Battery, energy storage device and electrical device

Abstract

Battery, wherein the battery comprises battery cells, a first housing part, a second housing part and a flow channel; the first housing part and the second housing part are connected to each other to form a closed space for housing the battery cells; and the flow channel serves to hold a heat exchange medium in order to regulate the temperature of the battery cells; wherein the battery further comprises an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe both being connected to the flow channel, and the inlet pipe and the outlet pipe both being located on the side of the first housing part facing the second housing part and being positioned outside the enclosed space.

Description

AREA OF INVENTION

[0001] The present application relates to the field of battery technology, specifically to a battery, an energy storage device and an electrical device. STATE OF THE ART

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

[0003] As part of the development of battery technology, the question of how to increase the energy density of the battery is a technical problem that urgently needs to be solved. REVELATION OF THE INVENTION

[0004] The present application provides a battery, an energy storage device, and an electrical device. The technical solution provided by the present application enables the energy density of batteries to be increased.

[0005] This application will be implemented using the following technical solution: According to a first aspect, the present application provides a battery, wherein the battery comprises battery cells, a first housing part, a second housing part and a flow channel; the first housing part and the second housing part are connected to each other to jointly form an enclosed space for receiving the battery cells; and the flow channel serves to receive a heat exchange medium in order to regulate the temperature of the battery cells; wherein the battery further comprises an inlet tube and an outlet tube, the inlet tube and the outlet tube both being connected to the flow channel, and the inlet tube and the outlet tube both being located on the side of the first housing part facing the second housing part and being positioned outside the enclosed space.

[0006] In the solution described above, the inlet and outlet pipes are located on the side of the first housing part facing the second housing part and are positioned outside the enclosed space. The available vertical space within the second housing part itself allows for connection to and disconnection from external lines, thus facilitating connection and disconnection of the battery. Furthermore, no additional space needs to be provided within the battery for connecting and disconnecting the inlet and outlet pipes to external lines, consequently allowing for the accommodation of more battery cells and thus increasing the volumetric energy density of the battery.

[0007] According to some embodiments of the present application, the first housing part comprises a bottom and the bottom is arranged in the thickness direction relative to the second housing part; and the inlet pipe and the outlet pipe are both arranged obliquely or perpendicularly to the bottom.

[0008] In the solution described above, the direction for connecting the inlet pipe and the outlet pipe to the external lines, as well as disconnecting them, is at an angle or perpendicular to the ground, in order to make efficient use of the battery's vertical space for connecting and disconnecting, without requiring additional space, thus increasing the battery's energy density.

[0009] According to some embodiments of the present application, the inlet pipe and the outlet pipe do not extend beyond the second housing part along the bottom in the direction of the second housing part.

[0010] In the solution described above, by positioning the inlet pipe and the outlet pipe in such a way that they do not protrude beyond the second housing part, the point where the inlet pipe and the outlet pipe are connected to and disconnected from the external lines is located within the height range of the battery.

[0011] According to some embodiments of the present application, the flow channel is formed inside the floor and the inlet pipe and the outlet pipe are both arranged on the floor.

[0012] In the solution described above, by arranging the flow channel inside the base, the base not only supports the battery cells but can also regulate the temperature of the battery cells, thus simplifying the battery's construction and effectively increasing its energy density.

[0013] According to some embodiments of the present application, the connection point between the inlet pipe and the floor, as well as the connection point between the outlet pipe and the floor, are both located outside the enclosed space.

[0014] In the solution described above, the connection point between the inlet tube and the base, as well as the connection point between the outlet tube and the base, are located outside the enclosed space, thus avoiding the need to provide openings in the first housing part or second housing part to lead the inlet tube and the outlet tube outside the enclosed space, thereby eliminating the step of sealing the openings and increasing the energy density of the battery.

[0015] According to some embodiments of the present application, the base comprises a first base plate and a second base plate arranged one above the other, the second base plate is arranged on the side of the first base plate facing away from the second housing part, and the flow channel is formed between the second base plate and the first base plate.

[0016] In the solution described above, the first base plate and the second base plate are arranged one above the other to form the flow channel, which simplifies the construction of the base and facilitates manufacturing.

[0017] According to some embodiments of the present application, a groove is formed on the surface of the second base plate facing the first base plate, and the surface of the first base plate facing the first base plate together with the groove forms the flow channel.

[0018] In the solution described above, a groove is formed on the surface of the second base plate to form the flow channel together with the first base plate, allowing the heat exchange medium to effectively regulate the temperature of the battery cells, thus increasing the reliability of the battery.

[0019] According to some embodiments of the present application, the first housing part further comprises a first side wall, the first side wall is arranged at the edge of the bottom and the first side wall is connected to the second housing part.

[0020] In the solution described above, a first side wall is arranged at the bottom, which improves the strength of the structure of the first housing part and ensures that the battery has a relatively large enclosed space, so that consequently more battery cells can be accommodated and the volumetric energy density of the battery increases.

[0021] According to some embodiments of the present application, the first side wall has an open construction along the perimeter of the base.

[0022] In the solution described above, the first side wall is configured as an open structure, which on the one hand ensures that the first housing part has a certain strength appropriate to the requirements; on the other hand, if the flow channel is formed inside the base, the inlet pipe and the outlet pipe can be arranged on the base where there is no first side wall, in order to prevent the flow resistance from increasing due to the arrangement of the first side wall, which would prevent the heat exchange medium from flowing through the inlet pipe and the outlet pipe;Furthermore, since there is no first side wall at part of the edge of the base, there is no draft angle at the corresponding point of the first housing part (i.e., a first side wall is arranged at the base and the first side wall is inclined to the base), so that there is no impairment of the battery cells and the utilization of the enclosed space is improved, giving the battery a relatively high volumetric energy density.

[0023] According to some embodiments of the present application, the bottom comprises a first region and a second region, the first region and the second region are arranged side by side in a first direction, the first side wall is arranged at the edge of the first region and the first side wall is not arranged at the edge of the second region, and the first direction is perpendicular to the thickness direction of the bottom; and the inlet pipe and the outlet pipe are both located in the second region.

[0024] In the solution described above, the vertical space of the first housing part is determined by a first side wall. Therefore, the inlet pipe and the outlet pipe are arranged in the second area, which does not have a first side wall. This allows the vertical space of the first and second housing parts to be used for connecting to and disconnecting from the external lines, thus making good use of the battery's height and facilitating connection and disconnection.

[0025] According to some embodiments of the present application, the first area comprises a first edge and two second edges, the two second edges are arranged opposite each other in a second direction, the first edge is connected to the two second edges, the first side wall is arranged at the first edge and the two second edges, and the second direction is perpendicular to the thickness direction of the base.

[0026] In the solution described above, the first side wall is positioned at the first edge and at the two second edges, which improves the strength of the structure of the first housing part and increases the structural strength of the battery, so that the battery cells have a relatively high reliability.

[0027] According to some embodiments of the present application, the two second edges both extend along the first direction and the first direction, the second direction and the thickness direction of the soil are each perpendicular to each other.

[0028] In the solution described above, the first direction, the second direction and the thickness direction of the base are each perpendicular to each other, which is why the first housing part has a rectangular shape, whereby a rectangular housing part can be manufactured more efficiently compared to a non-rectangular housing part, which increases the production efficiency of the battery and allows for the inclusion of more battery cells.

[0029] According to some embodiments of the present application, the first housing part further comprises a first flange, the first flange extends outwards from the end of the first side wall furthest from the ground and the first side wall is connected to the second housing part via the first flange.

[0030] In the solution described above, the first side wall and the second housing part can be effectively connected by attaching a first flange, so that there is a stable and tight connection between the first side wall and the second housing part, which increases the reliability of the battery cells in the enclosed space.

[0031] According to some embodiments of the present application, the second housing part comprises a top wall, a second side wall and a second flange, the second side wall is arranged at the edge of the top wall and the second flange extends outwards from the end of the second side wall furthest from the top wall; and the second flange is connected to the edge of the bottom without the first side wall and to the first flange.

[0032] In the solution described above, the second housing part is connected to the edge of the base (without a first side wall) and the first flange via the second flange, thus improving the sealing of the first and second housing parts. Furthermore, the second side wall is arranged around the edge of the top wall to form a chamber and consequently increase the volume of the enclosed space, allowing for more battery cells to be accommodated, resulting in a relatively high volumetric energy density for the battery.

[0033] According to some embodiments of the present application, the second housing part comprises a top wall, a second side wall and a second flange, the second side wall is arranged at a part of the edge of the top wall and the second flange extends outwards from the end of the second side wall furthest from the top wall; and the second flange is connected to the edge of the bottom excluding the first side wall and the edge of the top wall excluding the second side wall is connected to the first flange.

[0034] In the solution described above, the main component of the second housing part is plate-shaped, and a second side wall is arranged on part of the edge of the main component at the location corresponding to the first housing part without a side wall. This results in a simple structure for the second housing part, which has the advantage of low material costs. Furthermore, the second housing part is connected to the edge of the base (without a first side wall) via the second flange and to the first flange via the edge of the plate-shaped top wall. This improves the sealing of both the first and second housing parts, consequently increasing the reliability of the battery.

[0035] According to some embodiments of the present application, the second housing part comprises an upper wall, a second side wall and a second flange, the second side wall is arranged at the edge of the upper wall and the second flange extends outwards from the end of the second side wall furthest from the upper wall; and the second flange is provided with a first recess and a second recess and the inlet pipe and the outlet pipe pass through the first recess and through the second recess, respectively.

[0036] In the solution described above, the tightness of the first and second housing parts can be improved by providing a second flange, thus increasing the tightness of the battery, and the impairment of the battery's tightness by the inlet and outlet pipes is reduced by providing a first and a second recess to make room for the inlet pipe and outlet pipe respectively.

[0037] According to some embodiments of the present application, the first recess and the second recess are recesses provided in the edge of the second flange.

[0038] In the solution described above, the first recess and the second recess are recesses formed in the edge of the second flange, which can be formed in a simple and practical way.

[0039] According to some embodiments of the present application, the battery further comprises a thermal management component, wherein the flow channel is arranged on the thermal management component, the thermal management component is located inside the enclosed space, and the inlet pipe and the outlet pipe are both arranged on the thermal management component.

[0040] In the solution described above, by providing an independent component for thermal management to regulate the temperature of the battery cells, the battery achieves a relatively high reliability.

[0041] According to a second aspect, the present application further provides an energy storage device comprising a battery according to one of the embodiments of the first aspect.

[0042] According to a third aspect, the present application further provides an electrical device comprising a battery according to one of the embodiments of the first aspect, wherein the battery serves to provide electrical energy.

[0043] The above description merely provides an overview of the technical solution of the present application. To make the technical procedures of the present application more clearly understandable and to enable implementation in accordance with the contents of the description, and to make the aforementioned and other objectives, features and advantages of the present application easier to understand, specific examples of implementation of the present application are listed below. DESCRIPTION OF THE FIGURES

[0044] To illustrate the technical solutions of the embodiments of the present application more clearly, a simple presentation of the figures to be used for the embodiments follows, whereby it should be pointed out that the following figures only show certain embodiments according to the present application, so that they are consequently not to be regarded as limiting the scope, and that those skilled in the art in this field can derive further figures from these figures without inventive effort. Fig. Figure 1 shows a schematic representation of the structure of the vehicle of some embodiments of the present application; Fig. Figure 2 shows a 3D view of the battery of some embodiments of the present application; Fig. Figure 3 shows a 3D exploded view of the battery of some embodiments of the present application; Fig. Figure 4 shows a schematic representation of the first housing part, the inlet pipe and the outlet pipe of some embodiments of the present application; Fig. Figure 5 shows a partial sectional view of the first housing part of some embodiments of the present application; Fig. Figure 6 shows a 3D exploded view of the battery of some further embodiments of the present application; Fig. 7 shows a top view of the first housing part of some embodiments of the present application; Fig. Figure 8 shows an enlarged view of point A. Fig. 3; Fig. Figure 9 shows a 3D exploded view of the battery of some further embodiments of the present application.

[0045] Reference symbols: 100 - battery; 10 - battery cell; 20 - first housing part; 21 - bottom; 22 - first side wall; 23 - first flange; 210 - first base plate; 211 - second base plate; 212 - first area; 2120 - first edge; 2121 - second edge; 213 - second area; 2110 - groove; 30 - second housing part; 31 - top wall; 32 - second side wall; 33 - second flange; 330 - first recess; 331 - second recess; 40 - flow channel; 50 - inlet pipe; 60 - outlet pipe; 70 - thermal management component; 80 - gasket; x - first direction; y - second direction; z - thickness direction; 1000 - vehicle; 200 - control unit; 300 - motor. DETAILED DESCRIPTION OF THE EXECUTION FORMS

[0046] To better clarify the objectives, technical solutions, and advantages of the embodiments of the present application, the technical solutions from the embodiments of the present application are clearly described below in combination with the figures of the embodiments of the present application. It is understood that the described embodiments represent a subset of the embodiments of the present application and not all of them. All further embodiments that ordinary people skilled in the art in this field derive from the embodiments of the present application without inventive effort fall within the scope of protection of the present application.

[0047] Unless otherwise specified, all technical and scientific terms used in this application have the same meaning as they would normally be understood by those skilled in the technical field of this application; the technical terms used in the description of this application serve only to explain the objective of the specific embodiment and not to limit the scope of this application; the terms "comprise" and "include" and all variations of these terms in the description, the claims, and the preceding explanations of the figures of this application are intended to express non-exclusive inclusion. The terms "first", "second", etc.The figures used in the description, claims, and preceding explanations of the figures in this application serve to distinguish between different objects and not to describe a specific sequence or a primary / secondary relationship. When this application refers to an "embodiment," this means that the features, structures, or characteristics described by means of the embodiment may be included in at least one of the embodiments of this application. The occurrence of this term in different places in the description does not necessarily always refer to the same embodiment, nor does it denote an independent or alternative embodiment that is mutually exclusive with other embodiments.Experts in this field understand, both explicitly and implicitly, that the embodiments described in the present application can be combined with other embodiments.

[0048] It should be noted that, unless otherwise expressly stated and determined, the technical terms "attached / attached", "connected / connection", "connected / connection", and "fastened", etc., in the descriptions of this application are to be understood in a broader sense; for example, they may refer to a permanent connection, a detachable connection, or a bonded connection; they may refer to a direct connection or an indirect connection via an intermediate element, or to a connection of the interior of two components. Those skilled in the art in this field will be able to understand the specific meaning of the aforementioned technical terms in the embodiments of this application, depending on the context.

[0049] The term "and / or" in this application serves only to describe the correlation of related objects, expressing that there can be three types of relationships. For example, A and / or B expresses the following three cases: A exists, A and B exist simultaneously, and B exists. Furthermore, the symbol " / " in this application generally means that the successive related objects are in an "or" relationship to each other.

[0050] The battery according to the embodiments of the present application comprises one or more battery cells to provide a single physical module with higher voltage and capacity. For example, the battery according to the embodiments of the present application may comprise one or more battery cells. The battery further comprises a first housing part and a second housing part, wherein the first housing part and the second housing part are connected to each other to form a closed space, and the battery cells are housed in the closed space to prevent liquids or other foreign matter from interfering with the charging or discharging of the battery cells.

[0051] Battery technology development requires the simultaneous consideration of several different design factors, such as performance parameters like energy density, cycle life, discharge capacity, and charge / discharge rates. Battery reliability must also be taken into account. For example, thermal runaway can lead to ignition and explosion, severely compromising battery reliability. Thermal runaway occurs when the heat generation rate of the battery cells significantly exceeds the heat dissipation rate, resulting in a large accumulation of heat that is not dissipated in time. To further improve battery reliability, batteries typically incorporate a flow channel.The flow channel serves to hold a heat exchange medium in order to regulate the temperature of the battery cells and thus ensure that the battery operates within a suitable temperature range, thereby maintaining relatively high reliability. The heat exchange medium can be a fluid (liquid) or a gas, with temperature regulation meaning that the multiple battery cells are heated or cooled. The fluid can be water, a mixture of water and ethylene glycol, air, etc.

[0052] The battery can further comprise an inlet pipe and an outlet pipe, wherein the inlet pipe and the outlet pipe are both connected to the flow channel and are positioned outside the enclosed space, the inlet pipe and the outlet pipe are connected via external lines to a storage container (for example, a water tank) filled with the heat exchange medium, the heat exchange medium flows into the flow channel via the inlet pipe to regulate the temperature of the battery cells, and the heat exchange medium can be drained via the outlet pipe after heat exchange with the battery cells, so that the heat exchange medium circulates to achieve a better temperature control result.

[0053] As part of the development of battery technology, the question of how to increase the energy density of the battery is a technical problem that urgently needs to be solved.

[0054] The inventors have found that the inlet and outlet pipes are currently both arranged laterally (perpendicular to the battery height) on the battery, i.e., horizontally, so that the external leads can be connected to and disconnected from the inlet and outlet pipes horizontally from the battery side. However, when the battery is used in an energy storage device or an electrical appliance, the horizontal space provided to the battery by the energy storage device or electrical appliance is relatively small due to the required compact design. Therefore, in some batteries, to ensure the trouble-free connection and disconnection of the external leads to the inlet and outlet pipes, volume of the enclosed space is sacrificed to provide additional space for connection and disconnection, resulting in a reduction of the battery's energy density.

[0055] Against this background, the inventors conducted in-depth investigations to increase the energy density of batteries and designed a battery in which the inlet tube and the outlet tube of the battery are both located on the side of the first housing part facing the second housing part, in order to use the space of the battery itself in the vertical direction when connecting to and disconnecting from the external leads, without having to provide additional space for connecting and disconnecting, thus the battery cells consequently have a relatively high volumetric energy density and connecting and disconnecting can be carried out without problems.

[0056] The battery according to the embodiments of the present application can, but is not limited to, be used in energy storage devices such as battery cabinets, container storage devices, etc. The energy storage device can comprise several batteries disclosed in the present application.

[0057] The battery disclosed in the embodiments of the present application can, but is not limited to, be used in electrical devices such as vehicles, ships, aircraft, etc. Batteries disclosed in the present application can be used to form the power supply system of the electrical device in question.

[0058] The embodiments of the present application provide an electrical device with a battery for power supply, wherein the electrical device may, but is not limited to, be a mobile phone, a tablet computer, a notebook computer, an electric toy, a power tool, an electric bicycle, an electric motorcycle, an electric vehicle, a ship, a spacecraft, etc. The electric toy may be a stationary or a mobile toy, such as a game console, an electric toy car, an electric toy ship, and an electric toy airplane, etc., and the spacecraft may be an airplane, a rocket, a space glider, a spacecraft, etc.

[0059] In the following exemplary embodiments, for the purpose of simple explanation, the explanation is given using a vehicle 1000 as an example of an electrical device according to an exemplary embodiment of the present application.

[0060] See Fig. 1, Fig. Figure 1 shows a schematic representation of the structure of the vehicle in some embodiments of the present application. The vehicle 1000 can be a vehicle with an internal combustion engine, a gas-powered vehicle, or a vehicle with alternative drive technologies, and the vehicle with alternative drive technologies can be a pure electric vehicle, a hybrid vehicle, or a long-range vehicle. A battery 100 is arranged inside the vehicle 1000, wherein the battery 1000 can be located in the lower region, the upper region, or the rear region of the vehicle 1000.The battery 100 can be used to supply power to the vehicle 1000; for example, the battery 100 can serve as the operating power supply for the vehicle 1000 and be used for the electrical circuit system of the vehicle 1000, for example, for the operating power requirements for starting, navigation, and operation of the vehicle 1000.

[0061] The vehicle 1000 can further comprise a control unit 200 and a motor 300, wherein the control unit 200 serves to control the power supply of the motor 300 by the battery 100, for example for the operating current requirement for starting, navigation and driving the vehicle 1000.

[0062] In some embodiments of the present application, the battery 100 can not only serve as the operating current supply of the vehicle 1000, but also as the drive current supply of the vehicle 1000 and thus partially or completely replace fuel or gas in order to provide the vehicle 1000 with drive power.

[0063] According to some embodiments of the present application, the present application provides a battery 100 and, see Fig. 2 and Fig. 3, Fig. Figure 2 shows a 3D view of the battery of some embodiments of the present application; Fig. Figure 3 shows a 3D exploded view of the battery 100 of some embodiments of the present application. The battery 100 comprises battery cells 10, a first housing part 20, a second housing part 30 and a flow channel 40 (in Fig. 3 not shown, see Fig. 6).

[0064] The first housing part 20 and the second housing part 30 are connected to each other to form a closed space for housing the battery cells 10. The flow channel 40 serves to hold a heat exchange medium to regulate the temperature of the battery cells 10. The battery 100 further comprises an inlet pipe 50 and an outlet pipe 60. Both the inlet pipe 50 and the outlet pipe 60 are connected to the flow channel 40 and are located on the side of the first housing part 20 facing the second housing part 30, and are positioned outside the closed space.

[0065] The first housing part 20 and the second housing part 30 are connected to each other to jointly define an enclosed space for housing the battery cells 10. The enclosed space is a room for housing the battery cells 10 that physically isolates the battery cells 10 from the external environment to prevent impairment of the battery cells 10 by external contaminants and thus serves to protect the battery cells 10.

[0066] The first housing part 20 and the second housing part 30 can be made of materials such as aluminum, aluminum alloy, or stainless steel. The first housing part 20 and the second housing part 30 can be made of the same material to facilitate joining; for example, the first housing part 20 and the second housing part 30 are both made of an aluminum alloy. The first housing part 20 and the second housing part 30 can be joined by welding, bonding, or using fasteners.The first housing part 20 and the second housing part 30 can be the upper housing part and the lower housing part, respectively, of the battery 100, wherein, if the first housing part 20 is the lower housing part, the second housing part 30 is consequently the upper housing part; and if the first housing part 20 is the upper housing part, the second housing part 30 is consequently the lower housing part. As in . Fig. As shown in Figure 3, the first housing part 20 is located below the second housing part 30, so that the first housing part 20 is the lower housing part.

[0067] In battery 100, the number of battery cells 10 can be one, but it can also be multiple. The multiple battery cells 10 can be connected in series, in parallel, or in a mixed arrangement, where mixed arrangement means that the multiple battery cells 10 are connected in a combination of series and parallel connections. The multiple battery cells 10 can be connected directly in series, in parallel, or in a mixed arrangement, in which case the unit formed from the multiple battery cells 10 is housed in an enclosed space. Battery 100 can also include further components; for example, it can also include current collection components that serve to electrically connect the multiple battery cells 10.The battery cells 10 can be a secondary battery or a primary battery; the battery cells 10 can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but are not limited to these.

[0068] The flow channel 40 can be a component that serves to receive and channel the heat exchange medium. The heat exchange medium can be a fluid (a liquid) or a gas, whereby temperature control means performing a heat exchange with the battery cells 10, in which heat from the battery cells 10 is absorbed to cool them, or heat is supplied to the battery cells 10 to heat them. The fluid can optionally be water, a mixture of water and ethylene glycol, air, etc.

[0069] The inlet pipe 50 and the outlet pipe 60 are components connected to the flow channel 40. Both the inlet pipe 50 and the outlet pipe 60 can be connected to external lines, allowing the heat exchange medium to enter the flow channel 40 via the inlet pipe 50 and exit the flow channel 40 via the outlet pipe 60. The inlet pipe 50 and the outlet pipe 60 can be connected to external lines via push-fit connections. One end of the inlet pipe 50 is connected to the flow channel 40, while the other end is open. The orientation of the open end can correspond to the connection and disconnection of the inlet pipe 50 to the external lines.One end of the outlet pipe 60 is connected to the flow channel 40, the other end is open, the orientation of which can correspond to the direction of connection of the outlet pipe 60 to and separation from the external lines. In some embodiments, the external lines can be tubular structures, such as hoses, rigid pipes, or steel tubes, that can transport a heat exchange medium.

[0070] In some embodiments, the flow channel 40 is located at least partially within the enclosed space in order to regulate the temperature of the battery cells 10 located within the enclosed space. The inlet pipe 50 and the outlet pipe 60 are positioned outside the enclosed space to be connected to the external lines.

[0071] The wording “the inlet pipe 50 and the outlet pipe 60 are both located on the side of the first housing part 20 facing the second housing part 30” can be understood to mean that the direction of connecting the inlet pipe 50 and the outlet pipe 60 to the external lines and disconnecting them corresponds to the direction from the first housing part 20 to the second housing part 30.

[0072] The phrase "side of the first housing part 20 facing the second housing part 30" can be understood as a direction that does not run parallel to the reference surface existing in the contact area between the first housing part 20 and the second housing part 30. See for a better understanding. Fig. 3, in Fig. 3 x can be considered the longitudinal direction of the first housing part 20 and y the transverse direction of the first housing part 20, wherein the inlet pipe 50 and the outlet pipe 60 in a battery 100 of the prior art are arranged in the x and y directions respectively, i.e., are placed horizontally, or in other words, that the inlet pipe 50 and the outlet pipe 60 are arranged parallel to the horizontal plane, and in some embodiments of the present application, however, the inlet pipe 50 and the outlet pipe 60 are not arranged in the x or y direction, which means that the inlet pipe 50 and the outlet pipe 60 are not arranged parallel to the horizontal plane.

[0073] In the solution described above, the inlet pipe 50 and the outlet pipe 60 of the battery 100 are located on the side of the first housing part 20 facing the second housing part 30 and are positioned outside the enclosed space. The vertical space available in the second housing part 30 itself allows for connection to and disconnection from external lines, thus facilitating the connection and disconnection of the battery 100. Furthermore, no additional space needs to be provided in the battery 100 for connecting and disconnecting the inlet pipe 50 and the outlet pipe 60 to external lines, consequently allowing for the accommodation of more battery cells 10 and thus increasing the volumetric energy density of the battery 100.

[0074] According to some embodiments of the present application, see Fig. 4 and Fig. 5, Fig. Figure 4 shows a schematic representation of the first housing part 20, the inlet pipe 50 and the outlet pipe 60 of some embodiments of the present application, Fig. Figure 5 shows a schematic representation of part of the battery 100 of some embodiments of the present application. The first housing part 20 comprises a base 21, and the base 21 is arranged in the thickness direction z of the base 21 relative to the second housing part 30. The inlet tube 50 and the outlet tube 60 are both arranged obliquely or perpendicularly to the base 21.

[0075] The base 21 is the main component of the first housing part 20, wherein the base 21 and the second housing part 30 are arranged opposite each other and the thickness direction z of the base 21 can correspond to the height direction of the battery 100.

[0076] The inlet pipe 50 and the outlet pipe 60 are both arranged at an angle or perpendicular to the base 21, which means that the axes of the inlet pipe 50 and the outlet pipe 60 are arranged at an angle or perpendicular to the base 21, so that when the external lines are connected or disconnected, at least part of the insertion and withdrawal force is directed along the vertical direction of the battery 100.

[0077] In the aforementioned solution, the direction for connecting the inlet pipe 50 and the outlet pipe 60 to the external lines and disconnecting them is at an angle or perpendicular to the ground 21, in order to make efficient use of the vertical space of the battery 100 for connecting and disconnecting and to avoid requiring additional space, thus increasing the volumetric energy density of the battery 100.

[0078] According to some embodiments of the present application, see Fig. 3, the inlet pipe 50 and the outlet pipe 60 extend along the bottom 21 towards the second housing part 30, neither extending beyond the second housing part 30.

[0079] In the aforementioned solution, by positioning the inlet pipe 50 and the outlet pipe 60 in such a way that they do not protrude beyond the second housing part 30, the point at which the inlet pipe 50 and the outlet pipe 60 are connected to and disconnected from the external lines is located in the height range of the battery 100, thus making efficient use of the space of the battery 100 itself in the vertical direction, which facilitates connection and disconnection.

[0080] According to some embodiments of the present application, see Fig. 6, Fig. Figure 6 shows a partial sectional view of the first housing part 20 of some embodiments of the present application. Inside the base 21, a flow channel 40 is formed, and the inlet pipe 50 and the outlet pipe 60 are both arranged on the base 21.

[0081] The fact that a flow channel 40 is formed inside the base 21 means that a flow channel 40 is integrated into the base 21, so that the base 21 serves not only as a component for supporting the battery cells 10, but also as a component for receiving a heat exchange medium to regulate the temperature of the battery cells 10. The inlet pipe 50 and the outlet pipe 60 are both arranged on the base 21 and connected to the flow channel 40 inside the base 21.

[0082] In the solution described above, by arranging the flow channel 40 inside the base 21, it is achieved that the base 21 not only supports the battery cells 10, but can also regulate the temperature of the battery cells 10, thus simplifying the construction of the battery 100 and effectively increasing the volumetric energy density of the battery 100.

[0083] According to some embodiments of the present application, the connection point of inlet pipe 50 and bottom 21 as well as the connection point of outlet pipe 60 and bottom 21 are both located outside the enclosed space.

[0084] In some embodiments, see Fig. 5, both the inlet pipe 50 and the outlet pipe 60 are straight pipes, the position of the inlet pipe 50 furthest from its open end can be considered the connection point of the inlet pipe 50 with the bottom 21, and the position of the outlet pipe 60 furthest from its open end can be considered the connection point of the outlet pipe 60 with the bottom 21.

[0085] In some embodiments, the surface of the base 21 can have two through-holes, wherein the two through-holes are connected to the flow channel 40 inside the base 21, the two through-holes correspond to the inlet pipe 50 and the outlet pipe 60 respectively, the inlet pipe 50 is arranged on the base 21 and connected to the flow channel 40 via the corresponding through-hole, and the outlet pipe 60 is arranged on the base 21 and connected to the flow channel 40 via the corresponding through-hole. The connection point between the inlet pipe 50 and the base 21, as well as the connection point between the outlet pipe 60 and the base 21, can be defined as through-holes formed in the surface of the base 21. Since the through-holes are located outside the enclosed space, the inlet pipe 50 and the outlet pipe 60 on the base 21 can be arranged outside the enclosed space.

[0086] In the solution described above, the connection point of inlet pipe 50 and base 21, as well as the connection point of outlet pipe 60 and base 21, are arranged outside the enclosed space, thus avoiding the need to provide openings in the first housing part 20 or second housing part 30 to lead the inlet pipe 50 and the outlet pipe 60 outside the enclosed space, thereby eliminating the step of sealing the openings and increasing the energy density of the battery 100.

[0087] In some other embodiments, the connection point of inlet pipe 50 and base 21 as well as the connection point of outlet pipe 60 and base 21 can both be located inside the enclosed space, wherein a part of the inlet pipe 50 and the outlet pipe 60 lies inside the enclosed space and the other part passes through the first housing part 20 or the second housing part 30, so that the connection with the external lines takes place outside the enclosed space.

[0088] According to some embodiments of the present application, the base 21 comprises, as in Fig. Figure 6 shows a first base plate 210 and a second base plate 211 arranged one above the other, the second base plate 211 being arranged on the side of the first base plate 210 facing away from the second housing part 30, and the flow channel 40 being formed between the second base plate 211 and the first base plate 210.

[0089] In the thickness direction z of the base 21, the first base plate 210 and the second base plate 211 are arranged one above the other, and the flow channel 40 for receiving the heat exchange medium is formed between the two. The first base plate 210 is located closer to the second housing part 30 compared to the second base plate 211, and the inlet pipe 50 and the outlet pipe 60 can be arranged on the surface of the first base plate 210 facing away from the second base plate 211 and connected to the flow channel 40. The first base plate 210 and the second base plate 211 can be joined together by welding or bonding.

[0090] In the solution described above, the first base plate 210 and the second base plate 211 are arranged one above the other to form the flow channel 40, which simplifies the construction of the base 21 and facilitates its manufacture.

[0091] In other embodiments, the flow channel 40 can be formed inside the base 21 by molding it in one piece.

[0092] According to some embodiments of the present application, as in Fig. 6 can be seen on the surface of the second base plate 211 facing the first base plate 210, a groove 2110 is formed, and the surface of the first base plate 210 facing the first base plate 210 together with the groove 2110 forms the flow channel 40.

[0093] The surface of the second base plate 211 facing the first base plate 210 can be the inner wall of the base 21, wherein the inner wall is provided with a groove 2110 so that the flow channel 40 can be formed for the flow of the heat exchange medium, thus enabling temperature control of the battery cells 10. In some embodiments, the surface of the first base plate 210 facing the second base plate 211 can be a flat surface. In some other embodiments, the surface of the first base plate 210 facing the second base plate 211 can also be provided with a groove 2110 and be arranged opposite the groove 2110 of the second base plate 211. To ensure that the first base plate 210 can stably support the battery cells 10, the surface of the first base plate 210 facing away from the second base plate 211 can be a flat surface.

[0094] In the solution described above, a groove 2110 is formed on the surface of the second base plate 211 to form the flow channel 40 together with the first base plate 210, thereby enabling the heat exchange medium to effectively regulate the temperature of the battery cells 10, which increases the reliability of the battery 100.

[0095] According to some embodiments of the present application, the first housing part 20 comprises, as in Fig. 5 and Fig. 6 can be seen, furthermore a first side wall 22, the first side wall 22 is arranged at the edge of the base 21 and the first side wall 22 is connected to the second housing part 30.

[0096] The first side wall 22 is a component projecting beyond the base 21 in the thickness direction z of the base 21 and is connected to the edge of the base 21. The end of the base 21 furthest from the first side wall 22 can be connected to the second housing part 30.

[0097] In the solution described above, a first side wall 22 is arranged on the bottom 21, which improves the strength of the structure of the first housing part 20 and ensures that the battery 100 has a relatively large enclosed space, so that consequently more battery cells 10 can be accommodated and the volumetric energy density of the battery 100 increases.

[0098] According to some embodiments of the present application, the first side wall 22, as shown in Fig. 4 and Fig. Figure 5 shows an open structure along the perimeter of the base 21. The phrase "the first side wall 22 ... has an open structure" means that a first side wall 22 is not arranged at part of the edge of the base 21, so that the first side wall 22 is not closed at both ends, at the beginning and at the end, or in other words, so that the first side wall 22 is only arranged at part of the edge of the base 21.

[0099] In the solution described above, the first side wall 22 is configured as an open structure, which on the one hand ensures that the first housing part 20 has a certain strength appropriate to the requirements; on the other hand, if the flow channel 40 is formed inside the base 21, the inlet pipe 50 and the outlet pipe 60 can be arranged on the base 21 where there is no first side wall 22, in order to prevent the flow resistance from increasing due to the arrangement of the first side wall 22 (if the inlet pipe 50 and the outlet pipe 60 were arranged on the first side wall 22, the flow resistance would be too great due to the height difference between the first side wall 22 and the base 21), so that the heat exchange medium cannot flow through the inlet pipe 50 and the outlet pipe 60;On the other hand, since no first side wall 22 is arranged on part of the edge of the base 21, there is no draft angle at the corresponding location of the first housing part 20, so that the battery cells 10 are not impaired and the utilization of the enclosed space is improved, giving the battery 100 a relatively high volumetric energy density.

[0100] According to some embodiments of the present application, see Fig. 7, Fig. Figure 7 shows a top view of the first housing part 20 of some embodiments of the present application. The base 21 comprises a first region 212 and a second region 213. The first region 212 and the second region 213 are arranged side by side in a first direction x. The first side wall 22 is arranged at the edge of the first region 212, the first side wall 22 is not arranged at the edge of the second region 213, and the first direction x is perpendicular to the thickness direction z of the base 21. The inlet pipe 50 and the outlet pipe 60 are both located in the second region 213.

[0101] See Fig. 7, wherein the first housing part 20 can have a rectangular shape, the first direction x being the longitudinal direction of the first housing part 20, and the first area 212 and the second area 213 being two areas arranged side by side in the longitudinal direction of the first housing part 20. The first area 212 and the second area 213 can both be rectangular, with the edge of the first area 212 and the edge of the second area 213 together forming the edge of the base 21. The first side wall 22 is arranged along the entire edge of the first area 212, and no side wall 22 is arranged along the edge of the second area 213.

[0102] The inlet pipe 50 and the outlet pipe 60 are both located in the second area 213, which means that there is no first side wall 22 on the floor 21 where the inlet pipe 50 and the outlet pipe 60 are located.

[0103] In the solution described above, the vertical position of the first housing part 20 is determined by a first side wall 22, which is why the inlet pipe 50 and the outlet pipe 60 are arranged in the second area 213 which does not have a first side wall 22, so that the vertical space of the first housing part 20 and the second housing part 30 can be used for connecting to and disconnecting from the external lines and consequently the height of the battery 100 itself can be used effectively, which facilitates connecting and disconnecting.

[0104] According to some embodiments of the present application, the first area comprises 212, as in Fig. Figure 7 shows a first edge 2120 and two second edges 2121, wherein the two second edges 2121 are arranged opposite each other in the second direction y, the first edge 2120 is connected to the two second edges 2121, the first side wall 22 is arranged at the first edge 2120 and the two second edges 2121 and the second direction y is perpendicular to the thickness direction z of the base 21.

[0105] The second direction y runs perpendicular to the thickness direction z of the base 21, and in some embodiments, the second direction y may be the width direction of the first housing part 20. In the second direction y, the two second edges 2121 are arranged opposite each other, and the first edge 2120 lies between the two second edges 2121 and is connected to the two first edges 2120 in a U-shape. In some embodiments, the ends of the second edges 2121 furthest from the first edge 2120 are connected to the edge of the second region 213. The wording “the first side wall 22 is arranged at the first edge 2120 and the two second edges 2121” means that the first side wall 22 is arranged at the three edges of the first area 212 (the first edge 2120 and the two second edges 2121) to form a U-shaped open structure.

[0106] In the solution described above, the first side wall 22 is arranged at the first edge 2120 and at the two second edges 2121, which improves the strength of the structure of the first housing part 20 and increases the structural strength of the battery 100, so that the battery cells 10 have a relatively high reliability.

[0107] In some embodiments, the inlet pipe 50 and the outlet pipe 60 can be arranged at the corners of the second area 213 to reduce the impairment of the space of the enclosed area corresponding to the second area 213.

[0108] According to some embodiments of the present application, the two second edges 2121 both extend along the first direction x and the first direction x, the second direction y and the thickness direction y of the base 21 are each perpendicular to each other.

[0109] In the solution described above, the first direction x, the second direction y and the thickness direction z of the base 21 are each perpendicular to each other and the first housing part 20 has a rectangular shape, whereby a rectangular housing part can be manufactured efficiently compared to a non-rectangular housing part, which increases the production efficiency of the battery 100 and allows for the inclusion of more battery cells 10.

[0110] According to some embodiments of the present application, the first housing part 20 comprises, as in Fig. 6 can be seen, furthermore a first flange 23, wherein the first flange 23 extends outwards from the end of the first side wall 22 furthest from the bottom 21 and the first side wall 22 is connected to the second housing part 30 via the first flange 23.

[0111] In some embodiments, the first flange 23 can be formed on the first base plate 210 by rolling or bending.

[0112] The first flange 23 designates a component that extends outwards from the end of the first side wall 22 furthest from the bottom 21 and has a horizontal or nearly horizontal shape in order to provide a relatively large contact area for the second housing part 30.

[0113] In the solution described above, by providing a first flange 23, the first side wall 22 and the second housing part 30 can be effectively connected to each other, so that there is a stable and tight connection between the first side wall 22 and the second housing part 30, which increases the reliability of the battery cells 10 in the enclosed space.

[0114] According to some embodiments of the present application, see Fig. 3 and Fig. 8, Fig. Figure 8 shows an enlarged view of point A. Fig. 3. The second housing part 30 comprises a top wall 31, a second side wall 32 and a second flange 33; the second side wall 32 is arranged at the edge of the top wall 31 and the second flange 33 extends outwards from the end of the second side wall 32 furthest from the top wall 31; the second flange 33 is connected to the edge of the bottom 21 without the first side wall 22 and to the first flange 23.

[0115] The upper wall 31 can be the main component of the second housing part 30, and it can be arranged opposite the bottom 21, with the direction from the upper wall 31 to the bottom 21 being the vertical direction of the battery 100.

[0116] The second side wall 32 can be arranged around the edge of the upper wall 31 and form a closed structure, such that the second side wall 32 is arranged all the way around the edge of the upper wall 31. Since the second side wall 32 is arranged all the way around the edge of the upper wall 31, a chamber is created in the interior of the second housing part 30, so that when the second housing part 30 and the first housing part 20 are connected to each other, this chamber forms part of the enclosed space.

[0117] The second flange 33 can be a component that extends outwards from the end of the second side wall 32 furthest from the top wall 31 and has a horizontal or nearly horizontal shape in order to provide a relatively large contact area for the first housing part 20.

[0118] In the solution described above, the second housing part 30 is connected to the edge of the base 21 (without a first side wall 22) and to the first flange 23 via the second flange 33, thereby improving the tightness of the first housing part 20 and the second housing part 30. Furthermore, the second side wall 32 is arranged around the edge of the top wall 31 to form a chamber and consequently increase the volume of the enclosed space, allowing more battery cells 10 to be accommodated, thus giving the battery 100 a relatively high volumetric energy density.

[0119] According to some embodiments of the present application, the second housing part 30 comprises an upper wall 31, a second side wall 32, and a second flange 33. The second side wall 32 is arranged at a portion of the edge of the upper wall 31, and the second flange 33 extends outwards from the end of the second side wall 32 furthest from the upper wall 31. The second flange 33 is connected to the edge of the bottom 21, excluding the first side wall 22, and the edge of the upper wall 31, excluding the second side wall 32, is connected to the first flange 23.

[0120] The second side wall 32 can be arranged around part of the edge of the top wall 31 and form an open structure, and the second side wall 32 corresponds to the part of the bottom 21 excluding the first side wall 22. The second flange 33 can be a component that extends outwards from the end of the second side wall 32 furthest from the top wall 31 and has a horizontal or nearly horizontal shape in order to provide a relatively large contact area with the first housing part 20.

[0121] In the solution described above, the main component of the second housing part 30 is plate-shaped and has a second side wall 32 attached to a portion of its edge at the location corresponding to the first housing part 20 without a first side wall 22. This results in a simple structure for the second housing part 30, which offers the advantage of low material costs. Furthermore, the second housing part 30 is connected to the edge of the base 21 (without a first side wall 22) via the second flange 33 and to the first flange 23 via the edge of the plate-shaped top wall 31. This improves the sealing of the first housing part 20 and the second housing part 30, consequently increasing the reliability of the battery 100.

[0122] According to some embodiments of the present application, see Fig. 8, in Fig. Figure 8 shows only the first recess 330, whereby the structure of the second recess 331 may correspond to the structure of the first recess 330 and for understanding the second recess 331 Fig. 8 can be used. The second housing part 30 comprises an upper wall 31, a second side wall 32, and a second flange 33. The second side wall 32 is arranged at the edge of the upper wall 31, and the second flange 33 extends outwards from the end of the second side wall 32 furthest from the upper wall 31. The second flange 33 has a first recess 330 and a second recess 331, and the inlet pipe 50 and the outlet pipe 60 pass through the first recess 330 and the second recess 331, respectively.

[0123] The first recess 330 is a component located on the second flange 33, designed to provide space for the inlet pipe 50. When the first housing part 20 and the second housing part 30 are joined, the inlet pipe 50 can pass through the first recess 330 without compromising the seal between the second flange 33 and the first housing part 20. The second recess 331 is a component located on the second flange 33, designed to provide space for the outlet pipe 60. When the first housing part 20 and the second housing part 30 are joined, the outlet pipe 60 can pass through the second recess 331 without compromising the seal between the second flange 33 and the first housing part 20.

[0124] In some embodiments, a seal 80 is arranged between the first flange 23 and the second flange 33. Since the second flange 33 has a first recess 330 and a second recess 331, the seal 80 can consequently have a corresponding recess. The seal 80 is annular and arranged around the edge of the enclosed space to improve the tightness of the first flange 23 and the second housing part 30, as well as of the second flange 33 and the first housing part 20. The seal 80 can be a rubber ring.

[0125] According to some embodiments of the present application, as in Fig. 8 shown, in the first recess 330 and the second recess 331, recesses provided in the edge of the second flange 33.

[0126] The recesses can be inwardly directed indentations in the edge of the second flange 33 to form components for passing through the inlet pipe 50 or the outlet pipe 60.

[0127] In the solution described above, the first recess 330 and the second recess 331 are recesses formed in the edge of the second flange 33, which can be formed in a simple and practical way.

[0128] In some embodiments, the edge of the seal 80 is also provided with corresponding recesses to create space for the inlet pipe 50 and the outlet pipe 60.

[0129] In some other embodiments, the first recess 330 and the second recess 331 may be through holes provided in the edge of the second flange 33.

[0130] According to some further embodiments of the present application, see Fig. 9, Fig. Figure 9 shows a 3D exploded view of the battery 100 of some further embodiments of the present application. The battery 100 further comprises a thermal management component 70, wherein the flow channel 40 is arranged on the thermal management component 70, the thermal management component 70 is located in an enclosed space, and the inlet pipe 50 and the outlet pipe 60 are both attached to the thermal management component 70.

[0131] The thermal management component 70 can be a component independent of the base 21; the thermal management component 70 is a separate component that serves to regulate the temperature of the battery cells 10. In some embodiments, the thermal management component 70 can be, as in Fig. As can be seen in Figure 9, the heat exchanger is plate-shaped and has an internal flow channel 40 to accommodate the heat exchange medium and allow its flow. The inlet pipe 50 and the outlet pipe 60 are arranged on the surface of the heat exchange medium and are located on the side of the first housing part 20 facing the second housing part 30. The heat management component 70 can be arranged on the base 21, with the battery cells 10 arranged on the surface of the heat management component 70 furthest from the base 21.

[0132] In some embodiments, part of the thermal management component 70 is located within the enclosed space, while the other part protrudes through the first housing part 20 or the second housing part 30 to position the inlet pipe 50 and the outlet pipe 60 outside the enclosed space. In some other embodiments, the thermal management component 70 is located within the enclosed space, and the inlet pipe 50 and the outlet pipe 60 may protrude through the second housing part 30.

[0133] In the solution described above, by providing an independent thermal management component 70 to regulate the temperature of the battery cells 10, the battery 100 achieves a relatively high reliability.

[0134] According to some embodiments of the present application, the present application further provides an energy storage device comprising a battery 100 as described above. In some embodiments, the energy storage device may be an energy storage cabinet, wherein the energy storage cabinet comprises a cabinet body and several batteries 100, and the several batteries 100 are arranged in the cabinet body and can supply power to electrical devices together.

[0135] According to some embodiments of the present application, the present application further provides an electrical device comprising a battery 100 as described above, wherein the battery 100 serves to provide electrical energy.

[0136] According to some embodiments of the present application, the present application further provides a battery 100, see Fig. 3 to Fig.8. The battery 100 comprises battery cells 10, a first housing part 20, a second housing part 30, a seal 80, an inlet tube 50, and an outlet tube 60. The first housing part 20 is the lower housing part of the battery 100, and the second housing part 30 is the upper housing part of the battery 100. The first housing part 20 comprises a base 21, a first side wall 22, and a first flange 23. The base 21 is rectangular, and along the longitudinal direction of the first housing part 20, the base 21 comprises, side by side, a first region 212 and a second region 213, wherein the first region 212 and the second region 213 are both rectangular, the first side wall 22 is located at the edge of the first region 212, no first side wall 22 is located at the edge of the second region 213, and the first flange 23 extends from the extends outwards from the end of the first side wall 22 located away from the ground 21.The base 21 of the first housing part 20 comprises a first base plate 210 and a second base plate 211, which are arranged one above the other, with the second base plate 211 being located on the side of the first base plate 210 facing away from the second housing part 30, and the first side wall 22 being formed at the edge of the first base plate 210. A groove 2110 is formed on the surface of the second base plate 211 facing the first base plate 210, and the surface of the first base plate 210 facing the first base plate 210, together with the groove 2110, forms the flow channel 40. The inlet pipe 50 and the outlet pipe 60 are arranged on the first base plate 210 and connected to the flow channel 40.The inlet pipe 50 and the outlet pipe 60 are each located in a corner of the second area 213 and are arranged perpendicular to the first base plate 210 in the vertical direction of the battery 100, with the open ends of the inlet pipe 50 and the outlet pipe 60 oriented towards the second housing part 30. The inlet pipe 50 and the outlet pipe 60 can be connected to external lines, whereby operators or robot arms can apply a force perpendicular to the first base plate 210 to insert or remove the external lines. The external lines can convey a heat exchange medium into the flow channel 40 via the inlet pipe 50 and discharge the heat exchange medium from the flow channel 40 via the outlet pipe 60. The base 21 supports the battery cells 10, and the temperature of the battery 100 can be regulated by means of the heat exchange medium.The connection point of inlet pipe 50 and floor 21, as well as the connection point of outlet pipe 60 and floor 21, are both located outside the enclosed space and lie in corners of the first area 212.

[0137] The second housing part 30 comprises a top wall 31, a second side wall 32, and a second flange 33. The second side wall 32 is arranged around the edge of the top wall 31, and the second flange 33 extends outwards from the end of the second side wall 32 furthest from the top wall 31. The second flange 33 can be connected to the edge of the first region 212 of the base 21 and the first flange 23 by welding, bonding, or bolting. The gasket 80 is located at the junction of the first housing part 20 and the second housing part 30, thereby increasing the tightness of the first housing part 20 and the second housing part 30.The first housing part 20 and the second housing part 30 are connected to each other and together form the enclosed space. The battery cells 10 are arranged in the enclosed space and lie on the first area 212, while the electronic components of the battery 100, such as the BMS (Battery Management System), can be arranged on the second area 213. The second flange 33 has recesses to provide space for the inlet pipe 50 and the outlet pipe 60.

[0138] The preceding descriptions are merely preferred embodiments of the present application and are in no way intended to limit the present application. Skilled persons in this field may make various modifications and amendments to the present application. Any modifications, equivalent substitutions, improvements, etc., made within the nature and principle of the present application are all within the scope of protection of the present application.

Claims

[1] Battery, the battery comprising battery cells, a first casing part, a second casing part and a flow channel; the first housing part and the second housing part are connected to each other to form a closed space for housing the battery cells; and the flow channel serves to hold a heat exchange medium in order to regulate the temperature of the battery cells; wherein the battery further comprises an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe both being connected to the flow channel, and the inlet pipe and the outlet pipe both being located on the side of the first housing part facing the second housing part and being positioned outside the enclosed space. [2] Battery according to claim 1, wherein the first housing part includes a base and the base is arranged in the thickness direction opposite the second housing part; and the inlet pipe and the outlet pipe are both arranged at an angle or perpendicular to the ground. [3] Battery according to claim 2, wherein the inlet tube and the outlet tube along the bottom in the direction of the second housing part both do not extend beyond the second housing part. [4] Battery according to claim 2 or 3, wherein the flow channel is formed inside the base and the inlet pipe and the outlet pipe are both arranged on the base. [5] Battery according to claim 4, wherein the connection point of inlet tube and base and the connection point of outlet tube and base are both located outside the enclosed space. [6] Battery according to claim 5, wherein the base comprises a first base plate and a second base plate arranged one above the other, the second base plate being arranged on the side of the first base plate facing away from the second housing part, and the flow channel being formed between the second base plate and the first base plate. [7] Battery according to claim 6, wherein a groove is formed on the surface of the second base plate facing the first base plate and the surface of the first base plate facing the first base plate together with the groove forms the flow channel. [8] Battery according to any one of claims 2 to 7, wherein the first housing part further comprises a first side wall, the first side wall is arranged at the edge of the bottom and the first side wall is connected to the second housing part. [9] Battery according to claim 8, wherein the first side wall has an open construction along the circumference of the base. [10] Battery according to claim 8 or 9, wherein the soil comprises a first area and a second area, the first area and the second area are arranged side by side in a first direction, the first side wall is arranged at the edge of the first area, the first side wall is not arranged at the edge of the second area, the first direction is perpendicular to the thickness direction of the soil; the inlet pipe and the outlet pipe both lie in the second area. [11] Battery according to claim 10, wherein the first area comprises a first rim and two second rims, the two second rims being arranged opposite each other in a second direction, the first rim being connected to the two second rims, the first side wall being arranged at the first rim and the two second rims, and the second direction being perpendicular to the thickness direction of the base. [12] Battery according to claim 11, wherein the two second edges both extend along the first direction and the first direction, the second direction and the thickness direction of the base are each perpendicular to each other. [13] Battery according to one of claims 10 to 12, wherein the first housing part further comprises a first flange, the first flange extends outwards from the end of the first side wall furthest from the ground and the first side wall is connected to the second housing part via the first flange. [14] Battery according to claim 13, wherein the second housing part comprises a top wall, a second side wall and a second flange, the second side wall being arranged at the edge of the top wall and the second flange extending outwards from the end of the second side wall furthest from the top wall; the second flange is connected to the edge of the base without the first side wall, as well as to the first flange. [15] Battery according to claim 13, wherein the second housing part comprises a top wall, a second side wall and a second flange, the second side wall being arranged at part of the edge of the top wall and the second flange extending outwards from the end of the second side wall furthest from the top wall; the second flange is connected to the edge of the bottom without the first side wall, and the edge of the top wall is connected to the first flange without the second side wall. [16] Battery according to any one of claims 13 to 15, wherein the second housing part comprises a top wall, a second side wall and a second flange, the second side wall being arranged at the edge of the top wall and the second flange extending outwards from the end of the second side wall furthest from the top wall; the second flange is provided with a first recess and a second recess, and the inlet pipe and the outlet pipe pass through the first recess and through the second recess. [17] Battery according to claim 16, wherein the first recess and the second recess are recesses provided in the edge of the second flange. [18] Battery according to any one of claims 1 to 17, wherein the battery further comprises a thermal management component, wherein the flow channel is arranged on the thermal management component, part of the thermal management component is located inside the enclosed space and the inlet pipe and the outlet pipe are both connected to the thermal management component. [19] Energy storage device, wherein the energy storage device comprises a battery according to any one of claims 1 to 18. [20] Electrical device, wherein the device comprises a battery according to any one of claims 1 to 18 and the battery serves to provide electrical energy.

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