Battery, electric device, and energy storage device

Abstract

A battery, an electric device, and an energy storage device. The battery comprises: at least one battery cell (10), wherein each battery cell (10) has a pole (101) on a first surface (103) on one side in a first direction (X); an accommodating case (11), wherein an accommodating cavity is provided in the accommodating case (11), and each battery cell (10) is accommodated in the accommodating cavity; and a heat exchange assembly (14) provided on the first surface (103) of the battery cell (10) and used for exchanging heat with each battery cell (10), wherein the projection of the pole (101) along the first direction (X) within the first surface (103) does not overlap the projection of the heat exchange assembly (14) along the first direction (X) within the first surface (103).

Description

Batteries, electrical devices and energy storage devices Technical Field

[0001] The present disclosure relates to the technical field of battery production, and in particular to a battery, an electrical device, and an energy storage device. Background Art

[0002] With the promotion and popularization of the green development concept, 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. In addition, batteries are also being increasingly used in energy storage fields.

[0003] Batteries continuously release heat during operation, raising their internal temperature. High temperatures not only affect battery efficiency but also pose safety risks. Therefore, in addition to the battery cells, batteries also incorporate heat exchange components to maintain an appropriate operating temperature.

[0004] How to integrate heat exchange components into batteries is one of the issues that the industry is concerned about.

[0005] Summary of the Invention

[0006] In view of this, the embodiments of the present disclosure aim to provide a battery, an electrical device, and an energy storage device in which a heat exchange component and a pole share a horizontal space to improve space utilization.

[0007] To achieve the above objectives, the technical solution of the embodiment of the present disclosure is implemented as follows:

[0008] In a first aspect, an embodiment of the present disclosure provides a battery, comprising: at least one battery cell, each battery cell having a pole on a first surface on one side in a first direction; a containing box, wherein a containing cavity is provided in the containing box, and each battery cell is contained in the containing cavity; a heat exchange component, disposed on the first surface of the battery cell, for exchanging heat with each battery cell, wherein a projection of the pole on the first surface along the first direction and a projection of the heat exchange component on the first surface along the first direction do not overlap with each other.

[0009] In the battery of the disclosed embodiment, since both the terminal and the heat exchange assembly are disposed on the first surface, and the projection of the terminal along the first direction does not overlap with the projection of the heat exchange assembly along the first direction, the terminal and the heat exchange assembly share the horizontal space between the first surface and the wall of the storage box, thereby improving the space utilization within the storage chamber. This not only helps to reduce the size of the battery, but also helps to increase the battery's energy density. Since the battery cells and the heat exchange assembly are housed within the storage chamber of the storage box, the storage box can protect the battery cells and the heat exchange assembly. Since the heat exchange assembly is disposed on the first surface of the battery cells, the heat exchange assembly can exchange heat with the battery cells.

[0010] In some embodiments, the first surface has a first area and a second area, the poles are located in the first area, and the heat exchange components are located in the second area. Thus, the poles are concentrated in the first area, and the heat exchange components are concentrated in the second area, so that the poles located in the first area and the heat exchange components located in the second area do not interfere with each other.

[0011] In some embodiments, the number of the second regions is two, and the two second regions are located on both sides of the first region respectively.

[0012] Because the first area is located in the center and the two second areas are located on either side, the poles are concentrated in the first area, which is relatively central to the first surface. The space on either side of the poles can accommodate two heat exchange assemblies, respectively. The poles and heat exchange assemblies fully utilize the space in the accommodation cavity on the first surface. This compact and reasonable arrangement improves space utilization within the accommodation cavity, not only helping to reduce battery size but also helping to increase the battery's energy density.

[0013] In some embodiments, the number of the first regions is two, and the second region is located between the two first regions.

[0014] Because the second area is located in the center and the two first areas are located on either side, a heat exchange assembly is placed in the center of the first surface. The space on both sides of the heat exchange assembly is used to accommodate the poles. The poles and heat exchange assembly fully utilize the space in the accommodation cavity on the first surface. This compact and reasonable layout improves the space utilization within the accommodation cavity, not only helping to reduce the size of the battery, but also helping to increase the battery's energy density.

[0015] In some embodiments, the area of ​​the second region is larger than the area of ​​the first region.

[0016] As a result, the poles are concentrated in the smaller first area, leaving a larger area for the heat exchange component, and the contact area between the heat exchange component and the battery cell is larger, so that the heat exchange component can meet the heat exchange requirements of the battery cell.

[0017] In some embodiments, the plurality of battery cells are arranged at least along a second direction, the second direction is consistent with a width direction of the first surface, and the heat exchange assembly at least partially covers the second region of each of the battery cells.

[0018] Because the multiple battery cells are arranged along the second direction, both the first and second regions extend along the second direction, forming a relatively regular area for arranging the poles and heat exchange assembly. Because the heat exchange assembly at least partially covers the second region of each battery cell, the heat exchange assembly is in contact with each battery cell, enabling the heat exchange assembly to exchange heat with each battery cell.

[0019] In some embodiments, the heat exchange assembly includes: a heat exchange plate; and an adhesive layer, including a first adhesive layer provided on a surface of the heat exchange plate close to the battery cell, and the heat exchange plate is bonded to the battery cell through the first adhesive layer.

[0020] Because the heat exchange plate is bonded to the surface of the battery cell via the first adhesive layer, the contact between the heat exchange plate and the battery cell is relatively close, which helps to improve the heat exchange effect of the heat exchange plate on the battery cell. In addition, because the heat exchange plate and the battery cell are bonded into one piece, the structural strength of the battery cell is improved.

[0021] In some embodiments, the heat exchange assembly includes: a heat exchange plate; and an adhesive layer, the adhesive layer including a second adhesive layer provided on the surface of the heat exchange plate facing away from the battery cell, and the heat exchange plate is adhered to the containing box through the second adhesive layer.

[0022] Because the heat exchange plate is bonded to the inner wall of the storage box via a second adhesive layer, it is securely fixed within the storage cavity. This integral bonding of the heat exchange plate and the storage box helps enhance the box's structural strength. With adhesive layers applied to both sides of the heat exchange plate, the battery cells are securely fixed within the storage cavity, as the heat exchange plate's sides are bonded to the battery cells and the storage box, respectively.

[0023] In some embodiments, the heat exchange plate is configured to be in a flat plate shape, or the heat exchange plate is configured to be in an undulating shape along the first direction.

[0024] By constructing the heat exchange plate into a flat plate, it can closely conform to the surface of the battery cell, improving heat exchange efficiency. The flat plate has a simple structure and is easy to manufacture. By constructing the heat exchange plate into an undulating shape along a first direction, the plate can be compressed by forces in the first direction. If the distance between the surface of the battery cell and the inner wall of the container is small due to production tolerances, the undulating heat exchange plate can deform to accommodate the smaller distance, reducing the impact of production tolerances.

[0025] In some embodiments, the heat exchange plate is configured to be compressible along the first direction.

[0026] As a result, the heat exchange plate can be adapted to smaller gaps in the first direction, so that the heat exchange plate can not only continuously fit the battery cells and maintain a high heat exchange efficiency, but also reduce the impact of production tolerances.

[0027] In some embodiments, the heat exchange assembly located in the second area contacts the first surface of the battery and the inner wall surface of the containing box respectively.

[0028] Because the heat exchange assembly contacts the first surface and the inner wall of the container, respectively, it fully occupies the first surface's accommodating cavity, satisfying the required installation space. The heat exchange assembly is positioned between the first surface and the inner wall of the container, conforming to the first surface and ensuring high heat exchange efficiency between the heat exchange assembly and the battery cells.

[0029] In some embodiments, in the accommodating cavity, the battery cell is a long blade battery cell, and a plurality of the long blade battery cells are arranged along a second direction to form a battery cell group, the second direction is consistent with the width direction of the first surface, and in the battery cell group, the poles are arranged along the second direction, and the heat exchange assembly extends along the second direction.

[0030] By arranging the long-blade battery cells along the second direction, the poles are arranged in a straight line along the second direction, thereby providing a larger, more complete accommodating cavity on the side of the poles, meeting the space requirements for installing the heat exchange assembly. By arranging the heat exchange assembly within this space, the poles and the heat exchange assembly can fully utilize the accommodating cavity space on the first surface. Since the long-blade battery cells are arranged along the second direction and the heat exchange assembly extends along the second direction, the heat exchange assembly can cover multiple long-blade battery cells to exchange heat among them.

[0031] In some embodiments, in the accommodating cavity, the battery cell is a short-knife battery cell, and a plurality of battery cell units are arranged along the second direction to form a battery cell group. The battery cell unit includes two or more short-knife battery cells arranged in parallel along a third direction. The second direction is consistent with the width direction of the first surface, and the third direction is consistent with the length direction of the first surface. Two adjacent short-knife battery cells along the third direction are arranged in parallel with the poles close to each other or with the poles far away from each other. In the battery cell group, the poles are arranged along the second direction, and the heat exchange component extends along the second direction.

[0032] Because the multiple battery cells are arranged along the second direction, and adjacent short-blade battery cells along the third direction are juxtaposed with their poles close to or far from each other, the accommodating cavity on the first surface of the short-blade battery cell has a large, complete space, which can meet the space requirements for installing the heat exchange assembly. Because the heat exchange assembly extends along the second direction, the heat exchange assembly can cover multiple short-blade battery cells to exchange heat among them.

[0033] In some embodiments, the receiving box forms a receiving portion on a side facing the battery cell, and the electrode is at least partially received in the receiving portion.

[0034] By providing a receiving portion on the receiving box, on the one hand, it is helpful to adapt the shape of the space inside the receiving box to the contour shape formed by the pole, which is helpful to reduce the requirements for the arrangement of the pole; on the other hand, it is helpful to reduce the overall size and volume of the receiving box, improve the space utilization rate inside the receiving box, reduce the overall volume of the battery, and help to improve the energy density of the battery.

[0035] In some embodiments, a busbar is provided in the first region, the busbar is used to connect the poles of adjacent battery cells, and the busbar is at least partially accommodated in the accommodation portion.

[0036] This helps to make the spatial shape inside the storage box better adapt to the arrangement relationship between the busbar and the battery cell, so that the shape of the storage cavity can adapt to the shape of the battery cell, which helps to reduce the gap between the inner wall of the storage box and the battery cell and improve the space utilization of the battery.

[0037] In some embodiments, the battery further includes an electrical assembly, wherein the electrical assembly is at least partially disposed within the first region, and the electrical assembly within the first region is at least partially accommodated within the accommodation portion.

[0038] Thus, the first area integrates the terminals, current collector, and at least a portion of the electrical assembly. A housing portion corresponding to the first area is provided on the housing box to accommodate a larger number of components protruding from the surface of the battery cells, maximizing the use of the space within the housing portion. This helps to reduce the gap between the inner wall of the housing cavity and the battery cells, thereby improving the space utilization of the battery.

[0039] In some embodiments, the electrical kit includes at least one of a sampling structure, a battery management system, a relay, and a high voltage power distribution unit.

[0040] As a result, at least one of the sampling structure, battery management system, relay, and high-voltage power distribution unit can be accommodated in the accommodating portion, reducing the space occupied by the accommodating cavity where they are originally located. This helps to reduce the gap between the inner wall of the accommodating cavity and the battery cell, thereby improving the space utilization of the battery.

[0041] In some embodiments, the accommodating box has a boss, which is formed by the accommodating box bulging along the first direction toward the direction away from the battery cell, and the boss forms the accommodating portion on the side facing the battery cell, and the pole and at least a portion of the electrical kit are located in the accommodating portion and a gap is left between the boss and the inner wall.

[0042] Because the boss is formed by the housing box rising in a first direction away from the battery cell, the side of the boss facing the battery cell forms a housing portion. Therefore, the space of the housing portion can be increased by increasing the height of the boss within a certain range. The boss can be arranged according to the size of the components to be accommodated, accommodating as many components as possible in the housing portion, thereby reducing the space occupied by the components in the housing cavity. This helps to reduce the gap between the inner wall of the housing cavity and the battery cell, thereby improving the space utilization of the battery.

[0043] In some embodiments, the length direction of the boss is consistent with the second direction, the length of the boss along the second direction is greater than or equal to the length of the accommodating cavity along the second direction, and the second direction is consistent with the width direction of the first surface, or, the length direction of the boss is consistent with the third direction, the length of the boss along the third direction is greater than or equal to the length of the accommodating cavity along the third direction, and the third direction is consistent with the length direction of the first surface.

[0044] Because the length of the boss along the second direction is greater than or equal to the length of the accommodating cavity along the second direction, the projection of the boss along the first direction covers the range of all battery cells along the second direction, allowing the terminals of all battery cells to be accommodated within the boss. Because the length of the boss along the third direction is greater than or equal to the length of the accommodating cavity along the third direction, the boss has a larger accommodating area, capable of accommodating some terminals and a larger number of electrical components. This helps reduce the space occupied by the electrical components and other components in the accommodating cavity, thereby improving the battery's space utilization.

[0045] In some embodiments, a length of the boss along the second direction or the third direction is no greater than 500 mm.

[0046] Therefore, on the one hand, it is beneficial for the surface of the receiving box to have a larger flat area so as to adapt to other components in the electrical device and reduce the adverse effects of the boss on the layout of other components in the electrical device; on the other hand, it reduces the adverse effects of the boss's reduced structural strength due to its large size and reduces the probability of damage to components in the receiving part due to deformation of the boss.

[0047] In some embodiments, a length of the boss along the second direction or the third direction is in a range of 50 mm to 300 mm.

[0048] In this way, the space in the receiving portion can be sufficient to accommodate the protruding components on the battery cell, and the receiving box can maintain sufficient structural strength.

[0049] In some embodiments, a protrusion is provided in the first region of the battery cell, the pole is provided on a surface of the protrusion facing the first direction, and at least a portion of the protrusion is located in the accommodating portion.

[0050] By arranging a protrusion in the first area of ​​the battery cell and arranging the pole on the protrusion, the pole is isolated from the second area, and the heat exchange component located in the second area and the pole do not interfere with each other, thereby reducing the risk of electrical connection between the pole and the heat exchange component; it is also possible to increase the height of the pole in the first direction without reducing the strength of the pole, so as to facilitate the provision of a heat exchange component accommodating space of appropriate height as needed.

[0051] In some embodiments, the electrode column includes a positive electrode column and a negative electrode column, and the positive electrode column and the negative electrode column are arranged on the protrusion at intervals.

[0052] By arranging the positive electrode column and the negative electrode column at intervals on the protrusion, the positive electrode column and the negative electrode column are relatively independent and do not interfere with each other, thereby reducing the risk of short circuit between the two.

[0053] In some embodiments, the number of the protrusion is one, the positive electrode column and the negative electrode column are spaced apart from each other on the protrusion, and the line connecting the positive electrode column and the negative electrode column is parallel to the length direction of the first surface, or the line connecting the positive electrode column and the negative electrode column is parallel to the width direction of the first surface.

[0054] Because the positive and negative poles are located on the same protrusion, only one protrusion needs to be manufactured to provide a mounting location for both poles, which helps reduce the number of manufacturing steps for the first shell wall and lowers production costs. By arranging the positive and negative poles so that the line connecting them is parallel to the length direction of the first surface, or arranging the positive and negative poles so that the line connecting them is parallel to the width direction of the first surface, the arrangement is more regular, which facilitates later maintenance. Moreover, because the protrusion area for arranging two poles can be designed to be larger than the protrusion area for arranging a single pole, it helps to improve the strength of the pole installation area in the battery cell.

[0055] In some embodiments, at least two of the protrusions are spaced apart from each other, the positive electrode column is provided on one of the protrusions, and the negative electrode column is provided on the other of the protrusions.

[0056] Since at least two protrusions are provided, and the positive electrode column and the negative electrode column are respectively provided on different protrusions, on the one hand, it is beneficial to reduce the volume of a single protrusion, making the structure more compact, which is beneficial to reducing the volume of the battery; on the other hand, there is a large distance between the positive electrode column and the negative electrode column, so that the two can be relatively independent and do not interfere with each other, reducing the risk of short circuit between the two.

[0057] In some embodiments, a length direction of the first surface and a length direction of the protrusion are consistent with a third direction, and along the third direction, a length of the protrusion accounts for 10% to 30% of a length of the battery cell.

[0058] Along the third direction, because the ratio of the protrusion length to the battery cell length is greater than or equal to 10%, the positive and negative electrode posts, when mounted on the same protrusion, maintain a sufficient safety distance from each other, reducing the risk of short circuits. Along the third direction, because the ratio of the protrusion length to the battery cell length is less than or equal to 30%, at least 70% of the battery cell length along the third direction is reserved for the heat exchange assembly, providing ample installation space for the heat exchange assembly.

[0059] In some embodiments, along the third direction, the distance between the center point of the protrusion and the center point of the first surface is 0% of the length of the battery cell, or the distance between the center point of the protrusion and the center point of the first surface is in the range of 45% to 47.5% of the length of the battery cell.

[0060] Along the third direction, because the distance between the center point of the protrusion and the center point of the first surface is 0% of the length of the battery cell, sufficient space is left on both sides of the protrusion in the third direction to install a heat exchange component. Along the third direction, because the distance between the center point of the protrusion and the center point of the first surface is in the range of 45% to 47.5% of the length of the battery cell, sufficient space is left on one side of the protrusion to install a heat exchange component.

[0061] In some embodiments, along the first direction, the height of the pole provided on the protrusion from the first surface of the battery is greater than or equal to the height of the heat exchange component, and a gap is left between the protrusion, the pole, the electrical kit and the inner wall surface of the boss.

[0062] As a result, the projection, the pole and the electrical assembly are not squeezed by the inner wall surface of the boss when they are placed in the receiving portion.

[0063] In some embodiments, the receiving box is provided with a through hole that opens the first area to the outside, and a detachable closing cover is provided at the through hole, and a projection of the through hole along the first direction overlaps with a projection of the first area along the first direction.

[0064] Because the storage box is provided with a through-hole, the interior of the battery is connected to the outside world. Therefore, maintenance personnel can perform internal maintenance of the battery through the through-hole. By removably installing a closure cover on the through-hole, the closure cover can seal the through-hole when installed, isolating the storage chamber from the outside world, thereby allowing the battery cell to operate in a stable environment. When the closure cover is removed from the through-hole, the interior of the battery is connected to the outside world through the through-hole, allowing for maintenance of the battery interior. Because the projection of the through-hole along the first direction overlaps with the projection of the first area along the first direction, maintenance personnel can directly access at least a portion of the terminal through the through-hole.

[0065] In some embodiments, a sealing member is provided around the through hole, and the sealing member is used to seal between the through hole and the closing cover.

[0066] As a result, the closing cover and the through hole can maintain a relatively tight sealing effect, preventing external dust and liquid from entering the accommodating cavity and damaging the battery cell.

[0067] In some embodiments, the closing cover is configured as a flat plate, or the closing cover is configured as a convex shape relative to the surface of the receiving box, and the closing cover forms the receiving portion on the side facing the battery cell, and at least a portion of the pole is located in the receiving portion via the through hole.

[0068] By forming the closing cover into a flat plate, the structure is simplified and the processing of the closing cover is facilitated. Since the closing cover is formed in a raised shape relative to the surface of the storage box, and a receiving portion is formed on the side of the closing cover facing the battery cell, at least a portion of the terminal is placed in the receiving portion of the closing cover. This reduces the space occupied by the terminal in the storage cavity, helping to reduce the volume of the storage box.

[0069] In some embodiments, the through hole is opened on a wall surface of the boss facing the battery cell.

[0070] As a result, the accommodating portion of the cover and the accommodating portion of the boss overlap to form a larger space, which can accommodate more terminals and even electrical components, further reducing the space occupied by the protruding portion of the battery cell. The through hole connects the accommodating portion of the boss to the outside world, allowing maintenance personnel to inspect components such as terminals within the accommodating portion.

[0071] In a second aspect, the present disclosure further provides an electrical device comprising the battery as described above, wherein the battery serves as a power source for the electrical device.

[0072] Since the electrical device includes a battery that fully utilizes the internal space of the storage box, the space reserved for the battery in the electrical device can be reduced, or the overall energy of the battery can be increased while maintaining the volume, thereby helping to increase the layout freedom of the battery and its surrounding structures in the electrical device, and helping to improve the battery life / standby capability of the electrical device.

[0073] In some embodiments, a plurality of the battery cells are arranged along a second direction to form a battery cell queue, the second direction is consistent with the width direction of the first surface, the surface of the containing box is configured to have a boss extending along the second direction, the boss is formed by the surface of the containing box bulging along the first direction toward the direction away from the battery cell, the electrical device is a vehicle, and the vehicle also includes at least one seat, the battery is located on one side of the seat along the up and down direction of the vehicle and the through hole of the battery faces the other side of the up and down direction of the vehicle, the up and down direction of the vehicle is consistent with the first direction, the first direction is perpendicular to the second direction, and the projection of the seat on the battery along the up and down direction of the vehicle is outside the range of the boss.

[0074] Because the housing's surface features a raised platform, it provides additional space for battery components, reducing the space required for the battery or increasing the battery's overall energy capacity while maintaining its volume, thereby improving the vehicle's range. Because the seat's vertical projection onto the battery lies outside the area of ​​the raised platform, the seat and the raised platform utilize the same horizontal space, improving space efficiency within the vehicle and minimizing their impact on each other. Because the battery is located on one side of the seat in the vertical direction, with its access hole facing the other side, battery maintenance can be performed inside the vehicle without disassembly, saving time and effort.

[0075] In some embodiments, the vehicle includes at least one seat row, the seat row includes at least two seats arranged along the left-right direction of the vehicle, the left-right direction of the vehicle is the third direction, the third direction is perpendicular to both the first direction and the second direction, along the left-right direction of the vehicle, the boss is located between adjacent seats in the same seat row, and / or the boss is located on both sides of the same seat row in the left-right direction of the vehicle.

[0076] As a result, the seat is not affected by the protrusion when it is adjusted forward and backward. In addition, the location of the protrusion is staggered with the user's use position, which reduces the interference of the protrusion on the user's normal activities in the car, improves the user experience, and increases the space utilization rate in the vehicle.

[0077] In some embodiments, the battery cells are arranged in a battery cell array along the second direction and the third direction. When the number of the battery cells arranged along the third direction is greater than the number of the battery cells arranged along the second direction, the number of the battery cells arranged along the second direction does not exceed 2; when the number of the battery cells arranged along the third direction is less than the number of the battery cells arranged along the second direction, the number of the battery cells arranged along the third direction does not exceed 4.

[0078] As a result, the size of the battery does not exceed the size of a conventional vehicle chassis, allowing the battery to be adapted to most vehicles.

[0079] In a third aspect, the present disclosure further provides an energy storage device, comprising the battery as described above, wherein the battery is configured to store and provide electrical energy.

[0080] Since the energy storage device includes batteries that fully utilize the internal space of the battery box, the space reserved for the batteries by the energy storage device can be reduced or the overall energy of the batteries can be increased while maintaining the volume, thereby helping to reduce the space required for the energy storage device or increase the energy storage capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] FIG1 is an exploded perspective view of a battery with a terminal disposed in the middle of a battery cell according to an embodiment of the present disclosure;

[0082] FIG2 is a partial enlarged view of portion A in FIG1 in one embodiment of the present disclosure;

[0083] FIG3 is an exploded side view of a battery with a terminal disposed in the middle of a battery cell according to an embodiment of the present disclosure;

[0084] FIG4 is a top view of a battery with a terminal disposed in the middle of a battery cell according to an embodiment of the present disclosure;

[0085] FIG5 is a cross-sectional view along the BB direction of FIG4 in one embodiment of the present disclosure;

[0086] FIG6 is a partial enlarged view of portion C in FIG5 in one embodiment of the present disclosure;

[0087] FIG7 is a schematic diagram of a long-blade battery cell with a pole in the middle in one embodiment of the present disclosure;

[0088] FIG8 is a schematic diagram of a long-blade battery cell with poles on both sides according to an embodiment of the present disclosure;

[0089] FIG9 is a schematic diagram of short-blade battery cells arranged in parallel with their poles spaced apart from each other in one embodiment of the present disclosure;

[0090] FIG10 is a schematic diagram of a short-blade battery cell arranged in parallel with its poles close to each other in one embodiment of the present disclosure;

[0091] FIG11 is an exploded perspective view of a battery with terminals on both sides of a battery cell according to an embodiment of the present disclosure;

[0092] FIG12 is a partial enlarged view of portion D in FIG11 according to an embodiment of the present disclosure;

[0093] FIG13 is a top view of a battery with terminals on both sides of a battery cell according to an embodiment of the present disclosure;

[0094] FIG14 is a cross-sectional view along the EE direction of FIG13 in one embodiment of the present disclosure;

[0095] FIG15 is a partial enlarged view of portion F in FIG14 according to an embodiment of the present disclosure;

[0096] FIG16 is an exploded view of a heat exchange assembly according to an embodiment of the present disclosure;

[0097] FIG17 is an exploded view of a heat exchange plate according to an embodiment of the present disclosure;

[0098] FIG18 is an exploded perspective view of a battery with a boss provided in the middle of a container according to an embodiment of the present disclosure;

[0099] FIG19 is a top view of a battery with a boss provided in the middle of a container according to an embodiment of the present disclosure;

[0100] FIG20 is a cross-sectional view along the GG direction of FIG19 in one embodiment of the present disclosure;

[0101] FIG21 is a partial enlarged view of portion H in FIG20 according to an embodiment of the present disclosure;

[0102] FIG22 is an exploded perspective view of a battery with bosses provided on both sides of a container according to an embodiment of the present disclosure;

[0103] FIG23 is a top view of a battery with bosses provided on both sides of a container according to an embodiment of the present disclosure;

[0104] FIG24 is a cross-sectional view along direction II of FIG23 in one embodiment of the present disclosure;

[0105] FIG25 is a partial enlarged view of portion J in FIG24 according to an embodiment of the present disclosure;

[0106] FIG26 is an exploded perspective view of a container having a through hole and a closing cover in accordance with an embodiment of the present disclosure;

[0107] FIG27 is an exploded perspective view of a through hole and a closing cover provided on a boss in one embodiment of the present disclosure;

[0108] FIG28 is a schematic diagram of a convex closure cover according to an embodiment of the present disclosure;

[0109] FIG29 is a schematic diagram of a battery with a boss installed on a vehicle according to an embodiment of the present disclosure;

[0110] FIG30 is a schematic diagram of FIG29 from another perspective according to an embodiment of the present disclosure;

[0111] FIG31 is a top view of a battery with a boss installed on a vehicle according to an embodiment of the present disclosure;

[0112] FIG32 is a cross-sectional view of FIG31 along the KK direction in one embodiment of the present disclosure.

[0113] Explanation of the reference numerals: 10, battery cell; 101, pole; 102, protrusion; 103, first surface; 1031, first area; 1032, second area; 11, storage box; 111, boss; 112, closing cover; 113, through hole; 114, seal; 12, busbar; 13, electrical kit; 14, heat exchange assembly; 141, heat exchange plate; 1411, flow channel; 142, adhesive layer; 1421, first adhesive layer; 1422, second adhesive layer; 15, seat; X, first direction (up and down direction of the vehicle); Y, second direction; Z, third direction (left and right direction of the vehicle). DETAILED DESCRIPTION

[0114] 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.

[0115] 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.

[0116] 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.

[0117] The vehicle can be a fuel-powered vehicle, a gas-powered vehicle, or a new energy vehicle. The latter can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle. The vehicle is equipped with a battery, which can be located at the bottom, front, or rear of the vehicle. The battery can be used to power the vehicle, for example, as a power source for operation. The vehicle may also include a controller and a motor. The controller controls the battery to power the motor, for example, for starting the vehicle, navigation, and operating power requirements during driving.

[0118] In some embodiments of the present disclosure, the battery can serve not only as the operating power source of the vehicle, but also as the driving power source of the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0119] 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 supply power to an electrical device. 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] In the embodiments of the present disclosure, the battery may also be a single physical module (e.g., a battery module or battery) 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] In the description of the embodiments of the present disclosure, for ease of explanation, as indicated by the arrows in FIG1 , the direction indicated by arrow X is the first direction, the direction indicated by arrow Y is the second direction and the width direction of the first surface, and the direction indicated by arrow Z is the third direction and the length direction of the first surface. When the battery is installed in a vehicle, the direction indicated by arrow X also represents the up-down direction of the vehicle, and the direction indicated by arrow Z also represents the left-right direction of the vehicle. The direction indicated by arrow X along the vertical direction is referred to as "up," and the opposite direction is referred to as "down."

[0132] 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.

[0133] 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.

[0134] The following describes the embodiments of the present disclosure in detail.

[0135] With the promotion and popularization of the green development concept, 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. In addition, batteries are also being increasingly used in energy storage fields.

[0136] Batteries continuously release heat during operation, raising their internal temperature. High temperatures not only affect battery efficiency but also pose safety risks. Therefore, in addition to the battery cells, batteries also incorporate heat exchange components to maintain an appropriate operating temperature.

[0137] How to integrate heat exchange components into batteries is one of the issues that the industry is concerned about.

[0138] The inventors of the present disclosure hope to develop a structure that can improve the space utilization inside the battery, thereby helping to reduce the volume of the battery container and improve the energy density of the battery.

[0139] Based on such a design concept, the inventors of the present disclosure designed a battery comprising at least one battery cell, each battery cell having a pole on the first surface on one side in a first direction; a containing box having a containing cavity provided therein, wherein each battery cell is contained in the containing cavity; and a heat exchange component disposed on the first surface of the battery cell for exchanging heat with each battery cell, wherein the projection of the pole on the first surface along the first direction and the projection of the heat exchange component on the first surface along the first direction do not overlap with each other.

[0140] Because both the pole and the heat exchange assembly are located on the first surface, and the projection of the pole along the first direction does not overlap with the projection of the heat exchange assembly along the first direction, the pole and the heat exchange assembly share the horizontal space between the first surface and the wall of the storage box, improving the space utilization within the storage chamber. This not only helps to reduce the size of the battery but also helps to increase the battery's energy density. Because the battery cells and the heat exchange assembly are housed within the storage chamber of the storage box, the storage box can protect the battery cells and the heat exchange assembly. Because the heat exchange assembly is located on the first surface of the battery cells, the heat exchange assembly can exchange heat with the battery cells.

[0141] The following is a description with reference to the accompanying drawings.

[0142] FIG1 is an exploded three-dimensional view of a battery with a pole in the middle of a battery cell in an embodiment of the present disclosure; FIG2 is a partial enlarged view of portion A in FIG1 in an embodiment of the present disclosure; FIG3 is an exploded side view of a battery with a pole in the middle of a battery cell in an embodiment of the present disclosure; FIG4 is a top view of a battery with a pole in the middle of a battery cell in an embodiment of the present disclosure; FIG5 is a cross-sectional view along the BB direction of FIG4 in an embodiment of the present disclosure; FIG6 is a partial enlarged view of portion C in FIG5 in an embodiment of the present disclosure; FIG7 is a schematic diagram of a long knife battery cell with a pole in the middle in an embodiment of the present disclosure; FIG8 is a schematic diagram of a long knife battery cell with poles on both sides in an embodiment of the present disclosure; FIG9 is a schematic diagram of a long knife battery cell in an embodiment of the present disclosure FIG10 is a schematic diagram of short-blade battery cells arranged in parallel with their poles far from each other in an embodiment of the present disclosure; FIG11 is an exploded perspective view of a battery with poles provided on both sides of a battery cell in an embodiment of the present disclosure; FIG12 is a partial enlarged view of portion D in FIG11 in an embodiment of the present disclosure; FIG13 is a top view of a battery with poles provided on both sides of a battery cell in an embodiment of the present disclosure; FIG14 is a cross-sectional view of FIG13 along the EE direction in an embodiment of the present disclosure; FIG15 is a partial enlarged view of portion F in FIG14 in an embodiment of the present disclosure; FIG16 is an exploded view of a heat exchange assembly in an embodiment of the present disclosure; Figure 17 is an exploded view of a heat exchange plate in an embodiment of the present disclosure; Figure 18 is an exploded stereoscopic view of a battery with a boss provided in the middle of a container in an embodiment of the present disclosure; Figure 19 is a top view of a battery with a boss provided in the middle of a container in an embodiment of the present disclosure; Figure 20 is a cross-sectional view along the GG direction of Figure 19 in an embodiment of the present disclosure; Figure 21 is a partial enlarged view of the H portion in Figure 20 in an embodiment of the present disclosure; Figure 22 is an exploded stereoscopic view of a battery with bosses provided on both sides of a container in an embodiment of the present disclosure; Figure 23 is a top view of a battery with bosses provided on both sides of a container in an embodiment of the present disclosure; Figure 24 is a cross-sectional view along the II direction of Figure 23 in an embodiment of the present disclosure ; Figure 25 is a partial enlarged view of part J in Figure 24 in one embodiment of the present disclosure; Figure 26 is an exploded three-dimensional view of a through hole and a closed cover provided on the containing box in one embodiment of the present disclosure; Figure 27 is an exploded three-dimensional view of a through hole and a closed cover provided on the boss in one embodiment of the present disclosure; Figure 28 is a schematic diagram of a raised closed cover in one embodiment of the present disclosure; Figure 29 is a schematic diagram of a battery provided with a boss installed on a vehicle in one embodiment of the present disclosure; Figure 30 is a schematic diagram of Figure 29 in another perspective in one embodiment of the present disclosure; Figure 31 is a top view of a battery provided with a boss installed on a vehicle in one embodiment of the present disclosure; Figure 32 is a sectional view of Figure 31 along the KK direction in one embodiment of the present disclosure.

[0143] In a first aspect, as shown in Figures 1 to 6, 11 to 15, and 18 to 27, the present disclosure provides a battery, comprising: at least one battery cell 10, each battery cell 10 having a pole 101 on a first surface 103 on one side in a first direction X; a receiving box 11, wherein a receiving cavity is provided in the receiving box 11, and each battery cell 10 is received in the receiving cavity; a heat exchange assembly 14, disposed on the first surface 103 of the battery cell 10, for exchanging heat with each battery cell 10, wherein a projection of the pole 101 on the first surface 103 along the first direction X and a projection of the heat exchange assembly 14 on the first surface 103 along the first direction X do not overlap with each other.

[0144] The containing box 11, which is the box body forming the outer contour of the battery, is used to accommodate other components of the battery 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, and reduces the adverse effects of collisions with external objects and entry of foreign matter on the normal operation of the battery during the transportation and use of the battery.

[0145] The heat exchange component 14 is provided with a flow channel 1411 and a heat exchange medium inside. The heat exchange medium can flow in the flow channel 1411 to transfer heat from one area of ​​the heat exchange component 14 to another area, thereby achieving the purpose of adjusting the temperature of the object in contact with the heat exchange component 14.

[0146] The pole 101 is provided on the surface of the battery cell 10 and is used to electrically connect to the components in the battery cell 10 that realize electrochemical reactions, so as to output or input electric energy into or out of the battery cell 10 through the pole 101 .

[0147] The first direction X refers to a direction perpendicular to any surface of the battery cell 10 .

[0148] The first surface 103 refers to any surface of the battery cell 10 and is perpendicular to the first direction X.

[0149] Optionally, the storage box 11 is constructed as a hollow box with a storage cavity. For example, six plate-like surfaces are joined together to form a box wall, and the six plate-like surfaces enclose the storage cavity. Alternatively, a box with an open end is connected to a cover that closes the opening to form a box wall, and the storage cavity is enclosed between the cover 112 and the box.

[0150] Alternatively, the box wall is constructed as a box body with one end open, the box body has a receiving cavity, and the battery cell 10 placed in the receiving cavity is exposed to the outside. When the battery is installed in an electrical device, a part of the electrical device forms a cover to close the opening, thereby sealing the receiving cavity.

[0151] The battery cell 10 is constructed in the shape of a rectangular parallelepiped, and any of the six surfaces of the battery cell 10 can be the first surface 103. A pole 101 is provided on the surface of the battery cell 10. When there is only one battery cell 10, the pole 101 can be provided on any surface of the battery cell 10. When there are two battery cells 10, the battery cells 10 can be arranged along the second direction Y or along the third direction Z, and no pole 101 is provided on adjacent surfaces of the battery cells 10. The pole 101 is provided in the space between the battery cell 10 and the wall of the storage box 11. When there are multiple battery cells 10, the battery cells 10 are arranged along the second direction Y and / or the third direction Z, and no pole 101 is provided between every two adjacent battery cells 10. The pole 101 is provided in the space between the battery cell 10 and the wall of the storage box 11.

[0152] The length direction of the first surface 103 is parallel to the longest side of the first surface 103, and the width direction of the first surface 103 is parallel to the shortest side of the first surface 103. The second direction Y is parallel to the length direction of the first surface 103, and the third direction Z is parallel to the length direction of the first surface 103.

[0153] The heat exchange assembly 14 is disposed on the surface of the battery cell 10 on which the pole 101 is disposed, and is spaced apart from the pole 101. In other words, the pole 101 is disposed on the first surface 103 on one side of the battery cell 10 in the first direction X, and the heat exchange assembly 14 is also disposed on the first surface 103, and the projection of the pole 101 along the first direction X does not overlap with the projection of the heat exchange assembly 14 along the first direction X. When the battery cells 10 are arranged along the second direction Y or the third direction Z, the poles 101 form a regular area arranged in a straight line, and the heat exchange assembly 14 can be disposed in other areas outside of this area. Depending on the size and number of the other areas, one or more heat exchange assemblies 14 can be disposed, and the present disclosure does not impose any special restrictions on the number of heat exchange assemblies 14 disposed.

[0154] In the battery of the disclosed embodiment, the pole 101 and the heat exchange assembly 14 are both disposed on the first surface 103, and the projection of the pole 101 along the first direction X and the projection of the heat exchange assembly 14 along the first direction X do not overlap. The projection here refers to the projection within the same plane perpendicular to the first direction X, for example, both can be projected onto the first surface 103. Therefore, the pole 101 and the heat exchange assembly 14 share the horizontal space between the first surface 103 and the wall of the container 11, thereby improving the space utilization within the container, not only helping to reduce the size of the battery, but also helping to increase the energy density of the battery. Since the battery cell 10 and the heat exchange assembly 14 are housed within the container 11, the container 11 can protect the battery cell 10 and the heat exchange assembly 14. Since the heat exchange assembly 14 is disposed on the first surface 103 of the battery cell 10, the heat exchange assembly 14 can exchange heat with the battery cell 10.

[0155] In some embodiments, as shown in FIG. 7 to FIG. 10 , the first surface 103 has a first area 1031 and a second area 1032 . The pole 101 is disposed in the first area 1031 , and the heat exchange assembly 14 is disposed in the second area 1032 .

[0156] The first surface 103 is divided into two areas: a first area 1031 where the pole 101 is disposed and a second area 1032 where the heat exchange assembly 14 is disposed. The first surface 103 may be divided into a plurality of first areas 1031 and / or second areas 1032 .

[0157] For a single battery cell 10, the area of ​​the first region 1031 can be larger than the projection of the electrode 101 onto the first surface 103, and the edge of the first region 1031 can be located outside the outline of the electrode 101. Two electrodes 101 are typically provided, and the area occupied by the electrode 101 itself and the area between the two electrodes 101 are considered the scope of the first region 1031. The length of the first region 1031 in the second direction Y is greater than the maximum distance between the edges of the two electrodes 101 in the second direction Y. Optionally, the length of the first region 1031 in the second direction Y is the same as the length of the first surface 103 in the second direction Y.

[0158] If the distance between the two poles 101 along the third direction Z is small, the length of the first area 1031 in the third direction Z is greater than the maximum distance between the edges of the two poles 101 in the third direction Z; if the distance between the two poles 101 along the third direction Z is large, two first areas 1031 are set, and the poles 101 are arranged in a one-to-one correspondence with the first areas 1031, and the length of the first area 1031 in the third direction Z is greater than the edge distance between the poles 101 in the third direction Z.

[0159] Among them, along the third direction Z, when the maximum distance between the outer contours of the two poles 101 is greater than half the length of the first surface 103, the distance between the two poles 101 along the third direction Z is considered to be large; otherwise, the distance between the two poles 101 along the third direction Z is considered to be small.

[0160] For the multiple battery cells 10, the multiple battery cells 10 are arranged along the second direction Y, so that the poles 101 extend along the second direction Y, and the first region 1031 extends along the second direction Y. That is, the first region 1031 extends from the battery cell 10 located on one side in the second direction Y to the battery cell 10 located on the other side in the second direction Y. The length of the first region 1031 in the third direction Z is greater than the maximum distance between the edges of the poles 101 in the third direction Z.

[0161] If the distance between the two poles 101 in each battery cell 10 along the third direction Z is small, the length of the first area 1031 in the third direction Z is greater than the maximum distance between the edges of the two poles 101 in the third direction Z; if the distance between the two poles 101 in each battery cell 10 along the third direction Z is large, two first areas 1031 are set, and the poles 101 located on the same side are set in the same first area 1031, and the length of the first area 1031 in the third direction Z is greater than the edge distance in the third direction Z of the poles 101 located on the same side.

[0162] The entire area of ​​the first surface 103 except the first area 1031 is regarded as the second area 1032 , and the heat exchange component 14 is disposed in at least a portion of the second area 1032 .

[0163] It is understandable that the first region 1031 and the second region 1032 may both be configured as a rectangle, a parallelogram, etc., and the present disclosure does not impose any special limitation on the shapes of the first region 1031 and the second region 1032 .

[0164] Thus, the poles 101 are concentrated in the first area 1031 , and the heat exchange components 14 are concentrated in the second area 1032 . The poles 101 in the first area 1031 and the heat exchange components 14 in the second area 1032 do not interfere with each other.

[0165] In some embodiments, as shown in Figures 1 to 7, 10, 18 to 21, 26 and 27, there are two second regions 1032, and the two second regions 1032 are located on both sides of the first region 1031 respectively.

[0166] The first surface 103 can be divided into two second regions 1032 and one first region 1031. The first region 1031 extends from one end of the first surface 103 to the other end of the first surface 103, separating the first surface 103 into two second regions 1032. The two second regions 1032 are located on both sides of the first region 1031 respectively.

[0167] The two second regions 1032 have the same area and shape, and the first region 1031 is located on the center line of the first surface 103 .

[0168] Because the first region 1031 is located in the middle and the two second regions 1032 are located on either side, the poles 101 are concentrated in the first region 1031 located relatively in the middle of the first surface 103 (for example, concentrated in the first region 1031 extending along the midline of the first surface 103 and symmetrical about the midline). The space on either side of the pole 101 can be used to respectively accommodate two heat exchange assemblies 14. The pole 101 and the heat exchange assembly 14 fully utilize the accommodation cavity space on the first surface 103. This compact and reasonable arrangement improves the space utilization rate within the accommodation cavity, which not only helps to reduce the size of the battery, but also helps to increase the energy density of the battery.

[0169] In some embodiments, as shown in FIG. 8 , FIG. 9 , FIG. 11 to FIG. 15 , and FIG. 22 to FIG. 25 , the number of the first regions 1031 is two, and the second region 1032 is located between the two first regions 1031 .

[0170] The first surface 103 can be divided into two first regions 1031 and one second region 1032. The second region 1032 extends from one end of the first surface 103 to the other end of the first surface 103, separating the first surface 103 into two first regions 1031. The two first regions 1031 are located on both sides of the second region 1032 respectively.

[0171] The two first regions 1031 have the same area and shape, and the second region 1032 is located on the center line of the first surface 103 .

[0172] Because the second area 1032 is located in the middle and the two first areas 1031 are located on either side, a heat exchange assembly 14 is disposed in the middle of the first surface 103. The spaces on both sides of the heat exchange assembly 14 are used to accommodate the poles 101. The poles 101 and the heat exchange assembly 14 fully utilize the space of the accommodation cavity on the first surface 103. This compact and reasonable arrangement improves the space utilization within the accommodation cavity, which not only helps to reduce the size of the battery, but also helps to increase the energy density of the battery.

[0173] In some embodiments, the area of ​​the second region 1032 is larger than the area of ​​the first region 1031 .

[0174] Optionally, a first region 1031 and two second regions 1032 are provided. The lengths of the first region 1031 and the second region 1032 in the second direction Y are both the same as the length of the first surface 103 in the second direction Y. The length of the first region 1031 in the third direction Z is no greater than half the length of the first surface 103 in the third direction Z, so that the two poles 101 are arranged close to each other in the third direction Z. A heat exchange assembly 14 is provided in at least one of the two second regions 1032. Furthermore, the area of ​​the second region 1032 is larger than the contact area required by the heat exchange assembly 14 to meet the heat exchange requirements of the battery cell 10.

[0175] Alternatively, two first regions 1031 and one second region 1032 may be provided. The lengths of the first and second regions 1031, 1032 in the second direction Y are both the same as the length of the first surface 103 in the second direction Y. The two first regions 1031 are located on either side of the first surface 103 in the third direction Z. The length of the first region 1031 in the third direction Z is greater than the edge distance of the pole 101 in the third direction Z located in the region. Furthermore, the area of ​​the second region 1032 is greater than the contact area required by the heat exchange assembly 14 to meet the heat exchange requirements of the battery cell 10.

[0176] As a result, the poles 101 are concentrated in the smaller first area 1031 , leaving a larger area for the heat exchange assembly 14 . The contact area between the heat exchange assembly 14 and the battery cell 10 is larger, so that the heat exchange assembly 14 can meet the heat exchange requirements of the battery cell 10 .

[0177] In some embodiments, as shown in Figures 1, 11, 18, 22, 26 and 27, multiple battery cells 10 are arranged at least along a second direction Y, the second direction Y is consistent with the width direction of the first surface 103, and the heat exchange assembly 14 at least partially covers the second area 1032 of each battery cell 10.

[0178] Optionally, the plurality of battery cells 10 are arranged along the second direction Y, and the first region 1031 and the second region 1032 both extend along the second direction Y. The heat exchange assembly 14 is disposed in the second region 1032 and is in contact with each battery cell 10 .

[0179] Alternatively, the plurality of battery cells 10 are arranged along a third direction Z. On two adjacent battery cells 10 , the first regions 1031 and the second regions 1032 alternate with each other. The heat exchange assembly 14 is disposed in at least one second region 1032 on each battery cell 10 .

[0180] Alternatively, multiple battery cells 10 are arranged along the third direction Z to form a battery cell unit, and multiple battery cell units are arranged along the second direction Y. The first region 1031 and the second region 1032 both extend along the second direction Y, and the first region 1031 and the second region 1032 alternate with each other along the third direction Z. The heat exchange assembly 14 is disposed within at least one second region 1032 on each battery cell 10 .

[0181] Because the multiple battery cells 10 are arranged along the second direction Y, the first region 1031 and the second region 1032 can both extend along the second direction Y, forming a relatively regular area for arranging the pole 101 and the heat exchange assembly 14. Because the heat exchange assembly 14 at least partially covers the second region 1032 of each battery cell 10, the heat exchange assembly 14 is in contact with each battery cell 10, allowing the heat exchange assembly 14 to exchange heat with each battery cell 10.

[0182] In some embodiments, as shown in Figures 15, 16, 18, 26 and 27, the heat exchange assembly 14 includes: a heat exchange plate 141; and an adhesive layer 142, including a first adhesive layer 1421 provided on the surface of the heat exchange plate 141 on the side close to the battery cell 10, and the heat exchange plate 141 is bonded to the battery cell 10 through the first adhesive layer 1421.

[0183] Heat exchange plate 141 contains a heat exchange medium, such as water. As shown in FIG17 , a flow channel 1411 may be provided inside heat exchange plate 141 , through which the heat exchange medium flows. Optionally, flow channel 1411 is arranged in a serpentine shape inside heat exchange plate 141 .

[0184] The heat exchange plate 141 can be bonded to the battery cell 10 or fixed to the container 11 by screws. A structure that can be mutually engaged can also be provided in the heat exchange plate 141 and the container 11. The present disclosure does not impose any special limitation on the fixing method of the heat exchange plate 141.

[0185] The heat exchange plate 141 can be secured by an adhesive layer 142. Adhesive layer 142 includes a first adhesive layer 1421. First adhesive layer 1421 is disposed on a surface of the heat exchange plate 141 that is closest to the battery cell 10. In other words, the heat exchange plate 141 is bonded to the first surface 103 of the battery cell 10 via first adhesive layer 1421. The projection of the heat exchange plate 141 onto the first surface 103 is located within the second region 1032.

[0186] Optionally, along the first direction X, the sum of the thickness of the first adhesive layer 1421 and the thickness of the heat exchange plate 141 is no greater than the distance between the first surface 103 and the inner wall of the container 11. A gap is provided between the heat exchange plate 141 and the inner wall of the container 11 to accommodate tolerances that may occur during production and installation.

[0187] Because the heat exchange plate 141 is bonded to the surface of the battery cell 10 via the first adhesive layer 1421, the heat exchange plate 141 and the battery cell 10 are in close contact, which helps to improve the heat exchange effect of the heat exchange plate 141 on the battery cell 10. In addition, because the heat exchange plate 141 and the battery cell 10 are bonded together to form an integral body, the structural strength of the battery cell 10 is improved.

[0188] In some embodiments, referring again to Figures 15, 16, 18, 26 and 27, the heat exchange assembly includes: a heat exchange plate 141; and an adhesive layer 142, the adhesive layer 142 includes a second adhesive layer 1422 provided on the surface of the heat exchange plate 141 facing away from the battery cell 10, and the heat exchange plate 141 is bonded to the containing box 11 through the second adhesive layer 1422.

[0189] The adhesive layer 142 also includes a second adhesive layer 1422. The second adhesive layer 1422 is disposed on the side of the heat exchange plate 141 facing away from the battery cells 10. It fills the gap between the heat exchange plate 141 and the inner wall of the container 11, bonding the heat exchange plate 141 to the inner wall of the container 11. The heat exchange plate 141 is secured within the container 11, and the battery cells 10 bonded to the heat exchange plate 141 are also secured.

[0190] In addition, the adhesive layer 142 may include only the second adhesive layer 1422 , that is, the heat exchange plate 141 is adhered to the housing box 11 via the second adhesive layer 1422 , and no adhesive layer is disposed between the heat exchange plate 141 and the battery cell 10 .

[0191] Because the heat exchange plate 141 is bonded to the inner wall of the storage box 11 via the second adhesive layer 1422, the heat exchange plate 141 is securely fixed within the storage cavity. This integral bonding of the heat exchange plate 141 and the storage box 11 helps enhance the structural strength of the storage box 11. With adhesive layers 142 applied to both sides of the heat exchange plate 141, the battery cells 10 are securely fixed within the storage cavity, as the two sides of the heat exchange plate 141 are bonded to the battery cells 10 and the storage box 11, respectively.

[0192] In some embodiments, as shown in Figures 1, 3, 11, 16 to 18, 22, 26 and 27, the heat exchange plate 141 is configured as a flat plate, or the heat exchange plate 141 is configured to have an undulating shape along the first direction X.

[0193] Optionally, the heat exchange plate 141 is in the shape of a flat plate. The surface of the heat exchange plate 141 is flat and can be closely attached to the surface of the battery cell 10.

[0194] Alternatively, the heat exchange plate 141 is configured to have an undulating shape along the first direction X. The maximum distance between the edges of the heat exchange plate 141 in the first direction X is smaller than the distance between the first surface 103 and the inner wall of the container 11 .

[0195] During actual manufacturing, the container 11 comprises a housing with an opening at one end and a lid that seals the opening. The battery cells 10 are placed in the housing, with the surface of the battery cells 10 closest to the opening serving as the first surface 103. The heat exchange plate 141 is placed on this first surface 103. Adhesive is applied to at least one surface of the heat exchange plate 141 in the first direction X. The lid is then pressed against the opening, simultaneously compressing the heat exchange plate 141. The heat exchange plate 141 deforms in the first direction X, and the adhesive moves from the area of ​​greatest pressure toward the periphery to accommodate the space between the heat exchange plate 141 and the inner wall of the container 11.

[0196] By configuring the heat exchange plate 141 as a flat plate, it can closely conform to the surface of the battery cell 10, improving heat exchange efficiency. The flat plate 141 has a simple structure and is easy to manufacture. By configuring the heat exchange plate 141 to have an undulating shape along the first direction X, the heat exchange plate 141 can be compressed by forces in the first direction X. When the distance between the surface of the battery cell 10 and the inner wall of the container 11 is small due to production tolerances, the undulating heat exchange plate 141 can deform to accommodate the smaller distance, reducing the impact of production tolerances.

[0197] In some embodiments, the heat exchange plate 141 is configured to be compressible along the first direction X.

[0198] Optionally, the heat exchange plate 141 is configured to have an undulating shape along the first direction X. This structure allows the heat exchange plate 141 to have a space capable of deformation.

[0199] Alternatively, at least a portion of the heat exchange plate 141 is made of elastic material, such as rubber. The entire outer wall of the heat exchange plate 141 can be made of elastic material, or both surfaces of the heat exchange plate 141 in the first direction X can be made of elastic material.

[0200] Therefore, the heat exchange plate 141 can be adapted to smaller gaps in the first direction X, so that the heat exchange plate 141 can not only continuously adhere to the battery cells 10 and maintain high heat exchange efficiency, but also reduce the impact of production tolerances.

[0201] In some embodiments, as shown in FIG. 6 , FIG. 15 , FIG. 21 and FIG. 25 , the heat exchange assembly 14 located in the second region 1032 contacts the first surface 103 of the battery and the inner wall surface of the containing box 11 , respectively.

[0202] Because the heat exchange assembly 14 contacts the first surface 103 and the inner wall of the container 11, respectively, it fully occupies the accommodating cavity space on the first surface 103, meeting the required installation space for the heat exchange assembly 14. The heat exchange assembly 14 is positioned between the first surface 103 and the inner wall of the container 11, and the heat exchange assembly 14 is in close contact with the first surface 103, thereby achieving high heat exchange efficiency between the heat exchange assembly 14 and the battery cells 10.

[0203] In some embodiments, as shown in Figures 7 and 8, in the accommodating cavity, the battery cell 10 is a long-blade battery cell, and multiple long-blade battery cells are arranged along the second direction Y to form a battery cell group. The second direction Y is consistent with the width direction of the first surface 103. In the battery cell group, the pole 101 is arranged along the second direction Y, and the heat exchange assembly 14 extends along the second direction Y.

[0204] The Changdao battery cell is produced using a stacking process, skipping the standardized module link and directly integrating a single battery cell into the battery pack, forming a slender arrangement structure similar to a honeycomb aluminum plate.

[0205] Optionally, the length dimension of the long blade battery cell in the third direction Z is in the range of 800 mm to 1200 mm. For example, the length dimension may be 800 mm, 850 mm, 900 mm, 1000 mm, 1100 mm, or 1200 mm.

[0206] Multiple long-blade battery cells are arranged along the second direction Y to form a battery cell group, and the poles 101 are arranged along the second direction Y. The surface of the battery cell group, the poles 101, and the inner wall of the container 11 form an "I" shape. A space capable of accommodating the heat exchange assembly 14 is provided on at least one side of the pole 101 in the third direction Z. The heat exchange assembly 14 is disposed in this space.

[0207] Optionally, the pole 101 is arranged in the middle of each first surface 103, so that all poles 101 of the battery cell group are located on the midline parallel to the second direction Y, so that both sides of the pole 101 in the third direction Z have sufficient space to accommodate the heat exchange component 14.

[0208] Also optionally, the two poles 101 are respectively arranged on both sides of the third direction Z of the first surface 103, and there is space sufficient to accommodate the heat exchange component 14 between all the poles 101 on one side of the third direction Z of the battery cell group and all the poles 101 on the other side of the third direction Z of the battery cell group, and the heat exchange component 14 is arranged in the space.

[0209] By arranging the long-blade battery cells along the second direction Y, the poles 101 are arranged in a straight line along the second direction Y. This creates a larger, more complete accommodating cavity on the side of the poles 101, satisfying the space requirements for installing the heat exchange assembly 14. By arranging the heat exchange assembly 14 within this space, the poles 101 and the heat exchange assembly 14 can fully utilize the accommodating cavity space on the first surface 103. Since the long-blade battery cells are arranged along the second direction Y and the heat exchange assembly 14 extends along the second direction Y, the heat exchange assembly 14 can cover multiple long-blade battery cells, thereby exchanging heat among the long-blade battery cells.

[0210] In some embodiments, as shown in Figures 9 and 10, in the accommodating cavity, the battery cell 10 is a short-knife battery cell, and multiple battery cell units are arranged along the second direction Y to form a battery cell group. The battery cell unit includes two or more short-knife battery cells arranged in parallel along the third direction Z. The second direction Y is consistent with the width direction of the first surface 103, and the third direction Z is consistent with the length direction of the first surface 103. Two adjacent short-knife battery cells along the third direction Z are arranged in parallel with the poles 101 close to each other or with the poles 101 far away from each other. In the battery cell group, the poles 101 are arranged along the second direction Y, and the heat exchange component 14 extends along the second direction Y.

[0211] The short-blade battery cell is produced using a stacking process, skipping the standardized module link, combining multiple battery cells into components, and integrating the components into the battery pack.

[0212] Optionally, the length dimension of the short-blade battery cell in the third direction Z is in the range of 350 mm to 700 mm. For example, the length dimension may be 350 mm, 400 mm, 450 mm, 500 mm, 550 mm, 600 mm, 650 mm, or 700 mm.

[0213] The battery cell unit includes at least two short-blade battery cells arranged in parallel along the third direction Z. The length of the battery cell unit in the second direction Y is the same as the length of the battery cell 10 in the second direction Y. The length of the battery cell unit in the third direction Z is the sum of the lengths of all the battery cells 10 included in the battery cell unit in the third direction Z. Multiple battery cell units are arranged along the first direction X to form a battery cell group, and the battery cells 10 in the battery cell group are arranged in a matrix.

[0214] The pole 101 is disposed on one side of the first surface 103 in the third direction Z. Optionally, two adjacent short-blade battery cells along the third direction Z are arranged side by side with the poles 101 close to each other. The pole 101 is located on the centerline of the battery cell group parallel to the second direction Y, and the heat exchange assembly 14 can be disposed on both sides of the centerline in the third direction Z.

[0215] Alternatively, two adjacent short-blade battery cells along the third direction Z are arranged side by side with their poles 101 spaced apart from each other. All poles 101 on one side of the battery cell group in the third direction Z are arranged along the second direction Y, and all poles 101 on the other side of the battery cell group in the third direction Z are arranged along the second direction Y. A heat exchange assembly 14 may be provided in the space between the poles 101 along the third direction Z.

[0216] Because the multiple battery cells are arranged along the second direction Y, and adjacent short-blade battery cells along the third direction Z are juxtaposed with their poles 101 close to or distant from each other, the accommodating cavity on the first surface 103 of the short-blade battery cell has a relatively large and complete space, which can meet the space requirements for installing the heat exchange assembly 14. Because the heat exchange assembly 14 extends along the second direction Y, the heat exchange assembly 14 can cover the multiple short-blade battery cells to exchange heat with the short-blade battery cells.

[0217] In some embodiments, as shown in FIG. 18 to FIG. 25 , the receiving box 11 forms a receiving portion on a side facing the battery cell 10 , and the electrode 101 is at least partially received in the receiving portion.

[0218] The accommodating portion is a space formed on the surface of the box wall of the accommodating box 11 facing the accommodating cavity, and at least one side facing the accommodating cavity is connected to the space of the accommodating cavity, so that at least part of the components protruding from the surface of the battery cell 10 can extend into the space of the accommodating portion through the open position of the accommodating portion.

[0219] The specific structural form of the receiving portion is not limited, for example, it can be a receiving groove. The components protruding from the surface of the battery cell 10 include the terminal post 101.

[0220] By providing a receiving portion on the receiving box 11, on the one hand, it is helpful to adapt the spatial shape of the receiving box 11 to the contour shape formed by the pole 101, which is helpful to reduce the requirements for the arrangement of the pole 101; on the other hand, it is helpful to reduce the overall size and volume of the receiving box 11, improve the space utilization rate in the receiving box 11, reduce the overall volume of the battery, and help to improve the energy density of the battery.

[0221] In some embodiments, as shown in FIG. 12 , FIG. 15 , FIG. 21 and FIG. 25 , a busbar 12 is provided in the first region 1031 . The busbar 12 is used to connect the poles 101 of adjacent battery cells 10 , and the busbar 12 is at least partially accommodated in the accommodation portion.

[0222] The busbar 12 is used to electrically connect the plurality of battery cells 10 so as to realize series or parallel connection between the battery cells 10 .

[0223] It should be noted that the specific structure of the busbar 12 and the manner of realizing series and parallel connection between the battery cells 10 have been applied in the relevant technology and will not be described in detail here.

[0224] The battery cells 10 are arranged along the second direction Y and / or the third direction Z, and the poles 101 on adjacent battery cells 10 are connected by a busbar 12. The busbar 12 spans across adjacent poles 101, and the projection of the busbar 12 onto the first surface 103 is located within the range of the first area 1031. The busbar 12 and at least a portion of the poles 101 are accommodated within the accommodating portion.

[0225] As a result, the spatial shape inside the storage box 11 is better adapted to the arrangement relationship between the manifold 12 and the battery cell 10, so that the shape of the storage cavity can adapt to the shape of the battery cell 10, which is conducive to reducing the gap between the inner wall of the storage box 11 and the battery cell 10 and improving the space utilization of the battery.

[0226] In some embodiments, as shown in Figures 18, 21, 22, and 25 to 27, the battery further includes: an electrical kit 13, the electrical kit 13 is at least partially disposed in the first area 1031, and the electrical kit 13 located in the first area 1031 is at least partially accommodated in the accommodating portion.

[0227] The electrical kit 13 is a variety of electrical components in the battery that are used to control the input or output of electrical energy into or out of the battery.

[0228] The battery further includes an electrical assembly 13. At least a portion of the electrical assembly 13 is disposed within the first region 1031. Along the first direction X, the projection of the accommodating portion onto the first surface 103 at least partially overlaps with the projection of the electrical assembly 13 disposed within the first region 1031 onto the first surface 103, allowing the portion of the electrical assembly 13 to be accommodated within the accommodating portion.

[0229] Thus, the first region 1031 integrates the terminal 101, the current collector 12, and at least a portion of the electrical assembly 13. A housing portion corresponding to the first region 1031 is provided on the housing box 11 to accommodate a larger number of components protruding from the surface of the battery cell 10, thereby maximizing the use of the space within the housing portion. This helps to reduce the gap between the inner wall of the housing cavity and the battery cell 10, thereby improving the space utilization of the battery.

[0230] In some embodiments, the electrical kit 13 includes at least one of a sampling structure, a battery management system, a relay, and a high voltage power distribution unit.

[0231] The battery management system is used to manage and control each electrical device in each battery, monitor the operating status of the battery, and adopt appropriate control strategies based on its operating status to prevent the battery from overcharging and over-discharging, thereby extending the battery life.

[0232] When the battery in the electrical device needs to be charged or discharged, the relay responds to the instructions of the power system to open or close the connection between the battery and other electrical components in the electrical device to achieve the transmission or interruption of electrical energy.

[0233] The high-voltage distribution unit is used to monitor the high-voltage connection status and insulation status of the battery in real time to manage the high-voltage power safety in the battery.

[0234] The sampling structure is used to obtain parameter information such as voltage and temperature of each component in the battery, such as the battery cell 10, and transmit the obtained parameter information to the battery management system (BMS) so that the battery management system can reasonably implement different control strategies to ensure safe and efficient charging and discharging of the battery.

[0235] It should be noted that the specific structures of the sampling structure, battery management system, relay, and high-voltage distribution unit, as well as the principles for achieving corresponding functions, have been applied in related technologies and will not be elaborated here.

[0236] As a result, at least one of the sampling structure, battery management system, relay, and high-voltage power distribution unit can be accommodated in the accommodating portion, reducing the space occupied by the accommodating cavity where it is originally located. This helps to reduce the gap between the inner wall of the accommodating cavity and the battery cell 10, thereby improving the space utilization of the battery.

[0237] In some embodiments, as shown in Figures 18 to 25 and 27, the receiving box 11 has a boss 111, and the boss 111 is formed by the receiving box 11 bulging along the first direction X toward the direction away from the battery cell 10. The boss 111 forms a receiving portion on the side facing the battery cell 10, and at least a portion of the pole 101 and the electrical kit 13 are located in the receiving portion and a gap is left between them and the inner wall at the boss 111.

[0238] Multiple bosses 111 may be provided. The receiving portion of the boss 111 is used to accommodate at least the pole 101. When the distance between the two poles 101 along the third direction Z is small, only one boss 111 is required on the receiving box 11 corresponding to the location of the pole 101. The projection of the boss 111 onto the first surface 103 along the first direction X is within the range of the pole 101, and at least a portion of the pole 101 is located within the receiving portion. When the distance between the two poles 101 along the third direction Z is large, two bosses 111 are provided, corresponding to the poles 101 on either side, to accommodate at least a portion of the pole 101.

[0239] The accommodating portion can also accommodate the electrical assembly 13. Optionally, at least a portion of the electrical assembly 13 is positioned between the terminal 101 and the boss 111, so that at least a portion of the electrical assembly 13 is housed within the accommodating portion. Alternatively, a portion of the electrical assembly 13 can be positioned on a surface of the battery cell 10 adjacent to or opposite the first surface 103, with the boss 111 configured on the accommodating box 11 to correspond to the placement of the electrical assembly 13.

[0240] Along the first direction X, the sum of the length of the pole 101 and the length of the electrical kit 13 is less than the distance between the inner wall surface of the boss 111 and the first surface 103, so that a gap is left between the pole 101 and the electrical kit 13 and the inner wall of the boss 111, thereby reducing the probability that the boss 111 is deformed by the pressure in the first direction X and damages the pole 101 and the electrical kit 13 in the accommodating portion.

[0241] Because the boss 111 is formed by the bulging of the receiving box 11 along the first direction X in a direction away from the battery cell 10, the side of the boss 111 facing the battery cell 10 forms a receiving portion. Therefore, the space of the receiving portion can be increased by increasing the height of the boss 111 within a certain range. The boss 111 can be arranged according to the size of the components to be accommodated, accommodating as many components as possible in the receiving portion, thereby reducing the space occupied by the components in the receiving cavity. This helps to reduce the gap between the inner wall of the receiving cavity and the battery cell 10, thereby improving the space utilization of the battery.

[0242] In some embodiments, the length direction of the boss 111 is consistent with the second direction Y, the length of the boss 111 along the second direction Y is greater than or equal to the length of the accommodating cavity along the second direction Y, and the second direction Y is consistent with the width direction of the first surface 103, or, the length direction of the boss 111 is consistent with the third direction Z, the length of the boss 111 along the third direction Z is greater than or equal to the length of the accommodating cavity along the third direction Z, and the third direction Z is consistent with the length direction of the first surface 103.

[0243] The length direction of the boss 111 refers to the direction of the longest side of the boss 111 .

[0244] Because the length of the boss 111 along the second direction Y is greater than or equal to the length of the accommodating cavity along the second direction Y, the projection of the boss 111 along the first direction X covers the range of all battery cells 10 along the second direction Y, allowing the terminals 101 of all battery cells 10 to be accommodated within the boss 111. Because the length of the boss 111 along the third direction Z is greater than or equal to the length of the accommodating cavity along the third direction Z, the boss 111 has a larger accommodating portion, capable of accommodating some terminals 101 and a larger number of electrical components 13. This helps reduce the space occupied by the electrical components 13 and other components in the accommodating cavity, thereby improving the battery's space utilization.

[0245] In some embodiments, the length of the boss 111 along the second direction Y or the third direction Z is no greater than 500 mm. For example, the length may be 50 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, 450 mm, or 500 mm.

[0246] Therefore, on the one hand, it is beneficial for the surface of the receiving box 11 to have a larger flat area so as to adapt to other components in the electrical device and reduce the adverse effects of the boss 111 on the arrangement of other components in the electrical device; on the other hand, it reduces the adverse effects of the boss 111 caused by its large size, thereby reducing the probability of damage to components in the receiving part due to deformation of the boss 111.

[0247] In some embodiments, the length of the boss 111 along the second direction Y or the third direction Z is in the range of 50 mm to 300 mm. For example, the length may be 50 mm, 80 mm, 100 mm, 150 mm, 160 mm, 200 mm, 220 mm, 250 mm, or 300 mm.

[0248] In this way, the space in the receiving portion can be sufficient to accommodate the protruding components on the battery cell 10, and the receiving box 11 can maintain sufficient structural strength.

[0249] In some embodiments, as shown in Figures 2, 6, 12, 15, 21 and 25, a protrusion 102 is provided in the first area 1031 of the battery cell 10, and the pole 101 is provided on the surface of the protrusion 102 on the side facing the first direction X, and at least a portion of the protrusion 102 is located in the accommodating portion.

[0250] A protrusion 102 protruding toward the box wall is constructed in the first area 1031 . The shape of the protrusion 102 can be cylindrical, cubic, etc. The present disclosure does not impose any special limitation on the specific shape of the protrusion 102 .

[0251] The terminal 101 is positioned on the side of the protrusion 102 facing away from the battery cell 10. The battery cells 10 are arranged at least along the second direction Y, with the first region 1031 and the protrusion 102 both extending along the second direction Y. A boss 111 is formed on the receiving box 11 corresponding to each protrusion 102 within the first region 1031, thereby receiving at least a portion of the terminal 101 within the receiving portion. In the first direction X, the length of the protrusion 102 can be greater than the distance between the inner wall of the receiving box 11 and the first surface 103, ensuring that all of the terminal 101 and a portion of the protrusion 102 are received within the receiving portion.

[0252] Furthermore, the busbar 12 connecting adjacent poles 101 is received in the receiving portion. A portion of the electrical assembly 13 may be disposed on a surface of the protrusion 102 away from the battery cell 10 so that the portion of the electrical assembly 13 is received in the receiving portion.

[0253] By arranging a protrusion 102 in the first area 1031 of the battery cell 10 and the pole 101 on the protrusion 102, the pole 101 is isolated from the second area 1032, and the heat exchange component 14 located in the second area 1032 does not interfere with the pole 101, thereby reducing the risk of electrical connection between the pole 101 and the heat exchange component 14; the height of the pole 101 in the first direction X can also be increased without reducing the strength of the pole, so as to facilitate providing a heat exchange component accommodating space of appropriate height as needed.

[0254] In some embodiments, as shown in Figures 2, 3, 5, 6, 14, 15, 20, 21, 24 and 25, the electrode 101 includes a positive electrode and a negative electrode, and the positive electrode and the negative electrode are spaced apart and arranged on the protrusion 102.

[0255] Each battery cell 10 is equipped with two posts 101: a positive post connected to the positive electrode of the battery cell 10, and a negative post connected to the negative electrode of the battery cell 10. The positive and negative posts are spaced apart and arranged on a protrusion 102. The protrusion 102 can be constructed on the surface of the battery cell 10, with the positive and negative posts arranged on the same protrusion 102; or relatively independent protrusions 102 can be constructed on the surface of the battery cell 10 for the positive and negative posts, respectively.

[0256] By arranging the positive electrode column and the negative electrode column at intervals on the protrusion 102 , the positive electrode column and the negative electrode column are relatively independent and do not interfere with each other, thereby reducing the risk of short circuit between the two.

[0257] In some embodiments, as shown in Figures 2, 3, 5, 6, 20 and 21, the number of protrusions 102 is one, the positive electrode column and the negative electrode column are spaced apart from each other on the protrusion 102, and the line connecting the positive electrode column and the negative electrode column is parallel to the length direction of the first surface 103, or the line connecting the positive electrode column and the negative electrode column is parallel to the width direction of the first surface 103.

[0258] Only one protrusion 102 is constructed on the surface of the battery cell 10, and the positive and negative electrode posts are arranged on the protrusion 102 at intervals. The positive and negative electrode posts can be arranged on diagonals of the protrusion 102, or they can be arranged on the protrusion 102 at intervals along the second direction Y, or they can be arranged on the protrusion 102 at intervals along the third direction Z.

[0259] In which, when the positive electrode column and the negative electrode column are arranged at intervals from each other along the second direction Y, the line connecting the positive electrode column and the negative electrode column is parallel to the width direction of the first surface 103; when the positive electrode column and the negative electrode column are arranged at intervals from each other along the third direction Z, the line connecting the positive electrode column and the negative electrode column is parallel to the length direction of the first surface 103.

[0260] The plurality of battery cells 10 are arranged at least along the second direction Y. The first region 1031 and the protrusion 102 both extend along the second direction Y. A heat exchange assembly 14 may be disposed in the second region 1032 on at least one side of the protrusion 102 in the third direction Z.

[0261] The protrusion 102 may be disposed in the middle or on one side of the first surface 103 . The present disclosure does not impose any particular limitation on the location of the protrusion 102 on the surface of the battery cell 10 .

[0262] Since the positive and negative poles are located on the same protrusion 102, only one protrusion 102 needs to be manufactured to provide a mounting position for the two poles 101, which helps to reduce the manufacturing steps of the first shell wall and reduce production costs. By arranging the positive and negative poles in a manner such that the line connecting the two poles is parallel to the length direction of the first surface 103, or arranging the positive and negative poles in a manner such that the line connecting the two poles is parallel to the width direction of the first surface 103, the arrangement is more regular and convenient for later maintenance. Moreover, since the area of ​​the protrusion 102 for setting two poles 101 can be designed to be larger than the area of ​​the protrusion for setting a single pole 101, it helps to improve the strength of the location where the pole 101 is set in the battery cell 10.

[0263] In some embodiments, as shown in FIG. 14 , FIG. 15 , FIG. 24 and FIG. 25 , at least two protrusions 102 are spaced apart from each other, the positive electrode column is provided on one protrusion 102 , and the negative electrode column is provided on the other protrusion 102 .

[0264] Two protrusions 102 are constructed within a first region 1031 of the first surface 103. The two protrusions 102 are spaced apart from each other in the first region 1031 and can be arranged along the second direction Y or the third direction Z. The positive electrode column is disposed on one protrusion 102, and the negative electrode column is disposed on the other protrusion 102. The two protrusions 102 can be spaced apart from each other and disposed on one side or the middle of the first surface 103, or on either side of the first surface 103. The present disclosure does not impose any particular restrictions on the location of the protrusions 102 on the surface of the battery cell 10.

[0265] Specifically, the first region 1031 may be located in the middle of the first surface 103. The plurality of battery cells 10 are arranged at least along the second direction Y. The first region 1031 and the protrusion 102 both extend along the second direction Y. The heat exchange assembly 14 may be disposed in the second regions 1032 on both sides of the first region 1031 in the third direction Z.

[0266] The first region 1031 may be located on one side of the first surface 103 in the third direction Z. The plurality of battery cells 10 are arranged at least along the second direction Y. The first region 1031 and the protrusion 102 both extend along the second direction Y. The heat exchange assembly 14 may be disposed in the second region 1032 located on the other side of the first surface 103 in the third direction Z.

[0267] The two first regions 1031 may be located on either side of the first surface 103 in the third direction Z. A protrusion 102 is disposed in each first region 1031. The battery cells 10 are arranged at least along the second direction Y. The first regions 1031 and the protrusions 102 extend along the second direction Y. The heat exchange assembly 14 may be disposed in the second region 1032 between the two first regions 1031.

[0268] Since at least two protrusions 102 are provided, and the positive electrode column and the negative electrode column are respectively provided on different protrusions 102, on the one hand, it is beneficial to reduce the volume of a single protrusion 102, making the structure more compact, which is beneficial to reducing the volume of the battery; on the other hand, there is a large distance between the positive electrode column and the negative electrode column, so that the two can be relatively independent and do not interfere with each other, reducing the risk of short circuit between the two.

[0269] In some embodiments, the length direction of the first surface 103 and the length direction of the protrusion 102 are consistent with the third direction Z. Along the third direction Z, the length of the protrusion 102 accounts for 10% to 30% of the length of the battery cell 10 .

[0270] Along the third direction Z, because the ratio of the length of the protrusion 102 to the length of the battery cell 10 is greater than or equal to 10%, the positive and negative electrode posts, when mounted on the same protrusion 102, maintain a sufficient safety distance between them, reducing the risk of short circuits. Along the third direction Z, because the ratio of the length of the protrusion 102 to the length of the battery cell 10 is less than or equal to 30%, at least 70% of the length of the battery cell 10 along the third direction Z is reserved for the heat exchange assembly 14, providing sufficient installation space for the heat exchange assembly 14.

[0271] Furthermore, if the pole 101 is disposed on the first surface 103 , the area of ​​the pole 101 occupies 10% to 30% of the area of ​​the first surface 103 ; if the pole 101 is disposed on the protrusion 102 , the area of ​​the protrusion 102 occupies 10% to 30% of the area of ​​the first surface 103 .

[0272] In some embodiments, as shown in Figures 2, 3, 5, 6, 14, 15, 20, 21, 24 and 25, along the third direction Z, the distance between the center point of the protrusion 102 and the center point of the first surface 103 is 0% of the length of the battery cell 10, or the distance between the center point of the protrusion 102 and the center point of the first surface 103 is in the range of 45% to 47.5% of the length of the battery cell 10.

[0273] Optionally, along the third direction Z, the distance between the center point of the protrusion 102 and the center point of the first surface 103 is 0% of the length of the battery cell 10. In other words, the protrusion 102 is disposed in the middle of the first surface 103. The multiple battery cells 10 are arranged at least along the second direction Y, and the protrusion 102 extends along the second direction Y. The protrusion 102 divides the accommodation cavity space on the first surface 103 into two spaces. The two spaces are of similar size and are sufficient to accommodate the heat exchange assembly 14.

[0274] Also optionally, along the third direction Z, the distance between the center point of the protrusion 102 and the center point of the first surface 103 is in the range of 45% to 47.5% of the length of the battery cell 10. In other words, one protrusion 102 is arranged on one side of the first surface 103 in the third direction Z, or two protrusions 102 are respectively arranged on both sides of the first surface 103 in the third direction Z. The plurality of battery cells 10 are arranged at least along the second direction Y, and the protrusions 102 extend along the second direction Y. If one protrusion 102 is arranged on one side of the first surface 103 in the third direction Z, the heat exchange component 14 can be set in the accommodating cavity space on the other side of the first surface 103 in the third direction Z; if two protrusions 102 are respectively arranged on both sides of the first surface 103 in the third direction Z, the heat exchange component 14 can be set in the accommodating cavity space between the two protrusions 102.

[0275] Along the third direction Z, because the distance between the center point of the protrusion 102 and the center point of the first surface 103 is 0% of the length of the battery cell 10, sufficient space is left on both sides of the protrusion 102 in the third direction Z to accommodate the heat exchange assembly 14. Along the third direction Z, because the distance between the center point of the protrusion 102 and the center point of the first surface 103 is in the range of 45% to 47.5% of the length of the battery cell 10, sufficient space is left on one side of the protrusion 102 to accommodate the heat exchange assembly 14.

[0276] In some embodiments, as shown in Figure 21, along the first direction X, the height of the pole 101 provided on the protrusion 102 from the first surface 103 of the battery is greater than or equal to the height of the heat exchange component 14, and a gap is left between the protrusion 102, the pole 101, the electrical kit 13 and the inner wall surface of the boss 111.

[0277] Optionally, along the first direction X, the height of the protrusion 102 from the first surface 103 of the battery can be greater than or equal to the height of the heat exchange component 14, and the pole 101 is arranged on the side surface of the protrusion 102 away from the battery cell 10, so that the pole 101 is spatially separated from the heat exchange component 14, reducing the risk of the pole 101 and the heat exchange component 14 being connected and conductive.

[0278] Also optionally, along the first direction X, the height of the protrusion 102 from the first surface 103 of the battery may not exceed the height of the heat exchange component 14, but the height of the pole 101 provided on the protrusion 102 from the first surface 103 of the battery exceeds the height of the heat exchange component 14.

[0279] Along the first direction X, the sum of the length of the protrusion 102, the length of the pole 101 and the length of the electrical kit 13 is less than the distance between the inner wall surface of the boss 111 and the first surface 103, so that a gap is left between the protrusion 102, the pole 101 and the electrical kit 13 and the inner wall of the boss 111, thereby reducing the probability of the boss 111 being deformed by the pressure in the first direction X and damaging the protrusion 102, the pole 101 and the electrical kit 13 in the accommodating portion.

[0280] As a result, the protrusion 102 , the pole 101 and the electrical assembly 13 are not squeezed by the inner wall surface of the boss 111 when they are placed in the receiving portion.

[0281] In some embodiments, as shown in Figures 26 to 28, the containing box 11 is provided with a through hole 113 that opens the first area 1031 to the outside, and a detachable closing cover 112 is provided at the through hole 113, and the projection of the through hole 113 along the first direction X has an overlapping portion with the projection of the first area 1031 along the first direction X.

[0282] A through hole 113 is provided through the wall of the storage box 11, connecting the storage chamber to the outside world. A removable cover 112 is provided over the through hole 113. The cover 112 is mounted on the storage box 11 and covers the through hole 113. The through hole 113 is positioned to correspond to at least a portion of the first area 1031, such that the projection of the through hole 113 along the first direction X overlaps with the projection of the first area 1031 along the first direction X, facilitating maintenance of at least a portion of the first area 1031 through the through hole 113.

[0283] Optionally, a through hole 113 is opened on the side wall of the boss 111 away from the battery cell 10, and the through hole 113 connects the accommodating portion with the outside, exposing the components such as the pole 101 and the busbar 12 accommodated in the boss 111 to the outside for easy maintenance.

[0284] Because the storage box 11 is provided with a through hole 113, the interior of the battery is connected to the outside world. Therefore, maintenance personnel can perform internal battery inspection through the through hole 113. By removably installing the closure cover 112 at the through hole 113, the closure cover 112 can seal the through hole 113 when installed, isolating the storage chamber from the outside world, thereby allowing the battery cell 10 to operate in a stable environment. When the closure cover 112 is removed from the through hole 113, the interior of the battery is connected to the outside world through the through hole 113, allowing for internal battery inspection. Because the projection of the through hole 113 along the first direction X overlaps with the projection of the first region 1031 along the first direction X, maintenance personnel can directly access at least a portion of the terminal 101 through the through hole 113.

[0285] In some embodiments, as shown in FIG. 27 and FIG. 28 , a sealing member 114 is provided around the through hole 113 , and the sealing member 114 is used to seal between the through hole 113 and the closing cover 112 .

[0286] Seal 114 is made of an elastic material, such as rubber, which is not specifically limited in this disclosure. Seal 114 is disposed between cover 112 and through-hole 113, surrounding the edge of through-hole 113. When cover 112 seals through-hole 113, it compresses seal 114, reducing the gap between cover 112 and through-hole 113.

[0287] Thus, the closing cover 112 and the through hole 113 can maintain a relatively tight sealing effect, preventing external dust and liquid from entering the accommodating cavity and damaging the battery cell 10 .

[0288] In some embodiments, as shown in Figures 26 to 28, the closing cover 112 is configured to be flat, or the closing cover 112 is configured to be convex relative to the surface of the accommodating box 11, and the closing cover 112 forms a accommodating portion on the side facing the battery cell 10, and at least a portion of the pole 101 is located in the accommodating portion via the through hole 113.

[0289] Optionally, the closure cover 112 is flat. It fits snugly against the surface of the container wall 11, completely covering the through-hole 113 and sealing it. After the closure cover 112 seals the through-hole 113, a gap exists between the pole 101 and the closure cover 112. That is, the length of the pole 101 in the first direction X is less than the distance between the first surface 103 and the closure cover 112, allowing the pole 101 to be accommodated within the accommodating cavity.

[0290] Alternatively, the closure cover 112 is configured to be raised relative to the surface of the storage box 11. The closure cover 112 protrudes 102 away from the battery cell 10, forming a receiving portion on the side of the closure cover 112 facing the battery cell 10. The receiving cavity can be connected to the receiving portion via a through hole 113, and at least a portion of at least one of the terminal 101, the busbar 12, and the electrical assembly 13 can be accommodated in the receiving portion.

[0291] By configuring the closing cover 112 as a flat plate, the structure is simplified and the processing of the closing cover 112 is facilitated. Since the closing cover 112 is configured as a protrusion relative to the surface of the storage box 11 and the side of the closing cover 112 facing the battery cell 10 forms a receiving portion, at least a portion of the terminal 101 is positioned within the receiving portion of the closing cover 112. This reduces the space occupied by the terminal 101 within the receiving cavity, thereby helping to reduce the volume of the storage box 11.

[0292] In some embodiments, as shown in FIG. 27 and FIG. 28 , the through hole 113 is opened on the wall surface of the boss 111 facing the battery cell 10 .

[0293] A through hole 113 is formed on the side wall of the boss 111 away from the battery cell 10, and a raised closing cover 112 can be installed at the through hole 113. The receiving portion of the boss 111 and the receiving portion of the closing cover 112 form a large receiving space in the first direction X to accommodate more components such as the terminal 101.

[0294] Optionally, the inner wall of the closure cover 112 surrounds and closely contacts the outer surface of the boss 111. A seal 114 may be provided between the inner wall of the closure cover 112 and the outer surface of the boss 111 to accommodate at least a portion of the boss 111 within the accommodating portion of the closure cover 112. In the first direction X, the distance between the inner wall of the closure cover 112 and the first surface 103 is greater than the distance between the surface of the boss 111 facing away from the battery cell 10 and the first surface 103, allowing components housed within the boss 111 to be received within the closure cover 112 through the through hole 113.

[0295] Alternatively, the closing cover 112 is provided on the surface of the boss 111 away from the battery cell 10. In the first direction X, the receiving portion of the boss 111 and the receiving portion of the closing cover 112 overlap to form a larger receiving space in the first direction X to accommodate more components such as the terminal post 101.

[0296] As a result, the accommodating portion of the closure cover 112 and the accommodating portion of the boss 111 overlap to form a larger space, which can accommodate more terminals 101 and even the electrical assembly 13, further reducing the space occupied by the protruding portion of the battery cell 10. The through hole 113 connects the accommodating portion of the boss 111 to the outside world, allowing maintenance personnel to inspect components such as the terminal 101 within the accommodating portion.

[0297] In a second aspect, the present disclosure further provides an electrical device, comprising a battery, wherein the battery serves as a power source for the electrical device.

[0298] Since the electrical device includes a battery that fully utilizes the internal space of the storage box 11, the space reserved for the battery in the electrical device can be reduced, or the overall energy of the battery can be increased while maintaining the volume, thereby helping to increase the layout freedom of the battery and its surrounding structures in the electrical device, and helping to improve the battery life / standby capability of the electrical device.

[0299] In some embodiments, as shown in Figures 29 to 32, multiple battery cells 10 are arranged along the second direction Y to form a battery cell queue, the second direction Y is consistent with the width direction of the first surface 103, the surface of the storage box 11 is configured to have a boss 111 extending along the second direction Y, the boss 111 is formed by the surface of the storage box 11 bulging along the first direction X toward the direction away from the battery cell 10, the electrical device is a vehicle, the vehicle also includes at least one seat 15, the battery is located on one side of the seat 15 along the vehicle up-down direction X and the through hole 113 of the battery faces the other side of the vehicle up-down direction X, the vehicle up-down direction X is consistent with the first direction X, the first direction X is perpendicular to the second direction Y, and the projection of the seat 15 on the battery along the vehicle up-down direction X is outside the range of the boss 111.

[0300] The vehicle up-down direction X refers to the direction perpendicular to the plane on which the vehicle is traveling.

[0301] The first direction X refers to a direction perpendicular to any surface of the battery cell 10. In this embodiment, the first direction X is consistent with the up-down direction X of the vehicle.

[0302] The second direction Y is a direction consistent with the width direction of the first surface 103 and is perpendicular to the first direction X.

[0303] Along the vehicle vertical direction X, the battery is mounted on the underside of the seat 15. A boss 111 is constructed on the surface of the storage box 11 near the seat 15. That is, the boss 111 is constructed on the upper surface of the storage box 11, and the boss 111 is formed to bulge in a direction away from the battery cell 10. The boss 111 has a receiving portion to accommodate components protruding from the surface of the battery cell 10. The battery cells 10 in the receiving cavity are arranged along the second direction Y to form a battery cell array. The boss 111 extends along the second direction Y, and the receiving portion of the boss 111 is capable of accommodating at least the terminal 101. To avoid mutual obstruction between the boss 111 and the seat 15, the projection of the seat 15 on the battery along the vehicle vertical direction X is arranged outside the range of the boss 111.

[0304] Optionally, along the vehicle vertical direction X, the upper side wall of the storage box 11 constitutes the vehicle's floor, with the seat 15 positioned on the upper side of the floor and the storage cavity located on the lower side. Alternatively, the vehicle further comprises a floor. Along the vehicle vertical direction X, the seat 15 is positioned on the upper side of the floor, and the storage box 11 is positioned on the lower side of the floor. An upward protrusion corresponding to the boss 111 is configured on the floor to accommodate the boss 111.

[0305] Because the surface of the storage box 11 is provided with a boss 111, the boss 111 can provide additional space to accommodate the components within the battery, which can help reduce the space required for the battery, or increase the overall energy of the battery while maintaining its volume, thereby helping to improve the vehicle's range. Because the projection of the seat 15 on the battery along the vehicle's vertical direction X is located outside the range of the boss 111, the seat 15 and the boss 111 fully utilize the same horizontal space, improving space utilization within the vehicle and having little impact on each other. Because the battery is located on one side of the seat 15 along the vehicle's vertical direction X, and the battery's through hole 113 faces the other side of the vehicle's vertical direction X, battery maintenance can be performed inside the vehicle without removing the battery, saving time and effort.

[0306] In some embodiments, referring to Figures 29 to 32, the vehicle includes at least one seat row, and the seat row includes at least two seats 15 arranged along the left-right direction Z of the vehicle. The left-right direction Z of the vehicle is a third direction Z, and the third direction Z is perpendicular to both the first direction X and the second direction Y. Along the left-right direction Z of the vehicle, the boss 111 is located between adjacent seats 15 in the same seat row, and / or the boss 111 is located on both sides of the left-right direction Z of the vehicle in the same seat row.

[0307] The third direction Z refers to a direction consistent with the length direction of the first surface 103 .

[0308] The left-right direction Z of the vehicle refers to the direction parallel to the plane on which the vehicle is traveling and is consistent with the third direction Z.

[0309] A plurality of seats 15 are provided, with at least two seats 15 spaced apart along the vehicle's left-right direction Z. The seats 15 spaced apart along the vehicle's left-right direction Z are considered a seat row, and at least one seat row spaced apart along the second direction Y. Along the vehicle's left-right direction Z, the bosses 111 are located between adjacent seats 15 in the same seat row, and / or the bosses 111 are located on both sides of the same seat row in the vehicle's left-right direction Z.

[0310] Thus, the seat 15 is not affected by the protrusion 102 when adjusting forward and backward. In addition, the setting position of the boss 111 is staggered with the user's use position, which reduces the interference of the boss 111 on the user's normal activities in the car, improves the user experience, and improves the space utilization rate in the vehicle.

[0311] In some embodiments, the battery cells 10 are arranged in a battery cell array along the second direction Y and the third direction Z. When the number of battery cells 10 arranged along the third direction Z is greater than the number of battery cells 10 arranged along the second direction Y, the number of battery cells 10 arranged along the second direction Y does not exceed 2; when the number of battery cells 10 arranged along the third direction Z is less than the number of battery cells 10 arranged along the second direction Y, the number of battery cells 10 arranged along the third direction Z does not exceed 4.

[0312] As a result, the size of the battery does not exceed the size of a conventional vehicle chassis, allowing the battery to be adapted to most vehicles.

[0313] In a third aspect, the present disclosure further provides an energy storage device, comprising the battery as described above, wherein the battery is configured to store and provide electrical energy.

[0314] Since the energy storage device includes a battery that fully utilizes the internal space of the storage box 11, the space reserved for the battery by the energy storage device can be reduced, or the overall energy of the battery can be increased while maintaining the volume, thereby helping to reduce the space required for the energy storage device or increase the energy storage capacity.

[0315] The various embodiments / implementations provided in the present disclosure can be combined with each other without causing any contradiction.

[0316] 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

[0317] The batteries, electrical devices, and energy storage devices provided by the present disclosure are beneficial to improving the space utilization and energy density of the batteries, thereby saving the configuration space of the batteries in the electrical devices and energy storage devices or increasing the energy of the batteries in the electrical devices and energy storage devices, thereby reducing battery maintenance costs.

Claims

1. A battery, wherein: include: At least one battery cell, each of the battery cells having a pole on a first surface of one side in a first direction; A storage box, wherein a storage cavity is provided in the storage box, and each battery cell is stored in the storage cavity; A heat exchange component is provided on the first surface of the battery cell and is used to exchange heat with each of the battery cells. A projection of the pole along the first direction on the first surface and a projection of the heat exchange component along the first direction on the first surface do not overlap with each other.

2. The battery according to claim 1, wherein The first surface has a first area and a second area. The pole is arranged in the first area, and the heat exchange component is arranged in the second area.

3. The battery according to claim 2, wherein There are two second areas, and the two second areas are located on both sides of the first area respectively.

4. The battery according to claim 2, wherein The number of the first regions is two, and the second region is located between the two first regions.

5. The battery according to any one of claims 2 to 4, wherein The area of ​​the second region is larger than that of the first region.

6. The battery according to any one of claims 2 to 5, wherein The plurality of battery cells are arranged at least along a second direction, and the second direction is consistent with the width direction of the first surface. The heat exchange assembly at least partially covers the second region of each of the battery cells.

7. The battery according to any one of claims 1 to 6, wherein The heat exchange component comprises: heat exchange plates; and The adhesive layer includes a first adhesive layer provided on a surface of the heat exchange plate on a side close to the battery cell. The heat exchange plate is bonded to the battery cell through the first adhesive layer.

8. The battery according to any one of claims 1 to 7, wherein The heat exchange component comprises: heat exchange plates; and The adhesive layer includes a second adhesive layer provided on a surface of a layer of the heat exchange plate facing away from the battery cell, and the heat exchange plate is adhered to the housing box via the second adhesive layer.

9. The battery according to claim 7 or 8, wherein The heat exchange plate is configured in a flat plate shape, or the heat exchange plate is configured in a shape that undulates along the first direction.

10. The battery according to any one of claims 7 to 9, wherein The heat exchange plate is configured to be compressible along the first direction.

11. The battery according to any one of claims 2 to 6, wherein The heat exchange assembly located in the second area is in contact with the first surface of the battery and the inner wall surface of the containing box respectively.

12. The battery according to any one of claims 1 to 11, wherein In the accommodating cavity, the battery cell is a long-blade battery cell, and a plurality of the long-blade battery cells are arranged along a second direction to form a battery cell group, and the second direction is consistent with the width direction of the first surface. In the battery cell group, the poles are arranged along the second direction, and the heat exchange assembly extends along the second direction.

13. The battery according to any one of claims 1 to 11, wherein In the accommodating cavity, the battery cell is a short-knife battery cell, and a plurality of battery cell units are arranged along the second direction to form a battery cell group. The battery cell unit includes two or more short-knife battery cells arranged in parallel along a third direction. The second direction is consistent with the width direction of the first surface, and the third direction is consistent with the length direction of the first surface. Two adjacent short-blade battery cells along the third direction are arranged in parallel with their poles close to each other or in parallel with their poles far away from each other. In the battery cell group, the poles are arranged along the second direction, and the heat exchange assembly extends along the second direction.

14. The battery according to any one of claims 2 to 6, wherein The receiving box forms a receiving portion on a side facing the battery cell, and the electrode is at least partially received in the receiving portion.

15. The battery according to claim 14, wherein A busbar is provided in the first region, and the busbar is used to connect the poles of the adjacent battery cells. The busbar is at least partially accommodated in the accommodation portion.

16. The battery according to claim 14 or 15, wherein The battery further includes an electrical assembly, wherein the electrical assembly is at least partially disposed in the first area, and the electrical assembly in the first area is at least partially accommodated in the accommodation portion.

17. The battery according to claim 16, wherein The electrical kit includes at least one of a sampling structure, a battery management system, a relay, and a high-voltage power distribution unit.

18. The battery according to claim 16 or 17, wherein The receiving box has a boss, which is formed by the receiving box bulging along the first direction toward the direction away from the battery cell. The boss forms the receiving portion on the side facing the battery cell, and the pole and at least a portion of the electrical kit are located in the receiving portion and a gap is left between them and the inner wall of the boss.

19. The battery according to claim 18, wherein The length direction of the boss is consistent with the second direction, the length of the boss along the second direction is greater than or equal to the length of the accommodating cavity along the second direction, and the second direction is consistent with the width direction of the first surface, or, The length direction of the boss is consistent with the third direction, the length of the boss along the third direction is greater than or equal to the length of the accommodating cavity along the third direction, and the third direction is consistent with the length direction of the first surface.

20. The battery according to claim 19, wherein The length of the boss along the second direction or the third direction is no more than 500 mm.

21. The battery according to claim 20, wherein A length of the boss along the second direction or the third direction is in a range of 50 mm to 300 mm.

22. The battery according to any one of claims 14 to 21, wherein A protrusion is provided in the first region of the battery cell, the pole is provided on a surface of the protrusion facing the first direction, and at least a portion of the protrusion is located in the accommodating portion.

23. The battery according to claim 22, wherein The poles include a positive pole and a negative pole, and the positive pole and the negative pole are spaced apart from each other and arranged on the protrusion.

24. The battery according to claim 23, wherein The number of the protrusion is one, the positive electrode column and the negative electrode column are spaced apart from each other on the protrusion, and the line connecting the positive electrode column and the negative electrode column is parallel to the length direction of the first surface, or the line connecting the positive electrode column and the negative electrode column is parallel to the width direction of the first surface.

25. The battery according to claim 23, wherein At least two of the protrusions are spaced apart from each other, the positive electrode column is arranged on one of the protrusions, and the negative electrode column is arranged on the other of the protrusions.

26. The battery according to any one of claims 21 to 24, wherein The length direction of the first surface and the length direction of the protrusion are consistent with the third direction, Along the third direction, the length of the protrusion accounts for 10% to 30% of the length of the battery cell.

27. The battery according to claim 26, wherein Along the third direction, the distance between the center point of the protrusion and the center point of the first surface is 0% of the length of the battery cell, or the distance between the center point of the protrusion and the center point of the first surface is in the range of 45% to 47.5% of the length of the battery cell.

28. The battery according to any one of claims 22 to 27, wherein Along the first direction, the height of the pole provided on the protrusion from the first surface of the battery is greater than or equal to the height of the heat exchange component, and a gap is left between the protrusion, the pole, the electrical kit and the inner wall surface of the boss.

29. The battery according to any one of claims 14 to 17, wherein The storage box is provided with a through hole for opening the first area to the outside, and a detachable closing cover is provided at the through hole. A projection of the through hole along the first direction and a projection of the first region along the first direction have an overlapping portion.

30. The battery according to claim 29, wherein A sealing member is provided around the through hole, and is used for sealing between the through hole and the closing cover.

31. The battery according to claim 29 or 30, wherein The closing cover is formed into a flat plate, or The closing cover is configured to be convex relative to the surface of the storage box. The closing cover forms the storage portion on a side facing the battery cell. At least a portion of the terminal is located in the storage portion via the through hole.

32. The battery according to any one of claims 29 to 31, wherein The through hole is formed on a wall surface of the boss facing the battery cell.

33. An electrical device, wherein: The battery according to any one of claims 1 to 32 is used as a power source for the electrical device.

34. The electrical device according to claim 33, wherein: The plurality of battery cells are arranged along a second direction to form a battery cell queue, wherein the second direction is consistent with the width direction of the first surface. The surface of the storage box is configured to have a boss extending along the second direction, wherein the boss is formed by the surface of the storage box bulging along the first direction away from the battery cell. The electrical device is a vehicle, and the vehicle further includes at least one seat, the battery is located on one side of the seat along the up-down direction of the vehicle, and the through hole of the battery faces the other side of the up-down direction of the vehicle, the up-down direction of the vehicle is consistent with the first direction, and the first direction is perpendicular to the second direction. A projection of the seat onto the battery in the vertical direction of the vehicle is located outside the range of the boss.

35. The electrical device according to claim 34, wherein: The vehicle includes at least one seat row, the seat row includes at least two seats arranged along the left-right direction of the vehicle, the left-right direction of the vehicle is the third direction, and the third direction is perpendicular to both the first direction and the second direction. Along the left-right direction of the vehicle, the boss is located between adjacent seats in the same seat row, and / or the boss is located on both sides of the same seat row in the left-right direction of the vehicle.

36. The electrical device according to claim 35, wherein: The battery cells are arranged along the second direction and the third direction to form a battery cell array. When the number of the battery cells arranged along the third direction is greater than the number of the battery cells arranged along the second direction, the number of the battery cells arranged along the second direction does not exceed 2; In a case where the number of the battery cells arranged along the third direction is less than the number of the battery cells arranged along the second direction, the number of the battery cells arranged along the third direction does not exceed four.

37. An energy storage device, wherein: The battery according to any one of claims 1 to 32 is configured to store and provide electrical energy.

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