CN221427847U

CN221427847U - Temperature adjusting plate, battery and electricity utilization device

Info

Publication number: CN221427847U
Application number: CN202420896991.5U
Authority: CN
Inventors: 付春朋; 陈昌燕; 李静如; 魏家崴; 史松君
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2024-04-28
Filing date: 2024-04-28
Publication date: 2024-07-26
Anticipated expiration: 2034-04-28

Abstract

The application provides a temperature regulating plate, a battery and an electric device. The temperature regulating plate is provided with a channel for flowing a temperature regulating medium, and the side surface of the temperature regulating plate is provided with: the heat conduction plane is used for contacting the surface with the largest area of the first battery cell; the groove is used for enabling part of the second type of battery monomer to be suitable for being arranged in fit contact, and the groove extends along the height direction of the temperature regulating plate. A heat conduction plane is arranged on the side surface of the temperature regulating plate and used for contacting the surface with the largest area of the first type of battery cells so as to regulate the temperature of the first type of battery cells; and a groove is formed in the side face of the temperature regulating plate, so that part of the second battery monomer is placed in fit contact, and the second battery monomer is subjected to temperature regulation, so that the temperature regulation of the first battery monomer and the second battery monomer can be realized simultaneously when the temperature regulating plate is applied to a battery, and the thermal management effect of the battery using the first battery monomer and the second battery monomer is improved.

Description

Temperature adjusting plate, battery and electricity utilization device

Technical Field

The application belongs to the technical field of batteries, and particularly relates to a temperature adjusting plate, a battery and an electric device.

Background

Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages of the electric vehicles. For electric vehicles, battery technology is an important factor in the development of the electric vehicles.

When the battery is used, the battery monomer in the battery is often required to be heated or cooled and adjusted in temperature so as to ensure that the battery monomer is at a good working temperature. With the increase of the cases of mixed use of multiple types of battery cells, the heat management component of the current battery is often designed according to the heat dissipation requirement of the same type of battery cells, and the heat management effect of the battery mixed with multiple types of battery cells is often poor.

Disclosure of utility model

The embodiment of the application aims to provide a temperature regulating plate, a battery and an electric device, which are suitable for regulating the temperature of batteries using various types of battery monomers.

In a first aspect, an embodiment of the present application provides a temperature adjusting plate, in which a channel through which a temperature adjusting medium flows is provided, and a side surface of the temperature adjusting plate is provided with:

The heat conduction plane is used for contacting the surface with the largest area of the first battery cell;

The groove is used for enabling part of the second type of battery monomer to be suitable for being arranged in fit contact, and the groove extends along the height direction of the temperature regulating plate.

In the technical scheme of the embodiment of the application, a heat conduction plane is arranged on the side surface of the temperature regulating plate and used for contacting the large surface of the first type of battery monomer so as to regulate the temperature of the first type of battery monomer; and a groove is formed in the side face of the temperature regulating plate, so that part of the second battery monomer is placed in fit contact, and the second battery monomer is subjected to temperature regulation, so that the temperature regulation of the first battery monomer and the second battery monomer can be realized simultaneously when the temperature regulating plate is applied to a battery, and the thermal management effect of the battery using the first battery monomer and the second battery monomer is improved.

In some embodiments, the side surface of the temperature regulating plate is provided with a plurality of heat conducting planes at intervals along the length direction, and a groove is arranged between two adjacent heat conducting planes.

The heat conduction planes are arranged to regulate the temperature of the first battery monomers, grooves are formed between two adjacent heat conduction planes, and under the application condition, the first battery monomers and the second battery monomers are convenient to exchange heat.

In some embodiments, the bottom of the groove is provided with a recessed groove.

The bottom of the groove is provided with a concave groove so as to reduce the contact area between the inner surface of the groove and the second battery monomer, reduce the heat exchange efficiency of the temperature regulating plate and the second battery monomer, regulate and control the temperature of the second battery monomer, and further better stabilize the heat management requirements of the first battery monomer and the second battery monomer.

In some embodiments, the second type of battery cell is cylindrical, and the wall surfaces on opposite sides of the at least one groove are provided with arc surfaces for adapting to the side surfaces of the second type of battery cell.

The arc-shaped surfaces are arranged on the wall surfaces of the two opposite sides of the groove so as to be fit with the side surfaces of the cylindrical second battery monomer, and then the cylindrical second battery monomer is subjected to heat management.

In some embodiments, the arcuate surface has an angle in the range of 30 ° -90 °.

The angle of the arc-shaped surface is set to be 30-90 degrees, and correspondingly, the part of the second battery monomer extending into the groove is only half or less, so that the temperature of the second battery monomer can be better regulated and controlled, the second battery monomer can be conveniently extended into the groove, and the installation of the second battery monomer is facilitated.

In some embodiments, the arcuate surface has an angle in the range of 45 ° -80 °.

The angle of the arc-shaped surface is set to be 45-80 degrees so that the side surface of the second battery cell extends into the groove to be attached to the arc-shaped surface, the second battery cell is convenient to install, and the sum of the central angles of the inner surface of the groove and the attaching part of the side surface of the second battery cell is 90-160 degrees so as to better regulate and control the temperature of the second battery cell.

In some embodiments, the plurality of grooves are formed on one side of the temperature adjusting plate, the channels extend along the length direction of the temperature adjusting plate, and the plurality of concave grooves are gradually reduced in width in the direction parallel to the length direction.

The temperature adjusting medium can exchange heat with each battery monomer flowing through the temperature adjusting plate in the flowing process, so that the temperature of the temperature adjusting medium also changes, the heat exchange efficiency with the battery monomers correspondingly decreases, the widths of the plurality of concave grooves are gradually reduced, the heat exchange area of the temperature adjusting medium and the second battery monomers can be gradually increased, and the heat exchange efficiency of the second battery monomers is further improved, so that the temperatures of the plurality of second battery monomers can be better regulated and controlled.

In some embodiments, the wall surfaces of opposite sides of the at least one groove are arranged to be a plane perpendicular to the length direction of the temperature regulating plate, and the second type of battery cells are cuboid.

The wall surfaces on two opposite sides of the groove are set to be plane and perpendicular to the length direction of the temperature regulating plate, so that the second type battery monomer of the cuboid can be conveniently inserted, and thermal management can be carried out on the second type battery monomer of the cuboid.

In some embodiments, the inner surface of the groove is entirely provided with an arc surface, and the second type of battery cell is cylindrical.

The inner surface of the groove is integrally provided with an arc surface so as to be fit with the side surface of the cylindrical second battery monomer, so that the cylindrical second battery monomer is subjected to heat management, and the temperature regulation efficiency of the second battery monomer is improved.

In some embodiments, the opposite sides of the temperature-adjusting plate are respectively provided with a heat conduction plane and a groove, and the grooves on the opposite sides of the temperature-adjusting plate are oppositely arranged along the thickness direction of the temperature-adjusting plate.

The heat conduction plane and the groove are arranged on the two opposite sides of the temperature adjusting plate, so that the two sides of the temperature adjusting plate can exchange heat with the battery monomers, the utilization efficiency of the temperature adjusting plate is improved, and the heat conduction plate is applied to the battery and can reduce occupied space.

In some embodiments, a plurality of partition boards are arranged in the channel, each partition board extends along the height direction of the temperature regulating board, in two adjacent partition boards, the top end of one partition board is arranged at intervals with the top of the channel, and the bottom end of the other partition board is arranged at intervals with the bottom of the channel.

Through the structure, the length of the channel can be increased, so that the temperature-adjusting medium better passes through the heat conduction plane and the side wall where the groove is located, and the heat exchange efficiency is improved.

In a second aspect, an embodiment of the present application provides a battery, including a first type of battery monomer, a second type of battery monomer, and a temperature adjustment plate as described in the foregoing embodiment, where a heat conduction plane of the temperature adjustment plate is attached to a surface of the first type of battery monomer with a largest area, and a portion of the second type of battery monomer extends into the groove.

The battery not only can realize the mixed use of the first type battery monomer and the second type battery monomer, but also can well adjust the temperature of the first type battery monomer and the second type battery monomer, so that the first type battery monomer and the second type battery monomer have good working temperatures.

In some embodiments, the opposite sides of the first type of battery cell are respectively provided with a temperature adjusting plate, and the opposite sides of the first type of battery cell are respectively attached to the heat conduction planes of the two temperature adjusting plates, and the second type of battery cell is located between the two adjacent temperature adjusting plates.

Through the structural design, the heat exchange efficiency of the first type of battery monomer can be improved, so that the temperature of the first type of battery monomer can be better regulated.

In some embodiments, the grooves on the opposite inner sides of the two adjacent temperature regulating plates correspond in position, and one or two second type battery cells are accommodated between the corresponding two grooves on the two adjacent temperature regulating plates.

The structural design can be adapted to the second battery monomer with smaller installation size, and the second battery monomer with larger installation size can be also used for better adapting to the requirement of the battery on the second battery monomer.

In some embodiments, along the thickness direction of the temperature regulating plates, the widths occupied by the second type of battery cells installed at the corresponding two grooves on the two adjacent temperature regulating plates are D, and the thicknesses of the first type of battery cells are T, so that T is less than or equal to D is less than or equal to 2T.

The structure can conveniently determine the size of the second type of battery monomer used by the battery applying the temperature regulating plate, and is convenient for the type selection and use of the second type of battery monomer.

In some embodiments, the first type of cell generates a greater amount of heat than the second type of cell upon discharge at the same rate.

The large surface of the first type of battery monomer is in contact with the heat conduction plane, the heat exchange efficiency of the temperature regulating plate and the first type of battery monomer is higher, the first type of battery monomer uses the battery monomer with larger heating value, and the temperatures of the first type of battery monomer and the second type of battery monomer in the battery can be balanced, so that the first type of battery monomer and the second type of battery monomer are both at good working temperatures.

In some embodiments, the first type of cell is a ternary lithium cell and the second type of cell is a lithium iron phosphate cell.

The battery with the structure can realize good balance of energy density and cost of the battery, and has better charge and discharge performance.

In a third aspect, an embodiment of the present application provides an electrical device, including a battery as described in the above embodiment.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the drawings used in the embodiments or exemplary technical descriptions, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for those skilled in the art.

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

FIG. 4 is a schematic perspective view of a temperature regulating plate according to some embodiments of the present application;

FIG. 5 is a schematic top view of the temperature control plate of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a schematic top view of a temperature regulating plate and battery cell combination according to some embodiments of the present application;

Fig. 8 is a schematic top view of a temperature adjustment plate and battery cell combination according to other embodiments of the present application;

fig. 9 is a schematic top view of a temperature adjustment plate and battery cell combination according to still other embodiments of the present application;

Fig. 10 is a schematic top view of a temperature regulating plate and battery cell combination according to still other embodiments of the present application;

FIG. 11 is a schematic top view of a temperature regulating plate and battery cell combination according to other embodiments of the present application;

Fig. 12 is a schematic top view of a temperature regulating plate and battery cell combination according to still other embodiments of the present application;

FIG. 13 is a schematic top view of a thermostat plate according to further embodiments of the present application;

fig. 14 is a schematic top view of a temperature regulating plate according to still other embodiments of the present application;

fig. 15 is a schematic top view of a temperature regulating plate according to still other embodiments of the present application.

Wherein, each reference numeral in the figure mainly marks:

1000-vehicle; 1001-battery; 1002-a controller; 1003-motor;

100-box body; 101-a first part; 102-a second part;

200-battery cells; 21-a first type of cell; 22-a second type of battery cell; 221-cylindrical battery cell; 222-rectangular parallelepiped battery cells;

300-a temperature regulating plate; 301-channel; 302-a separator; 31-a heat conduction plane; 32-grooves; 321-a first groove; 322-second groove; 320-a concave groove;

And N-the flowing direction of the temperature regulating medium.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit 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 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.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Reference herein 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments in any suitable manner.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two). The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, 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 explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of embodiments of the application, when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element unless explicitly stated and limited otherwise. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In describing embodiments of the present application, the term "adjacent" refers to being in close proximity unless explicitly stated and defined otherwise. For example, for the three components a ₁、A₂ and B, the distance between a ₁ and B is greater than the distance between a ₂ and B, then a ₂ is closer to B than a ₁, i.e., a ₂ is adjacent to B, which can be said to be adjacent to a ₂. For another example, when there are multiple C parts, each C part being C ₁、C₂……C_N, when one of the C parts, such as C ₂, is closer to the B part than the other C parts, then B is adjacent to C ₂, also known as C ₂ is adjacent to B.

The battery cell in the embodiment of the application comprises, but is not limited to, 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, and the like. The shape of the battery cell includes, but is not limited to, a cylinder, a flat body, a rectangular parallelepiped, or other shape, etc. The battery cells are typically packaged, including but not limited to, being divided into: cylindrical battery cells, prismatic battery cells, and pouch battery cells.

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, a battery pack, or the like. The battery generally includes a case for enclosing one or more battery cells. The case can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells to some extent. In some cases, the battery cells may be used directly, i.e., the battery may not include a case, which is not limited herein.

In the battery, when the number of the battery cells is multiple, the battery cells can be connected in series or in parallel, and the series-parallel connection refers to that the battery cells are connected in series or in parallel. The plurality of battery monomers can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery monomers is accommodated in the box body; of course, the battery can also be in a form of a battery module formed by connecting a plurality of battery monomers in series or parallel or series-parallel connection, and then connecting a plurality of battery modules in series or parallel or series-parallel connection to form a whole body and accommodating the whole body in the box body. The battery may further include other structures, for example, a bus member for making electrical connection between the plurality of battery cells.

The battery cell in the embodiment of the application includes an electrode assembly and a case in which the electrode assembly is mounted to protect the electrode assembly through the case.

The electrode assembly, also called a cell, is a component for storing and releasing electric energy, and is composed of a positive electrode sheet, a negative electrode sheet and a separator. The electrode assembly operates primarily by means of metal ions moving between the positive and negative electrode sheets. The positive plate comprises a positive current collector and a positive active material layer, wherein the positive active material layer is coated on the surface of the positive current collector, a part of the positive current collector, which is not coated with the positive active material layer, protrudes out of the part, which is coated with the positive active material layer, of the positive current collector, and the part, which is not coated with the positive active material layer, is used as a positive electrode lug, or a metal conductor is welded and led out of the positive current collector to be used as the 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 part of the negative electrode current collector, which is not coated with the negative electrode active material layer, protrudes out of the part, which is coated with the negative electrode active material layer, of the negative electrode current collector, and the part, which is not coated with the negative electrode active material layer, is used as a negative electrode tab, or a metal conductor is welded and led out of the negative electrode current collector to be used as the 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 separator may be made of PP (Polypropylene) or PE (Polyethylene). The diaphragm is the insulating film of setting between positive plate and negative plate, and its main roles are: the positive electrode and the negative electrode are isolated, electrons in the battery cannot pass through freely, short circuit is prevented, and ions in the electrolyte can pass through freely between the positive electrode and the negative electrode, so that a loop is formed between the positive electrode and the negative electrode.

The energy density of the battery cell may be a volumetric energy density or a gravimetric energy density.

The battery cell may be a sodium ion chemical system battery cell, which is also referred to as a sodium ion battery cell, and the positive electrode material of the sodium ion chemical system battery cell is a sodium-containing positive electrode active material, including at least one of a layered structure of a sodium-containing positive electrode active material, a spinel structure of a sodium-containing positive electrode active material, or an olivine structure of a sodium-containing positive electrode active material. Sodium ion chemistry system battery cells include, but are not limited to: prussian blue derivative/hard carbon system, polyanion sodium ion conductor sodium vanadium phosphate (or sodium vanadium fluorophosphate, sodium vanadium fluorophosphate)/hard carbon system, transition metal oxide/hard carbon system and other battery monomers. The sodium-containing positive electrode active material includes at least one of a sodium-containing transition metal oxide, a sodium-containing polyanion compound, or a sodium-containing Prussian blue material. The battery cell may also be a lithium ion chemical system battery cell, also known as a lithium ion battery cell. The positive electrode material of the lithium ion chemical system battery cell is at least one of a lithium-containing positive electrode active material including a layered structure, a spinel structure, or an olivine structure, and may be a battery cell using a lithium-containing active material of an olivine structure as a main positive electrode material (for example, lithium iron phosphate, lithium manganese iron phosphate, or the like), a battery cell using a lithium-containing active material of a layered structure as a main positive electrode material, or the like (for example, lithium cobaltate, lithium nickelate, lithium-rich material, nickel cobalt manganese ternary material, manganese cobalt aluminum ternary material, or the like).

The ternary battery monomer is also called as ternary lithium battery monomer, and refers to a battery monomer in which a positive electrode active material of a pole piece in the battery monomer adopts a ternary positive electrode active material containing lithium. The lithium-containing ternary positive electrode active material includes at least one of lithium cobaltate, lithium nickelate, lithium-rich material, nickel cobalt manganese ternary material, and manganese cobalt aluminum ternary material.

The lithium iron phosphate battery monomer refers to a battery monomer in which positive active materials of pole pieces in the battery monomer adopt lithium iron phosphate positive active materials.

Under the low-temperature environment, the chemical reaction rate of the battery monomer can be reduced, so that the discharge capacity and the power output capacity of the battery monomer are reduced, the cruising ability of electric equipment is greatly reduced, and the user experience is influenced. The low temperature environment refers to the environment where the battery cells operate at a low temperature, for example, below 5 ℃, and may be referred to as a low temperature environment, for example, below-30 ℃, below-20 ℃, below-10 ℃, below-5 ℃, below 0 ℃, and the like.

When the battery cell is charged, the current converts the electrical energy into chemical energy through a chemical reaction between the electrolyte and the electrode, which is stored in the battery cell. And during discharge, chemical energy is converted into electrical energy for release. This energy conversion process is accompanied by energy loss and heat generation, which can lead to overheating of the battery cells if the heat is not efficiently dissipated inside the battery cells. Certain internal resistance exists in the battery cell, and resistance loss can be generated when current passes through the internal resistance, so that the battery cell generates heat. When the current is too high or the internal resistance is too high, heat generation inside the battery cells is increased, resulting in overheating of the battery cells. If the maximum voltage of the cell design is exceeded during charging or the cell voltage drops too low during discharging, overcharging or overdischarging of the cell can result. Overcharging or overdischarging can cause a chemical reaction inside the battery cell to run away, generating excessive heat, resulting in overheating of the battery cell.

Thus, the battery cells need to have a good temperature environment during the charging operation, and a thermal management member is provided to adjust the temperature of the battery cells. Currently, batteries often employ one type of cell, and thermal management components are often designed for a single type of cell. However, with multiple types of battery cell mix applications, the heat dissipation requirements of the different types of battery cells tend to be different, which makes it difficult for the current thermal management component to regulate the temperature of the battery for the multiple types of battery cell mix applications, resulting in poor thermal management of the battery for the multiple types of battery cells mix use.

In a low-temperature environment, at the initial stage of charging and discharging, the battery is often required to be heated by using a thermal management part to enable the battery monomer in the battery to reach the working temperature; in the normal charge and discharge process, heat dissipation is often required to be performed on the battery cells so as to keep the battery cells within the operating temperature range, and therefore, the heat management component in the battery dissipates heat from the battery cells most of the time. Thus, the design of thermal management components for batteries often mainly takes into account the heat dissipation requirements of the battery cells. Under the condition of the same charge-discharge multiplying power, the larger the heating value of the battery cells of different types is, the higher the heat dissipation requirement of the battery cells is. And once the battery cell is manufactured and molded, the heat dissipation requirement is often determined. The heat dissipation requirement of the battery cell can also be determined by setting the heat productivity of the battery cell under the condition of charge-discharge multiplying power.

Based on the above consideration, in order to solve the problem that the heat management effect is poor when a battery with a plurality of types of battery monomers is used, the embodiment of the application provides a temperature adjusting plate, by arranging a heat conduction plane and a groove on the side surface of the temperature adjusting plate, when the temperature adjusting plate is used, the heat conduction plane can be contacted with the large surface of a first type of battery monomer, a second type of battery monomer is arranged in the groove, and the inner surface of the groove is contacted with the side surface of the second type of battery monomer to respectively conduct heat exchange on the first type of battery monomer and the second type of battery monomer, so that the second type of battery monomer stretches into the depth of the groove according to the size of the designed groove to change the heat exchange efficiency of the inner surface of the second type of battery monomer and the groove, and further the temperature adjustment is conducted on the first type of battery monomer and the second type of battery monomer in an adaptive manner, and the heat management effect of a battery using the first type of battery monomer and the second type of battery monomer is improved.

The temperature regulating plate disclosed by the embodiment of the application can be applied to a battery, can also be applied to an electric device using a battery monomer or a battery as a power supply, and can also be applied to various energy storage systems using the battery monomer or the battery as an energy storage element, such as energy storage power supply systems of hydraulic power, firepower, wind power, solar power stations and the like. The power device may be, but is not limited to, a cell phone, a tablet, a notebook computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric automobile, 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, an embodiment of the present application provides an electric device, which is described by taking a vehicle as an example.

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 1001 is provided in the interior of the vehicle 1000, and the battery 1001 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 1001 may be used for power supply of the vehicle 1000, for example, the battery 1001 may be used as an operating power source of the vehicle 1000. The vehicle 1000 may also include a controller 1002 and a motor 1003, the controller 1002 being configured to control the battery 1001 to power the motor 1003, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the application, battery 1001 may be used not only as an operating power source for vehicle 1000, but also 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 1001 according to some embodiments of the present application. The battery 1001 includes a case 100 and a battery cell 200, and the battery cell 200 is accommodated in the case 100. The case 100 is used to provide an accommodating space for the battery cell 200, and the case 100 may have various structures. In some embodiments, the case 100 may include a first portion 101 and a second portion 102, the first portion 101 and the second portion 102 being overlapped with each other, the first portion 101 and the second portion 102 together defining an accommodating space for accommodating the battery cell 200. The second portion 102 may be a hollow structure with one end opened, the first portion 101 may be a plate-shaped structure, and the first portion 101 covers the opening side of the second portion 102, so that the first portion 101 and the second portion 102 together define an accommodating space; the first portion 101 and the second portion 102 may be hollow structures each having an opening at one side, and the opening side of the first portion 101 is engaged with the opening side of the second portion 102. Of course, the case 100 formed by the first portion 101 and the second portion 102 may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc. The plurality of battery cells 200 are placed in the box 100 formed by buckling the first portion 101 and the second portion 102 after being connected in parallel or in series-parallel.

Referring to fig. 3, in accordance with some embodiments of the present application, a battery 1001 is provided, including a temperature adjustment plate 300 and a plurality of battery cells 200, wherein the plurality of battery cells 200 includes a first type of battery cell 21 and a second type of battery cell 22. The temperature adjusting plate 300 is provided with a channel 301 for flowing a temperature adjusting medium, the side surface of the temperature adjusting plate 300 is provided with a heat conducting plane 31 and a groove 32, and the groove 32 is arranged along the height direction of the temperature adjusting plate 300. The heat conduction plane 31 of the temperature adjustment plate 300 is attached to the surface of the first type battery cell 21 with the largest area, and a part of the second type battery cell 22 extends into the groove 32 to be in contact with at least a part of the inner surface of the groove 32.

The temperature adjustment plate 300 is a flat structure for heat exchange with the battery cell 200, such as heat dissipation reduction of the battery cell 200 or heating of the battery cell 200. The temperature adjustment plate 300 may be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not particularly limited in the embodiment of the present application. The temperature adjustment plate 300 may be a water cooling plate, an oil cooling plate, or the like having a flow passage or channels therein. The flow channels in the temperature-regulating plate 300 may be integrally formed during the temperature-regulating plate forming process, or may be pipe structures provided in the temperature-regulating plate 300.

The channel 301 refers to a space provided in the temperature-adjusting plate 300 for the flow of the temperature-adjusting medium. The temperature adjusting medium refers to a fluid, such as difluoromethane, tetrafluoroethane, or the like, which can flow in the channel 301 of the temperature adjusting plate 300, and a liquid, such as water, oil, or the like, which can be used as a refrigerant.

Referring to fig. 3 to 6, the temperature adjusting plate 300 has a height direction, a length direction and a thickness direction, wherein X is the length direction of the temperature adjusting plate 300, Z is the height direction of the temperature adjusting plate 300, and Y is the thickness direction of the temperature adjusting plate 300. The sides of the temperature adjusting plate 300 are surfaces defined by the height direction Z and the length direction X of the temperature adjusting plate 300, and two sides of the temperature adjusting plate 300 are positioned at two ends of the thickness direction Y of the temperature adjusting plate 300, namely, the two sides define the thickness of the temperature adjusting plate 300.

The heat conduction plane 31 refers to a surface of the temperature adjustment plate 300 for contacting the first type battery cells 21 to exchange heat with the first type battery cells 21. The heat conduction plane 31 may be a part of a side surface of the temperature adjustment plate 300, so as to facilitate the processing and manufacturing of the temperature adjustment plate 300; of course, the heat conduction plane 31 may be a surface on a heat conduction member separately manufactured on a side surface of the temperature adjustment plate 300, for example, a heat conduction layer such as graphene is provided on the side surface of the temperature adjustment plate 300, and the surface of the heat conduction layer is used as the heat conduction plane 31 to better contact with a large surface of the first type battery cell 21 so as to exchange heat with the first type battery cell 21.

The groove 32 refers to a groove structure provided on the side of the temperature-adjusting plate 300. The grooves 32 extend along the height direction of the temperature adjusting plate 300, which means that the length direction of the grooves 32 is parallel to the height direction of the temperature adjusting plate 300, so that when the second type battery cells 22 are placed in the grooves 32, the inner surfaces of the grooves 32 at least partially contact with the side surfaces of the second type battery cells 22 to exchange heat with the second type battery cells 22.

Plural means two or more. The battery cell 200 is the smallest energy storage and release unit in the battery 1001, and the battery cell 200 can be manufactured in a variety of different types depending on the materials used, the design dimensions, and the shape being manufactured. The first type of battery cell 21 is one type of battery cell 200, and the second type of battery cell 22 refers to another type of battery cell 200 that is different from the first type of battery cell 21.

The largest-area surface refers to the largest-area surface of the surfaces of the battery cell 200, such as the largest-area side or other surface of the battery cell 200. The surface of the battery cell 200 having the largest area is hereinafter referred to as the large surface of the battery cell 200. For example: the rectangular parallelepiped battery cells 200 are generally two in large surface area, and are located on opposite ends of the thickness direction of the battery cells 200. Hereinafter, unless otherwise specified, the large surface of the battery cell 200 or the surface of the battery cell 200 having the largest area refers to one of the large surfaces of the rectangular parallelepiped battery cell 200 in the rectangular parallelepiped battery cell 200. For a cylindrical cell 200, its large face is generally the side of the cell 200. The hexagonal prism-shaped battery cell 200 has a large surface that is a side surface of the hexagonal prism-shaped battery cell 200, and the hexagonal prism-shaped battery cell 200 refers to one of the side surfaces of the hexagonal prism-shaped battery cell 200 unless otherwise specified. The heat conduction plane 31 is in contact with the large surface of the first type battery cell 21, so that the heat conduction plane 31 can perform heat exchange with the first type battery cell 21 better to adjust the temperature of the first type battery cell 21.

The temperature-adjusting medium flows through the channels 301 of the temperature-adjusting plate 300, and exchanges heat with the battery cells 200 in contact with the side walls of the temperature-adjusting plate 300 through the side walls. Most of the time when the battery 1001 works, the temperature-adjusting medium dissipates heat from the battery cell 200, so that the battery cell 200 is in a good working temperature range; however, the temperature adjusting medium may not be limited to heat dissipation of the battery cell 200, for example, in a low temperature environment, the temperature adjusting medium may heat the battery cell 200, especially in a low environment temperature, and in the initial stage of operation of the battery 1001, the temperature adjusting medium may heat the battery cell 200 to make the battery cell 200 reach the operating temperature.

Because the heat conduction plane 31 of the temperature adjusting plate 300 can exchange heat with the first type of battery monomer 21, the inner surface of the groove 32 of the temperature adjusting plate 300 can exchange heat with the second type of battery monomer 22, so that the temperature adjusting plate 300 can simultaneously perform heat management on the two different types of battery monomers 200, namely the first type of battery monomer 21 and the second type of battery monomer 22, so as to well adjust the temperatures of the first type of battery monomer 21 and the second type of battery monomer 22, and the first type of battery monomer 21 and the second type of battery monomer 22 have good working temperatures, thereby well realizing the mixed use of the first type of battery monomer 21 and the second type of battery monomer 22.

Referring to fig. 3, some embodiments of the present application may also separately provide a temperature adjustment plate 300. According to some embodiments of the present application, there is provided a temperature regulating plate 300, wherein a channel 301 for flowing a temperature regulating medium is provided in the temperature regulating plate 300, and a heat conducting plane 31 and a groove 32 are provided on a side surface of the temperature regulating plate 300, wherein the heat conducting plane 31 is used for contacting a surface with the largest area of the first type of battery cells 21; the grooves 32 are used for fitting and contacting the second battery cells 22, and the grooves 32 extend along the height direction of the temperature adjusting plate 300.

In the technical scheme of the embodiment of the application, a heat conduction plane 31 is arranged on the side surface of the temperature regulating plate 300 and is used for contacting the large surface of the first type of battery cell 21 so as to regulate the temperature of the first type of battery cell 21; and a groove 32 is arranged on the side surface of the temperature adjusting plate 300 so that part of the second battery monomer 22 is placed in fit contact to adjust the temperature of the second battery monomer 22, thereby being applied to the battery 1001, realizing the temperature adjustment of the first battery monomer 21 and the second battery monomer 22 at the same time and improving the thermal management effect of the battery 1001 using the first battery monomer 21 and the second battery monomer 22.

Referring to fig. 3 to 5, in some embodiments, a plurality of heat conducting planes 31 are disposed on a side surface of the temperature adjusting plate 300 along a length direction X at intervals, and a groove 32 is disposed between two adjacent heat conducting planes 31.

The side surfaces of the temperature-adjusting plate 300 are provided with a plurality of heat conduction planes 31 at intervals along the length direction X, which means that: one side surface of the temperature-adjusting plate 300 is provided with a plurality of heat conduction planes 31, and the heat conduction planes 31 are arranged along the length direction X of the temperature-adjusting plate 300 at intervals.

Plural means two or more. A groove 32 is arranged between two adjacent heat conduction planes 31, and when two heat conduction planes 31 are arranged on the side surface of the temperature adjusting plate 300, one corresponding groove 32 is arranged; in the case that the number of the heat conduction planes 31 provided at the side of the temperature adjustment plate 300 is three, the corresponding grooves 32 are provided in two, that is, the number of the grooves 32 at the side of the temperature adjustment plate 300 is one less than the number of the heat conduction planes 31.

The plurality of heat conduction planes 31 are provided to regulate the temperature of the plurality of first-type battery cells 21, and the grooves 32 are provided between the two adjacent heat conduction planes 31, so that the first-type battery cells 21 and the second-type battery cells 22 can exchange heat conveniently under the application condition.

Referring to fig. 13, in some embodiments, the number of grooves 32 may be equal to the number of heat conduction planes 31 on the side of the temperature adjustment plate 300, for example, the grooves 32 and the heat conduction planes 31 may be alternately arranged.

Referring to fig. 14, in some embodiments, the number of grooves 32 may be greater than the number of heat conductive planes 31 on the side of the temperature adjustment plate 300, such as one heat conductive plane 31 between two adjacent grooves 32.

Referring to fig. 15, in some embodiments, a plurality of heat conduction planes 31 may be further disposed between two adjacent grooves 32 on the side surface of the temperature adjustment plate 300.

Referring to fig. 15, in some embodiments, a plurality of grooves 32 may be further disposed between two adjacent heat conducting planes 31 on the side surface of the temperature adjusting plate 300.

Referring to fig. 15, in some embodiments, one or more heat conductive planes 31 may be disposed along a section of the length direction X of the temperature adjustment plate 300 on a side of the temperature adjustment plate 300, and one or more grooves 32 may be disposed along a section of the length direction X of the temperature adjustment plate 300.

Referring to fig. 3, 5, 8 and 9, in some embodiments, the bottom of the recess 32 is provided with a recess 320.

The bottom of the groove 32 refers to the bottom of the groove 32 that is directed in the depth direction away from the mouth of the groove 32. The depth direction of the groove 32 is parallel to the thickness direction Y of the temperature adjusting plate 300 and is a direction extending from one side of the temperature adjusting plate 300 where the groove 32 is located toward the other side of the temperature adjusting plate 300.

The concave groove 320 refers to a groove structure provided at the bottom of the groove 32. The concave groove 320 may be provided in the shape of an arc groove, a square groove, a triangular groove, etc., which is not limited only herein.

The second battery cell 22 is placed in the groove 32, and the inner surface of the groove 32 is in contact with the side surface of the second battery cell 22, so that the temperature-adjusting medium in the temperature-adjusting plate 300 is in heat exchange with the second battery cell 22 through the inner surface of the groove 32. The bottom of the groove 32 is provided with the concave groove 320, and then the inner surface of the concave groove 320 is spaced from the side surface of the second battery monomer 22, so that the contact area between the inner surface of the groove 32 and the second battery monomer 22 can be reduced, and the contact area between the inner surface of the groove 32 and the second battery monomer 22 can be controlled through the arrangement of the width of the concave groove 320, so that the heat exchange efficiency of the temperature regulating plate 300 and the second battery monomer 22 can be controlled, and the first battery monomer 21 and the second battery monomer 22 can be better at respective good working temperatures to a certain extent.

The bottom of the groove 32 is provided with the concave groove 320, so as to reduce the contact area between the inner surface of the groove 32 and the second type battery cell 22, reduce the heat exchange efficiency of the temperature adjusting plate 300 and the second type battery cell 22, and adjust and control the temperature of the second type battery cell 22, thereby better stabilizing the thermal management requirements of the first type battery cell 21 and the second type battery cell 22.

Referring to fig. 3, 8 and 9, in some embodiments, the plurality of grooves 32 are formed on one side of the temperature adjustment plate 300, so that the second battery cells 22 are disposed in each groove 32, so that the temperature adjustment plate 300 can adjust the temperature of the plurality of second battery cells 22.

Referring to fig. 3, 8 and 9, in some embodiments, the channels 301 extend along the length direction X of the temperature-adjusting plate 300, so that the channels 301 may be arranged conveniently, and the length of the channels 301 in the temperature-adjusting plate 300 may be longer, so that the path through which the temperature-adjusting medium flows in the temperature-adjusting plate 300 may be longer, so that the temperature-adjusting medium may better exchange heat with the battery cells 200 on the side of the temperature-adjusting plate 300.

Referring to fig. 3 to 5, in some embodiments, the walls of the opposite sides of the recess 32 are provided with arcuate surfaces, and accordingly, the second battery cell 22 is cylindrical, and the arcuate surfaces are adapted to fit the side surfaces of the second battery cell 22.

The wall surfaces of opposite sides of the groove 32 refer to portions of opposite sides of the inner surface of the groove 32.

Arcuate surfaces are provided on the opposite sides of the recess 32, the arcuate surfaces having a radius equal to the radius of the cylindrical second battery cell 22 to accommodate the lateral fit of the cylindrical second battery cell 22 for thermal management of the cylindrical second battery cell 22.

Referring to fig. 3-5, in some embodiments, the angle b of the arcuate surface ranges from 30 ° -90 °, such as 30 ° (degrees), 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, 65 °, 70 °, 75 °, 80 °, 85 °, 90 °, etc. The angle b of the arc surface refers to the central angle of the circle where the arc surface occupies.

The angle b of the arc surface is set to be 30-90 degrees, the sum of the central angles of the joint parts of the inner surface of the groove 32 and the side surfaces of the second battery monomers 22 is 60-180 degrees, and the part of the second battery monomers 22 extending into the groove 32 is only half or less so as to better regulate and control the temperature of the second battery monomers 22, and the second battery monomers 22 can be conveniently extended into the groove 32, so that the installation of the second battery monomers 22 is facilitated.

In some embodiments, the angle b of the arcuate surface ranges from 45 to 80.

The angle b of the arc surface is set to be 45-80 degrees so that the side surface of the second battery monomer 22 stretches into the groove 32 to be attached to the arc surface, the installation of the second battery monomer 22 is facilitated, and the sum of the central angles of the inner surface of the groove 32 and the attaching part of the side surface of the second battery monomer 22 is 90-160 degrees so as to better regulate and control the temperature of the second battery monomer 22.

Referring to fig. 9, in some embodiments, when the plurality of grooves 32 are provided on one side of the temperature adjusting plate 300, the channels 301 extend along the length direction X of the temperature adjusting plate 300, and the plurality of concave grooves 320 are gradually reduced in width in the direction parallel to the length direction X and along the temperature adjusting medium flowing direction N.

The temperature adjusting medium flows through the channel 301 of the temperature adjusting plate 300, the shape of the channel 301 is designed, the flowing direction of the temperature adjusting medium can be parallel to the length direction X of the temperature adjusting plate 300, or can be inclined at a part of the position or perpendicular to the length direction X of the temperature adjusting plate 300, but the temperature adjusting medium flows along the length direction X of the temperature adjusting plate 300 as a whole.

The flow of the tempering medium in the tempering plate 300 will form an upstream and a downstream flow of the tempering medium, from upstream to downstream. In the process of flowing in the temperature adjusting medium channel 301, the upstream battery cell 200 performs heat exchange with the temperature adjusting medium, and the temperature difference between the upstream battery cell 200 and the temperature adjusting medium is relatively large, so that heat exchange can be performed more quickly and efficiently, for example, the upstream battery cell 200 is subjected to heat dissipation and temperature reduction, or the upstream battery cell 200 is heated and warmed, accordingly, the temperature of the temperature adjusting medium also changes, the temperature difference between the temperature adjusting medium and the downstream battery cell 200 becomes smaller, and accordingly, the heat exchange efficiency between the temperature adjusting medium and the downstream battery cell 200 also decreases.

The width of the plurality of concave grooves 320 is gradually reduced along the flowing direction N of the temperature adjusting medium, so that the contact surfaces between the inner surfaces of the corresponding grooves 32 and the corresponding second-class battery cells 22 are respectively increased, and the heat exchange efficiency of the second-class battery cells 22 is relatively improved, so that the influence of the reduction of the heat exchange efficiency caused by the smaller temperature difference between the concave grooves and the downstream second-class battery cells 22 in the flowing process of the temperature adjusting medium is offset to a certain extent, and the temperature of the plurality of second-class battery cells 22 is better regulated.

Referring to fig. 3 and 8, in some embodiments, the width of the plurality of concave grooves 320 may be uniform, so as to facilitate processing.

Referring to fig. 7 to 9, in some embodiments, the wall surfaces of opposite sides of the recess 32 are disposed in a plane perpendicular to the length direction X of the temperature adjustment plate 300, and the second type of battery cells 22 are rectangular.

The wall surfaces of the opposite sides of the groove 32 are disposed in planes perpendicular to the length direction X of the temperature adjustment plate 300, meaning that portions of the opposite sides of the inner surface of the groove 32 are disposed in planes perpendicular to the length direction X of the temperature adjustment plate 300, which makes the wall surfaces of the opposite sides of the groove 32 be parallel to each other for inserting the rectangular parallelepiped-shaped second type battery cell 22.

The wall surfaces of the opposite sides of the groove 32 are provided as planes and perpendicular to the length direction X of the temperature adjusting plate 300, so as to facilitate the insertion of the second type battery cell 22 of the rectangular parallelepiped, and further perform thermal management on the second type battery cell 22 of the rectangular parallelepiped.

In some embodiments, in the case that the wall surfaces on opposite sides of the groove 32 are disposed in a plane perpendicular to the length direction X of the temperature adjustment plate 300, the bottom surface of the groove 32 may be disposed in a plane, so that the inner space of the groove 32 is disposed in a cuboid shape to fit the second type battery cell 22 of the cuboid.

In some embodiments, where the wall surfaces on opposite sides of the groove 32 are disposed in a plane perpendicular to the length direction X of the temperature adjustment plate 300, the bottom surface of the groove 32 may also be disposed with a circular arc surface or other shaped surface, and accordingly, the second type of cuboid battery cell 22 is placed in the groove 32.

Referring to fig. 10, in some embodiments, the inner surface of the recess 32 is entirely formed with an arc surface, and the second type of battery cell 22 is cylindrical.

The inner surface of the groove 32 is integrally provided with an arc surface so as to be convenient to process and manufacture, and can be matched with the side surface of the cylindrical second battery monomer 22, so that the cylindrical second battery monomer 22 is subjected to heat management, and the efficiency of adjusting the temperature of the second battery monomer 22 is improved.

Referring to fig. 11 and 12, the plurality of grooves 32 on the temperature adjustment plate 300 are provided, and the second type of battery cells 22 includes a cylindrical battery cell 221, so that the wall surfaces on opposite sides of at least one groove 32 can be provided with arc surfaces, for example, at least one groove 32 is provided as a first groove 321, and the wall surfaces on at least opposite sides of the first groove 321 are provided with arc surfaces to adapt to the placement of the cylindrical battery cell 221, thereby performing thermal management on the cylindrical battery cell 221.

Referring to fig. 11 and 12, the plurality of grooves 32 on the temperature adjustment plate 300 are provided, the second type of battery cells 22 include cuboid battery cells 222, and then the opposite side walls of at least one groove 32 can be provided as a plane, and the opposite side walls of the groove 32 are perpendicular to the length direction X of the temperature adjustment plate 300, for example, at least one groove 32 is provided as a second groove 322, and the opposite side walls of the second groove 322 are provided as planes perpendicular to the length direction X of the temperature adjustment plate 300, so as to adapt to the placement of the cuboid battery cells 222, and further perform thermal management on the cuboid battery cells 222.

In some embodiments, where the second battery cell 22 further includes other shapes of the battery cells 200, such as where the second battery cell 22 includes a hexagonal-prism-shaped battery cell 200, the shape of the recess 32 may also be configured to correspond to the shape into which the hexagonal-prism-shaped battery cell 200 is adapted to be inserted.

Referring to fig. 11, in some embodiments, a heat conduction plane 31 and a groove 32 are provided on one side of the temperature adjustment plate 300, so as to simplify the structure of the temperature adjustment plate 300 and facilitate processing and manufacturing.

In some embodiments, in case that the heat conduction plane 31 and the groove 32 are provided on one side of the temperature adjustment plate 300, the first type battery cell 21 and the second type battery cell 22 may be provided only on the side of the temperature adjustment plate 300 where the heat conduction plane 31 and the groove 32 are provided.

In some embodiments, the temperature-adjusting plate 300 is provided with a heat-conducting plane 31 and a groove 32 on one side surface, the opposite other side surface of which integrally forms the heat-conducting plane 31, and this structure is such that, in the case that the temperature-adjusting plate 300 is provided in plurality, the surfaces of the opposite sides of the first type battery cell 21 having the largest area are respectively in contact with the heat-conducting planes 31 of the two temperature-adjusting plates 300, while the second type battery cell 22 is located between the two temperature-adjusting plates 300, and part thereof protrudes into the groove 32 of one of the temperature-adjusting plates 300.

Referring to fig. 3, 4 and 6-10, in some embodiments, the temperature adjusting plate 300 is provided with a heat conducting plane 31 and a groove 32 on opposite sides thereof. The heat conduction plane 31 and the groove 32 are arranged on two opposite sides of the temperature adjusting plate 300, so that the two sides of the temperature adjusting plate 300 can exchange heat with the battery cell 200, the utilization efficiency of the temperature adjusting plate 300 is improved, and the temperature adjusting plate is applied to the battery 1001, so that occupied space can be reduced.

Referring to fig. 3, 4, and 6 to 10, in some embodiments, in the case that the opposite sides of the temperature adjustment plate 300 are respectively provided with the heat conduction plane 31 and the groove 32, the grooves 32 on the opposite sides of the temperature adjustment plate 300 are disposed opposite to each other along the thickness direction Y of the temperature adjustment plate 300, that is, the positions of the grooves 32 on the opposite sides of the temperature adjustment plate 300 correspond to each other, that is, the grooves 32 on the opposite sides of the temperature adjustment plate 300 are at the same position in the length direction X, and the grooves 32 on the opposite sides of the temperature adjustment plate 300 are respectively disposed by extending inwards from the opposite sides of the temperature adjustment plate 300 along the thickness direction Y of the temperature adjustment plate 300; correspondingly, the heat conducting planes 31 on two opposite sides of the temperature adjusting plate 300 are correspondingly arranged along the thickness direction Y of the temperature adjusting plate 300 to facilitate processing and manufacturing, and the temperature adjusting plate 300 is applied to the battery 1001, so that the first type of battery cells 21 can be arranged in rows respectively along the thickness direction Y of the temperature adjusting plate 300 to facilitate electrical connection of the first type of battery cells 21, and similarly, the second type of battery cells 22 can be arranged in rows respectively along the thickness direction Y of the temperature adjusting plate 300 to facilitate electrical connection of the second type of battery cells 22 to facilitate design and assembly manufacturing of the battery 1001.

Referring to fig. 12, in some embodiments, where the battery 1001 includes a plurality of temperature adjustment plates 300, the plurality of temperature adjustment plates 300 are disposed at intervals along the thickness direction thereof, and a first type of battery cell 21 and a second type of battery cell 22 may be disposed between two adjacent temperature adjustment plates 300, correspondingly, two opposite sides of the temperature adjustment plate 300 in the middle are respectively provided with heat conduction planes 31 to respectively contact with the surface of the first type of battery cell 21 with the largest area, and two opposite sides of the temperature adjustment plate 300 in the middle are respectively provided with grooves 32 to respectively allow a portion of the second type of battery cell 22 to extend into. While the side of the marginal temperature-adjusting plate 300, which is close to the adjacent temperature-adjusting plate 300, is provided with a heat conduction plane 31 and a groove 32 to simplify the structure of the marginal temperature-adjusting plate 300 and to enhance the structural strength of the marginal temperature-adjusting plate 300.

Referring to fig. 6, in some embodiments, a plurality of partitions 302 are disposed in the channel 301, each partition 302 extends along the height direction Z of the temperature adjustment plate 300, and in two adjacent partitions 302, the top end of one partition 302 is spaced from the top of the channel 301, and the bottom end of the other partition 302 is spaced from the bottom of the channel 301.

The partition plate 302 is a plate or rib structure disposed in the channel 301 inside the temperature-adjusting plate 300, so as to change the direction of the flow channel of the temperature-adjusting medium in the channel 301 or extend the flow channel, so as to extend the flow path and flow time of the temperature-adjusting medium, facilitate the temperature-adjusting medium to exchange heat with the heat conduction plane 31 on the temperature-adjusting plate 300 and the side wall of the groove 32 better, and further exchange heat with the first type battery cell 21 and the second type battery cell 22 under the condition of use, so as to improve the utilization rate of the energy (such as the heat of heat dissipation, the cold energy of heat dissipation or the heat of heating) of the temperature-adjusting medium.

Adjacent two partitions 302: the top of one partition plate 302 is arranged at intervals with the top of the channel 301, the bottom of the other partition plate 302 is arranged at intervals with the bottom of the channel 301, so that the temperature-adjusting medium can flow between the top of one partition plate 302 and the top of the channel 301, the temperature-adjusting medium can flow between the bottom of the other partition plate 302 and the bottom of the channel 301, and the temperature-adjusting medium can flow between the adjacent partition plates 302, so that the length of the channel 301 can be prolonged, the temperature-adjusting medium can fully flow through all the positions in the channel 301, the temperature-adjusting medium can better pass through the heat conduction plane 31 and the side wall where the groove 32 is located, and the heat exchange between the first battery cells 21 and the second battery cells 22 on the side face of the temperature-adjusting plate 300 can be better carried out, and the heat exchange efficiency is improved.

Referring to fig. 3, according to some embodiments of the present application, a battery 1001 is provided, which includes a first type of battery cell 21, a second type of battery cell 22, and a temperature adjustment plate 300 as described in the foregoing embodiments, where a heat conduction plane 31 of the temperature adjustment plate 300 is attached to a surface with a largest area of the first type of battery cell 21, and a portion of the second type of battery cell 22 extends into the recess 32.

The battery 1001 not only can realize the mixed use of the first type battery monomer 21 and the second type battery monomer 22, but also can well adjust the temperatures of the first type battery monomer 21 and the second type battery monomer 22, so that the first type battery monomer 21 and the second type battery monomer 22 have good working temperatures.

Referring to fig. 3 and fig. 6 to fig. 12, in some embodiments, temperature adjusting plates 300 are respectively disposed on opposite sides of the first type battery cells 21, and opposite sides of the first type battery cells 21 are respectively attached to the heat conducting planes 31 of the two temperature adjusting plates 300, and the second type battery cells 22 are located between two adjacent temperature adjusting plates 300.

The temperature adjusting plates 300 are respectively provided at opposite sides of the first type battery cells 21, that is, the temperature adjusting plates 300 are provided in plurality along the thickness direction thereof, and the first type battery cells 21 and the second type battery cells 22 are provided between the adjacent two temperature adjusting plates 300. Opposite sides of each first type battery cell 21 are respectively contacted with the corresponding heat conduction planes 31 of the adjacent two temperature regulating plates 300, and the second type battery cell 22 extends into the adjacent groove 32.

Through the above structural design, the heat exchange efficiency of the first type of battery cells 21 can be improved, so as to better regulate the temperature of the first type of battery cells 21.

Referring to fig. 3 and 6-10, in some embodiments, the grooves 32 on opposite inner sides of two adjacent temperature adjustment plates 300 correspond to each other, and one or two second type battery cells 22 are accommodated between the corresponding two grooves 32 on the two adjacent temperature adjustment plates 300.

The opposite inner sides of the adjacent two temperature adjustment plates 300 refer to the sides of each temperature adjustment plate 300 of the adjacent two temperature adjustment plates 300 facing the other temperature adjustment plate 300. The positions of the grooves 32 on the opposite inner sides of the adjacent two temperature adjustment plates 300 correspond to: the grooves 32 on the opposite inner sides of the adjacent two temperature-adjusting plates 300 are disposed opposite to each other in the thickness direction Y of the temperature-adjusting plates 300, so that the opposite grooves 32 define a large space for accommodating the second type battery cells 22.

One or two second type battery cells 22 are accommodated between two corresponding grooves 32 on two adjacent temperature adjustment plates 300, namely, one second battery cell 200 can be installed in a space defined by two opposite grooves 32 (as shown in fig. 7); two second type cells 22 (shown in fig. 3, 8-10 and 12) may also be installed.

The above structural design can adapt to the second type of battery cell 22 with smaller installation size, and also can install the second type of battery cell 22 with larger installation size, so as to better adapt to the requirement of the battery 1001 on the second type of battery cell 22.

Referring to fig. 3 and 7-10, in some embodiments, along the thickness direction Y of the temperature adjustment plates 300, the second type of battery cells 22 installed at the corresponding two grooves 32 on two adjacent temperature adjustment plates 300 occupy a width D, and the first type of battery cells 21 have a thickness T, where T is less than or equal to D is less than or equal to 2T.

The width of the second type battery cell 22 installed at the corresponding two grooves 32 on the adjacent two temperature adjusting plates 300 along the thickness direction Y of the temperature adjusting plates 300 is D, which means that the width of the second type battery cell 22 installed in the space defined by the corresponding two grooves 32 along the thickness direction Y of the temperature adjusting plates 300 is D. As shown in fig. 7, in the case where one second type battery cell 22 is installed between the opposite grooves 32, the second type battery cell 22 has a length D in the thickness direction Y of the temperature adjustment plate 300. As shown in fig. 8, in the case where two second-type battery cells 22 are installed between the opposite grooves 32, the sum of the lengths of the two second-type battery cells 22 is D in the thickness direction Y of the temperature adjustment plate 300. Referring to fig. 3 and 10, when two second-type battery cells 22 are installed between two opposite grooves 32, the sum of the diameters of the two second-type battery cells 22 is D in the case that each second-type battery cell 22 is a cylindrical battery cell 221.

The thickness of the first type battery cell 21 refers to the thickness of the first type battery cell 21 along the thickness direction Y of the temperature adjustment plate 300.

When the two opposite large surfaces of the first battery monomer 21 are attached to the heat conduction planes 31 of the two temperature adjustment plates 300, at least part of the second battery monomer 22 can extend into the groove 32 to be attached to the side wall of the groove 32, so that the side wall of the groove 32 can radiate heat to the second battery monomer 22; and D is less than or equal to 2T, the second type battery cells 22 at the two opposite grooves 32 can extend into the two grooves 32, and the large surface of the first type battery cells 21 is attached to the heat conduction planes 31 of the two temperature regulating plates 300.

The size of the second type battery cell 22 used by the battery 1001 applying the temperature adjustment plate 300 can be conveniently determined by making T be equal to or less than D and equal to or less than 2T, and the type and use of the second type battery cell 22 are convenient.

In some embodiments, the heat generation amount of the first type battery cell 21 is larger than the heat generation amount of the second type battery cell 22 under the same rate discharge.

Under the same multiplying power discharge, the heat productivity of the first type battery monomer 21 is larger than that of the second type battery monomer 22, so that when the battery 1001 works, the heat productivity of the first type battery monomer 21 is larger than that of the second type battery monomer 22, and accordingly, the heat dissipation requirement of the first type battery monomer 21 is larger than that of the second type battery monomer 22.

The large surface of the first type of battery monomer 21 is in contact with the heat conduction plane 31, the heat exchange efficiency of the temperature adjusting plate 300 and the first type of battery monomer 21 is higher, the first type of battery monomer 21 uses the battery monomer 200 with larger heating value, and the temperatures of the first type of battery monomer 21 and the second type of battery monomer 22 in the battery 1001 can be balanced, so that the first type of battery monomer 21 and the second type of battery monomer 22 are both at good working temperatures.

In some embodiments, the first type of cell 21 is a ternary lithium cell 200 and the second type of cell 22 is a lithium iron phosphate cell 200.

The ternary lithium battery cell 200 refers to an internal positive electrode material that is made mainly from ternary lithium. The lithium iron phosphate battery cell 200 refers to an internal positive electrode material that is mainly made of lithium iron phosphate.

The battery 1001 with the above structure can realize a good balance between the energy density and the cost of the battery 1001, and can provide the battery 1001 with better charge and discharge performance.

According to some embodiments of the application, the application further provides an electrical device comprising a battery 1001 according to any of the above aspects.

The powered device may be any of the devices or systems previously described that employ the battery 1001.

Referring to fig. 3 to 6, according to some embodiments of the present application, a temperature adjusting plate 300 is provided, a channel 301 through which a temperature adjusting medium flows is provided in the temperature adjusting plate 300, a heat conducting plane 31 and a groove 32 are provided on a side surface of the temperature adjusting plate 300, and the heat conducting plane 31 is used for contacting a surface with the largest area of the first type battery cells 21; the groove 32 is used for allowing part of the second type battery cell 22 to be inserted, the groove 32 extends along the height direction of the temperature adjusting plate 300, the bottom of the groove 32 is provided with a concave groove 320, and the wall surfaces on two opposite sides of the groove 32 are provided with arc surfaces. A plurality of partition boards 302 are arranged in the channel 301, each partition board 302 extends along the height direction Z of the temperature regulating plate 300, and two adjacent partition boards 302: the top end of one of the baffles 302 is spaced from the top of the channel 301 and the bottom end of the other baffle 302 is spaced from the bottom of the channel 301. The temperature adjusting plate 300 can adjust the temperature of the first type battery cell 21 and the cylindrical second type battery cell 22 at the same time to well control the temperature of the first type battery cell 21 and the second type battery cell 22.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. The utility model provides a temperature regulating plate which characterized in that, be equipped with the passageway that supplies the temperature regulating medium to flow in the temperature regulating plate, the side of temperature regulating plate is equipped with:

2. The temperature-regulating plate according to claim 1, wherein a plurality of heat conduction planes are arranged on the side surface of the temperature-regulating plate at intervals along the length direction, and the grooves are arranged between two adjacent heat conduction planes.

3. The temperature-regulating plate as claimed in claim 2, wherein the bottom of the recess is provided with a recess.

4. A temperature regulating plate as defined in claim 3, wherein said second type of battery cells are cylindrical, and wherein the walls on opposite sides of at least one of said grooves are provided with arcuate surfaces for mating with the sides of said second type of battery cells.

5. The thermostat plate as set forth in claim 4, wherein the arcuate surface has an angle in the range of 30 ° -90 °.

6. The thermostat plate as set forth in claim 5, wherein the arcuate surface has an angle in the range of 45 ° -80 °.

7. A thermostat plate as claimed in any one of claims 3-6, characterized in that the number of grooves in one side of the thermostat plate is plural, the channels extending in the longitudinal direction of the thermostat plate, and in that the width of the plurality of recess grooves is gradually reduced in parallel to the longitudinal direction.

8. The temperature-regulating plate according to any one of claims 1 to 6, wherein the wall surfaces on opposite sides of at least one of the grooves are provided in a plane perpendicular to the longitudinal direction of the temperature-regulating plate, and the second type battery cells are in a rectangular parallelepiped shape.

9. The temperature-regulating plate according to any one of claims 1-2, wherein the inner surface of the recess is entirely provided with an arc surface, and the second type of battery cells are cylindrical.

10. The temperature-regulating plate according to any one of claims 1-6, wherein the heat-conducting plane and the recess are provided on opposite sides of the temperature-regulating plate, respectively, and wherein the recesses on opposite sides of the temperature-regulating plate are arranged opposite to each other in the thickness direction of the temperature-regulating plate.

11. The temperature-adjusting plate according to any one of claims 1 to 6, wherein a plurality of partition plates are provided in the passage, each of the partition plates is provided to extend in a height direction of the temperature-adjusting plate, and in two adjacent partition plates, a top end of one partition plate is provided to be spaced from a top of the passage, and a bottom end of the other partition plate is provided to be spaced from a bottom of the passage.

12. A battery comprising a first type of battery cell, a second type of battery cell and a temperature regulating plate according to any one of claims 1-11, wherein a heat conduction plane of the temperature regulating plate is attached to a surface of the first type of battery cell with the largest area, and a part of the second type of battery cell extends into the groove.

13. The battery of claim 12, wherein the temperature regulating plates are respectively arranged on opposite sides of the first type of battery cell, opposite side surfaces of the first type of battery cell are respectively attached to the heat conducting planes of two temperature regulating plates, and the second type of battery cell is positioned between two adjacent temperature regulating plates.

14. The battery of claim 13, wherein said grooves on opposite inner sides of adjacent ones of said temperature regulating plates correspond in position, and one or two of said second type battery cells are received between corresponding ones of said grooves on adjacent ones of said temperature regulating plates.

15. The battery according to claim 14, wherein the widths of the second type of battery cells installed at the corresponding two grooves on two adjacent temperature adjusting plates are D along the thickness direction of the temperature adjusting plates, and the thickness of the first type of battery cells is T, wherein T is less than or equal to D is less than or equal to 2T.

16. The battery of any of claims 12-15, wherein the first type of cell generates a greater amount of heat than the second type of cell upon discharge at the same rate.

17. The battery of claim 16, wherein the first type of cell is a ternary lithium cell and the second type of cell is a lithium iron phosphate cell.

18. An electrical device comprising a battery as claimed in any one of claims 12 to 17.