Batteries and power consumption devices

Abstract

This application provides a battery and a power consumption device that can improve the structural performance of a mounting structure within the battery. The battery includes a battery cell and a housing for housing the battery cell, the housing including a first wall and a second wall which are installed opposite to each other, the first wall and the second wall intersect the first direction, a first cross member is installed between the first wall and the second wall, the first cross member includes a third wall which intersects the first direction and is close to the first wall, a gap is installed between the third wall and the first wall, and the first cross member has a first through-hole which extends along the first direction; and a mounting structure which passes at least partially through the first through-hole and is configured to abut the third wall within the gap.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of an invention patent application filed with the China Patent Office on June 29, 2023, with an application number of 202310782442.5 and an invention title of "Battery and Power Consumption Device", and all of its content is incorporated herein by reference.

[0002] (Technical Field) This application relates to the field of batteries, particularly to batteries and power consumption devices.

Background Art

[0003] Energy conservation and reduction of pollutant emissions are the key to the sustainable development of the automotive industry. Electric vehicles have become an important part of the sustainable development of the automotive industry due to their energy - saving and environmental protection advantages. For electric vehicles, battery technology is an important factor related to their development.

[0004] The mounting structure in a battery is used to mount the battery to an external mechanism of the battery, and how to improve the structural performance of the mounting structure is an urgent problem to be solved.

Summary of the Invention

Means for Solving the Problems

[0005] According to a first embodiment, a battery is provided, the battery comprising: a battery cell; a housing for housing the battery cell, comprising a first wall and a second wall, which are installed opposite each other, the first wall and the second wall intersect the first direction, a first cross member is installed between the first wall and the second wall, the first cross member includes a third wall which intersects the first direction and is close to the first wall, a gap is installed between the third wall and the first wall, and the first cross member has a first through-hole extending along the first direction; and a mounting structure configured to at least partially pass through the first through-hole and contact the third wall within the gap.

[0006] The battery is mounted to its external mechanism by a mounting structure within the battery, and a first cross member is typically installed inside the battery housing. In the embodiment of this application, the first cross member is provided with a first through-hole for accommodating the mounting structure, and a gap is provided between the third wall of the first cross member and the first wall of the housing. The mounting structure passes through the first through-hole on the first cross member and abuts against the first cross member in the gap between the first cross member and the housing, thereby making full use of the first through-hole on the first cross member and this gap between the first cross member and the housing to achieve fitting between the mounting structure and the housing and the first cross member, and is configured to improve the structural performance of the mounting structure.

[0007] The angle between the first wall and the first direction is within one of the following ranges: 90°±15°, 90°±10°, or 90°±5°.

[0008] The angle between the second wall and the first direction is within one of the following ranges: 90°±15°, 90°±10°, or 90°±5°.

[0009] The angle between the third wall and the first direction is within one of the following ranges: 90°±15°, 90°±10°, or 90°±5°.

[0010] In some possible implementations, the mounting structure includes a first sleeve, a second sleeve, and an adapter sleeve connected between the second sleeve and the first sleeve, the end of which extends along a second direction at a predetermined angle with respect to the first direction to form the first extension, where the adapter sleeve is configured to pass through the first through-hole and to abut against the third wall in the gap by the first extension. This predetermined angle is, for example, within one of the ranges of 90°±15°, 90°±10°, or 90°±5°.

[0011] In this embodiment, the mounting structure includes a first sleeve, a second sleeve, and an adapter sleeve for connecting the second sleeve and the first sleeve, the end of which the adapter sleeve extends along a second direction to form the first extension, and which the adapter sleeve passes through a first through-hole in the first cross member and is configured to abut against a third wall of the first cross member in this gap by the first extension, and because the thickness of the first extension is relatively small, the space utilization rate inside the battery can be improved by making this gap relatively small.

[0012] In some possible implementations, a second through-hole is provided on the first wall at a position corresponding to the first through-hole, the first sleeve includes a second extension formed extending along the second direction, the first sleeve is connected to the adapter sleeve through the second through-hole and is configured to abut the first wall by the second extension on the side of the first wall away from the battery cell. In this way, a connection is made between the mounting structure and the first wall of the housing.

[0013] In some possible implementations, a first sealing material is installed between the first extension and the first wall. By providing the first sealing material, it is possible to some extent to prevent external liquid from entering the battery from the contact point between the first extension and the first wall.

[0014] In some possible implementations, the inner wall of the adapter sleeve is fitted to the outer walls of the first sleeve and the second sleeve, thereby enabling the adapter sleeve to connect the second sleeve and the first sleeve.

[0015] In some possible implementations, a second sealing material is installed between the inner wall of the adapter sleeve and the outer wall of the second sleeve. By providing the second sealing material, it is possible to some extent to prevent external liquid from entering the battery through the connection point between the adapter sleeve and the second sleeve.

[0016] In some possible implementations, the battery further includes a thermal management member for the battery cell, the thermal management member being positioned between the second wall and the battery cell, the thermal management member having a third through-hole at a position corresponding to the first through-hole, the second sleeve including a third extension formed extending along the second direction, the second sleeve being connected to the adapter sleeve through the third through-hole and configured to abut the thermal management member by the third extension on the side of the thermal management member away from the battery cell. In this way, the mounting structure can provide mounting force to the battery by the thermal management member.

[0017] In some possible implementations, a third sealing material is installed between the third extension and the thermal management member. By providing the third sealing material, it is possible to some extent to prevent external liquid from entering the battery through the connection point between the first sleeve and the thermal management member.

[0018] In some possible implementations, the first extension is provided with a mounting portion for fitting with a mounting fixture to attach the adapter sleeve. Providing a mounting portion at the end of the adapter sleeve facilitates the attachment of the adapter sleeve using a suitable mounting fixture.

[0019] In some possible implementations, the mounting portion is a recess installed in the first extension, the opening of the recess facing the first wall along the first direction, and the recess is used to engage with the mounting fixture. Implementation is easy and operation is simple by engaging the mounting fixture in this recess and applying a torsional force to the adapter sleeve from the end of the adapter sleeve to fit the adapter sleeve and the first sleeve together. For example, the recess is a hexagonal recess, and the mounting fixture is a hex wrench with a hole.

[0020] In some possible implementations, the first wall includes a first region and a second region, the first region being used to connect to the mounting structure, the first region and the second region having different heights along the first direction, forming a housing space along the first direction, the housing space being used to house the external mechanism of the battery. In other words, the upper wall of the battery housing may be provided with a recess for housing the external mechanism of the battery, such as a cross member of the vehicle body, which is advantageous for improving the utilization rate of the interior space.

[0021] In some possible implementations, the first cross member includes at least one empty cavity provided along the first direction to reduce the weight of the first cross member.

[0022] According to a second embodiment, a power consumption device is provided, the power consumption device includes a battery according to the first embodiment or one of the possible implementations of the first embodiment, the battery being used to provide electrical energy to the power consumption device.

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the following briefly introduces the drawings that need to be used in the embodiments of this application. It is self-evident that the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative efforts.

Brief Description of the Drawings

[0024] [Figure 1] It is a schematic diagram of the structure of the vehicle in the embodiment of this application. [Figure 2] It is a schematic diagram of the structure of the battery in the embodiment of this application. [Figure 3] It is a partial exploded view of the battery in the embodiment of this application. [Figure 4] It is a partial cross-sectional view of the battery in the embodiment of this application. [Figure 5] It is a schematic diagram of the structure of the adapter sleeve in the embodiment of this application. [Figure 6] It is a partial exploded view of the battery in another embodiment of this application.

Modes for Carrying Out the Invention

[0025] In the drawings, the drawings are not drawn to actual scale.

[0026] Hereinafter, the embodiments of this application will be described in more detail by combining the drawings and the embodiments. Hereinafter, the detailed description of the embodiments and the drawings are for illustrative purposes to explain the principle of this application, but not for limiting the scope of this application. That is, this application is not limited to the described embodiments.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following clearly describes the technical solutions in the embodiments of this application by combining the drawings in the embodiments of this application. Obviously, the described embodiments are some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of this application.

[0028] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as that commonly understood by those skilled in the art relating to this application; the terms used in the specification of this application are solely for the purpose of describing specific embodiments and are not intended to limit this application; the terms “includes” and “have” and any variations thereof in the description of the specification, claims and drawings of this application are intended to intentionally cover the non-exclusive “includes”; the terms “first,” “second,” etc., in the specification, claims or drawings of this application are not intended to describe a particular order or subordination but to distinguish different subjects.

[0029] The directional terms appearing in the following description all refer to the directions shown in the figures and do not limit the specific structure of this application. It should be further explained that, unless otherwise explicitly stated or limited, the terms “attachment,” “connection,” and “connection” should be understood in a broad sense. These may include, for example, a fixed connection, a detachable connection, a one-piece connection, a direct connection, or an indirect connection via an intermediate medium. Those skilled in the art will be able to understand the specific meaning of these terms in this application depending on the specific circumstances.

[0030] The “Examples” as used in this application mean that certain features, structures, or characteristics described in conjunction with the Examples may be included in at least one Example of this application. The appearance of this phrase at each location in the specification does not necessarily refer to the same Example, nor does it mean that each Example is mutually exclusive or alternative to the others. Those skilled in the art will understand, both explicitly and implicitly, that the Examples described in this application may be combined with other Examples.

[0031] In this application, the terms "and / or" merely describe the relationship between related objects, indicating that three relationships are possible. For example, A and / or B may represent three cases: A alone, a combination of A and B, and B alone. In this application, the character " / " generally indicates that the preceding and succeeding related objects are in an "or" relationship.

[0032] In this application, "multiple" refers to two or more items, "multiple sets" refers to two or more sets, and "multiple sheets" refers to two or more sheets.

[0033] In the embodiments of this application, the battery cell may be a secondary battery, which is a battery cell that can continue to be used by activating the active material by charging after the battery cell has been discharged. The battery cell may be, for example, a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of this application are not limited thereto.

[0034] A battery cell typically includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator member. During the charging and discharging process of the battery cell, active ions, such as lithium ions, are intercepted and released as they move back and forth between the positive and negative electrodes. The separator member is placed between the positive and negative electrodes and can prevent short circuits between them while allowing active ions to pass through.

[0035] In some embodiments, the positive electrode may be a positive electrode plate, which includes a positive electrode current collector and a positive electrode active material placed on at least one surface of the positive electrode current collector.

[0036] The positive electrode current collector has two opposing surfaces in the direction of its own thickness, and the positive electrode active material is placed on one or both of the two opposing surfaces of the positive electrode current collector.

[0037] For example, the positive electrode current collector may be a metal foil sheet or a composite current collector. For example, as the metal foil sheet, aluminum or stainless steel surface-treated with silver, stainless steel, copper, aluminum, nickel, carbon electrodes, carbon, nickel, or titanium may be used. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material, such as aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver, or silver alloy, on a polymer material substrate, such as polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, or polyethylene.

[0038] Here, the positive electrode active material includes, for example, at least one of the following materials: lithium-containing phosphate, lithium transition metal oxide, and their respective modified compounds. This application is not limited to these materials, and other conventional materials that can be used as battery positive electrode active materials may also be used. These positive electrode active materials may be used individually or in combination of two or more. Here, examples of lithium-containing phosphates include, but are not limited to, at least one of lithium iron phosphate, e.g., LiFePO4 (also abbreviated as LFP), composite materials of lithium iron phosphate and carbon, lithium manganese phosphate, e.g., LiMnPO4, composite materials of lithium manganese phosphate and carbon, lithium iron manganese phosphate, and composite materials of lithium iron manganese phosphate and carbon.

[0039] In some embodiments, the negative electrode may be a negative electrode plate, which includes a negative electrode current collector and a negative electrode active material placed on at least one surface of the negative electrode current collector.

[0040] The negative electrode current collector has two opposing surfaces in the thickness direction of itself, and the negative electrode active material is placed on one or both of the two opposing surfaces of the negative electrode current collector.

[0041] For example, the negative electrode current collector may be a metal foil sheet or a composite current collector. For example, as the metal foil sheet, aluminum or stainless steel surface-treated with silver, stainless steel, copper, aluminum, nickel, carbon electrodes, carbon, nickel, or titanium may be used. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material, such as copper, copper alloys, nickel, nickel alloys, titanium, titanium alloys, silver, and silver alloys, on a polymer material substrate, such as polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, or polyethylene.

[0042] Here, the negative electrode active material includes at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, and lithium titanate.

[0043] In some embodiments, the negative electrode may further be made of foamed metal. The foamed metal may be foamed nickel, foamed copper, foamed aluminum, foamed alloy, or foamed carbon. It should be noted that when the foamed metal is the negative electrode plate, the surface of the foamed metal may or may not be provided with negative electrode active material.

[0044] For example, the negative electrode current collector may be further filled with and / or deposited with a lithium source material, potassium metal, or sodium metal, the lithium source material being lithium metal and / or lithium-rich material.

[0045] The material of the positive electrode current collector may be, for example, aluminum, and the material of the negative electrode current collector may be, for example, copper.

[0046] In an electrode assembly, the separator member is placed between the positive and negative electrodes. In some embodiments, the separator member is a separator. This application is not limited to the type of separator, and any porous structure separator having good chemical and mechanical stability may be selected. For example, the main material of the separator may be selected from at least one of glass fiber, nonwoven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramics.

[0047] In some embodiments, the separator component is a solid electrolyte. The solid electrolyte is placed between the positive and negative electrodes and serves to facilitate ion transmission and isolate the positive and negative electrodes.

[0048] In some embodiments, the battery cell further includes an electrolyte that plays a role in conducting ions between the positive and negative electrodes. This application does not limit the type of electrolyte, which can be selected according to the requirements. The electrolyte may be liquid, gel-like, or solid.

[0049] In the embodiments of this application, the electrode assembly may be a wound structure, where the positive electrode plate and the negative electrode plate are wound to form a wound structure. The electrode assembly may also be a laminated structure, for example, there may be multiple positive electrode plates and multiple negative electrode plates, and the multiple positive electrode plates and multiple negative electrode plates may be laminated alternately. Alternatively, there may be multiple positive electrode plates, and the negative electrode plates may be folded and laminated to form multiple folded portions, with one positive electrode plate sandwiched between adjacent folded portions, or both the positive electrode plate and the negative electrode plate may be folded and laminated to form multiple folded portions.

[0050] Here, there may be multiple separator members, each provided between any adjacent positive electrode plate and negative electrode plate.

[0051] In some embodiments, the separator members can be installed continuously and positioned between any adjacent positive and negative electrode plates in a folded or wound manner.

[0052] The shape of the electrode assembly may be, for example, cylindrical, flattened, or polygonal prism-shaped. The electrode assembly may be provided with tabs for drawing current from the electrode assembly. Here, the tabs include a positive tab and a negative tab.

[0053] In some embodiments, the battery cell includes a housing. The housing is used to package components such as the electrode assembly and electrolyte. The housing may be a steel case, an aluminum case, a plastic case such as polypropylene, a composite metal case such as a copper-aluminum composite housing, or an aluminum laminate film. The housing includes a casing and a cover plate.

[0054] The battery cell may be, for example, a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shape. The prismatic battery cell includes a prismatic housing battery cell, a blade battery cell, or a polygonal prismatic battery, where the polygonal prismatic battery may be a hexagonal prismatic battery, and this application does not limit this.

[0055] The battery described in the embodiments of this application may be a single physical module comprising one or more battery cells to provide higher voltage and capacity. If there are multiple battery cells, the multiple battery cells may be connected in series, in parallel, or in series-parallel via busbar members.

[0056] In some embodiments, the battery may be a battery module, and if there are multiple battery cells, the multiple battery cells are fixed side by side to form a single battery module.

[0057] In some embodiments, the battery may be a battery pack, which includes a housing and battery cells, and the battery cells or battery modules are housed in the housing.

[0058] In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least part of the vehicle's floor, or a portion of the housing may be at least part of the vehicle's cross members and side members.

[0059] Because multiple battery cells in a battery are electrically connected using a specific connection method, there is a risk of short circuits occurring if electrolyte leakage or other issues occur in the battery cells. Therefore, this application provides a battery and its signal transmission assembly that can be applied to batteries with inverted battery cells and can reduce the risk of short circuits between battery cells.

[0060] The technical solutions described in the embodiments of this application are applicable to various devices that use batteries, such as mobile phones, portable devices, laptop computers, battery-powered cars, electric toys, power tools, electric vehicles, ships and aerospace vehicles, for example, aerospace vehicles include airplanes, rockets, space shuttles and spacecraft.

[0061] It should be understood that the technical solutions described in the embodiments of this application are applicable not only to the devices described above but also to all devices that use batteries. However, for the sake of brevity, the embodiments described below will be explained using an electric vehicle as an example.

[0062] For example, as shown in Figure 1, this is a schematic diagram of the structure of a vehicle 1 according to one embodiment of this application. The vehicle 1 may be a fuel oil vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or a range extender vehicle. A motor 30, a controller 20, and a battery 10 may be installed inside the vehicle 1, and the controller 20 is used to control the power supply of the motor 30 by the battery 10. For example, the battery 10 may be installed at the bottom, front, or rear of the vehicle 1. The battery 10 may be used to power the vehicle 1, for example, as an operating power source for the vehicle 1, and may be used in the circuit system of the vehicle 1, for example, for starting the vehicle 1, navigation, and the operating power consumption demand during operation. In another embodiment of this application, the battery 10 can provide driving power to the vehicle 1 not only as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, in place of or in place of fuel oil or natural gas. In addition, a battery for low-voltage power supply, for example, a 12V or 48V storage battery, may be installed inside the vehicle 1.

[0063] To meet different power consumption demands, a battery may contain multiple different types of battery cells. Depending on the type of battery cell, multiple battery cells can form groups of battery cells connected in series, parallel, or series-parallel. These groups of battery cells can then be further connected in series to form a battery, where series-parallel is a combination of series and parallel connections. Multiple different battery cells may also directly form a battery in series, parallel, or series-parallel configurations. In other words, multiple battery cells may directly constitute a battery, or they may first form groups of battery cells according to the type of battery cell, and then form a battery from these groups.

[0064] Figure 2 shows a schematic diagram of the structure of a battery 10 according to one embodiment of the present application, and the battery 10 may include a plurality of battery cells (not shown). The battery 10 may further include a housing (also called a cover) 110, the interior of which is hollow, and the plurality of battery cells are housed within the housing 110. The housing 110 may include two parts, here referred to as a first housing portion 111 and a second housing portion 112, respectively, and the first housing portion 111 and the second housing portion 112 are engaged. The shapes of the first housing portion 111 and the second housing portion 112 may be determined according to the shape of the combination of the plurality of battery cells, and at least one of the first housing portion 111 and the second housing portion 112 has one opening.

[0065] For example, as shown in Figure 2, the first housing portion 111 and the second housing portion 112 may both be hollow structures, and each may have only one open surface. The openings of the first housing portion 111 and the second housing portion 112 are positioned opposite each other, and the first housing portion 111 and the second housing portion 112 engage with each other to form a housing 110 having a sealed chamber. Multiple battery cells are connected in parallel, in series, or in series-parallel and then placed inside the housing 110 formed after the first housing portion 111 and the second housing portion 112 engage.

[0066] Alternatively, for example, one of the first housing portion 111 and the second housing portion 112 may be a hollow rectangular parallelepiped with an opening, while the other is a plate-like structure that covers the opening. Taking the example that the second housing portion 112 is hollow and has an opening on only one side, and the first housing portion 111 is plate-like, the first housing portion 111 is placed over the opening of the second housing portion 112 to form a housing 110 having a sealed chamber, which may be used to house multiple battery cells. The multiple battery cells are connected in parallel, in series, or in series-parallel and then placed inside the housing 110 formed after the first housing portion 111 and the second housing portion 112 are engaged.

[0067] Note that battery 10 may include other structures, which will not be described individually here.

[0068] As an example, Figures 3 and 4 show a battery 10 of an embodiment of the present application. Here, Figure 3 is an exploded view of the battery 10, and Figure 4 is a local cross-sectional view of the battery 10. As shown in Figures 3 and 4, the battery 10 includes a battery cell 120, a housing 110, and a mounting structure 130, where the housing 110 is used to house the battery cell 120, and the mounting structure 130 is used to mount the battery 10 to an external mechanism of the battery 10.

[0069] As shown in Figures 3 and 4, the housing 110 includes a first wall 1111 and a second wall 1112 that are installed opposite each other, and the first wall 1111 and the second wall 1112 intersect in a first direction X. Here, the angle between the first wall 1111 and the first direction X may be set according to factors such as errors in the manufacturing process, for example, the angle between the first wall 1111 and the first direction X may be within any one of the ranges of 90°±15°, 90°±10°, or 90°±5°, and of course, the first wall 1111 may be perpendicular to the first direction X. Similarly, the angle between the second wall 1112 and the first direction X may be set according to factors such as errors in the manufacturing process. For example, the angle between the second wall 1112 and the first direction X may be within one of the ranges of 90°±15°, 90°±10°, or 90°±5°. Of course, the second wall 1112 may also be perpendicular to the first direction X.

[0070] To make it easier to understand, when the battery 10 is installed in a power consumption device, the first wall 1111 may be the upper wall of the housing 110, and the second wall 1112 may be the lower wall of the housing 110. Here, the first cross member 113 is installed between the first wall 1111 and the second wall 1112.

[0071] Here, the first cross member 113 includes a third wall 1131 that intersects the first direction X and is close to the first wall 1111, with a gap 150 between the third wall 1131 and the first wall 1111. The angle between the third wall 1131 and the first direction X may be set according to factors such as errors in the manufacturing process. For example, the angle between the third wall 1131 and the first direction X may be within one of the ranges of 90°±15°, 90°±10°, or 90°±5°, and of course, the third wall 1131 may be perpendicular to the first direction X.

[0072] To make it clear, when the battery 10 is installed in a power consumption device, the third wall 1131 may be the upper wall of the first cross member 113. The first cross member 113 may further include at least one empty cavity provided, for example, along the first direction X, in order to reduce the weight of the first cross member 113.

[0073] As shown in Figures 3 and 4, the first cross member 113 is provided with a first through-hole 161 extending along a first direction X, which is used to accommodate a mounting structure 130. The mounting structure 130 is configured to pass at least partially through the first through-hole 161 and to abut against the third wall 1131 within the gap 150.

[0074] As can be seen, the first cross member 113 is provided with a first through-hole 161 for accommodating the mounting structure 130, a gap 150 is provided between the third wall 1131 of the first cross member 113 and the first wall 1111 of the housing 110, and the mounting structure 130 passes through the first through-hole 161 on the first cross member 113 and abuts against the first cross member 113 within the gap 150, thereby making full use of the first through-hole 161 on the first cross member 113 and the gap 150 between the first cross member 113 and the housing 110, thereby achieving fitting between the mounting structure 130, the housing 110 and the first cross member 113, and improving the structural performance of the mounting structure 130.

[0075] In some embodiments, the mounting structure 130 may be formed of one or more sleeves, for example, as shown in Figures 3 and 4, the mounting structure 130 includes a first sleeve 131, a second sleeve 132, and an adapter sleeve 133 connected between the second sleeve 132 and the first sleeve 131.

[0076] Here, the end of the adapter sleeve 133 extends along a second direction Y perpendicular to the first direction X to form a first extension 1331, or is allowed to form a predetermined angle between the second direction Y and the first direction X, where this predetermined angle may be set according to factors such as errors in the manufacturing process of the adapter sleeve 133, for example, this predetermined angle may be within any one of the ranges of 90°±15°, 90°±10°, or 90°±5°. The first extension 1331 of the adapter sleeve 133 may be annular, for example, surrounding the cylindrical wall of the adapter sleeve 133. In this embodiment, the adapter sleeve 133 may pass through a first through-hole 161 and be configured to abut against the third wall 1131 of the first cross member 113 in the gap 150 by the first extension 1331.

[0077] For example, as shown in Figures 3 and 4, the end of the adapter sleeve 133 extends along a second direction Y to form a first extension 1331, and the adapter sleeve 133 is configured to pass through a first through-hole 161 in the first cross member 113 and to abut against the third wall 1131 of the first cross member 113 within a gap 150 by the first extension 1331, and the size D of the gap 150 can be set based on the thickness of the first extension 1331, i.e., the size of the first extension 1331 in the first direction X, which is advantageous for improving the space utilization rate inside the battery 10.

[0078] If the thickness of the first extension 1331 is relatively small, it may affect its structural strength, and if the thickness of the first extension 1331 is relatively large, the gap 150 needs to be set relatively large, which is detrimental to improving the space utilization rate inside the battery 10. Selectively, the size of the first extension 1331 in the first direction X may be set between 2 millimeters and 10 millimeters, for example, to about 5 millimeters, and accordingly, the size D of the gap 150 may be set to be equal to or slightly larger than the size of the first extension 1331 in order to accommodate the first extension 1331. The adapter sleeve 133 passes through the first through-hole 161, and the first extended portion 1331 is brought into contact with the first cross member 113 within the gap 150. This improves the structural stability between the mount structure 130, the housing 110, and the first cross member 113, and also allows the size D of the gap 150 to be made relatively small. In other words, only the first extended portion 1331 needs to be accommodated, thereby significantly improving the space utilization rate inside the battery 10.

[0079] In some embodiments, the first extension 1331 of the adapter sleeve 133 is provided with a mounting portion 1332 for fitting with a mounting fixture to attach the adapter sleeve 133. Providing the mounting portion 1332 at the end of the adapter sleeve 133 facilitates attachment to the adapter sleeve 133 using a suitable mounting fixture.

[0080] For example, the mounting portion 1332 may be a recess installed in the first extending portion 1331, the opening of which is provided toward the first wall 1111 along the first direction X, and which is used to lock the mounting fixture. The mounting fixture is locked into this recess, and a torsional force is applied to the adapter sleeve 133 from the end of the adapter sleeve 133 to fit the adapter sleeve 133 with the first sleeve 131, which is easy to implement and easy to operate.

[0081] The projection shape of this recess onto a plane perpendicular to the first direction X may be, for example, a "straight" shape, a "cross" shape, or a hexagon, and accordingly, the projection of the part of the mounting fixture that locks into this recess onto this plane may also be a "straight" shape, a "cross" shape, or a hexagon.

[0082] For example, in the structure of the adapter sleeve 133 shown in Figure 5, the mounting portion 1332 is a hexagonal recess, and accordingly, this mounting fixture uses a hexagonal wrench with a hole.

[0083] The adapter sleeve 133 has only an upper flange surface, but does not necessarily have a lower flange surface. For example, the end face of the first extension 1331 shown in Figure 5 that faces the first wall 1111 is the upper flange surface, or the adapter sleeve 133 may have both an upper flange surface and a lower flange surface.

[0084] In some embodiments, a second through-hole 162 is provided on the first wall 1111 at a position corresponding to the first through-hole 161, and the first sleeve 131 includes a second extension 1311 extending along a second direction Y, and the first sleeve 131 is configured to pass through the second through-hole 162 and abut against the first wall 1111 by the second extension 1311 on the side of the first wall 1111 away from the battery cell 120. In this way, a connection is made between the mounting structure 130 and the first wall 1111 of the housing 110.

[0085] For example, as shown in Figures 3 and 4, the first extension 1331 is located within a gap 150 between the first wall 1111 of the housing 110 and the third wall 1131 of the first cross member 113. The second extension 1311 of the first sleeve 131 and the first extension 1331 of the adapter sleeve 133 are located on the upper and lower sides of the first wall 1111 of the housing 110, respectively, and after the first sleeve 131 is connected to the adapter sleeve 133, the first extension 1331 and the second extension 1311 can sandwich the first wall 1111 along the first direction X.

[0086] Selectively, as shown in Figures 3 and 4, a first sealing material 141 is installed between the first extending portion 1331 and the first wall 1111. By providing the first sealing material 141, it is possible to some extent to prevent external liquid from entering the inside of the battery 10 from the contact point between the first extending portion 1331 and the first wall 1111. The first sealing material 141 may be, for example, a double sealing ring.

[0087] In some embodiments, as shown in Figures 3 and 4, the inner wall of the adapter sleeve 133 is fitted to the outer wall of the second sleeve 132 and the outer wall of the first sleeve 131, thereby achieving connection to the second sleeve 132 and the first sleeve 131. For example, screws may be installed on the inner wall of the adapter sleeve 131, the outer wall of the first sleeve 131, and the outer wall of the second sleeve 132, thereby connecting the adapter sleeve 133 to the first sleeve 131 and the second sleeve 132, respectively, by a screw-fitting method.

[0088] Selectively, as shown in Figures 3 and 4, a second sealing material 142 is installed between the inner wall of the adapter sleeve 133 and the outer wall of the second sleeve 132. By providing the second sealing material 142, it is possible to some extent to prevent external liquid from entering the inside of the battery 10 through the connection point between the adapter sleeve 133 and the second sleeve 132. The second sealing material 142 may be, for example, an O-type sealing ring.

[0089] To make it easier to understand, the diameter of the first through-hole 161 may be determined based on the diameter of the mounting structure 130. For example, the diameter of the position corresponding to the first through-hole 161 and the second sleeve 132 must be greater than or equal to the outer diameter of the second sleeve 132 so that the second sleeve 132 can be accommodated in the corresponding position in the first through-hole 161. Similarly, the diameter of the position corresponding to the first through-hole 161 and the adapter sleeve 133 must be greater than or equal to the outer diameter of the adapter sleeve 133 so that the adapter sleeve 133 can be accommodated in the corresponding position in the first through-hole 161. Of course, the diameter of the first through-hole 161 may be set to a fixed value greater than or equal to the outer diameter of the adapter sleeve 133. It should be noted that the diameter of the first through-hole 161 does not need to be too large, as it only needs to accommodate the mounting structure 130. If the diameter of the first through-hole 161 is too large, it may affect the overall strength of the first cross member 113.

[0090] In some embodiments, as shown in Figures 3 and 4, the battery 10 further includes a thermal management member 170 installed between the second wall 1112 of the housing 110 and the battery cell 120, wherein a third through-hole 163 is provided on the thermal management member 170 at a position corresponding to the first through-hole 161, and the end of the second sleeve 132 away from the adapter sleeve 133 extends along a second direction Y to form a third extension 1321, the second sleeve 132 passing through the third through-hole 163 and being configured to contact the thermal management member 170 by the third extension 1321 on the side of the thermal management member 170 away from the battery cell 120. In this way, the mounting structure 130 can provide mounting force to the battery 10 by the thermal management member 170.

[0091] The thermal management component 170 may be, for example, a heat exchange plate for achieving heat exchange in the battery cell 120. Generally, a water cooling plate or the like may be used as the heat exchange plate for the battery cell 120.

[0092] A third sealing material 143 is selectively installed between the third extension 1321 and the thermal management member 170. By providing the third sealing material 143, it is possible to some extent to prevent external liquid from entering the inside of the battery 10 from the connection point between the first sleeve 131 and the thermal management member 170. The third sealing material 143 may be, for example, a double sealing ring.

[0093] In some embodiments, as shown in Figure 6, the first wall 1111 of the housing 110 includes a first region 1111A and a second region 1111B, the first region 1111A being used for connection to a mounting structure 130, the first region 1111A and the second region 1111B having different heights along a first direction X, forming a housing space along the first direction X, which may be used to house external mechanisms, such as a cross member of the vehicle body. In other words, the upper wall of the housing 110 of the battery 10 may be provided with a housing recess for housing the external mechanisms of the battery 10, which is advantageous for improving the utilization rate of the interior space.

[0094] This application further provides a power consumption device comprising a battery 10 as described in any one of the above embodiments, the battery 10 being used to provide electrical energy to the power consumption device. This power consumption device may be, for example, the vehicle shown in Figure 1.

[0095] As can be seen here, the battery 10 of the embodiment of this application is mounted on the vehicle body by a mounting structure 130, the mounting structure 130 includes a second sleeve 132, a first sleeve 131, and an adapter sleeve 133, the adapter sleeve 133 having a first extension 1331 formed at its end. A first cross member 113 is installed inside the housing 110, and there is a gap 150 between the first cross member 113 and the housing 110. As a result, each sleeve of the mounting structure 130 is sequentially inserted into the first through-hole 161 at the corresponding position on the first cross member 113, positioning the first extension 1331 within the gap 150 and overlapping it with the first cross member 113. Because the thickness of the first extension 1331 is relatively small, the space utilization rate inside the battery 10 can be improved by making this gap 150 relatively small.

[0096] It should be noted that, insofar as they do not contradict each other, each embodiment and / or the technical features in each embodiment may be combined with each other as appropriate, and the resulting technical solutions should also be included within the scope of protection of this application.

[0097] This application has been written with reference to preferred embodiments, which are subject to various modifications and whose components can be replaced with equivalents, without departing from the scope of this application. In particular, the technical features of each section referred to in each embodiment can be combined in any way, provided that there is no structural inconsistency. This application is not limited to the specific embodiments disclosed herein, but includes all technical ideas included in the claims. [Explanation of Symbols]

[0098] 1 vehicle 10 batteries 20 controllers 30 motors 110 cabinets 111 First housing section 112 Second enclosure section 113 First cross member 120 battery cells 130 Mounting Structure 131 First Sleeve 132 Second Sleeve 133 Adapter Sleeve 141 First sealant 142 Second sealant 143 Third sealant 150 gap 161 First Through Hole 162 Second through hole 163 Third Through Hole 170 Thermal Management Components 1111 The First Wall 1111A First Domain 1111B Second Domain 1112 The Second Wall 1131 The Third Wall 1311 Second extension 1321 Third extension 1331 First extension 1332 Attachment part

Claims

1. It is a battery, Battery cell and A housing for housing the battery cell, comprising a first wall and a second wall installed opposite each other, wherein the first wall and the second wall intersect with a first direction, a first cross member is installed between the first wall and the second wall, the first cross member includes a third wall that intersects with the first direction and is close to the first wall, a gap is provided between the third wall and the first wall, and the first cross member has a first through-hole extending along the first direction, A battery comprising a mounting structure configured to pass at least partially through the first through-hole and to contact the third wall within the gap.

2. The battery according to claim 1, wherein the mounting structure includes a first sleeve, a second sleeve, and an adapter sleeve connected between the second sleeve and the first sleeve, the end of the adapter sleeve extending along a second direction at a predetermined angle with respect to the first direction to form a first extension, and the adapter sleeve passing through the first through-hole and being configured to contact the third wall in the gap by the first extension.

3. The battery according to claim 2, wherein a second through-hole is provided on the first wall at a position corresponding to the first through-hole, the first sleeve includes a second extension formed extending along the second direction, the first sleeve is connected to the adapter sleeve through the second through-hole and is configured to abut the first wall by the second extension on the side of the first wall away from the battery cell.

4. The battery according to claim 2 or 3, characterized in that a first sealing material is installed between the first extended portion and the first wall.

5. The battery according to any one of claims 2 to 4, characterized in that the inner wall of the adapter sleeve is fitted to the outer walls of the first sleeve and the second sleeve.

6. The battery according to claim 5, characterized in that a second sealing material is installed between the inner wall of the adapter sleeve and the outer wall of the second sleeve.

7. The battery according to any one of claims 2 to 6, further comprising a thermal management member for the battery cell, the thermal management member being installed between the second wall and the battery cell, having a third through-hole on the thermal management member at a position corresponding to the first through-hole, the second sleeve including a third extension formed extending along the second direction, the second sleeve being connected to the adapter sleeve through the third through-hole, and configured to abut the thermal management member by the third extension on the side of the thermal management member away from the battery cell.

8. The battery according to claim 7, characterized in that a third sealing material is installed between the third extended portion and the heat management member.

9. The battery according to any one of claims 2 to 8, characterized in that the predetermined angle is within one of the ranges of 90°±15°, 90°±10°, and 90°±5°.

10. The battery according to any one of claims 2 to 9, characterized in that the first extended portion is provided with a mounting portion for fitting with a mounting fixture to attach the adapter sleeve.

11. The battery according to claim 10, wherein the mounting portion is a recess installed in the first extending portion, the opening of the recess faces the first wall along the first direction, and the recess is used to lock with the mounting fixture.

12. The battery according to claim 11, characterized in that the recess is a hexagonal recess and the mounting fixture is a hexagonal wrench with a hole.

13. The angle between the first wall and the first direction is within one of the following ranges: 90°±15°, 90°±10°, or 90°±5°. The angle between the second wall and the first direction is within one of the following ranges: 90°±15°, 90°±10°, or 90°±5°. The battery according to any one of claims 1 to 12, characterized in that the angle between the third wall and the first direction is within one of the ranges of 90°±15°, 90°±10°, and 90°±5°.

14. The battery according to any one of claims 1 to 13, wherein the first wall includes a first region and a second region, the first region being used to connect to the mounting structure, the first region and the second region having different heights along the first direction to form a housing space along the first direction, and the housing space being used to house the external mechanism of the battery.

15. A power consumption device comprising a battery according to any one of claims 1 to 14, wherein the battery is used to provide electrical energy to the power consumption device.

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