Battery and electric device

Abstract

The utility model discloses a battery and an electric device. The battery comprises a box body; a plurality of battery cells, the plurality of battery cells being arranged in the case, and shoulders of the plurality of battery cells being configured to form a cooling channel; and a water cooling device configured to cool the plurality of battery cells, wherein the water cooling device comprises a plate-shaped water cooling element, and the water cooling element is arranged in the cooling channel.

Description

Technical Field

[0001] This application relates to the field of batteries, specifically to a battery and an electrical device. Background Technology

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] Vehicle power batteries possess high energy density and excellent cycle characteristics. Power batteries have a specific operating temperature range; excessively high or low temperatures can affect their performance and lifespan. Therefore, batteries typically require a cooling system during operation to maintain their temperature within a suitable range.

[0004] One existing battery cooling method is air cooling. Air cooling systems primarily use fans to force air through the gaps between individual cells or through ducts. During airflow, heat is exchanged between the air and the heat-generating components (individual cells), carrying away heat and achieving cooling. However, air cooling has two main problems: First, the heat exchange efficiency between air and individual cells is relatively low, resulting in a lower cooling effect than water cooling. Second, the airflow direction is difficult to control, making it difficult to target and cool the most heat-generating areas of individual cells, thus reducing the uniformity of cooling.

[0005] Another existing method for cooling batteries is water-cooled thermal management. Most battery packs in new energy vehicles use large square cells in groups. The water-cooling plates in these battery packs are all located at the bottom of the modules and are separate from the modules, which affects the overall thermal management performance of the pack and the lifespan of the cells, and also reduces the energy density of the battery pack. Utility Model Content

[0006] In view of the above problems, this application provides a battery and an electrical device to overcome the aforementioned problems existing in the prior art.

[0007] One object of this application is to provide a battery and an electrical device that employs water cooling for thermal management, which can cool the shoulder of the battery cell.

[0008] Another objective of this application is to provide a battery and an electrical device that can cool the shoulder of the battery cell while occupying little space and not reducing the energy density of the battery pack.

[0009] In a first aspect, this application provides a battery comprising:

[0010] Box;

[0011] Multiple battery cells are arranged in the housing, and the shoulders of the multiple battery cells are configured to form cooling channels; and

[0012] A water-cooling device configured to cool the plurality of battery cells;

[0013] The water-cooling device includes plate-shaped water-cooling elements arranged in the cooling channel.

[0014] By forming cooling channels between the shoulders of the battery cells and taking advantage of the protruding characteristics of the terminals, the space near the shoulders can be fully utilized to form a water-cooling solution suitable for the shoulders, thereby improving the cooling effect of the battery.

[0015] In some embodiments of the battery, the plurality of battery cells are formed as one or more cell groups arranged side by side, each cell group including a first row of battery cells and a second row of battery cells, the first row of battery cells and the second row of battery cells being arranged such that the terminal of each battery cell in the first row of battery cells is opposite to the terminal of a corresponding battery cell in the second row of battery cells, so as to form the cooling channel between the first row of battery cells and the second row of battery cells.

[0016] By grouping multiple battery cells, the space inside the casing can be fully utilized to form a compact layout. At the same time, by arranging the battery cells in rows within each group, cooling channels can be formed regularly, which is beneficial for the installation of water-cooling components, improves the cooling effect, and does not waste space.

[0017] In some embodiments of the battery, the battery cells in each cell group are in a flat state, wherein two or more flat battery cells are stacked and arranged side by side to form the first row of battery cells and the second row of battery cells, respectively.

[0018] The battery cells are stacked and arranged side by side in a flat state, which can make full use of the space inside the box and facilitates a compact arrangement. At the same time, this regular arrangement is conducive to the arrangement and distribution of water cooling devices.

[0019] In some embodiments of the battery, the battery cells in each cell group are in a side-mounted state, wherein multiple side-mounted battery cells are arranged side by side to form the first row of battery cells and the second row of battery cells, respectively.

[0020] The battery cells are arranged side by side in a side-by-side configuration, which makes full use of the space inside the casing and facilitates a compact arrangement. At the same time, this regular arrangement is conducive to the arrangement and distribution of water cooling devices.

[0021] In some embodiments of the battery, the water-cooling element is arranged between the two terminals of the battery cell.

[0022] By placing the water-cooling element between the two terminals of the battery cell, the space between the shoulders of the battery cell can be fully utilized, thereby improving the water-cooling effect.

[0023] In some embodiments of the battery, the water-cooling device includes a water-cooling frame arranged around the plurality of battery cells, and the water-cooling elements are coupled to the water-cooling frame.

[0024] By providing a water-cooling frame, support can be provided for the water-cooling components, which is beneficial for the positioning of the water-cooling components in the cooling channel and for the formation of a water-cooling circuit.

[0025] In some embodiments of the battery, each cooling channel is provided with multiple water-cooling elements, and the water-cooling elements in each cooling channel are connected to each other through an upper frame element above the battery cell, and the upper frame elements are connected to each other through side frame elements on the side of the battery cell.

[0026] Each cooling channel is equipped with multiple water-cooling components, which can be adapted to situations where the battery cells are placed flat, in order to save space and facilitate the cooling of the battery cells.

[0027] In some embodiments of the battery, each cooling channel is provided with a water-cooling element, and the water-cooling elements in each cooling channel are connected to each other through side frame elements on the side of the battery cell.

[0028] Each cooling channel is equipped with a water-cooling element, which can be adapted to the case where the battery cells are in a side-mounted position, so as to save space and facilitate the cooling of the battery cells.

[0029] In some embodiments of the battery, the water cooling device further includes a water cooling plate disposed above or below the plurality of battery cells, and the water cooling element is connected to the water cooling plate.

[0030] By setting up a water-cooling plate, support and fixation can be provided for water-cooling components, while also providing additional cooling for individual battery cells.

[0031] Secondly, this application provides an electrical device that includes the battery described in the above embodiments, the battery being used to provide electrical energy.

[0032] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0033] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0034] Figure 1 These are schematic diagrams of the structure of a vehicle according to some embodiments of this application;

[0035] Figure 2 This is an exploded structural diagram of a battery according to some embodiments of this application;

[0036] Figure 3 This is an exploded structural diagram of a battery according to some embodiments of this application;

[0037] Figure 4 This is a schematic diagram of a battery according to some embodiments of this application;

[0038] Figure 5 This is a top view of a battery according to some embodiments of this application;

[0039] Figure 6 This is a schematic diagram of a battery cell in a battery according to some embodiments of this application;

[0040] Figure 7 This is a top view of a battery cell in a battery according to some embodiments of this application;

[0041] Figure 8 This is a side view of a battery cell in a battery according to some embodiments of this application;

[0042] Figure 9 This is a schematic diagram of a water-cooling device in a battery according to some embodiments of this application;

[0043] Figure 10 This is an exploded structural diagram of a battery according to some embodiments of this application;

[0044] Figure 11 This is an exploded structural diagram of a battery according to some embodiments of this application;

[0045] Figure 12 This is a top view of a battery according to some embodiments of this application;

[0046] Figure 13 These are schematic diagrams of battery cells and water cooling devices in batteries according to some embodiments of this application;

[0047] Figure 14This is a top view of a battery cell and a water cooling device in a battery according to some embodiments of this application;

[0048] Figure 15 This is a front view of a battery cell and a water cooling device in a battery according to some embodiments of this application;

[0049] Figure 16 This is a schematic diagram of a water-cooling device in a battery according to some embodiments of this application;

[0050] Figure 17 This is a top view of a water-cooling device in a battery according to some embodiments of this application; and

[0051] Figure 18 This is a schematic diagram of a water-cooling device in a battery according to some embodiments of this application.

[0052] The reference numerals in the detailed embodiments are as follows:

[0053] 1000 vehicles;

[0054] Battery 100, controller 200, motor 300;

[0055] Box 10, Part 11, Part 2 12;

[0056] Battery cell 20, terminal post 202, shoulder 204, cell group 22, first row of battery cells 222, second row of battery cells 224, cooling channel 24;

[0057] Water cooling device 30, water cooling element 32, water cooling frame 34, upper frame element 342, side frame element 344, water cooling plate 346. Detailed Implementation

[0058] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0059] 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 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 foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0060] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0061] In this document, the term "embodiment" 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 this phrase 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.

[0062] In the description of the embodiments in this application, 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 represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0063] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0064] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this application.

[0065] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0066] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0067] One existing battery cooling method is air cooling. Air cooling systems primarily use fans to force air through the gaps between individual cells or through ducts. During airflow, heat is exchanged between the air and the heat-generating components (individual cells), carrying away heat and achieving cooling. However, air cooling has two main problems: First, the heat exchange efficiency between air and individual cells is relatively low, resulting in a lower cooling effect than water cooling. Second, the airflow direction is difficult to control, making it difficult to target and cool the most heat-generating areas of individual cells, thus reducing the uniformity of cooling.

[0068] Another existing method for cooling batteries is water-cooled thermal management. Most battery packs in new energy vehicles use large square cells in groups. The water-cooling plates in these battery packs are all located at the bottom of the modules and are separate from the modules, which affects the overall thermal management performance of the pack and the lifespan of the cells, and also reduces the energy density of the battery pack.

[0069] When using water cooling, there are other options, such as placing the water cooling plate between individual battery cells or between multiple battery cells in a group. However, water cooling plates are typically not placed on the shoulders of battery cells where heat generation is high, such as around the terminals.

[0070] According to this application, a battery is provided in which a water-cooling device fully utilizes the space around the terminals and shoulders of the battery cells, enabling cooling of the shoulders of the battery cells while occupying little space and not reducing the battery's energy density. Furthermore, considering that different batteries may have different cell arrangements, corresponding shoulder water-cooling solutions are provided for different arrangements.

[0071] The battery cells disclosed in this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system for such an electrical device can be constructed using battery cells and batteries disclosed in this application. This helps to mitigate and automatically regulate the deterioration of cell expansion forces, thereby improving the stability of battery performance and battery life.

[0072] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0073] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0074] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery 100 is disposed inside the vehicle 1000, and the battery 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000; for example, the battery 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and driving.

[0075] In some embodiments of this application, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0076] Please refer to Figure 2 , Figure 2This is an exploded view of a battery 100 provided in some embodiments of this application. The battery 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 may include a first portion 11 and a second portion 12, which overlap each other, jointly defining a space for accommodating the battery cell 20. The second portion 12 may be a hollow structure with one open end, and the first portion 11 may be a plate-like structure, covering the open side of the second portion 12 so that the first portion 11 and the second portion 12 jointly define the space; alternatively, the first portion 11 and the second portion 12 may both be hollow structures with one open side, with the open side of the first portion 11 covering the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0077] In battery 100, there can be multiple battery cells 20, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 20 are connected in both series and parallel configurations. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed manner, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, battery 100 can also be composed of multiple battery cells 20 first connected in series, parallel, or in a mixed manner to form a battery module, and then multiple battery modules are connected in series, parallel, or in a mixed manner to form a whole, which is also housed within the housing 10. Battery 100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 20.

[0078] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0079] The following will describe in detail some embodiments according to the present application with reference to the accompanying drawings, so that those skilled in the art can clearly and completely understand the technical solutions of the present application.

[0080] According to some embodiments of this application, a battery 100 is provided, comprising: a housing 10; a plurality of battery cells 20 arranged in the housing 10, wherein shoulders 204 of the plurality of battery cells 20 are configured to form cooling channels 24; and a water-cooling device 30 configured to cool the plurality of battery cells 20. The water-cooling device 30 includes plate-shaped water-cooling elements 32 arranged in the cooling channels 24.

[0081] like Figure 3 , Figure 4 and Figure 5 As shown, Figure 3 An exploded perspective view of a battery 100 according to some embodiments of this application is shown. Figure 4 A perspective view of a battery 100 according to some embodiments of this application is shown. Figure 5 A top view of a battery 100 according to some embodiments of this application is shown, and additionally, as Figure 10 , Figure 11 and Figure 12 As shown, Figure 10 An exploded perspective view of a battery 100 according to some embodiments of this application is shown. Figure 11 An exploded front view of a battery 100 according to some embodiments of this application is shown. Figure 12 A top view of a battery 100 according to some embodiments of this application is shown, wherein the first portion 11 of the housing 10 is removed for clarity. The battery 100 may include the housing 10, a plurality of battery cells 20, and a water-cooling device 30. The housing 10 is configured to accommodate the battery cells 20 and the water-cooling device 30, and the first portion 11 and the second portion 12 of the housing 10, after being joined together, enclose the battery cells 20 and the water-cooling device 30 within the internal space of the housing 10.

[0082] The battery cells 20 can be arranged in the housing 10 in various suitable ways. For example, if the battery cells 20 have a square structure, they can be arranged in a flat or side-mounted manner in the housing 10, as described in the embodiments below. According to embodiments of this application, a plurality of battery cells 20 housed in the housing 10 are configured such that the shoulders 204 of each battery cell 10 form a cooling channel 24. Specifically, the shoulders 204 of all battery cells 20 together form a cooling channel 24, or a portion of the shoulders 204 of the battery cells 20 together form a cooling channel 24. These battery cells 20 can form one or more cooling channels 24. For example, the battery cells 20 can be divided into several groups, with the shoulders 204 of the battery cells 20 in each group forming a cooling channel 24.

[0083] As shown in the figure, each battery cell 20 may have two terminals 202. The side where these two terminals 202 are located is called the shoulder 204 of the battery cell 20, and the terminals 202 protrude from the shoulder 204. When two battery cells 20 are placed opposite each other such that their terminals 202 and shoulders 204 face each other, since the terminals 202 protrude from the shoulders 204, the shoulders 204 of the two battery cells 20 are at least twice the length of the protruding terminals 202. That is, the distance between the shoulders 204 of the two battery cells 20 is greater than or equal to twice the length of the protruding terminals 202, thereby forming a gap between the shoulders 204 of the two battery cells 20, which forms part of the cooling channel 24.

[0084] like Figure 6 , Figure 7 and Figure 8 As shown, Figure 6 A schematic diagram showing multiple battery cells 20 arranged in a horizontal position is shown. Figure 7 A top view of multiple battery cells 20 is shown. Figure 8 A side view of multiple battery cells 20 is shown. A battery cell 20 in a flat position means that the battery cell is placed flat inside the housing 10 (the housing is horizontal), with the terminals 202 of the battery cell 20 on its side, and the line connecting two terminals 202 is approximately horizontal. For example... Figure 13 , Figure 14 and Figure 15 As shown, Figure 13 A schematic diagram showing multiple battery cells 20 arranged in a side-mounted state is shown. Figure 14 A top view of multiple battery cells 20 is shown. Figure 15 Side views of multiple battery cells 20 are shown, in which a water-cooling device 30 is also shown in addition to the battery cells 20. The battery cells 20 are in a side-mounted state, meaning that the battery cells are placed in the housing 10 (the housing is placed horizontally) with their terminals 202 on the side and the line connecting two terminals 202 is approximately vertical.

[0085] Although the illustrated embodiments show the battery cell 20 in a flat and side-mounted state, those skilled in the art will understand that the battery cell 20 can be in any other suitable orientation within the housing 10, as long as cooling channels 24 for water cooling are formed between the shoulders 204 of the battery cell 20.

[0086] By forming cooling channels between the shoulders 204 of the battery cell 20, and taking advantage of the protruding characteristics of the terminal post 202, the space near the shoulders 204 can be fully utilized to form a water-cooling solution suitable for the shoulders 204, thereby improving the cooling effect of the battery.

[0087] According to some embodiments of this application, the plurality of battery cells 20 may be formed as one or more cell groups 22 arranged side by side. Each cell group 22 may include a first row of battery cells 222 and a second row of battery cells 224. The first row of battery cells 222 and the second row of battery cells 224 may be arranged such that the terminal post 202 of each battery cell 20 in the first row of battery cells 222 is opposite to the terminal post 202 of the corresponding battery cell 20 in the second row of battery cells 224, so as to form a cooling channel 24 between the first row of battery cells 222 and the second row of battery cells 224.

[0088] To make full use of the space within the housing 10, the battery cells 20 can typically be arranged in a regular pattern. In this case, the battery cells 20 can be grouped to make advantageous use of the space around the shoulder 204. Depending on the shape and size of the housing 10, the battery cells 20 can be divided into one or more groups, i.e., one or more cell groups 22, which can be arranged side by side to form a compact arrangement.

[0089] Each cell group 22 may include two rows of battery cells, namely, a first row of battery cells 222 and a second row of battery cells 224 as shown in the figure. These two rows of battery cells can be arranged side-by-side close to each other, spaced apart to form a gap between them. All battery cells 20 in the first row of battery cells 222 are arranged in the same orientation, such that the terminals 202 of all battery cells 20 are on the same side. Similarly, all battery cells 20 in the second row of battery cells 224 are arranged in the same orientation, such that the terminals 202 of all battery cells 20 are on the same side. With these two rows of battery cells arranged side-by-side, the terminals 202 of each battery cell 20 in the first row of battery cells 222 are opposite to the terminals 202 of the corresponding battery cell 20 in the second row of battery cells 224, thereby causing the shoulders 204 of the corresponding battery cells 20 to face each other, thus forming a cooling channel 24 between the first row of battery cells 222 and the second row of battery cells 224, specifically, between the shoulders 204 of each battery cell 20.

[0090] By grouping multiple battery cells 20, the space inside the housing 10 can be fully utilized to form a compact arrangement. At the same time, by arranging the battery cells 20 in rows within each group, cooling channels can be formed regularly, which is beneficial for the installation of water-cooling components 32, improves the cooling effect, and does not waste space.

[0091] According to some embodiments of this application, the battery cells 20 in each cell group 22 can be in a flat state, wherein two or more flat battery cells 20 can be stacked and arranged side by side to form a first row of battery cells 222 and a second row of battery cells 224 respectively.

[0092] like Figures 3 to 8 The illustration shows an embodiment where the battery cell 20 is in a flat position. When the battery cell 20 is in a flat position, several battery cells 20 can be stacked vertically. In the illustrated embodiment, two battery cells 20 are shown stacked together; however, those skilled in the art will understand that more battery cells 20 can be stacked, or the battery cells 20 may not be stacked. For clarity, the following description pertains to the case of two battery cells 20 stacked, but it also applies to cases of multiple battery cells stacked or battery cells not stacked.

[0093] like Figure 8 As shown, the stacking arrangement of the battery cells 20 can be seen more clearly from the side view. In the flat position, two battery cells 20 are stacked vertically, with the two terminals 202 of each battery cell 20 arranged horizontally, and the terminals 202 of the two battery cells 20 arranged vertically and can be vertically aligned.

[0094] like Figure 7 As shown, after two battery cells 20 are stacked, the stacked battery cells 20 can be arranged side by side to form a first row of battery cells 222 and a second row of battery cells 224. This side-by-side arrangement can be aligned, i.e., the battery cells 20 are aligned with each other in, for example, a horizontal direction, such that the terminals 202 of all battery cells 20 in a row are aligned with each other, for example, approximately in the same plane. The terminals 202 and shoulders 204 of the battery cells 20 in the two rows are arranged opposite each other to form a cooling channel 24 therebetween.

[0095] The battery cells 20 are stacked and arranged side by side in a flat state, which can make full use of the space inside the box 10 and facilitates a compact arrangement. At the same time, this regular arrangement is conducive to the arrangement and distribution of water cooling devices.

[0096] According to some embodiments of this application, the battery cells 20 in each cell group 22 can be in a side-mounted state, wherein multiple side-mounted battery cells 20 can be arranged side by side to form a first row of battery cells 222 and a second row of battery cells 224 respectively.

[0097] like Figures 10 to 15The diagram illustrates an embodiment where the battery cell 20 is in a side-mounted state. In this side-mounted state, several battery cells 20 can be arranged side-by-side, for example, in a horizontal direction, to form a first row of battery cells 222 and a second row of battery cells 224. This side-by-side arrangement can be aligned, i.e., the battery cells 20 are aligned with each other, for example, in a horizontal direction, such that the terminals 202 of all battery cells 20 in a row are aligned with each other, for example, substantially in the same plane and extending horizontally. The terminals 202 and shoulders 204 of the battery cells 20 in the two rows are arranged opposite each other to form a cooling channel 24 therebetween.

[0098] The battery cells 20 are arranged side by side in the side-mounted state, which can make full use of the space inside the box 10 and facilitates a compact arrangement. At the same time, this regular arrangement is conducive to the arrangement and distribution of the water cooling device.

[0099] According to some embodiments of this application, the water-cooling element 32 can be arranged between the two terminals 202 of the battery cell 20.

[0100] like Figures 3 to 9 As shown, when the battery cells 20 are in a flat position, the battery cells 20 of each cell group 22 can be stacked first, and then arranged side by side in two rows, or the battery cells 20 can be arranged side by side in two rows without stacking. A water-cooling element 32 can be inserted from above between the two terminals 202 of each battery cell 20. Without stacking, a single water-cooling element 32 can be arranged in the space surrounded by the terminals 202 and shoulders 204 of a single battery cell 20. When the battery cells 20 are stacked and aligned, a single water-cooling element 32 can be arranged in the space surrounded by the terminals 202 and shoulders 204 of several opposing, stacked battery cells 20. Multiple water-cooling elements 32 can be arranged in each cell group 22, each water-cooling element 32 arranged in the space surrounded by the terminals 202 and shoulders 204 of the battery cell 20. The number of water-cooling elements 32 can correspond to the number of battery cells 20 arranged side by side, so that water-cooling elements 32 are arranged in the space surrounded by the terminal post 202 and the shoulder 204 of each battery cell 20.

[0101] like Figures 10 to 17As shown, when the battery cells 20 are in a side-mounted state, the battery cells 20 of each cell group 22 can be arranged side-by-side in two rows. Due to the side-mounted nature, the terminals 202 of the several battery cells 20 arranged side-by-side extend in, for example, a horizontal direction, forming a continuous channel between the terminals 202 and the shoulders 204. A water-cooling element 32 can be arranged in this continuous channel. In this way, the first row of battery cells 222 and the second row of battery cells 224 in each cell group 22 can form a single channel surrounded by the terminals 202 and the shoulders 204, and a single water-cooling element 32 can be arranged in this single channel, so that a water-cooling element 32 is arranged near the shoulder 204 of each battery cell 20 for water cooling.

[0102] Since the terminal post 202 of the battery cell 20 protrudes outward from the shoulder 204, when the battery cells 20 are arranged relative to each other, the terminal post 202 will occupy part of the space between the shoulders 204. The water-cooling element 32 is arranged between the two terminal posts 202 of the battery cell 20. The thickness of the water-cooling element 32 can be comparable to the size of the gap between the shoulders 204, which is conducive to realizing water cooling of the shoulders 204 of the battery cell 20. At the same time, it occupies little space and does not reduce the energy density of the battery pack.

[0103] By arranging the water-cooling element 32 between the two terminals 202 of the battery cell 20, the space between the shoulders 204 of the battery cell 20 can be fully utilized to improve the water-cooling effect.

[0104] According to some embodiments of this application, the water cooling device 30 may include a water cooling frame 34, which may be arranged around the plurality of battery cells 20, and the water cooling element 32 may be connected to the water cooling frame 34.

[0105] like Figure 9 , Figure 16 and Figure 17 As shown, the water-cooling frame 34 is used to connect and communicate the water-cooling components 32 to each other. On the one hand, it provides support and fixation for the water-cooling components 32; on the other hand, it can be used to form a complete water-cooling circuit. Each water-cooling component 32 can be connected to the water-cooling frame 34 so that it is supported by the water-cooling frame 34, allowing the water-cooling components 32 to be held in place within the cooling channel 24 formed by the battery cell 20. The water-cooling components 32 can be in fluid communication with the water-cooling frame 34 so that cooling liquid can flow between them, thereby facilitating the formation of a water-cooling circuit. When the water-cooling components 32 are arranged in the cooling channel 24 formed by the battery cell 20, the water-cooling frame 34 can be arranged around the battery cell 20, for example, above, below, or to the side of each cell group 22, and close to the battery cell 20, in order to save space and facilitate cooling of the battery cell 20.

[0106] By providing a water-cooling frame 34, support can be provided for the water-cooling component 32, which is beneficial for the positioning of the water-cooling component 32 in the cooling channel 24 and for the formation of a water-cooling circuit.

[0107] According to some embodiments of this application, each cooling channel 24 may be provided with a plurality of water-cooling elements 32, and the water-cooling elements 32 in each cooling channel 24 may be connected to each other through the upper frame element 342 above the battery cell 20, and the upper frame element 342 may be connected to each other through the side frame element 344 on the side of the battery cell 20.

[0108] like Figures 3 to 9 As shown above, when the battery cell 20 is in a flat position, the water-cooling element 32 can be inserted from above between the two terminals 202 of each battery cell 20. Multiple water-cooling elements 32 can be arranged in each cell group 22, each water-cooling element 32 being arranged in the space surrounded by the terminals 202 and the shoulder 204 of the battery cell 20. The number of water-cooling elements 32 can correspond to the number of battery cells 20 arranged side-by-side, such that a water-cooling element 32 is arranged in the space surrounded by the terminals 202 and the shoulder 204 of each battery cell 20.

[0109] In the case where each cooling channel 24 has multiple water-cooling elements 32, these water-cooling elements 32 can be connected to each other via an upper frame element 342 above the battery cell 20 to provide support and fixation for the water-cooling elements 32, allowing them to remain in place within the cooling channel 24 formed by the battery cell 20. The upper frame element 342 can be connected to each other via side frame elements 344 on the sides of the battery cell 20 to provide support and fixation for the upper frame element 342, while also facilitating the formation of a water-cooling circuit. The upper frame element 342 can be arranged generally above or below the battery cell 20, and the side frame element 344 can be arranged generally on the sides of the battery cell 20 to save space and facilitate cooling of the battery cell 20.

[0110] Each cooling channel 24 is equipped with multiple water-cooling elements 32, which can be adapted to the case where the battery cell 20 is in a flat position, so as to save space and facilitate the cooling of the battery cell 20.

[0111] According to some embodiments of this application, each cooling channel 24 may be provided with a water-cooling element 32, and the water-cooling elements 32 in each cooling channel 24 may be connected to each other through the side frame element 344 on the side of the battery cell 20.

[0112] like Figures 10 to 17As shown above, when the battery cell 20 is in a side-mounted state, the terminals 202 of several battery cells 20 arranged side-by-side extend in, for example, a horizontal direction, forming a continuous channel between the terminals 202 and the shoulder 204. A water-cooling element 32 can be arranged in this continuous channel. Thus, the first row of battery cells 222 and the second row of battery cells 224 in each cell group 22 can form a single channel surrounded by the terminals 202 and the shoulder 204, and a single water-cooling element 32 can be arranged in this single channel, such that a water-cooling element 32 is arranged near the shoulder 204 of each battery cell 20 for water cooling.

[0113] With one water-cooling element 32 in each cooling channel 24, the water-cooling elements 32 can be connected to each other via side frame elements 344 on the side of the battery cell 20 to provide support and fixation for the water-cooling elements 32, so that the water-cooling elements 32 can be held in place in the cooling channel 24 formed by the battery cell 20, while facilitating the formation of a water-cooling circuit. The side frame elements 344 can be arranged generally on the side of the battery cell 20 to save space and facilitate the cooling of the battery cell 20.

[0114] Each cooling channel 24 is equipped with a water-cooling element 32, which can be adapted to the case where the battery cell 20 is in a side-mounted state, so as to save space and facilitate the cooling of the battery cell 20.

[0115] According to some embodiments of this application, the water cooling device 30 may further include a water cooling plate 346, which may be arranged above or below the plurality of battery cells 20, and the water cooling element 32 may be connected to the water cooling plate 346.

[0116] like Figure 18 As shown, the water-cooling plate 346 can be a single plate to which all the water-cooling components 32 can be connected, providing support and fixation for the water-cooling components 32. This allows the water-cooling components 32 to remain in place within the cooling channel 24 formed by the battery cell 20, while also facilitating the formation of a water-cooling circuit. A single water-cooling plate 346 can substantially completely cover the entire battery cell 20, providing additional cooling for the battery cell 20.

[0117] By setting up the water-cooling plate 346, support and fixation can be provided for the water-cooling element 32, while providing additional cooling effect for the battery cell 20.

[0118] According to some embodiments of this application, this application also provides an electrical device including a battery as described in any of the above embodiments, and the battery is used to provide electrical energy to the electrical device.

[0119] The power supply device can be a device or system that uses the battery of any of the foregoing embodiments.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not 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 or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery (100) characterized in that, The battery (100) comprises: a case (10); a plurality of battery cells (20) arranged in the case (10), and shoulder portions (204) of the plurality of battery cells (20) are configured to form cooling channels (24); and a water cooling device (30) configured to cool the plurality of battery cells (20); wherein the water cooling device (30) comprises plate-shaped water cooling elements (32) arranged in the cooling channels (24).

2. The battery (100) according to claim 1, characterized in that The plurality of battery cells (20) are formed into one or more cell groups (22) arranged side by side, each cell group (22) comprising a first row of battery cells (222) and a second row of battery cells (224) arranged such that a pole (202) of each battery cell (20) in the first row of battery cells (222) opposes a pole (202) of a corresponding battery cell (20) in the second row of battery cells (224) to form the cooling channels (24) between the first row of battery cells (222) and the second row of battery cells (224).

3. The battery (100) according to claim 2, characterized in that The battery cells (20) in each cell group (22) are in a flat state, in which two or more flat battery cells (20) are arranged in a stack, the stacked battery cells (20) being arranged side by side to form the first row of battery cells (222) and the second row of battery cells (224), respectively.

4. The battery (100) of claim 2, wherein, The battery cells (20) in each cell group (22) are in a side state, in which a plurality of side battery cells (20) are arranged side by side to form the first row of battery cells (222) and the second row of battery cells (224), respectively.

5. The battery (100) of claim 1, wherein, The water cooling elements (32) are arranged between the two poles (202) of the battery cells (20).

6. The battery (100) according to any one of claims 1 to 5, characterized in that The water cooling device (30) comprises a water cooling frame (34) arranged around the plurality of battery cells (20), and the water cooling elements (32) are coupled to the water cooling frame (34).

7. The battery (100) according to any one of claims 1 to 5, characterized in that A plurality of water cooling elements (32) are provided in each cooling channel (24), and the water cooling elements (32) in each cooling channel (24) are coupled to each other by an upper frame element (342) above the battery cells (20), and the upper frame elements (342) are coupled to each other by a side frame element (344) on the side of the battery cells (20).

8. The battery (100) according to any one of claims 1 to 5, characterized in that A plurality of water cooling elements (32) are provided in each cooling channel (24), and the water cooling elements (32) in each cooling channel (24) are coupled to each other by a side frame element (344) on the side of the battery cells (20).

9. The battery (100) according to any one of claims 1 to 5, characterized in that The water cooling device (30) further comprises a water cooling plate (346) arranged above or below the plurality of battery cells (20), and the water cooling elements (32) are coupled to the water cooling plate (346).

10. An electrical device, characterized by The electrical consumer comprises a battery (100) according to any one of claims 1 to 9, the battery (100) being configured to provide electrical energy.

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