Battery and vehicle

Abstract

Embodiments of the disclosure provide a battery and a vehicle. The vehicle comprises a supporting plate and a battery. The supporting plate is provided with elevated parts, and each elevated part forms an accommodating space. The battery is arranged on the side of the supporting plate provided with the accommodating spaces. The battery comprises an accommodating box and battery assemblies. The battery assemblies are accommodated in the accommodating box, and a part of each battery assembly extends into each accommodating space. According to the vehicle in embodiments of the disclosure, the elevated parts are provided on the supporting plate and a part of each battery assembly extends into each accommodating space of the elevated parts, such that the elevated parts can utilize the idle space of the space inside the vehicle, the utilization of the internal space of the vehicle is improved and the vehicle structure is more compact, and also, the space in the vehicle that can be used for arranging a battery assembly is increased, so that the battery capacity can be increased, or the overall size of the vehicle can be reduced while the battery capacity is set.

Description

Battery and vehicle

[0001] Cross-references to related publications

[0002] The present disclosure is based on the Chinese patent disclosure with publication number 202311265770.4, publication date September 27, 2023, and invention name “A battery and a vehicle”, the Chinese patent disclosure with publication number 202322642524.8, publication date September 27, 2023, and invention name “A vehicle”, and the Chinese patent disclosure with publication number 202311264394.7, publication date September 27, 2023, and invention name “A battery cell, a cover assembly, a battery and a vehicle”, and claims the priority of the above-mentioned Chinese patent disclosures. The entire contents of the above-mentioned Chinese patent disclosures are hereby incorporated into the present disclosure by reference. Technical Field

[0003] The present disclosure relates to the field of vehicle technology, and in particular to a battery and a vehicle. Background Art

[0004] New energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used.

[0005] The batteries in new energy vehicles take up space inside the car.

[0006] For new energy vehicles powered by electric power, battery capacity directly impacts the vehicle's maximum range. Therefore, utilizing the vehicle's limited space to maximize battery placement directly impacts the vehicle's maximum range, playing a crucial role in alleviating user anxiety about range, reducing charging times, and improving the user experience.

[0007] Summary of the Invention

[0008] In view of this, the embodiments of the present disclosure aim to provide a battery and a vehicle that can improve the utilization rate of the vehicle's interior space.

[0009] To achieve the above objectives, the technical solution of the embodiment of the present disclosure is implemented as follows:

[0010] An embodiment of the present disclosure provides a vehicle, comprising:

[0011] A support plate is formed with a raised portion, wherein the raised portion forms a receiving space;

[0012] The battery is arranged on the side of the support plate where the accommodation space is provided. The battery includes a accommodation box and a battery assembly. The battery assembly is accommodated in the accommodation box, and a portion of the battery assembly extends into the accommodation space.

[0013] On the one hand, the vehicle support plate in the embodiment of the present disclosure, by providing a raised portion on the support plate, can utilize the idle space in the vehicle interior, thereby improving the utilization of the vehicle interior space and making the vehicle structure more compact; on the other hand, the raised portion is formed with a receiving space, which is beneficial for increasing the space in the vehicle that can be used to arrange the battery assembly, and further extending a part of the battery assembly into the receiving space, thereby increasing the capacity of the battery, or when the battery capacity is constant, it is beneficial to reduce the overall size of the vehicle.

[0014] In some embodiments, the battery assembly includes a protruding portion, at least a portion of which is accommodated within the accommodation space. This helps regularize the outer contour of the portion of the battery assembly outside the accommodation space, thereby regularizing the shape of the corresponding accommodation box that covers this portion, and thus regularizing the outer contour of the vehicle formed by the accommodation box, thereby reducing wind resistance. On the one hand, this helps reduce the size of the accommodation box, making the battery structure more compact; on the other hand, it helps make the outer contour of the vehicle formed by the accommodation box more flat, which helps reduce the vehicle's drag coefficient and increase the vehicle's ground clearance, thereby reducing the risk of the accommodation box increasing wind resistance and colliding with foreign objects on the road during driving, thereby reducing the risk of battery damage.

[0015] In some embodiments, in a projection plane perpendicular to the protrusion direction of the protrusion, a portion of the projection of the battery assembly is located outside the projection of the accommodation space. This helps the battery assembly better utilize the space on one side of the support plate and increases the battery capacity.

[0016] In some embodiments, the battery assembly further includes a plurality of battery cells, each of which includes a housing having a first wall, with the protruding portion disposed on the first wall. This arrangement facilitates increasing the volume of the battery cells and accommodating the space within the housing box to accommodate battery cells of varying external shapes, allowing for more compact arrangement of battery cells of varying external shapes within the housing box, thereby improving the battery's energy density.

[0017] In some embodiments, the battery assembly further includes a busbar, and the battery cells further include poles, the poles being disposed on the first shell wall. The busbar electrically connects the poles of the two battery cells, the protruding portion includes the busbar, and at least a portion of the busbar is located within the storage space. This facilitates further improving vehicle space utilization by utilizing the storage space to increase the space available for busbar placement. This, on the one hand, increases the number of battery cells that can be electrically connected to the busbar, thereby increasing the battery capacity. On the other hand, it facilitates a more compact and regular arrangement of the different battery cells within the storage box, thereby increasing the battery's energy density.

[0018] In some embodiments, the pole is at least partially accommodated in the accommodation space. This can increase the space available for arranging the pole by utilizing the accommodation space, facilitate the placement of larger capacity batteries in the vehicle, and further improve the space utilization of the vehicle.

[0019] In some embodiments, the first shell wall includes a protrusion, the protruding portion includes the protrusion, and at least a portion of the protrusion is located within the accommodation space. This further increases the space within the battery cell, thereby increasing the battery capacity. The support plate also facilitates a more compact structure within the vehicle, thereby improving the utilization of the vehicle's interior space.

[0020] In some embodiments, the protrusion is provided with a pole, which is beneficial for improving the utilization efficiency of the space within the accommodating protrusion, making the arrangement between the battery and the support plate more compact, and improving the energy density and space utilization of the battery, thereby improving the utilization rate of the vehicle interior space.

[0021] In some embodiments, there are two poles with opposite polarities, and the two poles are disposed on the same protrusion. This facilitates providing mounting locations for both poles by only manufacturing one protrusion, thereby reducing the number of manufacturing steps for the first shell wall and lowering production costs.

[0022] In some embodiments, the protrusion is located at one end of the first shell wall along its length. This maximizes the area of ​​the first shell wall located at the other end along its length, away from the protrusion. This facilitates placement of other battery components with larger outer dimensions in this area, facilitating the placement of other battery components. This also helps reduce the battery's volume, improves internal battery space utilization, and makes the battery more compact, thereby increasing the total battery capacity in the vehicle.

[0023] In some embodiments, there are two poles with opposite polarities, and the two poles are respectively provided on the two protrusions. This, on the one hand, helps reduce the volume of a single protrusion, making the structure more compact, and helps reduce the volume of the battery cells, thereby facilitating the arrangement of more battery cells in the battery and increasing the total battery capacity in the vehicle; on the other hand, it helps to space the two poles, reducing the risk of short circuits between the two poles and improving the safety of the battery cells.

[0024] In some embodiments, the two protrusions are located at one of the two ends of the first shell wall along its length. This facilitates forming a relatively large flat area in the portion of the first shell wall between the two protrusions. Furthermore, given a given battery volume, other components with larger outer dimensions can be easily arranged in this area, facilitating the placement of other components within the battery. This also helps reduce the battery's volume, improves internal battery space utilization, and makes the battery more compact, thereby increasing the total battery capacity in the vehicle.

[0025] In some embodiments, the protrusion is located at the center of the first shell wall along the length direction of the first shell wall. This helps to make the structure of the battery cell symmetrical about the first center plane, facilitates the adjustment of the placement direction of multiple battery cells when they are arranged in the battery, and improves the adaptability of the battery cells in the battery.

[0026] And / or, the center position of the first shell wall along its width direction coincides with the center position of the protrusion along the width direction of the first shell wall. This is further beneficial for forming a larger flat area in the width direction of the first shell wall, making it convenient for other components in the battery with larger outer contour dimensions to be arranged in this area, providing convenience for the arrangement of other components in the battery. At the same time, it is beneficial for reducing the volume of the battery, improving the space utilization inside the battery, making the volume of the battery more compact, and helping to increase the total battery capacity in the vehicle.

[0027] In some embodiments, the two terminals are spaced apart along the length of the first shell wall. This maximizes the spacing between the two protrusions, thereby facilitating the formation of a relatively large flat area in the portion of the first shell wall between the two protrusions. Furthermore, given a certain internal volume of the battery, other components of the battery with relatively large external dimensions can be arranged in this area, thereby facilitating the arrangement of other components in the battery. Furthermore, this helps reduce the volume of the battery, improves the space utilization inside the battery, and thereby improves the space utilization inside the vehicle.

[0028] And / or, the two poles are spaced apart along the width direction of the first shell wall. In this way, the two poles are arranged along the width direction of the first shell wall, which is conducive to shortening the distance between the poles of different polarities between two adjacent battery cells, facilitating the electrical connection between two different adjacent battery cells, and thus helping to reduce the size of the battery.

[0029] In some embodiments, the battery cell further includes an electrode assembly, which is housed within the housing. A portion of the first housing wall is recessed to form a relief groove, the relief groove being located on a side of the protrusion closer to the electrode assembly, with a portion of the electrode assembly located within the relief groove. This allows the first housing wall to be as close as possible to the electrode assembly, effectively reducing the volume within the housing while allowing as much of the electrode assembly as possible to extend into the relief groove. This helps reduce redundant volume within the battery cell, making the space within the battery cell more compact, thereby reducing the total volume and outer dimensions of the battery cell, and thereby increasing the number of battery cells that can be accommodated within the battery, thereby improving the battery's energy density and space utilization.

[0030] In some embodiments, the electrode assembly includes a main body and a tab, wherein the tab is disposed on a side edge of the main body and is electrically connected to the main body, and at least a portion of the tab is located in the avoidance groove.

[0031] In some embodiments, at least a portion of the tab is located in the accommodation space, which is beneficial for further increasing the volume of the main body in the battery cell, thereby facilitating an improvement in the energy density of the battery cell.

[0032] In some embodiments, the battery cell further includes a pole, which is disposed on the first shell wall. The electrode assembly further includes a transition piece, and the tab is electrically connected to the pole via the transition piece. At least a portion of the tab is located in the accommodation space. This helps to further increase the volume of the main body of the battery cell, thereby improving the energy density of the battery cell.

[0033] And / or, at least a portion of the adapter is located in the accommodating space, which is beneficial for increasing the space for arranging the adapter, thereby allowing more space to be used for arranging the main body, which is beneficial for increasing the capacity of the battery cell.

[0034] In some embodiments, the battery assembly further includes a sampling member, at least a portion of which is accommodated in the accommodation space. This facilitates increasing the space for arranging the sampling member by utilizing the accommodation space, thereby facilitating an increase in the total volume of the battery, and further facilitating an increase in the capacity of the battery in the vehicle.

[0035] And / or, the battery assembly further includes a battery management system, at least a portion of which is accommodated in the accommodation space. This facilitates increasing the space for arranging the battery management system by utilizing the accommodation space, thereby facilitating an increase in the total volume of the battery, and further facilitating an increase in the capacity of the battery in the vehicle. The accommodation space support plate improves space utilization within the vehicle, and facilitates making the shape of the portion of the battery located outside the accommodation space more regular.

[0036] And / or, the battery assembly further includes a relay, and at least a portion of the relay is accommodated in the accommodation space. This is beneficial for increasing the space for arranging the relay by utilizing the accommodation space, thereby facilitating an increase in the total volume of the battery, and further facilitating an increase in the capacity of the battery in the vehicle. The accommodation space support plate improves the space utilization rate of the space within the vehicle, and facilitates making the shape of the portion of the battery located outside the accommodation space more regular.

[0037] And / or, the battery assembly further includes a high-voltage power distribution unit, and at least a portion of the high-voltage power distribution unit is accommodated in the accommodation space. This is beneficial for increasing the space for arranging the high-voltage power distribution unit by utilizing the accommodation space, thereby facilitating an increase in the total volume of the battery, further facilitating an increase in the capacity of the battery in the vehicle, and improving the space utilization rate of the space inside the vehicle, and facilitating a more regular shape of the portion of the battery located outside the accommodation space;

[0038] And / or, the battery assembly also includes high and low voltage wiring harnesses, and at least part of the high and low voltage wiring harnesses are accommodated in the accommodating space. This is beneficial for increasing the space for arranging the high and low voltage wiring harnesses by utilizing the accommodating space, reducing the bending of the high and low voltage wiring harnesses, and increasing the total volume of the battery, which is further beneficial for improving the capacity of the battery in the vehicle.

[0039] In some embodiments, the length of the battery cell is not less than 350 mm, which is conducive to the electrochemical reaction between the electrode assembly and the electrolyte in the battery cell to store or release sufficient electrical energy, and is conducive to the total electrical energy in the battery meeting the demand;

[0040] And / or, the width of the battery cell is in the range of 5 mm to 50 mm, so that the size of the battery cell is convenient for transportation and better adapted to the size of storage boxes of different sizes;

[0041] And / or, the height of the battery cell ranges from 80 mm to 200 mm, so that the size of the battery cell is convenient for transportation and better adapts to the sizes of storage boxes of different sizes.

[0042] In some embodiments, the height of the protruding portion within the accommodating space ranges from 2 mm to 10 mm, thereby improving space utilization within the accommodating space.

[0043] In some embodiments, the vehicle further includes a seat, which is provided on the side of the support plate where the raised portion is formed. This is beneficial to increasing the volume of the battery in the vehicle, thereby increasing the battery capacity and improving the vehicle's cruising range. At the same time, it is beneficial to make the flat box wall of the storage box face the ground, making the bottom surface of the vehicle smoother, reducing the vehicle's drag coefficient and increasing the vehicle's ground clearance, and reducing the risk of the raised portion increasing wind resistance and colliding with foreign objects on the road during driving, thereby reducing the risk of battery damage.

[0044] In some embodiments, in the projection perpendicular to the height direction of the vehicle, part or all of the projection of the raised portion is located within the projection range of the seat. In this way, the raised portion utilizes the space under the seat, reducing the chance of the occupant touching the raised portion during riding, thereby reducing the encroachment of the raised portion on the normal activity space of the occupant, improving the user experience, and improving the space utilization rate in the vehicle.

[0045] In some embodiments, the number of the seats is at least two, and a first gap is formed between two adjacent seats along the width direction of the vehicle. The raised portion includes a first raised portion, and part or all of the first raised portion is located in the first gap. In this way, the first raised portion can utilize the space in the first gap, thereby increasing the battery volume while reducing the probability of the occupant touching the first raised portion during the ride, reducing the interference of the first raised portion on the normal activities of the occupant, and improving the space utilization rate in the vehicle.

[0046] In some embodiments, there are multiple seats, and the multiple seats are divided into at least two rows spaced apart along the length direction of the vehicle. The first raised portion extends along the length direction of the vehicle to under another adjacent row of seats. This is beneficial to increasing the volume of the first raised portion, and further beneficial to increasing the volume of the accommodation space in the first raised portion, which is beneficial to increasing the volume of the battery and increasing the capacity of the battery.

[0047] In some embodiments, the raised portion includes a second raised portion, which extends along the length direction of the vehicle and is located on one side of the support plate seat along the width direction of the vehicle. In this way, the interference of the second raised portion on the leg and foot movements of the occupant can be reduced, thereby improving the occupant's user experience.

[0048] In some embodiments, the number of the second raised portions is two, and the two second bosses are respectively located at one end of the support plate along the width direction of the vehicle, and the seat is located between the two second bosses. This can help increase the space for the occupants' legs and feet to move, thereby improving the occupants' user experience. At the same time, the arrangement of the second raised portions effectively utilizes the space along the edge of the vehicle along the width.

[0049] In some embodiments, the second raised portion is spaced apart from the seat in the width direction of the vehicle, which is beneficial for increasing the space for the legs and feet of the occupant and improving the user's riding experience;

[0050] And / or, part of the second raised portion is located below the seat, which is beneficial for reducing the size of the support plate along the width direction, making the structure of the vehicle more compact.

[0051] In some embodiments, the raised portion includes a third raised portion, which extends along the width direction of the vehicle. There are multiple seats, and the multiple seats are divided into at least two rows spaced apart along the length direction of the vehicle. At least part of the third raised portion is located under the seats in the same row. In this way, the third raised portion better utilizes the space under the seats along the width direction of the vehicle. At the same time, the third raised portion can reduce the encroachment on the space between two adjacent rows of seats, reduce interference with passenger activities, and enhance passenger experience.

[0052] In some embodiments, the seat includes a seat, and a second gap is formed between at least a portion of the seat and the support plate along the height direction of the vehicle. At least a portion of the raised portion is located in the second gap and is spaced apart from the seat along the height direction of the vehicle. In this way, the probability of the raised portion being damaged by the pressure of the occupant due to direct contact between the raised portion and the seat can be reduced.

[0053] In some embodiments, the seat includes a support leg, and the seat and the support plate are spaced apart in the vertical direction to form the second gap. The support leg is connected between the seat and the support plate. In this way, it is easy to achieve the spacing setting between the seat and the raised portion, which is beneficial to make the shape of the seat regular and easy to place; at the same time, it is easy for the occupant to extend his feet into the second gap, which makes it easier for the occupant to sit in a relaxed posture and improves riding comfort.

[0054] In some embodiments, there are multiple legs, and the legs are spaced apart along the width direction of the vehicle. Part or all of the raised portion is located between two adjacent legs along the width direction of the vehicle. In this way, the arrangement of the raised portion facilitates the use of the space between the two legs, which is beneficial to improving the space utilization of the battery in the vehicle's interior space and increasing the battery capacity.

[0055] In some embodiments, the seat includes a cushion pad, and the raised portion is embedded in the cushion pad to support the seat along the height direction of the vehicle. This helps to simplify the structure of the seat, improve the utilization of the internal space of the seat, and reduce production costs.

[0056] In some embodiments, one side of the storage box is opened to form a first opening, the support plate cover is arranged on the first opening to jointly form a storage cavity, and the battery assembly is arranged in the storage cavity. This is conducive to simplifying the structure of the vehicle, making the arrangement between the support plate and the battery more compact, and is conducive to increasing the capacity of the battery when the volume of the vehicle's internal space is constant; at the same time, after the battery is removed from the vehicle, the battery assembly can be directly inspected and repaired through the first opening.

[0057] In some embodiments, the raised portion includes a raised body and a first closing cover, the raised body is provided with a first through hole, the first through hole is connected to the accommodating space, and the first closing cover is detachably connected to the raised body to cover the first through hole. In this way, when the battery needs to be inspected and maintained, the first closing cover can be removed to inspect the part of the battery assembly located in the accommodating space from the interior space of the vehicle through the first opening and the first through hole, without the need to disassemble the battery additionally, which is beneficial to increasing the activity space of the maintenance workers and improving the convenience of the maintenance work.

[0058] In some embodiments, the raised portion further includes a first seal, which is arranged around the periphery of the first through hole and is clamped between the raised body and the first closing cover to seal the raised body and the first closing cover. In this way, the joint space between the raised body and the first closing cover and the contact area with the first seal is reduced, thereby reducing the probability of foreign matter entering the accommodating cavity and affecting the operation of the battery, extending the service life of the battery, and facilitating the safe use of the battery.

[0059] In some embodiments, the first closure cover is mounted on the raised body by a threaded fastener. Thus, the use of the threaded fastener facilitates disassembly while improving the connection strength between the first closure cover and the raised body. Alternatively,

[0060] The first closing cover is slidably engaged with the raised body. Thus, the first closing cover can be slidably engaged with the raised body, so that the first through hole can be opened or closed more quickly by sliding, thereby improving the convenience of maintenance. Alternatively,

[0061] The first closing cover is hinged to the raised body. Thus, the first closing cover can be rotated to open or close the first through hole more quickly, thereby improving the convenience of maintenance.

[0062] In some embodiments, the battery includes a temperature control component, which is sandwiched between the support plate and the battery assembly. In this way, the temperature control component absorbs the heat generated during the operation of the battery assembly, thereby reducing the operating temperature of the battery assembly and improving the safety of the battery. At the same time, the heat transferred to the support plate and radiated into the interior space of the vehicle during the operation of the battery assembly is reduced. The advantage of the larger area of ​​the support plate can be better utilized to increase the contact area between the temperature control component and the battery assembly, thereby improving the temperature control effect.

[0063] In some embodiments, the battery includes a first adhesive layer adhered between the support plate and the outer surface of the temperature control assembly, thereby fixing the relative position between the temperature control assembly and the support plate, thereby reducing the probability of friction damage caused by relative movement between the two.

[0064] And / or, the battery includes a third adhesive layer, which is adhered between the temperature control component and the outer surface of the battery component. In this way, the relative position between the temperature control component and the battery component is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0065] In some embodiments, the battery assembly further includes a battery cell, the battery cell including a housing having a first wall, the first wall including a protrusion, at least a portion of the protrusion being located within the accommodation space, and the height of the protrusion not exceeding 77% of the height of the protrusion. This arrangement, on the one hand, facilitates spacing between the protrusion and the accommodation space along the height of the battery, thereby reducing the likelihood of damage from direct contact between the two and facilitating the arrangement of other components of the battery assembly within the accommodation space; and on the other hand, the thickness of the protrusion provides better protection for the protrusion.

[0066] In some embodiments, the height of the protrusion accounts for 21% to 53% of the height of the raised portion. This further ensures that the size of the accommodation space meets the requirements for arranging other components of the battery assembly, and further helps ensure that the raised portion has sufficient strength to protect the protrusion.

[0067] In some embodiments, the battery assembly includes battery cells, each of which includes a terminal, and the terminals of at least two of the battery cells are located in the same accommodation space. This facilitates electrical connection of the terminals of different battery cells within the same accommodation space, thereby making the battery structure more compact.

[0068] In some embodiments, the vehicle includes a second insulating member disposed on the inner wall of the storage space. The insulating properties of the second insulating member can reduce the risk of contact between the battery assembly and the inner wall of the storage space, thereby reducing the risk of charge transfer between the battery assembly and the support plate, and thus reducing the risk of battery short circuits and other problems during use.

[0069] In some embodiments, the battery assembly includes a battery cell, each of which includes a terminal, and the second insulating member is disposed opposite the terminal. This reduces the probability of the terminal contacting the support plate due to relative movement between the battery assembly and the support plate, thereby reducing the risk of the battery cell short-circuiting due to contact between the terminal and the support plate.

[0070] In some embodiments, the battery assembly further includes a current collector, at least partially located within the storage space, and a spacing between the inner wall of the storage space and the current collector along a first direction that is no less than 1% of the size of the storage space along the first direction, the first direction being perpendicular to the direction of the protrusion. This helps reduce the probability of the current collector contacting the inner wall of the storage space, thereby reducing the probability of a short circuit caused by contact between the current collector and the support plate.

[0071] In some embodiments, the distance between the inner wall of the accommodating space and the current collector along the first direction accounts for 2% to 10% of the size of the accommodating space along the first direction, thereby further reducing the probability of the current collector contacting the inner wall of the accommodating space.

[0072] In some embodiments, the storage box includes a first box wall, which is located on the side of the storage box facing the support plate, and a portion of the first box wall extends into the storage space. In this way, on the one hand, the first box wall can protect the battery assembly during the individual transportation of the battery; on the other hand, the probability of contact between the battery assembly and the support plate is reduced, and the probability of battery leakage and other problems causing adverse effects on other components and personnel in the vehicle is reduced.

[0073] In some embodiments, the storage box includes a box body and a box cover, the first box wall forms the box cover, one side of the box body is opened to form a second opening, the box cover is arranged on the second opening to form a storage cavity with the box body, and the battery assembly is arranged in the storage cavity. In this way, the storage box is formed by splicing the box body and the box cover, which is convenient for disassembling the storage box according to actual needs to inspect and maintain the battery assembly.

[0074] In some embodiments, the first box wall includes a box wall body and a second closing cover, the box wall body is provided with a second through hole, the second through hole is connected to the accommodating cavity, and the second closing cover is detachably connected to the box wall body to cover the second through hole. In this way, when the battery is separated from the vehicle, the battery assembly located in the accommodating cavity can be inspected and maintained through the second through hole only by disassembling the second closing cover, thereby improving the convenience and efficiency of inspection.

[0075] In some embodiments, the box cover also includes a second seal, which is arranged around the periphery of the second through hole and is clamped between the box wall body and the second closing cover to seal the box wall body and the second closing cover. In this way, the joint space between the box wall body and the second closing cover and the contact area with the second seal is reduced, thereby reducing the probability of foreign matter entering the accommodating cavity and affecting the operation of the battery assembly, extending the service life of the battery, and facilitating the safe use of the battery.

[0076] In some embodiments, the second closure cover is mounted on the box wall body by means of threaded fasteners. Thus, the use of threaded fasteners facilitates disassembly while improving the connection strength between the second closure cover and the box wall body. Alternatively,

[0077] The second closing cover is slidably engaged with the box wall body. Thus, the second closing cover can be slidably engaged with the box wall body, so that the second through hole can be opened or closed more quickly by sliding, thereby improving the convenience of maintenance. Or,

[0078] The second closing cover is hinged to the box wall body. Thus, the second closing cover can be rotated to open or close the second through hole more quickly, thereby improving the convenience of maintenance.

[0079] In some embodiments, the raised portion includes a raised body and a first closing cover, the raised body is provided with a first through hole, the first through hole is connected to the accommodating space, the first closing cover is detachably connected to the raised body to cover the first through hole, and the second through hole and the first through hole are arranged opposite to each other. In this way, when the first closing cover and the second closing cover are removed, the interior space of the vehicle, the accommodating space and the accommodating cavity are connected to each other, and the accommodating space and the accommodating cavity are arranged opposite to each other, so that it is convenient for maintenance personnel to directly perform maintenance operations on the battery assembly from the interior space of the vehicle without removing the battery from the vehicle, thereby improving the convenience of maintenance operations and improving work efficiency.

[0080] In some embodiments, the battery includes a temperature control component, which is sandwiched between the first box wall and the battery assembly. In this way, the temperature control component absorbs the heat generated by the battery assembly during operation, thereby reducing the operating temperature of the battery assembly and improving the safety of battery use. At the same time, the temperature control component can radiate part of the heat directly to the outside through the box wall of the containing box, thereby increasing the heat dissipation area and improving the temperature control effect.

[0081] In some embodiments, the battery includes a second adhesive layer adhered between the first box wall and the outer surface of the temperature control assembly. This fixes the relative position of the temperature control assembly and the first box wall, thereby reducing the probability of friction damage caused by relative movement between the two.

[0082] And / or, the battery includes a third adhesive layer, which is adhered between the temperature control component and the outer surface of the battery component. In this way, the relative position between the temperature control component and the battery component is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0083] In some embodiments, a portion of the first box wall protrudes to form a boss, at least a portion of the boss extends into the accommodating space, and a side of the boss facing away from the accommodating space forms an accommodating portion, and a portion of the battery assembly is located in the accommodating portion. In this way, a portion of the battery assembly is located in the accommodating space through the accommodating portion, so that the battery assembly located in the accommodating space is protected by the boss, reducing the probability of direct contact between the battery assembly and the support plate; at the same time, it is beneficial to make the area of ​​the first box wall with the boss consistent with the thickness of the other areas, which is beneficial to reducing the overall size of the first box wall, and then beneficial to reducing the three-dimensional size of the accommodating box, reducing the overall volume of the battery, and facilitating improving the energy density and space utilization of the battery.

[0084] In some embodiments, the height of the boss does not exceed 98.5% of the height of the raised portion, thereby reducing the probability that the boss abuts against the inner wall of the accommodating space along the height direction and affects the arrangement between the battery and the support plate.

[0085] In some embodiments, the height of the boss accounts for 33.3% to 53% of the height of the raised portion. This, on the one hand, further reduces the probability of the boss abutting the inner wall of the accommodating space along the height direction; on the other hand, it helps to increase the space in the accommodating portion for accommodating the battery assembly.

[0086] In some embodiments, the battery assembly further includes a battery cell, the battery cell including a housing having a first wall. The first wall includes a protrusion, at least a portion of which is located within the receiving portion, and the height of the protrusion does not exceed 77% of the height of the boss. This arrangement, on the one hand, facilitates spacing between the protrusion and the receiving portion along the height of the battery, thereby reducing the risk of damage caused by direct contact between the two and facilitating the arrangement of other components of the battery assembly within the receiving portion. On the other hand, the thickness of the first wall can better protect the protrusion.

[0087] In some embodiments, the height of the protrusion accounts for 36% to 53% of the height of the boss, thereby further reducing the probability of damage caused by direct contact between the two and facilitating the arrangement of other components of the battery assembly in the receiving portion.

[0088] In some embodiments, the battery assembly includes a protruding portion, at least partially located within the receiving portion, and having a height dimension no greater than 94% of a height dimension of the boss. This helps reduce the probability of vertical contact between the protruding portion and the boss, thereby reducing the probability of damage caused by such contact.

[0089] In some embodiments, the height of the protruding portion accounts for 74% to 86% of the height of the boss, which further helps reduce the probability of the protruding portion and the boss abutting in the vertical direction and helps improve the space utilization of the accommodating portion by the protruding portion.

[0090] In some embodiments, the battery assembly further includes a current collector, at least partially located within the accommodating portion, with the spacing between the inner wall of the accommodating portion and the current collector along a first direction being no less than 1% of the dimension of the accommodating portion along the first direction, where the first direction is perpendicular to the thickness of the first wall. This helps reduce the probability of the current collector contacting the inner wall of the accommodating portion, which could cause a short circuit, thereby enabling the battery assembly to function properly.

[0091] In some embodiments, the spacing between the inner wall of the receiving portion and the current collector along the first direction accounts for 2% to 10% of the size of the receiving portion along the first direction. This further helps reduce the probability of the current collector contacting the inner wall of the receiving portion and causing a short circuit.

[0092] In some embodiments, the battery assembly includes battery cells, each of which includes a terminal, and the terminal of at least two of the battery cells is located in the same receiving portion. This facilitates electrical connection of the terminals of different battery cells in one receiving portion, thereby making the battery structure more compact.

[0093] In some embodiments, the battery includes a first insulating member disposed on the inner wall of the housing. This reduces the risk of the battery assembly contacting the inner wall of the housing, thereby reducing the risk of charge transfer between the battery assembly and the first wall, and thus reducing the risk of short circuits and other problems during battery use.

[0094] In some embodiments, the battery assembly includes a battery cell, each of which includes a terminal, and the first insulating member is disposed opposite the terminal. This reduces the probability of the terminal contacting the first box wall due to relative movement between the battery assembly and the first box wall, thereby reducing the risk of the battery cell short-circuiting due to contact between the terminal and the first box wall.

[0095] In some embodiments, the box cover includes a box wall body and a second closing cover, the box wall body is provided with a second through hole, the second through hole is connected to the accommodating cavity, the second closing cover is detachably connected to the box wall body to cover the second through hole, and part or all of the boss forms the second closing cover, so that the boss can be easily disassembled and assembled to facilitate inspection and maintenance of the battery assembly.

[0096] In some embodiments, the length direction of the boss is the same as the length direction of the accommodating cavity, and the two have the same size along the length direction. This helps to maximize the size of the accommodating portion along the length direction of the battery, thereby facilitating the size and volume of the accommodating portion to adapt to various battery assemblies of different sizes and shapes.

[0097] Alternatively, the length direction of the boss is the same as the width direction of the accommodating cavity, and the length dimension of the boss is the same as the width dimension of the first box wall. This is beneficial to increase the size of the accommodating portion along the width direction of the battery as much as possible, thereby facilitating the size and volume of the accommodating portion to adapt to various battery assemblies of different sizes and shapes.

[0098] In some embodiments, the width of the boss does not exceed 500 mm. This, on the one hand, helps to provide a larger flat area on the surface of the first box wall so as to adapt to other components in the vehicle and reduce the adverse effects of the boss on the layout of other components in the vehicle; on the other hand, it reduces the adverse effects of the boss's large width on its structural strength and reduces the probability of damage to components in the accommodating portion due to deformation of the boss.

[0099] And / or, the height of the boss does not exceed 300 mm, which makes it easier for other components in the vehicle to adapt and reduces the adverse effects of the boss on the layout of other components in the vehicle; at the same time, it reduces the probability of the boss being deformed and bent due to shear stress perpendicular to the height direction, thereby damaging the battery assembly in the accommodating portion.

[0100] In some embodiments, the width of the boss ranges from 50 mm to 300 mm, so that the space in the accommodating portion meets the arrangement requirements of the battery assembly;

[0101] And / or, the height of the boss is in the range of 5 mm to 100 mm, so that the space in the accommodating portion can meet the arrangement requirements of the protruding portion.

[0102] In some embodiments, the width of the raised portion does not exceed 500 mm, so that the space within the accommodating portion meets the arrangement requirements of the battery assembly;

[0103] And / or, the height of the raised portion does not exceed 300 mm, so that it is compatible with other components in the vehicle and reduces the adverse effects of the boss on the layout of other components in the vehicle; at the same time, it reduces the probability of the raised portion being deformed and bent due to shear stress perpendicular to the height direction, thereby damaging the battery assembly in the accommodating portion.

[0104] An embodiment of the present disclosure also provides a battery for a vehicle, the vehicle including a support plate, the battery being located on one side of the support plate, the support plate having a raised portion arranged away from the battery, the raised portion forming a accommodating space on a side facing the battery, the battery including a accommodating box and a battery assembly, the battery assembly being accommodated in the accommodating box, the battery assembly including a protruding portion, the protruding portion being used to protrude toward the support plate to extend into the accommodating space, and a projection of a portion of the battery assembly being located outside the projection of the protruding portion in a projection plane perpendicular to a protruding direction of the protruding portion.

[0105] In this way, the battery can better utilize the space formed by the raised portion, making the battery structure more compact, which is beneficial to increasing the capacity of the battery in the vehicle.

[0106] In some embodiments, a placement space is provided in the receiving box, and the battery assembly is arranged in the placement space. One side of the placement space is opened to form a first opening, and the first opening is used for the support plate cover to be arranged thereon. This is beneficial to simplifying the structure of the battery and the vehicle, making the arrangement between the support plate and the battery more compact, and is beneficial to increasing the capacity of the battery when the volume of the vehicle's internal space is constant. At the same time, after the battery is removed from the vehicle, the battery assembly can be directly inspected and repaired through the first opening.

[0107] In some embodiments, the battery includes a temperature control component, which is arranged on the side of the battery assembly facing the first opening. In this way, the temperature control component absorbs heat generated during the operation of the battery assembly, thereby reducing the operating temperature of the battery assembly and improving the safety of battery use. At the same time, the heat transferred to the support plate and radiated into the vehicle interior during the operation of the battery assembly is reduced.

[0108] In some embodiments, the battery includes a first adhesive layer, which is used to bond the support plate to the outer surface of the temperature control assembly. In this way, the first adhesive layer fixes the relative position between the temperature control assembly and the support plate, thereby reducing the probability of friction damage caused by relative movement between the two.

[0109] And / or, the battery includes a third adhesive layer, which is adhered between the temperature control component and the outer surface of the battery component. In this way, the relative position between the temperature control component and the battery component is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0110] In some embodiments, the storage box includes a first box wall, which is located on one side of the storage box, and a portion of the first box wall is used to extend into the storage space. In this way, during the individual transportation of the batteries, the first box wall can protect the battery components and reduce the chance of damage to the battery components due to bumps.

[0111] In some embodiments, the storage box includes a box body and a box cover, the first box wall forms the box cover, one side of the box body is opened to form a second opening, the box cover is arranged on the second opening to form a storage cavity with the box body, and the battery is arranged in the storage cavity. In this way, the storage box is formed by splicing the box body and the box cover, which is convenient for disassembling the storage box according to actual needs, so that the battery assembly can be loaded into the storage phase and the battery assembly can be subsequently inspected and maintained.

[0112] In some embodiments, the first box wall includes a box wall body and a second closing cover, the box wall body is provided with a second through hole, the second through hole is connected to the accommodating cavity, and the second closing cover is detachably connected to the box wall body to cover the second through hole. In this way, the battery assembly located in the accommodating cavity can be inspected and maintained through the second through hole only by disassembling the second closing cover, without disassembling the box body and the box cover, thereby improving the convenience and efficiency of maintenance.

[0113] In some embodiments, the box cover also includes a second seal, which is arranged around the periphery of the second through hole and is clamped between the box wall body and the second closing cover to seal the box wall body and the second closing cover. In this way, the second seal reduces the joint space between the box wall body and the second closing cover and the contact area with the second seal, thereby reducing the probability of foreign matter entering the accommodating cavity and affecting the operation of the battery assembly, extending the service life of the battery, and facilitating the safe use of the battery.

[0114] In some embodiments, the second closure cover is mounted on the box wall body by means of threaded fasteners. Thus, the use of threaded fasteners facilitates disassembly while improving the connection strength between the second closure cover and the box wall body. Alternatively,

[0115] The second closing cover is slidably engaged with the box wall body. Thus, the second closing cover can be slidably engaged with the box wall body, so that the second through hole can be opened or closed more quickly by sliding, thereby improving the convenience of maintenance. Or,

[0116] The second closing cover is hinged to the box wall body. Thus, the second closing cover can be rotated to open or close the second through hole more quickly, thereby improving the convenience of maintenance.

[0117] In some embodiments, on the outer surfaces of opposite sides of a portion of the first box wall, one side surface protrudes to form a boss, and the other side surface forms a receiving portion, at least a portion of the boss is used to extend into the receiving space, and a portion of the battery assembly is located in the receiving portion. In this way, a portion of the battery assembly is located in the receiving space through the receiving portion, so that the battery assembly located in the receiving space is protected by the boss, reducing the probability of direct contact between the battery assembly and the support plate; at the same time, it is beneficial to make the area of ​​the first box wall with the boss consistent with the thickness of the other areas, which is beneficial to reducing the overall size of the first box wall, and then helping to reduce the three-dimensional size of the receiving box, reduce the overall volume of the battery, and facilitate improving the energy density and space utilization of the battery.

[0118] In some embodiments, the box cover includes a box wall body and a second closing cover, the box wall body is provided with a second through hole, the second through hole is connected to the accommodating cavity, the second closing cover is detachably connected to the box wall body to cover the second through hole, and part or all of the boss forms the second closing cover, so that the boss can be easily disassembled and assembled to facilitate inspection and maintenance of the battery assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0119] FIG1 is a schematic diagram of a vehicle according to an embodiment of the present disclosure;

[0120] FIG2 is a schematic diagram of a battery and a support plate in a vehicle according to the first embodiment of the present disclosure;

[0121] FIG3 is a partial enlarged schematic diagram of position A in FIG2 ;

[0122] FIG4 is an exploded schematic diagram of the battery and the support plate of the embodiment in FIG2 ;

[0123] FIG5 is a cross-sectional schematic diagram of the battery and the support plate of the embodiment in FIG2 ;

[0124] FIG6 is a partial enlarged schematic diagram of FIG5 at position B;

[0125] FIG7 is a schematic diagram of a battery and a support plate in a vehicle according to a second embodiment of the present disclosure;

[0126] FIG8 is a partial enlarged schematic diagram of position C in FIG7 ;

[0127] FIG9 is a schematic diagram of the battery and base plate of the embodiment in FIG7 ;

[0128] FIG10 is an exploded schematic diagram of FIG9 ;

[0129] FIG11 is a schematic cross-sectional view of FIG9 ;

[0130] FIG12 is a partial enlarged schematic diagram of position D in FIG11;

[0131] FIG13 is a schematic diagram of a battery in a third embodiment of the present disclosure;

[0132] FIG14 is a schematic cross-sectional view of the EE position in FIG13 ;

[0133] FIG15 is an enlarged schematic diagram of position F in FIG14 ;

[0134] FIG16 is an exploded view of the embodiment in FIG13 ;

[0135] FIG17 is a schematic diagram of a battery cell in a fourth embodiment of the present disclosure;

[0136] FIG18 is a schematic diagram of a battery cell in a fifth embodiment of the present disclosure;

[0137] FIG19 is a schematic diagram of a battery cell in a sixth embodiment of the present disclosure;

[0138] FIG20 is a schematic diagram of a battery cell in a first viewing angle according to a seventh embodiment of the present disclosure;

[0139] FIG21 is a schematic diagram of the battery cell in FIG20 at a second viewing angle;

[0140] FIG22 is a schematic diagram of the battery cell in FIG20 from a third viewing angle;

[0141] FIG23 is a schematic diagram of an explosion of a battery in an eighth embodiment of the present disclosure;

[0142] FIG24 is a schematic diagram of the arrangement of batteries and seats in the ninth embodiment of the present disclosure from a fourth viewing angle;

[0143] FIG25 is a schematic diagram of the arrangement of the embodiment in FIG24 at a fifth viewing angle;

[0144] FIG26 is a schematic diagram of the arrangement of the embodiment in FIG24 at a sixth viewing angle;

[0145] FIG27 is a schematic diagram of the arrangement of batteries and seats in the tenth embodiment of the present disclosure at a seventh viewing angle;

[0146] FIG28 is a schematic diagram of the embodiment in FIG27 at an eighth viewing angle;

[0147] FIG29 is a schematic diagram of the arrangement of batteries and seats in the eleventh embodiment of the present disclosure;

[0148] FIG30 is a schematic diagram of the arrangement of the battery and the seat in the twelfth embodiment of the present disclosure at a ninth viewing angle;

[0149] FIG31 is a schematic diagram of the arrangement of the embodiment in FIG30 at a tenth viewing angle;

[0150] FIG32 is a schematic diagram of the arrangement of the embodiment in FIG31 at an eleventh viewing angle;

[0151] FIG33 is a schematic diagram of the arrangement of batteries and seats in the thirteenth embodiment of the present disclosure at a twelfth viewing angle;

[0152] FIG34 is a schematic diagram of the arrangement of the embodiment in FIG33 at a thirteenth viewing angle;

[0153] FIG35 is a schematic diagram of the arrangement of the embodiment in FIG33 at a fourteenth viewing angle;

[0154] FIG36 is a schematic diagram of a battery and a support plate in a fourteenth embodiment of the present disclosure;

[0155] FIG37 is a schematic cross-sectional view of the GG position in FIG36 ;

[0156] FIG38 is a partial enlarged schematic diagram of FIG37 at position H;

[0157] FIG39 is an exploded view of the embodiment in FIG36 ;

[0158] FIG40 is a partially cutaway enlarged schematic diagram of a battery and a support plate in the fifteenth embodiment of the present disclosure, wherein the cutaway enlarged position is the same as position H in FIG37 ;

[0159] FIG41 is a schematic diagram of a battery and a support plate in the sixteenth embodiment of the present disclosure;

[0160] FIG42 is a schematic cross-sectional view of position II in FIG40;

[0161] FIG43 is a partial enlarged schematic diagram of FIG41 at position J;

[0162] FIG44 is an exploded view of the embodiment in FIG40 ;

[0163] FIG45 is a partially cutaway enlarged schematic diagram of the battery and the support plate in the seventeenth embodiment of the present disclosure, and the cutaway enlarged position is the same as position J in FIG41 .

[0164] DESCRIPTION OF REFERENCE NUMERALS 100 , vehicle; 100 a , interior space; 10 , battery; 11 , storage box; 11 a , storage cavity; 11 b , storage portion; 11 c , first opening; 11d, placement space; 111, first box wall; 1111, boss; 1112, box wall body; 1112a, second through hole; 1112b, mounting step; 1113, second closing cover; 1114, second sealing member; 112, box body; 112a, second opening; 12, battery assembly; 12a, protrusion; 121, battery cell; 1211, shell; 1212, first shell wall; 1212a, first center plane; 1212b, second center plane; 1212c, avoidance groove; 1213, pole; 1214, boss; 1214a, third center plane; 1214b, fourth center plane; 1215, electrode assembly; 1216, body; 1217, pole ear; 1218, adapter; 122, busbar; 123 , sampling component; 124, battery management system; 125, relay; 126, high-voltage distribution unit; 127, high and low voltage wiring harness; 13, first adhesive layer; 14, temperature control component; 15, second adhesive layer; 16, third adhesive layer; 17, first insulating member; 18, second insulating member; 20, seat; 20a, first gap; 20b, second gap; 21, seat; 211, cushion; 212, skeleton; 22, backrest; 23, support leg; 30, controller; 40, motor; 50, support plate; 51, raised portion; 51a, accommodating space; 51b, first raised portion; 51c, second raised portion; 51d, third raised portion; 511, raised body; 511a, first through hole; 512, first closing cover; 513, first sealing member. DETAILED DESCRIPTION

[0165] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of the present disclosure can be combined with each other, and the detailed description in the specific implementation methods should be understood as an explanation of the purpose of the present disclosure and should not be regarded as an improper limitation on the present disclosure.

[0166] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "including" and "having" and any variations thereof in the specification of the present disclosure and the above-mentioned drawings are intended to cover non-exclusive inclusions.

[0167] Currently, new energy batteries are increasingly being used in daily life and industry. They are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields.

[0168] FIG1 is a schematic structural diagram of a vehicle 100 provided in an embodiment of the present disclosure. The vehicle 100 may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. As shown in FIG17 , a battery 10 is provided inside the vehicle 100. The battery 10 may be provided at the bottom, head or tail of the vehicle 100. The battery 10 may be used to power the vehicle 100. For example, the battery 10 may serve as an operating power source for the vehicle 100. The vehicle 100 may further include a controller 30 and a motor 40. The controller 30 is used to control the battery 10 to power the motor 40, for example, for starting, navigating and operating power requirements of the vehicle 100 during driving.

[0169] In some embodiments of the present disclosure, the battery 10 can serve not only as an operating power source for the vehicle 100 , but also as a driving power source for the vehicle 100 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 100 .

[0170] In the embodiments of the present disclosure, the battery may be a battery cell. A battery cell refers to a basic unit that can realize the mutual conversion of chemical energy and electrical energy, and can be used to make a battery module or battery pack, thereby being used to power the vehicle 100. The battery cell may be a secondary battery, which refers to a battery cell that can be recharged to activate the active material after the battery cell is discharged and continue to be used. The battery cell may be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present disclosure are not limited to this.

[0171] A battery cell typically includes an electrode assembly. This assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of a battery cell, active ions (such as lithium ions) are inserted and removed between the positive and negative electrodes. The separator, placed between the positive and negative electrodes, prevents short circuits between the positive and negative electrodes while allowing the active ions to pass through.

[0172] In some embodiments, the battery cell further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. The present disclosure does not specifically limit the type of electrolyte, and the electrolyte may be selected based on needs. The electrolyte may be liquid, gel, or solid.

[0173] In some embodiments, a battery cell may include a housing. The housing is used to encapsulate 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), or an aluminum-plastic film.

[0174] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, a polygonal battery, such as a hexagonal battery, etc. There is no special limitation in the present disclosure.

[0175] In some embodiments, the housing includes an end cap and a shell. The shell has an opening, and the end cap closes the opening to form a sealed space for accommodating the electrode assembly, electrolyte, and other substances. The shell may have one or more openings. One or more end caps may also be provided.

[0176] In some embodiments, the housing is provided with at least one electrode terminal, which is electrically connected to the tab. The electrode terminal may be directly connected to the tab or indirectly connected to the tab via an adapter component. The electrode terminal may be provided on an end cap or on the housing. In some embodiments, the housing is provided with a pressure relief mechanism. This pressure relief mechanism is used to relieve internal pressure within the battery cell.

[0177] In the embodiments of the present disclosure, the battery may also be a single physical module (e.g., a battery module or battery pack) including one or more battery cells to provide higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, in parallel, or in hybrid via a busbar.

[0178] In the description of the embodiments of the present disclosure, technical terms such as "first," "second," and "third" are used solely to distinguish different objects and should not be understood to indicate or imply relative importance or to implicitly specify the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present disclosure, "plurality" means more than two, unless otherwise specifically defined.

[0179] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0180] In the description of the embodiments of the present disclosure, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0181] In the description of the embodiments of the present disclosure, for ease of explanation, as indicated by the arrows in Figures 2, 5, 7, 11, 13, 14, 24, 36, 37, 41, and 42, the direction indicated by arrow X is the "battery height direction" and the "vehicle height direction," the direction indicated by x1 is the "top," and the direction indicated by x2 is the "bottom," the direction indicated by arrow Y is the "battery length direction" and the "vehicle length direction," and the direction indicated by arrow Z is the "battery width direction" and the "vehicle width direction." As indicated by the arrows in Figures 17 to 22, the direction indicated by arrow a is the "battery cell length direction" and the "first housing wall length direction," the direction indicated by arrow b is the "battery cell width direction" and the "first housing wall width direction," and the direction indicated by arrow c is the "battery cell height direction."

[0182] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal connectivity between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure based on specific circumstances.

[0183] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0184] The following describes the embodiments of the present disclosure in detail.

[0185] In the related art, a support plate is provided in a vehicle, and a vehicle interior space is formed on the top side of the support plate. The vehicle interior space is used to place various components, cargo, and accommodate passengers in the vehicle, and the support plate plays a bearing role.

[0186] The battery is arranged on the side of the support plate facing away from the interior space of the vehicle. In this way, the support plate can serve the purpose of separating the battery from the interior space, thereby reducing the chance of the battery causing damage to people and objects in the interior space if a problem occurs. At the same time, the support plate has a large area, which can provide a larger layout area for the battery, so as to arrange batteries with larger capacity.

[0187] Due to the different shapes and sizes of the components installed in the vehicle interior, unused idle space is formed in the vehicle interior, which has an adverse effect on the space utilization rate of the vehicle interior; at the same time, in order to increase the battery capacity of the vehicle, under the inconvenience of the total volume of the vehicle, it is necessary to further improve the space utilization rate to increase the battery capacity.

[0188] On this basis, an embodiment of the present disclosure provides a vehicle, which provides a raised portion on the bottom plate so that a portion of the battery is located in the raised portion, thereby reducing the idle space in the vehicle interior through the raised portion, thereby improving the utilization rate of the space in the vehicle and facilitating increasing the battery capacity.

[0189] Specifically, referring to FIG. 2 to FIG. 12 , an embodiment of the present disclosure provides a vehicle 100 , which includes a support plate 50 and a battery 10 .

[0190] The support plate 50 is formed with a raised portion 51 , and the raised portion 51 is formed with a receiving space 51 a .

[0191] The battery 10 is disposed on a side of the support plate 50 where the accommodation space 51 a is provided. The battery 10 includes a accommodation box 11 and a battery assembly 12 . The battery assembly 12 is accommodated in the accommodation box 11 , and a portion of the battery assembly 12 extends into the accommodation space 51 a .

[0192] The support plate 50 is located at the bottom of the vehicle 100. Together with other components within the vehicle 100, such as the vehicle body, the support plate 50 forms an interior space 100a. The interior space 100a can be used to house functional components within the vehicle 100, such as the controller 30 and the motor, as well as interior trim, and can also be used to carry passengers and cargo. In other words, the interior space 100a on one side of the support plate 50 can be the equipment compartment, passenger compartment, or storage compartment of the vehicle 100. For example, in an embodiment where the interior space 100a on one side of the support plate 50 is the passenger compartment of the vehicle 100, the support plate 50 forms the floor of the passenger compartment.

[0193] The raised portion 51 protrudes from the top surface of the other portions of the support plate 50 in the thickness direction of the support plate 50 .

[0194] The thickness direction of the support plate 50 may be the height direction of the vehicle 100 .

[0195] The raised portion 51 is located on a side of the support plate 50 facing the vehicle interior space 100 a . That is, the raised portion 51 utilizes the idle space in the vehicle interior space 100 a by rising toward the vehicle interior space 100 a .

[0196] The raised portion 51 encloses and forms an accommodation space 51 a.

[0197] The support plate 50 is provided with a side of the accommodating space 51 a , which may be the side of the support plate 50 facing away from the vehicle interior space 100 a , referring to FIG. 2 and FIG. 3 .

[0198] The containing box 11, that is, the containing box 11 forming the outer contour of the battery 10, is used to accommodate other components of the battery 10 except the containing box 11, thereby providing installation and fixing space for other components. At the same time, it plays a role of sealing and protection, reducing the adverse effects of collisions with external objects and entry of foreign matter on the normal operation of the battery 10 during transportation and use of the battery 10.

[0199] The battery assembly 12 is a variety of components in the battery 10 used to realize the charging and discharging functions of the battery 10.

[0200] The battery assembly 12 is located in the housing box 11 so that the housing box 11 can protect and seal the battery assembly 12 , allowing the battery assembly 12 to perform charge and discharge functions normally.

[0201] A portion of the battery assembly 12 extends into the accommodating space 51a, that is, one side of the accommodating space 51a is open so that the battery 10 can enter the accommodating space 51a through the open position of the accommodating space 51a until a portion of the battery assembly 12 enters the accommodating space 51a, so that the arrangement of the battery assembly 12 can utilize the space within the raised portion 51.

[0202] The vehicle 100 in the embodiment of the present disclosure, on the one hand, by providing a raised portion 51 on the support plate 50, enables the raised portion 51 to utilize the idle space of the vehicle interior space 100a, thereby improving the utilization of the interior space of the vehicle 100 and making the structure of the vehicle 100 more compact; on the other hand, the raised portion 51 forms an accommodating space 51a, which is beneficial to increase the space in the vehicle 100 that can be used to arrange the battery assembly 12, and further extends a part of the battery assembly 12 into the accommodating space 51a, thereby facilitating an increase in the capacity of the battery 10, or, when the capacity of the battery 10 is constant, facilitating a reduction in the overall size of the vehicle 100.

[0203] In some embodiments, the battery 10 is disposed below the support plate 50 , such that the battery 10 forms a portion of the chassis of the vehicle 100 , and the surface of the battery 10 forms a portion of the outer contour of the vehicle 100 .

[0204] It is understandable that, due to the influence of the type, size, number and arrangement of various components within the battery assembly 12, the outer contour of the battery assembly 12 is not regular.

[0205] In some embodiments, referring to FIG. 5 , FIG. 6 , FIG. 11 , and FIG. 12 , the battery assembly 12 includes a protruding portion 12 a , and at least a portion of the protruding portion 12 a is accommodated in the accommodation space 51 a .

[0206] The protruding portion 12a refers to a portion of the outer contour surface formed by the battery assembly 12 that protrudes from other adjacent portions thereof. The protruding portion 12a may be one or more components of the battery assembly 12, or may be a partial structure of a component of the battery assembly 12.

[0207] In this way, it is beneficial to make the shape of the outer contour of the part of the battery assembly 12 located outside the accommodating space 51a regular, and then it is beneficial to make the shape of the corresponding accommodating box 11 covering this part regular, and it is beneficial to make the shape of the outer contour part of the vehicle 100 formed by the accommodating box 11 regular, which is beneficial to reducing wind resistance. On the one hand, it is beneficial to reduce the size of the accommodating box 11 and make the structure of the battery 10 more compact; on the other hand, it is beneficial to make the outer contour part of the vehicle 100 formed by the accommodating box 11 flatter, which is beneficial to reducing the wind resistance coefficient of the vehicle 100 and increasing the ground clearance of the vehicle 100, reducing the situation where the accommodating box 11 increases wind resistance during driving of the vehicle 100 and collides with foreign objects on the road to cause damage to the battery 10.

[0208] In some embodiments, referring to FIG. 5 , FIG. 6 , FIG. 11 and FIG. 12 , in a projection plane perpendicular to the protrusion direction of the protrusion 51 , a portion of the projection of the battery assembly 12 is located outside the projection of the accommodation space 51 a .

[0209] A portion of the projection of the battery assembly 12 is located outside the projection of the accommodation space 51 a , that is, a portion of the battery assembly 12 is located in the accommodation space 51 a , and another portion is located outside the accommodation space 51 a .

[0210] In this way, the battery assembly 12 can better utilize the space on one side of the support plate 50 , thereby increasing the capacity of the battery 10 .

[0211] The specific manner of forming the protruding portion 12a is not limited.

[0212] In some embodiments, referring to FIG. 17 to FIG. 20 , the battery assembly 12 further includes a plurality of battery cells 121 . The battery cells 121 include a housing 1211 having a first housing wall 1212 . The protruding portion 12 a is disposed on the first housing wall 1212 .

[0213] The housing 1211 is used to enclose a space for accommodating components related to the electrochemical reaction in the battery cell 121 .

[0214] The shell wall refers to the physical structure between the walls that enclose the space inside the shell 1211 and extend from the outer surface of the shell 1211 in a direction away from the enclosed space.

[0215] The protruding portion 12a is provided on the first shell wall 1212, which means that the protruding portion 12a includes an area on the first shell wall 1212 that protrudes from the other parts of the first shell wall 1212. In other words, a portion of the first shell wall 1212 forms the protruding portion 12a. The specific type of this portion is not limited, for example, part or all of the protrusion 1214 formed on the outer surface of the first shell wall 1212 described below; it can also be other components of the battery assembly 12 other than the battery cells 121, such as the busbar 122 and the sampling member 123 described below, part or all of which are located in the protruding portion 12a, and the portion is provided on the first shell wall 1212. It can also be a combination of the above two situations, for example, the protruding portion 12a includes the protrusion 1214 described above, the terminal 1213 provided on the protrusion 1214 described below, and the busbar 122 electrically connected to the terminal 1213.

[0216] This is beneficial to increasing the volume of the battery cell 121, and to making the space in the storage box 11 adapt to the battery cells 121 with different outer contours, so that the battery cells 121 with different outer contours can be arranged more compactly in the storage box 11, thereby improving the energy density of the battery 10.

[0217] In some embodiments, referring to Figures 6, 12, 14, 15, 40 and 45, the battery assembly 12 also includes a bus 122, and the battery cell 121 also includes a pole 1213, the pole 1213 is arranged on the first shell wall 1212, the bus 122 electrically connects the poles 1213 of the two battery cells 121, the protruding portion 12a includes the bus 122, and at least a portion of the bus 122 is located in the accommodating space 51a.

[0218] The busbar 122 is used to electrically connect the plurality of battery cells 121 so as to realize series or parallel connection between the battery cells 121 .

[0219] The pole 1213 is provided on the housing 1211 and is used to electrically connect to the components that realize electrochemical reactions in the battery cell 121 so as to output or input electric energy into or into the battery cell 121 through the pole 1213 .

[0220] The protruding portion 12 a includes at least a portion of the current bus 122 , that is, a portion or the entirety of the current bus 122 is located in the accommodation space 51 a .

[0221] In this way, it is beneficial to increase the space for arranging the busbar 122 by utilizing the accommodating space 51a, thereby further improving the space utilization rate of the vehicle 100. On the one hand, it is beneficial to increase the number of battery cells 121 that can be electrically connected to the busbar 122, thereby helping to improve the capacity of the battery 10; on the other hand, it is beneficial to arrange different battery cells 121 more compactly and regularly in the accommodating box 11, thereby helping to improve the energy density of the battery 10.

[0222] It should be noted that the specific structure of the busbar 122 and the manner of realizing series and parallel connection between the battery cells 121 have been applied in the relevant technology and will not be described in detail here.

[0223] It is understandable that the pole 1213 can be flush with the outer surface of the shell 1211 so that the outer surface of the first shell wall 1212 is a complete surface; alternatively, as shown in FIG. 15 , the pole 1213 protrudes from the outer surface of the first shell wall 1212 .

[0224] It is understandable that the size of the housing 1211 has a direct impact on the size of the components that implement the electrochemical reaction within the battery cell 121 , thereby affecting the energy density of the battery cell 121 .

[0225] In some embodiments, referring to FIG. 6 , FIG. 12 , FIG. 14 , and FIG. 15 , the pole 1213 is at least partially accommodated in the accommodation space 51 a .

[0226] That is, part or all of the pole 1213 is located in the accommodation space 51 a , and part or all of the housing 1211 is located in the accommodation space 51 a .

[0227] In this way, the space for arranging the pole 1213 is increased by utilizing the accommodation space 51 a , which is conducive to arranging a battery with a larger capacity in the vehicle 100 ; at the same time, the space utilization rate of the vehicle 100 is further improved.

[0228] In some embodiments, referring to Figures 6, 17 to 22, 40, and 45, the first housing wall 1212 includes a protrusion 1214, the protruding portion 12a includes the protrusion 1214, and at least a portion of the protrusion 1214 is located within the accommodating space 51a. In other words, the protrusion 1214 is a portion of the first housing wall 1212 and is partially or entirely located within the accommodating space 51a.

[0229] Providing the protrusion 1214 is beneficial for increasing the space inside the battery cell 121 , increasing the volume inside the battery cell 121 for accommodating components for electrochemical reactions, and increasing the energy density of the battery cell 121 .

[0230] In this way, by locating the protrusion 1214 in the accommodating space 51a, the space inside the battery cell 121 is further increased, thereby helping to improve the capacity of the battery 10. At the same time, the support plate makes the structure inside the vehicle 100 more compact, thereby improving the utilization rate of the internal space of the vehicle 100.

[0231] In some embodiments, referring to FIG. 6 , FIG. 12 , FIG. 14 , FIG. 15 , and FIG. 17 to FIG. 20 , a pole 1213 is provided on the protrusion 1214 , that is, the pole 1213 passes through the protrusion 1214 .

[0232] This is beneficial to improving the utilization efficiency of the space within the protrusion 1214 of the accommodating space 51a, making the arrangement between the battery 10 and the support plate 50 more compact, improving the energy density and space utilization of the battery 10, and improving the utilization of the internal space of the vehicle 100.

[0233] In some embodiments, referring to FIG. 17 , FIG. 19 and FIG. 20 , there are two poles 1213 with opposite polarities, and the two poles 1213 are disposed on the same protrusion 1214 .

[0234] One pole 1213 serves as the positive electrode of the battery cell 121 , and one pole 1213 serves as the negative electrode of the battery cell 121 .

[0235] In this way, it is advantageous to only need to manufacture one protrusion 1214 to provide a mounting position for the two poles 1213 , which is advantageous to reduce the manufacturing steps of the first shell wall 1212 and lower the production cost.

[0236] In some embodiments, referring to FIG. 19 and FIG. 20 , the protrusion 1214 is located at one end of the first shell wall 1212 along the length direction of the first shell wall 1212 .

[0237] The length direction of the first casing wall 1212 refers to the direction in which the largest dimension of the three-dimensional dimensions of the outer contour of the first casing wall 1212 extends when the outer contour of the first casing wall 1212 is a rectangular parallelepiped.

[0238] In this way, the area of ​​the first shell wall 1212 located at the other end away from the protrusion 1214 along its length direction can be maximized, thereby facilitating the arrangement of other components with larger outer contour dimensions in the battery 10, providing convenience for the arrangement of other components in the battery 10, and at the same time, helping to reduce the volume of the battery 10, improve the space utilization inside the battery 10, make the volume of the battery 10 more compact, and help to increase the total capacity of the battery 10 in the vehicle 100.

[0239] In some embodiments, referring to FIG. 18 , there are two poles 1213 with opposite polarities, and the two poles 1213 are respectively disposed on the two protrusions 1214 .

[0240] In this way, on the one hand, it is beneficial to reduce the volume of a single protrusion 1214, making the structure more compact, which is beneficial to reducing the volume of the battery cell 121, thereby arranging more battery cells 121 in the battery 10 and increasing the total capacity of the battery 10 in the vehicle 100; on the other hand, it is beneficial to space the two poles 1213, reducing the risk of short circuit between the two poles 1213, and improving the safety of the battery cell 121.

[0241] In some embodiments, referring to FIG. 18 , two protrusions 1214 are respectively located at one end of the first shell wall 1212 along the length direction of the first shell wall 1212 .

[0242] In this way, it is beneficial to form a larger flat area in the portion of the first shell wall 1212 between the two protrusions 1214, and then when the internal volume of the battery 10 is certain, it is convenient to arrange other components with larger outer contour dimensions in the battery 10 in this area, providing convenience for the arrangement of other components in the battery 10. At the same time, it is beneficial to reduce the volume of the battery 10, improve the space utilization inside the battery 10, make the volume of the battery 10 more compact, and help to increase the total capacity of the battery 10 in the vehicle 100.

[0243] In some embodiments, referring to FIG. 17 and FIG. 21 , the protrusion 1214 is located at the center of the first shell wall 1212 along the length direction of the first shell wall 1212 .

[0244] That is, the first center plane 1212 a of the first shell wall 1212 along the length direction thereof coincides with the third center plane 1214 a of the protrusion 1214 along the length direction of the battery cell 121 .

[0245] The first center plane 1212 a refers to a reference plane that is perpendicular to the length direction of the first shell wall 1212 and is located at a half-dimension of the first shell wall 1212 along the length direction.

[0246] The third center plane 1214a refers to a reference plane that is perpendicular to the length direction of the protrusion 1214 and is located at a half-size position of the protrusion 1214 along its length direction.

[0247] This helps to make the structure of the battery cell 121 symmetrical about the first center plane 1212 a, and facilitates adjustment of the placement directions of the multiple battery cells 121121 when arranged in the battery 10, thereby improving the adaptability of the battery cells 121 in the battery 10.

[0248] It should be noted that due to numerous factors in the manufacturing, assembly, and measurement processes, the first center plane 1212a of the first shell wall 1212 along its length and the third center plane 1214a of the protrusion 1214 along the length of the battery cell 121 may not coincide with the designed dimensions after the battery cell 121 is manufactured. Therefore, when measuring the coincidence of the first and third center planes 1212a, 1214a, a certain predetermined tolerance is considered. Specifically, if the distance between the first and third center planes 1212a, 1214a along the length of the first shell wall 1212 is within a predetermined tolerance, the two are considered to be coincident. The specific value of the predetermined tolerance depends on the design requirements.

[0249] In some embodiments, referring to FIG. 17 to FIG. 20 , the center position of the first shell wall 1212 along the width direction thereof coincides with the center position of the protrusion 1214 along the width direction of the first shell wall 1212 .

[0250] That is, the second center plane 1212 b of the first shell wall 1212 along the width direction thereof coincides with the fourth center plane 1214 b of the protrusion 1214 along the width direction of the first shell wall 1212 .

[0251] Referring to FIG. 21 , the second center plane 1212 b is a reference plane perpendicular to the width of the first housing wall 1212 and located at half the width of the first housing wall 1212. The fourth center plane 1214 b is a reference plane perpendicular to the width of the first housing wall 1212 and located at half the width of the protrusion 1214.

[0252] In this way, it is further beneficial to form a larger flat area in the width direction of the first shell wall 1212, which is convenient for arranging other components with larger outer contour dimensions in the battery 10, providing convenience for the arrangement of other components in the battery 10. At the same time, it is beneficial to reduce the volume of the battery 10, improve the space utilization inside the battery 10, make the volume of the battery 10 more compact, and help increase the total capacity of the battery 10 in the vehicle 100.

[0253] It should be noted that due to numerous factors in the manufacturing, assembly, and measurement processes, the second center plane 1212b and the fourth center plane 1214b may not coincide with the designed dimensions after the battery cell 121 is manufactured. Therefore, the actual measurement of whether the second center plane 1212b and the fourth center plane 1214b coincide is based on a predetermined tolerance range. In other words, if the spacing between the second center plane 1212b and the fourth center plane 1214b along the width of the first shell 1212 is within a predetermined tolerance range, the two are considered to coincide. The specific value of the predetermined tolerance range is determined based on design requirements. In some embodiments, referring to Figures 17, 18, and 20, the two terminals 1213 are spaced apart along the length of the first shell 1212.

[0254] In this way, the distance between the two protrusions 1214 is increased as much as possible, which is conducive to forming a larger flat area in the portion of the first shell wall 1212 between the two protrusions 1214. Furthermore, when the internal volume of the battery 10 is constant, other components with larger outer contour dimensions in the battery 10 are conveniently arranged in this area, providing convenience for the arrangement of other components in the battery 10. At the same time, it is conducive to reducing the volume of the battery 10 and improving the space utilization inside the battery 10, which is conducive to improving the utilization of the internal space of the vehicle 100.

[0255] In some embodiments, referring to FIG. 19 , two poles 1213 are spaced apart along the width direction of the first shell wall 1212 .

[0256] The width direction of the first shell wall 1212 refers to a direction perpendicular to the length direction in the three-dimensional dimension of the outer contour of the first shell wall 1212 when the outer contour of the first shell wall 1212 is a rectangular parallelepiped.

[0257] It is understandable that the dimension of the first shell wall 1212 along its width direction is smaller than its dimension along its length direction. The battery 10 has multiple battery cells 121, and the arrangement of the multiple battery cells 121 along the width direction is conducive to reducing the maximum dimension of the outer contour formed by the multiple battery cells 121.

[0258] In this way, the two poles 1213 are arranged along the width direction of the first shell wall 1212, which is beneficial to shortening the distance between the poles 1213 of different polarities between two adjacent battery cells 121, facilitating electrical connection between two different adjacent battery cells 121, and further beneficial to reducing the size of the battery 10.

[0259] In some embodiments, referring to Figures 40 and 45, the battery cell 121 also includes an electrode assembly 1215, which is accommodated in the shell 1211. A portion of the first shell wall 1212 is recessed to form an avoidance groove 1212c, which is located on the side of the protrusion 1214 close to the electrode assembly 1215, and a portion of the electrode assembly 1215 is located in the avoidance groove 1212c.

[0260] The shell 1211 provides an accommodating space 51 a for the electrode assembly 1215 and plays a protective role. At the same time, the shell 1211 is used for the movement of electrolyte to generate an electrochemical reaction between the electrolyte and the electrode assembly 1215.

[0261] An escape area is provided on the first shell wall 1212 . The escape area is recessed on one side toward the electrode assembly 1215 to form an escape groove 1212 c , and protrudes on the side away from the electrode assembly 1215 to form a protrusion 1214 . The protrusion 1214 is correspondingly provided with the escape groove 1212 c .

[0262] A portion of the electrode assembly 1215 is located in the avoidance groove 1212c, so that when the size of the first shell wall 1212 is constant, the first shell wall 1212 can be as close to the electrode assembly 1215 as possible, thereby effectively reducing the volume inside the shell 1211 while allowing as much of the electrode assembly 1215 as possible to extend into the avoidance groove 1212c, which is beneficial to reducing the redundant volume inside the battery cell 121, making the space inside the battery cell 121 more compact, thereby helping to reduce the total volume and outer contour dimensions of the battery cell 121, and further helping to increase the number of battery cells 121 that can be accommodated in the battery 10, thereby improving the energy density and space utilization of the battery 10.

[0263] It is understandable that the battery cell 121 is provided with at least a partial installation cavity for placing the electrode assembly 1215 , and the installation cavity is communicated with the avoidance groove 1212 c .

[0264] In some embodiments, referring to FIG. 15 , FIG. 40 and FIG. 45 , the electrode assembly 1215 includes a main body 1216 and a tab 1217 . The tab 1217 is disposed on a side edge of the main body 1216 and is electrically connected to the main body 1216 . At least a portion of the tab 1217 is located in the avoidance groove 1212 c .

[0265] The main body 1216, i.e., the bare cell, is formed by stacking or winding a plurality of electrode sheets. The tabs 1217 form the positive or negative electrode in the electrode assembly 1215.

[0266] By partially or completely positioning the tab 1217 in the avoidance groove 1212 c , the volume of the main body 1216 in the battery cell 121 is further increased, thereby facilitating the improvement of the energy density of the battery cell 121 .

[0267] It can be understood that the tab 1217 protrudes from one side surface of the main body 1216 .

[0268] It is understandable that the main body 1216 directly participates in the electrochemical reaction, and the size of the main body 1216 is directly related to the capacity of the battery cell 121 .

[0269] In some embodiments, referring to Figures 15, 40 and 45, at least part of the tab 1217 is located in the accommodating space 51a. This is beneficial to increase the space for arranging the tab 1217, thereby allowing more space to be used to arrange the main body 1216, which is beneficial to increasing the capacity of the battery cell 121.

[0270] In some embodiments having a pole 1213 , as shown in FIG40 and FIG45 , the electrode assembly 1215 further includes a transition piece 1218 , through which the tab 1217 is electrically connected to the pole 1213 , and at least a portion of the transition piece 1218 is located in the accommodation space 51 a .

[0271] The adapter 1218 is used to electrically connect the pole 1213 and the tab 1217 to meet the requirements of electrical connection between poles 1213 and tabs 1217 of different sizes.

[0272] In this way, part or all of the adapter plate 1218 is located in the accommodating space 51a, which is conducive to increasing the space for arranging the adapter plate 1218, thereby allowing more space to be used to arrange the main body 1216, which is conducive to increasing the capacity of the battery cell 121.

[0273] It is understandable that in order to accommodate the charging and discharging functions of the battery cell 121, other auxiliary components are also provided in the battery 10, and the arrangement of these auxiliary components also has an important impact on better utilization of the space within the accommodating space 51a.

[0274] In some embodiments, referring to FIG. 14 , FIG. 15 , FIG. 16 , FIG. 23 , FIG. 38 , FIG. 39 , FIG. 43 , and FIG. 44 , the battery assembly 12 further includes a sampling member 123 , at least a portion of which is accommodated in the accommodation space 51 a .

[0275] The sampling component 123 is used to obtain parameter information such as voltage and temperature of each component in the battery 10, such as the battery cell 121, and transmit the obtained parameter information to the battery management system 124 (BMS) so that the battery management system 124 can reasonably implement different control strategies to ensure that the battery 10 is charged and discharged safely and efficiently.

[0276] That is, part or all of the sampling member 123 is located in the accommodating space 51 a.

[0277] In this way, the space for arranging the sampling member 123 is increased by utilizing the accommodation space 51 a , thereby increasing the total volume of the battery 10 , and further increasing the capacity of the battery in the vehicle 100 .

[0278] It should be noted that the specific structure of the sampling component 123 and the method for sampling different parameter information have been applied in related technologies and will not be described in detail here.

[0279] In some embodiments, referring to FIG. 23 , the battery assembly 12 further includes a battery management system 124 , and at least a portion of the battery management system 124 is accommodated in the accommodation space 51 a .

[0280] The battery management system 124 is used to manage and control each electrical device in each battery 10, monitor the operating status of the battery 10, and adopt appropriate control strategies according to its operating status to prevent the battery 10 from overcharging and over-discharging, thereby extending the service life of the battery 10.

[0281] In this way, it is beneficial to increase the space for arranging the battery management system 124 by utilizing the accommodating space 51a, thereby increasing the total volume of the battery 10, further improving the capacity of the battery 10 in the vehicle 100, and supporting the accommodating space 51a plate, thereby improving the space utilization rate of the space in the vehicle 100, and making the shape of the part of the battery 10 located outside the accommodating space 51a more regular.

[0282] In some embodiments, referring to FIG. 23 , the battery assembly 12 further includes a relay 125 , at least a portion of which is accommodated in the accommodation space 51 a .

[0283] When the battery 10 in the vehicle 100 needs to be charged or discharged, the relay 125 responds to the instruction of the power system to open or close the connection between the battery 10 and other electrical devices in the vehicle 100 to achieve the transmission or interruption of electric energy.

[0284] In this way, it is beneficial to increase the space for arranging the relay 125 by utilizing the accommodating space 51a, thereby increasing the total volume of the battery 10, further improving the capacity of the battery 10 in the vehicle 100, and improving the space utilization rate of the space in the vehicle 100, which is beneficial to making the shape of the part of the battery 10 located outside the accommodating space 51a more regular.

[0285] In some embodiments, referring to FIG. 23 , the battery assembly 12 further includes a high-voltage power distribution unit 126 , at least a portion of which is accommodated in the accommodation space 51 a .

[0286] The high-voltage power distribution unit 126 is used to monitor the high-voltage connection status and insulation status of the battery 10 in real time, so as to manage the high-voltage power safety in the battery 10 .

[0287] In this way, it is beneficial to increase the space for arranging the high-voltage distribution unit 126 by utilizing the accommodating space 51a, thereby increasing the total volume of the battery 10, and further improving the capacity of the battery 10 in the vehicle 100. The accommodating space 51a supports the plate, improves the space utilization rate of the space in the vehicle 100, and makes the shape of the part of the battery 10 located outside the accommodating space 51a more regular.

[0288] In some embodiments, referring to FIG. 23 , the battery assembly further includes a high- and low-voltage wiring harness 127 , at least a portion of which is accommodated in the accommodation space 51 a .

[0289] The high and low voltage wiring harness 127 is used to electrically connect various components in the battery assembly 12 to transmit high and low voltage currents and realize the transmission of electrical energy and control signals.

[0290] In this way, it is beneficial to increase the space for arranging the high and low voltage wire harnesses 127 by utilizing the accommodating space 51a, reduce the bending of the high and low voltage wire harnesses 127, increase the total volume of the battery 10, and further improve the capacity of the battery 10 in the vehicle 100.

[0291] In some embodiments, referring to FIG. 21 , the length of the battery cell 121 is not less than 350 mm (millimeter), that is, L1 ≥ 350 mm, which is conducive to the electrochemical reaction of the electrode assembly and the electrolyte in the battery cell 121 to store or release sufficient electrical energy, and is conducive to the total electrical energy in the battery 10 meeting the demand.

[0292] The length of the battery cell 121 may be any specific value, for example, 400 mm, 500 mm, 600 mm, 700 mm, 800 mm, 900 mm, 1000 mm, 1200 mm, 1500 mm, etc.

[0293] The specific method of measuring the length of the battery cell 121 is not limited. For example, at room temperature of 25°C (Celsius), the main scale and vernier of a vernier caliper are respectively placed against the two ends of the battery cell 121 along the length direction, and the data shown on the vernier caliper are read to obtain the length of the battery cell 121.

[0294] In some embodiments, referring to FIG. 21 , the width of the battery cell 121 ranges from 5 mm to 50 mm, that is, 5 mm ≤ L2 ≤ 50 mm. This makes it easier to carry the battery cell 121 and better adapts to the sizes of the receiving boxes 11 of different sizes.

[0295] The specific value of the width of the battery cell 121 is not limited, for example, 5 mm, 20 mm, 30 mm, 35 mm, 40 mm, 50 mm, etc.

[0296] The specific method of measuring the width dimension of the battery cell 121 is not limited. For example, at room temperature of 25°C (Celsius), the main scale and vernier of a vernier caliper are respectively placed against the two ends of the battery cell 121 along the width direction, and the data shown on the vernier caliper are read to obtain the width dimension of the battery cell 121.

[0297] In some embodiments, referring to FIG22 , the height of the battery cell 121 ranges from 80 mm to 200 mm, i.e., 80 mm ≤ L3 ≤ 200 mm. This makes the battery cell 121 easier to carry and better adaptable to the dimensions of the container 11 of different sizes.

[0298] The specific value of the height of the battery cell 121 is not limited, for example, 80 mm, 100 mm, 120 mm, 150 mm, 180 mm, 200 mm, etc.

[0299] There is no limitation on the specific method for measuring the height dimension of the battery cell 121. For example, at room temperature of 25°C (Celsius), the battery cell 121 is placed on a measurement reference plane so that the height direction of the battery cell 121 is perpendicular to the measurement reference plane. The zero scale of the ruler is aligned with one end of the battery cell 121 along the height direction, and the scale aligned with the other end of the battery cell 121 along the height direction is read to obtain the height dimension of the battery cell 121.

[0300] In some embodiments, referring to Figure 12 , the height of the protruding portion 12a within the accommodating space 51a ranges from 2 mm to 10 mm. In other words, referring to Figure 12 , 2 mm ≤ H1 ≤ 10 mm.

[0301] The height of the protruding portion 12 a refers to the dimension of the protruding portion 12 a along the height direction of the battery 10 .

[0302] In this way, the space utilization rate in the storage space 51 a can be improved.

[0303] The specific value of the height dimension of the protruding portion 12a is not limited, for example, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.

[0304] In some embodiments, referring to FIG. 2 , FIG. 7 , and FIG. 24 to FIG. 35 , the vehicle 100 further includes a seat 20 . The seat 20 is disposed on a side of the support plate 50 where the raised portion 51 is formed.

[0305] The seat 20 is used for passengers of the vehicle 100 to sit and place items.

[0306] That is to say, the interior space 100a located on the side of the support plate 50 where the raised portion 51 is provided is the passenger compartment in the vehicle 100. In a passenger car, the passenger compartment has the largest volume of space in the vehicle 100. Correspondingly, the support plate 50 is the largest in size, and the area that can be used to arrange the battery 10 is also the largest, which is beneficial to increasing the capacity of the battery 10 in the vehicle 100.

[0307] In this way, it is beneficial to increase the volume of the battery 10 in the vehicle 100, and thus it is beneficial to increase the capacity of the battery 10 and improve the cruising range of the vehicle 100; at the same time, it is beneficial to make the flat box wall of the storage box 11 face the ground side, which is beneficial to make the bottom surface of the vehicle 100 flatter, reduce the drag coefficient of the vehicle 100 and increase the ground clearance of the vehicle 100, and reduce the situation in which the raised portion 51 increases the wind resistance of the vehicle 100 and collides with foreign objects on the road during driving, thereby reducing the possibility of damage to the battery 10 due to collision.

[0308] The drag coefficient is a parameter used to describe the air resistance experienced by an object in air. Its value reflects the degree to which the object's shape affects air flow. A higher drag coefficient indicates greater air resistance encountered by the object during travel. Therefore, the drag coefficient directly impacts the energy consumption of vehicle 100.

[0309] Ground clearance refers to the distance between the ground and the rigid objects at the bottom of the vehicle body when the vehicle 100 is driving. Its size is directly related to the passability of the vehicle 100.

[0310] In some embodiments, referring to FIG. 24 to FIG. 35 , in a projection perpendicular to the height direction of the vehicle 100 , a portion or all of the projection of the raised portion 51 is located within the projection range of the seat 20 .

[0311] That is, at least a portion of the raised portion 51 is located in a space below the contact surface of the seat 20 when the occupant is seated.

[0312] It is understandable that when an occupant sits on seat 20, due to the occupant's sitting posture, the space below the contact surface with the seat 20, including the seat 20 itself and the space below the seat 20, will not be accessible or will be difficult for the occupant's limbs to touch.

[0313] In this way, the raised portion 51 utilizes the space under the seat 20, reducing the probability of the passenger touching the raised portion 51 during riding, thereby reducing the encroachment of the raised portion 51 on the passenger's normal activity space, improving the user experience, and improving the space utilization rate within the vehicle 100.

[0314] It is understandable that there may be multiple seats 20 , and the position of the raised portion 51 is adapted to the arrangement relationship between the multiple seats 20 .

[0315] In some embodiments, referring to Figures 24 to 26, 29, and 33, the number of seats 20 is at least two, a first gap 20a is formed between two adjacent seats 20 along the width direction of the vehicle 100, and the raised portion 51 includes a first raised portion 51b, and part or all of the first raised portion 51b is located in the first gap 20a.

[0316] The width direction of the vehicle 100 refers to the direction of the dimension perpendicular to the length direction and the gravity direction among the three-dimensional dimensions of the vehicle 100 .

[0317] The direction of gravity is the vertical direction.

[0318] It is understandable that when an occupant sits on the seat 20 , it is difficult for the occupant's legs to enter the first gap 20 a due to the occupant's sitting posture.

[0319] In this way, the first raised portion 51b can utilize the space in the first gap 20a, thereby increasing the volume of the battery 10 while reducing the probability of the passenger coming into contact with the first raised portion 51b during riding, reducing the interference of the first raised portion 51b with the normal activities of the passenger, and improving the space utilization rate within the vehicle 100.

[0320] It is understandable that other equipment in the vehicle 100, such as armrests, a vehicle refrigerator, a storage box, etc., can also be arranged in the first gap 20a to improve the space utilization in the vehicle and enhance the user experience.

[0321] In some embodiments, a projection of a partial area of ​​the first raised portion 51 b is located within the projection range of the seat 20 , and another partial area is located in the first gap 20 a .

[0322] In some embodiments, referring to Figures 24, 26, and 33, there are multiple seats 20, and the multiple seats 20 are divided into at least two rows spaced apart along the length direction of the vehicle 100, and the first raised portion 51b extends along the length direction of the vehicle 100 to the bottom of another adjacent row of seats 20.

[0323] The longitudinal direction of the vehicle 100 refers to the direction of the maximum dimension among the three-dimensional dimensions of the vehicle 100. Generally, the longitudinal direction of the vehicle 100 is also the forward or backward direction of the vehicle 100 when traveling in a straight line.

[0324] This is beneficial for increasing the volume of the first raised portion 51 b , thereby increasing the volume of the accommodating space 51 a in the first raised portion 51 b , and increasing the volume and capacity of the battery 10 .

[0325] In some embodiments, referring to FIG. 30 to FIG. 35 , the raised portion 51 includes a second raised portion 51 c , which extends along the length direction of the vehicle 100 and is located on one side of the support plate seat 20 along the width direction of the vehicle 100 .

[0326] In this way, the interference of the second raised portion 51 c on the leg and foot movements of the occupant can be reduced, thereby improving the occupant's user experience.

[0327] In some embodiments, referring to FIG. 30 to FIG. 35 , there are two second raised portions 51 c , which are respectively located at one end of the support plate 50 along the width direction of the vehicle 100 , and the seat 20 is located between the two second raised portions 51 c .

[0328] That is, the seat 20 is located in the area between the two second raised portions 51 c.

[0329] In this way, the space for the occupants' legs and feet to move can be increased, thereby improving the occupants' user experience. At the same time, the arrangement of the second raised portion 51 c effectively utilizes the space along the width edge of the vehicle 100 .

[0330] In some embodiments, referring to FIG. 30 to FIG. 35 , the second raised portion 51 c extends along the length direction to both ends of the battery 10 along the length direction of the vehicle 100 to further increase the capacity of the battery 10 .

[0331] In some embodiments, the second raised portion 51 c is spaced apart from the seat 20 along the width direction of the vehicle 100 .

[0332] This helps to increase the space for passengers' legs and feet to move, and improve the user's riding experience.

[0333] In some embodiments, referring to FIG. 32 and FIG. 34 , a portion of the second raised portion 51 c is located below the seat 20 .

[0334] This helps to reduce the size of the support plate 50 along the width direction, making the structure of the vehicle 100 more compact.

[0335] In some embodiments, referring to Figures 27 to 29, the raised portion 51 includes a third raised portion 51d, which extends along the width direction of the vehicle 100. There are multiple seats 20, and the multiple seats 20 are divided into at least two rows spaced apart along the length direction of the vehicle 100. At least a portion of the third raised portion 51d is located below the seats 20 in the same row.

[0336] In this way, the third raised portion 51d makes better use of the space below the seat 20 along the width direction of the vehicle 100. At the same time, the third raised portion 51d can reduce the encroachment on the space between two adjacent rows of seats 20, reduce interference with passenger activities, and improve passenger experience.

[0337] In some embodiments where the first gap 20 a is provided, a portion of the third raised portion 51 d is located below the seat 20 and another portion is located in the first gap 20 a .

[0338] In this way, the third raised portion 51 d can better utilize the space under the seat 20 and the space in the first gap 20 a , which is beneficial to improving the space utilization of the battery 10 in the vehicle 100 and increasing the capacity of the battery 10 .

[0339] It can be understood that there are multiple first gaps 20a between the multiple seats 20 spaced apart along the width direction of the vehicle 100, and the third raised portion 51d extends along the width direction of the vehicle 100 and passes through all the first gaps 20a and is located under each seat 20 in the same row to improve space utilization.

[0340] In some embodiments, referring to Figures 2, 7, 24, 25, 29, 32 and 34, the seat 20 includes a seat 21, and at least a portion of the seat 21 is spaced from the support plate 50 along the height direction of the vehicle 100 to form a second gap 20b, and at least a portion of the raised portion 51 is located in the second gap 20b and is spaced from the seat 21 along the height direction of the vehicle 100.

[0341] The seat 21 is used for passengers to sit on and bear the weight of the passengers.

[0342] In this way, the probability of the raised portion 51 being damaged by the pressure of the passenger sitting on the seat 21 due to direct contact between the raised portion 51 and the seat 21 can be reduced.

[0343] It is understandable that a portion of the bottom surface of the seat 21 may be spaced from the support plate 50 along the height direction of the vehicle 100 to form the second gap 20b, while the other portion is in contact with the support plate 50; or the entire bottom surface of the seat 21 may be spaced from the support plate 50 along the height direction of the vehicle 100 to form the second gap 20b, that is, the seat 21 and the support plate 50 are completely spaced from each other along the height direction of the vehicle 100.

[0344] The specific method of forming the second gap 20b is not limited.

[0345] For example, referring to Figures 24, 25, 27, 32 and 34, the seat 20 includes a support leg 23, the seat 21 and the support plate 50 are spaced apart in the vertical direction to form a second gap 20b, and the support leg 23 is connected between the seat 21 and the support plate 50.

[0346] In this way, it is easy to achieve the spacing setting between the seat 21 and the raised portion 51, which is beneficial to making the shape of the seat 21 regular and easy to place; at the same time, it is easy for the occupant to extend his feet into the second gap 20b, which is convenient for the occupant to sit in a relaxed posture and improve riding comfort.

[0347] It is understandable that the connection position between the support leg 23 and the support plate 50 is not limited, and can be located on the raised portion 51 ; or located in other areas of the support plate 50 except the raised portion 51 .

[0348] In some embodiments, referring to Figures 24, 25, 27, 32 and 34, there are multiple supporting legs 23, and the multiple supporting legs 23 are arranged at intervals along the width direction of the vehicle 100, and part or all of the raised portion 51 is located between two adjacent supporting legs 23 along the width direction of the vehicle 100.

[0349] In this way, the arrangement of the raised portion 51 facilitates the use of the space between the two legs 23 , which is beneficial to improving the space utilization of the battery 10 in the interior space of the vehicle 100 and increasing the capacity of the battery 10 .

[0350] It is understandable that the seat 21 includes a cushion 211 , which is made of elastically deformable materials such as sponge to improve the riding experience of the occupant.

[0351] It is understandable that the shape of the buffer pad 211 needs to be constrained to support the structure of the seat 21 .

[0352] In some implementations where the cushion pad 211 is provided, the raised portion 51 is embedded in the cushion pad 211 to support the seat 21 in the height direction of the vehicle 100 .

[0353] In other words, the raised portion 51 forms at least a portion of the structure that supports the cushion 211. This helps simplify the structure of the seat 20, improve the utilization of the interior space of the seat 20, and reduce production costs.

[0354] It is understandable that the seat 21 includes a frame 212 , which is inserted into the cushion 211 and fits closely with the cushion 211 to constrain the shape of the cushion 211 .

[0355] In some embodiments, referring to FIG. 3 and FIG. 8 , the skeleton 212 is connected to the raised portion 51 to form a force transmission path among the cushion 211 , the skeleton 212 , and the raised portion 51 , thereby transferring the weight of the occupant to the support plate 50 .

[0356] The relative structural relationship between the support plate 50 and the battery 10 is not limited. The embodiment of the present disclosure provides the following two implementations of the battery 10 and the support plate 50.

[0357] Implementation Method 1

[0358] 7 to 12 and 36 to 39 , one side of the container 11 is opened to form a first opening 11 c , and the support plate 50 covers the first opening 11 c to form a housing cavity 11 a , in which the battery assembly 12 is disposed.

[0359] That is to say, when the battery 10 is not installed in the vehicle 100, the side of the battery assembly 12 in the battery 10 facing the first opening 11c is directly exposed to the outside world; when the battery 10 is installed in the vehicle 100, the battery assembly 12 and the interior space 100a are separated only by the support plate 50.

[0360] This is conducive to simplifying the structure of the vehicle 100, making the arrangement between the support plate 50 and the battery 10 more compact, and is conducive to increasing the capacity of the battery 10 when the volume of the internal space of the vehicle 100 is constant; at the same time, after the battery 10 is removed from the vehicle 100, the battery assembly 12 can be directly inspected through the first opening 11c.

[0361] It can be understood that the support plate 50 completely covers the first opening 11 c.

[0362] It is understood that when the battery 10 is installed in the vehicle 100 , the convenience of maintaining the battery 10 needs to be considered.

[0363] In some embodiments, referring to Figures 37 to 39, the raised portion 51 includes a raised body 511 and a first closing cover 512. The raised body 511 is provided with a first through hole 511a, which is connected to the accommodating space 51a. The first closing cover 512 is detachably connected to the raised body 511 to cover the first through hole 511a.

[0364] In this way, when the battery 10 needs to be inspected and maintained, the first closing cover 512 can be removed to inspect the portion of the battery assembly 12 located in the accommodating space 51a from the interior space 100a through the first opening 11c and the first through hole, without the need to additionally disassemble the battery 10. This is beneficial for increasing the activity space of the maintenance personnel and improving the convenience of the maintenance work.

[0365] The specific number of the first through holes 511 a is not limited, and can be one or more.

[0366] It is understandable that it is necessary to reduce the probability of foreign matter entering the accommodating cavity 11 a through the seam between the first closing cover 512 and the raised body 511 and affecting the operation of the battery assembly 12 .

[0367] In some embodiments, referring to Figures 38 and 39, the raised portion 51 also includes a first sealing member 513, which is arranged around the periphery of the first through hole 511a. The first sealing member 513 is clamped between the raised body 511 and the first closing cover 512 to seal the raised body 511 and the first closing cover 512.

[0368] The first sealing member 513 is elastically deformable. When the first sealing member 513 is sandwiched between the raised body 511 and the first sealing cover 512, the elastic deformation of the first sealing member 513 reduces the gap between the raised body 511 and the first sealing cover 512, thereby reducing the chance of foreign matter entering the accommodating cavity 11a and affecting the operation of the battery 10, extending the service life of the battery 10 and facilitating safe use of the battery 10.

[0369] The specific material of the first sealing member 513 is not limited, such as silicone, industrial rubber, etc.

[0370] The specific manner in which the first sealing cover is detachably connected to the raised body 511 is not limited.

[0371] In some embodiments, the first closure cover 512 is mounted to the raised body 511 via threaded fasteners.

[0372] Threaded fasteners are fasteners such as screws, bolts, studs, etc. that can be connected through threads.

[0373] In this way, the use of threaded fasteners facilitates disassembly while helping to improve the connection strength between the first closing cover 512 and the raised body 511.

[0374] It can be understood that one of the raised body 511 and the first closing cover 512 is provided with a through hole, and the other is provided with a threaded hole, and the threaded fastener passes through the thread in the threaded hole to achieve threaded connection.

[0375] In some embodiments, the first closing cover 512 is slidably engaged with the raised body 511 .

[0376] That is, one of the first closing cover 512 and the raised body 511 is provided with a sliding groove, and a portion of the other can be embedded in the sliding groove, so that the two can slide relative to each other.

[0377] In this way, by sliding, the first closing cover 512 can open or close the first through hole 511 a more quickly, thereby improving the convenience of maintenance.

[0378] In some embodiments, the first closure cover 512 is hinged to the raised body 511 .

[0379] That is, the first closing cover 512 can be rotated relative to the raised body 511 in a hinged manner, so that the first closing cover 512 opens or closes the first through hole 511 a.

[0380] In this way, by rotating, the first closing cover 512 can open or close the first through hole 511 a more quickly, thereby improving the convenience of maintenance.

[0381] In some embodiments, referring to FIG. 39 , the battery 10 includes a temperature control assembly 14 , which is sandwiched between the support plate 50 and the battery assembly 12 .

[0382] The temperature control component 14 is provided with a flow channel and a temperature control medium inside. The temperature control medium can flow in the flow channel to transfer heat from one area of ​​the temperature control component 14 to another area, thereby achieving the purpose of adjusting the temperature of the object in contact with the temperature control component 14.

[0383] In this way, the temperature control component 14 absorbs the heat of the battery assembly 12 during operation, thereby reducing the operating temperature of the battery assembly 12 and improving the safety of the battery 10. At the same time, the heat transferred to the support plate 50 and radiated into the vehicle interior space 100a during the operation of the battery assembly 12 is reduced. The advantage of the larger area of ​​the support plate 50 can be better utilized to increase the contact area between the temperature control component 14 and the battery assembly 12, thereby improving the temperature control effect.

[0384] It should be noted that the specific structure and heat exchange principle of the temperature control component 14 have been applied in related technologies and will not be described in detail here.

[0385] It is understandable that it is necessary to fix the position of the temperature control component 14 relative to the battery assembly 12 so that the temperature control effect of the temperature control component 14 can be fully exerted.

[0386] In some embodiments, referring to FIG. 38 and FIG. 39 , the battery 10 includes a first adhesive layer 13 , which is adhered between the support plate 50 and the outer surface of the temperature control assembly 14 .

[0387] In this way, the relative position between the temperature control assembly 14 and the support plate 50 is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0388] In some embodiments, referring to FIG. 38 and FIG. 39 , the battery 10 includes a third adhesive layer 16 , which is adhered between the temperature control assembly 14 and the outer surface of the battery assembly 12 .

[0389] In this way, the relative position between the temperature control assembly 14 and the battery assembly 12 is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0390] In the embodiment where the protrusion 1214 is provided and at least a portion of the protrusion 1214 is located in the accommodation space 51a, referring to Figure 12, the height of the protrusion 1214 does not exceed 77% of the height of the raised portion 51. In other words, H4 / H2≤77%.

[0391] In this way, on the one hand, it is beneficial to space the protrusion 1214 and the accommodating space 51a along the height direction of the battery 10 to reduce the probability of damage caused by direct contact between the two, and it is also convenient to arrange other components of the battery assembly 12 in the accommodating space 51a; on the other hand, the thickness of the raised portion 51 can better protect the protrusion 1214.

[0392] In some embodiments, referring to FIG. 12 , the height of the protrusion 1214 accounts for 21% to 53% of the height of the raised portion 51 .

[0393] In this way, the size of the accommodating space 51a further meets the requirements of arranging other components of the battery assembly 12; and it is further beneficial for the raised portion 51 to have sufficient strength to protect the protrusion 1214.

[0394] In some embodiments with poles 1213 , referring to FIG. 12 , the poles 1213 of at least two battery cells 121 are located in the same accommodation space 51 a .

[0395] In this way, it is beneficial to electrically connect the poles 1213 of different battery cells 121 in one accommodating space 51 a , which is beneficial to making the structure of the battery 10 more compact.

[0396] In some embodiments, referring to FIG. 38 and FIG. 40 , the vehicle 100 further includes a second insulating member 18 , which is disposed on an inner wall of the accommodating space 51 a .

[0397] In this way, by utilizing the insulating properties of the second insulating member 18, the risk of contact between the battery assembly 12 and the inner wall of the accommodating space 51a can be reduced, thereby reducing the risk of charge being transferred between the battery assembly 12 and the support plate 50, and reducing the risk of problems such as short circuits occurring in the battery 10 during use.

[0398] The specific material of the second insulating member 18 is not limited, such as rubber.

[0399] In some embodiments, referring to FIG. 38 and FIG. 40 , the battery assembly 12 includes a battery cell 121 , the battery cell 121 includes a pole 1213 , and the second insulating member 18 is disposed opposite to the pole 1213 .

[0400] In this way, the probability of the pole 1213 contacting the support plate 50 due to relative movement between the battery assembly 12 and the support plate 50 can be reduced, thereby reducing the risk of the battery cell 121 short-circuiting due to the contact between the pole 1213 and the support plate 50.

[0401] The second insulating member 18 is disposed opposite to the pole 1213 , which means that there are no other components of the vehicle 100 between the second insulating member 18 and the pole 1213 .

[0402] In some embodiments, referring to Figure 38, the battery assembly 12 also includes a busbar 122, at least a portion of which is located in the accommodating space 51a, and the distance between the inner wall of the accommodating space 51a and the busbar 122 along the first direction is not less than 1% of the size of the accommodating space 51a along the first direction, and the first direction is perpendicular to the uplift direction of the uplift portion 51.

[0403] This helps to reduce the probability of the current collector 122 contacting the inner wall of the accommodating space 51 a and the probability of a short circuit caused by the current collector 122 contacting the support plate 50 .

[0404] The first direction may be any direction perpendicular to the raised direction of the raised portion 51 , such as the length direction of the battery 10 , the width direction of the battery 10 , and the like.

[0405] In some embodiments, the ratio of the distance between the inner wall of the accommodating space 51 a and the current collector 122 along the first direction to the size of the accommodating space along the first direction is in a range of 2% to 10%.

[0406] This further helps reduce the probability of the current collector 122 contacting the inner wall of the accommodating space 51 a.

[0407] Implementation Method 2

[0408] 2 to 6 , 13 to 16 , and 41 to 44 , the receiving box 11 includes a first box wall 111 . The first box wall 111 is located on a side of the receiving box 11 facing the support plate 50 , and a portion of the first box wall 111 extends into the receiving space 51 a .

[0409] That is to say, the interior space 100a of the vehicle is separated from the battery assembly 12 by the first box wall 111 and the support plate 50, wherein the first box wall 111 itself is a component in the battery 10, and when the battery 10 is removed from the vehicle 100, the first box wall 111 is still located on the battery 10.

[0410] In this way, on the one hand, during the process of transporting the battery 10 separately, the first box wall 111 can protect the battery assembly 12; on the other hand, it reduces the probability of the battery assembly 12 contacting the support plate 50, and reduces the probability of the battery 10 leaking and other problems causing adverse effects on other components and personnel in the vehicle 100.

[0411] In some embodiments, referring to Figures 13 to 16 and Figures 41 to 44, the storage box 11 includes a box body 112 and a box cover, the first box wall 111 forms the box cover, one side of the box body 112 is open to form a second opening 112a, the box cover is arranged on the second opening 112a to form a storage cavity 11a together with the box body 112, and the battery assembly 12 is arranged in the storage cavity 11a.

[0412] In this way, the container box 11 is formed by splicing the box body 112 and the box cover, which makes it easy to disassemble the container box 11 according to actual needs to inspect and maintain the battery assembly 12.

[0413] It is understandable that the box body 112 and the box cover are detachably connected so that the two can be selectively connected and separated.

[0414] In some embodiments, referring to Figures 42 to 44, the first box wall 111 includes a box wall body 1112 and a second closing cover 1113. The box wall body 1112 is provided with a second through hole 1112a, and the second through hole 1112a is connected to the accommodating cavity 11a. The second closing cover 1113 is detachably connected to the box wall body 1112 to cover the second through hole 1112a.

[0415] In this way, when the battery 10 is separated from the vehicle 100, the battery assembly 12 located in the accommodating cavity 11a can be inspected and maintained through the second through hole 1112a only by disassembling the second closing cover 1113, thereby improving the convenience and efficiency of inspection.

[0416] The specific number of the second through holes 1112a is not limited, and can be one or more.

[0417] It is understandable that it is necessary to reduce the probability of foreign matter entering the accommodating cavity 11 a through the seam between the second closing cover 1113 and the box wall body 1112 and affecting the operation of the battery assembly 12 .

[0418] In some embodiments, referring to Figures 42 to 44, the box cover also includes a second sealing member 1114, which is arranged around the periphery of the second through hole 1112a. The second sealing member 1114 is clamped between the box wall body 1112 and the second closing cover 1113 to seal the box wall body 1112 and the second closing cover 1113.

[0419] The second sealing member 1114 can undergo elastic deformation. When the second sealing member 1114 is sandwiched between the box wall body 1112 and the second sealing cover 1113, the elastic deformation of the second sealing member 1114 reduces the gap between the box wall body 1112 and the second sealing cover 1113, thereby reducing the probability of foreign matter entering the accommodating chamber 11a and affecting the operation of the battery assembly 12, extending the service life of the battery 10, and promoting the safe use of the battery 10.

[0420] The specific material of the second sealing member 1114 is not limited, such as silicone, industrial rubber, etc.

[0421] There is no limitation on the specific manner in which the second sealing cover is detachably connected to the box wall body 1112 .

[0422] In some embodiments, the second closure cover 1113 is mounted to the box wall body 1112 via threaded fasteners.

[0423] In this way, the use of threaded fasteners facilitates disassembly while helping to improve the connection strength between the second closing cover 1113 and the box wall body 1112.

[0424] It can be understood that one of the box wall body 1112 and the second closing cover 1113 is provided with a through hole, and the other is provided with a threaded hole, and the threaded fastener passes through the thread in the threaded hole to achieve threaded connection.

[0425] In some embodiments, the second closing cover 1113 is slidably engaged with the box wall body 1112 .

[0426] That is to say, one of the second closing cover 1113 and the box wall body 1112 is provided with a sliding groove, and a part of the other can be embedded in the sliding groove, so that the two can slide relative to each other.

[0427] In this way, by sliding, the second closing cover 1113 can open or close the second through hole 1112a more quickly, thereby improving the convenience of maintenance.

[0428] In some embodiments, the second closing cover 1113 is hinged to the box wall body 1112 .

[0429] That is to say, the second closing cover 1113 can be rotated relative to the box wall body 1112 in a hinged manner, so that the second closing cover 1113 opens or closes the first through hole 511a.

[0430] In this way, by rotating, the second closing cover 1113 can open or close the second through hole 1112a more quickly, thereby improving the convenience of maintenance.

[0431] It is understood that when the battery 10 is installed in the vehicle 100 , it is necessary to facilitate the inspection and maintenance of the battery 10 .

[0432] In some embodiments, referring to Figures 42 to 43, the raised portion 51 includes a raised body 511 and a first closing cover 512. The raised body 511 is provided with a first through hole 511a, which is connected to the accommodating space 51a. The first through hole 511a is detachably connected to the raised body 511 to cover the first through hole 511a. The second through hole 1112a and the first through hole 511a are arranged opposite to each other.

[0433] In this manner, when the first closing cover 512 and the second closing cover 1113 are removed, the interior space 100a, the storage space 51a, and the storage cavity 11a are interconnected, and the storage space 51a and the storage cavity 11a are arranged relative to each other. This facilitates maintenance personnel to directly perform maintenance work on the battery assembly 12 from the interior space 100a without having to remove the battery 10 from the vehicle 100, thereby improving the convenience of maintenance work and enhancing work efficiency. In some embodiments, in a projection plane perpendicular to the relative direction of the second through hole 1112a and the first through hole 511a, the projection of the second through hole 1112a is located within the projection range of the first through hole 511a. This facilitates the disassembly and assembly of the second closing cover 1113 and the box wall body 1112 through the first through hole 511a.

[0434] In some embodiments, referring to FIG. 43 and FIG. 44 , the battery 10 includes a temperature control assembly 14 , which is sandwiched between the first box wall 111 and the battery assembly 12 .

[0435] In this way, the temperature control component 14 absorbs the heat of the battery assembly 12 during operation, thereby reducing the operating temperature of the battery assembly 12 and improving the safety of the battery 10. At the same time, the temperature control component 14 can radiate part of the heat directly to the outside through the wall of the container 11, thereby increasing the heat dissipation area and improving the temperature control effect.

[0436] In some embodiments, referring to FIG. 43 and FIG. 44 , the battery 10 includes a second adhesive layer 15 , and the second adhesive layer 15 is adhered between the first box wall 111 and the outer surface of the temperature control assembly 14 .

[0437] In this way, the relative position between the temperature control component 14 and the first box wall 111 is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0438] In some embodiments, referring to FIG. 43 and FIG. 44 , the battery 10 includes a third adhesive layer 16 , which is adhered between the temperature control assembly 14 and the outer surface of the battery assembly 12 .

[0439] In this way, the relative position between the temperature control assembly 14 and the battery assembly 12 is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0440] In some embodiments, referring to Figures 13 to 16 and Figures 41 to 44, a portion of the first box wall 111 protrudes to form a boss 1111, at least a portion of the boss 1111 extends into the accommodating space 51a, and the side of the boss 1111 facing away from the accommodating space 51a forms an accommodating portion 11b, and a portion of the battery assembly 12 is located in the accommodating portion 11b.

[0441] In this way, a part of the battery assembly 12 is located in the accommodating space 51a through the accommodating portion 11b, so that the battery assembly 12 located in the accommodating space 51a is protected by the boss 1111, reducing the probability of direct contact between the battery assembly 12 and the support plate 50; at the same time, it is beneficial to make the area of ​​the first box wall 111 with the protrusion 1214 consistent with the thickness of other areas, which is beneficial to reducing the overall size of the first box wall 111, and then helping to reduce the three-dimensional size of the accommodating box 11, reducing the overall volume of the battery 10, and facilitating improving the energy density and space utilization of the battery 10.

[0442] In some embodiments, referring to FIG6 , the height of the boss 1111 does not exceed 98.5% of the height of the raised portion 51. In other words, H3 / H2≤98.5%.

[0443] In this way, the probability that the boss 1111 abuts against the inner wall of the accommodation space 51 a along the height direction and affects the arrangement between the battery 10 and the support plate 50 is reduced.

[0444] 6 , in some embodiments, the height of the boss 1111 accounts for 21% to 53% of the height of the raised portion 51. That is, 33%≤H3 / H2≤95.2%.

[0445] In this way, on the one hand, the probability of the boss 1111 abutting against the inner wall of the accommodating space 51a along the height direction is further reduced; on the other hand, it is conducive to making the space for accommodating the battery assembly 12 in the accommodating portion 11b larger.

[0446] In some embodiments, referring to FIG. 12 , the battery assembly 12 further includes a battery cell 121. The battery cell 121 includes a housing 1211 having a first housing wall 1212. The first housing wall 1212 includes a protrusion 1214. At least a portion of the protrusion 1214 is located within the accommodating portion 11 b. The height of the protrusion 1214 does not exceed 77% of the height of the boss 1111. In other words, H4 / H3 ≤ 77%.

[0447] In this way, on the one hand, it is beneficial to space the protrusion 1214 and the accommodating portion 11b along the height direction of the battery 10 to reduce the probability of damage caused by direct contact between the two, and it is also convenient to arrange other components of the battery assembly 12 in the accommodating portion 11b; on the other hand, the thickness of the first box wall 111 can better protect the protrusion 1214.

[0448] In some embodiments, the height of the protrusion 1214 accounts for 36% to 53% of the height of the boss 1111. In other words, 36%≤H4 / H3≤53%.

[0449] In this way, the probability of damage caused by direct contact between the two is further reduced, which is more conducive to the arrangement of other components of the battery assembly 12 in the accommodating portion 11b.

[0450] In some embodiments, referring to FIG6 , the battery assembly 12 includes a protruding portion 12a, at least a portion of which is located in the receiving portion 11b, and a height dimension of the protruding portion 12a does not exceed 94% of a height dimension of the boss 1111. That is, H1 / H3≤94%.

[0451] This helps to reduce the probability of the protruding portion 12a and the boss 1111 abutting against each other in the vertical direction, thereby reducing the probability of damage caused by the abutment between the two.

[0452] 6 , in some embodiments, the height of the protruding portion 12a accounts for 74% to 86% of the height of the boss 1111. That is, 74%≤H1 / H3≤86%.

[0453] In this way, the probability of the protruding portion 12a and the boss 1111 abutting against each other in the vertical direction is further reduced, and the space utilization rate of the protruding portion 12a to the accommodating portion 11b is improved.

[0454] In some embodiments, referring to Figures 42 and 43 , the battery assembly 12 further includes a current collector 122. At least a portion of the current collector 122 is located within the accommodating portion 11b. The spacing between the inner wall of the accommodating portion 11b and the current collector 122 along a first direction is no less than 1% of the dimension of the accommodating portion 11b along the first direction, where the first direction is perpendicular to the thickness of the first box wall 111. In other words, L8 / L7 ≥ 1%.

[0455] This helps reduce the probability of the current collector 122 contacting the inner wall of the accommodating portion 11 b and causing a short circuit, so that the battery assembly 12 can function normally.

[0456] In some embodiments, the ratio of the distance between the inner wall of the accommodating portion 11b and the current collector 122 along the first direction to the size of the accommodating portion along the first direction is in a range of 2% to 10%, that is, 2%≤L8 / L7≤10%.

[0457] This further helps reduce the probability of the current collector 122 contacting the inner wall of the accommodating portion 11 b and causing a short circuit.

[0458] In some embodiments, referring to FIG. 5 and FIG. 6 , the battery assembly 12 includes a battery cell 121 , and the battery cell 121 includes a pole 1213 . The poles 1213 of at least two battery cells 121 are located in the same receiving portion 11 b .

[0459] In this way, it is beneficial to electrically connect the poles 1213 of different battery cells 121 in one accommodating portion 11 b , which is beneficial to making the structure of the battery 10 more compact.

[0460] In some embodiments, referring to FIG. 43 and FIG. 45 , the battery 10 includes a first insulating member 17 , and the first insulating member 17 is disposed on the inner wall of the accommodating portion 11 b .

[0461] In this way, the insulating performance of the first insulating member 17 can be utilized to reduce the contact between the battery assembly 12 and the inner wall of the accommodating portion 11b, thereby reducing the risk of charge being transferred between the battery assembly 12 and the first box wall 111, thereby reducing the risk of problems such as short circuits occurring in the battery 10 during use.

[0462] In some embodiments, referring to FIG. 43 and FIG. 45 , the battery assembly 12 includes a battery cell 121 , the battery cell 121 includes a pole 1213 , and the first insulating member 17 is disposed opposite to the pole 1213 .

[0463] The first insulating member 17 and the pole 1213 are arranged opposite to each other, which means that the first insulating member 17 and the pole 1213 do not have other components in the battery assembly 12.

[0464] In this way, the probability of the pole 1213 contacting the first box wall 111 due to relative movement between the battery assembly 12 and the first box wall 111 can be reduced, thereby reducing the risk of the battery cell 121 short-circuiting due to the contact between the pole 1213 and the first box wall 111.

[0465] It is understandable that the first insulating member 17 and the pole 1213 can be spaced apart or in close contact with each other.

[0466] In some embodiments with a box wall body 1112 and a second closing cover 1113 , referring to FIG. 14 to FIG. 16 and FIG. 43 , part or all of the boss 1111 forms the second closing cover 1113 .

[0467] In this way, it is convenient to disassemble and assemble the boss 1111 so as to inspect and maintain the battery assembly 12.

[0468] It can be understood that a portion of the boss 1111 is formed by the second closing cover 1113 , and another portion is formed by the box wall body 1112 .

[0469] In some embodiments, referring to Figures 15, 16, and 44, a portion of the box wall body 1112 protrudes in a direction away from the accommodating cavity 11a to form a mounting step 1112b. A second through hole 1112a extends through the mounting step 1112b, which communicates with the accommodating cavity 11a. A second closing cover 1113 is detachably mounted on the mounting step 1112b to cover the second through hole 1112a. The mounting step 1112b and the second closing cover 1113 together form a boss 1111. This allows the boss 1111 to be disassembled, facilitating inspection and maintenance of the battery assembly 12.

[0470] In some embodiments, the length direction of the boss 1111 is the same as the length direction of the accommodating cavity 11 a , and the dimensions of the boss 1111 and the accommodating cavity 11 a along the length direction are the same.

[0471] The length direction of the accommodating cavity 11 a is the length direction of the battery 10 .

[0472] In this way, it is beneficial to increase the size of the accommodating portion 11 b along the length direction of the battery 10 as much as possible, thereby facilitating the size and volume of the accommodating portion 11 b to adapt to various battery assemblies 12 of different sizes and shapes.

[0473] In some embodiments, the length direction of the boss 1111 is the same as the width direction of the accommodating cavity 11 a , and the length dimension of the boss 1111 is the same as the width dimension of the first box wall 111 .

[0474] The width direction of the accommodating cavity 11 a is the width direction of the battery 10 .

[0475] In this way, it is beneficial to increase the size of the accommodating portion 11 b along the width direction of the battery 10 as much as possible, thereby facilitating the size and volume of the accommodating portion 11 b to adapt to various battery assemblies 12 of different sizes and shapes.

[0476] In some embodiments, referring to FIG. 13 , the width of the boss 1111 does not exceed 500 mm, that is, l1≤500 mm.

[0477] In this way, on the one hand, it is beneficial to make the surface of the first box wall 111 have a larger flat area so as to adapt to other components in the vehicle 100 and reduce the adverse effects of the boss 1111 on the layout of other components in the vehicle 100; on the other hand, it reduces the adverse effects of the boss 1111 due to its large width, which leads to the reduction of its structural strength, and reduces the probability of damage to components in the accommodating portion 11b due to deformation of the boss 1111.

[0478] In some embodiments, referring to FIG. 13 , the width of the boss 1111 ranges from 50 mm to 300 mm, that is, 50 mm ≤ l1 ≤ 300 mm.

[0479] In this way, the space within the accommodating portion 11 b can meet the arrangement requirements of the battery assembly 12 .

[0480] The specific value of the width of the boss 1111 is not limited. For example, the width of the boss 1111 can be 50 mm, 100 mm, 200 mm, 300 mm, etc.

[0481] In some embodiments, referring to FIG. 15 , the height of the boss 1111 does not exceed 300 mm, that is, l2≤300 mm.

[0482] In this way, other components in the vehicle 100 can be adapted to each other, and the adverse effects of the boss 1111 on the arrangement of other components in the vehicle 100 can be reduced; at the same time, the probability of the boss 1111 being deformed and bent by shear stress perpendicular to the height direction, thereby damaging the battery assembly 12 in the accommodating portion 11b, is reduced.

[0483] In some embodiments, referring to FIG. 15 , the height of the boss 1111 ranges from 5 mm to 100 mm, that is, 5 mm ≤ 12 ≤ 100 mm.

[0484] In this way, the space in the accommodation portion 11b can meet the arrangement requirements of the protruding portion 12a.

[0485] The specific value of the height of the boss 1111 is not limited. For example, the width of the boss 1111 can be 5 mm, 8 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, etc. In some embodiments, referring to FIG. 41 , the width of the raised portion 51 does not exceed 500 mm, i.e., l3 ≤ 500 mm.

[0486] In this way, the space within the accommodating portion 11 b can meet the arrangement requirements of the battery assembly 12 .

[0487] The specific value of the width of the raised portion 51 is not limited. For example, the width of the raised portion 51 can be 100 mm, 200 mm, 300 mm, 400 mm, 500 mm, etc.

[0488] In some embodiments, referring to FIG. 43 , the height of the raised portion 51 does not exceed 300 mm, that is, l4≤300 mm.

[0489] In this way, it is compatible with other components in the vehicle 100, reducing the adverse effects of the boss 1111 on the arrangement of other components in the vehicle 100; at the same time, it reduces the probability that the raised portion 51 will be deformed and bent due to shear stress perpendicular to the height direction, thereby damaging the battery assembly 12 in the accommodating portion 11b.

[0490] The specific value of the height of the raised portion 51 is not limited. For example, the height of the raised portion 51 can be 50 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, etc.

[0491] The embodiment of the present disclosure also provides a battery 10 for a vehicle 100. Referring to Figures 2 to 12, the vehicle 100 includes a support plate 50, and the battery 10 is located on one side of the support plate 50. The support plate 50 has a raised portion 51 arranged away from the battery 10, and the raised portion 51 forms a receiving space 51a on the side facing the battery 10. The battery 10 includes a receiving box 11 and a battery assembly 12. The battery assembly 12 is received in the receiving box 11. The battery assembly 12 includes a protruding portion 12a, and the protruding portion 12a is used to protrude toward the support plate 50 to extend into the receiving space 51a. In a projection plane perpendicular to the protruding direction of the protruding portion 12a, a projection of a portion of the battery assembly 12 is located outside the projection of the protruding portion 12a.

[0492] That is, a portion of the battery assembly 12 is located in the accommodation space 51 a , and another portion is located outside the accommodation space 51 a .

[0493] In this way, the battery 10 can better utilize the space formed by the raised portion 51 , making the structure of the battery 10 more compact, which is beneficial to increasing the capacity of the battery 10 in the vehicle 100 .

[0494] In some embodiments, referring to FIG. 39 , a placement space 11d is provided in the storage box 11 , and the battery assembly 12 is provided in the placement space 11d . One side of the placement space 11d is opened to form a first opening 11c , and the first opening 11c is used for the support plate 50 to be covered thereon.

[0495] That is to say, when the battery 10 is not installed in the vehicle 100, the side of the battery assembly 12 in the battery 10 facing the first opening 11c is directly exposed to the outside world; when the battery 10 is installed in the vehicle 100, the battery assembly 12 and the interior space 100a are separated only by the support plate 50.

[0496] This is conducive to simplifying the structure of the battery 10 and the vehicle 100, making the arrangement between the support plate 50 and the battery 10 more compact, and is conducive to increasing the capacity of the battery 10 when the volume of the internal space of the vehicle 100 is constant; at the same time, after the battery 10 is removed from the vehicle 100, the battery assembly 12 can be directly inspected and repaired through the first opening 11c.

[0497] In some embodiments, referring to FIG. 38 and FIG. 39 , the battery 10 includes a temperature control assembly 14 . The temperature control assembly 14 is disposed on a side of the battery assembly 12 facing the first opening 11 c .

[0498] In this way, the temperature control component 14 absorbs the heat of the battery assembly 12 during operation, thereby reducing the operating temperature of the battery assembly 12 and improving the safety of the battery 10. At the same time, the heat transferred to the support plate 50 and radiated into the vehicle interior space 100a during the operation of the battery assembly 12 is reduced.

[0499] In some embodiments, referring to FIG. 38 and FIG. 39 , the battery 10 includes a first adhesive layer 13 , and the first adhesive layer 13 is used to bond the support plate 50 to the outer surface of the temperature control component 14 .

[0500] In this way, the first adhesive layer fixes the relative position between the temperature control assembly 14 and the support plate 50 , thereby reducing the probability of friction damage caused by relative movement between the two.

[0501] It can be understood that the first adhesive layer 13 is located on the side of the temperature control component 14 facing the first opening 11 c.

[0502] In some embodiments, referring to FIG. 38 and FIG. 39 , the battery 10 includes a third adhesive layer 16 , which is adhered between the temperature control assembly 14 and the outer surface of the battery assembly 12 .

[0503] In this way, the relative position between the temperature control assembly 14 and the battery assembly 12 is fixed, reducing the probability of friction damage caused by relative movement between the two.

[0504] In some embodiments, referring to FIG. 13 to FIG. 16 and FIG. 41 to FIG. 44 , the receiving box 11 includes a first box wall 111 . The first box wall 111 is located on one side of the receiving box 11 , and a portion of the first box wall 111 is used to extend into the receiving space 51 a .

[0505] In this way, during the process of transporting the battery 10 individually, the first box wall 111 can protect the battery assembly 12 and reduce the probability of the battery assembly 12 being damaged by collision.

[0506] In some embodiments, referring to Figures 13 to 16 and Figures 41 to 44, the storage box 11 includes a box body 112 and a box cover, the first box wall 111 forms the box cover, one side of the box body 112 is open to form a second opening 112a, the box cover is arranged on the second opening 112a to form a storage cavity 11a together with the box body 112, and the battery 10 is arranged in the storage cavity 11a.

[0507] In this way, the receiving box 11 is formed by splicing the box body 112 and the box cover, which makes it easy to disassemble the receiving box 11 according to actual needs so that the battery assembly 12 can be loaded into the receiving box and the battery assembly 12 can be subsequently repaired and maintained.

[0508] In some embodiments, referring to Figures 42 to 44, the first box wall 111 includes a box wall body 1112 and a second closing cover 1113. The box wall body 1112 is provided with a second through hole 1112a, and the second through hole 1112a is connected to the accommodating cavity 11a. The second closing cover 1113 is detachably connected to the box wall body 1112 to cover the second through hole 1112a.

[0509] In this way, the battery assembly 12 located in the accommodating cavity 11a can be inspected and maintained through the second through hole 1112a only by disassembling the second closing cover 1113, without disassembling the box body 112 and the box cover, thereby improving the convenience and efficiency of inspection.

[0510] In some embodiments, referring to Figures 42 to 44, the box cover also includes a second sealing member 1114, which is arranged around the periphery of the second through hole 1112a. The second sealing member 1114 is clamped between the raised body 511 and the second closing cover 1113 to seal the box wall body 1112 and the second closing cover 1113.

[0511] In this way, the second seal 1114 reduces the joint space between the box wall body 1112 and the second closing cover 1113 in the contact area with the second seal 1114, thereby reducing the probability of foreign matter from the outside entering the accommodating cavity 11a and affecting the operation of the battery assembly 12, extending the service life of the battery 10, and facilitating the safe use of the battery 10.

[0512] There is no limitation on the specific manner in which the second sealing cover is detachably connected to the box wall body 1112 .

[0513] In some embodiments, the second closure cover 1113 is mounted to the box wall body 1112 via threaded fasteners.

[0514] In this way, the use of threaded fasteners facilitates disassembly while helping to improve the connection strength between the second closing cover 1113 and the box wall body 1112.

[0515] It can be understood that one of the box wall body 1112 and the second closing cover 1113 is provided with a through hole, and the other is provided with a threaded hole, and the threaded fastener passes through the thread in the threaded hole to achieve threaded connection.

[0516] In some embodiments, the second closing cover 1113 is slidably engaged with the box wall body 1112 .

[0517] That is to say, one of the second closing cover 1113 and the box wall body 1112 is provided with a sliding groove, and a part of the other can be embedded in the sliding groove, so that the two can slide relative to each other.

[0518] In this way, by sliding, the second closing cover 1113 can open or close the second through hole 1112a more quickly, thereby improving the convenience of maintenance.

[0519] In some embodiments, the second closing cover 1113 is hinged to the box wall body 1112 .

[0520] That is to say, the second closing cover 1113 can be rotated relative to the box wall body 1112 in a hinged manner, so that the second closing cover 1113 opens or closes the first through hole 511a.

[0521] In this way, by rotating, the second closing cover 1113 can open or close the second through hole 1112a more quickly, thereby improving the convenience of maintenance.

[0522] In some embodiments, referring to Figures 13 to 16 and Figures 41 to 44, on the outer surfaces of opposite sides of a portion of the first box wall 111, one side surface protrudes to form a boss 1111, and the other side surface forms an accommodating portion 11b, at least a portion of the boss 1111 is used to extend into the accommodating space 51a, and a portion of the battery assembly 12 is located in the accommodating portion 11b.

[0523] In this way, a part of the battery assembly 12 is located in the accommodating space 51a through the accommodating portion 11b, so that the battery assembly 12 located in the accommodating space 51a is protected by the boss 1111, reducing the probability of direct contact between the battery assembly 12 and the support plate 50; at the same time, it is beneficial to make the area of ​​the first box wall 111 with the protrusion 1214 consistent with the thickness of other areas, which is beneficial to reducing the overall size of the first box wall 111, and then helping to reduce the three-dimensional size of the accommodating box 11, reducing the overall volume of the battery 10, and facilitating improving the energy density and space utilization of the battery 10.

[0524] In some embodiments with a box wall body 1112 and a second closing cover 1113 , referring to FIG. 14 to FIG. 16 and FIG. 43 , part or all of the boss 1111 forms the second closing cover 1113 .

[0525] In this way, it is convenient to disassemble and assemble the boss 1111 so as to inspect and maintain the battery assembly 12.

[0526] The various embodiments / implementations provided in the present disclosure can be combined with each other without causing any contradiction.

[0527] The foregoing description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure. Industrial Applicability

[0528] Embodiments of the present disclosure provide a battery and a vehicle that can improve the utilization rate of the vehicle's interior space.

Claims

1. A vehicle, wherein: The vehicle comprises: A support plate, formed with a raised portion, wherein the raised portion forms a receiving space; The battery is arranged on one side of the support plate where the accommodation space is provided. The battery comprises a accommodation box and a battery assembly. The battery assembly is accommodated in the accommodation box, and a part of the battery assembly extends into the accommodation space.

2. The vehicle according to claim 1, wherein: The battery assembly includes a protruding portion, at least a portion of which is accommodated in the accommodation space.

3. The vehicle according to claim 2, wherein: In a projection plane perpendicular to the protrusion direction of the protrusion, a portion of the projection of the battery assembly is located outside the projection of the accommodation space.

4. The vehicle according to claim 2, wherein: The battery assembly further includes a plurality of battery cells. The battery cells include a shell having a first shell wall. The protruding portion is disposed on the first shell wall.

5. The vehicle according to claim 4, wherein: The battery assembly further includes a busbar, and the battery cell further includes a pole, which is arranged on the first shell wall. The busbar electrically connects the poles of two battery cells, and the protruding portion includes the busbar, and at least a portion of the busbar is located in the accommodating space.

6. The vehicle according to claim 5, wherein: The pole is at least partially accommodated in the accommodation space.

7. A vehicle according to any one of claims 4 to 6, wherein: The first shell wall includes a protrusion, the protruding portion includes the protrusion, and at least a portion of the protrusion is located in the accommodating space.

8. The vehicle according to claim 7, wherein: The protrusion is provided with a pole.

9. The vehicle according to claim 8, wherein: The number of the poles is two and the polarities are opposite, and the two poles are arranged on the same protrusion.

10. The vehicle according to claim 9, wherein: The protrusion is located at one end of the first shell wall along the length direction of the first shell wall.

11. The vehicle according to claim 8, wherein: The number of the poles is two and the polarities are opposite, and the two poles are respectively arranged on the two protrusions.

12. The vehicle according to claim 11, wherein: The two protrusions are respectively located at one end of the first shell wall along the length direction of the first shell wall.

13. A vehicle according to any one of claims 7 to 12, wherein: The protrusion is located at the center of the first shell wall along the length direction of the first shell wall; And / or, a center position of the first shell wall along its width direction coincides with a center position of the protrusion along the width direction of the first shell wall.

14. A vehicle according to any one of claims 5 to 13, wherein: The two poles are spaced apart along the length direction of the first shell wall; And / or, the two poles are arranged at intervals along the width direction of the first shell wall.

15. A vehicle according to any one of claims 4 to 14, wherein: The battery cell further includes an electrode assembly, which is accommodated in the shell. A portion of the first shell wall is recessed to form a avoidance groove, which is located on a side of the protrusion close to the electrode assembly, and a portion of the electrode assembly is located in the avoidance groove.

16. The vehicle of claim 15, wherein: The electrode assembly includes a main body and a pole ear. The pole ear is arranged on a side edge of the main body and is electrically connected to the main body. At least a portion of the pole ear is located in the avoidance groove.

17. The vehicle of claim 16, wherein: At least a portion of the tab is located in the accommodation space.

18. The vehicle of claim 16, wherein: The battery cell further includes a pole, which is disposed on the first shell wall, and the electrode assembly further includes a switching plate, through which the pole lug is electrically connected to the pole, and at least a portion of the pole lug is located in the accommodation space; And / or, at least a portion of the adapter plate is located in the accommodating space.

19. A vehicle according to any one of claims 1 to 18, wherein: The battery assembly further includes a sampling member, at least a portion of which is accommodated in the accommodation space; And / or, the battery assembly further includes a battery management system, at least a portion of which is accommodated in the accommodation space; And / or, the battery assembly further comprises a relay, at least a portion of the relay is accommodated in the accommodation space; And / or, the battery assembly further comprises a high-voltage power distribution unit, at least a portion of which is accommodated in the accommodation space; And / or, the battery assembly further includes high and low voltage wiring harnesses, at least a portion of which is accommodated in the accommodation space.

20. A vehicle according to any one of claims 4 to 19, wherein: The length of the battery cell is not less than 350 mm; And / or, the width of the battery cell ranges from 5 mm to 50 mm; And / or, the height dimension of the battery cell ranges from 80 mm to 200 mm.

21. A vehicle according to any one of claims 2 to 20, wherein: The height dimension of the protruding portion within the accommodating space ranges from 2 mm to 10 mm.

22. A vehicle according to any one of claims 1 to 21, wherein: The vehicle further includes a seat, and the seat is disposed on a side of the support plate where the raised portion is formed.

23. A vehicle according to any one of claims 22, wherein: In a projection perpendicular to the height direction of the vehicle, a partial or complete projection of the raised portion is located within a projection range of the seat.

24. A vehicle according to claim 22 or 23, wherein: The number of the seats is at least two, a first gap is formed between two adjacent seats along the width direction of the vehicle, and the raised portion includes a first raised portion, and part or all of the first raised portion is located in the first gap.

25. The vehicle of claim 24, wherein: There are multiple seats, and the multiple seats are divided into at least two rows spaced apart along the length direction of the vehicle. The first raised portion extends along the length direction of the vehicle to below another adjacent row of seats.

26. A vehicle as claimed in any one of claims 22 to 25, wherein: The raised portion includes a second raised portion extending in a length direction of the vehicle and located at one side of the support plate seat in a width direction of the vehicle.

27. The vehicle of claim 26, wherein: The number of the second raised portions is two, the two second raised portions are respectively located at one end of the support plate along the width direction of the vehicle, and the seat is located between the two second raised portions.

28. The vehicle of claim 26, wherein: The second raised portion is spaced apart from the seat along the width direction of the vehicle; And / or, part of the second raised portion is located below the seat.

29. A vehicle according to any one of claims 22 to 28, wherein: The raised portion includes a third raised portion, which extends along the width direction of the vehicle. There are multiple seats, and the multiple seats are divided into at least two rows spaced apart along the length direction of the vehicle. At least part of the third raised portion is located below the seats in the same row.

30. A vehicle as claimed in any one of claims 22 to 29, wherein: The seat includes a seat, at least part of the seat is spaced apart from the support plate along the height direction of the vehicle to form a second gap, at least part of the raised portion is located in the second gap and is spaced apart from the seat along the height direction of the vehicle.

31. The vehicle of claim 30, wherein: The chair comprises legs, the seat and the support plate are spaced apart in a vertical direction to form the second gap, and the legs are connected between the seat and the support plate.

32. The vehicle of claim 31, wherein: There are a plurality of the supporting legs, and the plurality of the supporting legs are arranged at intervals along the width direction of the vehicle. Part or all of the raised portion is located between two adjacent supporting legs along the width direction of the vehicle.

33. A vehicle according to any one of claims 30 to 32, wherein: The seat seat includes a cushion pad, and the raised portion is embedded in the cushion pad to support the seat seat in a height direction of the vehicle.

34. A vehicle according to any one of claims 1 to 33, wherein: One side of the containing box is opened to form a first opening, the supporting plate cover is arranged on the first opening to jointly enclose and form a containing cavity, and the battery assembly is arranged in the containing cavity.

35. The vehicle of claim 34, wherein: The raised portion includes a raised body and a first closing cover. The raised body is provided with a first through hole, the first through hole is communicated with the accommodating space, and the first closing cover is detachably connected to the raised body to cover the first through hole.

36. The vehicle of claim 35, wherein: The raised portion further includes a first sealing member, which is arranged around the periphery of the first through hole and is sandwiched between the raised body and the first closing cover to seal the raised body and the first closing cover.

37. A vehicle according to claim 35 or 36, wherein: The first closure cover is mounted on the raised body by a threaded fastener; or, The first closing cover is slidably engaged with the raised body; or, The first closure cover is hinged to the raised body.

38. The vehicle of claim 36, wherein: The battery includes a temperature control component, and the temperature control component is sandwiched between the support plate and the battery component.

39. The vehicle of claim 38, wherein: The battery comprises a first adhesive layer, wherein the first adhesive layer is adhered between the support plate and the outer surface of the temperature control assembly; And / or, the battery comprises a third adhesive layer, wherein the third adhesive layer is adhered between the temperature control component and the outer surface of the battery component.

40. A vehicle as claimed in any one of claims 34 to 39, wherein: The battery assembly also includes a battery cell, which includes a shell having a first shell wall. The first shell wall includes a protrusion, at least part of which is located in the accommodating space, and the height of the protrusion does not exceed 77% of the height of the raised portion.

41. The vehicle of claim 40, wherein: The height dimension of the protrusion accounts for 21% to 53% of the height dimension of the raised portion.

42. A vehicle as claimed in any one of claims 34 to 41, wherein: The battery assembly includes a battery cell, and the battery cell includes a pole. The poles of at least two of the battery cells are located in the same accommodating space.

43. A vehicle as claimed in any one of claims 34 to 42, wherein: The vehicle includes a second insulating member disposed on an inner wall of the accommodating space.

44. The vehicle of claim 43, wherein: The battery assembly includes a battery cell, the battery cell includes a pole, and the second insulating member is arranged opposite to the pole.

45. A vehicle as claimed in any one of claims 34 to 44, wherein: The battery assembly also includes a busbar, at least part of which is located in the accommodating space, and the spacing between the inner wall of the accommodating space and the busbar along a first direction is not less than 1% of the size of the accommodating space along the first direction, and the first direction is perpendicular to the uplift direction of the uplifted portion.

46. ​​The vehicle of claim 45, wherein: The ratio of the distance between the inner wall of the accommodation space and the current collector along the first direction to the size of the accommodation space along the first direction is in a range of 2% to 10%.

47. A vehicle according to any one of claims 1 to 46, wherein: The receiving box comprises a first box wall, the first box wall is located at a side of the receiving box facing the supporting plate, and a part of the first box wall extends into the receiving space.

48. A vehicle according to any one of claims 47, wherein: The storage box includes a box body and a box cover, the first box wall forms the box cover, one side of the box body is opened to form a second opening, the box cover is arranged on the second opening to form a storage cavity with the box body, and the battery assembly is arranged in the storage cavity.

49. The vehicle of claim 48, wherein: The first box wall includes a box wall body and a second closing cover. The box wall body is provided with a second through hole. The second through hole is communicated with the accommodating cavity. The second closing cover is detachably connected to the box wall body to cover the second through hole.

50. The vehicle of claim 49, wherein: The box cover also includes a second sealing member, which is arranged around the periphery of the second through hole and is sandwiched between the box wall body and the second closing cover to seal the box wall body and the second closing cover.

51. A vehicle according to claim 49 or 50, wherein: The second closing cover is mounted on the box wall body by a threaded fastener; or, The second closing cover is slidably engaged with the box wall body; or, The second closing cover is hinged to the box wall body.

52. A vehicle according to any one of claims 49 to 51, wherein: The raised portion includes a raised body and a first closing cover, the raised body is provided with a first through hole, the first through hole is communicated with the accommodating space, and the first closing cover is detachably connected to the raised body to cover the first through hole; The second through hole and the first through hole are arranged opposite to each other.

53. A vehicle as claimed in any one of claims 47 to 52, wherein: The battery includes a temperature control component, and the temperature control component is sandwiched between the first box wall and the battery component.

54. The vehicle of claim 53, wherein: The battery comprises a second adhesive layer, the second adhesive layer being adhered between the first box wall and the outer surface of the temperature control assembly; And / or, the battery comprises a third adhesive layer, wherein the third adhesive layer is adhered between the temperature control component and the outer surface of the battery component.

55. A vehicle as claimed in any one of claims 47 to 54, wherein: A portion of the first box wall protrudes to form a boss, at least a portion of the boss extends into the accommodating space, and a side of the boss facing away from the accommodating space forms an accommodating portion, in which a portion of the battery assembly is located.

56. The vehicle of claim 55, wherein: The height dimension of the boss does not exceed 98.5% of the height dimension of the protrusion.

57. The vehicle of claim 55, wherein: The height dimension of the boss accounts for 33.3% to 53% of the height dimension of the protrusion.

58. A vehicle as claimed in any one of claims 55 to 57, wherein: The battery assembly also includes a battery cell, which includes a shell having a first shell wall. The first shell wall includes a protrusion, at least part of which is located in the accommodating portion, and the height of the protrusion does not exceed 77% of the height of the boss.

59. The vehicle of claim 58, wherein: The height dimension of the protrusion accounts for 36% to 53% of the height dimension of the boss.

60. A vehicle as claimed in any one of claims 55 to 57, wherein: The battery assembly includes a protruding portion, at least a portion of which is located in the receiving portion, and a height dimension of the protruding portion does not exceed 94% of a height dimension of the boss.

61. The vehicle of claim 60, wherein: The height dimension of the protruding portion accounts for 74% to 86% of the height dimension of the boss.

62. A vehicle as claimed in any one of claims 49 to 61, wherein: The battery assembly also includes a busbar, at least part of which is located in the accommodating portion, and the spacing between the inner wall of the accommodating portion and the busbar along a first direction is not less than 1% of the size of the accommodating portion along the first direction, and the first direction is perpendicular to the thickness direction of the first box wall.

63. The vehicle of claim 62, wherein: The ratio of the distance between the inner wall of the accommodation portion and the current collector along the first direction to the size of the accommodation portion along the first direction is in a range of 2% to 10%.

64. A vehicle as claimed in any one of claims 55 to 63, wherein: The battery assembly includes a battery cell, and the battery cell includes a pole. The poles of at least two of the battery cells are located in the same accommodating portion.

65. A vehicle as claimed in any one of claims 55 to 64, wherein: The battery includes a first insulating member, which is arranged on the inner wall of the accommodation portion.

66. The vehicle of claim 65, wherein: The battery assembly includes a battery cell, the battery cell includes a pole, and the first insulating member is arranged opposite to the pole.

67. The vehicle of claim 55, wherein: The box cover includes a box wall body and a second closing cover. The box wall body is provided with a second through hole, the second through hole is communicated with the accommodating cavity, the second closing cover is detachably connected to the box wall body to cover the second through hole, and part or all of the boss forms the second closing cover.

68. A vehicle as claimed in any one of claims 55 to 67, wherein: The length direction of the boss is the same as the length direction of the accommodating cavity, and the dimensions of the two along the length direction are the same; Alternatively, the length direction of the boss is the same as the width direction of the accommodating cavity, and the length dimension of the boss is the same as the width dimension of the first box wall.

69. A vehicle as claimed in any one of claims 55 to 68, wherein: The width of the boss does not exceed 500 mm; And / or, the height dimension of the boss does not exceed 300 mm.

70. A vehicle as claimed in any one of claims 55 to 69, wherein: The width of the boss ranges from 50 mm to 300 mm; And / or, the height dimension of the boss ranges from 5 mm to 100 mm.

71. A vehicle according to any one of claims 1 to 70, wherein: The width of the raised portion does not exceed 500 mm; And / or, the height dimension of the raised portion does not exceed 300 mm.

72. A battery for a vehicle, wherein: The vehicle includes a support plate, the battery is located on one side of the support plate, the support plate has a raised portion arranged away from the battery, the raised portion forms a storage space on a side facing the battery, the battery includes a storage box and a battery assembly, the battery assembly is accommodated in the storage box, the battery assembly includes a protruding portion, the protruding portion is used to protrude toward the support plate to extend into the storage space, and in a projection plane perpendicular to the protruding direction of the protruding portion, a projection of a portion of the battery assembly is located outside the projection of the protruding portion.

73. The battery of claim 72, wherein: A placement space is provided in the receiving box, the battery assembly is arranged in the placement space, one side of the placement space is opened to form a first opening, and the first opening is used for the support plate cover to be arranged thereon.

74. The battery of claim 73, wherein: The battery includes a temperature control component, and the temperature control component is arranged on a side of the battery component facing the first opening.

75. The battery of claim 74, wherein The battery comprises a first adhesive layer, and the first adhesive layer is used to bond the support plate and the outer surface of the temperature control component; And / or, the battery comprises a third adhesive layer, wherein the third adhesive layer is adhered between the temperature control component and the outer surface of the battery component.

76. The battery of claim 72, wherein: The receiving box comprises a first box wall, the first box wall is located at one side of the receiving box, and a part of the first box wall is used to extend into the receiving space.

77. The battery of claim 76, wherein The storage box includes a box body and a box cover, the first box wall forms the box cover, one side of the box body is opened to form a second opening, the box cover is arranged on the second opening to form a storage cavity with the box body, and the battery is arranged in the storage cavity.

78. The battery of claim 77, wherein The first box wall includes a box wall body and a second closing cover. The box wall body is provided with a second through hole. The second through hole is communicated with the accommodating cavity. The second closing cover is detachably connected to the box wall body to cover the second through hole.

79. The battery of claim 78, wherein The box cover also includes a second sealing member, which is arranged around the periphery of the second through hole and is sandwiched between the box wall body and the second closing cover to seal the box wall body and the second closing cover.

80. The battery of claim 78 or 79, wherein The second closing cover is mounted on the box wall body by a threaded fastener, or, The second closing cover is slidably engaged with the box wall body, or, The second closing cover is hinged to the box wall body.

81. A battery according to any one of claims 76 to 80, wherein Among the outer surfaces on opposite sides of a portion of the first box wall, one surface protrudes to form a boss, and the other surface forms a receiving portion, at least a portion of the boss is used to extend into the receiving space, and a portion of the battery assembly is located in the receiving portion.

82. The battery of claim 81, wherein The box cover includes a box wall body and a second closing cover. The box wall body is provided with a second through hole, the second through hole is communicated with the accommodating cavity, the second closing cover is detachably connected to the box wall body to cover the second through hole, and part or all of the boss forms the second closing cover.

Images