CN220984751U - Battery and electricity utilization device - Google Patents

Abstract

The application discloses a battery and an electric device. The battery comprises a battery pack and a pressing assembly, wherein a plurality of rows of battery packs are sequentially arranged along a first direction, and each row of battery packs comprises a plurality of battery cells which are sequentially arranged along a second direction and are electrically connected with each other; the first direction and the second direction are intersected; the pressing and fixing assembly is arranged on the end cover of the battery cell of the battery pack, and covers two adjacent rows of battery packs respectively, and a heat exchange medium is arranged in the pressing and fixing assembly. The pressing component can enhance the mechanical strength of the battery, improve the stability of the battery, and exchange heat to the battery monomer through the heat exchange medium, so that the battery monomer can work at a proper temperature, thereby improving the cycle performance of the battery, simplifying the structure, saving the space and improving the energy density of the battery.

Description

Battery and electricity utilization device

Technical Field

The present application relates to the field of battery technology, and more particularly, to a battery and an electric device.

Background

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

In the development of battery technology, how to increase the energy density of a battery is an important research direction in battery technology.

Disclosure of utility model

The application provides a battery and an electric device, which can improve the energy density of the battery.

In a first aspect, an embodiment of the present application provides a battery, including a battery pack and a press-fixing assembly, where a plurality of rows of battery packs are sequentially arranged along a first direction, and each row of battery packs includes a plurality of battery cells sequentially arranged along a second direction and electrically connected to each other; the first direction and the second direction are intersected; the pressing and fixing assembly is arranged on the end cover of the battery cell of the battery pack, and covers two adjacent rows of battery packs respectively, and a heat exchange medium is arranged in the pressing and fixing assembly.

In the scheme, the pressing assembly is used for connecting the battery packs and pressing the battery packs on the adjacent battery packs, so that the mechanical strength of the battery is enhanced, and the stability of the battery is improved. Meanwhile, the heat exchange medium is arranged in the pressing and fixing assembly, and heat exchange can be carried out on the battery monomer through the heat exchange medium, so that the battery monomer can work at a proper temperature, and the cycle performance of the battery is improved. The pressing assembly integrates two functions of connecting and fixing adjacent battery packs and exchanging heat for battery monomers, and a thermal management component is not required to be arranged on the same side surface of a battery provided with a layering structure, so that the structure is simplified, the space is saved, and the energy density of the battery can be improved.

In some embodiments, the press-fit assembly includes a press tube extending in the second direction and a plug, the heat exchange medium being disposed in the press tube; the two plugging pieces are respectively arranged at two opposite ends of the pressing pipe along the second direction.

In the scheme, the pressure pipe is sealed through the plugging piece, so that the sealing performance of the pressure fixing assembly is improved. In addition, the pressing and fixing assemblies in the embodiment of the application are not required to be connected and are independently arranged, so that a connecting pipe is omitted, and the production cost of the battery is reduced.

In some embodiments, the side of the pressure tube facing away from the battery pack is provided with a reinforcing rib, which can enhance the structural strength of the pressure tube.

In some embodiments, the reinforcing ribs extend in the second direction, increasing the length of the reinforcing ribs, further increasing the structural strength of the crimp tube.

In some embodiments, the reinforcing rib comprises a first sub-rib and two second sub-ribs, the two second sub-ribs being respectively arranged on opposite sides of the pressure tube along the first direction, the first sub-rib being arranged between the two second sub-ribs.

In the scheme, the rigidity of the pressure pipe is further improved and the deformation resistance strength is improved through the cooperation of the first sub-ribs and the two second sub-ribs.

In some embodiments, the plugging piece is detachably arranged at the end part of the pressing pipe, so that damaged parts can be conveniently maintained and replaced, and the cost is reduced.

In some embodiments, the pressing component is adhered to the battery pack through the connecting adhesive layer, so that the battery pack is simple and easy to install, and the production efficiency of the battery can be improved.

In some embodiments, the connection glue layer is a heat conducting glue layer, so that heat of the battery monomer can be transferred to the pressing and fixing assembly more quickly, and the heat exchange efficiency of the battery is improved.

In some embodiments, the outer surface of the compression assembly is wrapped with an insulating layer. If the pressing component is made of metal materials, the insulating layer is wrapped on the outer side of the pressing component, so that electric leakage of the battery can be prevented to a certain extent, and the reliability of the battery is improved.

In some embodiments, the first direction is a length direction of the battery cell and the second direction is a width direction of the battery cell.

In the scheme, the plurality of battery monomers of each row of battery packs are respectively arranged in sequence along the width direction of the battery monomers, so that the connection among the battery monomers is convenient, and the operation of the battery packs is convenient.

In a second aspect, an embodiment of the present application further provides an electrical device, including a battery according to any one of the foregoing embodiments, where the battery is configured to provide electrical energy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present application;

Fig. 2 is an exploded view of a battery according to some embodiments of the present application;

Fig. 3 is a schematic view of a portion of a battery according to some embodiments of the present application;

FIG. 4 is a cross-sectional view of a battery provided in some embodiments of the application;

FIG. 5 is a partial schematic view of a battery provided in some embodiments of the application;

FIG. 6 is a schematic structural diagram of a press-fit assembly according to some embodiments of the present application;

fig. 7 is a schematic cross-sectional view of a crimp tube according to some embodiments of the present application.

In the drawings, the drawings are not drawn to scale.

Reference numerals illustrate:

1000. A vehicle; 100. a battery; 200. a controller; 300. a motor; 10. an upper cover; 20. a battery cell; 400. a battery pack; 500. a press-fixing assembly; 51. pressing a pipe; 52. a blocking member; 53. reinforcing ribs; 531. a first sub-rib; 532. a second sub-rib; 54. connecting the adhesive layer; 55. an insulating layer; 61. a bottom plate, 62, side plates; x, a first direction; y, second direction.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases 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.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present application is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present application, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the embodiments of the present application, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the application shown in the drawings, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are merely illustrative and should not be construed as limiting the application in any way.

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

In the present application, the battery cells may include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, which is not limited in the embodiment of the present application. The battery cell may be in a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, which is not limited in this embodiment of the application.

In the present application, the battery cells may include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, which is not limited in the embodiment of the present application. The battery cell may be in a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, which is not limited in this embodiment of the application. The battery cells are generally classified into three types according to the packaging method: the cylindrical battery cell, the square battery cell and the soft package battery cell are not limited in this embodiment.

Reference to a battery in accordance with an embodiment of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, or the like. The battery generally includes a case for enclosing one or more battery cells. The case body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells.

The battery cell comprises an electrode assembly and electrolyte, wherein the electrode assembly consists of a positive plate, a negative plate and a separation membrane. The battery cell mainly relies on metal ions to move between the positive and negative electrode plates to operate. The positive plate comprises a positive electrode current collector and a positive electrode active material layer, wherein the positive electrode active material layer is coated on the surface of the positive electrode current collector, the current collector without the positive electrode active material layer protrudes out of the current collector coated with the positive electrode active material layer, and the current collector without the positive electrode active material layer is laminated to serve as a positive electrode lug. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate or the like. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer, wherein the negative electrode active material layer is coated on the surface of the negative electrode current collector, the current collector without the negative electrode active material layer protrudes out of the current collector coated with the negative electrode active material layer, and the current collector without the negative electrode active material layer is laminated to serve as a negative electrode tab. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. The material of the separator may be PP (polypropylene) or PE (polyethylene). In addition, the electrode assembly may be a roll-to-roll structure or a lamination structure, and embodiments of the present application are not limited thereto.

The battery cell disclosed by the embodiment of the application can be used in electric devices such as vehicles, ships or aircrafts, but is not limited to the electric devices. The power supply system with the battery cells, batteries and the like disclosed by the application can be used for forming the power utilization device, so that the stability of the battery performance and the service life of the battery are improved.

The battery can exhibit different electrical cycle performance at different ambient temperatures, and when the ambient temperature is too high or too low, the cycle performance of the battery can be reduced, even causing a reduction in the service life thereof. In order to ensure safe, stable and excellent running of the new energy automobile, effective heat management must be carried out on the battery, and a heat management component is arranged to control the battery to always work in a proper temperature range so as to improve the cycle performance of the battery. In addition, the battery packs are generally connected into a large module through a layering structure, so that the mechanical strength of the battery is improved. The structure increases the complexity of the battery, occupies the internal space of the battery, and reduces the energy density of the battery.

In order to solve the above technical problems, an embodiment of the present application provides a battery, including a battery pack and a press-fixing assembly, wherein a plurality of rows of battery packs are sequentially arranged along a first direction, and each row of battery packs includes a plurality of battery cells sequentially arranged along a second direction and electrically connected to each other; the pressing and fixing assembly is arranged on the end cover of the battery cell of the battery pack, and covers two adjacent rows of battery packs respectively, and a heat exchange medium is arranged in the pressing and fixing assembly.

In the scheme, the pressing assembly is used for connecting the battery packs and pressing the battery packs on the adjacent battery packs, so that the mechanical strength of the battery is enhanced, and the stability of the battery is improved. Meanwhile, the heat exchange medium is arranged in the pressing and fixing assembly, and heat exchange can be carried out on the battery monomer through the heat exchange medium, so that the battery monomer can work at a proper temperature, and the cycle performance of the battery is improved. The pressing assembly integrates two functions of connecting and fixing adjacent battery packs and exchanging heat for battery monomers, and a thermal management component is not required to be arranged on the same side surface of a battery provided with a layering structure, so that the structure is simplified, the space is saved, and the energy density of the battery can be improved.

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 car, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of description, the following embodiment will take an electric device according to an embodiment of the present application as an example of the vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 100 is provided in the interior of the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may be used as an operating power source of the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, battery 100 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

Referring to fig. 2, fig. 2 is an exploded view of a battery according to some embodiments of the present application. The battery 100 includes a battery case and a battery cell 20. In some embodiments, the battery case may include an upper cover 10 and a case 30, the upper cover 10 and the case 30 being covered with each other, the upper cover 10 and the case 30 together defining a receiving chamber for receiving the battery cell 20. The case 30 may have a hollow structure with one end opened, and the upper cover 10 may have a plate-shaped structure, and the upper cover 10 covers the opening side of the case 30, so that the upper cover 10 and the case 30 together define a receiving cavity; the upper cover 10 and the case 30 may be hollow structures with one side open, and the open side of the upper cover 10 may be closed to the open side of the case 30. Of course, the battery case formed by the upper cover 10 and the case 30 may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc.

As shown in fig. 3, in the battery 100, the plurality of battery cells 20 may be plural, and the plurality of battery cells 20 may be connected in series or parallel or in series-parallel, and the series-parallel refers to that the plurality of battery cells 20 are connected in both series and parallel. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 20 is accommodated in the box body; of course, the battery 100 may also be a battery module formed by connecting a plurality of battery cells 20 in series or parallel or series-parallel connection, and a plurality of battery modules are then connected in series or parallel or series-parallel connection to form a whole and are accommodated in a case. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for making electrical connection between the plurality of battery cells 20.

Wherein each battery cell 20 may be a secondary battery cell or a primary battery cell; but not limited to, lithium sulfur battery cells, sodium ion battery cells, or magnesium ion battery cells. The battery cell 20 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, etc.

Fig. 3 is a schematic view of a portion of a battery according to some embodiments of the present application; FIG. 4 is a cross-sectional view of a battery provided in some embodiments of the application; fig. 5 is a partial schematic view of a battery provided in some embodiments of the application.

Referring to fig. 3-5, in a first aspect, an embodiment of the present application provides a battery 100, where the battery 100 includes a battery pack 400 and a pressing assembly 500, and multiple rows of battery packs 400 are sequentially arranged along a first direction X, and each row of battery packs 400 includes a plurality of battery cells 20 sequentially arranged along a second direction Y and electrically connected to each other; the first direction X and the second direction Y are intersected; the press-fixing assemblies 500 are disposed on the end caps of the battery cells 20 of the battery packs 400, and the press-fixing assemblies 500 respectively cover the adjacent two rows of battery packs 400, and heat exchange media are disposed inside the press-fixing assemblies 500.

The pressing assembly 500 may extend along the second direction Y and be disposed between two adjacent battery packs 400, and the pressing assembly 500 is disposed above the edges of the adjacent battery packs 400 along the first direction X, above the end caps of the respective battery cells 20 of the battery packs 400, and fixedly connects the adjacent battery packs 400. Illustratively, the press-fit assembly 500 is disposed above the edges of the first row of battery packs 400 and above the edges of the second row of battery packs 400.

The press-fixing assembly 500 may be disposed between every two adjacent battery packs 400, so that all the battery packs 400 are sequentially connected and fixed to form an integral large module, and the structural strength of the battery 100 is enhanced. The press-fixing assembly 500 may be disposed at the edges of the battery pack 400 at opposite sides in the first direction X, or the press-fixing assembly 500 may not be disposed. For example, the press-fixing assembly 500 may not be provided to the left side of the leftmost battery pack 400 and the right side of the rightmost battery pack 400.

The battery 100 may further include a battery case in which the battery pack 400 is placed in the case 30. The case 30 includes a bottom plate 61 and a side plate 62 disposed along a circumferential direction of the bottom plate 61, and the press-fixing assembly 500 is disposed at a side of the battery pack 400 facing away from the bottom plate 61, and an end of the press-fixing assembly 500 along the second direction Y may be connected with the side plate 62 of the case, for example, by means of a buckle, a bolt, or the like, to further strengthen the structural strength of the battery 100. Of course, the press-fixing assembly 500 may be connected only above the battery pack 400 without being connected to the case.

At least a portion of the press-fit assembly 500 is hollow in interior to accommodate a heat exchange medium. The heat exchange medium can be water, glycol or other liquid, the heat exchange medium can circulate through an external connecting pipeline, the temperature can be adjusted, and when the temperature of the battery cell 20 is too high, the pressing assembly 500 can cool the battery cell 20; when the temperature of the battery cell 20 is too low, the press-fixing assembly 500 can insulate the battery cell 20 and improve the cycle performance of the battery 100.

Of course, the pressing assembly 500 may also have a closed pipe structure, i.e. the heat exchange medium inside the pressing assembly 500 cannot circulate. For example, the heat exchange medium is water, glycol, and other liquids, the vaporization temperature of the heat exchange medium is matched with the thermal management required temperature of the battery cells 20, and when a part of the battery cells 20 generate high temperature due to overcurrent, the vaporization temperature of the liquid is matched with the thermal management required temperature of the battery cells 20. When a part of the battery cells 20 generate high temperature due to overcurrent, the liquid nearby the battery cells can quickly gasify and take away part of heat, and the gas can be condensed when being diffused to other colder battery cells 20, and simultaneously, the heat is released to achieve the purpose of uniform heating. The heat exchange medium can also be a phase-changeable solid, and under the action of certain temperature and pressure, the solid is changed from one phase to another, for example, when a certain part of the battery cells 20 generate high temperature due to overcurrent, the heat exchange medium which is in a solid state nearby can be subjected to phase change, so that part of heat is taken away by liquid, and the liquid is subjected to phase change again to become a solid state when being diffused to the positions of other colder battery cells 20, thereby achieving the purpose of uniform heating.

In the above-described scheme, the press-fixing members 500 connect the battery packs 400 to each other, press the adjacent battery packs 400, and enhance the mechanical strength of the battery 100, thereby improving the stability of the battery 100. Meanwhile, the heat exchange medium is disposed inside the press-fixing assembly 500, and the heat exchange of the battery cells 20 can be performed through the heat exchange medium, so that the battery cells 20 can work at a proper temperature, thereby improving the cycle performance of the battery 100. The press-fixing assembly 500 of the embodiment of the application integrates two functions of connecting and fixing the adjacent battery packs 400 and exchanging heat with the battery cells 20, and does not need to separately arrange a heat management component on the same side surface of the battery arrangement layering structure, thereby simplifying the structure, saving the space and improving the energy density of the battery 100.

Fig. 6 is a schematic structural diagram of a press-fixing assembly according to some embodiments of the present application.

As shown in fig. 6, in some embodiments, the press-fit assembly 500 includes a press tube 51 and a blocking member 52, the press tube 51 extending in the second direction Y, the heat exchange medium being disposed in the press tube 51; two blocking pieces 52 are provided at opposite ends of the crimp tube 51 in the second direction Y, respectively.

The pressure pipe 51 is used for storing heat exchange medium, and the blocking piece 52 is used for blocking the heat exchange medium inside the pressure pipe 51. The blocking member 52 may be connected to the pressure tube 51 by means of a snap fit such as an interference fit, a bolt lock, or welding. Illustratively, the pressing tube 51 is in a hollow cuboid shape, two ends of the pressing tube 51 are provided with openings, and the inner wall of the blocking piece 52 wraps the outer wall of the end part of the pressing tube 51 to seal the openings of the pressing tube 51.

In the above scheme, the sealing performance of the pressing assembly 500 is improved by sealing the pressing pipe 51 through the blocking piece 52. In addition, the pressing assemblies 500 of the embodiment of the application are not required to be connected and are independently arranged, so that a connecting pipe is omitted, and the production cost of the battery 100 is reduced.

FIG. 5 is a partial schematic view of a battery provided in some embodiments of the application; fig. 6 is a schematic structural diagram of a press-fixing assembly according to some embodiments of the present application.

Referring to fig. 5 and 6 in combination, in some embodiments, a reinforcing rib 53 is disposed on a side of the pressure tube 51 facing away from the battery pack 400.

The reinforcing ribs 53 and the crimp tube 51 may be manufactured by an integral molding process. The reinforcing ribs 53 may extend in the second direction Y, or may extend in the first direction X or any other direction. The number of the reinforcing ribs 53 may be one or more.

The reinforcing ribs 53 can enhance the overall structural strength of the crimp tube 51, improve its bending and compression resistance, and help protect the battery pack 400 from external impact or compression. Meanwhile, the reinforcing ribs 53 can also improve heat management to some extent, and by providing the reinforcing ribs 53 on the pressure pipe 51, heat conduction and heat dissipation can be improved, which helps to maintain the battery 100 operating in an appropriate temperature range.

In some embodiments, the stiffener 53 extends in the second direction Y.

That is, the reinforcing ribs 53 extend in the longitudinal direction of the crimp tube 51, increasing the length of the reinforcing ribs 53, and further improving the structural strength of the crimp tube 51. The length of the reinforcing rib 53 in the second direction Y may be equal to the length of the crimp tube 51 in the second direction Y. The length of the reinforcing ribs 53 in the second direction Y may also be smaller than the length of the crimp tube 51 in the second direction Y so that the end of the crimp tube 51 is connected with the blocking member 52.

In some embodiments, the reinforcing rib 53 includes a first sub-rib 531 and two second sub-ribs 532, the two second sub-ribs 532 being disposed on opposite sides of the pressing pipe 51 in the first direction X, respectively, the first sub-rib 531 being disposed between the two second sub-ribs 532.

The first sub-bead 531, the second sub-bead 532 and the third sub-bead all extend along the second direction Y, the first sub-bead 531 may be disposed at a middle portion of the pressing tube 51, and the second sub-bead 532 is disposed at an edge portion of the pressing tube 51. The reinforcing ribs 53 are in a shape like a Chinese character 'shan', and the rigidity of the pressure pipe 51 is further improved and the deformation resistance strength is improved by the cooperation of the first sub-ribs 531 and the two second sub-ribs 532.

In some embodiments, the closure member 52 is removably disposed at the end of the crimp tube 51.

The blocking member 52 may be detachably connected to the end of the crimp tube 51 by means of a snap fit, interference fit, or the like. If the crimp tube 51 or the closure member 52 is damaged, the crimp tube 51 or the closure member 52 may be replaced individually without the need to replace the entire crimp tube 51 assembly. If the heat exchange medium in the pressure pipe 51 needs to be replaced, the plugging piece 52 can be directly detached, so that the replacement of the heat exchange medium is facilitated.

In the above scheme, the plugging piece 52 is detachably arranged at the end part of the pressing pipe 51, so that damaged parts can be conveniently maintained and replaced, and the cost is reduced.

Fig. 5 is a partial schematic view of a battery provided in some embodiments of the application.

As shown in fig. 5, in some embodiments, the press-fit assembly 500 is bonded to the battery pack 400 by a bond paste layer 54.

A connection paste may be coated on the bottom of the press-fixing assembly 500 and then attached to the battery pack 400, and the connection paste is cured to form the connection paste layer 54. The adhesive of the connection adhesive layer 54 may be epoxy resin, acrylic resin, silicone rubber, polyurethane rubber, or the like.

In the above-mentioned scheme, press-fixing assembly 500 is adhered to battery pack 400 through connection glue layer 54, and is simple and easy to install, and can improve the production efficiency of battery 100.

In some embodiments, the connection glue layer 54 is a thermally conductive glue layer.

The adhesive layer 54 is made of a heat conductive adhesive such as silicone rubber, polyurethane, epoxy resin, or acrylic. By selecting the connection glue layer 54 that can conduct heat, the heat of the battery cell 20 can be transferred to the press-fixing assembly 500 more quickly, so that the heat exchange efficiency of the battery 100 is improved.

Fig. 7 is a schematic cross-sectional view of a crimp tube according to some embodiments of the present application.

As shown in fig. 7, in some embodiments, the outer surface of the press-fit assembly 500 is wrapped with an insulating layer 55.

The insulating layer 55 may be made of an insulating material such as polyvinyl chloride, polyethylene, polypropylene, polytetrafluoroethylene, or the like. If the pressing assembly 500 is made of a metal material, the insulating layer 55 is wrapped on the outer side of the pressing assembly 500, so that the electric leakage of the battery 100 can be prevented to a certain extent, and the reliability of the battery 100 can be improved.

In some embodiments, the first direction X is the length direction of the battery cell 20, and the second direction Y is the width direction of the battery cell 20.

In the above-mentioned scheme, the plurality of battery cells 20 of each row of the battery packs 400 are respectively and sequentially arranged along the width direction of the battery cells 20, so that the connection between the battery cells 20 is facilitated, and the operation of the battery packs 400 is facilitated. In addition, the press-fixing assembly 500 also extends along the width direction of the battery cell 20, and more press-fixing assemblies 500 may be disposed, further improving the overall strength and heat conductive performance of the battery 100.

In a second aspect, an embodiment of the present application further provides an electrical device, including the battery 100 of any one of the foregoing embodiments, where the battery 100 is configured to provide electrical energy.

According to some embodiments of the present application, there is provided a battery 100, the battery 100 including a battery pack 400 and a press-fixing assembly 500, a plurality of rows of battery packs 400 being sequentially arranged in a first direction X, each row of battery packs 400 including a plurality of battery cells 20 being sequentially arranged in a second direction Y and electrically connected to each other; the press-fixing assemblies 500 are disposed on the end caps of the battery cells 20 of the battery packs 400, and the press-fixing assemblies 500 respectively cover the adjacent two rows of battery packs 400, and heat exchange media are disposed inside the press-fixing assemblies 500. The pressing assembly 500 comprises a pressing pipe 51 and a blocking piece 52, the pressing pipe 51 extends along a second direction Y, and a heat exchange medium is arranged in the pressing pipe 51; two blocking pieces 52 are provided at opposite ends of the crimp tube 51 in the second direction Y, respectively.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (11)

1.A battery, comprising:

The battery packs are sequentially arranged along a first direction, and each row of battery packs comprises a plurality of battery cells which are sequentially arranged and electrically connected with each other along a second direction; wherein the first direction and the second direction are intersected;

The pressing and fixing assembly is arranged on the end cover of the battery unit of the battery pack, and covers two adjacent rows of the battery packs respectively, and a heat exchange medium is arranged in the pressing and fixing assembly.

2. The battery of claim 1, wherein the press-fit assembly comprises:

A pressure tube extending in a second direction, the heat exchange medium being disposed in the pressure tube;

the two plugging pieces are respectively arranged at two opposite ends of the pressing pipe along the second direction.

3. The battery according to claim 2, wherein a side of the pressure tube facing away from the battery pack is provided with a reinforcing rib.

4. A battery according to claim 3, wherein the reinforcing bars extend in the second direction.

5. A battery according to claim 3, wherein the reinforcing rib comprises a first sub-rib and two second sub-ribs, the two second sub-ribs being provided on opposite sides of the crimp tube in the first direction, respectively, the first sub-rib being provided between the two second sub-ribs.

6. The battery of claim 2, wherein the plug is removably disposed at an end of the crimp tube.

7. The battery of any of claims 1-6, wherein the compression assembly is bonded to the battery pack by a bond paste.

8. The battery of claim 7, wherein the connection glue layer is a thermally conductive glue layer.

9. The battery of any one of claims 1-6, wherein an outer surface of the compression assembly is wrapped with an insulating layer.

10. The battery of any one of claims 1-6, wherein the first direction is a length direction of the battery cell and the second direction is a width direction of the battery cell.

11. An electrical device comprising a battery according to any one of claims 1-10 for providing electrical energy.