CN218525641U - Battery and power consumption device - Google Patents

Abstract

The application discloses battery and electric installation, the battery includes: battery cell and electromagnetism subassembly. The battery cell includes a housing. The electromagnetic assembly is used for generating an alternating magnetic field so as to enable the shell to generate eddy current. According to the technical scheme, the electromagnetic assembly is arranged in the battery, the electromagnetic assembly can enable the shell of the battery monomer to generate the eddy current effect, so that the shell is heated, and the temperature of the shell can be raised to the electrode assembly and the electrolyte in the battery monomer. Above-mentioned technical scheme compares in the intensification of electrical heating piece to the battery, and the technical scheme of this application can improve the free temperature of battery sooner to promote the free efficiency of battery. And the electromagnetic assembly does not need to be bonded, the bonding assembly process is cancelled, the temperature rise of the single battery can be realized under the condition that the electromagnetic assembly is not in direct contact with the single battery or the battery box body, and the safety is further ensured.

Description

Battery and power consumption device

Technical Field

The present application relates to the field of batteries, and in particular, to a battery and a power consumption device.

Background

Batteries are widely used in electronic devices, such as mobile communication devices, notebook computers, electric motorcycles, electric automobiles, electric airplanes, electric ships, electric toys, and electric tools. The types of the battery include cadmium-nickel battery, nickel-hydrogen battery, lithium ion battery, secondary alkaline zinc-manganese battery and the like.

At present, in addition to improving the performance of the battery, how to improve the safety and operational stability of the battery is one of the research focuses in the field.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a battery and an electric device, which can improve the safety and operation stability of the battery.

In a first aspect, the present application provides a battery comprising: battery cell and electromagnetism subassembly. The battery cell includes a housing. The electromagnetic assembly is used for generating an alternating magnetic field so as to enable the shell to generate eddy current.

In the technical scheme of this application embodiment, set up the electromagnetism subassembly in the battery, the electromagnetism subassembly can make the free shell of battery produce the eddy current effect to heat up the shell, can heat up electrode subassembly and electrolyte among the battery monomer after the shell temperature risees. Foretell technical scheme compares in the electric heating piece can improve the free temperature of battery sooner to promote the free efficiency of battery. And the electromagnetic assembly does not need to be bonded, the bonding assembly process is cancelled, the temperature rise of the single battery can be realized under the condition that the electromagnetic assembly is not in direct contact with the single battery or the battery box body, and the safety is further ensured.

In some embodiments, at least a portion of the housing is made of a conductive metal. The conductive metal material is matched with the electromagnetic assembly, alternating current is introduced into the electromagnetic assembly to generate a magnetic field, the magnetic field acts on the conductive metal to generate an eddy current effect on the surface of the conductive metal, and the temperature of the conductive metal rises under the effect of the eddy current effect to realize the effect of heating the electrode assembly in the battery monomer.

In some embodiments, the conductive metal comprises aluminum or an aluminum alloy. The material has high conductivity, can quickly react with the electromagnetic component, has high heating efficiency, has lower density of aluminum or aluminum alloy, and can ensure the energy density of the battery monomer.

In some embodiments, an electromagnetic assembly comprises: electromagnetic module and controlling means. The electromagnetic module includes an electromagnetic coil. The control device is connected with the electromagnetic coil and controls the magnitude and the direction of current flowing through the electromagnetic coil. Through setting up controlling means to control the electric current size and the direction of flowing through solenoid, can let in alternating current in solenoid in order to produce electromagnetic induction, thereby reach the purpose to the free shell heating of battery.

In some embodiments, the control device further comprises a power interface for connecting with a power source to power the electromagnetic module. The power interface is connected with a power supply and can input electric energy into the electromagnetic coil to generate electromagnetic induction.

In some embodiments, the battery further comprises a box body, the box body comprises a top plate, a bottom plate and a plurality of side plates, the top plate and the bottom plate are arranged oppositely, the side plates are sequentially connected end to end, the top plate, the bottom plate and the side plates jointly enclose to form a containing cavity, the battery monomer is arranged in the containing cavity, and the electromagnetic module is arranged on one side, facing the battery monomer, of the box body. Through setting up the roof, the stable in structure of box can be guaranteed to bottom plate and a plurality of curb plate, the free security of intracavity battery is guaranteed to hold, locates electromagnetic module box one side towards the battery monomer, can guarantee that electromagnetic module also sets up in holding the chamber, guarantees electromagnetic module's security, shortens the distance between electromagnetic module and the battery monomer simultaneously, forms the eddy current effect fast on guaranteeing the free shell of battery, reaches the technological effect of quick increase in temperature.

In some embodiments, the battery further comprises a heat exchange assembly comprising: heat exchange plate and conducting strip. The heat exchange plate is arranged on one side of the box body facing the battery monomer and provided with a heat exchange flow channel. The conducting strip is arranged in the heat exchange runner and used for being matched with the electromagnetic module to generate vortex so as to heat exchange media in the heat exchange runner. The temperature of the battery monomer can be adjusted by arranging the heat exchange assembly, the operation efficiency and stability of the battery monomer are guaranteed, the conducting plate is arranged in the heat exchange runner, the conducting plate can be matched with the electromagnetic coil, and the eddy effect is formed on the surface of the conducting plate to improve the temperature of a heat exchange medium in the heat exchange runner.

In some embodiments, the number of the battery cells is multiple, and the electromagnetic module is disposed between two adjacent battery cells. The electromagnetic module is clamped among the plurality of battery monomers, the structure is simple, the assembly is convenient, and the electromagnetic module can be conveniently overhauled and replaced.

In some embodiments, the battery includes a plurality of battery packs, each battery pack includes a plurality of single batteries arranged in sequence in a thickness direction, the plurality of battery packs are arranged in sequence in a width direction of the single batteries, and the electromagnetic module is disposed between two adjacent battery packs. The electromagnetic module is arranged between the two battery packs, and can heat up the plurality of battery packs simultaneously, so that the heating efficiency of the electromagnetic assembly is improved.

In some embodiments, the battery further comprises a temperature sensor disposed in the housing, and the temperature sensor is connected to the control device. Can acquire the free temperature information of battery through setting up temperature sensor, controlling means can control electromagnetic module's electric current according to temperature information to control electromagnetic module's electromagnetic induction intensity adjusts the efficiency of heating the shell.

In a second aspect, the present application provides an electric device, which includes the battery in any of the above embodiments, wherein the battery is used for providing electric energy.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an exploded structure of a battery according to an embodiment of the present disclosure;

fig. 3 is an exploded schematic view of a battery cell according to an embodiment of the present disclosure;

fig. 4 is an exploded view of an electromagnetic module of a battery according to an embodiment of the present disclosure;

fig. 5 is an exploded view of a heat exchange assembly of a battery according to an embodiment of the present disclosure.

Reference numerals describe in detail:

1. a vehicle; 10. an electrode unit; 11. an electrode assembly; 2. a battery; 20. a housing; 21. an opening; 24. a pressure relief mechanism; 25. an electrode terminal; 30. an end cap assembly; 3. a controller; 4. a motor; 5. a box body; 51. a first portion; 52. a second portion; 53. a top plate; 54. a base plate; 55. a side plate; 56. an accommodating chamber; 7. a battery cell; 8. an electromagnetic assembly; 801. an electromagnetic module; 802. a control device; 803. an electromagnetic coil; 804. a protective shell; 805. a binding post; 9. a heat exchange assembly; 901. a heat exchange plate; 902. a conductive sheet; 903. and a heat exchange flow channel.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

From the development of market conditions, new energy vehicles are more and more concerned by the market. The new energy automobile comprises an electric automobile which is driven by a battery to run. The safety of the battery is related to the safety and stability of the operation of the entire vehicle, and thus it is required to improve the safety of the battery as well as the stability of the operation. During the research, the inventor finds that the operation efficiency of the battery is influenced by the temperature, and the operation efficiency of the battery is reduced under the condition that the ambient temperature is too high or too low. Therefore, the temperature of the battery needs to be timely regulated.

In some batteries, an electrical heating plate is usually provided to control the temperature of the battery cell. The electric heating sheet is arranged in the box body of the battery. The electric heating sheet is internally provided with a conductive object with larger resistance, and the conductive object generates heat through the Joule effect so as to heat and raise the temperature of the battery. The electric heating sheet is connected with the battery through viscose. The adhesive loses viscosity at a contact temperature of more than 60 ℃, so that the electric heating sheet is separated from the battery box body, and the separated electric heating sheet is possibly burnt dry to cause the combustion of the battery, thereby causing safety accidents. Moreover, the electric heating plate has high energy consumption, low heat conduction efficiency and poor heating effect.

Based on the above considerations, in order to improve the safety of the battery operation and ensure the heating effect, the inventor studied to design a battery, which eliminates the electric heating sheet and is provided with the electromagnetic assembly. The electromagnetic assembly can enable the shell of the battery monomer to generate an eddy current effect, so that the shell is heated, and the temperature of the electrode assembly and electrolyte in the battery monomer can be heated after the temperature of the shell is raised. Above-mentioned technical scheme can improve the free temperature of battery more fast in comparing in electric heating piece to promote the free efficiency of battery. And the electromagnetic assembly does not need to be bonded, the bonding assembly process is cancelled, the temperature rise of the single battery can be realized under the condition that the electromagnetic assembly is not in direct contact with the single battery or the battery box body, and the safety is further ensured.

The battery disclosed in the embodiment of the present application can be used in electric devices such as vehicles, ships or aircrafts, but not limited thereto. The battery and the power supply system constituting the electric device disclosed in the present application can be used. The temperature rise speed of the battery can be effectively improved, and the operation efficiency of the battery is ensured. And the safety of the heating process can be effectively guaranteed by the heating mode of the electromagnetic assembly.

The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be but is not limited to a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like.

For convenience of description, the following embodiments are described by taking an electric device as an example of a vehicle according to an embodiment of the present application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1 according to some embodiments of the present disclosure. The vehicle 1 can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range-extended automobile and the like. The interior of the vehicle 1 is provided with a battery 2, and the battery 2 may be provided at the bottom or at the head or tail of the vehicle 1. The battery 2 may be used for power supply of the vehicle 1, and for example, the battery 2 may serve as an operation power source of the vehicle 1. The vehicle 1 may further comprise a controller 3 and a motor 4, the controller 3 being adapted to control the battery 2 to power the motor 4, e.g. for start-up, navigation and operational power demands while driving of the vehicle 1.

In some embodiments of the present application, the battery 2 may be used not only as an operating power source of the vehicle 1, but also as a driving power source of the vehicle 1, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 1.

Referring to fig. 2, fig. 2 is an exploded view of a battery 2 according to some embodiments of the present disclosure. The battery 2 includes a case 5 and a battery cell 7, and the battery cell 7 is accommodated in the case 5. The box 5 is used for providing a containing space for the battery unit 7, and the box 5 can adopt various structures.

In some embodiments, the case 5 includes a first portion 51 and a second portion 52, the first portion 51 and the second portion 52 cover each other, and the first portion 51 and the second portion 52 jointly define a receiving space for receiving the battery cell 7. The second part 52 may be a hollow structure with an open end, the first part 51 may be a plate-shaped structure, and the first part 51 covers the open side of the second part 52, so that the first part 51 and the second part 52 jointly define an accommodating space; the first portion 51 and the second portion 52 may be both hollow structures with one side open, and the open side of the first portion 51 may cover the open side of the second portion 52. Of course, the box 5 formed by the first part 51 and the second part 52 may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc.

In the battery 2, the number of the battery cells 7 may be multiple, and the multiple battery cells 7 may be connected in series or in parallel or in series-parallel, where in series-parallel refers to both series connection and parallel connection among the multiple battery cells 7. The plurality of battery cells 7 can be directly connected in series or in parallel or in series-parallel, and the whole formed by the plurality of battery cells 7 is accommodated in the box body 5. Of course, the battery 2 may also be a battery module formed by connecting a plurality of battery cells 7 in series, in parallel, or in series-parallel, and a plurality of battery modules are connected in series, in parallel, or in series-parallel to form a whole and are accommodated in the box 5. The battery 2 may also include other structures, for example, the battery may further include a bus member for achieving electrical connection between the plurality of battery cells.

Wherein, each battery cell 7 can be a secondary battery or a primary battery; but is not limited to, a lithium sulfur battery, a sodium ion battery, or a magnesium ion battery. The battery cell 7 may be cylindrical, flat, rectangular parallelepiped, or other shape.

Referring to fig. 3, fig. 3 is an exploded structural schematic diagram of a battery cell 7 according to some embodiments of the present disclosure. The battery cell 7 refers to the smallest unit constituting the battery 2. As shown in fig. 3, the battery cell 7 includes an end cap assembly 30, a case 20, an electrode assembly 11, and other functional components.

The end cap assembly 30 refers to a member that covers the opening 21 of the case 20 to insulate the internal environment of the battery cell 7 from the external environment. Without limitation, the shape of the end cap assembly 30 may be adapted to the shape of the housing 20 to fit the housing 20. Optionally, the end cap assembly 30 may be made of a material (e.g., an aluminum alloy) having a certain hardness and strength, so that the end cap assembly 30 is not easily deformed when being extruded and collided, and the battery cell 7 may have a higher structural strength and improved safety performance. The end cap assembly 30 may be provided with functional components such as the electrode terminals 25. The electrode terminals 25 may be used to electrically connect with the electrode assembly 11 for outputting or inputting electric energy of the battery cells 7.

In some embodiments, the end cap assembly 30 may further include a pressure relief mechanism 24 for relieving the internal pressure when the internal pressure or temperature of the battery cell 7 reaches a threshold value. The material of the end cap assembly 30 may also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not limited in this embodiment. In some embodiments, insulation may also be provided on the inside of the end cap assembly 30, which may be used to isolate the electrically connected components within the housing 20 from the end cap assembly 30 to reduce the risk of short circuits. Illustratively, the insulator may be plastic, rubber, or the like.

The outer case 20 is a component for mating with the end cap assembly 30 to form the internal environment of the battery cell 7. Wherein the resulting internal environment may be used to house the electrode assembly 11, electrolyte, and other components. The housing 20 and the end cap assembly 30 may be separate components, and an opening 21 may be provided in the housing 20 to form the internal environment of the battery cell 7 by closing the end cap assembly 30 at the opening 21. Without limitation, the end cap assembly 30 and the housing 20 may be integrated, and specifically, the end cap assembly 30 and the housing 20 may form a common connecting surface before other components are inserted into the housing, and then the end cap assembly 30 covers the housing 20 when it is necessary to enclose the inside of the housing 20. The housing 20 may be a variety of shapes and sizes, such as rectangular parallelepiped, cylindrical, hexagonal prism, etc. Specifically, the shape of the case 20 may be determined according to the specific shape and size of the electrode assembly 11. The material of the housing 20 may be various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present invention is not limited thereto.

The electrode assembly 11 is a part in which electrochemical reactions occur in the battery cell 7. One or more electrode assemblies 11 may be contained within the housing 20. The electrode assembly 11 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is generally disposed between the positive electrode sheet and the negative electrode sheet. The portions of the positive and negative electrode tabs having the active material constitute the body portion of the electrode assembly 11, and the portions of the positive and negative electrode tabs having no active material each constitute a tab. The positive electrode tab and the negative electrode tab may be located at one end of the main body portion together or at both ends of the main body portion, respectively. During the charge and discharge of the battery 2, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tabs are connected to the electrode terminals 25 to form a current loop. The reaction efficiency between the active material and the electrolyte is affected by temperature, and particularly, in the case where the temperature is too low, the reaction efficiency is lowered. Therefore, in order to ensure the reaction between the active material and the electrolyte and ensure the charge-discharge efficiency of the battery 2, the battery 2 provided in the embodiment of the present application can effectively raise the temperature of the electrolyte and the active material.

The battery 2 provided by the embodiment of the application comprises: battery cells 7 and an electromagnetic assembly 8. The battery cell 7 includes a housing 20. The electromagnetic assembly 8 is used to generate an alternating magnetic field to cause the housing 20 to generate eddy currents.

In the technical scheme of this application embodiment, set up electromagnetism subassembly 8 in battery 2, electromagnetism subassembly 8 can make the shell 20 of battery monomer 7 produce the eddy current effect to raise the temperature with shell 20, can raise the temperature to electrode subassembly 11 and electrolyte among the battery monomer 7 after the shell 20 temperature risees.

Compared with the temperature rise of the battery 2 by the electric heating sheet, the technical scheme can improve the temperature of the battery monomer 7 more quickly, so that the efficiency of the battery monomer 7 is improved. Moreover, the electromagnetic assembly 8 does not need to be bonded, the bonding assembly process is omitted, the temperature of the single battery 7 can be raised under the condition that the electromagnetic assembly is not in direct contact with the single battery 7 or the battery box body 5, and the safety is further ensured.

In some embodiments of the present application, at least a portion of the housing 20 is made of a conductive metal. The conductive metal material is matched with the electromagnetic assembly 8, alternating current is introduced into the electromagnetic assembly 8 to generate a magnetic field, the magnetic field acts on the conductive metal to generate an eddy current effect on the surface of the conductive metal, and the temperature of the conductive metal is increased under the effect of the eddy current effect to realize the effect of heating the electrode assembly 11 in the battery monomer 7.

In some embodiments, the housing 20 is made entirely of a conductive metal, which can further increase the speed of the eddy current effect and increase the heating efficiency.

In some embodiments of the present application, the conductive metal comprises aluminum or an aluminum alloy. The material has high conductivity, can quickly react with the electromagnetic component 8, has high heating efficiency, has lower density of aluminum or aluminum alloy, and can ensure the energy density of the battery monomer 7.

In some embodiments of the present application, the electromagnetic assembly 8 comprises: an electromagnetic module 801 and a control device 802. The electromagnetic module 801 includes an electromagnetic coil 803. The control device 802 is connected to the electromagnetic coil 803 and controls the magnitude and direction of the current flowing through the electromagnetic coil 803. By providing the control device 802 to control the magnitude and direction of the current flowing through the electromagnetic coil 803, an alternating current can be applied to the electromagnetic coil 803 to generate electromagnetic induction, thereby achieving the purpose of heating the housing 20 of the battery cell 7.

Referring to fig. 2 and fig. 4 in combination, in some embodiments, the electromagnetic module 801 further includes a protective casing 804, and the electromagnetic coil 803 is disposed in the protective casing 804. The protective shell 804 is provided with a terminal 805, and the terminal 805 is used for connecting the electromagnetic coil 803 and the control device 802 so as to input electric energy into the electromagnetic coil 803.

In some embodiments of the present application, the control device 802 further comprises a power interface for connecting with a power source to power the electromagnetic module 801. The power interface is connected to a power source capable of inputting power into the electromagnetic coil 803 to generate electromagnetic induction.

In some embodiments of the present application, the battery 2 further includes a box body 5, the box body 5 includes a top plate 53, a bottom plate 54 and a plurality of side plates 55, the top plate 53 is disposed opposite to the bottom plate 54, the plurality of side plates 55 are sequentially connected end to end, and the top plate 53, the bottom plate 54 and the plurality of side plates 55 jointly enclose to form an accommodating cavity 56. The battery unit 7 is arranged in the accommodating cavity 56, and the electromagnetic module 801 is arranged on one side of the box body 5 facing the battery unit 7. Through setting up roof 53, the stable in structure of box 5 can be guaranteed to bottom plate 54 and a plurality of curb plate 55, guarantee to hold the security of battery monomer 7 in the chamber 56, locate box 5 one side towards battery monomer 7 with electromagnetic module 801, can guarantee that electromagnetic module 801 also sets up in holding chamber 56, guarantee electromagnetic module 801's security, shorten the distance between electromagnetic module 801 and the battery monomer 7 simultaneously, form eddy current effect on guaranteeing battery monomer 7's the shell 20 fast, reach the technological effect of quick increase in temperature.

In some embodiments of the present application, the battery 2 further comprises a heat exchange assembly 9, the heat exchange assembly 9 comprising: a heat exchanger plate 901 and an electrically conductive sheet 902. The heat exchange plate 901 is arranged on one side of the box body 5 facing the battery unit 7, and the heat exchange plate 901 has a heat exchange flow passage 903. The conducting sheet 902 is arranged in the heat exchange flow channel 903, and the conducting sheet 902 is used for generating eddy current in cooperation with the electromagnetic module 801 so as to heat a heat exchange medium in the heat exchange flow channel 903. Through setting up heat exchange assembly 9 and can realizing the regulation to battery monomer 7's temperature, guarantee the efficiency and the stability of battery monomer 7 operation, set up conducting strip 902 in heat transfer runner 903, can cooperate conducting strip 902 and solenoid 803, form the temperature of vortex effect in order to improve heat transfer medium in heat transfer runner 903 on the surface of conducting strip 902.

In some embodiments of the present application, the number of the battery cells 7 is multiple, and the electromagnetic module 801 is disposed between two adjacent battery cells 7. The electromagnetic module 801 is clamped among the plurality of battery units 7, the structure is simple, assembly is convenient, and overhauling and replacement of the electromagnetic module 801 can be facilitated.

In some embodiments of the present application, the battery 2 includes a plurality of battery packs, each battery pack includes a plurality of single batteries 7 arranged in sequence in the thickness direction, the plurality of battery packs are arranged in sequence in the width direction of the single batteries 7, and the electromagnetic module 801 is disposed between two adjacent battery packs. Electromagnetic module 801 is located between two group batteries, can heat up a plurality of group batteries simultaneously, improves electromagnetic assembly 8's heating efficiency.

In some embodiments of the present application, the battery 2 further includes a temperature sensor disposed in the housing 20, and the temperature sensor is connected to the control device 802. The temperature sensor is arranged to acquire temperature information of the battery cell 7, and the control device 802 can control the current of the electromagnetic module 801 according to the temperature information, so as to control the electromagnetic induction intensity of the electromagnetic module 801 and adjust the heating efficiency of the housing 20.

According to some embodiments of the present application, there is also provided an electric device, including the battery 2 according to any of the above aspects, and the battery 2 is used for supplying electric energy to the electric device. The powered device may be any of the aforementioned devices or systems that employ a battery 2. Due to the fact that the electromagnetic assembly 8 is arranged in the battery 2, the temperature of the battery unit 7 can be increased more quickly, and therefore the efficiency of the battery unit 7 is improved. Moreover, the electromagnetic assembly 8 does not need to be bonded, the bonding assembly process is cancelled, the temperature rise of the single battery 7 can be realized under the condition that the electromagnetic assembly is not in direct contact with the single battery 7 or the box body 5 of the battery 2, and the safety is further ensured.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (11)

1. A battery, comprising:

a battery cell comprising a housing;

an electromagnetic assembly for generating an alternating magnetic field to cause the housing to generate eddy currents.

2. The battery of claim 1, wherein at least a portion of the housing is made of a conductive metal.

3. The battery of claim 2, wherein the conductive metal comprises aluminum or an aluminum alloy.

4. The battery of claim 1, wherein the electromagnetic assembly comprises:

an electromagnetic module comprising an electromagnetic coil;

and the control device is connected with the electromagnetic coil and controls the magnitude and the direction of current flowing through the electromagnetic coil.

5. The battery of claim 4, wherein the control device further comprises a power interface for connecting with a power source to power the electromagnetic module.

6. The battery according to claim 4 or 5, wherein the battery further comprises a box body, the box body comprises a top plate, a bottom plate and a plurality of side plates, the top plate and the bottom plate are arranged oppositely, the side plates are sequentially connected end to end, the top plate, the bottom plate and the side plates jointly enclose to form an accommodating cavity, the battery cell is arranged in the accommodating cavity, and the electromagnetic module is arranged on one side of the box body facing the battery cell.

7. The battery of claim 6, further comprising a heat exchange assembly, the heat exchange assembly comprising:

the heat exchange plate is arranged on one side, facing the battery monomer, of the box body and provided with a heat exchange flow channel;

and the conducting strip is arranged in the heat exchange flow channel and used for being matched with the electromagnetic module to generate vortex so as to heat up the heat exchange medium in the heat exchange flow channel.

8. The battery according to claim 4 or 5, wherein the number of the battery cells is plural, and the electromagnetic module is provided between two adjacent battery cells.

9. The battery of claim 8, wherein the battery comprises a plurality of battery packs, each battery pack comprises a plurality of battery cells arranged in sequence along a thickness direction, the plurality of battery packs are arranged in sequence along a width direction of the battery cells, and the electromagnetic module is arranged between two adjacent battery packs.

10. The battery of claim 4 or 5, further comprising a temperature sensor disposed in the housing, wherein the temperature sensor is connected to the control device.

11. An electric device, characterized in that the electric device comprises a battery according to any one of claims 1-10 for providing electric energy.

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