WO2026067159A1 - Battery - Google Patents

Abstract

The embodiments of the present application relate to the technical field of energy storage. Provided is a battery. The battery comprises a frame, a first battery cell and a first liquid cooling plate. The frame encloses a cavity having an opening, the first battery cell is mounted in the cavity, and the first battery cell is connected to the inner wall of the cavity. The first liquid cooling plate is located at the opening and opposite the first battery cell. A first channel for the circulation of cooling liquid is provided in the frame, a second channel for the circulation of cooling liquid is provided in the first liquid cooling plate, and the first channel and the second channel are located on two opposite sides of the first battery cell. The battery achieves heat exchange for the battery cell by means of both the frame and the liquid cooling plate, such that the heat dissipation effect of the battery and the structural compactness of the battery can be ensured at the same time.

Description

A type of battery

This application claims priority to Chinese Patent Application No. 202422335070.4, filed with the Chinese Patent Office on September 24, 2024, entitled "A Battery", the entire contents of which are incorporated herein by reference.

Technical Field

This application relates to the field of energy storage technology, and more particularly to a battery.

Background Technology

With the continuous development of electric vehicles, high-performance computing devices, and other electrical equipment, the safety and stability of batteries are becoming increasingly important. To prevent batteries from overheating during discharge, which could lead to damage or performance degradation, heat exchange technology is generally used to cool the batteries.

Liquid cooling technology is one of the most commonly used heat exchange technologies. The specific technical solution is to install a liquid cooling plate near the battery cells in the battery pack. The liquid cooling plate is provided with channels for the flow of coolant. When the coolant flows in the channels, it continuously exchanges heat with the battery cells, thereby dissipating heat from the battery and achieving the purpose of cooling.

However, in current liquid cooling technology, the liquid cooling plates need to be installed inside the battery. When the number of liquid cooling plates is small, the overall heat dissipation of the battery is poor. When the number of liquid cooling plates is large, the installation process is cumbersome, and the battery becomes bulky and heavy. Therefore, how to simultaneously ensure the battery's heat dissipation effect and structural compactness has become a technical problem that needs to be solved.

Utility Model Content

This application provides a battery in which a first channel for coolant flow is provided within the frame of the battery, and a second channel for coolant flow is provided within the first liquid cooling plate. Thus, the frame and the first liquid cooling plate work together to exchange heat with the first battery cell, which can ensure both the heat dissipation effect and the compactness of the battery structure.

This application provides a battery comprising a frame, a first battery cell, and a first liquid cooling plate. The frame forms an open cavity, in which the first battery cell is mounted and connected to the inner wall of the cavity. The first liquid cooling plate is located at the open cavity and opposite to the first battery cell. A first channel for coolant flow is provided within the frame, and a second channel for coolant flow is provided within the first liquid cooling plate; the first and second channels are located on opposite sides of the first battery cell.

In this type of battery, the frame and the first liquid cooling plate work together to exchange heat with the first battery cell, which can simultaneously ensure the heat dissipation effect and the compactness of the battery structure.

In one alternative approach, the first battery cell is connected to the first inner wall of the cavity, with the first inner wall facing the opening.

In this method, the installation of the first battery cell is more convenient.

In one alternative approach, the area of the side of the first liquid cooling plate facing the first battery cell is smaller than the area of the casing of the first battery cell in contact with the first inner wall.

In this approach, the first liquid cooling plate is small enough to make the battery structure more compact.

In one alternative approach, the flow cross-sectional area of the first channel is larger than that of the second channel.

The first channel has a larger flow cross-sectional area, enabling the frame to fully exchange heat with the portion of the first battery cell located in the cavity. The second channel has a smaller flow cross-sectional area, which, while ensuring sufficient heat exchange with the end of the first battery cell opposite the first liquid cooling plate, also reduces the space occupied by the first liquid cooling plate, thus making the overall battery structure more compact.

In one alternative approach, the first and second channels are connected in series or in parallel.

When the first and second channels are connected in series or in parallel, coolant can be injected into the first and second channels simultaneously through a single injection port, or the coolant in the first and second channels can be discharged simultaneously through a single drain port. The number of injection and drain ports is small, the coolant filling and draining process is simple, and it is easy to control.

In one alternative, the frame is a plastic frame, and/or the first liquid cooling plate is a plastic plate.

When the frame is made of plastic, it acts as an insulator, preventing short circuits caused by contact between the frame and conductive components. When the first liquid cooling plate is made of plastic, it acts as an insulator, preventing short circuits caused by contact between the first liquid cooling plate and conductive components.

In one alternative approach, the flow directions of the first and second channels are aligned.

In this method, coolant can enter the first and second channels from the same side and flow out from the first and second channels from the same side, making coolant distribution and collection more convenient.

In one alternative embodiment, the battery further includes a plate located between the electrode terminals and the first liquid cooling plate, with the plate opposite to the first liquid cooling plate.

In this method, the first liquid cooling plate can exchange heat with the first battery cell and the heat exchange plate simultaneously, resulting in better heat dissipation of the battery.

In one alternative embodiment, the battery further includes a second battery cell and a second liquid cooling plate. The second battery cell is installed in a cavity and connected to the inner wall of the cavity, and is arranged side-by-side with the first battery cell. The second liquid cooling plate is arranged side-by-side with a gap between it and the first liquid cooling plate, and is located at an open end opposite to the second battery cell. A third channel for coolant flow is provided within the second liquid cooling plate, and the first channel and the third channel are located on opposite sides of the second battery cell.

In this method, the second battery cell is heated together by the frame and the second liquid cooling plate, resulting in better heat dissipation. Furthermore, this method can maintain both effective heat dissipation and structural compactness even when multiple battery cells are installed within the battery.

In one alternative embodiment, the battery further includes a second battery cell. The second battery cell is mounted within the cavity and connected to the inner wall of the cavity, and is arranged side-by-side with the first battery cell. The first channel and the second channel are located on opposite sides of both the first and second battery cells.

In this method, both the first and second battery cells exchange heat through the frame and the first liquid cooling plate. This method has fewer parts, is easy to install, and can also ensure the heat dissipation effect and the compact structure of the battery when multiple battery cells are installed inside the battery.

In the battery provided in this application embodiment, a first channel for coolant flow is provided within the frame, and a second channel for coolant flow is provided within the first liquid cooling plate. The first and second channels are located on opposite sides of the first battery cell, allowing the first battery cell to exchange heat simultaneously through the coolant in both channels, thereby improving the battery's heat exchange efficiency and heat dissipation. Furthermore, since the battery frame also functions as a heat exchanger, only the open end needs to be fitted with a liquid cooling plate to ensure sufficient heat dissipation. The battery has a compact structure, is easy to assemble, and simultaneously guarantees both effective heat dissipation and structural compactness.

The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below.

Attached Figure Description

To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

Figure 1 is a schematic diagram of an explosion of a battery provided in an embodiment of this application.

Figure 2 is a schematic diagram of the overall structure of the battery when it is assembled according to an embodiment of this application.

Figure 3 is a partial cross-sectional view of the location of the first battery cell in the battery involved in the embodiment of this application.

Figure 4 is a partial cross-sectional view of the first and second battery cells in the battery involved in the embodiment of this application at the adjacent positions.

Reference numerals: 10, frame; 11, cavity; 12, first channel; 13, first inner wall; 20, first battery cell; 21, electrode terminal; 30, first liquid cooling plate; 31, second channel; 40, plate; 50, second battery cell; 60, second liquid cooling plate; 61, third channel.

Detailed Implementation

To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

Unless otherwise defined, 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 pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

In this article, the term "and/or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character "/" in this article generally indicates that the preceding and following related objects have an "or" relationship.

The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the current limiting module of this application. For example, in the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by a partition, such as a connection fixed by screws, bolts, or other partitions; a physical connection can also be a detachable connection, such as a snap-fit or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In circuit structures, "connection" or "linkage" can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate element, as long as the circuit is connected; it can also refer to the internal connection of two elements. A signal connection can refer not only to a signal connection through a circuit but also to a signal connection through a medium, such as radio waves. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

In this embodiment, the battery can be a battery pack or a battery module. When the battery is a battery pack, the battery pack specifically includes a Battery Management System (BMS) and multiple battery cells. Multiple battery cells can be electrically connected in series, parallel, or a combination of series and parallel connections, and communicate with the Battery Management System to form a battery pack. The Battery Management System controls and monitors the operating status of each battery cell. Alternatively, multiple battery cells can first be connected in series and/or parallel, and then connected with a module management system to form a battery module. These battery modules can then be electrically connected in series, parallel, or a combination of series and parallel connections, and together with the Battery Management System, form a battery pack.

Multiple battery cells in a battery pack or battery module can be mounted on supporting structures such as housings, frames, and brackets. The individual battery cells and the battery management system can be electrically connected through busbars, such as battery terminals. The battery cells can be lithium-ion, sodium-ion, or magnesium-ion batteries, and their external contours can be cylindrical, flat, cuboid, or other shapes, but are not limited to these.

The battery provided in this application is shown in Figures 1, 2, and 3. Figure 1 is an exploded view of a battery provided in an embodiment of this application. Figure 2 is an overall structural diagram of the battery provided in an embodiment of this application when assembled. Figure 3 is a partial cross-sectional view of the location of the first battery cell in the battery involved in an embodiment of this application. The battery includes a frame 10, a first battery cell 20, and a first liquid cooling plate 30.

The frame 10 is a support structure that provides support and mounting positions for components such as battery cells and liquid cooling plates. The frame 10 encloses an open cavity 11 for mounting battery cells. The opening of the cavity 11 is an opening that communicates with the outside, providing operating space for the installation process of battery cells and other components.

The frame 10 can be made of high-strength materials, such as aluminum alloy profiles or steel profiles. The overall shape of the frame 10 can be configured in many ways, such as a square frame structure or a circular frame structure. The cavity 11 enclosed by the frame 10 can also be square, circular, or other shapes as needed; no restrictions are placed here.

The frame 10 has a first channel 12 for coolant flow, enabling the frame 10 itself to exchange heat with the first battery cell 20, thereby improving the battery's heat dissipation efficiency. The wall thickness between the first channel 12 and the cavity 11 is relatively small, and the position of the first channel 12 is such that it is close to the first battery cell 20, allowing the coolant flowing through the first channel 12 to directly exchange heat with the first battery cell 20.

The first battery cell 20 is a component for storing electrical energy. Specifically, the first battery cell 20 includes a battery casing and an electrode assembly, with the electrode assembly housed within the battery casing. The electrode assembly is the smallest unit in the battery where electrochemical reactions occur, enabling the charging and discharging of the battery cell. It typically includes a positive electrode, a negative electrode, and a separator separating the positive and negative electrodes. An electrolyte is injected into the battery casing, allowing it to penetrate the electrode assembly and provide ion migration pathways for the electrochemical reactions, as well as providing electrical conductivity. Furthermore, the battery casing typically has exposed electrode terminals, including a positive terminal and a negative terminal, which are respectively connected to the positive and negative electrodes for charging and discharging.

The first battery cell 20 is installed in the cavity 11 and connected to the inner wall of the cavity 11. Specifically, the battery casing of the first battery cell 20 is connected to the inner wall of the cavity 11, fixing the first battery cell 20 inside the cavity 11, and one side of the first battery cell 20 faces outwards to facilitate the arrangement of components such as heat exchangers at the opening of the cavity 11. As shown in Figure 3, in one specific embodiment, the heat exchanger 40 can be connected to the electrode terminal 21 of the first battery cell 20. The heat exchanger 40 is located between the electrode terminal 21 and the first liquid cooling plate 30, and the heat exchanger 40 is opposite to the first liquid cooling plate 30. In this configuration, the first liquid cooling plate 30 can simultaneously exchange heat for both the first battery cell 20 and the heat exchanger 40, resulting in better heat dissipation of the battery.

The first battery cell 20 can be connected to the inner wall of the cavity 11 by welding, bonding, or other methods. The first battery cell 20 can be connected to the side wall of the cavity 11. The first battery cell 20 can also be connected to the side opposite the opening, as shown in Figure 3. The first battery cell 20 is connected to the first inner wall 13 of the cavity 11, and the first inner wall 13 is opposite to the opening, so as to facilitate the installation of the first battery cell 20.

In a specific implementation, the first end of the first battery cell 20 can be connected to the first inner wall 13 of the cavity 11, and the second end of the first battery cell 20 can face outwards from the opening. The first end and the second end are the opposite ends of the first battery cell 20. For example, the first end of the first battery cell 20 is the bottom end of the battery casing of the first battery cell 20, and the second end of the first battery cell 20 is the end where the electrode terminal 21 of the first battery cell 20 is located.

Furthermore, the battery cell can be installed in the cavity 11 in the forward direction, that is, in the direction of gravity, the opening of the cavity 11 faces upward, and the battery cell is installed in the cavity 11 with the bottom of the battery casing facing downward and the electrode terminal 21 facing upward. At this time, the first inner wall 13 opposite to the opening is the bottom of the cavity 11.

The battery cell can also be installed upside down in the cavity 11, that is, in the direction of gravity, the opening of the cavity 11 faces downward, and the battery cell is installed in the cavity 11 with the bottom of the battery casing facing upward and the electrode terminal 21 facing downward. In this case, the first inner wall 13 opposite to the opening is the top of the cavity 11.

The first liquid cooling plate 30 is a plate-shaped structure with a certain thickness, which can be set as a circular plate, a square plate, a long strip plate, etc. When the first liquid cooling plate 30 is connected to the frame 10, the specific connection method can be threaded connection, snap-fit, welding, etc., and there is no limitation here.

The first liquid cooling plate 30 is located at the opening and is opposite to the first battery cell 20. The first liquid cooling plate 30 is provided with a second channel 31 for the flow of coolant, so that the first liquid cooling plate 30 is adjacent to the first battery cell 20, and the coolant flowing through the second channel 31 also exchanges heat with the first battery cell 20.

As shown in Figure 3, the first channel 12 and the second channel 31 are located on opposite sides of the first battery cell 20. That is, the first channel 12 within the frame 10 is located in the inner wall opposite the opening, i.e., in the first inner wall 13, thus placing the first battery cell 20 between the first channel 12 and the second channel 31. At this point, the frame 10 and the first liquid cooling plate 30 form a double-layer cooling structure. When the coolant flows through both the first channel 12 and the second channel 31 simultaneously, it can cool the first battery cell 20 from multiple directions, thereby improving the battery's heat dissipation effect. Simultaneously, since the frame 10 also has a heat exchange function, only the first liquid cooling plate 30 needs to be installed at the opening to ensure sufficient heat dissipation for the first battery cell 20. The battery structure is compact and easy to install, simultaneously ensuring both excellent heat dissipation and structural compactness.

The first channel 12 and the second channel 31 may each include one or more channels. The flow cross-sections of the first channel 12 and the second channel 31 may be specifically configured as circular, elliptical, etc., and the flow cross-sectional area of the first channel 12 may be the same as or different from the flow cross-sectional area of the second channel 31. The flow cross-section is the cross-section perpendicular to the direction of coolant flow.

In one specific embodiment, the flow cross-sectional area of the first channel 12 can be larger than that of the second channel 31. The larger flow cross-sectional area of the first channel 12 allows the frame 10 to provide sufficient cooling for the first battery cell 20 located in the cavity 11. The smaller flow cross-sectional area of the second channel 31 ensures effective heat dissipation at the end of the first battery cell 20 opposite to the first liquid cooling plate 30 while minimizing the space occupied by the first liquid cooling plate 30, thus making the overall battery structure more compact.

In this embodiment, the first channel 12 and the second channel 31 can be independent of each other, so that coolant can be injected independently. Alternatively, the first channel 12 and the second channel 31 can be connected, such as by connecting the first channel 12 and the second channel 31 in series or in parallel.

The first channel 12 and the second channel 31 are connected in series, meaning that the first channel 12 and the second channel 31 are connected end to end. For example, the outlet of the first channel 12 can be connected to the inlet of the second channel 31, or the outlet of the second channel 31 can be connected to the inlet of the first channel 12, so that the coolant passes through the first channel 13 and the second channel 31 successively.

The first channel 12 and the second channel 31 are connected in parallel, meaning that their respective liquid inlets are connected together, and their respective liquid outlets are also connected together. For example, the liquid inlets of both the first channel 12 and the second channel 31 can be connected to the liquid inlet pipe, and the liquid outlets of both the first channel 12 and the second channel 31 can be connected to the liquid outlet pipe. This allows the coolant to be divided into two parts, which simultaneously enter the first channel 12 and the second channel 31, and then simultaneously flow out of the first channel 12 and the second channel 31 and converge together.

When the first channel 12 and the second channel 31 are connected in series or in parallel, coolant can be simultaneously injected into the first channel 12 and the second channel 31 through a single injection port, and simultaneously discharged from the first channel 12 and the second channel 31 through a single drain port. This reduces the number of injection and drain ports, simplifying the coolant filling and draining process and making it easier to control. Furthermore, the flow direction of the first channel 12 and the second channel 31 can be aligned, allowing coolant to enter and exit from the same side, making coolant distribution and collection more convenient.

In this embodiment, the inner wall of the cavity 11 is used for heat exchange with the first battery cell 20, and the side of the first liquid cooling plate 30 facing the first battery cell 20 is also used for heat exchange with the first battery cell 20. In a specific implementation, the area of the side of the first liquid cooling plate 30 facing the first battery cell 20 can be smaller than the area of the housing of the first battery cell 20 in contact with the first inner wall 13 of the cavity 11, thereby optimizing the volume of the first liquid cooling plate 30, making the first liquid cooling plate 30 sufficiently small, and making the battery structure more compact.

For example, the bottom surface of the battery casing of the first battery cell 20 can be made to fully contact the first inner wall 13, thereby allowing the first battery cell 20 located in the cavity 11 to receive sufficient heat dissipation. At the same time, the area of the side of the first liquid cooling plate 30 facing the first battery cell 20 can be made smaller than the area of the bottom surface of the battery casing of the first battery cell 20, thereby ensuring sufficient heat dissipation at one end of the electrode terminal 21 of the first battery cell 20 while making the first liquid cooling plate 30 sufficiently small, resulting in a more compact battery structure.

In this embodiment, the frame 10 and the first liquid cooling plate 30 can be configured as a metal frame 10 and a metal plate, to ensure the structural stability of the frame 10 and the first liquid cooling plate 30 and to guarantee the cooling effect of the first liquid cooling plate 30. Alternatively, the frame 10 can be a plastic frame 10, so that the frame 10 acts as an insulator, preventing the frame 10 from contacting conductive components and causing a short circuit. Similarly, the first liquid cooling plate 30 can be a plastic plate, so that the first liquid cooling plate 30 acts as an insulator, preventing the first liquid cooling plate 30 from contacting conductive components and causing a short circuit.

In addition, in this embodiment, a second battery cell 50 may also be installed inside the cavity 11. The second battery cell 50 is opposite to the first battery cell 20. For example, in two adjacent battery cells, either one can be called the first battery cell 20, and the other can be called the second cell 50.

The second battery cell 50 can exchange heat through a second liquid cooling plate 60 (different from the first liquid cooling plate 30) and a frame 10, or it can still exchange heat through the first liquid cooling plate 30 and a frame 10. Examples are given below.

Figure 4 shows a heat dissipation method for the battery with the second battery cell 50 installed. Figure 4 is a partial cross-sectional view of the adjacent positions of the first and second battery cells in the battery according to the embodiment of this application. The battery also includes the second battery cell 50 and the second liquid cooling plate 60. The second battery cell 50 is installed in the cavity 11 and connected to the inner wall of the cavity 11. The second battery cell 50 is arranged side-by-side with the first battery cell 20. The second liquid cooling plate 60 is arranged side-by-side with the first liquid cooling plate 30 at intervals, and the second liquid cooling plate 60 is located at the open end and opposite the second battery cell 50. The second liquid cooling plate 60 has a third channel 61 for coolant flow, and the first channel 12 and the third channel 61 are located on opposite sides of the second battery cell 50.

The second liquid cooling plate 60 has a similar structure to the first liquid cooling plate 30, and its specific structural form is analogous to the relevant description of the first liquid cooling plate 30 above, so it will not be repeated here. In specific embodiments, the second liquid cooling plate 60 can have the same structure as the first liquid cooling plate 30, or it can differ in shape and size. Furthermore, the third channel 61 inside the second liquid cooling plate 60 can be connected in parallel or in series with the second channel 31 inside the first liquid cooling plate 30, and the third channel 61 inside the second liquid cooling plate 60 can also be connected in parallel or in series with the first channel 12, without specific limitations.

In this method, the frame 10 and the second liquid cooling plate 60 work together to exchange heat with the second battery cell 50, resulting in better heat dissipation. Furthermore, this method can simultaneously ensure both effective heat dissipation and structural compactness when multiple battery cells are installed within the battery.

The second heat dissipation method when the second battery cell 50 is installed is as follows: the battery also includes the second battery cell 50. The second battery cell 50 is installed in the cavity 11 and connected to the inner wall of the cavity 11. The second battery cell 50 is arranged side by side with the first battery cell 20. The first channel 12 and the second channel 31 are located on opposite sides of the first battery cell 20 and the second battery cell 50.

In this method, both the first battery cell 20 and the second battery cell 50 exchange heat through the frame 10 and the first liquid cooling plate 30. This method has fewer parts, is easier to install, and can also ensure the heat dissipation effect and the compact structure of the battery when multiple battery cells are installed inside the battery.

In summary, the battery described above features a first channel for coolant flow within its frame and a second channel for coolant flow within its first liquid cooling plate. The first and second channels are located on opposite sides of the first battery cell, allowing the cell to exchange heat simultaneously through the coolant in both channels, thus improving heat exchange efficiency and heat dissipation. Furthermore, since the battery frame also functions as a heat exchanger, only the open end needs to be fitted with a liquid cooling plate to ensure adequate heat dissipation. The battery has a compact structure, is easy to assemble, and simultaneously guarantees both effective heat dissipation and structural compactness.

Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Finally, it should be noted that the above embodiments are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims (10)

A battery, characterized in that the battery comprises: a frame, a first battery cell, and a first liquid cooling plate; The frame forms an open cavity; the first battery cell is installed in the cavity and is connected to the inner wall of the cavity; The first liquid cooling plate is located at the opening and is opposite to the first battery cell; The frame is provided with a first channel for coolant to flow through, and the first liquid cooling plate is provided with a second channel for coolant to flow through. The first channel and the second channel are located on opposite sides of the first battery cell. According to claim 1, the battery is characterized in that the first battery cell is connected to the first inner wall of the cavity, and the first inner wall is opposite to the opening. According to claim 2, the battery is characterized in that the area of the side of the first liquid cooling plate facing the first battery cell is smaller than the area of the casing of the first battery cell in contact with the first inner wall. According to claim 1, the battery is characterized in that the cross-sectional area of the first channel is greater than the cross-sectional area of the second channel. The battery according to claim 1 is characterized in that the first channel and the second channel are connected in series or in parallel. The battery according to claim 1, wherein the frame is a plastic frame, and/or the first liquid cooling plate is a plastic plate. The battery according to claim 1 is characterized in that the flow directions of the first channel and the second channel are consistent. According to claim 1, the battery further includes a electrode plate; the electrode plate is connected to the electrode terminal of the first battery cell; the electrode plate is located between the electrode terminal and the first liquid cooling plate, and the electrode plate is opposite to the first liquid cooling plate. The battery according to claim 1, wherein the battery further comprises a second battery cell and a second liquid cooling plate; The second battery cell is installed in the cavity and is connected to the inner wall of the cavity; the second battery cell is arranged side by side with the first battery cell. The second liquid cooling plate is arranged side by side with the first liquid cooling plate at a distance, and the second liquid cooling plate is located at the opening and is opposite to the second battery cell; The second liquid cooling plate is provided with a third channel for the flow of coolant, and the first channel and the third channel are located on opposite sides of the second battery cell. The battery according to claim 1, wherein the battery further comprises a second battery cell; The second battery cell is installed in the cavity, and the second battery cell is connected to the inner wall of the cavity; The second battery cell is arranged side by side with the first battery cell; The first channel and the second channel are located on opposite sides of the first battery cell and the second battery cell, respectively.