Batteries and Power Consuming Devices

Abstract

The present invention relates to a battery and a power consumption device. The battery includes a battery cell, a first housing, and a second housing. The first housing includes a first sealing surface. The second housing includes a first surface and a second sealing surface, the first surface being used to support the battery cell. The first housing and the second housing together surround and form a sealed space that houses the battery cell, and the first sealing surface and the second sealing surface mate to form a first sealing interface for sealing the sealed space. The first sealing interface intersects with the first surface. This technical solution can improve the energy density of the battery.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority to PCT patent application PCT / CN2022 / 144191, entitled "Battery and Power Consumption Device," filed on December 30, 2022, the entire contents of which are incorporated herein by reference.

[0002] This application relates to the field of battery technology, and more particularly to batteries and power consuming devices. [Background technology]

[0003] Energy conservation and reduced pollutant emissions are key to the sustainable development of the automotive industry, and electric vehicles, with their energy-saving and environmentally friendly advantages, have become an important component of this industry. However, battery technology is a key factor in the development of electric vehicles.

[0004] In the development of battery technology, how to improve the energy density of batteries is one of the technical problems that needs to be solved quickly. Summary of the Invention

[0005] The present application provides a battery and a power consuming device that can improve the energy density of the battery.

[0006] This application is realized by the following technical solutions:

[0007] According to a first aspect, the present application provides a battery including a battery cell, a first housing, and a second housing. The first housing includes a first sealing surface. The second housing includes a first surface and a second sealing surface, the first surface being used to support the battery cell. The first housing and the second housing together enclose and form a sealed space that houses the battery cell, and the first sealing surface and the second sealing surface mate to form a first sealing interface for sealing the sealed space. The first sealing interface intersects with the first surface.

[0008] In the above solution, the first sealing interface is positioned to intersect with the first surface, i.e., the first sealing interface is not parallel to the first surface, thereby reducing the projection area of ​​the first sealing member relative to the first surface and reducing the space occupied by the first sealing interface in the direction parallel to the first surface, thereby improving the space utilization rate of the battery in the direction parallel to the first surface, allowing more battery cells to be accommodated or the volume of the battery to be reduced, and further improving the volumetric energy density of the battery.

[0009] According to some embodiments of the present application, the first sealing surface and the second sealing surface are parallel to a first direction, and the first sealing surface and the second sealing surface intersect with a second direction, both of which are parallel to the first surface.

[0010] In the above solution, the first sealing surface and the second sealing surface intersect with the second direction, i.e., the first sealing interface is disposed intersecting with the second direction. By arranging the first sealing interface intersecting with the second direction, the projected area of ​​the first sealing interface relative to the first surface can be reduced, and the space occupied by the first sealing interface in the second direction can be reduced, thereby improving the space utilization rate of the battery in the second direction, allowing for the accommodation of more battery cells or a reduction in the battery volume, and further improving the volumetric energy density of the battery. For example, by arranging the first sealing interface perpendicular to the second direction, a sealed connection between the first housing and the second housing can be achieved without the need for a flange structure protruding along the second direction, thereby improving the space utilization rate of the battery in the second direction, allowing for the accommodation of more battery cells or a reduction in the battery volume, and further improving the volumetric energy density of the battery.

[0011] According to some embodiments of the present application, a first seal member is installed between the first seal surface and the second seal surface, and the first seal member is located on one of the first seal surface and the second seal surface that is closer to the sealed space and away from the sealed space.

[0012] In the above solution, by installing a first sealing member between the first sealing surface and the second sealing surface, the sealing performance between the first sealing surface and the second sealing surface can be effectively improved, the risk of external substances entering the sealed space and damaging the battery cells can be reduced, and the reliability of the battery can be further improved.

[0013] According to some embodiments of the present application, along the width direction of the first sealing member, one end of the first sealing member is close to the sealed space and the other end of the first sealing member is close to the outside of the battery, and the width direction of the first sealing member intersects with the first surface.

[0014] In the above solution, by setting the width direction of the first sealing member to intersect with the first surface, the width direction of the first sealing member can be made non-parallel to the first surface. As a result, while the first sealing member can perform a good sealing function, the projection area of ​​the first sealing member relative to the first surface can be reduced, and the space occupied by the first sealing member in the direction parallel to the first surface can be reduced. This improves the space utilization rate of the battery in the direction parallel to the first surface, allowing more battery cells to be accommodated or the volume of the battery to be reduced, and further improving the volumetric energy density of the battery.

[0015] According to some embodiments of the present application, the second housing includes a second end wall and a second side wall, a first surface located on the second end wall, at least a portion of the second sealing surface installed on the second side wall, the second side wall connected to an end of the second end wall in the second direction and projected along the second direction, and at least a portion of the projection of the second side wall located on a side of the first surface adjacent to the battery cell.

[0016] In the above solution, the second housing includes a second end wall and a second side wall, the second end wall has a first surface capable of supporting the battery, and at least a portion of the second sealing surface may be located on the second side wall, thereby eliminating the need to set the thickness of the second end wall relatively large to meet the installation requirements for the width of the first sealing member, and enabling the installation of the second housing to be lighter or less costly while still meeting the installation requirements for the first sealing member.

[0017] According to some embodiments of the present application, along the second direction, at least a portion of the projection of the first seal member is located on a side of the first surface adjacent to the battery cell.

[0018] In the above solution, the second direction may be an arrangement direction of the first sealing surface and the second sealing surface, or the second direction may be a thickness direction of the first sealing surface, wherein at least a portion of the projection of the first sealing member in the second direction is located on a side of the first surface that is close to the battery cell, so that the first sealing member can have a relatively small size in the second direction as much as possible even when it has a relatively large width, thereby improving the sealing between the first sealing surface and the second sealing surface while minimizing an increase in the space occupation rate in the second direction as much as possible, and ensuring relatively high reliability of the battery.

[0019] According to some embodiments of the present application, the projection of the first seal member and the projection of the battery cell at least partially overlap along the second direction.

[0020] In the above solution, the projection of the first sealing member in the second direction at least partially overlaps with the projection of the battery cell, and at least a portion of the first sealing member can be positioned using the space covered by the projection of the battery cell along the second direction, so that the first sealing member has a relatively small size along the second direction while at the same time having the largest possible sealing width, thereby effectively improving the sealing performance between the first sealing surface and the second sealing surface and providing the battery with relatively high reliability.

[0021] According to some embodiments of the present application, the second housing includes a second end wall, the first surface is located on the second end wall, and the second sealing surface is a side wall surface of the second end wall perpendicular to the second direction.

[0022] In the above solution, the second housing has a simple structure. On the one hand, the second end wall of the second housing is a member for supporting the battery cell, and on the other hand, the second end wall of the second housing further has a second sealing surface for connecting to the first sealing surface of the first housing. This allows the second housing to have a relatively simple structure and meets the sealing requirements of the first sealing surface and the second sealing surface, reducing the processing costs of the second housing.

[0023] According to some embodiments of the present application, the first housing includes a first end wall and a first side wall connected to each other, the first end wall includes a first end wall surface positioned opposite the first surface, at least a portion of the first sealing surface is positioned on the first side wall, and at least a portion of the first side wall is located on a side of the first end wall surface adjacent to the first surface.

[0024] In the above solution, the first housing has a simple structure and is easy to manufacture. The first housing includes a first end wall and a first side wall that are connected to each other, and at least a portion of the first side wall is positioned adjacent to the first surface of the first end wall, thereby allowing the first housing and the second housing to enclose an enclosed space for accommodating the battery cells. On the other hand, the first sealing surface is formed on the first side wall, allowing the area of ​​the first sealing surface to be relatively large, thereby forming a good connection and good sealing with the second sealing surface and providing relatively high reliability for the battery.

[0025] According to some embodiments of the present application, at least a portion of the first sidewall is located on a side of the first surface away from the battery cell.

[0026] In the above solution, it can be understood that at least a portion of the first side wall is located on the side of the first surface away from the battery cells, and at least a portion of the first sealing surface is located on the side of the first surface away from the battery cells. On the one hand, the area of ​​the first sealing surface can be made as large as possible, thereby forming good connection stability and sealing performance between it and the second sealing surface; on the other hand, when the first sealing surface and the second sealing surface are connected to each other by another connecting member, because the first surface is the surface of the second end wall, the second end wall can provide the connecting member with a larger connection size along the second direction, thereby improving the locking strength of the connecting member against the first sealing surface and the second sealing surface, reducing the risk of the first sealing surface and the second sealing surface separating from each other, and providing relatively high reliability to the battery.

[0027] According to some embodiments of the present application, the second housing further includes a third side wall located at an end of the second end wall in the first direction, the third side wall extending toward and connected to the first housing.

[0028] In the above solution, by installing a third side wall at the end of the second end wall in the first direction, the second end wall can be connected to the first housing through the third side wall in the first direction, thereby improving the connection stability between the first housing and the second housing and further improving the reliability of the battery.

[0029] According to some embodiments of the present application, the third side wall includes a first flat surface away from the first surface and a second flat surface disposed transverse to the second direction, the first flat surface being adapted to form a sealing connection with the first end wall and the second flat surface being adapted to form a sealing connection with the first side wall.

[0030] In the above solution, the third side wall is connected to the first housing via the first flat surface and the second flat surface, which can effectively improve the connection stability and sealing performance between the first housing and the second housing, and provide the battery with relatively high reliability. Here, the second flat surface is disposed across the second direction and is used to seal with the first side wall, which can effectively improve the space utilization rate of the battery in the second direction, thereby accommodating more battery cells or reducing the volume of the battery, and further improving the volumetric energy density of the battery.

[0031] According to some embodiments of the present application, the battery further includes a second sealing member, the second sealing member being disposed between the third sidewall and the first housing.

[0032] In the above solution, by installing a second sealing member between the third side wall and the first housing, the sealing property between the third side wall and the first housing can be effectively improved, and the battery has relatively high reliability.

[0033] According to some embodiments of the present application, the first flat surface and the second flat surface are connected via a transition surface, the transition surface including an inclined surface and / or an arcuate surface, and a mating surface is formed at the connection point between the first end wall and the first side wall, and the mating surface is positioned corresponding to the transition surface.

[0034] In the above solution, the provision of the transition surface allows for a gradual transition between the first flat surface and the second flat surface, which is advantageous for the second sealing member to be in close contact with the surface where the third side wall and the first housing are connected to each other, and also reduces the risk of the second sealing member being damaged due to interference at the corner between the first flat surface and the second flat surface, resulting in a failure of the sealing member, thereby providing the battery with relatively high reliability.

[0035] According to some embodiments of the present application, the second seal member includes a first sub-seal member, a second sub-seal member, and a third sub-seal member, wherein the first sub-seal member is positioned between the first flat surface and the first end wall, the second sub-seal member is positioned between the second flat surface and the first side wall, and the third sub-seal member is positioned between the transition surface and the mating surface.

[0036] In the above solution, the second sealing member is configured as a first sub-sealing member, a second sub-sealing member, and a third sub-sealing member, and the first sub-sealing member, the second sub-sealing member, and the third sub-sealing member are respectively installed between the first flat surface and the first end wall, between the second flat surface and the first side wall, and between the transition surface and the mating surface, so that the second sealing member can be closely attached to the surface where the third side wall and the first housing are connected to each other, thereby improving the sealing performance between the first housing and the second housing, and further providing the battery with relatively high reliability.

[0037] According to some embodiments of the present application, the battery further includes a first fastening member, the first fastening member being drilled into the first sealing interface along the second direction and locked within the second end wall.

[0038] In the above solution, the first fastening member is drilled into the first sealing interface and installed so as to be locked inside the second end wall, which effectively improves the connection stability between the first housing and the second housing, thereby improving the structural stability of the battery and making the battery more reliable.

[0039] According to some embodiments of the present application, the portion where the first fastening member is locked to the second end wall is located on a side of the first surface away from the sealed space.

[0040] In the above solution, the portion of the first fastening member that is locked to the second end wall is positioned on the side of the first surface away from the sealed space. This prevents the first fastening member from occupying the sealed space, improving the utilization rate of the sealed space and the volumetric energy density of the battery, and also reduces the risk of the first fastening member interfering with the battery cells. On the other hand, the second end wall provides a relatively deep locking depth for the first fastening member, allowing it to be firmly locked to the second end wall, improving the connection stability between the first housing and the second housing, and providing the battery with relatively high reliability.

[0041] According to some embodiments of the present application, a projection of the first fastening member and a projection of the battery cell at least partially overlap along a direction perpendicular to the first surface.

[0042] In the above solution, the projection of the first fastening member and the projection of the battery cell are projected along a direction perpendicular to the first surface, and at least partially overlap each other, so that the second end wall provides a relatively deep locking depth for the first fastening member, thereby enabling the first fastening member to be firmly locked to the second end wall, improving the connection stability between the first housing and the second housing and providing relatively high reliability to the battery.

[0043] According to some embodiments of the present application, the second housing further includes a third side wall located at an end of the second end wall in the first direction, and the battery further includes a second fastening member, the second fastening member being used to connect the third side wall and the first housing, and the second fastening member being locked within the third side wall.

[0044] In the above solution, a third side wall is installed at the end of the second end wall in the first direction, and the third side wall and the first housing are connected by a second fastening member, thereby achieving a stable connection relationship between the third side wall and the first housing, thereby improving the connection stability between the first housing and the second housing and further improving the reliability of the battery.

[0045] According to some embodiments of the present application, a first sealing member is installed between the first sealing surface and the second sealing surface, and along a width direction of the first sealing member, one end of the first sealing member is close to the sealed space and the other end of the first sealing member is close to the outside of the battery, and the width direction of the first sealing member is parallel to the first surface.

[0046] In the above solution, the width direction of the first sealing member is set parallel to the first surface, for example, by making the width direction of the first sealing member parallel to the first direction, the space occupied in the second direction by the thickness of the first sealing member can be reduced while the first sealing member can perform a good sealing function, thereby improving the space utilization rate of the battery in the second direction, allowing more battery cells to be accommodated or the volume of the battery to be reduced, and further improving the volumetric energy density of the battery.

[0047] According to some embodiments of the present application, the second housing includes an enclosure having an opening formed along a first direction, and the first housing includes a closing plate that is pressed at least partially into the enclosure along the first direction to seal the opening.

[0048] In the above solution, the second housing may include a housing having an opening at an end in a first direction, and the battery cells may be placed in the housing through the opening. The first housing may include a closing plate that can be pressed into the housing along the first direction to seal the opening and thereby not occupy extra space in the second direction, i.e., the maximum size of the outer contour of the battery may be the maximum size of the outer contour of the housing, so that the battery has a relatively higher space utilization rate and can accommodate more battery cells or a smaller volume, resulting in a relatively high volumetric energy density.

[0049] According to some embodiments of the present application, the first housing further includes an elongated wall plate, at least a portion of the first sealing surface is disposed on the elongated wall plate, the elongated wall plate is disposed on an end of the closing plate in the second direction, and the closing plate has a cover surface facing the battery cell, and at least a portion of a projection of the elongated wall plate projected along the second direction is located on a side of the cover surface adjacent to the battery cell.

[0050] In the above solution, on the one hand, by installing the elongated wall plate, the area of ​​the first sealing surface can be set as large as possible, thereby effectively connecting the first sealing surface with the second sealing surface of the second housing, thereby improving the connection stability between the first housing and the second housing and improving the reliability of the battery; on the other hand, by setting at least a part of the projection of the elongated wall plate in the second direction to be located on the side of the cover surface close to the battery cells, it is possible to prevent the elongated wall plate from protruding and increasing the size of the entire battery in the first direction, thereby improving the space utilization rate of the battery in the first direction, allowing more battery cells or a smaller volume to be accommodated, and giving the battery a relatively high volumetric energy density.

[0051] According to some embodiments of the present application, along the second direction, at least a portion of the projection of the first seal member is located on a side of the lid surface adjacent to the battery cell.

[0052] In the above solution, at least a portion of the projection of the first sealing member along the second direction is positioned on the side of the cover surface closest to the battery cell, thereby improving the sealing between the extended wall panel and the second housing.

[0053] According to some embodiments of the present application, the projection of the first seal member and the projection of the battery cell at least partially overlap along the second direction.

[0054] In the above solution, the projection of the first sealing member in the second direction is set to at least partially overlap with the projection of the battery cell, so that the first sealing member occupies as little space in the first direction as possible, thereby improving the space utilization rate of the battery in the first direction, allowing more battery cells or a smaller volume to be accommodated, and giving the battery a relatively high volumetric energy density.

[0055] According to some embodiments of the present application, the second sealing surface is located on an inner wall surface of the enclosure, and at least a portion of the first sealing surface is located on an outer wall surface of the closing plate.

[0056] In the above solution, a first sealing surface can be installed on the outer wall surface of the blocking plate to connect with the inner wall surface of the enclosure, eliminating the need to install an additional connecting wall, making the processing of the housing easier and saving processing costs.

[0057] According to some embodiments of the present application, the battery further includes a first connecting member, which is drilled in the first sealing interface along the second direction and locked to the closing plate.

[0058] In the above solution, by installing a first connecting member to connect the blocking plate and the enclosure frame, the connection stability between the blocking plate and the enclosure frame can be improved, thereby improving the structural stability of the battery and giving the battery relatively high reliability.

[0059] According to some embodiments of the present application, a projection of the first connection member and a projection of the battery cell at least partially overlap along the first direction.

[0060] In the above solution, the projection of the first connection member and the projection of the battery cell at least partially overlap along the first direction, so that the closing plate provides a relatively deep locking depth for the first connection member, thereby enabling the first connection member to be firmly locked to the closing plate, improving the connection stability between the closing plate and the second housing, and providing relatively high reliability to the battery.

[0061] According to some embodiments of the present application, a battery includes at least one battery pack, the battery pack including a plurality of battery cells arranged in groups, and a binding member is installed in the battery pack, the binding member being used to bind the plurality of battery cells arranged in groups.

[0062] In the above solution, the battery cells arranged in groups in the battery pack are bound by a binding member and arranged regularly in the enclosed space, thereby improving the utilization rate of the enclosed space and further improving the energy density of the battery.

[0063] According to some embodiments of the present application, the battery pack includes a first battery pack and a second battery pack arranged adjacent to each other along a second direction. A first binding member is arranged on the first battery pack, a second binding member is arranged on the second battery pack, a first portion of the first binding member is arranged on a side of the first battery pack facing the second battery pack along the second direction, and a second portion of the second binding member is arranged on a side of the second battery pack facing the first battery pack along the second direction. A projection of the first portion and a projection of the second portion are offset from each other along the second direction, and a projection of the first portion and a projection of the second portion at least partially overlap each other along a direction perpendicular to the first surface.

[0064] In the above solution, by setting the projection of the first part along the second direction and the projection of the second part along the second direction to be offset from each other, and by setting the projection of the first part along the third direction and the projection of the second part along the third direction to be at least partially overlapping each other, the space occupied by the binding member in the second direction can be effectively reduced, the utilization rate of the enclosed space by multiple battery packs can be improved, and the volumetric energy density of the battery can be further improved.

[0065] According to some embodiments of the present application, the number of battery packs is plural, and the binding member includes an outer frame and a partition strip, the partition strip is disposed inside the outer frame and divides the inside of the outer frame into a plurality of sub-spaces, and each battery pack is disposed in a respective sub-space.

[0066] In the above solution, the binding member includes an outer frame and partition strips, and the partition strips divide the outer frame into multiple sub-spaces, allowing one binding member to bind multiple battery packs simultaneously, thereby reducing the occupied space of the binding member and allowing more battery cells to be accommodated in the sealed space, resulting in a battery with a relatively high volumetric energy density.

[0067] According to some embodiments of the present application, the number of battery packs is plural, and the plural battery packs are arranged along the second direction. The battery further includes end plates, the end plates being connected to end faces of the plural battery packs in the first direction, and the binding member being connected to the end plates.

[0068] In the above solution, the plurality of battery packs are arranged and installed along the second direction, and an end plate is installed at one end of the plurality of battery packs in the first direction and connected to the end plate by a binding member, so that the plurality of battery packs can be effectively integrated into one, the layout of the plurality of battery packs can be made compact, the utilization rate of the enclosed space can be improved, and the batteries can have a relatively high volumetric energy density.

[0069] According to some embodiments of the present application, the second housing includes a second end wall and a second side wall, the first surface is located on the second end wall, the second sealing surface is located on the second side wall, and the second side wall is connected to an end of the second end wall in the second direction. The battery pack includes a side battery pack arranged adjacent to the second side wall in the second direction, the binding member includes a side portion, the side portion is arranged on a side of the side battery pack facing the second side wall in the second direction, and the second side wall is located on a side of the side portion adjacent to the first surface.

[0070] In the above solution, the edge-side battery pack is installed adjacent to the second side wall, and the edge-side battery pack is constrained by the binding member and the second side wall in a direction perpendicular to the first surface, so that the edge-side battery pack can be stably installed in the sealed space. Here, it may be understood that the second side wall is located on the side of the edge portion closest to the first surface, and the size of the second side wall in the direction perpendicular to the first surface is made as small as possible, so that the edge-side battery pack can be stably installed in the sealed space under the constraint of the binding member.

[0071] According to some embodiments of the present application, the edge side portion and the second side wall are offset along the second direction, and the projection of the edge side portion and the projection of the second side wall projected along a direction perpendicular to the first surface at least partially overlap.

[0072] In the above solution, the projection of the edge side portion in the second direction and the projection of the second side wall in the second direction are set to be offset, and the projection of the edge side portion in the direction perpendicular to the first surface and the projection of the second side wall in the direction perpendicular to the first surface are set to be at least partially overlapping, thereby effectively reducing the space occupied by the binding member in the second direction, improving the utilization rate of the enclosed space by multiple battery packs, and further improving the volumetric energy density of the battery.

[0073] According to some embodiments of the present application, the second housing includes a second end wall, the first surface is located on the second end wall, and the battery further includes a plurality of mounting portions, all of which are located on a surface of the second end wall opposite the first surface.

[0074] In the above solution, a plurality of mounting portions are provided on the second end wall to stably mount the battery to the body of the power consuming device, thereby stably providing electrical energy to the power consuming device.

[0075] According to some embodiments of the present application, along a direction perpendicular to the first surface, projections of the plurality of mounting portions are located entirely within a projection range of the first surface.

[0076] In the above solution, the projection of the mounting portion along a direction perpendicular to the first surface is set to be completely within the projection range of the first surface, so that the mounting portion does not occupy any space other than the first surface, thereby making the battery structure compact and providing a relatively high volumetric energy density.

[0077] According to some embodiments of the present application, the battery cells are blade battery cells.

[0078] In the above solution, the battery cells are configured as blade battery cells, which can effectively improve the volumetric energy density of the battery.

[0079] According to a second aspect, the present application further provides a power consuming device comprising a main body and any one of the batteries of the first aspect, the battery being adapted to supply electrical energy to the main body.

[0080] In the above solution, the power consumption device adopts the battery having the above-mentioned relatively high energy density, so that it has a relatively long driving range and can meet more power consumption demands.

[0081] According to some embodiments of the present application, the first sealing surface and the second sealing surface are parallel to a first direction, and the first sealing surface and the second sealing surface intersect with a second direction, both of which are parallel to the first surface.

[0082] In the above solution, by setting the first sealing interface to intersect with the second direction and the second direction to be parallel to the first surface, it is possible to reduce the space occupied by the first sealing interface in the second direction while maintaining good sealing between the first sealing surface and the second sealing surface, thereby improving the space utilization rate of the battery in the second direction, allowing for the accommodation of more battery cells or a reduction in the volume of the battery, and further improving the volumetric energy density of the battery. For example, by setting the first sealing interface to intersect with the second direction, it is possible to achieve a sealed connection between the first housing and the second housing without installing a flange structure protruding along the second direction, thereby improving the space utilization rate of the battery in the second direction, allowing for the accommodation of more battery cells or a reduction in the volume of the battery, and further improving the volumetric energy density of the battery.

[0083] According to some embodiments of the present application, the main body includes a truck body frame, the truck body frame includes a driver's cab, a passenger compartment, and a battery frame located between the driver's cab and the passenger compartment, the battery frame is used to mount a battery, and the second direction is a direction in which the driver's cab faces the passenger compartment.

[0084] In the above solution, the second direction is the direction from the driver's cab to the passenger compartment, so that the power consumption device can use the battery provided above to rationally utilize the space between the driver's cab and the passenger compartment. By making the first sealing interface of the battery intersect with the first surface, the space occupied by the entire battery along the second direction can be reduced without affecting the sealing performance of the battery, and the passenger compartment can occupy more space in the second direction, thereby allowing it to carry more cargo, or the space saved along the second direction can be used to improve the cruising capacity of the battery itself.

[0085] According to some embodiments of the present application, the body includes a towing vehicle body frame, the towing vehicle body frame includes a cab, a towing bed, and a battery frame located between the cab and the towing bed, the battery frame is used to mount a battery, and the second direction is a direction in which the cab faces the towing bed.

[0086] In the above solution, the second direction is the direction from the cab toward the towing platform. Therefore, the power-consuming device can use the provided battery to rationally utilize the space between the cab and the towing platform. By making the first sealing interface of the battery intersect with the first surface, the space occupied by the entire battery in the second direction can be reduced without affecting the sealing performance of the battery. Furthermore, the towing platform can be installed closer to the cab, so that more space in the second direction of the body frame can be used to mount the vehicle cabin, thereby allowing for more cargo to be carried, or the space saved in the second direction can be used to improve the cruising capacity of the battery itself.

[0087] According to some embodiments of the present application, the main body includes a body frame, the body frame includes a vehicle beam, and the battery is attached to at least one side of the vehicle beam along the width direction of the body frame, and the second direction is the width direction of the vehicle beam.

[0088] In the above solution, the second direction is the width direction of the vehicle beam, so that the power consumption device can use the above-mentioned provided battery to rationally utilize the space in the width direction of the vehicle beam. By making the first sealing interface of the battery intersect with the first surface, the space occupied by the entire battery in the second direction can be reduced without affecting the sealing performance of the battery. When the arrangement space of the entire battery in the width direction of the vehicle beam is limited, the space saved by the above-mentioned arrangement of the first sealing interface can be used to improve the driving capacity of the battery itself.

[0089] The above description is merely a summary of the technical solution of the present application, which may be implemented according to the contents of the specification in order to more clearly understand the technical means of the present application. In order to make the above and other objectives, features and advantages of the present application more clearly understandable, the following particularly cites specific embodiments of the present application for description.

[0090] In order to more clearly explain the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the embodiments. It should be understood that the following drawings only illustrate some embodiments of the present application, and should not be considered as limiting the scope. Those skilled in the art can also derive other related drawings based on these drawings without exerting any creative efforts. [Brief explanation of the drawings]

[0091] [Figure 1] 1 is a schematic diagram of a vehicle according to some embodiments of the present application. [Figure 2] FIG. 1 is a three-dimensional view of a battery according to some embodiments of the present application. [Figure 3] 1 is an exploded view of a local structure of a battery cell in some embodiments of the present application. FIG. [Figure 4] FIG. 2 is a schematic diagram of a battery cell, a first surface, a first sealing surface, a second sealing surface, and a first sealing interface according to some embodiments of the present application. [Figure 5] FIG. 2 is a schematic diagram of a battery cell, a first surface, a first sealing surface, a second sealing surface, and a first sealing interface according to some embodiments of the present application. [Figure 6] FIG. 2 is a schematic diagram of a battery cell, a first surface, a first sealing surface, a second sealing surface, and a first sealing member according to some embodiments of the present application. [Figure 7] FIG. 2 is a three-dimensional view of a second housing according to some embodiments of the present application. [Figure 8] FIG. 8 is an enlarged view of a portion A in FIG. [Figure 9] 3 is a schematic diagram of a second end wall, a first sealing member, and a first sealing surface according to some embodiments of the present application. FIG. [Figure 10] FIG. 2 is a three-dimensional view of a first housing according to some embodiments of the present application. [Figure 11] FIG. 2 is a three-dimensional view of a battery according to some other embodiments of the present application. [Figure 12] FIG. 2 is a schematic diagram of a local structure of a second housing in some embodiments of the present application. [Figure 13] FIG. 2 is a schematic diagram of a local structure of a first housing in some embodiments of the present application. [Figure 14] 3A and 3B are schematic diagrams illustrating the local structure of a second sealing member in some embodiments of the present application. [Figure 15] 10A to 10C are schematic diagrams illustrating the local structure of a first housing in some other embodiments of the present application. [Figure 16] 10A to 10C are schematic diagrams of the local structure of a second housing in some other embodiments of the present application. [Figure 17] 10A and 10B are schematic diagrams of a second housing according to some other embodiments of the present application. [Figure 18] 10A-10C are schematic diagrams of a first fastening member and a first surface according to some other embodiments of the present application. [Figure 19] 2 is a schematic diagram of a specific structure of a battery in some other embodiments of the present application. FIG. [Figure 20] FIG. 10 is a schematic diagram of a first housing according to some other embodiments of the present application. [Figure 21] FIG. 1 is a schematic diagram of a battery pack according to some embodiments of the present application. [Figure 22] FIG. 2 is a schematic diagram of a first battery pack and a second battery pack according to some embodiments of the present application. [Figure 23] 10A and 10B are schematic diagrams of a binding member and a battery pack according to some other embodiments of the present application. [Figure 24] FIG. 2 is a schematic diagram of a battery pack and a second side wall according to some embodiments of the present application. [Figure 25] 1 is a schematic diagram of a power consuming device according to some embodiments of the present application. [Figure 26] 1 is a schematic diagram of a power consuming device according to some embodiments of the present application. [Figure 27] 1 is a schematic diagram of a power consuming device according to some embodiments of the present application. [Figure 28] FIG. 1 is a schematic diagram of a vehicle beam and a battery according to some embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0092] In order to clarify the objectives, technical solutions and advantages of the embodiments of the present application, the following will clearly describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without any creative efforts fall within the scope of protection of the present application.

[0093] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those skilled in the art of this application, and the terms used in the specification of this application are only for describing specific embodiments and are not intended to limit this application, and the terms "comprises," "has," and any variations thereof in the specification and claims of this application and the above drawings are intended to cover a non-exclusive "comprise." The terms "first," "second," etc. in the specification and claims of this application or the above drawings are intended to distinguish different objects, and are not intended to describe a specific order or a subordinate relationship, and are not intended to limit the number.

[0094] An "embodiment" referred to in this application means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of this phrase in various places in the specification do not necessarily all refer to the same embodiment, nor are they mutually exclusive, separate, or alternative embodiments of other embodiments.

[0095] In the description of this application, it should be explained that unless otherwise clearly defined or limited, the terms "attached," "connected," "joined," and "attached" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection, a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0096] The term "and / or" in this application merely describes the relationship between related objects and indicates that three relationships may exist, for example, A and / or B may represent three cases: A alone, a combination of A and B, and B alone. Also, the character " / " in this application generally indicates that the related objects before and after are in an "or" relationship.

[0097] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments will be omitted. It should be understood that the dimensions such as thickness, aspect, etc. of various components in the embodiments of the present application shown in the drawings, and the dimensions such as thickness, aspect, etc. of the entire integrated device are for illustrative purposes only and do not constitute any limitations on the present application.

[0098] The term "plurality" as used herein refers to two or more (including two).

[0099] In the embodiment of the present application, the battery cell may be a secondary battery, which is a battery cell that can be continuously used by activating the active material in a charging manner after discharging the battery cell.

[0100] The battery cells may be lithium ion batteries, sodium ion batteries, sodium lithium ion batteries, lithium metal batteries, sodium metal batteries, lithium sulfur batteries, magnesium ion batteries, nickel metal hydride batteries, nickel cadmium batteries, lead acid batteries, etc., and the embodiments of the present application are not limited thereto.

[0101] The battery cell may include an electrode assembly. The electrode assembly may include a positive electrode, a negative electrode, and a separator member. During charging and discharging of the battery cell, active ions (e.g., lithium ions) are absorbed and released by oscillating between the positive electrode and the negative electrode. The separator member, located between the positive electrode and the negative electrode, can prevent short-circuiting between the positive and negative electrodes while allowing ions to pass through.

[0102] In some embodiments, the electrode assembly is a wound structure, and the positive and negative electrode plates are wound into the wound structure.

[0103] In some embodiments, the electrode assembly may be cylindrical in shape.

[0104] In some embodiments, the electrode assembly is provided with tabs through which current can be drawn from the electrode assembly, including a positive electrode tab and a negative electrode tab.

[0105] In some embodiments, the battery cell may include a housing. The housing may be used to package components such as the electrode assembly and the electrolyte. The housing may be a steel housing, an aluminum housing, a plastic housing (e.g., polypropylene), a composite metal housing (e.g., a copper-aluminum composite housing), an aluminum-plastic film, or the like.

[0106] By way of example, the battery cells may be cylindrical battery cells, prismatic battery cells, pouch battery cells, or battery cells of other shapes.

[0107] The batteries referred to in the examples of this application refer to a single physical module containing one or more battery cells to provide higher voltage and capacity.

[0108] In some embodiments, the battery may be a battery module, and if there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0109] In some embodiments, the battery may be a battery pack, the battery pack including a housing and battery cells, the battery cells or battery modules being housed within the housing. The housing may include a first housing and a second housing, the first housing and the second housing being connected to each other and together enclosing an enclosed space. The second housing has a first surface, the first surface being used to support the battery cells, and the battery cells are placed in the enclosed space to prevent liquids or other foreign objects from affecting the charging or discharging of the battery cells.

[0110] In some embodiments, the housing may be part of a chassis structure of a vehicle, for example, a portion of the housing may be at least a portion of the floor of the vehicle, or a portion of the housing may be at least a portion of the side and longitudinal beams of the vehicle.

[0111] In some embodiments, the battery may be an energy storage device, including an energy storage container, an energy storage electrical cabinet, or the like.

[0112] In the development of battery technology, how to improve the energy density of a battery is one of the technical problems that need to be solved quickly. The inventor discovered that currently, the edges of the first and second housings of a battery are both provided with flange structures (generally protruding along a direction parallel to the first surface) that protrude outward from the battery, and a sealing interface is formed between the flange structures to achieve a sealing connection between the first and second housings. However, the protruding flange structures occupy space in the direction parallel to the first surface, which reduces the space utilization rate of the battery and affects the volumetric energy density of the battery.

[0113] In view of this, in order to alleviate the problem that the protruding flange structure occupies extra space, resulting in a low space utilization rate of the battery and affecting the energy density of the battery, some embodiments of the present application provide a battery including a battery cell, a first housing, and a second housing, wherein the first housing and the second housing together surround and form a sealed space that accommodates the battery cell, and a first seal interface formed by connecting the first housing and the second housing intersects with a first surface for supporting the battery cell.

[0114] In the above solution, the first sealing interface is positioned to intersect with the first surface, i.e., the first sealing interface is not parallel to the first surface, thereby reducing the projection area of ​​the first sealing member relative to the first surface and reducing the space occupied by the first sealing interface in the direction parallel to the first surface. This improves the space utilization rate of the battery in the direction parallel to the first surface, allowing more battery cells to be accommodated or the volume of the battery to be reduced, and further improving the volumetric energy density of the battery.

[0115] The batteries disclosed in the embodiments of the present application can be used in, but are not limited to, battery cabinets, container-type energy storage devices, etc. The energy storage device may include a plurality of the batteries disclosed in the present application.

[0116] The batteries disclosed in the embodiments of the present application can be used in, but are not limited to, power-consuming devices such as vehicles, ships, and aircraft, and the batteries disclosed in the present application can be used to configure the power supply systems of these power-consuming devices.

[0117] An embodiment of the present application provides a power-consuming device that uses a battery as a power source, and the power-consuming device may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric car, a steamship, a large truck, a large bus, a spacecraft, etc. Here, the electric toy may include a stationary or mobile electric toy, such as a game console, an electric car toy, an electric steamship toy, and an electric airplane toy, and the spacecraft may include an airplane, a rocket, a spacecraft, a spaceship, etc.

[0118] For convenience of explanation, the following embodiment will be described by taking an example in which the power consumption device of one embodiment of the present application is a vehicle 1000.

[0119] Referring to FIG. 1, FIG. 1 is a schematic diagram of a vehicle in some embodiments of the present application. The vehicle 1000 may be a gasoline-powered vehicle, a gas-powered 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, etc. The type of the vehicle 1000 may be a passenger car, an off-road vehicle, a large truck, or a large bus, etc. A battery 100 is installed inside the vehicle 1000, and the battery 100 may be installed at the bottom, head, or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000, for example, as an operating power source for the vehicle 1000 and for the circuit systems of the vehicle 1000, such as for the operating power consumption needs of the vehicle 1000 during startup, navigation, and driving.

[0120] The vehicle 1000 may further include a controller 200 and a motor 300, where the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting the vehicle 1000, navigation, and operating power consumption needs during driving.

[0121] In some embodiments of the present application, the battery 100 can not only be the operating power source for the vehicle 1000, but can also be the driving power source for the vehicle 1000, providing driving power to the vehicle 1000 in place of or in place of fuel oil or natural gas.

[0122] According to some embodiments of the present application, a battery 100 is provided. Referring to Figures 2 to 5, Figure 2 is a three-dimensional view of the battery 100 in some embodiments of the present application, Figure 3 is a three-dimensional exploded view of the local structure of the battery 100 in some embodiments of the present application, Figure 4 is a schematic view of a battery cell 101, a first surface 21, a first sealing surface 11, a second sealing surface 22, and a first sealing interface 103 in some embodiments of the present application, and Figure 5 is a schematic view of a battery cell 101, a first surface 21, a first sealing surface 11, a second sealing surface 22, and a first sealing interface 103 in some embodiments of the present application.

[0123] The battery 100 includes a battery cell 101, a first housing 10, and a second housing 20. The first housing 10 includes a first sealing surface 11. The second housing 20 includes a first surface 21 and a second sealing surface 22. The first surface 21 is used to support the battery cell 101. The first housing 10 and the second housing 20 together surround and form a sealed space 102 that houses the battery cell 101. The first sealing surface 11 and the second sealing surface 22 mate to form a first sealing interface 103 for sealing the sealed space 102. The first sealing interface 103 intersects with the first surface 21.

[0124] The battery 100 may include a first housing 10 and a second housing 20, which are connected to each other (e.g., the first housing 10 and the second housing 20 are placed over each other), and the first housing 10 and the second housing 20 together define an enclosed space 102 for accommodating the battery cells 101.

[0125] Alternatively, the first housing 10 and the second housing 20 may both have a hollow structure with one open end, and the open side of the first housing 10 and the open side of the second housing 20 may fit together to define an enclosed space 102 (see FIG. 3 ) together with the first housing 10 and the second housing 20. Alternatively, the first housing 10 may have a hollow structure with one open end, and the second housing 20 may have a plate-like structure, and the second housing 20 is installed on the open side of the first housing 10 to define an enclosed space 102 (see FIG. 11 ) together with the first housing 10 and the second housing 20. Alternatively, the second housing 20 may have a hollow structure with one open end, and the first housing 10 may have a plate-like structure, and the first housing 10 is installed on the open side of the second housing 20 to define an enclosed space 102 (see FIG. 19 ) together with the first housing 10 and the second housing 20.

[0126] Of course, the housing formed by the first housing 10 and the second housing 20 may have various shapes, such as a rectangular parallelepiped or a cylindrical body, etc. Illustratively, as shown in FIG. 2, the housing has a rectangular parallelepiped structure.

[0127] Alternatively, the battery cell 101 installed in the sealed space 102 may be one or more. For example, the battery 100 may include a plurality of battery cells 101, and the plurality of battery cells 101 may be connected in series, parallel, or series-parallel, where series-parallel connection refers to both series and parallel connections among the plurality of battery cells 101. The plurality of battery cells 101 may be directly connected in series, parallel, or series-parallel, and the entirety of the plurality of battery cells 101 may be housed in the sealed space 102. Of course, the battery 100 may also be formed by first connecting the plurality of battery cells 101 in series, parallel, or series-parallel to form a battery module, and then connecting the plurality of battery modules in series, parallel, or series-parallel to form an integrated battery module housed in the sealed space 102.

[0128] In some embodiments, the second housing 20 may be considered to be a portion that primarily supports the battery cells 101. For example, in some embodiments, the second housing 20 may be used as a lower housing for the battery 100, and a first surface 21 of the second housing 20 is a surface that supports the battery cells 101, and the battery cells 101 may be placed on the first surface 21. In some embodiments, the first housing 10 may be considered to be a member that fits with the second housing 20 and forms the enclosed space 102 together with the second housing 20. For example, in some embodiments, the first housing 10 may be considered to be an upper housing for the battery 100. In some embodiments, the materials of the first housing 10 and the second housing 20 may be different or the same. In some embodiments, the materials of the first housing 10 and the second housing 20 may each be aluminum, an aluminum alloy, stainless steel, plastic, or the like. Here, when the second housing 20 is used mainly as a part supporting the battery cells 101, the second housing 20 may be manufactured using a material with relatively high structural strength, for example, aluminum alloy, steel or other material with relatively high structural strength, and the first housing 10 may be manufactured using a material with relatively low density, for example, plastic, thereby minimizing the impact of the mass of the first housing 10 on the mass energy density of the battery 100.

[0129] The first sealing surface 11 is a surface of the first housing 10 for sealingly connecting with the second sealing surface 22 of the second housing 20, and the second sealing surface 22 is a surface of the second housing 20 for sealingly connecting with the first sealing surface 11 of the first housing 10. In some embodiments, the function of the sealing engagement between the first sealing surface 11 and the second sealing surface 22 is to seal the sealed space 102 and reduce interference of external substances with the battery cells 101 in the sealed space 102.

[0130] In some embodiments, the first sealing surface 11 and the second sealing surface 22 may be connected by welding, adhesive, or other connecting members (eg, threaded members).

[0131] In some embodiments, the first seal interface 103 may be understood to be an interface where the first seal surface 11 and the second seal surface 22 are stacked together in the arrangement direction of the first seal surface 11 and the second seal surface 22. Alternatively, the first seal interface 103 may be understood to be an interface that forms an effective seal between the first seal surface 11 and the second seal surface 22. Alternatively, the first seal interface 103 may be understood to be an interface formed between the first seal surface 11 and the second seal surface 22 that can be used to install a seal member, gasket, sealant, or the like, and that can achieve an effective seal between the first seal surface 11 and the second seal surface 22.

[0132] 4 and 5, the first seal interface 103 may be considered to be an interface where the first seal surface 11 and the second seal surface 22 are connected to each other and are located between the first seal surface 11 and the second seal surface 22 and perform a sealing function.

[0133] The phrase "first seal interface 103 intersects with first surface 21" may be understood to mean that the plane on which first seal interface 103 lies is perpendicular or inclined to the plane on which first surface 21 lies, i.e., the plane on which first seal interface 103 lies is not coplanar or parallel to the plane on which first surface 21 lies. In some embodiments, first seal interface 103 may be perpendicular to first surface 21; for example, in FIG. 4 , first surface 21 may be considered a horizontal plane, and first seal interface 103 may be a vertical plane. In other embodiments, first seal interface 103 may be inclined relative to first surface 21; for example, when first surface 21 is a horizontal plane, first seal interface 103 is an inclined plane, and the angle between this inclined plane and the horizontal plane may be greater than 0 degrees and less than 90 degrees.

[0134] 2 and 3 , the first housing 10 may include a first end wall 12 and a first side wall 13, and the second housing 20 may include a second end wall 23, the first end wall 12 and the second end wall 23 being disposed opposite each other in a third direction z, and the second end wall 23 having a first surface 21 formed thereon, the first surface 21 being disposed perpendicular to the third direction z. The first side wall 13 may extend along the third direction z, the first side wall 13 having a first sealing surface 11 parallel to the third direction z, and the second housing 20 having a second sealing surface 22 parallel to the third direction z, the first sealing surface 11 and the second sealing surface 22 being connected to each other, and a first sealing interface 103 formed thereby being parallel to the third direction z, i.e., perpendicular to the plane in which the first surface 21 lies.

[0135] In the above solution, the first sealing interface 103 is set to intersect with the first surface 21, i.e., the first sealing interface 103 is not parallel to the first surface 21, thereby reducing the projection area of ​​the first sealing interface relative to the first surface and reducing the space occupied by the first sealing interface 103 in the direction parallel to the first surface 21. This improves the space utilization rate of the battery 100 in the direction parallel to the first surface 21, allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100.

[0136] According to some embodiments of the present application, the first sealing surface 11 and the second sealing surface 22 are parallel to a first direction x, and the first sealing surface 11 and the second sealing surface 22 intersect with a second direction y, both of which are parallel to the first surface 21.

[0137] The phrase "the first seal surface 11 and the second seal surface 22 are parallel to the first direction x" may be understood to mean that the first direction x does not pass through the first seal surface 11 and the second seal surface 22. It may also be understood that the first seal surface 11 and the second seal surface 22 are arranged and disposed along the first direction x, and the first seal surface 11 and the second seal surface 22 can be disposed opposite each other along the first direction x, thereby forming a first seal interface 103.

[0138] The second direction y may be a direction intersecting the first direction x. "The first seal surface 11 and the second seal surface 22 intersect with the second direction y" may be understood to mean that the second direction y can pass through the first seal surface 11 and the second seal surface 22, or that the second direction y intersects with the first seal interface 103, i.e., the second direction y passes through the first seal interface 103. In some embodiments, the first seal surface 11 and the second seal surface 22 may be perpendicular to the second direction y. In some embodiments, the first seal interface 103 may be perpendicular to the second direction y.

[0139] The first direction x and the second direction y are directions parallel to the first surface 21, and may be understood as directions that do not pass through the first surface 21. For example, in some embodiments, the first surface 21 may have a rectangular shape, the first direction x may be parallel to the longitudinal direction or width direction of the rectangular surface, and the second direction y may be parallel to the width direction or length direction of the rectangular surface. In some embodiments, the first direction x may be parallel to the longitudinal direction of the rectangular first surface 21, and the second direction y may be parallel to the width direction of the first surface 21. The first sealing surface 11 and the second sealing surface 22 may be located on one side of the first surface 21 in the width direction, and the first sealing surface 11 and the second sealing surface 22 are arranged in an array in the width direction, and the first sealing interface 103 is formed between the first sealing surface 11 and the second sealing surface 22.

[0140] In a battery 100 having a conventional outer convex flange structure, the flange structure may protrude along the second direction y, i.e., the sealing interface between the flange structures may be parallel to the second direction y. In the above solution, by setting the first sealing interface 103 to intersect with the second direction y, the space occupied by the first sealing interface 103 in the second direction y can be reduced, thereby improving the space utilization of the battery 100 in the second direction y, allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100. For example, by setting the first sealing interface 103 to be perpendicular to the second direction y, the space utilization of the battery 100 in the second direction y can be improved, allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100.

[0141] According to some embodiments of the present application, referring to Figures 3 and 6, Figure 6 is a schematic diagram of a battery cell 101, a first surface 21, a first sealing surface 11, a second sealing surface 22, and a first sealing member 30 in some embodiments of the present application.

[0142] A first seal member 30 is installed between the first seal surface 11 and the second seal surface 22, and the first seal member 30 is located on the side of the first seal surface 11 or the second seal surface 22 that is closer to the sealed space 102 and away from the sealed space 102.

[0143] The first sealing member 30 may be a member that has sealing properties and is disposed between the first sealing surface 11 and the second sealing surface 22. In some embodiments, the first sealing member 30 may be a sealant or gasket, and the first sealing member 30 is sandwiched between the first sealing surface 11 and the second sealing surface 22.

[0144] In some embodiments, the first sealing member 30 may be a flat plate-like member, and the first sealing surface 11 and the second sealing surface 22 both fit tightly to the first sealing member 30 and deform the first sealing member 30 to fill the uneven gaps corresponding to the first sealing surface 11 and the second sealing surface 22 of the first housing 10 and the second housing 20, thereby forming an effective seal between the first sealing surface 11 and the second sealing surface 22.

[0145] In some embodiments, the first seal member 30 may be connected to the first housing 10 and the second housing 20 by abutment, pressure, adhesive, or other connecting methods using other connecting members (e.g., threaded members). For example, the first housing 10 and the second housing 20 may be mated together, and the first seal surface 11 and the second seal surface 22 may be pressed or abutted against each other due to the elasticity of the materials of the first housing 10 and the second housing 20 themselves, thereby clamping the first seal member 30 between the first seal surface 11 and the second seal surface 22. For example, the first housing 10 and the second housing 20 may be connected by bolts that pass through the first seal surface 11, the first seal member 30, and the second seal surface 22, thereby clamping the first seal member 30 between the first seal surface 11 and the second seal surface 22.

[0146] The phrase "the first seal member 30 is located on one of the first seal surface 11 and the second seal surface 22 that is closer to the sealed space 102 and away from the sealed space 102" may be understood to mean that the arrangement direction of the first seal surface 11, the second seal surface 22, and the first seal member 30 is not perpendicular to the first surface 21. In some embodiments, the first seal surface 11, the first seal member 30, and the second seal surface 22 may be arranged in this order along the second direction y, where the first seal surface 11 is closer to the sealed space 102 than the first seal member 30 and the second seal surface 22. In other embodiments, the second seal surface 22, the first seal member 30, and the first seal surface 11 may be arranged in this order along the second direction y, where the second seal surface 22 is closer to the sealed space 102 than the first seal member 30 and the first seal surface 11.

[0147] In the above solution, by installing the first sealing member 30 between the first sealing surface 11 and the second sealing surface 22, the sealing performance between the first sealing surface 11 and the second sealing surface 22 can be effectively improved, the risk of external substances entering the sealed space 102 and damaging the battery cell 101 can be reduced, and the reliability of the battery 100 can be further improved.

[0148] According to some embodiments of the present application, along the width direction of the first sealing member 30 (the width direction of the first sealing member 30 is indicated by the symbol w in the figures), one end of the first sealing member 30 is close to the sealed space 102 and the other end of the first sealing member 30 is close to the outside of the battery 100, and the width direction of the first sealing member 30 intersects with the first surface 21.

[0149] The width direction, the longitudinal direction, and the thickness direction of the first seal member 30 are perpendicular to each other, two by two, of the first seal member 30. Here, the thickness direction of the first seal member 30 may be the arrangement direction of the first seal surface 11 and the second seal surface 22, and for example, the thickness direction of the first seal member 30 may be the second direction y.

[0150] In some embodiments, the longitudinal direction of the first seal member 30 may be a direction parallel to the first surface 21. For example, the longitudinal direction of the first seal member 30 may be the first direction x. In some embodiments, when the first direction x and the second direction y are both parallel to the first surface 21 and perpendicular to each other, the width direction of the first seal member 30 may be a direction perpendicular to the first surface 21. In some embodiments of the present application, the direction perpendicular to the first surface 21 is defined as the third direction z. Referring to FIG. 3 , the first seal member 30 may extend along the first direction x, thereby covering the area where sealing between the first seal surface 11 and the second seal surface 22 is required in the first direction x and improving the sealing performance between the first seal surface 11 and the second seal surface 22.

[0151] In some other embodiments, the longitudinal direction of the first seal member 30 may be a direction intersecting the first surface 21, for example, the longitudinal direction of the first seal member 30 may be the third direction z, and the width direction of the first seal member 30 may be a direction parallel to the first surface 21, for example, the first direction x. For example, referring to FIG. 19 , the second housing 20 may be an enclosure 26, an end of the enclosure 26 in the first direction x has an opening, the first housing 10 is pressed into the second housing 20 along the first direction x to seal the opening, the first sealing surface 11 is perpendicular to the first surface 21, and the first sealing surface 11 is parallel to the first direction x and perpendicular to the second direction y, and at this time, the width direction of the first seal member 30 may be parallel to the first direction x, i.e., parallel to the first surface 21.

[0152] In the above solution, by setting the width direction of the first sealing member 30 to intersect with the first surface 21, the width direction of the first sealing member 30 can be made not parallel to the first surface 21. As a result, while the first sealing member 30 can perform a good sealing function, the projection area of ​​the first sealing member relative to the first surface can be reduced, and the space occupied by the first sealing member 30 in the direction parallel to the first surface 21 can be reduced. This improves the space utilization rate of the battery 100 in the direction parallel to the first surface 21, allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100.

[0153] 7 and 8, according to some embodiments of the present application, Fig. 7 is a three-dimensional view of the second housing 20 in some embodiments of the present application, and Fig. 8 is an enlarged view of portion A in Fig. 7. The second housing 20 includes a second end wall 23 and a second side wall 24, the first surface 21 is located on the second end wall 23, at least a portion of the second sealing surface 22 is installed on the second side wall 24, the second side wall 24 is connected to an end of the second end wall 23 in the second direction y, and at least a portion of the projection of the second side wall 24 projected along the second direction y is located on a side of the first surface 21 that is close to the battery cell 101.

[0154] The second end wall 23 may be a main portion of the second housing 20, and has a first surface 21 for supporting the battery 100. In some embodiments, the first surface 21 is a surface of the second end wall 23 in the third direction z, and the first surface 21 is disposed toward the first housing 10. Here, in some embodiments, the second end wall 23 may have a plate-like structure, and the first surface 21 is one surface of the second end wall 23 in the third direction z, for example, the first surface 21 is the upper surface of the second end wall 23, and the lower surface of the second end wall 23 is the surface away from the sealed space 102. In some other embodiments, the lower surface of the first end wall 12 is defined as the surface of the second end wall 23 that is away from the sealed space 102, and the upper surface of the first end wall 12 is defined as the surface that is away from the lower surface of the first end wall 12. The first surface 21 may be a part of the upper surface of the second end wall 23; for example, a groove may be formed on the upper surface of the second end wall 23, and the first surface 21 may be the bottom surface of the groove. Alternatively, for example, a protrusion may be formed on the upper surface of the second end wall 23, and the first surface 21 may be the surface of the protrusion.

[0155] The second side wall 24 is a member provided at the end of the second end wall 23 in the second direction y. For example, the second side wall 24 may be provided on a side surface of the second end wall 23 in the second direction y, or, for example, the second side wall 24 may be provided on the upper surface of the second end wall 23 and adjacent to the side surface of the second end wall 23 in the second direction y. The second side wall 24 may be connected to the second end wall 23 by welding, adhesive bonding, bolt connection, or the like, or the second side wall 24 may be integrally formed with the second end wall 23.

[0156] Here, in some embodiments, the second end wall 23 may have a rectangular shape, and the second housing 20 may include two second side walls 24, which are spaced apart and opposite each other in the second direction y. Each second side wall 24 has a second sealing surface 22 formed thereon, and two corresponding first sealing surfaces 11 are provided on the first housing 10. This eliminates the need for protruding flange structures on both ends of the battery 100 in the second direction y, thereby effectively improving the space utilization rate of the battery 100. In other embodiments, the second housing 20 may include two second side walls 24, and the second sealing surface 22 is provided on only one of the second side walls 24. In other embodiments, the second housing 20 may include only one second side wall 24, and the portion of the second housing 20 corresponding to the second side wall 24 in the second direction y may be connected to the second end wall 23 by a structure of the first housing 10.

[0157] The phrase "at least a portion of second sealing surface 22 is located on second side wall 24" may be understood to mean that second side wall 24 is connected to first housing 10 and forms first sealing interface 103 with first housing 10, and that at least a portion of first sealing member 30 is located between second side wall 24 and first housing 10. In some embodiments, the entire portion of second sealing surface 22 may be located on second side wall 24. In some embodiments, a portion of second sealing surface 22 may be located on second side wall 24, and another portion may be located on second end wall 23.

[0158] In some embodiments, at least a portion of the second side wall 24 may protrude from the first surface 21. Referring to FIG. 8 , the second side wall 24 is used to connect to a side surface of the first end wall 12, and a portion of the second side wall 24 protrudes from the first surface 21. The portion of the second side wall 24 protruding from the first surface 21 can restrain the battery cell 101 located in the sealed space 102, and the portion of the second side wall 24 protruding from the first surface 21 can provide a larger supporting area for the first sealing member 30, resulting in a good sealing area, thereby allowing the first sealing member 30 to be stably positioned between the first sealing surface 11 and the second sealing surface 22 and achieving a good sealing effect.

[0159] The phrase "at least a portion of the projection of the second side wall 24 projected along the second direction y is located on the side of the first surface 21 closest to the battery cell 101" may be understood to mean that at least a portion of the second side wall 24 protrudes from the first surface 21, i.e., at least a portion of the second sealing surface 22 protrudes from the first surface 21.

[0160] In the above solution, the second housing 20 includes a second end wall 23 and a second side wall 24, the second end wall 23 has a first surface 21 capable of supporting the battery 100, and the second sealing surface 22 may be at least partially located on the second side wall 24, thereby eliminating the need to set the thickness of the second end wall 23 relatively large to meet the installation requirements for the width of the first sealing member 30. This can reduce the weight or cost of installing the second housing while still meeting the installation requirements for the first sealing member 30.

[0161] According to some embodiments of the present application, referring to FIG. 6 , along the second direction y, at least a portion of the projection of the first seal member 30 is located on the side of the first surface 21 closest to the battery cell 101.

[0162] "Along the second direction y, at least a portion of the projection of the first sealing member 30 is located on the side of the first surface 21 that is closest to the battery cell 101" may be understood to mean that at least a portion of the first sealing member 30 protrudes from the first surface 21, for example, a portion of the first sealing member 30 is located on the side of the first surface 21 that is away from the sealed space 102, and another portion of the first sealing member 30 is located on the side of the first surface 21 that is closest to the battery cell 101, or, for example, the entire first sealing member 30 is located on the side of the first surface 21 that is closest to the battery cell 101.

[0163] Referring to Figure 6, the first seal member 30 is sandwiched between the first seal surface 11 and the second seal surface 22, and when the first surface 21 is located between both ends of the first seal surface 11 along the third direction z, the first seal surface 11 may be partially located below the first surface 21 and the remaining portion may be located above the first surface 21.

[0164] In the above solution, the second direction y may be the arrangement direction of the first sealing surface 11 and the second sealing surface 22, or the second direction y may be the thickness direction of the first sealing surface 11. Here, at least a portion of the projection of the first sealing member 30 in the second direction y is located on the side of the first surface 21 that is closest to the battery cell 101, so that the first sealing member 30 can have a relatively small size in the second direction y as much as possible even when it has a relatively large width, thereby improving the sealing performance between the first sealing surface 11 and the second sealing surface 22 while minimizing an increase in the space occupation rate in the second direction y as much as possible, and providing the battery 100 with relatively high reliability.

[0165] According to some embodiments of the present application, referring to FIG. 6, along the second direction y, the projection of the first seal member 30 and the projection of the battery cell 101 at least partially overlap.

[0166] "Along the second direction y, the projection of the first sealing member 30 and the projection of the battery cell 101 at least partially overlap" may be understood to mean that the projection of the portion of the first sealing member 30 protruding from the first surface 21 along the second direction y can overlap with the battery cell 101 located in the sealed space 102, and that the width of the first sealing member 30 is relatively wide, and to a relatively wide extent, the projection of the first sealing member 30 and the projection of the battery cell 101 can at least partially overlap along the second direction y.

[0167] Referring to Figure 6, the first sealing member 30 is sandwiched between the first sealing surface 11 and the second sealing surface 22, and along the third direction z, the first sealing surface 11 extends along the third direction z and extends to the battery cell 101, and in the second direction y, the projection of the first sealing surface 11 and the projection of the battery cell 101 at least partially overlap, and the first sealing member 30 may correspondingly extend along the third direction z.

[0168] In the above solution, the projection of the first sealing member 30 in the second direction y at least partially overlaps with the projection of the battery cell 101, and at least a portion of the first sealing member 30 can be positioned using the space covered by the projection of the battery cell 101 along the second direction y, so that the first sealing member 30 has a relatively small size along the second direction y while at the same time having the largest possible sealing width, thereby effectively improving the sealing performance between the first sealing surface 11 and the second sealing surface 22 and making the battery 100 have relatively high reliability.

[0169] According to some embodiments of the present application, reference is made to FIG. 9, which is a schematic diagram of the second end wall 23, the first seal member 30, and the first seal surface 11 in some embodiments of the present application.

[0170] The second housing 20 includes a second end wall 23, the first surface 21 is located on the second end wall 23, and the second sealing surface 22 is a side wall surface of the second end wall 23 that is perpendicular to the second direction.

[0171] The second end wall 23 may be a main portion of the second housing 20, and has a first surface 21 for supporting the battery 100. In some embodiments, the first surface 21 is a surface of the second end wall 23 in the third direction z, and the first surface 21 is disposed toward the first housing 10. Here, in some embodiments, the second end wall 23 may have a plate-like structure, and the first surface 21 is one surface of the second end wall 23 in the third direction z, for example, the first surface 21 is the upper surface of the second end wall 23, and the lower surface of the second end wall 23 is the surface away from the sealed space 102. In some other embodiments, the lower surface of the first end wall 12 is defined as the surface of the second end wall 23 that is away from the sealed space 102, and the upper surface of the first end wall 12 is defined as the surface that is away from the lower surface of the first end wall 12. The first surface 21 may be a part of the upper surface of the second end wall 23; for example, a groove may be formed on the upper surface of the second end wall 23, and the first surface 21 may be the bottom surface of the groove. Alternatively, for example, a protrusion may be formed on the upper surface of the second end wall 23, and the first surface 21 may be the surface of the protrusion.

[0172] The side wall surface of the second end wall 23 in the second direction y may form the second sealing surface 22. The side wall surface of the second end wall 23 in the second direction y may be understood as being penetrated in the second direction and being perpendicular to the second direction y.

[0173] Here, in some embodiments, the second end wall 23 may be rectangular, and two side walls thereof in the second direction y may both form the second sealing surface 22, thereby sealingly engaging with the first sealing surface 11 of the first housing 10. In other embodiments, one side wall of the second end wall 23 in the second direction y may form the second sealing surface 22, thereby sealingly engaging with one first sealing surface 11 of the first housing 10.

[0174] In the above solution, the second housing 20 has a simple structure. On the one hand, the second end wall 23 of the second housing 20 is a member for supporting the battery cell 101. On the other hand, the second end wall 23 of the second housing 20 further has a second sealing surface 22 for connecting to the first sealing surface 11 of the first housing 10. This allows the second housing 20 to have a relatively simple structure and meets the sealing requirements of the first sealing surface 11 and the second sealing surface 22, thereby reducing the processing costs of the second housing 20.

[0175] According to some embodiments of the present application, reference is made to FIG. 10, which is a three-dimensional view of the first housing 10 in some embodiments of the present application.

[0176] The first housing 10 includes a first end wall 12 and a first side wall 13 connected to each other, the first end wall 12 includes a first end wall surface 120 positioned opposite the first surface 21, at least a portion of the first sealing surface 11 is positioned on the first side wall 13, and at least a portion of the first side wall 13 is located on the side of the first end wall surface 120 closest to the first surface 21.

[0177] First end wall 12 may be located opposite second end wall 23, and in some embodiments, first housing 10 may be the upper housing of battery 100, second housing 20 may be the lower housing of battery 100, first end wall 12 may be the top cover or wall of battery 100, and second end wall 23 may be the bottom plate or wall of battery 100. First end wall surface 120 is the surface of first end wall 12 facing first surface 21, and first end wall surface 120 may be the inner surface of first end wall 12.

[0178] The first side wall 13 is connected to the first end wall 12, and in some embodiments, the first side wall 13 is bent from the first end wall 12 and extends toward the second housing 20; for example, the first side wall 13 is disposed perpendicular to the first end wall 12 and extends along the third direction z. The first side wall 13 may be connected to the first end wall 12 by welding, adhesive bonding, bolting, or the like, or the first side wall 13 may be integrally formed with the first end wall 12.

[0179] "At least a portion of the first sealing surface 11 is located on the first side wall 13" may be understood to mean that one end of the first side wall 13 is connected to the first end wall 12 and the other end is connected to the second sealing surface 22, i.e., the first side wall 13 connects the first end wall 12 and the second end wall 23 to each other, and one end of the first side wall 13 away from the first end wall 12 is connected directly or indirectly to the second sealing surface 22, thereby understanding that the connection surface between the first side wall 13 and the second housing 20 is located on the second sealing surface 22 and does not protrude from the outer contours of the first housing 10 and the second housing 20 in the second direction y.

[0180] A first sealing surface 11 is provided on the first side wall 13 and is connected to a second sealing surface 22 on the second housing 20, for example, in some embodiments, the first sealing surface 11 on the first side wall 13 is connected to a second sealing surface 22 on the second side wall 24, or in other embodiments, the first sealing surface 11 on the first side wall 13 is connected to a second sealing surface 22 on the second end wall 23.

[0181] The first sealing surface 11 may be formed on the outer surface of the first side wall 13 or on the inner surface of the first side wall 13. For example, when the first side wall 13 is connected to the second side wall 24 and the second side wall 24 is closer to the sealed space 102 than the first side wall 13, the first sealing surface 11 is formed on the inner surface of the first side wall 13.

[0182] "At least a portion of the first side wall 13 is located on the side of the first end wall 120 adjacent to the first surface 21" is understood to mean that the first side wall 13 protrudes from the first end wall 120 along the direction from the first end wall 12 toward the second end wall 23.

[0183] Here, the first side wall 13 may be installed at the end of the first end wall 12 in the second direction y, for example, the first side wall 13 may be connected to the side surface of the first end wall 12 in the second direction y, or, for example, the first side wall 13 may be connected to the first end wall surface 120 and adjacent to the side surface of the first end wall 12 in the second direction y.

[0184] In some embodiments, when battery 100 is a prismatic battery 100, i.e., when first end wall 12 is a rectangular end wall, the number of first side walls 13 may be two, with first sealing surfaces 11 provided on each of the two side walls to sealingly engage with two second sealing surfaces 22 of second housing 20, respectively; or the number of first side walls 13 may be two, with one of the two first side walls 13 provided with a first sealing surface 11 to sealingly engage with one first sealing surface 11 of second housing 20; or the number of first side walls 13 may be one, with first side wall 13 connected to second end wall 23 or second side wall 24.

[0185] In the above solution, the first housing 10 has a simple structure and is easy to manufacture. The first housing 10 includes a first end wall 12 and a first side wall 13 that are connected to each other. At least a portion of the first side wall 13 is positioned adjacent to the first surface 21 of the first end wall 120. This allows the first housing 10 and the second housing 20 to enclose an enclosed space 102 for accommodating the battery cells 101. On the other hand, the first sealing surface 11 is formed on the first side wall 13, allowing the area of ​​the first sealing surface 11 to be relatively large, thereby forming a good connection and sealing relationship with the second sealing surface 22 and providing the battery 100 with relatively high reliability.

[0186] According to some embodiments of the present application, at least a portion of the first sidewall 13 is located on a side of the first surface 21 away from the battery cell 101 .

[0187] The phrase "at least a portion of the first side wall 13 is located on the side of the first surface 21 away from the battery cell 101" may be understood to mean that the end of the first side wall 13 can extend beyond the first surface 21 along the direction in which the first end wall 12 extends toward the second end wall 23, i.e., the first sealing surface 11 can extend beyond the first surface 21 as shown in FIG. 6 . In other words, in the second direction y, the projection of the first side wall 13 and the projection of the second end wall 23 at least partially overlap. In some embodiments, referring to FIG. 2 , the end of the first side wall 13 may be parallel to the lower surface of the second end wall 23.

[0188] In some embodiments, the height of the sealed space 102 in the battery 100 may be defined by the first end wall 12 and the second end wall 23, and in order to position the battery cell 101 within the sealed space, it is necessary to install an enclosing member, such as the first side wall 13 and the second side wall 24, between the first end wall 12 and the second end wall 23. As the main supporting component of the battery 100, the second housing 20 is manufactured using a material that is relatively dense and relatively costly. In order to reduce the mass and cost of the battery 100 as much as possible, the second side wall 24 of the second housing 20 may be eliminated, i.e., the first side wall 13 may be connected to the second end wall 23, or the second side wall 24 of the second housing 20 may be connected to the first side wall 13 as low as possible, provided that the first sealing surface 11 and the second sealing surface 22 have good sealing properties.

[0189] In the above solution, it can be understood that at least a portion of the first side wall 13 is located on the side of the first surface 21 away from the battery cell 101, and at least a portion of the first sealing surface 11 is located on the side of the first surface 21 away from the battery cell 101. On the one hand, the area of ​​the first sealing surface 11 can be made as large as possible, thereby forming good connection stability and sealing performance with the second sealing surface 22. On the other hand, when the first sealing surface 11 and the second sealing surface 22 are connected to each other by another connecting member, because the first surface 21 is the surface of the second end wall 23, the second end wall 23 can provide the connecting member with a larger connection size in the second direction y, thereby improving the locking strength of the connecting member to the first sealing surface 11 and the second sealing surface 22, reducing the risk of the first sealing surface 11 and the second sealing surface 22 separating from each other, and making the battery 100 have relatively high reliability.

[0190] According to some embodiments of the present application, referring to FIG. 7 , the second housing 20 further includes a third side wall 25 located at the end of the second end wall 23 in the first direction x, the third side wall 25 extending toward and connected to the first housing 10.

[0191] The third side wall 25 is a member installed at an end of the second end wall 23 in the first direction x. The third side wall 25 may be connected to the second end wall 23 by welding, adhesive bonding, bolting, or other methods, or the third side wall 25 may be integrally formed with the second end wall 23. The third side wall 25 improves the structural strength of the second end wall 23, enabling the second end wall 23 to stably support the battery cells 101. In some embodiments, the third side wall 25 may be used to attach components such as an explosion-proof valve, a water-cooling connector, or a high- or low-pressure plug.

[0192] In some embodiments, the third side wall 25 may be located on a side of the second end wall 23 in the first direction x, or the third side wall 25 may be located on the first surface 21 and adjacent to the side of the second end wall 23 in the first direction x.

[0193] In some embodiments, the battery 100 may be a prismatic battery 100, the first end wall 12 may be a rectangular end wall, the first direction x may be the longitudinal direction of the first end wall 12, and the second direction y may be the width direction of the first end wall 12. Referring to FIGS. 7 and 10 , the first housing 10 includes two first side walls 13, which are spaced apart to form an opening. The third side wall 25 can seal this opening. In some embodiments, the plurality of first side walls 13 and the plurality of third side walls 25 are arranged around the periphery of the sealed space 102.

[0194] The third side wall 25 may be connected to the first housing 10 by welding, adhesive, bolting or other methods.

[0195] In some embodiments, a portion of the third side wall 25 may be connected to the first end wall surface 120 of the first end wall 12, and another portion of the third side wall 25 may be connected to the first side wall 13. In some embodiments, a portion of the third side wall 25 may be connected to a side surface of the first end wall 12 in the first direction x, and another portion of the third side wall 25 may be connected to the first side wall 13. In some embodiments, a portion of the first housing 10 that corresponds to the third side wall 25 but is not part of the first end wall 12 or the first side wall 13 is provided and is correspondingly connected to the third side wall 25.

[0196] In the above solution, by installing a third side wall 25 at the end of the second end wall 23 in the first direction x, the second end wall 23 can be connected to the first housing 10 in the first direction x via the third side wall 25, thereby improving the connection stability between the first housing 10 and the second housing 20 and further improving the reliability of the battery 100.

[0197] 11 is a three-dimensional view of a battery 100 according to some other embodiments of the present application. In some other embodiments, the second housing 20 may not have a third side wall 25, and the first housing 10 may have a third side wall 25. That is, one end of the third side wall 25 is connected to the first end wall 12, and the other end of the third side wall 25 is connected to the second housing 20. For example, the other end of the third side wall 25 is connected to the second end wall 23 or to another member attached to the second end wall 23. The above design can effectively reduce the mass and cost of the battery 100 when the second housing 20 uses a material with a relatively high density and a relatively high cost.

[0198] According to some embodiments of the present application, referring to Figures 12 and 13, Figure 12 is a schematic diagram of the local structure of the second housing 20 in some embodiments of the present application, and Figure 13 is a schematic diagram of the local structure of the first housing 10 in some embodiments of the present application.

[0199] The third side wall 25 includes a first flat surface 250 facing away from the first surface 21 and a second flat surface 251 positioned intersecting the second direction y, the first flat surface 250 being used to form a sealing connection with the first end wall 12 and the second flat surface 251 being used to form a sealing connection with the first side wall 13.

[0200] The first flat surface 250 is a flat surface located on the third side wall 25. In some embodiments, the first flat surface 250 is a surface of the third side wall 25 facing the first end wall 12 along the third direction z. The first flat surface 250 is sealingly connected to the first end wall 12. For example, the first flat surface 250 is in surface contact with the first end wall surface 120, and the two are in close contact. The first flat surface 250 may be connected to the first end wall 12 by welding, adhesive bonding, bolting, or other methods. In some embodiments, the first flat surface 250 may be connected to the first end wall 12 by another member. For example, referring to FIG. 13 , a connecting portion 17 is provided on the first end wall 12. The connecting portion has a sheet shape, and a portion of the connecting portion 17 is connected to the first flat surface 250.

[0201] The second flat surface 251 is a flat surface located on the third side wall 25 and intersects with the first flat surface 250. In some embodiments, the second flat surface 251 is a surface of the third side wall 25 facing the first side wall 13 along the second direction y. The second flat surface 251 is sealingly connected to the first side wall 13, for example, the second flat surface 251 and the first side wall 13 are fitted together so that they are in close contact with each other. The second flat surface 251 may be connected to the first side wall 13 by welding, adhesive bonding, bolting, or other methods. In some embodiments, the second flat surface 251 may be connected to the first side wall 13 by other members. For example, referring to FIG. 13 , a connecting portion 17 is provided on the first side wall 13, the connecting portion 17 is sheet-shaped, and a portion of the connecting portion 17 is connected to the second flat surface 251.

[0202] In the above solution, the third side wall 25 is connected to the first housing 10 via the first flat surface 250 and the second flat surface 251, which can effectively improve the connection stability and sealing performance between the first housing 10 and the second housing 20, and provide the battery 100 with relatively high reliability. Here, the second flat surface 251 is disposed intersecting the second direction y and is used to form a sealing connection with the first side wall 13, which can effectively improve the space utilization rate of the battery 100 in the second direction y, thereby allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100.

[0203] According to some embodiments of the present application, referring to FIG. 3 , the battery 100 further includes a second sealing member 40, which is disposed between the third side wall 25 and the first housing 10.

[0204] The second sealing member 40 may be a member that has sealing properties and is disposed between the third side wall 25 and the first housing 10. In some embodiments, the second sealing member 40 may be a sealant or gasket, and the second sealing member 40 is sandwiched between the third side wall 25 and the first housing 10.

[0205] In some embodiments, the second sealing member 40 may be a flat plate-like member, and the third side wall 25 and the first housing 10 are both in close contact with the second sealing member 40 and deform the second sealing member 40 to fill the uneven gap between the first housing 10 and the third side wall 25.

[0206] In some embodiments, the second seal member 40 may be connected to the first housing 10 and the third side wall 25 by abutment, crimping, adhesive, or other connecting methods using connecting members (e.g., screw members). For example, the elasticity of the materials of the first housing 10 and the second housing 20 themselves may cause them to press or abut against each other, thereby clamping the second seal member 40 between the first housing 10 and the third side wall 25. For example, the first housing 10 and the second housing 20 may be connected by a bolt, thereby clamping the second seal member 40 between the third side wall 25 and the first housing 10.

[0207] In the above solution, by installing the second sealing member 40 between the third side wall 25 and the first housing 10, the sealing property between the third side wall 25 and the first housing 10 can be effectively improved, and the battery 100 has relatively high reliability.

[0208] According to some embodiments of the present application, referring to FIG. 12 , the first flat surface 250 and the second flat surface 251 are connected via a transition surface 252, and the transition surface 252 includes a sloped surface and / or an arcuate surface. A mating surface 170 is formed at the connection point between the first end wall 12 and the first side wall 13, and the mating surface 170 is positioned corresponding to the transition surface 252.

[0209] The transition surface 252 is a portion that connects the first flat surface 250 and the second flat surface 251, and by installing the transition surface 252, a smooth transition can be made between the first flat surface 250 and the second flat surface 251.

[0210] 12, transition surface 252 includes two sloped surfaces and an arcuate surface located between the two sloped surfaces, one of which is connected to first flat surface 250 and the other of which is connected to second flat surface 251. In other embodiments, transition surface 252 may include a sloped surface. In other embodiments, transition surface 252 may include an arcuate surface, for example, first flat surface 250 and second flat surface 251 are connected by an arcuate surface.

[0211] The mating surface 170 is used to mate with the transition surface 252. The mating surface 170 and the transition surface 252 mate with each other, thereby providing a good seal between the third side wall 25 and the first housing 10. In some embodiments, the mating surface 170 may include a sloped surface and an arcuate surface. For example, in FIG. 12 , the transition surface 252 includes two arcuate surfaces 2521 and a sloped surface 2520 located between the two arcuate surfaces 2521, one of which is connected to the first flat surface 250 and the other of which is connected to the second flat surface 251. Alternatively, in some embodiments, a connection portion 17 is provided on the first housing 10, and the connection portion 17 is connected to the first end wall 12 and the second side wall 24, with a portion of the connection portion 17 mating with the first flat surface 250 and a remaining portion of the connection portion 17 forming the mating surface 170 mating with the transition surface 252.

[0212] In the above solution, the provision of the transition surface 252 allows for a gradual transition between the first flat surface 250 and the second flat surface 251, which is advantageous for the second sealing member 40 to be in close contact with the surface where the third side wall 25 and the first housing 10 are connected to each other, and also reduces the risk of the second sealing member 40 being damaged by interference at the corner between the first flat surface 250 and the second flat surface 251, resulting in failure of the sealing member, and thus provides the battery 100 with relatively high reliability.

[0213] 14, according to some embodiments of the present application, Fig. 14 is a top view of the second seal member 40 in some embodiments of the present application. The second seal member 40 includes a first sub-seal member 41, a second sub-seal member 42, and a third sub-seal member 43, where the first sub-seal member 41 is disposed between the first flat surface 250 and the first end wall 12, the second sub-seal member 42 is disposed between the second flat surface 251 and the first side wall 13, and the third sub-seal member 43 is disposed between the transition surface 252 and the mating surface 170.

[0214] The first sub-seal member 41 is disposed corresponding to the first flat surface 250, and in some embodiments, the first sub-seal member 41 is sandwiched and deformed by the first flat surface 250 and the first end wall 12. The second sub-seal member 42 is disposed corresponding to the second flat surface 251, and in some embodiments, the second sub-seal member 42 is sandwiched and deformed by the second flat surface 251 and the first side wall 13. The third sub-seal member 43 corresponds to the transition surface 252; for example, referring to FIGS. 12 and 14 , the third sub-seal member 43 includes a portion corresponding to the inclined surface and a portion corresponding to the arcuate surface, and in some embodiments, the third sub-seal member 43 is sandwiched and deformed by the transition surface 252 and the mating surface 170.

[0215] In the above solution, the second sealing member 40 is configured as the first sub-sealing member 41, the second sub-sealing member 42, and the third sub-sealing member 43, and the first sub-sealing member 41, the second sub-sealing member 42, and the third sub-sealing member 43 are respectively disposed between the first flat surface 250 and the first end wall 12, between the second flat surface 251 and the first side wall 13, and between the transition surface 252 and the mating surface. This allows the second sealing member 40 to be tightly attached to the surface where the third side wall 25 and the first housing 10 are connected to each other, improving the sealing performance between the first housing 10 and the second housing 20 and further imparting relatively high reliability to the battery 100.

[0216] According to some other embodiments of the present application, referring to Figures 15 and 16, Figure 15 is a schematic diagram of the local structure of the first housing 10 in some other embodiments of the present application, and Figure 16 is a schematic diagram of the local structure of the second housing 20 in some other embodiments of the present application.

[0217] The first housing 10 further includes a fourth side wall 14 adjacent to the first side wall 13. One end of the fourth side wall 14 is connected to the first end wall 12, and the third side wall 25 is connected to the fourth side wall 14.

[0218] The fourth side wall 14 is a member that protrudes from the first end wall surface 120 and is adjacent to the first side wall 13. The fourth side wall 14 may be connected to the first end wall 12 by welding, adhesive, or bolts, or may be integrally formed with the first end wall 12. When the first housing 10 has two first side walls 13 that are installed opposite each other along the second direction y, the fourth side wall 14 is located between the two first side walls 13, and one end of the fourth side wall 14 is connected to the first end wall 12, and opposite ends of the fourth side wall 14 in the second direction y are connected to the two first side walls 13, respectively.

[0219] In some embodiments, the fourth side wall 14 has a portion for connecting with the first flat surface 250 of the third side wall 25, a portion for connecting with the second flat surface 251, and a mating surface for connecting with the transition surface 252. In some embodiments, referring to FIGS. 12-16 , by providing the fourth side wall 14, the size of the third side wall 25 in the third direction z can be reduced, i.e., the larger the size of the fourth side wall 14 in the third direction z, the smaller the size of the third side wall 25 in the first direction x can be.

[0220] In some embodiments, the first housing 10 may be an upper housing, and the second housing 20 may be a lower housing, and the material cost and density of the upper housing may both be lower than those of the lower housing. Therefore, by installing the fourth side wall 14, the proportion of the first housing 10 in the battery 100 is improved, which further effectively reduces the manufacturing cost of the battery 100 and improves the weight energy density of the battery 100.

[0221] In some other embodiments, refer to Fig. 17. Fig. 17 is a schematic diagram of a second housing 20 in some other embodiments of the present application. The size of one of the third side walls 25 in the third direction z is smaller than the size of the other of the third side walls 25 in the third direction z.

[0222] The size of the third side wall 25 in the third direction z can be considered the height of the third side wall 25. Because the heights of the two third side walls 25 are different, the resulting height difference can be compensated for by the first housing 10. Components such as an explosion-proof valve, a water-cooling connection member, or a high-low crimp plug can be attached to the relatively large third side wall 25. By reducing the size of the other third side wall 25, the size of the portion of the first housing 10 corresponding to the third side wall 25 can be adaptively increased, for example, by installing or increasing the size of the fourth side wall 14, thereby increasing the proportion of the first housing 10 in the battery 100, further reducing the manufacturing cost of the battery 100, and improving the weight energy density of the battery 100.

[0223] According to some embodiments of the present application, and referring to FIG. 6 , the battery 100 further includes a first fastening member 50 that is drilled into the first sealing interface 103 along the second direction y and locked within the second end wall 23.

[0224] The first fastening member 50 is a member capable of connecting the first housing 10 and the second housing 20. In some embodiments, one end of the first fastening member 50 may pass through the first sealing surface 11 and the second sealing surface 22 along the second direction y and be locked inside the second end wall 23. For example, with reference to FIGS. 3 and 6 , one end of the first fastening member 50 may pass through the first side wall 13 and the first sealing member 30 and be locked inside the second end wall 23. The first fastening member 50 may be a connecting member having an external thread, such as a bolt or screw. The first fastening member 50 may also be a connecting member such as a pin or a rivet.

[0225] In some embodiments, the first fastening member 50 is a bolt, and a through hole is provided in each of the first side wall 13 and the first seal member 30, and a threaded hole is formed in the second end wall 23, and the bolt can pass through the through hole on the first side wall 13 and the first seal member 30 and lock into the threaded hole.

[0226] Here, in some embodiments, the first fastening member 50 may not be locked to the second end wall 23 , and the first fastening member 50 may be locked to the second side wall 24 .

[0227] In the above solution, the second end wall 23 can provide a relatively deep locking depth for the first fastening member 50 in the second direction y. The first fastening member 50 is installed to penetrate the first sealing interface 103 and be locked within the second end wall 23, which effectively improves the connection stability between the first housing 10 and the second housing 20, thereby improving the structural stability of the battery 100 and making the battery 100 more reliable.

[0228] According to some embodiments of the present application, referring to FIG. 6, the portion where the first fastening member 50 is locked to the second end wall 23 is located on the side of the first surface 21 away from the sealed space 102.

[0229] As shown in FIG. 6, when the upper side of the first surface 21 is the sealed space 102 , the lower side of the first surface 21 may be understood as the side of the first surface 21 away from the sealed space 102 .

[0230] The portion of the first fastening member 50 that is locked into the second end wall 23 is located on the side of the first surface 21 that is away from the sealed space 102, and as can be understood, the second end wall 23 can provide a relatively deep locking depth for the first fastening member 50, for example, in the third direction z, the projected portion of the first fastening member 50 may fall into the projection of the first surface 21.

[0231] 18 is a schematic diagram of a first fastening member 50 and a first surface 21 in some other embodiments of the present application. The portion of the first fastening member 50 that is locked to the second end wall 23 may be located on a side of the first surface 21 that is closer to the sealed space 102. In this embodiment, the first surface 21 is recessed into the second end wall 23 than the edge of the second end wall 23, and the first fastening member 50 may be locked to the edge of the second end wall 23 and be located on a side of the first surface 21 that is closer to the sealed space 102.

[0232] In the above solution, the portion of the first fastening member 50 that is locked to the second end wall 23 is positioned on the side of the first surface 21 that is away from the sealed space 102. This prevents the first fastening member 50 from occupying the sealed space 102, improving the utilization rate of the sealed space 102 and the volumetric energy density of the battery 100, and also reduces the risk of the first fastening member 50 interfering with the battery cell 101. On the other hand, the second end wall 23 provides the first fastening member 50 with a relatively deep locking depth, thereby firmly locking the first fastening member 50 to the second end wall 23, improving the connection stability between the first housing 10 and the second housing 20 and providing the battery 100 with relatively high reliability.

[0233] According to some embodiments of the present application, referring to FIG. 6, along a direction perpendicular to the first surface 21, the projection of the first fastening member 50 and the projection of the battery cell 101 at least partially overlap.

[0234] "Along the direction perpendicular to the first surface 21, the projection of the first fastening member 50 and the projection of the battery cell 101 at least partially overlap" may be understood to mean that the depth to which the first fastening member 50 is locked to the second end wall 23 is relatively deep, i.e., the first fastening member 50 extends along its locking direction, for example, extends along the second direction y, and the projection in the third direction z of the portion extending into the second end wall 23 at least partially overlaps with the projection of the battery cell 101 located in the sealed space 102.

[0235] In the above solution, the projection of the first fastening member 50 and the projection of the battery cell 101 projected along a direction perpendicular to the first surface 21 at least partially overlap, so that the second end wall 23 provides a relatively deep locking depth for the first fastening member 50, thereby enabling the first fastening member 50 to be firmly locked to the second end wall 23, improving the connection stability between the first housing 10 and the second housing 20 and providing the battery 100 with relatively high reliability.

[0236] According to some embodiments of the present application, referring to Figures 3 and 7, the second housing 20 further includes a third side wall 25 installed at the end of the second end wall 23 in the first direction x, and the battery 100 further includes a second fastening member 51 (see Figure 12), which is used to connect the third side wall 25 and the first housing 10, and the second fastening member 51 is locked inside the third side wall 25.

[0237] The second fastening member 51 is a member that can connect the first housing 10 and the third side wall 25. In some embodiments, one end of the second fastening member 51 may pass through the first housing 10 and be locked inside the third side wall 25.

[0238] The second fastening member 51 may be a connecting member having an external thread, such as a bolt screw, etc. The second fastening member 51 may also be a connecting member such as a pin or a rivet.

[0239] In some embodiments, the second fastening member 51 is a bolt, and a through hole is provided in each of the first housing 10 and the second sealing member 40, and a threaded hole is formed in the third side wall 25, and the bolt can pass through the through holes on the first housing 10 and the second sealing member 40 and lock into the threaded hole in the third side wall 25.

[0240] 12, screw holes may be provided in the flat surfaces so that bolts can connect the first housing 10 and the third side wall 25. In FIG. 12, screw holes are provided in the first flat surface 250, the second flat surface 251, and the sloped surface of the transition surface 252, respectively.

[0241] In the above solution, a third side wall 25 is installed at the end of the second end wall 23 in the first direction x, and the third side wall 25 is connected to the first housing 10 by a second fastening member, thereby achieving a stable connection relationship between the third side wall 25 and the first housing 10, thereby improving the connection stability between the first housing 10 and the second housing 20 and further improving the reliability of the battery 100.

[0242] According to some embodiments of the present application, reference is made to FIG. 19, which is a schematic diagram of a specific structure of a battery 100 according to some other embodiments of the present application.

[0243] A first sealing member 30 is installed between the first sealing surface 11 and the second sealing surface 22, and along the width direction of the first sealing member 30, one end of the first sealing member 30 is close to the sealed space 102 and the other end of the first sealing member 30 is close to the outside of the battery 100, and the width direction of the first sealing member 30 is parallel to the first surface 21.

[0244] The width direction, the longitudinal direction, and the thickness direction of the first seal member 30 are perpendicular to each other, two by two, of the first seal member 30. Here, the thickness direction of the first seal member 30 may be the arrangement direction of the first seal surface 11 and the second seal surface 22, and for example, the thickness direction of the first seal member 30 may be the second direction y.

[0245] In some embodiments, the longitudinal direction of the first seal member 30 may be a direction intersecting the first surface 21, for example, the longitudinal direction of the first seal member 30 may be the third direction z, and the width direction of the first seal member 30 may be a direction parallel to the first surface 21, for example, the first direction x. For example, referring to FIG. 19 , the second housing 20 may be an enclosure 26, an end of the enclosure 26 in the first direction x has an opening, the first housing 10 is pressed into the second housing 20 along the first direction x to seal the opening, the first sealing surface 11 is perpendicular to the first surface 21, and the first sealing surface 11 is parallel to the first direction x and perpendicular to the second direction y, and at this time, the width direction of the first seal member 30 may be parallel to the first direction x, i.e., parallel to the first surface 21.

[0246] In the above solution, the width direction of the first sealing member 30 is set parallel to the first surface 21, for example, by making the width direction of the first sealing member 30 parallel to the first direction x, so that the first sealing member 30 can perform a good sealing function, and the space occupied by the thickness of the first sealing member 30 in the second direction y is reduced, thereby improving the space utilization rate of the battery 100 in the second direction y, allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100.

[0247] According to some embodiments of the present application, referring to FIG. 19 , the second housing 20 includes a shroud 26 having an opening formed along the first direction x, and the first housing 10 includes a blocking plate 15 that is at least partially pressed into the shroud 26 along the first direction x to seal the opening.

[0248] In some embodiments, the enclosure 26 may indicate that the second housing 20 has a cavity therein, and that this cavity is surrounded by the walls of the second housing 20. Referring to Figure 19, the enclosure 26 may be a cube having a cavity therein, with an opening formed at an end of the enclosure 26 in the first direction x, and this opening communicating with the interior of the enclosure 26.

[0249] The first housing 10 may include a blocking plate 15, which is connected to the enclosure 26 and is used to seal the opening so that the battery cell 101 is located inside the enclosure 26, i.e., within the sealed space 102.

[0250] "At least a portion of the blocking plate 15 is pushed into the enclosure 26 along the first direction x" may be understood to mean that the blocking plate 15 can be pushed into the enclosure 26 to seal the opening, for example, that the outer contour of the blocking plate 15 corresponds to the opening, the blocking plate 15 is fitted into the opening to seal the opening, and a portion of the blocking plate 15 is pushed into the enclosure 26 to be connected to the enclosure 26 and seal the opening.

[0251] In the above solution, the second housing 20 may include a housing 26, which may have an opening at its end in the first direction x, and the battery cells 101 may be placed in the housing 26 through the opening. The first housing 10 may include a closing plate 15, which may be pressed into the housing 26 along the first direction x to seal the opening, thereby not occupying extra space in the second direction y, i.e., the maximum size of the outer contour of the battery 100 may be the maximum size of the outer contour of the housing 26, such that the battery 100 has a higher space utilization rate, accommodates more battery cells 101, or a smaller volume, and has a higher volumetric energy density.

[0252] According to some other embodiments of the present application, referring to Fig. 20, Fig. 20 is a schematic diagram of a first housing 10 in some other embodiments of the present application. The first housing 10 further includes an elongated wall plate 16, at least a portion of the first sealing surface 11 is attached to the elongated wall plate 16, the elongated wall plate 16 is attached to an end of the closing plate 15 in the second direction y, and the closing plate 15 has a cover surface facing the battery cells 101. When projected along the second direction y, at least a portion of the projection of the elongated wall plate 16 is located on the side of the cover surface closest to the battery cells 101.

[0253] The closing plate 15 may be a member for sealing the opening of the enclosure frame 26 of the first housing 10. The surface of the closing plate 15 facing the sealed space 102 is a lid surface.

[0254] The extending wall plate 16 is a member attached to the closing plate 15. In some embodiments, the extending wall plate 16 is attached to a side surface of the closing plate 15 in the second direction y, or the extending wall plate 16 is attached to a cover surface of the closing plate 15 and adjacent to a side surface of the closing plate 15 in the second direction y, or the extending wall plate 16 is connected to the closing plate 15 and adjacent to a side surface of the closing plate 15 in the second direction y.

[0255] In some embodiments, the first housing 10 is pushed into the opening of the shroud 26 along the first direction x, the closing plate 15 seals the opening of the shroud 26, and the extending wall plate 16 passes through the opening and is connected to the shroud 26. Alternatively, the first housing 10 is pushed into the opening of the shroud 26 along the first direction x, the closing plate 15 seals the opening of the shroud 26, and the extending wall plate 16 is connected to the shroud 26.

[0256] The phrase "at least a portion of the first sealing surface 11 is provided on the extended wall plate 16" may be understood to mean that at least a portion of the first sealing surface 11 is formed on the extended wall plate 16 and connected to the second sealing surface 22 of the second housing 20. In some embodiments, referring to FIG. 20 , two extended wall plates 16 may be provided on the closing plate 15, and the two extended wall plates 16 may be spaced apart along the second direction y and connected to the enclosure 26, respectively. The two extended wall plates 16 have two surfaces that are spaced apart from each other in the second direction y, and these two surfaces that are spaced apart from each other can form the first sealing surface 11, respectively.

[0257] At least a portion of the first sealing surface 11 may be formed on the outer surface of the elongated wall panel 16, and the first sealing surface 11 may be connected to the inner wall surface of the enclosure 26. At least a portion of the first sealing surface 11 may be formed on the inner surface of the elongated wall panel 16, and the first sealing surface 11 may be connected to the outer wall surface of the enclosure 26.

[0258] In some embodiments, a portion of the first sealing surface 11 may be located on the extending wall plate 16 and another portion of the first sealing surface 11 may be located on the closing plate 15 .

[0259] 19, a ring-shaped extension wall may be provided on the cover surface of the closing plate 15, and the extension wall may have a first sealing surface 11 in the second direction y. In some embodiments, the first sealing surface 11 may be formed on the outer surface of the extension wall, and the extension wall may be fitted into the opening, with the outer surface of the extension wall connected to the hole wall of the opening. The hole wall of the opening may be the inner wall surface of the enclosure 26.

[0260] In the above solution, on the one hand, by installing the extended wall panel 16, the area of ​​the first sealing surface 11 can be set as large as possible, thereby effectively connecting the first sealing surface 11 with the second sealing surface 22 of the second housing 20, thereby improving the connection stability between the first housing 10 and the second housing 20 and improving the reliability of the battery 100; on the other hand, at least a part of the projection of the extended wall panel 16 in the second direction y is set to be located on the side of the cover surface close to the battery cells 101, which prevents the extended wall panel 16 from protruding and increasing the size of the entire battery 100 in the first direction x, thereby improving the space utilization rate of the battery 100 in the first direction x, allowing more battery cells 101 or a smaller volume to be accommodated, and giving the battery 100 a relatively high volumetric energy density.

[0261] According to some embodiments of the present application, along the second direction y, at least a part of the projection of the first seal member 30 is located on the side of the lid surface that is close to the battery cell 101 .

[0262] The "side of the cover surface close to the battery cell 101" may be understood as the inside of the cover surface, and the side of the cover surface away from the battery cell 101 may be understood as the outside of the cover surface.

[0263] "Along the second direction y, at least a portion of the projection of the first sealing member 30 is located on the side of the cover surface closest to the battery cell 101" may be understood to mean that a portion of the first sealing member 30 may be located within the sealed space 102.

[0264] In the above solution, at least a portion of the projection of the first sealing member 30 along the second direction y is positioned on the side of the cover surface closest to the battery cells 101, which, on the one hand, improves the sealing performance between the extended wall panel 16 and the second housing 20; on the other hand, by locating a portion of the first sealing member 30 within the sealed space 102, the first sealing member 30 minimizes the space occupied by the battery 100 outside the first direction x, thereby improving the space utilization rate of the battery 100 in the first direction x, allowing it to accommodate more battery cells 101 or a smaller volume, and giving the battery 100 a relatively high volumetric energy density.

[0265] According to some embodiments of the present application, along the second direction y, the projection of the first seal member 30 and the projection of the battery cell 101 at least partially overlap.

[0266] In some embodiments, the first sealing surface 11 may extend into the sealed space 102, and along the second direction y, the projections of the first sealing surface 11 and the second sealing surface 22 may at least partially overlap with the projections of the battery cells 101, thereby causing the first housing 10 and the second housing 20 to have a relatively large connection area and sealing area. Correspondingly, the first sealing member 30 located between the first sealing surface 11 and the second sealing surface 22 also has a relatively large area.

[0267] In the above solution, the projection of the first sealing member 30 in the second direction y is set to at least partially overlap with the projection of the battery cell 101, so that the first sealing member 30 occupies as little space as possible in the first direction x, thereby improving the space utilization rate of the battery 100 in the first direction x, allowing it to accommodate more battery cells 101 or a smaller volume, and giving the battery 100 a relatively high volumetric energy density.

[0268] According to some embodiments of the present application, the second sealing surface 22 is located on the inner wall surface of the enclosure 26 , and at least a portion of the first sealing surface 11 is located on the outer wall surface of the closing plate 15 .

[0269] In some embodiments, for example as shown in FIG. 19, the outer contour size of the blocking plate 15 may be smaller than the outer contour size of the enclosure 26, and the blocking plate 15 may be fitted into the opening, and in some of these embodiments, the first sealing surface 11 may be installed on the outer wall surface of the blocking plate 15, and the second sealing surface 22 may be installed on the inner wall surface of the enclosure 26.

[0270] In some other embodiments, the outer contour of the first housing 10 may be larger than the outer contour of the enclosure 26, and the first housing 10 may be fitted into the enclosure 26, and in these embodiments, the second sealing surface 22 may be located on the outer wall surface of the enclosure 26.

[0271] In the above solution, the first sealing surface 11 can be installed on the outer wall surface of the blocking plate 15 and connected to the inner wall surface of the enclosure 26, eliminating the need to install an additional connecting wall, making the processing of the housing easier and saving processing costs.

[0272] According to some embodiments of the present application, referring to FIG. 20 , the battery 100 further includes a first connecting member 52, which is drilled into the first sealing interface 103 along the second direction y and locked to the closing plate 15.

[0273] The first connecting member 52 is a member capable of connecting the first housing 10 and the second housing 20. In some embodiments, one end of the first connecting member 52 may pass through the first sealing surface 11 and the second sealing surface 22 along the second direction y and be locked inside the second end wall 23. One end of the first connecting member 52 may pass through the wall of the second housing 20 and the first sealing member 30 and be locked inside the closing plate 15. The first connecting member 52 may be a connecting member having an external thread, such as a bolt or screw. The first connecting member 52 may also be a connecting member such as a pin or a rivet.

[0274] In some embodiments, the first connecting member 52 is a bolt, and through holes are provided in the wall of the first housing 10 and the first sealing member 30, respectively, and a screw hole is formed in the closing plate 15, so that the bolt can pass through the through holes on the wall of the first housing 10 and the first sealing member 30 and lock into the screw hole in the closing plate 15.

[0275] Here, in some embodiments, the first connecting member 52 may not be locked to the closing plate 15 , and the first connecting member 52 may be locked to the extending wall plate 16 .

[0276] In the above solution, by installing the first connecting member 52 to connect the blocking plate 15 and the enclosure frame 26, the connection stability between the blocking plate 15 and the enclosure frame 26 can be improved, thereby improving the structural stability of the battery 100 and giving the battery 100 relatively high reliability.

[0277] According to some embodiments of the present application, the projection of the first connection member 52 and the projection of the battery cell 101 at least partially overlap along the first direction x.

[0278] The first direction x is a pushing direction along the closing plate 15. The first direction x may be a locking direction perpendicular to the first connecting member 52.

[0279] The phrase "the projection of the first connecting member 52 and the projection of the battery cell 101 at least partially overlap along the first direction x" may be understood to mean that the depth to which the first connecting member 52 is locked to the closing plate 15 is relatively deep, i.e., the first connecting member 52 extends along the locking direction, for example, extends along the second direction y, and the projection in the first direction x of the portion extending into the closing plate 15 at least partially overlaps with the projection of the battery cell 101 located in the sealed space 102.

[0280] In the above solution, the projection of the first connecting member 52 and the projection of the battery cell 101 at least partially overlap along the first direction x, so that the closing plate 15 provides a relatively deep locking depth for the first connecting member 52, enabling the first connecting member 52 to be firmly locked to the closing plate 15, improving the connection stability between the closing plate 15 and the second housing 20, and providing the battery 100 with relatively high reliability.

[0281] 21, according to some embodiments of the present application, Fig. 21 is a schematic diagram of a battery pack 60 in some embodiments of the present application. A battery 100 includes at least one battery pack 60 including a plurality of battery cells 101 arranged in groups. A binding member 70 is installed in the battery pack 60, and the binding member 70 is used to bind the plurality of battery cells 101 arranged in groups.

[0282] The battery pack 60 may include a plurality of battery cells 101 arranged in groups, for example, the plurality of battery cells 101 are stacked along the thickness direction of the battery cells 101. A binding member 70 may be installed in the battery pack 60, and the binding member 70 is used to constrain the plurality of battery cells 101 arranged in groups, thereby forming the plurality of battery cells 101 into a single, relatively stable structure. In some embodiments, the binding member 70 may be a ring-shaped structure that can be fitted around the outer periphery of the plurality of battery cells 101. In other embodiments, the binding member 70 may be a string-like structure that is connected to constrain the plurality of battery cells 101.

[0283] In some embodiments, the battery pack 60 may include an end plate 80, a binding member 70, and a plurality of battery cells 101, where the plurality of battery cells 101 are stacked along the thickness direction of the battery cells 101, two end plates 80 are installed at both ends of the plurality of battery cells 101, and the binding member 70 binds the two end plates and the plurality of battery cells 101 together.

[0284] In some embodiments, the battery 100 includes at least one battery pack 60, such as a single battery pack 60 or multiple battery packs 60 housed in an enclosed space 102 within the battery 100. Multiple battery packs 60 may refer to two or more battery packs 60.

[0285] In the above solution, the plurality of battery cells 101 arranged in groups in the battery pack 60 are bound by the binding member 70 and arranged regularly in the sealed space 102, thereby improving the utilization rate of the sealed space 102 and further improving the energy density of the battery 100.

[0286] According to some embodiments of the present application, reference is made to FIG. 22, which is a schematic diagram of a first battery pack 61 and a second battery pack 62 in some embodiments of the present application.

[0287] The battery pack 60 includes a first battery pack 61 and a second battery pack 62 that are adjacently disposed along the second direction y. A first binding member 71 is disposed on the first battery pack 61, and a second binding member 72 is disposed on the second battery pack 62. A first portion 710 of the first binding member 71 is disposed on a side of the first battery pack 61 facing the second battery pack 62 along the second direction y, and a second portion 720 of the second binding member 72 is disposed on a side of the second battery pack 62 facing the first battery pack 61 along the second direction y. A projection of the first portion 710 and a projection of the second portion 720 are offset from each other along the second direction y, and a projection of the first portion 710 and a projection of the second portion 720 at least partially overlap each other along a direction perpendicular to the first surface 21.

[0288] The battery 100 includes a plurality of battery packs 60, and the plurality of battery packs 60 may be arranged in the second direction y. In some embodiments, projections of the binding members 70 corresponding to each battery pack 60 may be offset from one another along the second direction y, thereby offsetting the portions of the binding members 70 between two adjacent battery packs 60 in the second direction y and reducing the space occupied by the binding members 70 in the second direction y. In some embodiments, projections of the portions of the binding members 70 between two adjacent battery packs 60 may at least partially overlap in the third direction z (along the direction perpendicular to the first surface 21), i.e., the portions of the binding members 70 between two adjacent battery packs 60 in the third direction z may share some space, thereby reducing the space occupied by the binding members 70 in the second direction y.

[0289] In some embodiments, the first battery pack 61 and the second battery pack 62 may be understood as two battery packs 60 adjacent to each other in the second direction y among the plurality of battery packs 60 of the battery 100. For example, in FIG. 22 , the first battery pack 61 and the second battery pack 62 are arranged in the second direction y, and the first binding member 71 corresponding to the first battery pack 61 can restrain the plurality of battery cells 101 of the first battery pack 61, and the second binding member 72 corresponding to the second battery pack 62 can restrain the plurality of battery cells 101 of the second battery pack 62. The first portion 710 is a portion of the first binding member 71 that is located between the plurality of battery cells 101 of the first battery pack 61 and the second battery pack 62 in the second direction y. The second portion 720 is a portion of the second binding member 72 that is located between the plurality of battery cells 101 of the second battery pack 62 and the first battery pack 61 in the second direction y. In the second direction y, the projection of the first portion 710 and the projection of the second portion 720 may be offset, and in the third direction z, the projection of the first portion 710 and the projection of the second portion 720 may overlap each other.

[0290] In the above solution, the projection of the first part 710 along the second direction y and the projection of the second part 720 along the second direction y are offset from each other, and the projection of the first part 710 along the first direction x and the projection of the second part 720 along the first direction x are at least partially overlapped with each other, thereby effectively reducing the space occupied by the binding member 70 in the second direction y, improving the utilization rate of the multiple battery packs 60 in the sealed space 102, and further improving the volumetric energy density of the battery 100.

[0291] 23, according to some other embodiments of the present application, Fig. 23 is a schematic diagram of a binding member 70 and battery packs 60 in some other embodiments of the present application. There are a plurality of battery packs 60. The binding member 70 includes an outer frame 73 and a partition strip 74. The partition strip 74 is disposed inside the outer frame 73 and divides the inside of the outer frame 73 into a plurality of sub-spaces, and each battery pack 60 is disposed in one of the sub-spaces.

[0292] The battery pack 60 may include a plurality of battery cells 101 arranged in groups stacked in the thickness direction of the battery cells 101. In the battery 100, the number of battery packs 60 is plural, for example, two, three, four, or five.

[0293] The binding member 70 is used to restrain a plurality of battery cells 101 arranged in a group. In some embodiments, the binding member 70 is used to restrain a plurality of battery cells 101 arranged in a group, i.e., to restrain a plurality of battery packs 60. Referring to FIG. 23 , the binding member 70 can restrain three battery packs 60.

[0294] The binding member 70 may include an outer frame 73 and partition strips 74. A plurality of battery packs 60 are arranged in an array; for example, in FIG. 23 , three battery packs 60 are arranged in an array along the width direction of the battery cells 101, and the outer frame 73 is arranged along the outer periphery of the three battery packs 60. The partition strips 74 are arranged inside the outer frame 73 and connected to the inner wall of the outer frame 73, dividing the interior of the outer frame 73 into a plurality of sub-spaces; in FIG. 23 , there are two partition strips 74, and the two partition strips 74 divide the interior of the outer frame 73 into three sub-spaces, and the three battery packs 60 are arranged in the corresponding sub-spaces, respectively.

[0295] In some embodiments, the outer frame 73 and the divider strips 74 may be integrally formed. In some embodiments, the divider strips 74 may be connected to the outer frame 73 by adhesive, welding, or other connecting members.

[0296] In the above solution, the binding member 70 includes an outer frame 73 and partition strips 74, and the partition strips 74 divide the housing into multiple sub-spaces, so that one binding member 70 can bind multiple battery packs 60 at the same time, thereby reducing the occupation of the sealed space 102 by the binding member 70 and allowing the sealed space 102 to accommodate more battery cells 101, resulting in the battery 100 having a relatively high volumetric energy density.

[0297] 23 , according to some embodiments of the present application, the number of battery packs 60 is plural, and the plurality of battery packs 60 are arranged along the second direction y. The battery 100 further includes an end plate 80, which is connected to end faces of the plurality of battery packs 60 in the first direction x, and the binding member 70 is connected to the end plate 80.

[0298] In some embodiments, the battery pack 60 may include a plurality of battery cells 101 arranged in a group stacked in the thickness direction of the battery cells 101. In the battery 100, the number of battery packs 60 is plural, for example, two, three, four, or five. The plurality of battery packs 60 may be arranged side by side, for example, along the second direction y. In the stacking direction of the battery cells 101, an end plate 80 may be installed on the battery 100, and two end plates 80 may be installed at both ends of the plurality of battery packs 60 in the stacking direction.

[0299] In some embodiments, the size of the end plate in the parallel direction of the plurality of battery packs 60 may be equal to or greater than the size of the plurality of battery packs 60 in the parallel direction, and the end plate may cover the plurality of battery packs 60, thereby being understood to fasten and restrain the plurality of battery packs 60 together using the binding member 70.

[0300] 23 , a groove may be provided in the wall of the end plate 80, and a portion of the binding member 70 may be provided in the groove. In some embodiments, each battery pack 60 corresponds to one binding member 70, and a portion of the binding member 70 may be provided in the groove to hold the battery pack 60 and the end plate together. In some embodiments, multiple battery packs 60 correspond to one binding member 70, and a partition strip 74 of the binding member 70 may be provided in the groove to hold the battery packs 60 and the end plate together.

[0301] In the above solution, the plurality of battery packs 60 are arranged and installed along the second direction y, and an end plate 80 is installed at one end of the plurality of battery packs 60 in the first direction x, and connected to the end plate 80 by a binding member 70, so that the plurality of battery packs 60 can be effectively integrated into one, the layout of the plurality of battery packs 60 can be made compact, the utilization rate of the enclosed space 102 can be improved, and the battery 100 has a relatively high volumetric energy density.

[0302] According to some embodiments of the present application, reference is made to FIG. 24, which is a schematic diagram of a battery pack 60 and a second side wall 24 in some embodiments of the present application.

[0303] The second housing 20 includes a second end wall 23 and a second side wall 24, the first surface 21 being located on the second end wall 23, the second sealing surface 22 being located on the second side wall 24, and the second side wall 24 being connected to an end of the second end wall 23 in the second direction y. The battery pack 60 includes a side battery pack 63 located adjacent to the second side wall 24 in the second direction y, and the binding member 70 includes a side portion 75 that is located on a side of the side battery pack 63 facing the second side wall 24 in the second direction y, and the second side wall 24 being located on the side of the side portion 75 that is closest to the first surface 21.

[0304] The second end wall 23 may be a main portion of the second housing 20, and has a first surface 21 for supporting the battery 100. In some embodiments, the first surface 21 is a surface of the second end wall 23 along the third direction z, and the first surface 21 is disposed toward the first housing 10. Here, in some embodiments, the second end wall 23 may have a plate-like structure, and the first surface 21 is one surface of the second end wall 23 in the third direction z. For example, the first surface 21 is the upper surface of the second end wall 23, and the lower surface of the second end wall 23 is the surface away from the sealed space 102. In some other embodiments, the lower surface of the first end wall 12 is defined as the surface of the second end wall 23 that is away from the sealed space 102, and the upper surface of the first end wall 12 is defined as the surface that is away from the lower surface of the first end wall 12. The first surface 21 may be a part of the upper surface of the second end wall 23; for example, a groove may be formed on the upper surface of the second end wall 23, and the first surface 21 may be the bottom surface of the groove. Alternatively, for example, a protrusion may be formed on the upper surface of the second end wall 23, and the first surface 21 may be the surface of the protrusion.

[0305] The second side wall 24 is a member provided at the end of the second end wall 23 in the second direction y. For example, the second side wall 24 may be provided on a side surface of the second end wall 23 in the second direction y, or, for example, the second side wall 24 may be provided on the upper surface of the second end wall 23 and adjacent to the side surface of the second end wall 23 in the second direction y. The second side wall 24 may be connected to the second end wall 23 by welding, adhesive bonding, bolt connection, or the like, or the second side wall 24 may be integrally formed with the second end wall 23.

[0306] In some embodiments, battery 100 may include one battery pack 60, where one battery pack 60 is located adjacent second side wall 24. Or, in some embodiments, battery 100 may include multiple battery packs 60, where the multiple battery packs 60 include one battery pack 60 adjacent second side wall 24 in second direction y, where this battery pack 60 may be an edge battery pack 63.

[0307] The multiple battery cells 101 in this edge-side battery pack 63 are restrained by a binding member 70, and the binding member 70 has an edge-side portion 75 located on one side of the multiple battery cells 101 in this edge-side battery pack 63, facing the second side wall 24. "The second side wall 24 is located on the side of the edge-side portion 75 that is close to the first surface 21" may be understood to mean that, in the third direction z, the second side wall 24 is located below the edge-side portion 75, or refers to the viewing angle direction of the first housing 10 along the first surface 21, and this viewing angle first passes through the second side wall 24 and then passes through the edge-side portion 75.

[0308] In the above solution, the side-side battery pack 63 is installed adjacent to the second side wall 24, and is constrained by both the binding member 70 and the second side wall 24 in the direction perpendicular to the first surface 21, thereby enabling the side-side battery pack 63 to be stably installed in the sealed space 102. Here, it may be understood that the second side wall 24 is located on the side of the side portion 75 closest to the first surface 21, allowing the size of the second side wall 24 in the direction perpendicular to the first surface 21 to be minimized, thereby enabling the side-side battery pack 63 to be stably installed in the sealed space 102 under the constraint of the binding member 70.

[0309] According to some embodiments of the present application, referring to FIG. 24, along the second direction y, the edge side portion 75 and the second side wall 24 are offset, and the projection of the edge side portion 75 and the projection of the second side wall 24 projected along a direction perpendicular to the first surface 21 at least partially overlap.

[0310] In the above solution, the projection of the edge side portion 75 in the second direction y and the projection of the second side wall 24 in the second direction y are offset from each other, and the projection of the edge side portion 75 in the direction perpendicular to the first surface 21 and the projection of the second side wall 24 in the direction perpendicular to the first surface 21 are at least partially overlapped, thereby effectively reducing the space occupied by the binding member 70 in the second direction y, improving the utilization rate of the multiple battery packs 60 in the sealed space 102, and further improving the volumetric energy density of the battery 100.

[0311] According to some embodiments of the present application, referring to FIG. 17 , the second housing 20 includes a second end wall 23, the first surface 21 is located on the second end wall 23, and the battery 100 further includes a plurality of mounting portions 90, all of which are located on the surface of the second end wall 23 opposite the first surface 21.

[0312] Mounting portion 90 is a member mounted on second end wall 23. Mounting portion 90 is used to mount battery 100 to a power consuming device. Mounting portion 90 may be a connecting structure, such as a nut or a connecting bracket, mounted on second end wall 23. In some embodiments, the number of mounting portions 90 may be multiple. In some embodiments, mounting portion 90 may be an M8, M10, M12, or M16 screw hole structure mounted on second end wall 23.

[0313] In the above solution, a plurality of mounting portions 90 are provided on the second end wall 23 to stably mount the battery 100 on the body of the power consuming device, thereby stably providing electrical energy to the power consuming device.

[0314] In some embodiments, the second housing 20 includes a second end wall 23, the first surface 21 is located on the second end wall 23, and a side beam 91 (shown in FIG. 17 ) is installed on the second end wall 23, which can improve the structural strength of the second end wall 23. The mount 90 may be installed on the side beam 91. For example, the mount 90 may be a screw hole structure installed on the side beam 91. A through hole corresponding to the mount 90 is provided in the second end wall 23, so that a mount member can be connected to the mount 90 located on the side beam via the through hole in the second end wall 23.

[0315] According to some embodiments of the present application, the projections of the plurality of mounting portions 90 along a direction perpendicular to the first surface 21 are located entirely within the projection range of the first surface 21 .

[0316] In the above solution, the projection of the mounting portion 90 along the direction perpendicular to the first surface 21 is set to be completely within the projection range of the first surface 21, so that the mounting portion 90 does not occupy any space other than the first surface 21, thereby making the structure of the battery 100 compact and providing a relatively high volumetric energy density.

[0317] According to some embodiments of the present application, the battery cells 101 are blade battery cells.

[0318] In some embodiments, a blade battery cell may be a battery cell 101 that is relatively thin in thickness and relatively long in length.

[0319] In some embodiments, one blade battery cell 101 may be housed within the enclosed space 102 of the battery 100 along the length of the blade battery cell.

[0320] In the above solution, the battery cells 101 in the battery 100 are configured as blade battery cells, so that the volumetric energy density of the battery 100 can be effectively improved.

[0321] According to some embodiments of the present application, there is further provided a power consuming device including a body and the battery 100 according to any one of the first aspects, wherein the battery 100 is used to supply electrical energy.

[0322] In the above solution, the power consumption device adopts the battery 100 having a relatively high energy density as provided above, and therefore has a relatively long driving range and can meet more power consumption demands.

[0323] According to some embodiments of the present application, the first sealing surface 11 and the second sealing surface 22 are parallel to a first direction x, and the first sealing surface 11 and the second sealing surface 22 intersect with a second direction y, both of which are parallel to the first surface 21.

[0324] In the above solution, by setting the first sealing interface 103 to intersect with the second direction y and the second direction y to be parallel to the first surface 21, it is possible to reduce the space occupied by the first sealing interface 103 in the second direction y while maintaining a good seal between the first sealing surface 11 and the second sealing surface 22, thereby improving the space utilization rate of the battery 100 in the second direction y, allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100. For example, by setting the first sealing interface to intersect with the second direction y, it is possible to achieve a sealed connection between the first housing 10 and the second housing 20 without installing a flange structure protruding along the second direction y, thereby improving the space utilization rate of the battery 100 in the second direction y, allowing more battery cells 101 to be accommodated or the volume of the battery 100 to be reduced, and further improving the volumetric energy density of the battery 100.

[0325] According to some embodiments of the present application, reference is made to FIG. 25, which is a schematic diagram of a power consuming device according to some embodiments of the present application.

[0326] The main body 1001 includes a truck body frame, which includes a cab 1002, a passenger compartment 1003, and a battery frame 1004 located between the cab 1002 and the passenger compartment 1003, and the battery frame 1004 is used to mount the battery 100, and the second direction y is the direction in which the cab 1002 faces the passenger compartment 1003.

[0327] The power consuming equipment may be a truck, and the truck may include a truck body frame and a battery 100. The truck body frame includes a cab 1002, a vehicle compartment 1003, and a battery frame 1004 located between the cab 1002 and the vehicle compartment. The battery frame 1004 may mount the battery 100, and the number of the battery 100 may be one or more.

[0328] In the above solution, the second direction y is the direction from the driver's cab 1002 to the passenger compartment 1003, so that this power consumption equipment adopts the battery 100 provided above to rationally utilize the space between the driver's cab 1002 and the passenger compartment 1003. By intersecting the first sealing interface 103 of the battery 100 with the first surface 21, the space occupied by the entire battery 100 along the second direction y can be reduced without affecting the sealing performance of the battery 100, and the passenger compartment 1003 can occupy more space in the second direction y, thereby carrying more cargo.

[0329] 26, according to some embodiments of the present application, Fig. 26 is a schematic diagram of a power consumption device in some embodiments of the present application. The main body 1001 includes a towing vehicle body frame, the towing vehicle body frame includes a cab 1002, a towing platform 1005, and a battery frame 1004 located between the cab 1002 and the towing platform 1005, the battery frame 1004 is used to mount the battery 100, and the second direction y is a direction in which the cab 1002 faces the towing platform 1005.

[0330] The power consuming equipment may be a towing vehicle, and the towing vehicle may include a towing vehicle body frame and a battery 100. The towing vehicle body frame includes a cab 1002, a towing platform 1005, and a battery frame 1004 located between the cab 1002 and the towing platform 1005. The battery frame 1004 may mount batteries 100, and the number of batteries 100 may be one or more. The towing platform 1005 may be used to tow the vehicle compartment.

[0331] In the above solution, the second direction y is the direction from the cab 1002 to the towing platform 1005. Therefore, this power consumption device can use the battery 100 provided above to rationally utilize the space between the cab 1002 and the towing platform 1005. By making the first sealing interface 103 of the battery 100 intersect with the first surface 21, the space occupied by the entire battery 100 in the second direction y can be reduced without affecting the sealing performance of the battery 100. Furthermore, the towing platform 1005 can be installed closer to the cab, so that more space in the second direction y of the body frame can be used to mount the vehicle cabin, thereby allowing more cargo to be carried, or the saved space in the second direction y can be used to improve the cruising capacity of the battery itself.

[0332] 27 and 28, according to some embodiments of the present application, Fig. 27 is a schematic diagram of a power consumption device in some embodiments of the present application, and Fig. 28 is a schematic diagram of a vehicle beam and a battery in some embodiments of the present application. The main body includes a body frame, the body frame includes a vehicle beam 1006, and the battery 100 is attached to at least one side of the vehicle beam 1006 along the width direction of the body frame, and the second direction y is the width direction of the vehicle beam.

[0333] The width direction of the body frame may be perpendicular to the direction of travel of the vehicle, and the width direction of the body frame is perpendicular to the longitudinal direction of the body frame. A cab 1002 is installed at one end of the body frame along the longitudinal direction of the body frame.

[0334] The power consuming equipment may include a commercial vehicle, for example, the power consuming equipment may be a large truck. The body frame of the large truck has a vehicle beam 1006, for example, the vehicle beam 1006 is a pair of longitudinal beams 1007. The longitudinal beams 1007 are spaced apart along the width direction of the vehicle, i.e., the two longitudinal beams 1007 are spaced apart along the second direction y. The longitudinal beams 1007 extend along the longitudinal direction of the vehicle.

[0335] In some embodiments, the battery 100 may be installed on the side of one longitudinal beam 1007 that is away from the other longitudinal beam 1007, and in some embodiments, the battery may be installed between two longitudinal beams 1007.

[0336] In the above solution, the second direction y is the width direction of the vehicle beam 1006, so that this power consumption device can use the battery 100 provided above to rationally utilize the space in the width direction of the vehicle beam 1006. By intersecting the first sealing interface 103 of the battery 100 with the first surface 21, the space occupied by the entire battery 100 along the second direction y can be reduced without affecting the sealing performance of the battery 100. When the arrangement space of the entire battery 100 along the width direction of the vehicle beam 1006 is limited, the space saved by the above-mentioned installation of the first sealing interface 103 can be used to improve the driving range of the battery 100 itself.

[0337] According to some embodiments of the present application, the present application further provides a battery 100, see FIGS. 2 to 13. The battery 100 includes a first housing 10, a second housing 20, and a battery cell 101. The first housing 10 is an upper housing of the battery 100, and the second housing 20 is a lower housing of the battery 100. The second housing 20 and the first housing 10 are connected to each other and together enclose a sealed space 102, and the battery cell 101 is installed in the sealed space 102. The first housing 10 includes a first end wall 12 and two first side walls 13. The first end wall 12 may be a top wall of the battery 100, and the two first side walls 13 are installed opposite the first end wall 12 along the second direction y (the width direction of the battery 100). The second housing 20 includes a second end wall 23, two second side walls 24, and two third side walls 25. The second end wall 23 may be a bottom wall of the battery 100, and the two second side walls 24 are respectively disposed on both ends of the second end wall 23 in the second direction y. The two third side walls 25 are respectively disposed on both ends of the second end wall 23 in the first direction x.

[0338] The inner surface of the first side wall 13 facing the second side wall 24 forms a first sealing surface 11, and the second sealing surface 22 is formed on the outer surface of the second side wall 24 facing the first side wall 13 and on the side surface of the second end wall 23 facing the first side wall 13. A first sealing member 30 is installed between the first sealing surface 11 and the second sealing surface 22, and a first fastening member 50 passes through the first side wall 13 and the first sealing member 30 and is locked to the second end wall 23, thereby fastening the first sealing member 30 between the first sealing surface 11 and the second sealing surface 22 and forming a first sealing interface 103 between the first sealing surface 11 and the second sealing surface 22.

[0339] The third side wall 25 has a first flat surface 250, a second flat surface 251, and a transition surface 252 located between the first flat surface 250 and the second flat surface 251. The first flat surface 250, the second flat surface 251, and the transition surface 252 are connected to the first housing 10, and the second seal member 40 is located between the first flat surface 250, the second flat surface 251, and the transition surface 252 and the first housing 10, and the first seal member 30 and the second seal member 40 are integrally molded.

[0340] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will appreciate that the present application can undergo various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. [Explanation of symbols]

[0341] 100—battery, 101—battery cell, 102—enclosed space, 103—first sealing interface, 10—first housing, 11—first sealing surface, 12—first end wall, 120—first end wall surface, 13—first side wall, 14—fourth side wall, 15—closing plate, 16—extending wall plate, 17—connection portion, 170—mating surface, 20—second housing, 21—first surface, 22—second sealing surface, 23—second end wall, 24—second side wall, 25—third side wall, 250—first flat surface, 251—second flat surface, 252—transition surface, 2520—beveled surface, 2521—arcuate surface, 26—enclosure, 30—first sealing element, 40—second sealing element, 41—first sub-sealing element, 42—second sub-sealing element, 43—third sub-sealing element bushing member, 50 - first fastening member, 51 - second fastening member, 52 - first connecting member, 60 - battery pack, 61 - first battery pack, 62 - second battery pack, 63 - side battery pack, 70 - binding member, 71 - first binding member, 710 - first part, 72 - second binding member, 720 - second part, 73 - outer frame, 74 - partition strip, 75 - side part, 80 - end plate, 90 - mounting part, 91 - side beam, x - first direction, y - second direction, z - third direction, 1000 - vehicle, 200 - controller, 300 - motor, 1001 - body, 1002 - cab, 1003 - passenger compartment, 1004 - battery frame, 1005 - traction bed, 1006 - vehicle beam, 1007 - longitudinal beam.

Claims

1. A battery, A battery cell; a first housing including a first sealing surface; a second housing including a first surface and a second sealing surface, the first surface being used to support the battery cell, the first housing and the second housing together surrounding each other to form a sealed space that houses the battery cell, and the first sealing surface and the second sealing surface being fitted together to form a first sealing interface for sealing the sealed space; The battery, wherein the first seal interface intersects the first surface.

2. 2. The battery of claim 1, wherein the first sealing surface and the second sealing surface are parallel to a first direction, and the first sealing surface and the second sealing surface intersect a second direction, both of which are parallel to the first surface.

3. 3. The battery according to claim 2, wherein a first sealing member is installed between the first sealing surface and the second sealing surface, and the first sealing member is located on one of the first sealing surface and the second sealing surface that is farther from the sealed space and closer to the sealed space.

4. 4. The battery according to claim 3, wherein along a width direction of the first seal member, one end of the first seal member is close to the sealed space and the other end of the first seal member is close to an outside of the battery, and the width direction of the first seal member intersects with the first surface.

5. 5. The battery of claim 3, wherein the second housing includes a second end wall and a second side wall, the first surface is located on the second end wall, at least a portion of the second sealing surface is installed on the second side wall, the second side wall is connected to an end of the second end wall in the second direction and is projected along the second direction, and at least a portion of the projection of the second side wall is located on a side of the first surface closest to the battery cell.

6. The battery of claim 5 , wherein at least a portion of the projection of the first seal member along the second direction is located on a side of the first surface adjacent to the battery cell.

7. The battery of claim 6 , wherein a projection of the first seal member and a projection of the battery cell at least partially overlap along the second direction.

8. 5. The battery of claim 3, wherein the second housing includes a second end wall, the first surface is located on the second end wall, and the second sealing surface is a side wall surface of the second end wall that is perpendicular to the second direction.

9. 9. The battery of claim 5, wherein the first housing includes a first end wall and a first side wall connected to each other, the first end wall includes a first end wall surface positioned opposite the first surface, at least a portion of the first sealing surface is positioned on the first side wall, and at least a portion of the first side wall is located on a side of the first end wall surface that is closest to the first surface.

10. The battery of claim 9 , wherein at least a portion of the first sidewall is located on a side of the first surface away from the battery cell.

11. 11. The battery of claim 9 or 10, wherein the second housing further includes a third side wall, the third side wall being located at an end of the second end wall in the first direction, and the third side wall extending toward and connected to the first housing.

12. 12. The battery of claim 11, wherein the third side wall includes a first flat surface away from the first surface and a second flat surface disposed transverse to the second direction, the first flat surface being adapted to form a sealing connection with the first end wall and the second flat surface being adapted to form a sealing connection with the first side wall.

13. The battery of claim 12 , further comprising a second seal member disposed between the third side wall and the first housing.

14. 14. The battery of claim 13, wherein the first flat surface and the second flat surface are connected via a transition surface, the transition surface including an inclined surface and / or an arcuate surface, and a mating surface is formed at a connection point between the first end wall and the first side wall, and the mating surface is positioned to correspond to the transition surface.

15. 15. The battery of claim 14, wherein the second seal member includes a first sub-seal member, a second sub-seal member, and a third sub-seal member, the first sub-seal member being positioned between the first flat surface and a first end wall, the second sub-seal member being positioned between the second flat surface and a first side wall, and the third sub-seal member being positioned between the transition surface and the mating surface.

16. 16. The battery of claim 5, further comprising a first fastening member that is drilled into the first sealing interface along the second direction and locked within the second end wall.

17. 17. The battery of claim 16, wherein a portion of the first fastening member that locks to the second end wall is located on a side of the first surface away from the sealed space.

18. The battery of claim 16 or 17, wherein a projection of the first fastening member and a projection of the battery cell at least partially overlap along a direction perpendicular to the first surface.

19. 19. The battery of claim 16, wherein the second housing further includes a third side wall, the third side wall being located at an end of the second end wall in the first direction, and the battery further includes a second fastening member, the second fastening member being used to connect the third side wall and the first housing, and the second fastening member being locked within the third side wall.

20. 3. The battery according to claim 2, wherein a first sealing member is installed between the first sealing surface and the second sealing surface, one end of the first sealing member is close to the sealed space and the other end of the first sealing member is close to the outside of the battery along a width direction of the first sealing member, and the width direction of the first sealing member is parallel to the first surface.

21. 21. The battery of claim 20, wherein the second housing includes a shroud, and an opening is formed in the shroud along the first direction, and the first housing includes a blocking plate, and the blocking plate is at least partially pressed into the shroud along the first direction and seals the opening.

22. the first housing further includes an elongated wall plate, at least a portion of the first sealing surface is provided on the elongated wall plate, the elongated wall plate is provided on an end of the closing plate in the second direction, and the closing plate has a cover surface facing the battery cell; 22. The battery of claim 21, wherein at least a portion of the projection of the elongated wall panel projected along the second direction is located on a side of the lid surface adjacent to the battery cells.

23. 23. The battery of claim 22, wherein at least a portion of the projection of the first seal member along the second direction is located on a side of the lid surface adjacent to the battery cell.

24. 24. The battery of claim 21, wherein a projection of the first sealing member and a projection of the battery cell at least partially overlap along the second direction.

25. 22. The battery of claim 21, wherein the second sealing surface is located on an inner wall surface of the enclosure, and at least a portion of the first sealing surface is located on an outer wall surface of the closing plate.

26. 26. The battery of claim 21, further comprising a first connection member, the first connection member being drilled in the first sealing interface along the second direction and locked to the closing plate.

27. 27. The battery of claim 26, wherein a projection of the first connection member and a projection of the battery cell at least partially overlap along the first direction.

28. 28. The battery of claim 2, wherein the battery includes at least one battery pack, the battery pack including a plurality of the battery cells arranged in a group, and a binding member is provided in the battery pack, the binding member being used to bind the plurality of the battery cells arranged in the group.

29. the battery pack includes a first battery pack and a second battery pack disposed adjacent to each other along the second direction, a first bundling member disposed on the first battery pack, a second bundling member disposed on the second battery pack, a first portion of the first bundling member disposed on a side surface of the first battery pack facing the second battery pack along the second direction, and a second portion of the second bundling member disposed on a side surface of the second battery pack facing the first battery pack along the second direction; 29. The battery of claim 28, wherein the projection of the first portion and the projection of the second portion are offset along the second direction, and the projection of the first portion and the projection of the second portion at least partially overlap along a direction perpendicular to the first surface.

30. the number of the battery packs is plural, 29. The battery of claim 28, wherein the binding member includes an outer frame and a partition strip, the partition strip is disposed inside the outer frame and divides the interior of the outer frame into a plurality of sub-spaces, and each of the battery packs is disposed in a respective one of the sub-spaces.

31. the number of the battery packs is plural, and the battery packs are arranged along the second direction; 29. The battery of claim 28, wherein the battery further includes an end plate, the end plate being connected to end faces in the first direction of the plurality of battery packs, and the binding member being connected to the end plate.

32. the second housing includes a second end wall and a second side wall, the first surface is located on the second end wall, the second sealing surface is located on the second side wall, and the second side wall is connected to an end of the second end wall in the second direction; 29. The battery of claim 28, wherein the battery pack includes a side battery pack arranged adjacent to the second side wall in the second direction, the binding member includes a side portion arranged on a side of the side battery pack facing the second side wall in the second direction, and the second side wall is located on a side of the side portion closest to the first surface.

33. 33. The battery of claim 32, wherein the edge side portion and the second side wall are offset from each other along the second direction, and when projected along a direction perpendicular to the first surface, the edge side portion and the second side wall at least partially overlap.

34. 34. The battery of claim 1, wherein the second housing includes a second end wall, the first surface is located on the second end wall, and the battery further includes a plurality of mounting portions, all of which are located on a surface of the second end wall opposite the first surface.

35. 35. The battery of claim 34, wherein projections of the plurality of mounting portions are located entirely within a projection range of the first surface along a direction perpendicular to the first surface.

36. 36. The battery of claim 1, wherein the battery cells are blade battery cells.

37. 1. A power consuming device, comprising:

37. A power consuming device comprising a main body and a battery according to any one of claims 1 to 36, wherein the battery is adapted to provide electrical energy to the main body.

38. 38. The power consuming device of claim 37, wherein the first sealing surface and the second sealing surface are parallel to a first direction and intersect with a second direction, both of which are parallel to the first surface.

39. 39. The power consumption device of claim 38, wherein the main body includes a truck body frame, the truck body frame includes a driver's cab, a passenger compartment, and a battery frame located between the driver's cab and the passenger compartment, the battery frame is used to mount the battery, and the second direction is a direction in which the driver's cab faces the passenger compartment.

40. 39. The power consuming device of claim 38, wherein the main body includes a tractor body frame, the tractor body frame includes a cab, a towing bed, and a battery frame located between the cab and the towing bed, the battery frame being used to mount the battery, and the second direction is a direction in which the cab faces the towing bed.

41. 39. The power consumption device of claim 38, wherein the main body includes a body frame, the body frame includes a vehicle beam, the battery is attached to at least one side of the vehicle beam along the width direction of the body frame, and the second direction is the width direction of the vehicle beam.

Images