting member, the second battery string is located on one side of the first battery string in the second direction and includes a plurality of second battery cells, two adjacent second battery cells being connected by a first electrical connecting member, one first battery cell and one second battery cell being connected by a second electrical connecting member, and the information collection member is electrically connected to the plurality of first electrical connecting members and the second electrical connecting members corresponding to the first battery string and the second battery string. The above technical solution can realize information collection of the plurality of battery cells in the first battery string and the second battery string, for example, by collecting temperature and voltage, and can also facilitate monitoring of the status of the battery cells.

[0021] In some embodiments, the information collection member and the first electrical connection member are directly connected. The above technical solution can reduce the number of parts, reduce manufacturing costs, and at the same time reduce assembly operations and improve assembly efficiency.

[0022] In some embodiments, one of the information collection member and the first electrical connection member has a support leg, and the other of the information collection member and the first electrical connection member is connected to the support leg. In the above technical solution, the provision of the support leg not only facilitates the connection between the information collection member and the first electrical connection member, but also reduces manufacturing costs without excessively increasing the dimensions of the information collection member or the first electrical connection member.

[0023] In some embodiments, the information collection member and the first electrical connection member are welded together. In the above technical solution, connecting the two by welding ensures a reliable connection between the information collection member and the first electrical connection member, and simultaneously enables the transmission of electrical signals, facilitating connection and improving assembly efficiency.

[0024] In some embodiments, each of the battery packs further includes a conductive member, and the first electrical connection member is connected to the information collection member by the conductive member. In the above technical solution, the conductive member may be a nickel sheet, which is a conductive material that can effectively transmit electric current and has good corrosion resistance.

[0025] In some embodiments, each battery pack further includes a temperature collection module adapted to contact the battery cells and collect the temperatures of the battery cells. The above technical solution facilitates timely detection of abnormal temperature situations and taking appropriate measures, such as heat dissipation or threshold alarm, to ensure the safety and performance of the battery cells.

[0026] In some embodiments, the temperature collection module is integrated into the information collection member. In the above technical solution, by integrating the temperature collection module into the information collection member, the temperature of the battery cell can be easily measured and recorded, and the temperature data can be processed and analyzed together with other parameter data, so that the information collection member not only has the function of collecting other battery cell parameters, but also has the function of collecting battery cell temperatures.

[0027] In some embodiments, the temperature collection module is integrated into the first electrical connection member. In the above technical solution, by integrating the temperature collection module into the first electrical connection member, the temperature of the battery cell can be easily measured, and the temperature data can be transmitted to a battery management system or other monitoring equipment for real-time monitoring and analysis, so as to realize real-time understanding of the temperature of the battery cell and real-time response and management to abnormal temperature situations. Thus, the first electrical connection member can transmit current and collect temperature, thereby expanding the function of the first electrical connection member.

[0028] In some embodiments, the information collection component is a flexible circuit board. The use of a flexible circuit board in the above technical solution can to some extent avoid the situation where high-pressure gas cannot be discharged, thereby reducing safety risks.

[0029] According to a second aspect, the present application provides a power consuming device, the power consuming device including a battery according to any of the above embodiments, the battery being used to provide electrical energy.

[0030] The above description is merely a summary of the technical solution of the present application, which may be implemented according to the contents of the specification in order to more clearly understand the technical means of the present application. In order to make the above and other objectives, features and advantages of the present application more clearly understandable, the following particularly cites specific embodiments of the present application for description. [Brief explanation of the drawings]

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments. The drawings are only used to illustrate the purpose of the preferred embodiments and are not to be considered as limitations on the present application. Note that the same drawing numbers refer to the same elements in all drawings. In the drawings, [Figure 1] 1 is a schematic diagram of a power consuming device in the related art; [Figure 2] FIG. 1 is a schematic diagram of a battery in the related art. [Figure 3] FIG. 1 is a schematic diagram of a battery cell in the related art. [Figure 4] FIG. 1 is a schematic diagram of another battery cell in the related art. [Figure 5] 1 is a schematic diagram of a battery according to some embodiments of the present application. [Figure 6] FIG. 1 is a schematic diagram of a battery pack according to some embodiments of the present application. [Figure 7] FIG. 2 is a schematic diagram of a battery pack according to some further embodiments of the present application. [Figure 8] FIG. 2 is a schematic diagram of a battery pack according to some further embodiments of the present application. [Figure 9] 1 is a schematic diagram of a battery pack according to some further embodiments of the present application. [Figure 10] FIG. 2 is a schematic diagram of a battery pack according to some further embodiments of the present application. [Figure 11] FIG. 2 is a schematic diagram of a battery pack according to some further embodiments of the present application. [Figure 12] 1 is a schematic diagram of a battery pack according to some further embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0032] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present application, the following will clearly describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without any creative efforts fall within the scope of protection of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those skilled in the art of this application, and the terms used in the specification of this application are only for describing specific embodiments and are not intended to limit this application, and the terms "comprises," "has," and any variations thereof in the specification and claims of this application and the above drawings are intended to cover a non-exclusive "comprise." The terms "first," "second," etc. in the specification and claims of this application or the above drawings are not intended to describe a specific order or a hierarchical relationship, but are intended to distinguish different objects.

[0034] An "embodiment" referred to in this application means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of this phrase in various places in the specification do not necessarily all refer to the same embodiment, nor are they mutually exclusive, separate, or alternative embodiments of other embodiments.

[0035] In the description of this application, it should be explained that unless otherwise clearly defined or limited, the terms "attached," "connected," "joined," and "attached" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection, a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0036] The term "and / or" in this application merely describes the relationship between related objects and indicates that three relationships may exist, for example, A and / or B may represent three cases: A alone, a combination of A and B, and B alone. Also, the character " / " in this application generally indicates that the related objects before and after are in an "or" relationship.

[0037] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments will be omitted. It should be understood that the dimensions such as thickness, aspect, etc. of various components in the embodiments of the present application shown in the drawings, and the dimensions such as thickness, aspect, etc. of the entire integrated device are for illustrative purposes only and do not constitute any limitations on the present application.

[0038] The term "plurality" as used herein refers to two or more (including two).

[0039] In this application, a battery 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. Some batteries may include a housing for packaging one or more battery cells or multiple battery modules. The housing can prevent liquids or other foreign objects from affecting the charging or discharging of the battery cells. Of course, some batteries may not include the housing and may be directly installed in a battery mounting compartment of a power-consuming device.

[0040] 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, or a magnesium ion battery, etc., but the embodiments of this application are not limited thereto. The battery cell may have a cylindrical, flat, rectangular, or other shape, etc., but the embodiments of this application are not limited thereto. Battery cells are generally divided into three types based on packaging method: cylindrical battery cells, rectangular battery cells, and pouch battery cells, but the embodiments of this application are not limited thereto.

[0041] For example, a battery cell may include a housing, an electrode assembly, and an electrolyte, with the housing used to contain the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode plate, a negative electrode plate, and a separator. The battery cell operates primarily through the movement of metal ions between the positive electrode plate and the negative electrode plate. The positive electrode plate 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 coated with the positive electrode active material layer, and the positive electrode current collector without the positive electrode active material layer is called a positive electrode tab. For example, in a lithium-ion battery, 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, lithium manganese oxide, or the like.

[0042] The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer being coated on the surface of the negative electrode current collector, the negative electrode current collector not coated with the negative electrode active material layer protruding from the negative electrode current collector coated with the negative electrode active material layer, and the negative electrode current collector not coated with the negative electrode active material layer is referred to as a negative electrode tab. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. To prevent melting even when a large current is passed through, multiple positive electrode tabs are stacked, and multiple negative electrode tabs are stacked.

[0043] The separator may be made of a material such as PP (polypropylene) or PE (polyethylene). The electrode assembly may have a wound structure or a stacked structure, and the embodiments of the present application are not limited thereto.

[0044] A pole or the like may be installed on the battery cell and connected to a tab to serve as the battery cell's electrical connection. The battery cell may also have a pressure relief part, which is used to release substances (e.g., gas, liquid, particulate matter, etc.) inside the battery cell to reduce the internal pressure of the battery cell when the internal pressure of the battery cell becomes too high (e.g., thermal runaway), thereby preventing the battery cell from being rapidly pressurized and causing dangerous accidents such as deflagration. For example, the pressure relief part may be an explosion-proof valve, explosion-proof sheet, etc.

[0045] For example, as shown in Figures 1 and 2, some power consumption devices 2000 are powered by a battery 1000, and the battery 1000 includes a housing 200 and a battery cell 11, and the housing 200 includes an upper case 210 and a lower case 220, and the battery cell 11 is disposed within the housing 200. As shown in Figures 3 and 4, the battery cell 11 has an electrical connection portion and a pressure relief portion 113, and the electrical connection portion includes a first electrical connection portion 111 and a second electrical connection portion 112, where the pressure relief portion 113 and the electrical connection portion may be located on the same side of the battery cell 11. As shown in Figure 3, the pressure relief portion 113 is located between the first electrical connection portion 111 and the second electrical connection portion 112, and as shown in Figure 4, the pressure relief portion 113 is located on the same side of the first electrical connection portion 111 and the second electrical connection portion 112.

[0046] In order to ensure the performance of the battery 1000, a sampling assembly is generally further provided in the housing 200. The sampling assembly is connected to the electrical connections of the battery cells 11 and is used to collect signals from the battery cells 11, such as voltage, temperature, etc. The sampling assembly includes an information collection member 20, and the cost of the information collection member 20 is relatively high. In the prior art, one information collection member 20 needs to be installed for each row of battery cells 11 in the battery 1000. A large-capacity battery 1000 generally has multiple rows of battery cells 11, and the demand for information collection members 20 is relatively large, which makes the manufacturing cost of the battery 1000 relatively high.

[0047] Therefore, the present application proposes that the battery 1000 includes at least one battery pack 100, each battery pack 100 including a plurality of battery strings 10 and an information collection member 20, each battery string 10 including a plurality of battery cells 11 arranged along a first direction F1, in each battery string 10, the electrical connection portions of two adjacent battery cells 11 are connected by a first electrical connection member 30, the plurality of battery strings 10 are arranged along a second direction F2, the information collection member 20 is provided on one side of the plurality of battery strings 10 in a third direction F3, the third direction F3 and the second direction F2 are two each perpendicular to the first direction F1, and the information collection member 20 is electrically connected to a plurality of first electrical connection members 30 corresponding to at least two battery strings 10.

[0048] In the battery 1000 having the above-described structure, the multiple battery cells 11 in each battery pack 100 are connected to the information collection member 20 by the first electrical connection member 30, facilitating connection sampling of the multiple battery cells 11 and obtaining information about each battery cell 11, thereby allowing the multiple battery strings 10 in each battery pack 100 to share a single information collection member 20, thereby effectively reducing the number of information collection members 20 in the battery 1000, which serves to reduce the manufacturing cost of the battery 1000 and improve the market competitiveness of the product.

[0049] The battery 1000 disclosed in the embodiments of the present application can be used in power consumption devices 2000 such as, but not limited to, vehicles, ships, or aircraft, and the power supply system of the power consumption device 2000 can be configured using the battery 1000 disclosed in the present application to ensure the safety and reliability of use of the power consumption device 2000.

[0050] For example, the power consumption device 2000 disclosed in the embodiments of the present application may be, but is not limited to, a vehicle, a mobile phone, a tablet, a laptop, a boat, a spacecraft, an electric toy, an electric tool, etc. The vehicle may be a fuel vehicle, a gas vehicle, a new energy vehicle, or a railroad car, the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or a range-extended vehicle, etc. The spacecraft may include an airplane, a rocket, a space shuttle, a spaceship, etc. The electric toy may include a stationary or mobile electric toy, such as a game console, an electric vehicle toy, an electric boat toy, and an electric airplane toy, etc. The electric tool may include a metal cutting power tool, a grinding power tool, an assembly power tool, and a railroad power tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an electric impact drill, a concrete vibrator, and an electric planer, etc.

[0051] A battery 1000 according to an embodiment of the present application will now be described in conjunction with the drawings.

[0052] 5 to 12, Fig. 5 is a schematic diagram of a battery according to some embodiments of the present application, and Figs. 6 to 12 are schematic diagrams of a battery pack 100 according to some embodiments of the present application. As shown in Fig. 5, the battery 1000 includes at least one battery pack 100, each battery pack 100 including a plurality of battery strings 10 and an information collection member 20, each battery string 10 including a plurality of battery cells 11 arranged along a first direction F1, in each battery string 10, the electrical connections of two adjacent battery cells 11 are connected by a first electrical connection member 30, the plurality of battery strings 10 are arranged along a second direction F2, the information collection member 20 is provided on one side of the plurality of battery strings 10 in a third direction F3, the third direction F3 and the second direction F2 are perpendicular to the first direction F1, and the information collection member 20 is electrically connected to a plurality of first electrical connection members 30 corresponding to at least two battery strings 10.

[0053] As shown in FIG. 5, the first direction F1 is the front-to-back direction, the second direction F2 is the left-to-right direction, and the third direction F3 is the up-to-down direction. As shown in FIG. 5, the battery 1000 includes a plurality of battery packs 100, and each battery pack 100 includes a plurality of battery strings 10, where the number of battery strings 10 in each battery pack 100 may be two or may be three or more, and the plurality of battery strings 10 are arranged along the left-to-right direction.

[0054] Each battery string 10 includes a plurality of battery cells 11, which are arranged in a front-to-rear direction. Each battery cell 11 may include a housing, an electrode assembly, and an electrolyte. The housing is used to accommodate the electrode assembly and the electrolyte. The electrode assembly consists of a positive electrode plate, a negative electrode plate, and a separator. Electrical connections are provided on the housing. The electrical connections may be connected to tabs of the electrode assembly by an adapter sheet. Each battery cell 11 includes two electrical connections of opposite polarities, which connect the positive electrode tab and the negative electrode tab correspondingly.

[0055] Here, the electrical connection portions of two adjacent battery cells 11 are connected by a first electrical connection member 30, thereby connecting a plurality of battery cells 11 in a row and realizing a series or parallel connection of the electrical connection portions of the battery cells 11. As can be understood, the first electrical connection member 30 here may be an electrical connection portion of the same polarity connecting two battery cells 11, or an electrical connection portion of opposite polarity connecting two battery cells 11. The first electrical connection member 30 may have a flat or approximately flat plate shape, and the material of the first electrical connection member 30 may include aluminum, copper, etc.

[0056] Of course, the battery 1000 may include one battery pack 100, which includes multiple battery strings 10. The number of battery strings 10 in the battery pack 100 may be two, or may be three or more, and the multiple battery strings 10 are arranged along the left-right direction.

[0057] As shown in Figures 5 to 12, one battery pack 100 is provided with one information collection component 20, which is installed above a plurality of battery strings 10. The information collection component 20 is electrically connected to a plurality of first electrical connection components 30 on the battery string 10, and is further connected to the electrical connection portions of the battery cells 11 via the first electrical connection components 30, thereby enabling the collection of information on the plurality of battery cells 11 on the battery string 10, such as temperature or voltage, and a connector 22 may be connected to the end of the information collection component 20, which allows the signals collected by the information collection component 20 to be output via the connector 22, making it easier to monitor the status of the battery cells 11.

[0058] As shown in Figure 5, by installing one information collection component 20 for multiple battery columns 10 in one battery pack 100, one information collection component 20 can correspond to two or more battery columns 10, that is, multiple battery columns 10 can share one information collection component 20, which effectively reduces the number of information collection components 20 in the battery 1000 compared to one battery column 10 corresponding to one information collection component 20, reduces the cost of the information collection component 20, and further reduces the manufacturing cost of the battery 1000.

[0059] In the above embodiment, the multiple battery cells 11 in each battery pack 100 are connected to the information collection member 20 by the first electrical connection member 30, which facilitates connection sampling of the multiple battery cells 11 and obtains information about each battery cell 11, thereby allowing the multiple battery strings 10 in each battery pack 100 to share one information collection member 20, which effectively reduces the number of information collection members 20 in the battery 1000, thereby reducing the manufacturing cost of the battery 1000 and improving the market competitiveness of the product.

[0060] As shown in FIGS. 5-12, in some embodiments, in each battery pack 100, the information collection member 20 corresponds to the center position of the plurality of battery strings 10 in the second direction F2.

[0061] As shown in Figures 5 and 6, the multiple battery strings 10 of one battery pack 100 are arranged along the left-right direction, and in the left-right direction, the information collection member 20 is located in the center of the multiple battery strings 10, where the center may be in the middle of the multiple battery strings 10 or may be a position close to the center of the multiple battery strings 10. As shown in Figure 6, the battery pack 100 includes two battery strings 10, and the information collection member 20 may be located above the two battery strings 10, with a part of the information collection member 20 corresponding to one battery string 10 and another part of the information collection member 20 corresponding to the other battery string 10, and the information collection member 20 may be located above one battery string 10 and adjacent to the other battery string 10.

[0062] By adopting the above-mentioned arrangement structure, it is possible to easily connect the information collection member 20 to multiple first electrical connection members 30, and the information collection member 20 is arranged in the center, eliminating the need to perform bending processes on the information collection member 20, thereby reducing the length dimension of the information collection member 20 as much as possible and reducing the manufacturing cost of the information collection member 20.

[0063] As shown in FIGS. 6-12, in some embodiments, information collection member 20 extends along a first direction F1.

[0064] As shown in Figures 6 to 12, the information collection member 20 extends along the front-to-rear direction, and the multiple battery cells 11 are arranged along the front-to-rear direction, so that the extension direction of the information collection member 20 is the same as the arrangement direction of the battery cells 11, which further facilitates cooperation between the information collection member 20 and the first electrical connection member 30 on the multiple battery cells 11 and improves connection convenience. At the same time, the information collection member 20 may be positioned in the center of the multiple battery rows 10, so there is no need to perform bending processes on the information collection member 20, and the length dimension of the information collection member 20 can be reduced as much as possible, and the length of the information collection member 20 may be approximately the same as the total thickness of the multiple battery cells 11, thereby reducing the manufacturing cost of the information collection member 20.

[0065] In the above technical proposal, by adopting the above-mentioned arrangement structure, it is possible to facilitate the connection between the information collection member 20 and multiple first electrical connection members 30, improve the convenience of the connection, and at the same time reduce the length dimension of the information collection member 20 as much as possible, thereby reducing the manufacturing cost of the information collection member 20.

[0066] As shown in Figures 3-4 and 6-12, in some embodiments, the electrical connection portion includes a first electrical connection portion 111 and a second electrical connection portion 112, where the first electrical connection portion 111 and the second electrical connection portion 112 have opposite polarities and the first electrical connection portion 111 and the second electrical connection portion 112 are located on the same side of the battery cell 11.

[0067] As shown in Figures 6 to 12, the battery cell 11 includes a first electrical connection portion 111 and a second electrical connection portion 112, and these two connection portions have opposite polarities, i.e., one is a positive electrode and the other is a negative electrode. At the same time, the first electrical connection portion 111 and the second electrical connection portion 112 are located on the same side of the battery cell 11, thereby facilitating the first electrical connection member 30 to connect two connection portions of two adjacent battery cells 11 with different polarities. The first electrical connection member 30 may be located on one side of the battery cell 11 where the two electrical connection portions are located, and the information collection member 20 may be located on the same side, further improving the convenience of connection.

[0068] Here, in the following examples, the first electrical connection portion 111 is described as a positive electrode connection portion, and the second electrical connection portion 112 is described as a negative electrode connection portion.

[0069] As shown in Figures 6-8, in some embodiments, in each battery string 10, the first electrical connection portion 111 of one battery cell 11 and the second electrical connection portion 112 of one adjacent battery cell 11 are connected by a first electrical connection member 30.

[0070] As shown in Figures 6 to 8, in each battery string 10, the first electrical connection portion 111 of one battery cell 11 and the second electrical connection portion 112 of the adjacent battery cell 11 are connected by a first electrical connection member 30, realizing a series connection of each battery cell 11 in the battery string; that is, one first electrical connection member 30 connects two battery cells 11, thereby realizing current transmission and simultaneously accumulating the voltage within the battery string 10 to reach the required output voltage.

[0071] As shown in FIG. 6 , in some embodiments, in each battery string 10, the first electrical connection portion 111 of one battery cell 11 corresponds to the position of the second electrical connection portion 112 of an adjacent battery cell 11, and the two electrical connection portions are connected by a first electrical connection member 30, which extends along a first direction F1.

[0072] As shown in FIG. 6 , in each battery string 10, the multiple battery cells 11 are arranged in the front-to-rear direction. The first electrical connection 111 of one battery cell 11 corresponds to the position of the second electrical connection 112 of the adjacent battery cell 11. Taking the front battery cell 11 as an example, its first electrical connection 111 is located to the left of the second electrical connection 112, and its rear side is the second electrical connection 112 of the other battery cell 11. Thus, the front first electrical connection 111 and the rear second electrical connection 112 are connected by a first electrical connection member 30, enabling current transmission between the battery cells 11. The first electrical connection member 30 extends in the front-to-rear direction, facilitating cooperation between the first electrical connection member 30 and the two connection members. This shortens the length of the first electrical connection member 30 and reduces manufacturing costs, while also ensuring to a certain extent stable current transmission and voltage transmission between the battery cells 11 in the battery string 10.

[0073] Here, the first electrical connection member 30 is connected to the information collection member 20, and the extension directions of the first electrical connection member 30 and the information collection member 20 may be the same, thereby reducing interference between the first electrical connection member 30 and the information collection member 20 and improving the convenience and reliability of the connection. In addition, the connection between the first electrical connection member 30 and the information collection member 20 may be a direct connection or an indirect connection, for example, connected by a conductive member 50, and the first electrical connection member 30 may extend a support leg toward the information collection member 20, and the support leg is connected to the information collection member 20, that is, the first electrical connection member 30 forms a T-shape, thereby shortening the distance between the first electrical connection member 30 and the information collection member 20 and facilitating the connection between the two.

[0074] As shown in FIG. 6, in some specific examples, each battery row 10 has two rows of first electrical connection members 30, where the first electrical connection members 30 in the first row are spaced apart along a first direction and the first electrical connection members 30 in this row all form a line shape, and the first electrical connection members 30 in the second row are spaced apart along the first direction and the first electrical connection members 30 in this row all form a T shape, and the second row is located on one side away from the information collection members 20 in the first row.

[0075] In some optional examples, the first electrical connection members 30 in the first row may be connected to the information collection members 20 using the same conductive member 50, and the first electrical connection members 30 in the second row may be connected to the information collection members 20 using the same conductive member 50, that is, the conductive members 50 connecting the first electrical connection members 30 in the first row and the information collection members 20 may adopt structural members of uniform dimensions, and the conductive members 50 connecting the first electrical connection members 30 in the second row and the information collection members 20 may adopt structural members of uniform dimensions, which can reduce manufacturing costs and at the same time facilitate the connection between the conductive members 50 and each first electrical connection member 30 and improve assembly efficiency.

[0076] As shown in Figures 7 and 8, in some embodiments, in each battery string 10, the first electrical connection portion 111 of one battery cell 11 and the second electrical connection portion 112 of the adjacent battery cell 11 are arranged with a shifted position in the first direction F1, and the two electrical connection portions are connected by a first electrical connection member 30, and the extension direction of the first electrical connection member 30 is inclined with respect to the first direction F1 and the second direction F2.

[0077] As shown in Figures 7 and 8, in each battery row 10, multiple battery cells 11 are arranged along the front-to-rear direction, the first electrical connection portion 111 of each battery cell 11 is located on the same side (the same side in the left-to-right direction) as its second electrical connection portion 112, and the arrangement method of the two electrical connection portions of each battery cell 11 is the same, so that the positions of the electrical connection portions of the same polarity of two adjacent battery cells 11 are opposite each other, and the first electrical connection portion 111 of one battery cell 11 and the second electrical connection portion 112 of the adjacent battery cell 11 are arranged with a shift in position.

[0078] Taking the first battery cell 11 on the front side in FIG. 7 as an example, its first electrical connection portion 111 is located on the left side of the second electrical connection portion 112, and behind the first electrical connection portion 111 is the first electrical connection portion 111 of another battery cell 11, and the second electrical connection portion 112 of the other battery cell 11 is located on the right side of this first electrical connection portion 111. The front first electrical connection portion 111 and the rear second electrical connection portion 112 are connected by a first electrical connection member 30, and the first electrical connection member 30 extends from front to rear, gradually inclining to the right. This allows current to be transmitted between the two battery cells 11. The first electrical connection member 30 may be formed in a straight line shape, which simplifies the structure of the first electrical connection member 30 and makes it easier to manufacture and form the first electrical connection member 30. In this battery string 10, the extension direction of each first electrical connection member 30 is the same, and multiple first electrical connection members 30 are arranged at intervals along the front-to-rear direction, which reduces the probability that the first electrical connection member 30 will interfere with other components and makes it easier to connect the first electrical connection member 30 to the electrical connection part.

[0079] In some optional examples, the first electrical connection members 30 may be connected to the information collection members 20 using the same conductive members 50, i.e., the conductive members 50 may use structural members of uniform dimensions, which can reduce manufacturing costs and at the same time facilitate connection between the conductive members 50 and each first electrical connection member 30 and improve assembly efficiency. Optionally, the extension direction of each conductive member 50 is inclined with respect to the first direction F1 and the second direction F2. Optionally, the extension direction of the conductive members 50 and the extension direction of the first electrical connection members 30 are mutually perpendicular.

[0080] As shown in Figures 9-11, in some embodiments, in each battery string 10, at least two adjacent battery cells 11 form a battery combination 103, the positions of the first electrical connection portions 111 of the battery cells 11 in each battery combination 103 correspond to each other, the positions of the second electrical connection portions 112 of the battery cells 11 in each battery combination 103 correspond to each other, and the first electrical connection portion 111 of one battery combination 103 and the second electrical connection portion 112 of one adjacent battery combination 103 are connected by a first electrical connection member 30.

[0081] As shown in Figures 9 to 11, in each battery string 10, two adjacent battery cells 11 form a battery combination 103, and the first electrical connections 111 of two adjacent battery cells 11 are connected to the second electrical connections 112 of the other two adjacent battery cells 11 by first electrical connection members 30. That is, one first electrical connection member 30 connects the corresponding electrical connections between four adjacent battery cells 11, thereby realizing current transmission and enabling parallel connection of two adjacent battery cells 11 and overlapping the capacities of the battery cells 11. At the same time, two adjacent sets of battery cells 11 are connected in series, and the voltages within the battery string 10 are overlapped to achieve the required output voltage.

[0082] Of course, three adjacent battery cells 11 may form one battery combination 103 , or more battery cells 11 may form one battery combination 103 .

[0083] As shown in FIG. 9 , in some embodiments, in each battery string 10, the first electrical connection portion 111 of one battery combination 103 corresponds to the position of the second electrical connection portion 112 of an adjacent battery combination 103 and is connected by a first electrical connection member 30, which extends along a first direction F1.

[0084] As shown in FIG. 9 , in each battery string 10, two adjacent battery cells 11 form one battery combination 103. The positions of the first electrical connection portions 111 of the two battery cells 11 in each battery combination 103 correspond to each other. The first electrical connection portion 111 of each battery combination 103 corresponds to the position of the second electrical connection portion 112 of the adjacent battery combination 103 and is connected by the first electrical connection member 30. Taking the front four battery cells 11 as an example, the front two battery cells 11 form the first battery combination 103, and the first electrical connection portion 111 is located to the left of the second electrical connection portion 112. The rear two battery cells 11 form the second battery combination 103. , and the first electrical connection portion 111 is located to the right of the second electrical connection portion 112, so that the two second electrical connection portions 112 of the first battery combination 103 and the two first electrical connection portions 111 of the second battery combination 103 are connected by the first electrical connection member 30, thereby realizing current transmission between the battery cells 11. The first electrical connection member 30 extends in the front-to-rear direction, facilitating cooperation between the first electrical connection member 30 and the four electrical connection portions, thereby reducing the number of first electrical connection members 30 and reducing manufacturing costs, while at the same time ensuring to a certain extent stable current transmission and voltage transmission between the battery cells 11 in the battery string 10.

[0085] Here, the first electrical connection member 30 is connected to the information collection member 20, and the extension directions of the first electrical connection member 30 and the information collection member 20 may be the same, thereby reducing interference between the first electrical connection member 30 and the information collection member 20 and improving the convenience and reliability of the connection. In addition, the connection between the first electrical connection member 30 and the information collection member 20 may be a direct connection or an indirect connection, for example, connected by a conductive member 50, and the first electrical connection member 30 may extend a support leg toward the information collection member 20, and the support leg is connected to the information collection member 20, that is, the first electrical connection member 30 forms a T-shape, thereby shortening the distance between the first electrical connection member 30 and the information collection member 20 and facilitating the connection between the two.

[0086] As shown in FIG. 9 , in some specific examples, each battery row 10 has two rows of first electrical connection members 30, where the first electrical connection members 30 in the first row are spaced apart along a first direction and the first electrical connection members 30 in this row all form a line shape, and the first electrical connection members 30 in the second row are spaced apart along the first direction and the first electrical connection members 30 in this row all form a T shape, and the second row is located on one side away from the information collection members 20 in the first row. In some optional examples, the first electrical connection members 30 in the first row may be connected to the information collection members 20 using the same conductive member 50, and the first electrical connection members 30 in the second row may be connected to the information collection members 20 using the same conductive member 50, that is, the conductive members 50 connecting the first electrical connection members 30 in the first row and the information collection members 20 may adopt structural members of uniform dimensions, and the conductive members 50 connecting the first electrical connection members 30 in the second row and the information collection members 20 may adopt structural members of uniform dimensions, which can reduce manufacturing costs and at the same time facilitate the connection between the conductive members 50 and each first electrical connection member 30 and improve assembly efficiency.

[0087] As shown in Figures 10 and 11, in some examples, in each battery string 10, the first electrical connection portion 111 of one battery combination 103 and the second electrical connection portion 112 of an adjacent battery combination 103 are arranged in a staggered manner in the first direction F1 and are connected by a first electrical connection member 30, and the first electrical connection member 30 has a bent shape.

[0088] As shown in Figures 10 and 11, two adjacent battery cells 11 form one battery combination 103, the positions of the first electrical connection portions 111 of the two battery cells 11 in each battery combination 103 correspond to each other, the positions of the second electrical connection portions 112 of the two battery cells 11 in each battery combination 103 correspond to each other, the arrangement directions in the first direction F1 of the two electrical connection portions of each battery combination 103 are the same, and the first electrical connection portions 111 are located on the same side of their second electrical connection portions 112, so that the first electrical connection portion 111 of one battery combination 103 is positioned offset from the second electrical connection portion 112 of an adjacent battery combination 103.

[0089] As shown in Figures 10 and 11, in each battery row 10, multiple battery cells 11 are arranged along the front-to-rear direction, the first electrical connection portion 111 of each battery cell 11 is located on the same side (the same side in the left-to-right direction) as its second electrical connection portion 112, and the arrangement method of the two electrical connection portions of each battery cell 11 is the same, so that the positions of the electrical connection portions of the same polarity of two adjacent battery cells 11 are opposite each other, and the first electrical connection portion 111 of one battery cell 11 and the second electrical connection portion 112 of the adjacent battery cell 11 are arranged with a shift in position.

[0090] Taking the first battery cell 11 on the front side in Figure 10 as an example, its first electrical connection portion 111 is located to the right of the second electrical connection portion 112, and behind the first electrical connection portion 111 is the first electrical connection portion 111 of another battery cell 11, and the second electrical connection portion 112 of the other battery cell 11 is located to the left of this first electrical connection portion 111, and the two second electrical connection portions 112 on the front side and the two first electrical connection portions 111 on the rear side are connected by a first electrical connection member 30, thereby realizing current transmission between the four battery cells 11.

[0091] Here, the first electrical connection member 30 has a bent shape, for example a Z-shape, which can facilitate the connection between the first electrical connection member 30 and the electrical connection portions of the four battery cells 11, thereby realizing current transmission and series or parallel connection of the battery cells.

[0092] In one battery string 10, the extension direction of each first electrical connection member 30 is the same, and multiple first electrical connection members 30 are arranged at intervals along the front-to-rear direction, thereby reducing the probability that the first electrical connection members 30 will interfere with other members and facilitating connection between the first electrical connection members 30 and the electrical connection portion.

[0093] As shown in FIGS. 10 and 11 , in some embodiments, the first electrical connection member 30 includes a first connection segment 31, a second connection segment 32, and a third connection segment 33, where the first connection segment 31 connects the first electrical connection portions 111 of two adjacent battery cells 11, and the third connection segment 33 connects the second electrical connection portions 112 of the other two adjacent battery cells 11, and the first connection segment 31 and the third connection segment 33 extend along a first direction F1, and the second connection segment 32 is connected between the first connection segment 31 and the third connection segment 33, and the extension direction of the second connection segment 32 is inclined with respect to the first direction F1 and the second direction F2, so that the first electrical connection member 30 can connect the first electrical connection portions 111 of the two adjacent battery cells 11 and the second electrical connection portions 112 of the other two adjacent battery cells 11, and at the same time, the size of the first electrical connection member 30 can be reduced to a certain extent, and the arrangement of the first electrical connection member 30 can be optimized to meet different design requirements.

[0094] In some optional examples, the first connection segment 31 or the third connection segment 33 of the first electrical connection member 30 may be connected to the information collection member 20 using the same conductive member 50, i.e., the conductive member 50 may use a structural member of uniform dimensions, which can reduce manufacturing costs and at the same time facilitate the connection between the conductive member 50 and each first electrical connection member 30 and improve assembly efficiency.

[0095] As shown in Figures 6-7 and 9-10, in some embodiments, in two adjacent battery strings 10, the first electrical connection portion 111 of the battery cell 11 located at one end of the battery string 10 is connected to the second electrical connection portion 112 of the battery cell 11 at one end of the adjacent battery string 10 by the second electrical connection member 40.

[0096] The second connecting member 40 may be flat or approximately flat, the material of the second connecting member 40 may include aluminum, copper, etc., and the second connecting member 40 may be straight or U-shaped.

[0097] By installing the second electrical connection member 40, electrical connection between the battery string 10 and the adjacent battery string 10 can be realized, thereby connecting multiple battery strings 10 together to provide a larger electrical energy storage capacity or improve output power.

[0098] In some examples, the arrangement direction of the first electrical connection portion 111 and the second electrical connection portion 112 of each battery cell 11 is the same. As shown in FIGS. 6-7 and 9-10, a battery 1000 has two battery columns 10, which are arranged in the left-right direction. The arrangement direction of the electrical connection portion of the battery cell 11 in the left battery column 10 is the same as the arrangement direction of the electrical connection portion of the battery cell 11 in the right battery column. That is, the first electrical connection portion 111 is located on the same side of the second electrical connection portion 112. For example, in the battery cell 11 shown at the front end of FIG. 6, the first electrical connection portion 111 of the battery cell 11 in the left battery column 10 is located to the left of the second electrical connection portion 112. In this arrangement, the first electrical connection portion 111 of the battery cell 11 in the right battery string 10 is similarly located to the left of the second electrical connection portion 112, so that the second electrical connection portion 112 of the battery cell 11 in the left battery string 10 is adjacent to the first electrical connection portion 111 of the battery cell 11 in the right battery string 10. The second electrical connection member 40 extends in the left-right direction, i.e., can connect two electrical connection portions, facilitating connection. This allows electrical connection between the battery string 10 and the adjacent battery string 10, and thus allows multiple battery strings 10 to be connected together to provide greater electrical energy storage capacity or improve output power.

[0099] As shown in FIG. 9 , in some examples, the second electrical connection member 40 can connect the first electrical connection portions 111 of two adjacent battery cells 11 and the second electrical connection portions 112 of two adjacent battery cells 11, thereby realizing electrical connection of two adjacent battery strings 10. At the same time, in each battery string 10, the first electrical connection portions 111 of two adjacent battery cells 11 and the second electrical connection portions 112 of the other two adjacent battery cells 11 are connected by the first electrical connection member 30, so that each electrical connection member connects four battery cells 11 simultaneously.

[0100] As shown in Figures 7 and 10, in some examples, a battery cell 11 has a pressure relief portion 113, which may be located on the same side of the two electrical connection portions of the battery cell 11. The electrical connection portions of two adjacent battery strings 10 may be arranged in the same direction, with the partial pressure relief portion 113 located between the electrical connection portions of the two battery strings 10. This allows the second electrical connection member 40 to be designed in a bent shape, and the second electrical connection member 40 and the pressure relief portion 113 are arranged with a staggered position. This allows the second electrical connection member 40 to provide a shielding effect to the pressure relief portion 113, preventing it from affecting the discharge of gas during thermal runaway.

[0101] As shown in FIGS. 8 and 11, in some embodiments, the arrangement directions of the first electrical connection portions 111 and the second electrical connection portions 112 of the battery cells 11 in two adjacent battery strings 10 are opposite to each other.

[0102] As shown in FIGS. 8 and 11 , the battery 1000 has two battery strings 10, which are arranged in the left-right direction. The electrical connection portions of the battery cells 11 in the left-side battery string 10 are arranged in opposite directions to the electrical connection portions of the battery cells 11 in the right-side battery string. The first electrical connection portion 111 of the battery cells 11 in the left-side battery string 10 is located to the left of the second electrical connection portion 112, and the first electrical connection portion 111 of the battery cells 11 in the right-side battery string 10 is located to the right of the second electrical connection portion 112. The second electrical connection portion 112 of the battery cell 11 at the end of the left-side battery string 10 and the first electrical connection portion 111 of the battery cell 11 at the middle end of the right-side battery string 10 are connected by a second electrical connection member 40, thereby achieving electrical connection between the two adjacent battery strings 10.

[0103] As shown in FIGS. 8 and 11 , in some embodiments, the battery cell 11 has a pressure relief portion 113, which may be located on the same side of the two electrical connection portions of the battery cell 11, and all of the pressure relief portions 113 may be located between the electrical connection portions of the two battery strings 10. In this case, the second electrical connection member 40 may be designed in a bent shape, and the second electrical connection member 40 and the pressure relief portion 113 may be positioned offset from each other, so that the second electrical connection member 40 provides a shielding effect to the pressure relief portion 113 and prevents it from affecting the discharge of gas during thermal runaway.

[0104] As shown in FIGS. 8 and 11 , the second electrical connection member 40 includes a fourth connection segment 41, a fifth connection segment 42, and a sixth connection segment 43. The sixth connection segment 43 is connected to the first electrical connection portion 111 of one or two battery cells 11. The fourth connection segment 41 is connected to the second electrical connection portion 112 of another or two other battery cells 11. The sixth connection segment 43 and the fourth connection segment 41 extend along a first direction F1. The fifth connection segment 42 is connected between the sixth connection segment 43 and the fourth connection segment 41. The fifth connection segment 42 may also extend along a second direction F2. This allows the second electrical connection member 40 to connect two battery cells 11 in two adjacent battery strings 10. At the same time, the size of the second electrical connection member 40 can be reduced to a certain extent, and the arrangement of the second electrical connection member 40 can be optimized to meet different design requirements.

[0105] As shown in Figures 6 and 9, in some embodiments, the battery cell 11 has a pressure relief portion 113, the pressure relief portion 113 and the electrical connection portion are located on the same side of the battery cell 11, and the pressure relief portion 113 is located between the first electrical connection portion 111 and the second electrical connection portion 112, and the projection of the pressure relief portion 113 on the plane in which the first electrical connection member 30 is located is located outside the first electrical connection member 30.

[0106] The pressure relief portion 113 is a member for relieving the pressure of the battery when the internal pressure of the battery cell 11 is too high, and the pressure relief portion 113 may be an explosion-proof valve or an explosion-proof sheet.

[0107] As shown in Figures 6 and 9, the pressure release part 113 and the two electrical connection parts are both located above the battery cell 11, and the pressure release part 113 is located between the first electrical connection part 111 and the second electrical connection part 112. In the vertical direction, the pressure release part 113 is offset from the first electrical connection member 30. This allows the high-pressure gas to be discharged through the pressure release part 113 when thermal runaway occurs in the battery cell 11, preventing the first electrical connection member 30 from blocking the pressure release at the pressure release part 113 and affecting the discharge of the high-pressure gas.

[0108] It should be noted that the information collection member 20 generally adopts a flexible material and has relatively low structural strength. Even if the information collection member 20 is located above the pressure relief portion 113 or covers some of the pressure relief valves 113, when thermal runaway occurs in the battery cell 11, the high-pressure gas can be discharged through the pressure relief portion 113, and at the same time, the high-pressure gas can break through the information collection member 20, thereby ensuring to a certain extent the smooth discharge of the high-pressure gas.

[0109] In the above technical solution, the first electrical connection member 30 and the pressure relief part 113 are arranged in a positionally offset manner, which can improve the reliability and stability of the battery cell 10 and avoid safety risks to a certain extent.

[0110] As shown in Figures 7-8 and 10-11, in some embodiments, the battery cell 11 has a pressure relief portion 113, the pressure relief portion 113 and the electrical connection portion are located on the same side of the battery cell 11, and the pressure relief portion 113 is located on the same side in the second direction F2 as the first electrical connection portion 111 and the second electrical connection portion 112, and the projection of the pressure relief portion 113 on the plane on which the first electrical connection member 30 is located is located outside the first electrical connection member 30.

[0111] As shown in Figures 7-8 and 10-11, the pressure release section 113 and the two electrical connection sections are both located on the upper side of the battery cell 11, and the pressure release section 113 is located on the same side (the right side as shown in Figure 7) as the first electrical connection section 111 and the second electrical connection section 112. In the vertical direction, the pressure release section 113 is positioned offset from the first electrical connection member 30. This allows the high-pressure gas to be discharged through the pressure release section 113, preventing the first electrical connection member 30 from blocking the pressure release at the pressure release section 113 and affecting the discharge of the high-pressure gas.

[0112] It should be noted that the information collection member 20 generally adopts a flexible material and has relatively low structural strength. Even if the information collection member 20 is located above the pressure relief portion 113 or covers some of the pressure relief valves 113, when thermal runaway occurs in the battery cell 11, the high-pressure gas can be discharged through the pressure relief portion 113, and at the same time, the high-pressure gas can break through the information collection member 20, thereby ensuring to a certain extent the smooth discharge of the high-pressure gas.

[0113] In the above technical solution, the first electrical connection member 30 and the pressure relief part 113 are arranged in a positionally offset manner, which can improve the reliability and stability of the battery cell 10 and avoid safety risks to a certain extent.

[0114] In some embodiments, the battery cell 11 has a pressure relief portion 113, and the pressure relief portion 113 and the electrical connection portion are located on different sides of the battery cell 11.

[0115] The battery cell 11 has a first electrical connection portion 111 and a second electrical connection portion 112 on the upper side thereof, and a pressure relief portion 113 on the lower side thereof, whereby the pressure relief portion 113 and the electrical connection portion are located on different sides of the battery cell 11. In this case, the first electrical connection member 30 and the second electrical connection member 40 cooperate with the electrical connection portion without interfering with the pressure relief portion 113, allowing high-pressure gas in the battery cell 11 to be discharged through the pressure relief portion 113, improving the exhaust efficiency of the pressure relief portion 113 and the reliability and stability of the battery cell. Of course, the pressure relief portion 113 may also be located on the left or right side of the battery cell 11, and the electrical connection portion may be located on the upper or lower side of the battery cell 11, with the pressure relief portion 113 and the electrical connection portion located on different sides of the battery cell 11.

[0116] As shown in Figures 6-12, in some embodiments, the multiple battery strings 10 include a first battery string 101 and a second battery string 102, the first battery string 101 includes a plurality of first battery cells, and two adjacent first battery cells are connected by a first electrical connection member 30, the second battery string 102 is located on one side of the first battery string 101 in the second direction F2, the second battery string 102 includes a plurality of second battery cells, and two adjacent second battery cells are connected by a first electrical connection member 30, and one first battery cell and one second battery cell are connected by a second electrical connection member 40, and the information collection member 20 is electrically connected to the multiple first electrical connection members 30 and second electrical connection members 40 corresponding to the first battery string 101 and the second battery string 102.

[0117] As shown in FIGS. 6-12, the first battery string 101 is located on the left side of the second battery string 102. The first battery string 101 includes a plurality of first battery cells, and two adjacent first battery cells are connected by a first electrical connection member 30. The second battery string 102 includes a plurality of second battery cells, and two adjacent second battery cells are connected by a first electrical connection member 30. It can be understood that, as shown in FIGS. 6-8 and 12, it may be two adjacent battery cells that are connected by the first electrical connection member 30. In this case, the second battery string 102 may be connected by a first electrical connection member 30. 9 to 11, the first electrical connection member 30 may connect four adjacent battery cells, and in this case, the second electrical connection member 40 may connect two first battery cells and two second battery cells, thereby connecting the multiple battery cells 11 in the first battery string 101 and the second battery string 102 in parallel and series.

[0118] The plurality of first electrical connection members 30 are connected to the information collection member 20, and the second electrical connection members 40 are connected to the information collection member 20, thereby realizing the collection of information of the plurality of battery cells 11 in the first battery string 101 and the second battery string 102, for example, collecting temperature or voltage, and further facilitating the monitoring of the status of the battery cells 11.

[0119] Of course, the battery pack 10 may further include a third battery row, a fourth battery row, etc., and by adjusting the position of the electrical connection portion and the pressure release portion 113 of the battery cell 11, the distance between the first electrical connection portion 111 and the second electrical connection portion 112 may be adjusted, and one information collection component 20 may be used for multiple battery rows, thereby effectively reducing the number of information collection components 20 in the battery 1000 and reducing manufacturing costs.

[0120] As shown in FIG. 12, in some embodiments, the information collection member 20 and the first electrical connection member 30 are directly connected.

[0121] As shown in FIG. 12, the information collection member 20 is directly connected to the first electrical connection member 30, which reduces the number of parts, lowers manufacturing costs, and at the same time reduces assembly operations and improves assembly efficiency; of course, the second electrical connection member 40 may also be directly connected to the information collection member 20.

[0122] As shown in FIG. 12 , in some embodiments, one of the information collection member 20 and the first electrical connection member 30 has a support leg 21, and the other of the information collection member 20 and the first electrical connection member 30 is connected to the support leg 21.

[0123] As shown in Figure 12, the information collection member 20 has support legs 21, which can extend to the first electrical connection member 30. The connection between the information collection member 20 and the first electrical connection member 30 can be realized by overlapping the support legs 21 with portions of the first electrical connection member 30 and then connecting them to the first electrical connection member 30 via the support legs 21. Installing the support legs 21 not only facilitates the connection between the information collection member 20 and the first electrical connection member 30, but also reduces manufacturing costs without excessively increasing the dimensions of the information collection member 20 or the first electrical connection member 30.

[0124] Of course, the first electrical connection member 30 may have support legs extending toward the information collection member 20, and the information collection member 20 may be connected to the support legs of the first electrical connection member 30, or the support legs 21 of the information collection member 20 may be connected to the support legs of the first electrical connection member 30.

[0125] Of course, in the embodiments shown in Figures 6-11, the information collection member 20 and the first electrical connection member 30 may be directly connected, thereby eliminating the conductive member 50 shown in the figures and reducing manufacturing costs.

[0126] As shown in FIG. 12, in some embodiments, the information collection member 20 and the first electrical connection member 30 are welded together. For example, the information collection member 20 has a support leg 21, which is integrally molded with the information collection member 20 and welded to the first electrical connection member 30. By connecting the two together by welding, a reliable connection between the information collection member 20 and the first electrical connection member 30 can be achieved, and at the same time, electrical signals can be transmitted, which simplifies the connection and improves assembly efficiency.

[0127] Alternatively, the information collection member 20 may be directly connected to the second electrical connection member 40 , for example, the information collection member 20 has a support leg 21 , and the support leg 21 is welded to the second electrical connection member 40 .

[0128] As shown in FIGS. 6-11, in some embodiments, each battery pack 100 further includes a conductive member 50, and the first electrical connection member 30 is connected to the information collection member 20 by the conductive member 50.

[0129] 6-11 , the first electrical connection member 30 and the information collection member 20 are spaced apart and connected by a conductive member 50, one end of which is connected to the first electrical connection member 30 and the other end to the information collection member 20. The conductive member 50 may be a nickel sheet, which is a conductive material that can effectively transmit electric current and has good corrosion resistance. The conductive member 50 may be welded to the first electrical connection member 30 and the information collection member 20, respectively, for easy and reliable connection. The second electrical connection member 40 may also be connected to the information collection member 20 by the conductive member 50.

[0130] In some embodiments, each battery pack 100 further includes a temperature collection module, which can abut against the battery cell 11 to collect the temperature of the battery cell 11 .

[0131] Each battery pack 100 includes one or more temperature collection modules. The temperature collection modules are devices for monitoring and recording the temperatures of the battery cells. The temperature collection modules can monitor and control the temperatures of the battery cells in real time, facilitate the timely detection of abnormal temperature situations, and facilitate the taking of appropriate measures, such as heat dissipation or threshold alarm, to ensure the safety and performance of the battery cells 11.

[0132] Here, the temperature collection module contacts one or more battery cells 11, obtains accurate temperature data, and can timely detect abnormal situations such as overheating.

[0133] In some examples, the temperature collection module is integrated into the information collection member 20 .

[0134] By integrating the temperature collection module into the information collection member 20, the temperature of the battery cell 11 can be easily measured and recorded, and the temperature data can be processed and analyzed together with other parameter data, so that the information collection member 20 not only has the function of collecting parameters of other battery cells, but also has the function of collecting the temperature of the battery cell 11.

[0135] In some embodiments, the temperature collection module is integrated into the first electrical connection member 30 .

[0136] By integrating the temperature collection module into the first electrical connection member 30, the temperature of the battery cells 11 can be easily measured, and the temperature data can be transmitted to a battery management system or other monitoring equipment for real-time monitoring and analysis, thereby realizing real-time understanding of the temperature of the battery cells 11 and real-time response and management to abnormal temperature situations. This allows the first electrical connection member 30 to transmit current and also collect temperature, thereby expanding the functionality of the first electrical connection member 30.

[0137] Also, a temperature collection module may be integrated into the second electrical connection member 40 to extend the functionality of the second electrical connection member 40. Of course, the temperature collection module may be integrated into the conductive member 50.

[0138] In some embodiments, the information collection member 20 is a flexible printed circuit (FPC), which is a flexible printed circuit. A flexible circuit is a circuit board made of a flexible substrate, which is flexible and plastic, and has relatively low rigidity. Therefore, even if the flexible circuit is placed above the pressure relief portion 113, when thermal runaway occurs in the battery cell 11, the high-pressure gas can break through the flexible circuit when it is discharged through the pressure relief portion 113, and can then be discharged to the outside of the battery 1000 through the exhaust passage, allowing the high-pressure gas to be discharged quickly and reducing the risk of gas condensation. Therefore, using a flexible circuit can to some extent avoid situations where the high-pressure gas cannot be discharged, reducing safety risks.

[0139] The power consuming device 2000 according to the embodiment of the second aspect of the present application includes the battery 1000 according to the embodiment of the first aspect of the present application, which is used to provide electrical energy to the power consuming device 2000. Thus, the use of the battery 1000 described above is advantageous in improving the safety and reliability of use of the power consuming device 2000.

[0140] 1, when the battery 1000 is used in a vehicle, the battery 1000 may be installed at the bottom, head, or tail of the vehicle. The battery 1000 may be used to power the vehicle, for example, the battery 1000 may be used as an operating power source for the vehicle. The vehicle may further include a controller and a motor, and the controller is used to control the battery 1000 to power the motor and use it for operating power consumption needs, for example, for starting the vehicle, navigation, and driving.

[0141] A battery 1000 and a vehicle having the same according to one specific embodiment of the present application will be described below with reference to the drawings.

[0142] As shown in Figure 1, the battery 1000 is provided at the bottom of the vehicle, and as shown in Figures 5-6, the battery 1000 includes a plurality of battery packs 100, which are arranged along the left-right direction, and each battery pack 100 includes two battery strings 10 and one information collection member 20, i.e., a first battery string 101 and a second battery string 102, and the first battery string 101 is provided to the left of the second battery string 102.

[0143] The first battery string 101 includes a plurality of first battery cells, each of which has a first electrical connection portion 111 and a second electrical connection portion 112 of different polarities, and a pressure relief portion 113 between the first electrical connection portion 111 and the second electrical connection portion 112, where the first electrical connection portion 111 of one battery cell 11 corresponds to the position of the second electrical connection portion 112 of an adjacent battery cell 11, i.e., the positive and negative poles are arranged alternately, and the two electrical connection portions of the two battery cells 11 of different polarities are connected by a first electrical connection member 30.

[0144] The second battery string 102 includes a plurality of second battery cells, each of which has a first electrical connection portion 111 and a second electrical connection portion 112 of opposite polarities, and a pressure relief portion 113 between the first electrical connection portion 111 and the second electrical connection portion 112, where the first electrical connection portion 111 of one battery cell 11 corresponds to the position of the second electrical connection portion 112 of an adjacent battery cell 11, i.e., the positive and negative poles are arranged alternately, and the two electrical connection portions of the two battery cells 11 of opposite polarities are connected by a first electrical connection member 30, where the arrangement direction of the electrical connection portions of the second battery string 102 and the first battery string 101 is the same.

[0145] The first electrical connection portion 111 of the first battery cell and the second electrical connection portion 112 of the second battery cell are connected by a second electrical connection member 40, thereby realizing electrical connection within each battery pack 100.

[0146] The information collection member 20 is a flexible circuit board, and is arranged above the first battery row 101 and the second battery row 102. In the horizontal direction, the information collection member 20 is located in the center of the entire battery pack 100. The information collection member 20 is connected to the first electrical connection member 30 and the second electrical connection member 40 by the conductive member 50, so that two rows of battery cells 11 within the same battery row 10 share one information collection member 20, and a temperature detection module is integrated into the information collection member 20.

[0147] In the above embodiment, the number of information collection components 20 in the battery 1000 can be effectively reduced, which serves to reduce the manufacturing cost of the battery 1000 and improve the market competitiveness of the product.

[0148] Finally, it should be noted that the above embodiments are merely 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 that modifications may still be made to the technical solutions described in the above embodiments, or equivalent substitutions may be made for some or all of the technical features therein. Such modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and should all be included in the scope of the claims and description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in the embodiments may be combined in any manner. The present application is not limited to the specific embodiments disclosed in the description, but includes all technical solutions included within the scope of the claims. [Explanation of symbols]

[0149] 1000 battery, 2000 power consumption device, 200 housing, 210 upper case, 220 lower case, 100 battery packs, 10 battery string, 101 first battery string, 102 second battery string, 103 battery combination, 11 battery cell, 111 first electrical connection part, 112 second electrical connection part, 113 pressure relief part, 20 information collection member, 21 support leg, 22 connector, 30 first electrical connection member, 31 first connection segment, 32 second connection segment, 33 third connection segment, 40 second electrical connection member, 41 fourth connection segment, 42 fifth connection segment, 43 sixth connection segment, 50 Conductive members.

Claims

1. A battery, comprising at least one battery pack, each said battery pack comprising: a plurality of battery strings, each of which includes a plurality of battery cells arranged along a first direction, wherein electrical connection portions of two adjacent battery cells in each of the battery strings are connected by a first electrical connection member, and the plurality of battery strings are arranged along a second direction; A battery characterized in that it includes an information collection member, the information collection member being provided on one side of a plurality of the battery rows in a third direction, the third direction and the second direction being perpendicular to the first direction two by two, and the information collection member being electrically connected to a plurality of the first electrical connection members corresponding to at least two of the battery rows.

2. The battery according to claim 1 , wherein in each of the battery packs, the information collection member corresponds to a central position in the second direction of a plurality of the battery strings.

3. 3. The battery according to claim 1, wherein the information collection member extends along the first direction.

4. 4. The battery according to claim 1, wherein the electrical connection portion includes a first electrical connection portion and a second electrical connection portion, the first electrical connection portion and the second electrical connection portion have opposite polarities, and the first electrical connection portion and the second electrical connection portion are located on the same side of the battery cell.

5. 5. The battery according to claim 4, wherein in each of the battery strings, the first electrical connection portion of one of the battery cells and the second electrical connection portion of one of the adjacent battery cells are connected by the first electrical connection member.

6. 6. The battery according to claim 5, wherein in each battery string, the first electrical connection portion of one battery cell corresponds to the position of the second electrical connection portion of an adjacent battery cell and is connected by the first electrical connection member, and the first electrical connection member extends along the first direction.

7. 6. The battery according to claim 5, wherein in each of the battery strings, the first electrical connection portion of one of the battery cells and the second electrical connection portion of an adjacent battery cell are arranged with a shift in position in the first direction and are connected by the first electrical connection member, and an extension direction of the first electrical connection member is inclined with respect to the first direction and the second direction.

8. 5. The battery according to claim 4, wherein in each of the battery strings, at least two adjacent battery cells form one battery combination, the positions of the first electrical connection portions of the battery cells in each of the battery combinations correspond to each other, the positions of the second electrical connection portions of the battery cells in each of the battery combinations correspond to each other, and the first electrical connection portion of one of the battery combinations and the second electrical connection portion of one of the adjacent battery combinations are connected by the first electrical connection member.

9. 9. The battery according to claim 8, wherein in each battery string, the first electrical connection portion of one battery combination corresponds to the position of the second electrical connection portion of an adjacent battery combination and is connected by the first electrical connection member, and the first electrical connection member extends along the first direction.

10. 9. The battery according to claim 8, wherein in each of the battery strings, the first electrical connection portion of one of the battery combinations and the second electrical connection portion of an adjacent battery combination are arranged with a shift in position in the first direction and are connected by the first electrical connection member, and the first electrical connection member has a bent shape.

11. 11. The battery according to claim 1, wherein in two adjacent battery strings, the first electrical connection portion of the battery cell located at one end of the battery string is connected to the second electrical connection portion of the battery cell at the other end of the adjacent battery string by a second electrical connection member.

12. 12. The battery according to claim 1, wherein the battery cell has a pressure relief portion, the pressure relief portion and the electrical connection portion are located on the same side of the battery cell, and projections of the pressure relief portion and the first electrical connection member along the third direction do not overlap.

13. 12. The battery according to claim 1, wherein the battery cell has a pressure relief portion, and the pressure relief portion and the electrical connection portion are located on different sides of the battery cell.

14. 14. The battery of claim 1, wherein the plurality of battery strings include a first battery string and a second battery string, the first battery string includes a plurality of first battery cells, and two adjacent first battery cells are connected by a first electrical connection member, the second battery string is located on one side of the first battery string in the second direction and includes a plurality of second battery cells, and two adjacent second battery cells are connected by a first electrical connection member, and one of the first battery cells and one of the second battery cells is connected by a second electrical connection member, and the information collection member is electrically connected to the plurality of first electrical connection members and the second electrical connection members corresponding to the first battery string and the second battery string.

15. 15. The battery according to claim 1, wherein the information collection member and the first electrical connection member are directly connected.

16. The battery of claim 15, wherein one of the information collection member and the first electrical connection member has a support leg, and the other of the information collection member and the first electrical connection member is connected to the support leg.

17. The battery according to claim 15, wherein the information collection member and the first electrical connection member are welded together.

18. 15. The battery of claim 1, wherein each of the battery packs further includes a conductive member, and the first electrical connection member is connected to the information collection member by the conductive member.

19. 19. The battery of claim 1, wherein each of the battery packs further includes a temperature collection module adapted to contact the battery cells and collect temperatures of the battery cells.

20. 20. The battery of claim 19, wherein the temperature collection module is integrated into the information collection member.

21. 20. The battery of claim 19, wherein the temperature collection module is integrated into the first electrical connection member.

22. 22. The battery of claim 1, wherein the information collection member is a flexible circuit board.

23. 23. A power consuming device comprising a battery according to any one of claims 1 to 22.

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