Information acquisition assembly of single battery, battery and power utilization device

Abstract

The invention discloses an information acquisition assembly of a battery monomer, a battery and a power utilization device, the information acquisition assembly of the battery monomer comprises an information sampling structure and a mounting base membrane, the sampling structure is suitable for being connected with the battery monomer to acquire information parameters of the battery monomer, and the mounting base membrane comprises a base membrane material and a thermosetting adhesive layer, the thermosetting adhesive layer and the base film material are overlapped, and the information sampling structure is arranged on the thermosetting adhesive layer. The thermosetting adhesive layer can be formed by curing thermosetting adhesive, and when the information acquisition assembly is assembled, the thermosetting adhesive has viscidity when being heated, so that the information sampling structure is adhered to the base film material through the thermosetting adhesive, the thermosetting adhesive is cured into the thermosetting adhesive layer after being cooled, and foreign matters such as particles are not easy to adhere to the thermosetting adhesive layer, so that the risk that the foreign matters fall off from the thermosetting adhesive layer is reduced, and the service life of the information acquisition assembly is prolonged. Therefore, the reliability of the information acquisition assembly is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to an information acquisition component of a battery cell, a battery, and an electrical device. Background Art

[0002] In the related art, the collection component can be used to collect battery cell parameters. The membrane material of the collection component is usually integrated with a large surface of adhesive backing. The adhesive backing is sticky during its life cycle so that the membrane material can be connected to other components through the adhesive backing. However, when the collection component is manufactured, the adhesive backing is prone to adhere to particles and other foreign matter. When the collection component is used, the foreign matter adhered by the adhesive backing is easy to fall off and fall into the battery box, resulting in the risk of failure of the sampling function of the collection component. Summary of the Invention

[0003] The embodiments of the present application provide an information acquisition component of a battery cell, a battery, and an electrical device, which can reduce the risk of foreign matter falling off the thermosetting adhesive layer and improve the reliability of the information acquisition component.

[0004] In a first aspect, an embodiment of the present application provides an information acquisition component for a battery cell, comprising: an information sampling structure, the sampling structure being suitable for connecting to a battery cell to collect information parameters of the battery cell; an installation base film, the installation base film comprising a base film material and a thermosetting adhesive layer, the thermosetting adhesive layer and the base film material being stacked, and the information sampling structure being arranged on the thermosetting adhesive layer.

[0005] In the above technical solution, the thermosetting adhesive layer connects the base film material and the information sampling structure. When the information acquisition component is assembled, the thermosetting adhesive becomes sticky when heated, so that the information sampling structure is bonded to the base film material through the thermosetting adhesive. The thermosetting adhesive solidifies into a thermosetting adhesive layer after cooling. The thermosetting adhesive layer can form a strong bond between the base film material and the information sampling structure, and the thermosetting adhesive layer has a certain flexibility, which enables the thermosetting adhesive layer to withstand a certain tensile, shear and tearing force, thereby maintaining the firmness of the bond. At the same time, after the thermosetting adhesive is solidified into a thermosetting adhesive layer, the thermosetting adhesive layer is not easy to adhere to foreign matter such as particles, and foreign matter adhered to the thermosetting adhesive will be solidified into one with the thermosetting adhesive to reduce the risk of foreign matter falling off from the thermosetting adhesive layer, which is beneficial to improving the reliability of the information acquisition component and reducing the risk of sampling structure acquisition failure caused by foreign matter falling into the battery.

[0006] In some embodiments, the mounting base film has a through hole, and along the stacking direction of the thermosetting adhesive layer and the base film material, the through hole penetrates the mounting base film.

[0007] In the above technical solution, the mounting base membrane has a through hole, the rigidity of the mounting base membrane at the through hole is weakened, and a certain amount of buffer deformation space is formed. When the volume of the battery cell under the mounting base membrane expands or contracts, the mounting base membrane is subjected to the force of squeezing or pulling by the battery cell. At this time, the mounting base membrane can be deformed at the through hole to absorb the force of the battery cell on the mounting base membrane through the deformation buffer at the through hole, thereby reducing the risk of the mounting base membrane being torn, thereby helping to improve the reliability, durability and service life of the mounting base membrane.

[0008] In some embodiments, there are multiple through holes, and the multiple through holes are respectively located at different positions of the mounting base film.

[0009] In the above technical solution, the mounting base film has multiple through holes located at different positions, so that the mounting base film can buffer and absorb the force exerted by the battery cells on the mounting base film through the corresponding through holes at different positions, thereby reducing the stress inside the mounting base film, thereby helping to reduce the risk of the mounting base film being torn.

[0010] In some embodiments, the through-holes are configured as strip-shaped structures.

[0011] In the above technical solution, the through hole is constructed as a strip structure, and the through hole is easy to process and arrange on the mounting base membrane. When the mounting base membrane is subjected to the force of deformation of the battery cell, the mounting base membrane can be deformed at the through hole to absorb the force of the battery cell on the mounting base membrane through the deformation buffer at the through hole, thereby reducing the risk of the mounting base membrane being torn.

[0012] In some embodiments, the information sampling structure includes: a sampling plate, an electrical connector and an information acquisition terminal. The sampling plate is arranged on the thermosetting adhesive layer. The sampling plate and the electrical connector are located on the same side of the mounting base film. The electrical connector is used to electrically connect two battery cells. The information acquisition terminal is connected between the sampling plate and the electrical connector.

[0013] In the above technical solution, the sampling plate can collect information parameters of the battery cells through the information collection terminal to facilitate monitoring of the battery cell status. The sampling plate and the electrical connector are located on the same side of the base film, allowing the information collection terminal to connect the sampling plate and the electrical connector. The sampling plate is connected to the base film material via a thermosetting adhesive layer. The electrical connector electrically connects the two battery cells. The information collection terminal is connected between the sampling plate and the electrical connector. The interconnected components of the information sampling structure can maintain a relatively stable structure under complex operating conditions such as vibration, and has high reliability.

[0014] In some embodiments, a notch structure is formed on the edge of the mounting base film, and the notch structure corresponds to the edge of the sampling plate.

[0015] In the above technical solution, the notch structure on the mounting base membrane can avoid the edge position of the sampling plate. When the sampling plate shakes when it extends out of the mounting base membrane, the notch structure can reduce the risk of the sampling plate being cut by the mounting base membrane, thereby helping to improve the reliability of the sampling plate and reduce the risk of sampling failure caused by the sampling plate being cut by the mounting base membrane.

[0016] In some embodiments, the information collection terminal includes: a voltage collection terminal, the voltage collection terminal is fixedly connected to the sampling board, and the voltage collection terminal is fixedly connected to the surface of the electrical connector facing the mounting base film.

[0017] In the above technical solution, the fixed connection between the voltage collection terminal and the electrical connector is located between the electrical connector and the thermosetting adhesive layer. After the thermosetting adhesive layer is cured, the thermosetting adhesive layer can fix the voltage collection terminal to reduce the risk of shaking of the voltage collection terminal, thereby helping to improve the reliability and stability of the connection between the voltage collection terminal and the electrical connector. At the same time, after the thermosetting adhesive layer is cured, it can seal the connection between the voltage collection terminal and the electrical connector to form an effect equivalent to gluing. The thermosetting adhesive layer can prevent external air, water and other substances from contacting the connection between the voltage collection terminal and the electrical connector to reduce the risk of rust at the connection between the voltage collection terminal and the electrical connector. In other words, the connection between the voltage collection terminal and the electrical connector does not require a gluing process, which is helpful to simplify the production process of the information collection component and reduce the manufacturing and assembly costs of the information collection component.

[0018] In some embodiments, the voltage collection terminal is fixedly connected to a surface of the sampling plate facing the mounting base film.

[0019] In the above technical solution, the fixed connection between the voltage acquisition terminal and the sampling plate is located between the sampling plate and the thermosetting adhesive layer. After the thermosetting adhesive layer is cured, the thermosetting adhesive layer can fix the voltage acquisition terminal to reduce the risk of shaking of the voltage acquisition terminal, thereby helping to improve the reliability and stability of the connection between the voltage acquisition terminal and the sampling plate. At the same time, after the thermosetting adhesive layer is cured, it can seal the connection between the voltage acquisition terminal and the sampling plate to form an effect equivalent to gluing. The thermosetting adhesive layer can prevent external air, water and other substances from contacting the connection between the voltage acquisition terminal and the sampling plate to reduce the risk of rust at the connection between the voltage acquisition terminal and the sampling plate. In other words, the connection between the voltage acquisition terminal and the sampling plate does not require a gluing process, which is helpful to simplify the production process of the information acquisition component and reduce the manufacturing and assembly costs of the information acquisition component.

[0020] In some embodiments, the voltage collection terminal has a deformation segment, the mounting base film has a first avoidance hole, the first avoidance hole penetrates the mounting base film along the stacking direction of the thermosetting adhesive layer and the base film material, and the first avoidance hole and the deformation segment are correspondingly arranged.

[0021] In the above technical solution, the voltage collection terminal has a deformable segment, and the mounting base film has a first avoidance hole corresponding to the deformable segment, so that the thermosetting adhesive layer on the mounting base film is separated from the deformable segment. The deformable segment of the voltage collection terminal can move relative to the mounting base film. When the voltage collection terminal is subjected to external force, the deformable segment of the voltage collection terminal can extend or shorten to buffer and absorb the external force.

[0022] In some embodiments, the voltage collection terminal further has a first fixing portion and a second fixing portion, the first fixing portion is fixedly connected to the sampling plate, the second fixing portion is fixedly connected to the electrical connector, and the deformation section is connected between the first fixing portion and the second fixing portion.

[0023] In the above technical solution, the first fixing portion is fixedly connected to the sampling plate, the second fixing portion is fixedly connected to the electrical connector, and the deformable section is connected between the first fixing portion and the second fixing portion. When the battery cell expands or contracts and causes relative displacement between the sampling plate and the electrical connector, the distance between the first fixing portion and the second fixing portion also changes accordingly. At this time, the deformable section can generate elastic deformation between the first fixing portion and the second fixing portion to compensate for the change in the distance between the first fixing portion and the second fixing portion. That is, when the distance between the first fixing portion and the second fixing portion decreases, the deformable section is compressed and its length decreases. When the distance between the first fixing portion and the second fixing portion increases, the deformable section is stretched and its length increases, which is beneficial to reducing the force at the fixed connection between the first fixing portion and the sampling plate, reducing the risk of failure of the fixed connection between the voltage collection terminal and the sampling plate, and at the same time, it is also beneficial to reduce the force at the fixed connection between the second fixing portion and the electrical connector, reducing the risk of failure of the fixed connection between the voltage collection terminal and the electrical connector, thereby improving the reliability and stability of the voltage collection terminal.

[0024] In some embodiments, the deformation section includes: a first section, a second section and a third section, the two ends of the second section are respectively connected to the first section and the third section, the first section is connected between the first fixed part and the second section, the third section is connected between the second fixed part and the second section, and at least two of the first section, the second section and the third section are parallel to each other.

[0025] In the above technical solution, the deformation section includes a first section, a second section and a third section connected in sequence, and at least two of the first section, the second section and the third section are parallel to each other. When the sampling plate and the electrical connector undergo relative displacement, the connection between the second section and the first section undergoes elastic deformation, and the connection between the second section and the third section undergoes elastic deformation, so that the deformation section expands and contracts to compensate for the change in the distance between the first fixed part and the second fixed part, so as to reduce the force at the fixed connection between the first fixed part and the sampling plate, and reduce the risk of failure of the fixed connection between the voltage collection terminal and the sampling plate. At the same time, it is also beneficial to reduce the force at the fixed connection between the second fixed part and the electrical connector, and reduce the risk of failure of the fixed connection between the voltage collection terminal and the electrical connector, thereby helping to improve the reliability and stability of the voltage collection terminal.

[0026] In some embodiments, the deformation section includes: a first section, a second section and a third section, the two ends of the second section are respectively connected to the first section and the third section, the first section is connected between the first fixed part and the second section, the third section is connected between the second fixed part and the second section, an angle is formed between the second section and the first section, and / or an angle is formed between the second section and the third section.

[0027] In the above technical solution, the deformation section includes a first section, a second section and a third section connected in sequence, and an angle is formed between the second section and the first section, and / or an angle is formed between the second section and the third section. When the sampling plate and the electrical connector undergo relative displacement, the connection between the second section and the first section undergoes elastic deformation, and the connection between the second section and the third section undergoes elastic deformation, so that the deformation section expands and contracts to compensate for the change in the distance between the first fixed part and the second fixed part, so as to reduce the force at the fixed connection between the first fixed part and the sampling plate, and reduce the risk of failure of the fixed connection between the voltage collection terminal and the sampling plate. At the same time, it is also beneficial to reduce the force at the fixed connection between the second fixed part and the electrical connector, and reduce the risk of failure of the fixed connection between the voltage collection terminal and the electrical connector, thereby helping to improve the reliability and stability of the voltage collection terminal.

[0028] In some embodiments, the information collection terminal includes: a temperature collection terminal, which is fixedly connected to the sampling board and the electrical connector. The temperature collection terminal is used to collect the temperature of the battery cell. A protective layer is provided at the connection between the temperature collection terminal and the sampling board.

[0029] In the above technical solution, a protective layer is provided at the connection between the temperature acquisition terminal and the sampling plate to reduce the risk of rust at the connection between the temperature acquisition terminal and the sampling plate and improve the reliability of the connection between the temperature acquisition terminal and the sampling plate.

[0030] In some embodiments, the temperature collection terminal is snap-connected to the electrical connector.

[0031] In the above technical solution, the temperature acquisition terminal and the electrical connector connected by snap-fit ​​are easy to assemble, thereby reducing the difficulty of assembling the temperature acquisition terminal and improving the assembly efficiency of the temperature acquisition terminal.

[0032] In some embodiments, the temperature collection terminal is formed with a slot, and a portion of the electrical connector is assembled in the slot.

[0033] In the above technical solution, part of the electrical connector is assembled in the card slot formed by the temperature acquisition terminal to improve the stability of the card connection between the temperature acquisition terminal and the electrical connector. The temperature acquisition terminal can also collect the temperature of the battery cell outside the card slot, so as to improve the structure of the temperature acquisition terminal, occupy a small space, and facilitate assembly.

[0034] In some embodiments, the mounting base film has a second avoidance hole, which penetrates the mounting base film along the stacking direction of the thermosetting adhesive layer and the base film material, and is used to avoid the pole of the battery cell.

[0035] In the above technical solution, the mounting base film has a structure for avoiding the poles of the battery cells, so as to facilitate electrical connection between the electrical connector and the poles.

[0036] In some embodiments, the sampling plate is connected to a connection terminal, and the connection terminal is suitable for plugging with an adapter.

[0037] In the above technical solution, the sampling board is connected with connection terminals suitable for plugging with adapters. The sampling board can output information parameters of the battery cells through the connection terminals and the adapters to facilitate communication between the sampling board and the external battery management system.

[0038] In some embodiments, the material of the thermosetting adhesive layer includes an adhesive, a flame retardant, and a curing agent.

[0039] In the above technical solution, the material of the thermosetting adhesive layer includes adhesive, flame retardant and curing agent. The thermosetting adhesive layer can form a strong bond between the base film material and the information sampling structure 1. The cured thermosetting adhesive layer is not easy to adhere to particles and other foreign matter, and is flame retardant, which is beneficial to improving the reliability and safety of the thermosetting adhesive layer.

[0040] In a second aspect, an embodiment of the present application further provides a battery, comprising: a battery cell; an information acquisition component, wherein the information acquisition component is the above-mentioned information acquisition component of the battery cell, and a sampling structure is connected to the battery cell to collect information parameters of the battery cell.

[0041] In a third aspect, an embodiment of the present application further provides an electrical device comprising the above-mentioned battery.

[0042] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0044] Figure 1 is a schematic diagram of an electrical device according to an embodiment of the present application;

[0045] Figure 2 is an exploded view of a battery according to an embodiment of the present application;

[0046] Figure 3 is a schematic diagram of an information collection component and a battery cell according to an embodiment of the present application;

[0047] Figure 4 is a schematic diagram of an installation base film according to an embodiment of the present application;

[0048] Figure 5 is a partial enlarged view of the mounting base film of an embodiment of the present application;

[0049] Figure 6 is a schematic diagram of an information collection component according to an embodiment of the present application;

[0050] Figure 7 It is a partial enlarged view of the information collection component of the embodiment of the present application;

[0051] Figure 8 is another partial enlarged view of the mounting base film according to an embodiment of the present application;

[0052] Figure 9 Schematic diagram of the coordination of the electrical connector, voltage collection terminal, and mounting base film according to an embodiment of the present application;

[0053] Figure 10 This is a schematic diagram of the cooperation between the sampling board and the information collection terminal according to an embodiment of the present application;

[0054] Figure 11 This is a schematic diagram of the cooperation between the mounting base film and the voltage collection terminal in an embodiment of the present application;

[0055] Figure 12 Schematic diagram of the voltage collection terminal and the electrical connector in accordance with an embodiment of the present application;

[0056] Figure 13 This is a schematic diagram of the coordination of the temperature acquisition terminal, electrical connector, thermal pad and battery cell according to an embodiment of the present application.

[0057] Reference numerals:

[0058] Information collection component 10;

[0059] Information sampling structure 1; sampling plate 11; electrical connector 12; information acquisition terminal 13; voltage acquisition terminal 131; deformation segment 1311; first segment 13111; second segment 13112; third segment 13113; first fixing portion 1312; second fixing portion 1313; temperature acquisition terminal 132; slot 1321; thermal pad 1322; connection terminal 14;

[0060] Mounting base film 2; through hole 21; rectangular segment 211; circular segment 212; notch structure 22; first avoidance hole 23; second avoidance hole 24;

[0061] Battery cell 20;

[0062] Battery 100; box 101; first box body 102; second box body 103;

[0063] Electrical device 1000; controller 200; motor 300. DETAILED DESCRIPTION

[0064] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0065] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0066] References to "embodiments" in this application mean 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 appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.

[0067] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0068] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0069] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0070] The term "plurality" used in this application refers to two or more (including two).

[0071] In the embodiments of the present application, the battery cells may be secondary batteries, which are batteries that can be recharged to activate the active materials after discharge and continue to be used. The battery cells may be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc., and the embodiments of the present application are not limited thereto.

[0072] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, in parallel or in hybrid through a busbar.

[0073] In some embodiments, the battery may be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0074] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are housed in the case.

[0075] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0076] In some embodiments, the battery may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.

[0077] The development of battery technology must take into account multiple design factors at the same time, such as energy density, cycle life, discharge capacity, charge and discharge rate and other performance parameters. In addition, the safety performance of the battery also needs to be considered.

[0078] The inventors discovered that in the field of battery technology, a collection component can be used to collect battery cell parameters. The membrane material of the collection component is usually integrated with a large-area adhesive backing, and the adhesive backing is sticky during its life cycle so that the membrane material can be connected to other components through the adhesive backing. However, when the collection component is manufactured, the adhesive backing is prone to adhere to foreign matter such as particles. When the collection component is used, foreign matter adhered by the adhesive backing is easy to fall off and fall into the battery box, resulting in the risk of failure of the sampling function of the collection component.

[0079] In view of this, an embodiment of the present application provides an information acquisition component for a battery cell, including: an information sampling structure and an installation base film, the sampling structure is suitable for connecting with the battery cell to collect information parameters of the battery cell, the installation base film includes a base film material and a thermosetting adhesive layer, the thermosetting adhesive layer and the base film material are stacked, and the information sampling structure is arranged on the thermosetting adhesive layer.

[0080] In such a battery cell information acquisition component, the thermosetting adhesive layer can be formed by curing the thermosetting adhesive. When the information acquisition component is assembled, the thermosetting adhesive has viscosity, so that the information sampling structure is bonded to the base film material through the thermosetting adhesive. The thermosetting adhesive is cured into a thermosetting adhesive layer after cooling. The thermosetting adhesive layer is not easy to adhere to foreign matter such as particles, and foreign matter adhered to the thermosetting adhesive will be cured into one with the thermosetting adhesive to reduce the risk of foreign matter falling off from the thermosetting adhesive layer, which is beneficial to improving the reliability of the information acquisition component and reducing the risk of sampling structure failure caused by foreign matter falling into the battery.

[0081] The technical solutions described in the embodiments of the present application are applicable to batteries and electrical devices using batteries.

[0082] Electrical devices may include vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools, etc. Vehicles may include fuel vehicles, gas vehicles, or new energy vehicles. New energy vehicles may include pure electric vehicles, hybrid vehicles, or extended-range vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0083] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device.

[0084] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application. A battery 100 is provided within the vehicle, and can be located at the bottom, front, or rear of the vehicle. Battery 100 can be used to power the vehicle, for example, as the vehicle's operating power source.

[0085] The vehicle may further include a controller 200 and a motor 300 . The controller 200 is used to control the battery 100 to supply power to the motor 300 , for example, to meet the vehicle's power requirements for starting, navigating, and driving.

[0086] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0087] Please refer to Figure 2 , Figure 2 The exploded view of the battery 100 provided in some embodiments of the present application. The battery 100 includes a battery cell 20, a box 101 and an information acquisition component 10. The box 101 is used to accommodate the battery cell 20 and the information acquisition component 10. Figure 2 Not shown in the figure.

[0088] The housing 101 is a component that houses the battery cells 20 and provides storage space for the battery cells 20. The housing 101 can have various structures. In some embodiments, the housing 101 can include a first body 102 and a second body 103. The first body 102 and the second body 103 overlap to define a storage space for the battery cells 20. The first body 102 and the second body 103 can have various shapes, such as a rectangular parallelepiped or a cylinder. The first body 102 can be a hollow structure with one side open, and the second body 103 can also be a hollow structure with one side open. The open side of the second body 103 overlaps the open side of the first body 102, thereby forming the housing 101 with storage space. Alternatively, the first body 102 can be a hollow structure with one side open, and the second body 103 can be a plate-like structure. The second body 103 overlaps the open side of the first body 102, thereby forming the housing 101 with storage space. The battery cell 20 may include one or more battery cells. As an example, the battery cell 20 may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, and a polygonal battery cell. The polygonal battery cell is, for example, a hexagonal battery cell, etc. There is no special limitation in this application.

[0089] In the battery 100, there can be one or more battery cells 20. If there are multiple battery cells 20, the multiple battery cells 20 can be connected in series, parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. Multiple battery cells 20 can be connected in series, parallel, or in a hybrid connection to form a battery module, which is then connected in series, parallel, or in a hybrid connection to form a whole and housed within the housing 101. Alternatively, all battery cells 20 can be directly connected in series, parallel, or in a hybrid connection, and then the whole battery module is housed within the housing 101.

[0090] Refer to the following Figure 3-Figure 13 The information collection assembly 10 of the battery cell 20 according to the embodiment of the present application is described.

[0091] According to some embodiments of the present application, referring to Figure 3 As shown, the information acquisition component 10 of the battery cell 20 includes: an information sampling structure 1 and a mounting base film 2. The sampling structure is suitable for connecting with the battery cell 20 to collect information parameters of the battery cell 20. The mounting base film 2 includes a base film material and a thermosetting adhesive layer. The thermosetting adhesive layer and the base film material are stacked, and the information sampling structure 1 is arranged on the thermosetting adhesive layer.

[0092] The sampling structure collects information parameters of the battery cell 20, including voltage, temperature, and other parameters. The sampling structure can be electrically connected to the battery cell 20 to collect the voltage parameters of the battery cell 20. The sampling structure can be thermally connected to the battery cell 20 to collect the temperature parameters of the battery cell 20. The sampling structure can collect information parameters of the battery cell 20 in real time to monitor the status of the battery cell 20. The mounting base film 2 includes a base film material and a thermosetting adhesive layer. The base film material can be a PET film (Polyester Film) or a blue film. The thermosetting adhesive layer can be formed by curing a thermosetting adhesive. The thermosetting adhesive can be heated and then sprayed or applied to the surface of the base film material, or the thermosetting adhesive can be covered on the surface of the base film material and then heated to a viscous molten state. The thermosetting adhesive layer formed after the thermosetting adhesive cools and solidifies can bond the information sampling structure 1 to the base film material as a whole. The information collection assembly 10 can be installed above the battery cell 20, with the side of the base film material facing away from the thermosetting adhesive layer facing the battery cell 20.

[0093] In the above technical solution, the thermosetting adhesive layer connects the base film material and the information sampling structure 1. The thermosetting adhesive can be a non-sticky solid at room temperature. When the information acquisition component 10 is assembled, the thermosetting adhesive is heated to 110°C to 130°C, and the thermosetting adhesive becomes molten and sticky, so that the information sampling structure 1 is bonded to the base film material through the thermosetting adhesive. The thermosetting adhesive solidifies into a thermosetting adhesive layer after cooling. The thermosetting adhesive layer can form a strong bond between the base film material and the information sampling structure 1, and the thermosetting adhesive layer has a certain flexibility, which enables the thermosetting adhesive layer to withstand a certain tensile, shear and tearing force, thereby maintaining the firmness of the bond. At the same time, after the thermosetting adhesive is solidified into a thermosetting adhesive layer, the thermosetting adhesive layer is not easy to adhere to foreign matter such as particles, and foreign matter adhered to the thermosetting adhesive will be solidified into the thermosetting adhesive, thereby reducing the risk of foreign matter falling off from the thermosetting adhesive layer, thereby improving the reliability of the information acquisition component 10 and reducing the risk of foreign matter falling into the battery 100 and causing the sampling structure to fail.

[0094] According to some embodiments of the present application, referring to Figure 3-Figure 5 As shown, the mounting base film 2 has a through hole 21 , and along the stacking direction of the thermosetting adhesive layer and the base film material, the through hole 21 passes through the mounting base film 2 .

[0095] The stacking direction of the thermosetting adhesive layer and the base film material can be the thickness direction of the mounting base film 2, that is, Figure 3 In the up and down directions, the through hole 21 can penetrate the mounting base film 2 in the thickness direction of the mounting base film 2, that is, the through hole 21 penetrates the base film material and the thermosetting adhesive layer at the same time, and the shape of the thermosetting adhesive layer follows the shape of the base film material.

[0096] In the above technical solution, the mounting base membrane 2 has a through hole 21. The rigidity of the mounting base membrane 2 at the through hole 21 is weakened, and a certain amount of buffer deformation space is formed. When the volume of the battery cell 20 below the mounting base membrane 2 expands or contracts, the mounting base membrane 2 is subjected to the force of squeezing or pulling by the battery cell 20. At this time, the mounting base membrane 2 can be deformed at the through hole 21 to absorb the force of the battery cell 20 on the mounting base membrane 2 through the deformation buffer at the through hole 21, thereby reducing the risk of the mounting base membrane 2 being torn, thereby helping to improve the reliability, durability and service life of the mounting base membrane 2.

[0097] According to some embodiments of the present application, referring to Figure 4 As shown, there are multiple through holes 21 , and the multiple through holes 21 are respectively located at different positions of the mounting base film 2 .

[0098] Among them, the number of through holes 21 can be multiple, such as 2, 5, 8, 12, etc. The number of through holes 21 can be positively correlated with the projection area of ​​the mounting base film 2 in its thickness direction, that is, the larger the projection area of ​​the mounting base film 2 in its thickness direction, the greater the number of through holes 21. The multiple through holes 21 are respectively located at different positions of the mounting base film 2 to enhance the tear resistance of the mounting base film 2 at different positions. The multiple through holes 21 can be evenly distributed on the mounting base film 2 to reduce the risk of local tearing of the mounting base film 2.

[0099] In the above technical solution, the mounting base film 2 has a plurality of through holes 21 located at different positions, so that the mounting base film 2 can buffer and absorb the force exerted by the battery cell 20 on the mounting base film 2 through the corresponding through holes 21 at different positions, so as to reduce the stress inside the mounting base film 2, thereby helping to reduce the risk of the mounting base film 2 being torn.

[0100] According to some embodiments of the present application, referring to Figure 5 As shown, the through-holes 21 are configured as strip-shaped structures.

[0101] The projection of the through hole 21 along the stacking direction of the thermosetting adhesive layer and the base film material can be a strip shape. The strip-shaped through hole 21 takes up little space, is easy to process on the mounting base film 2, and is convenient for arrangement. The through hole 21 can include a rectangular segment 211, which is a long strip structure. The through hole 21 can also include two circular segments 212, with each end of the rectangular segment 211 connected to a circular segment 212 in the longitudinal direction. The diameter of the circular segment 212 can be greater than the width of the rectangular segment 211. The rectangular segment 211 is easy to process and arrange, and the circular segment 212 can better buffer and absorb the forces exerted by the battery cells 20 on the mounting base film 2 in all directions.

[0102] In the above technical solution, the through hole 21 is constructed as a strip structure. The through hole 21 is easy to process and arrange on the mounting base membrane 2. When the mounting base membrane 2 is subjected to the deformation force of the battery cell 20, the mounting base membrane 2 can be deformed at the through hole 21 to absorb the force of the battery cell 20 on the mounting base membrane 2 through the deformation buffer at the through hole 21, thereby reducing the risk of the mounting base membrane 2 being torn.

[0103] According to some embodiments of the present application, referring to Figure 3 、 Figure 6 and Figure 7 As shown, the information sampling structure 1 includes: a sampling plate 11, an electrical connector 12 and an information acquisition terminal 13. The sampling plate 11 is arranged on the thermosetting adhesive layer. The sampling plate 11 and the electrical connector 12 are located on the same side of the mounting base film 2. The electrical connector 12 is used to electrically connect two battery cells 20. The information acquisition terminal 13 is connected between the sampling plate 11 and the electrical connector 12.

[0104] Among them, the sampling plate 11 is fixedly connected to the thermosetting adhesive layer, the sampling plate 11 and the electrical connector 12 can be located on the side of the mounting base film 2 away from the battery cell 20, the electrical connector 12 can be a conductive part such as an aluminum bar, a copper busbar, etc., the electrical connector 12 can be used to electrically connect two battery cells 20 so that the two battery cells 20 are connected in series or in parallel through the electrical connector 12, the information acquisition terminal 13 is connected between the sampling plate 11 and the electrical connector 12, the information acquisition terminal 13 can collect information parameters of the battery cell 20 through the electrical connector 12 and transmit it to the sampling plate 11, the sampling plate 11 can be an FCC sampling plate, the sampling plate 11 can transmit the information of the battery cell 20 to the control system of the battery 100 to monitor the status of the battery cell 20.

[0105] In the above technical solution, the sampling plate 11 can collect information parameters of the battery cells 20 through the information collection terminal 13 to facilitate monitoring the status of the battery cells 20. The sampling plate 11 and the electrical connector 12 are located on the same side of the mounting base film 2, so that the information collection terminal 13 can connect the sampling plate 11 and the electrical connector 12. The sampling plate 11 is connected to the base film material via a thermosetting adhesive layer. The electrical connector 12 electrically connects the two battery cells 20. The information collection terminal 13 is connected between the sampling plate 11 and the electrical connector 12. The components of the information sampling structure 1 are interconnected, maintaining a relatively stable structure under complex operating conditions such as vibration, and having high reliability.

[0106] According to some embodiments of the present application, referring to Figure 7 and Figure 8 As shown, a notch structure 22 is formed on the edge of the mounting base film 2 , and the notch structure 22 corresponds to the edge of the sampling plate 11 .

[0107] When the information acquisition component 10 is installed or used in a vibrating environment, the edge of the mounting base membrane 2 forms a notch structure 22 to avoid the sampling plate 11, thereby reducing the risk of the sampling plate 11 being cut by the mounting base membrane 2. Specifically, a portion of the sampling plate 11 may extend out of the outside of the mounting base membrane 2. If the edge of the mounting base membrane 2 is not formed with the notch structure 22, when the information acquisition component 10 is installed or used in a vibrating environment, the portion of the sampling plate 11 extending out of the mounting base membrane 2 is prone to shaking, resulting in the risk of the edge of the mounting base membrane 2 cutting the edge of the sampling plate 11. The present application forms a notch structure 22 at the edge of the mounting base membrane 2 so that the mounting base membrane 2 avoids the sampling plate 11 and its corresponding edge. The notch structure 22 can be a semicircular or long strip notch opened at the edge of the mounting base membrane 2 to reduce the risk of the sampling plate 11 being cut at the notch structure 22.

[0108] In the above technical solution, the notch structure 22 on the mounting base membrane 2 can avoid the edge position of the sampling plate 11. When the sampling plate 11 shakes at the position where it extends out of the mounting base membrane 2, the notch structure 22 can reduce the risk of the sampling plate 11 being cut by the mounting base membrane 2, thereby helping to improve the reliability of the sampling plate 11 and reduce the risk of sampling failure caused by the sampling plate 11 being cut by the mounting base membrane 2.

[0109] According to some embodiments of the present application, referring to Figure 7 、 Figure 9 and Figure 10 As shown, the information collection terminal 13 includes: a voltage collection terminal 131 , which is fixedly connected to the sampling plate 11 , and is fixedly connected to the surface of the electrical connector 12 facing the mounting base film 2 .

[0110] Among them, the voltage collection terminal 131 can be electrically connected to the battery cell 20 through the electrical connector 12, so that the voltage collection terminal 131 collects the voltage of the battery cell 20 and transmits it to the sampling board 11 connected thereto. The voltage collection terminal 131 and the surface of the electrical connector 12 facing the mounting base film 2 can be fixedly connected by welding, clamping, etc., that is, at the fixed connection between the voltage collection terminal 131 and the electrical connector 12, the voltage collection terminal 131 is located between the electrical connector 12 and the mounting base film 2. More specifically, the fixed connection between the voltage collection terminal 131 and the electrical connector 12 is located between the electrical connector 12 and the thermosetting adhesive layer. When the information collection component 10 is assembled, the sampling board 11 and the voltage collection terminal 131 can be connected together to the uncured thermosetting adhesive layer. After the thermosetting adhesive layer is cured, the thermosetting adhesive layer can fix and seal the voltage collection terminal 131.

[0111] In the above technical solution, the fixed connection between the voltage collection terminal 131 and the electrical connector 12 is located between the electrical connector 12 and the thermosetting adhesive layer. After the thermosetting adhesive layer is cured, the thermosetting adhesive layer can fix the voltage collection terminal 131 to reduce the risk of shaking of the voltage collection terminal 131, thereby helping to improve the reliability and stability of the connection between the voltage collection terminal 131 and the electrical connector 12. At the same time, after the thermosetting adhesive layer is cured, it can seal the connection between the voltage collection terminal 131 and the electrical connector 12 to form an effect equivalent to gluing. The thermosetting adhesive layer can prevent external air, water and other substances from contacting the connection between the voltage collection terminal 131 and the electrical connector 12 to reduce the risk of rust at the connection between the voltage collection terminal 131 and the electrical connector 12. In other words, the connection between the voltage collection terminal 131 and the electrical connector 12 does not require a gluing process, which is helpful to simplify the production process of the information collection component 10 and reduce the manufacturing and assembly costs of the information collection component 10.

[0112] According to some embodiments of the present application, referring to Figure 7 and Figure 10 As shown, the voltage collection terminal 131 is fixedly connected to the surface of the sampling plate 11 facing the mounting base film 2 .

[0113] Among them, the voltage acquisition terminal 131 and the surface of the sampling plate 11 facing the mounting base membrane 2 can be fixedly connected by welding, clamping, etc., that is, at the fixed connection between the voltage acquisition terminal 131 and the sampling plate 11, the voltage acquisition terminal 131 is located between the sampling plate 11 and the mounting base membrane 2. More specifically, the fixed connection between the voltage acquisition terminal 131 and the sampling plate 11 is located between the sampling plate 11 and the thermosetting adhesive layer. When the information acquisition component 10 is assembled, the sampling plate 11 and the voltage acquisition terminal 131 can be connected together with the uncured thermosetting adhesive layer. After the thermosetting adhesive layer is cured, the thermosetting adhesive layer can fix and seal the voltage acquisition terminal 131.

[0114] In the above technical solution, the fixed connection between the voltage acquisition terminal 131 and the sampling plate 11 is located between the sampling plate 11 and the thermosetting adhesive layer. After the thermosetting adhesive layer is cured, the thermosetting adhesive layer can fix the voltage acquisition terminal 131 to reduce the risk of shaking of the voltage acquisition terminal 131, thereby helping to improve the reliability and stability of the connection between the voltage acquisition terminal 131 and the sampling plate 11. At the same time, after the thermosetting adhesive layer is cured, it can seal the connection between the voltage acquisition terminal 131 and the sampling plate 11 to form an effect equivalent to gluing. The thermosetting adhesive layer can prevent external air, water and other substances from contacting the connection between the voltage acquisition terminal 131 and the sampling plate 11 to reduce the risk of rust at the connection between the voltage acquisition terminal 131 and the sampling plate 11. In other words, the connection between the voltage acquisition terminal 131 and the sampling plate 11 does not require a gluing process, which is helpful to simplify the production process of the information acquisition component 10 and reduce the manufacturing and assembly costs of the information acquisition component 10.

[0115] According to some embodiments of the present application, referring to Figure 10 and Figure 11 As shown, the voltage collection terminal 131 has a deformation section 1311, and the mounting base membrane 2 has a first avoidance hole 23. The first avoidance hole 23 penetrates the mounting base membrane 2 along the stacking direction of the thermosetting adhesive layer and the base membrane material, and the first avoidance hole 23 and the deformation section 1311 are correspondingly arranged.

[0116] Among them, the deformation section 1311 of the voltage collection terminal 131 can be a retractable elastic deformation structure. For example, the deformation section 1311 is an S-shaped structure, and the first avoidance hole 23 can penetrate the mounting base membrane 2 along the thickness direction of the mounting base membrane 2. The first avoidance hole 23 and the deformation section 1311 are correspondingly arranged, and the positive projection of the deformation section 1311 onto the mounting base membrane 2 can be located in the first avoidance hole 23. Since there is no thermosetting adhesive layer at the first avoidance hole 23, the deformation section 1311 of the voltage collection terminal 131 can move relative to the mounting base membrane 2. When the voltage collection terminal 131 is subjected to external force, the deformation section 1311 of the voltage collection terminal 131 can be extended or shortened to buffer and absorb the external force.

[0117] In the above technical solution, the voltage collection terminal 131 has a deformable section 1311, and the mounting base film 2 has a first avoidance hole 23 corresponding to the deformable section 1311, so that the thermosetting adhesive layer on the mounting base film 2 is separated from the deformable section 1311. The deformable section 1311 of the voltage collection terminal 131 can move relative to the mounting base film 2. When the voltage collection terminal 131 is subjected to external force, the deformable section 1311 of the voltage collection terminal 131 can extend or shorten to buffer and absorb the external force.

[0118] According to some embodiments of the present application, referring to Figure 10-12As shown, the voltage collection terminal 131 further has a first fixing portion 1312 and a second fixing portion 1313 . The first fixing portion 1312 is fixedly connected to the sampling plate 11 , the second fixing portion 1313 is fixedly connected to the electrical connector 12 , and the deformation section 1311 is connected between the first fixing portion 1312 and the second fixing portion 1313 .

[0119] Among them, the first fixing part 1312 and the sampling plate 11 can be fixedly connected by welding, clamping, etc., and the second fixing part 1313 and the electrical connector 12 can be fixedly connected by welding, clamping, etc. The deformation section 1311 can produce elastic deformation when subjected to force to change the distance between the first fixing part 1312 and the second fixing part 1313, and has the function of buffering and absorbing energy.

[0120] In the above technical solution, the first fixing portion 1312 is fixedly connected to the sampling plate 11, the second fixing portion 1313 is fixedly connected to the electrical connector 12, and the deformation section 1311 is connected between the first fixing portion 1312 and the second fixing portion 1313. When the battery cell 20 expands or contracts and causes the sampling plate 11 and the electrical connector 12 to move relative to each other, the distance between the first fixing portion 1312 and the second fixing portion 1313 also changes accordingly. At this time, the deformation section 1311 can generate elastic deformation between the first fixing portion 1312 and the second fixing portion 1313 to compensate for the change in the distance between the first fixing portion 1312 and the second fixing portion 1313. That is, when the first fixing portion When the distance between 1312 and the second fixing portion 1313 decreases, the deformation section 1311 is compressed and its length decreases. When the distance between the first fixing portion 1312 and the second fixing portion 1313 increases, the deformation section 1311 is stretched and its length increases, which is beneficial to reducing the force at the fixed connection between the first fixing portion 1312 and the sampling plate 11, and reducing the risk of failure of the fixed connection between the voltage collection terminal 131 and the sampling plate 11. At the same time, it is also beneficial to reduce the force at the fixed connection between the second fixing portion 1313 and the electrical connector 12, and reduce the risk of failure of the fixed connection between the voltage collection terminal 131 and the electrical connector 12, which is beneficial to improving the reliability and stability of the voltage collection terminal 131.

[0121] According to some embodiments of the present application, referring to Figure 10 and Figure 11 As shown, the deformation section 1311 includes: a first section 13111, a second section 13112 and a third section 13113, the two ends of the second section 13112 are respectively connected to the first section 13111 and the third section 13113, the first section 13111 is connected between the first fixing portion 1312 and the second section 13112, the third section 13113 is connected between the second fixing portion 1313 and the second section 13112, and at least two of the first section 13111, the second section 13112 and the third section 13113 are parallel to each other.

[0122] Among them, the first segment 13111, the second segment 13112 and the third segment 13113 of the deformation segment 1311 are connected in sequence, the first segment 13111 and the second segment 13112 can be parallel to each other, or the first segment 13111 and the third segment 13113 can be parallel to each other, or the first segment 13111, the second segment 13112, and the third segment 13113 are parallel to each other. When the sampling plate 11 and the electrical connector 12 are relatively displaced, the first fixing portion 1312 and the first segment 13111 can move synchronously with the sampling plate 11, and the second fixing portion 1313 and the second segment 13112 can move synchronously with the electrical connector 12. Under the action of the second segment 13112, the connection between the second segment 13112 and the first segment 13111 undergoes elastic deformation, so that an angle is formed between the parallel second segment 13112 and the first segment 13111, or the angle between the second segment 13112 and the first segment 13111 connected at an angle is changed. At the same time, the connection between the second segment 13112 and the third segment 13113 undergoes elastic deformation, so that an angle is formed between the parallel second segment 13112 and the third segment 13113, or the angle between the second segment 13112 and the third segment 13113 connected at an angle is changed, thereby realizing the expansion and contraction of the deformation segment 1311.

[0123] In the above technical solution, the deformation section 1311 includes a first section 13111, a second section 13112 and a third section 13113 connected in sequence, and at least two of the first section 13111, the second section 13112 and the third section 13113 are parallel to each other. When the sampling plate 11 and the electrical connector 12 are relatively displaced, the connection between the second section 13112 and the first section 13111 is elastically deformed, and the connection between the second section 13112 and the third section 13113 is elastically deformed, so that the deformation section 13111 is deformed. The variable section 1311 is extended and retracted to compensate for the change in the distance between the first fixing portion 1312 and the second fixing portion 1313, so as to reduce the force at the fixed connection between the first fixing portion 1312 and the sampling plate 11, and reduce the risk of failure of the fixed connection between the voltage collection terminal 131 and the sampling plate 11. At the same time, it is also beneficial to reduce the force at the fixed connection between the second fixing portion 1313 and the electrical connector 12, and reduce the risk of failure of the fixed connection between the voltage collection terminal 131 and the electrical connector 12, thereby helping to improve the reliability and stability of the voltage collection terminal 131.

[0124] According to some embodiments of the present application, the deformation section 1311 includes: a first section 13111, a second section 13112 and a third section 13113, the two ends of the second section 13112 are respectively connected to the first section 13111 and the third section 13113, the first section 13111 is connected between the first fixed portion 1312 and the second section 13112, the third section 13113 is connected between the second fixed portion 1313 and the second section 13112, an angle is formed between the second section 13112 and the first section 13111, and / or an angle is formed between the second section 13112 and the third section 13113.

[0125] Among them, the first segment 13111, the second segment 13112 and the third segment 13113 of the deformation section 1311 are connected in sequence, and an angle is formed between the second segment 13112 and the first segment 13111, or an angle is formed between the second segment 13112 and the third segment 13113, or an angle is formed between the second segment 13112 and the first segment 13111 and the third segment 13113 respectively. When the sampling plate 11 and the electrical connector 12 are relatively displaced, the first fixing portion 1312 and the first segment 13111 can move synchronously with the sampling plate 11, and the second fixing portion 1313 and the second segment 13112 can move synchronously with the electrical connector 12. Under the action of the second segment 13112 and the second segment 13112, the connection between the second segment 13112 and the first segment 13111 undergoes elastic deformation, so that an angle is formed between the parallel second segment 13112 and the first segment 13111, or the angle between the second segment 13112 and the first segment 13111 connected at an angle is changed. At the same time, the connection between the second segment 13112 and the third segment 13113 undergoes elastic deformation, so that an angle is formed between the parallel second segment 13112 and the third segment 13113, or the angle between the second segment 13112 and the third segment 13113 connected at an angle is changed, thereby realizing the expansion and contraction of the deformable segment 1311.

[0126] In the above technical solution, the deformation section 1311 includes a first section 13111, a second section 13112 and a third section 13113 connected in sequence, and an angle is formed between the second section 13112 and the first section 13111, and / or an angle is formed between the second section 13112 and the third section 13113. When the sampling plate 11 and the electrical connector 12 are relatively displaced, the connection between the second section 13112 and the first section 13111 is elastically deformed, and the connection between the second section 13112 and the third section 13113 is elastically deformed. The deformation section 1311 is deformed so as to expand and contract to compensate for the change in the distance between the first fixing portion 1312 and the second fixing portion 1313, thereby reducing the force at the fixed connection between the first fixing portion 1312 and the sampling plate 11, and reducing the risk of failure of the fixed connection between the voltage collection terminal 131 and the sampling plate 11. At the same time, it is also beneficial to reduce the force at the fixed connection between the second fixing portion 1313 and the electrical connector 12, and reduce the risk of failure of the fixed connection between the voltage collection terminal 131 and the electrical connector 12, thereby helping to improve the reliability and stability of the voltage collection terminal 131.

[0127] According to some embodiments of the present application, referring to Figure 7 and Figure 10 As shown, the information collection terminal 13 includes: a temperature collection terminal 132, which is fixedly connected to the sampling plate 11 and the electrical connector 12. The temperature collection terminal 132 is used to collect the temperature of the battery cell 20. A protective layer is provided at the connection between the temperature collection terminal 132 and the sampling plate 11.

[0128] Among them, the temperature collection terminal 132 can be thermally connected to the battery cell 20 to collect the temperature of the battery cell 20. The temperature collection terminal 132 is fixedly connected to the electrical connector 12 to fix the temperature collection terminal 132 through the electrical connector 12 to reduce the risk of shaking of the temperature collection terminal 132. The temperature collection terminal 132 and the sampling plate 11 also form an electrical connection at the fixed connection. The temperature collection terminal 132 can send the collected temperature of the battery 100 to the sampling plate 11. The connection between the temperature collection terminal 132 and the sampling plate 11 can form a protective layer through a dispensing process. The protective layer forms a seal at the connection between the temperature collection terminal 132 and the sampling plate 11 to prevent external air, water and other substances from contacting the connection between the temperature collection terminal 132 and the sampling plate 11 to reduce the risk of rust at the connection between the temperature collection terminal 132 and the sampling plate 11.

[0129] In the above technical solution, a protective layer is provided at the connection between the temperature acquisition terminal 132 and the sampling plate 11 to reduce the risk of rust at the connection between the temperature acquisition terminal 132 and the sampling plate 11 and improve the reliability of the connection between the temperature acquisition terminal 132 and the sampling plate 11.

[0130] According to some embodiments of the present application, referring to Figure 13 As shown, the temperature acquisition terminal 132 is snap-connected with the electrical connector 12 .

[0131] Among them, one of the temperature acquisition terminal 132 and the electrical connector 12 can be formed with a card slot 1321, and the other of the temperature acquisition terminal 132 and the electrical connector 12 is suitable for card engagement with the card slot 1321 to achieve card engagement between the temperature acquisition terminal 132 and the electrical connector 12.

[0132] In the above technical solution, the temperature acquisition terminal 132 and the electrical connector 12 that are connected by snap-fitting are easy to assemble, thereby reducing the difficulty of assembling the temperature acquisition terminal 132 and improving the assembly efficiency of the temperature acquisition terminal 132 .

[0133] According to some embodiments of the present application, referring to Figure 13 As shown, the temperature collection terminal 132 is formed with a slot 1321 , and a portion of the electrical connector 12 is assembled in the slot 1321 .

[0134] Among them, the card slot 1321 of the temperature collection terminal 132 is suitable for being clipped and matched with the upper and lower sides of the thickness direction of the electrical connector 12 to improve the stability of the clipping and matching between the temperature collection terminal 132 and the electrical connector 12. At the same time, the temperature collection terminal 132 is also suitable for being thermally connected to the battery cell 20 through the thermal pad 1322 on the outside of the card slot 1321. The thermal pad 1322 can transfer the heat of the battery cell 20 to the temperature collection terminal 132, so that the temperature collection terminal 132 can collect the temperature of the battery cell 20.

[0135] In the above technical solution, part of the electrical connector 12 is assembled in the card slot 1321 formed by the temperature collection terminal 132 to improve the stability of the card fit between the temperature collection terminal 132 and the electrical connector 12. The temperature collection terminal 132 can also collect the temperature of the battery cell 20 outside the card slot 1321, thereby improving the structure of the temperature collection terminal 132, taking up little space, and facilitating assembly.

[0136] According to some embodiments of the present application, referring to Figure 4 and Figure 5 As shown, the mounting base film 2 has a second avoidance hole 24 , which penetrates the mounting base film 2 along the stacking direction of the thermosetting adhesive layer and the base film material. The second avoidance hole 24 is used to avoid the pole of the battery cell 20 .

[0137] Among them, the second avoidance hole 24 can penetrate the installation base membrane 2 in the thickness direction of the installation base membrane 2, that is, the second avoidance hole 24 penetrates the base membrane material and the thermosetting adhesive layer at the same time. In the thickness direction of the installation base membrane 2, the second avoidance hole 24 can correspond one-to-one to the pole of the battery cell 20. The pole of the battery cell 20 can be penetrated by the second avoidance hole 24 to facilitate the electrical connection between the electrical connector 12 and the pole. The electrical connector 12 can connect the poles of two adjacent battery cells 20 to realize the electrical connection between the two battery cells 20.

[0138] In the above technical solution, the mounting base film 2 has a pole for avoiding the battery cell 20 so as to facilitate electrical connection between the electrical connector 12 and the pole.

[0139] According to some embodiments of the present application, referring to Figure 7 As shown, the sampling plate 11 is connected to a connection terminal 14 , and the connection terminal 14 is suitable for being plugged into an adapter.

[0140] The sampling board 11 can be connected to the connection terminal 14 by crimping, welding, or other methods. The connection terminal 14 is suitable for plugging into an adapter, which can be connected to a battery management system. The sampling board 11 can transmit information parameters of the battery cell 20 to the connection terminal 14. The connection terminal 14 transmits the information parameters of the battery cell 20 to the battery management system through the adapter, so that the battery management system can monitor the status of the battery cell 20. The connection terminal 14 and the adapter can be a quick-plug structure. For example, the connection terminal 14 is a quick-plug male connector and the adapter is a quick-plug female connector. The plug-in assembly of the connection terminal 14 and the adapter is convenient and reliable.

[0141] In the above technical solution, the sampling board 11 is connected to a connection terminal 14 suitable for plugging into an adapter. The sampling board 11 can output information parameters of the battery cell 20 through the connection terminal 14 and the adapter, so that the sampling board 11 can communicate with the external battery 100 management system.

[0142] According to some embodiments of the present application, the material of the thermosetting adhesive layer includes an adhesive, a flame retardant, and a curing agent.

[0143] Among them, the adhesive has viscosity, and the adhesive can be polyurethane. Polyurethane has polarity and can be bonded to polar substances such as base film materials, electrical connectors 12, and information acquisition terminals 13. The flame retardant can be a phosphorus-based flame retardant, such as phosphate esters, phosphonates, etc. The flame retardant can make flammable polymers flame retardant. The curing agent can be isocyanate. The curing agent can make the adhesive solidify after cooling from the molten state, so that the thermosetting adhesive layer is difficult to adhere to other particles after curing, and the thermosetting adhesive layer can still maintain a non-sticky solid state after being heated again.

[0144] In the above technical solution, the material of the thermosetting adhesive layer includes adhesive, flame retardant and curing agent. The thermosetting adhesive layer can form a strong bond between the base film material and the information sampling structure 1. The cured thermosetting adhesive layer is not easy to adhere to particles and other foreign matter, and is flame retardant, which is beneficial to improving the reliability and safety of the thermosetting adhesive layer.

[0145] According to some embodiments of the present application, the present application also provides a battery 100, including: a battery cell 20 and an information acquisition component 10, the information acquisition component 10 is the information acquisition component 10 of the battery cell 20 of the above embodiment, and the sampling structure is connected to the battery cell 20 to collect information parameters of the battery cell 20.

[0146] According to some embodiments of the present application, the present application further provides an electrical device 1000 , comprising the battery 100 of the above embodiment.

[0147] According to some embodiments of the present application, referring to Figure 3-Figure 11 As shown, an information acquisition component 10 is provided. The information acquisition component 10 includes an information sampling structure 1 and a mounting base film 2. The mounting base film 2 includes a stacked base film material and a thermosetting adhesive layer. The information sampling structure 1 is arranged on the thermosetting adhesive layer of the mounting base film 2. The solidified thermosetting adhesive layer is not easy to adhere to foreign matter such as particles, so as to reduce the risk of foreign matter falling off from the thermosetting adhesive layer. The information sampling structure 1 includes a sampling plate 11, an electrical connector 12, and information collection terminals 13. The information collection terminals 13 include a voltage collection terminal 131 and a temperature collection terminal 132. One end of the voltage collection terminal 131 can be welded to the sampling plate 11, and the other end can be ultrasonically welded to the surface of the electrical connector 12 facing the mounting base film 2. After welding, the bottom of the mounting base film 2 is covered. One end of the temperature collection terminal 132 can be fixedly connected to the sampling plate 11 by welding. The connection between the temperature collection terminal 132 and the sampling plate 11 can be glued to form a protective layer. The other end of the temperature collection terminal 132 can be snap-connected to the electrical connector 12 and contact the battery cell 20 through a thermal pad 1322. The mounting base film 2 has through-holes 21 that absorb expansion between the battery cells 20, reducing the risk of tearing the mounting base film 2 when the battery cells 20 expand. A notch structure 22 is added at the contact between the mounting base film 2 and the sampling plate 11 to reduce the risk of the mounting base film 2 cutting the sampling plate 11 during assembly and vibration. The mounting base film 2 has a first avoidance hole 23 at a position corresponding to the deformable section 1311 of the voltage collection terminal 131 , so that the deformable section 1311 of the voltage collection terminal 131 can absorb the dimensional change caused by the expansion of the battery cell 20 .

[0148] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0149] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0150] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery cell information collection component, characterized in that: include: An information sampling structure, wherein the sampling structure is suitable for connecting with the battery cell to collect information parameters of the battery cell; The base film is installed, and the base film includes a base film material and a thermosetting adhesive layer. The thermosetting adhesive layer and the base film material are stacked, and the information sampling structure is arranged on the thermosetting adhesive layer.

2. The battery cell information acquisition component according to claim 1, characterized in that: The mounting base film has a through hole, and along the stacking direction of the thermosetting adhesive layer and the base film material, the through hole penetrates the mounting base film.

3. The battery cell information acquisition component according to claim 2, characterized in that: There are a plurality of through holes, and the plurality of through holes are respectively located at different positions of the mounting base film.

4. The battery cell information acquisition component according to claim 2, characterized in that: The through hole is configured as a strip structure.

5. The battery cell information acquisition component according to any one of claims 1 to 4, characterized in that: The information sampling structure includes: a sampling plate, an electrical connector and an information collection terminal. The sampling plate is arranged on the thermosetting adhesive layer. The sampling plate and the electrical connector are located on the same side of the mounting base film. The electrical connector is used to electrically connect the two battery cells. The information collection terminal is connected between the sampling plate and the electrical connector.

6. The battery cell information acquisition component according to claim 5, characterized in that: A notch structure is formed on the edge of the mounting base film, and the notch structure corresponds to the edge of the sampling plate.

7. The battery cell information acquisition component according to claim 5, characterized in that: The information collection terminal includes a voltage collection terminal, the voltage collection terminal is fixedly connected to the sampling plate, and the voltage collection terminal is fixedly connected to the surface of the electrical connector facing the mounting base film.

8. The battery cell information acquisition component according to claim 7, characterized in that: The voltage collection terminal is fixedly connected to the surface of the sampling plate facing the mounting base film.

9. The battery cell information acquisition component according to claim 7, characterized in that: The voltage collection terminal has a deformation section, and the mounting base film has a first avoidance hole. The first avoidance hole penetrates the mounting base film along the stacking direction of the thermosetting adhesive layer and the base film material, and the first avoidance hole and the deformation section are correspondingly arranged.

10. The battery cell information acquisition component according to claim 9, characterized in that: The voltage collection terminal further comprises a first fixing portion and a second fixing portion, wherein the first fixing portion is fixedly connected to the sampling plate, the second fixing portion is fixedly connected to the electrical connector, and the deformation section is connected between the first fixing portion and the second fixing portion.

11. The battery cell information acquisition component according to claim 10, characterized in that: The deformation section includes: a first section, a second section and a third section, the two ends of the second section are respectively connected to the first section and the third section, the first section is connected between the first fixing portion and the second section, the third section is connected between the second fixing portion and the second section, and at least two of the first section, the second section and the third section are parallel to each other.

12. The battery cell information acquisition component according to claim 10, characterized in that: The deformation section includes: a first section, a second section and a third section, the two ends of the second section are respectively connected to the first section and the third section, the first section is connected between the first fixing portion and the second section, the third section is connected between the second fixing portion and the second section, and an angle is formed between the second section and the first section, and / or an angle is formed between the second section and the third section.

13. The battery cell information acquisition assembly according to claim 5, characterized in that: The information acquisition terminal includes a temperature acquisition terminal, which is fixedly connected to the sampling plate and the electrical connector. The temperature acquisition terminal is used to collect the temperature of the battery cell. A protective layer is provided at the connection between the temperature acquisition terminal and the sampling plate.

14. The battery cell information acquisition component according to claim 13, characterized in that: The temperature collection terminal is clamped with the electrical connector.

15. The battery cell information acquisition component according to claim 14, characterized in that: The temperature collection terminal is formed with a slot, and a portion of the electrical connector is assembled in the slot.

16. The battery cell information acquisition assembly according to any one of claims 1 to 15, characterized in that: The mounting base film has a second avoidance hole, which penetrates the mounting base film along the stacking direction of the thermosetting adhesive layer and the base film material, and is used to avoid the pole of the battery cell.

17. The battery cell information acquisition component according to any one of claims 1 to 15, characterized in that: The sampling plate is connected with a connecting terminal, and the connecting terminal is suitable for being plugged into an adapter.

18. The battery cell information acquisition assembly according to claim 1, characterized in that: The material of the thermosetting adhesive layer includes adhesive, flame retardant and curing agent.

19. A battery, characterized in that: include: Battery cells; An information acquisition component, wherein the information acquisition component is an information acquisition component of a battery cell according to any one of claims 1 to 18, and the sampling structure is connected to the battery cell to collect information parameters of the battery cell.

20. An electrical device, characterized in that: Comprising a battery according to claim 19.

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