Battery system and vehicle with same

Abstract

The utility model discloses a battery system and a vehicle with the battery system, the battery system comprises a chassis and a plurality of battery cell components, each battery cell component comprises a plurality of battery cell monomers and a side plate, the plurality of battery cell monomers in each battery cell component are arranged along a first direction and are arranged above the chassis, and the side plate is arranged above the chassis. A side plate is arranged on at least one side of the battery cell assembly along the second direction, is connected with the battery cell monomers through structural adhesive, and is connected with the chassis. According to the battery system disclosed by the utility model, the battery system can realize the detachability between the battery cell monomers and the chassis, so that the later maintainability and the reusability of the battery cell assembly can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially a kind of battery system and vehicle with it. BACKGROUND

[0002] In related art, to improve the space utilization of battery in vehicle, battery module is gradually cancelled, and battery cell is directly loaded into the frame of battery pack to form CTP (Cell to Pack) structure, or the frame of battery pack is integrated with vehicle chassis, and battery cell is directly fixed on vehicle chassis to form CTC (Cell to Chassis) structure, and the existing CTP structure or CTC structure is all fixed and bonded with battery cell by a large amount of structural adhesive, so that the space utilization can be effectively improved and the grouping efficiency can be improved, but battery cell cannot be individually disassembled, and violent disassembly will only cause battery cell damage, so that the difficulty of later maintenance or replacement of battery cell is extremely great, and the reuse of battery cell cannot be realized. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art is solved. To this end, the utility model provides a battery system, which can realize the detachability between battery cell monomer and chassis, so as to guarantee the later maintainability and reusability of battery cell assembly.

[0004] The utility model further provides a vehicle, which comprises the above battery system.

[0005] The battery system according to the utility model embodiment comprises a chassis and a battery cell assembly, the battery cell assembly is multiple, each battery cell assembly comprises a plurality of battery cell monomers and a side plate, the plurality of battery cell monomers in each battery cell assembly are arranged along a first direction and arranged above the chassis, the side plate is arranged on at least one side of the battery cell assembly along a second direction, the side plate is connected with the battery cell monomer through structural adhesive, and the side plate is connected with the chassis.

[0006] According to the battery system of the utility model embodiment, a plurality of battery cell assemblies are arranged above the chassis, a plurality of battery cell monomers arranged along a first direction are arranged in each battery cell assembly, a side plate connected with the chassis is arranged on at least one side of the battery cell assembly along a second direction, and the side plate is connected with the battery cell monomer through structural adhesive, so that the connection strength between the battery cell monomer and the side plate can be strengthened, the plurality of battery cell monomers in each battery cell assembly are formed as a whole, so that the installation and later disassembly and maintenance are facilitated. Moreover, the plurality of battery cell monomers are connected with the chassis through the side plate, the connection stability between the battery cell monomer and the chassis is ensured, the detachability between the battery cell monomer and the chassis can be realized, and the later inspection, maintenance and reuse of the battery cell monomer are facilitated.

[0007] According to some embodiments of the present invention, the bottom of the battery cell is bonded to the chassis by thermally conductive adhesive. The battery cell includes a battery cell body and a blue film covering the battery cell body. A window is provided on the area of ​​the blue film opposite to the side plate. At least a portion of the structural adhesive is located at the window.

[0008] In some embodiments of this utility model, the lower end of the side plate is provided with a first fixing part, which extends along the first direction and is connected to the chassis.

[0009] In some embodiments of this utility model, the first fixing part and the side plate are an integral part; or the first fixing part and the side plate are separate processed parts; and / or, the first fixing part is screwed or riveted to the chassis.

[0010] In some embodiments of this utility model, a plurality of the battery cell assemblies are arranged in a single column or in multiple columns spaced apart along the second direction.

[0011] In some embodiments of this invention, each column includes at least two of the cell assemblies, and along the first direction, the side plates of two adjacent cell assemblies in each column are connected at their closest ends to each other.

[0012] In some embodiments of this utility model, along the first direction, the side plates of two adjacent battery cell assemblies are provided with a second fixing part at the end closest to each other and are connected to each other. The second fixing part extends in the vertical direction, wherein the first direction, the second direction and the vertical direction are perpendicular to each other.

[0013] In some embodiments of this utility model, the second fixing part and the side plate are integral parts; or the second fixing part and the side plate are separate processed parts; and / or, along the first direction, the second fixing parts of two adjacent battery cell assemblies are screwed or riveted together.

[0014] In some embodiments of this utility model, foam is provided between two adjacent battery cells along the first direction.

[0015] A vehicle according to an embodiment of the present invention includes: the battery system described above, wherein the chassis is a beam of the vehicle or the chassis is connected to the beam of the vehicle.

[0016] According to the vehicle embodiment of this utility model, by setting multiple battery cell assemblies above the chassis, with multiple battery cell units arranged along a first direction in each battery cell assembly, and a side plate connected to the chassis on at least one side of the battery cell assembly along a second direction, and by connecting the side plate to the battery cell units with structural adhesive, the connection strength between the battery cell units and the side plate can be strengthened, making the multiple battery cell units in each battery cell assembly form a whole, thereby facilitating installation and subsequent disassembly and maintenance. Furthermore, the connection between the multiple battery cell units and the chassis via the side plate ensures the stability of the connection between the battery cell units and the chassis while enabling the disassembly of the battery cell units to the chassis, facilitating subsequent inspection, maintenance, and reuse of the battery cell units.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a perspective view of a battery system according to an embodiment of the present utility model;

[0020] Figure 2 This is a perspective view of a single cell of a battery system according to an embodiment of the present invention.

[0021] Figure 3 This is a perspective view of a single cell in the battery cell assembly of the battery system according to an embodiment of the present utility model.

[0022] Figure 4 This is a perspective view of one column of battery cell components in a battery system according to an embodiment of the present invention.

[0023] Figure label:

[0024] 100. Battery system;

[0025] 1. Chassis;

[0026] 2. Battery cell assembly; 21. Battery cell; 211. Battery cell body; 212. Blue film; 213. Window;

[0027] 3. Side panel; 31. First fixing part; 32. Second fixing part;

[0028] 4. Foam. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is for reference. Figures 1-4 A battery system 100 according to an embodiment of the present invention is described.

[0033] like Figure 1 As shown, the battery system 100 according to an embodiment of the present invention includes a chassis 1 and a cell assembly 2.

[0034] Specifically, such as Figure 1 and Figure 4 As shown, there are multiple battery cell assemblies 2. Each battery cell assembly 2 includes multiple battery cell units 21 and a side plate 3. The multiple battery cell units 21 in each battery cell assembly 2 are arranged along a first direction and the battery cell units 21 are located above the chassis 1. The battery cell assembly 2 has a side plate 3 on at least one side along a second direction. The side plate 3 is connected to the battery cell unit 21 by structural adhesive and is connected to the chassis 1.

[0035] Multiple individual battery cells 21 are neatly arranged along a first direction, facilitating the placement of the side plate 3 on at least one side of the multiple individual battery cells 21 along a second direction, effectively improving the space utilization of the individual battery cells 21 and the battery cell assembly 2. In each battery cell assembly 2, the side plate 3 is connected to the individual battery cells 21 via structural adhesive. Preferably, the side plate 3 is connected to each individual battery cell 21, ensuring a firm bond between the multiple individual battery cells 21 and the side plate 3. This strengthens the connection between the individual battery cells 21 and the side plate 3, allowing the multiple individual battery cells 21 to form a unified whole, facilitating installation and subsequent disassembly and maintenance.

[0036] Furthermore, the side plate 3 is connected to the chassis 1, thus fixing multiple battery cells 21 onto the chassis 1. For example, the side plate 3 and the chassis 1 can be screwed or riveted together. While ensuring the connection stability between the battery cell 21 and the chassis 1, this allows for the disassembly of the battery cell 21 and the chassis 1, and avoids damage to the battery cell 21 caused by secondary disassembly. This facilitates the later inspection, maintenance, and reuse of the battery cell 21.

[0037] According to the battery system 100 of this utility model embodiment, by arranging multiple cell assemblies 2 above a chassis 1, and arranging multiple individual cell units 21 along a first direction in each cell assembly 2, and providing a side plate 3 connected to the chassis 1 on at least one side of the cell assembly 2 along a second direction, and by connecting the side plate 3 to the individual cell units 21 with structural adhesive, the connection strength between the individual cell units 21 and the side plate 3 can be strengthened, so that the multiple individual cell units 21 in each cell assembly 2 form a whole, thereby facilitating installation and subsequent disassembly and maintenance. Furthermore, the connection between the multiple individual cell units 21 and the chassis 1 via the side plate 3 ensures the stability of the connection between the individual cell units 21 and the chassis 1, while also enabling the disassembly of the individual cell units 21 and the chassis 1, facilitating subsequent inspection, maintenance, and reuse of the individual cell units 21.

[0038] In some embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the battery cell assembly 2 includes multiple battery cell units 21. The battery cell units 21 are located above the chassis 1 and are bonded to the chassis 1 at the bottom by thermally conductive adhesive. Each battery cell unit 21 includes a battery cell body 211 and a blue film 212 covering the battery cell body 211. The area of ​​the blue film 212 located below the battery cell body 211 is a complete, non-porous area.

[0039] In the existing technology, the bottom of the battery cell is bonded to the chassis with structural adhesive. At the same time, a window is opened in the area where the blue film is located below the battery cell body, and at least part of the structural adhesive is located at the window. This allows the battery cell to be firmly bonded to the chassis. Although this can strengthen the connection between the battery cell and the chassis, it also makes it impossible to remove the battery cell from the chassis. If it is forcibly removed, it will cause damage or scrapping of the battery cell, thus affecting the later inspection, maintenance and reuse.

[0040] In this application, the bottom of the battery cell 21 is bonded to the chassis 1 with thermally conductive adhesive. The adhesive strength of the thermally conductive adhesive is lower than that of the structural adhesive. While ensuring the connection stability between the battery cell 21 and the chassis 1, the adhesive force between the chassis 1 can be reduced. This allows for the disassembly of the battery cell 21 and the chassis 1, and avoids damage to the battery cell 21 caused by secondary disassembly force. This facilitates the later inspection, maintenance and reuse of the battery cell 21.

[0041] Furthermore, the cell body 211 is covered with a blue film 212, which serves to provide insulation, waterproofing, and dustproofing, thereby improving the safety and reliability of the individual cell 21. The area of ​​the blue film 212 below the cell body 211 is a complete, non-porous area, separating the thermally conductive adhesive from the cell body 211. When it is necessary to remove the individual cell 21 from the chassis 1, the blue film 212 adheres to the thermally conductive adhesive, and the cell body 211 and the blue film 212 can be separated from each other, thus enabling the cell body 211 to detach from the chassis 1. This reduces the difficulty of removing the cell assembly 2 from the chassis 1 and prevents damage to the cell body 211, thereby ensuring the maintainability and reusability of the cell assembly 2.

[0042] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, a window 213 is provided on the area of ​​the blue film 212 opposite to the side plate 3, and at least a portion of the structural adhesive is located at the window 213. That is, at the location where the blue film 212 has the window 213, the cell body 211 and the side plate 3 are directly bonded together by structural adhesive. This can further enhance the connection strength between the cell body 211 and the side plate 3, thereby improving the connection stability between multiple individual cell units 21, and thus improving the structural stability and reliability of the cell assembly 2.

[0043] In some embodiments of this utility model, such as Figure 1 and Figure 4As shown, the lower end of the side plate 3 is provided with a first fixing part 31, which extends along a first direction and is connected to the chassis 1. The length direction of the first fixing part 31 is the first direction, and one end of the width direction of the first fixing part 31 extends in a direction away from the battery cell 21. By providing the first fixing part 31, it is convenient to fix the side plate 3 to the chassis 1 through the first fixing part 31, which can reduce the difficulty of connecting the side plate 3 to the chassis 1, enhance the connection stability between the side plate 3 and the chassis 1, and provide convenience for operators, thereby improving assembly efficiency.

[0044] In some embodiments of this utility model, the first fixing part 31 is screwed or riveted to the chassis 1. The first fixing part 31 and the chassis 1 can be connected by fasteners or rivets, which can ensure the connection stability and connection strength between the side plate 3 and the chassis 1. At the same time, it can realize the detachable connection between the side plate 3 and the chassis 1. The first fixing part 31 can be separated from the chassis 1 simply by removing the fasteners or rivets, which greatly reduces the difficulty and cost of disassembly and provides convenience for the subsequent maintenance or replacement of the battery cell assembly 2.

[0045] In some embodiments of this utility model, such as Figure 1 and Figure 4 As shown, the first fixing part 31 and the side plate 3 are integral parts. For example, the first fixing part 31 and the side plate 3 can be integrally processed by stamping, which can improve the connection stability between the first fixing part 31 and the side plate 3 and improve production efficiency.

[0046] Alternatively, the first fixing part 31 and the side plate 3 can be processed separately. The first fixing part 31 and the side plate 3 can be processed separately, and then the first fixing part 31 and the side plate 3 can be connected by means such as welding. This can reduce the difficulty of production and processing, and at the same time ensure the connection stability between the first fixing part 31 and the side plate 3.

[0047] In some embodiments of this utility model, such as Figure 1 and Figure 4 As shown, multiple battery cell components 2 are arranged in a single column or multiple columns spaced apart along a second direction. This allows for the neat arrangement of multiple battery cell components 2 in rows and columns, facilitating the placement of as many battery cell components 2 as possible within the battery system 100. The orderly arrangement of the battery cell components 2 maximizes the utilization of space within the battery system 100, reducing ineffective space and thereby increasing the overall energy density of the battery system 100. When the battery system 100 malfunctions or some of its battery cell components 2 need to be replaced, the orderly arrangement makes the disassembly, reassembly, and replacement of the battery cell components 2 simpler and more convenient.

[0048] In some embodiments of this utility model, such as Figure 1 and Figure 4As shown, each column includes at least two cell assemblies 2. Along a first direction, the side plates 3 of two adjacent cell assemblies 2 in each column are connected at their closest points. This connection of adjacent cell assemblies 2 in each column via the side plates 3 ensures the stability of the connection between multiple cell assemblies 2 in each column, allowing them to form a unified whole and thus enhancing the structural stability of the battery system 100. It also maximizes the use of space within the battery system 100, reducing ineffective space and thereby increasing the energy density of the entire battery system 100.

[0049] In some embodiments of this utility model, such as Figure 1 and Figure 4 As shown, along the first direction, the side plates 3 of two adjacent battery cell assemblies 2 are provided with a second fixing part 32 at their ends closest to each other and are connected to each other. The second fixing part 32 extends in the vertical direction, wherein the first direction, the second direction, and the vertical direction are perpendicular to each other. The length direction of the second fixing part 32 is the vertical direction, and one end of the width direction of the second fixing part 32 extends in the direction away from the battery cell 21. By providing the second fixing part 32, it is convenient to connect the ends of the side plates 3 of two adjacent battery cell assemblies 2 that are closest to each other through the second fixing part 32. This can reduce the connection difficulty of two adjacent battery cell assemblies 2 in each row, enhance the connection stability between two adjacent battery cell assemblies 2 in each row, and provide convenience for operators, thereby improving assembly efficiency.

[0050] In some embodiments of this utility model, such as Figure 1 and Figure 4 As shown, the second fixing part 32 and the side plate 3 are integral parts. For example, the second fixing part 32 and the side plate 3 can be integrally processed by stamping, which can improve the connection stability between the second fixing part 32 and the side plate 3 and improve production efficiency.

[0051] Alternatively, the second fixing part 32 and the side plate 3 can be processed separately. The second fixing part 32 and the side plate 3 can be processed separately, and then the second fixing part 32 and the side plate 3 can be connected by means such as welding. This can reduce the difficulty of production and processing, and at the same time ensure the connection stability between the second fixing part 32 and the side plate 3.

[0052] In some embodiments of this utility model, such as Figure 1 and Figure 4As shown, along the first direction, the side plates 3 of two adjacent battery cell assemblies 2 are screwed or riveted together. The ends of the side plates 3 of two adjacent battery cell assemblies 2 that are close to each other can be connected by fasteners or rivets, which can ensure the connection stability and strength between adjacent side plates 3. At the same time, it can realize the detachable connection between adjacent side plates 3. Only by removing the fasteners or rivets can the two adjacent battery cell assemblies 2 in each row be separated, which greatly reduces the difficulty and cost of disassembly and provides convenience for the later maintenance or replacement of battery cell assemblies 2.

[0053] In some embodiments of this utility model, such as Figure 4 As shown, along the first direction, foam 4 is provided between two adjacent battery cells 21. Battery cells 21 expand and contract with temperature changes. Foam 4 ensures the expansion gap between adjacent cells 21, and its low hardness and high resilience absorb stress caused by thermal expansion and contraction, acting as a buffer to reduce expansion pressure between adjacent cells 21 and protect them from damage. Simultaneously, foam 4's high resilience ensures it remains in contact and adheres to adjacent cells 21. When the battery system 100 is subjected to mechanical impact or vibration, foam 4, as a buffer material, absorbs the impact force between adjacent cells 21, reducing damage and thus improving the stability and reliability of the battery assembly 2.

[0054] In some embodiments of this utility model, the side plate 3 is made of aluminum profile. Aluminum profile is lightweight and has high strength, which is beneficial to achieving the lightweight of the battery cell assembly 2, while ensuring the structural strength of the battery cell assembly 2.

[0055] It should be noted that the side plate 3 is coated with insulating paint to ensure the insulation performance of the side plate 3, and to prevent electrical conduction between the cell 21 and the side plate 3, which could lead to leakage or short circuit of the cell assembly 2, thereby ensuring the safety and reliability of the battery system 100.

[0056] In some embodiments, the battery system 100 includes a battery management system electrically connected to the cell assembly 2. The battery management system monitors and manages the status of the cell assembly 2, enabling real-time monitoring of key parameters such as voltage, current, and temperature of each cell assembly 2 within the battery system 100. It also possesses fault detection and diagnostic functions, capable of identifying abnormal states of the cell assembly 2 and taking corresponding protective measures, such as disconnecting circuits or adjusting charging and discharging strategies, to prevent safety accidents. Simultaneously, the battery management system can estimate the state of charge (SOC) of the cell assembly 2, i.e., the remaining battery capacity, through algorithms, ensuring that the cell assembly 2 operates within a reasonable charge range and preventing overcharging or over-discharging. This helps extend the lifespan of the battery system 100 and optimize its performance.

[0057] In some embodiments, the voltage of the cell assembly 2 is 24V or 48V. If the individual cell 21 is a lithium iron phosphate cell, each cell assembly 2 contains 8 individual cells 21 to form a 24V cell assembly 2, or 16 individual cells 21 as a group to form a 48V cell assembly 2. If the individual cell 21 is a ternary lithium battery cell, each cell assembly 2 contains 7 individual cells 21 to form a 24V cell assembly 2, or 14 individual cells 21 as a group to form a 48V cell assembly 2. This facilitates the direct reuse of the disassembled cell assembly 2 in other 24V or 48V circuit systems for secondary applications, thereby improving the reusability of the cell assembly 2.

[0058] The vehicle according to an embodiment of the present invention is described below.

[0059] The vehicle according to an embodiment of the present invention includes: the battery system 100 described above.

[0060] Specifically, chassis 1 is either the vehicle's beam or connected to the vehicle's beam. The battery cell assembly 2 is directly fixed to chassis 1, and then chassis 1 is connected to the vehicle's beam, thus forming a CTP (Cell-to-Pack) structure. Alternatively, chassis 1 can be integrated with the vehicle's beam, and the battery cell assembly 2 can be directly fixed to the vehicle's beam, thus forming a CTC (Cell-to-Cell) structure. Both CTP and CTC structures can effectively improve the space utilization of the vehicle's battery system 100 and increase assembly efficiency.

[0061] According to the vehicle of this utility model embodiment, by setting multiple battery cell assemblies 2 above the chassis 1, and setting multiple battery cell units 21 arranged along a first direction in each battery cell assembly 2, and setting a side plate 3 connected to the chassis 1 on at least one side of the battery cell assembly 2 along a second direction, and by connecting the side plate 3 and the battery cell units 21 with structural adhesive, the connection strength between the battery cell units 21 and the side plate 3 can be strengthened, so that the multiple battery cell units 21 in each battery cell assembly 2 form a whole, thereby facilitating installation and subsequent disassembly and maintenance. Furthermore, the connection between the multiple battery cell units 21 and the chassis 1 through the side plate 3 ensures the connection stability between the battery cell units 21 and the chassis 1, while also enabling the disassembly of the battery cell units 21 and the chassis 1, facilitating the subsequent inspection, maintenance, and reuse of the battery cell units 21.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery system characterized by, The battery system (100) comprises: a chassis (1); a plurality of cell assemblies (2), each of which comprises a plurality of cell monomers (21) and a side plate (3), the plurality of cell monomers (21) in each of the cell assemblies (2) are arranged along a first direction and are arranged above the chassis (1), and the cell assembly (2) is provided with the side plate (3) on at least one side along a second direction, the side plate (3) is connected to the cell monomer (21) through structural glue, and the side plate (3) is connected to the chassis (1).

2. The battery system of claim 1, wherein, The bottom of the cell monomer (21) is connected to the chassis (1) through heat-conducting glue, the cell monomer (21) comprises a cell body (211) and a blue film (212) wrapped outside the cell body (211), a window (213) is formed in the area opposite to the side plate (3) of the blue film (212), and at least part of the structural glue is located at the window (213).

3. The battery system of claim 1, wherein, The lower end of the side plate (3) is provided with a first fixing part (31), the first fixing part (31) extends along the first direction and is connected to the chassis (1).

4. The battery system of claim 3, wherein, The first fixing part (31) and the side plate (3) are an integral part; or the first fixing part (31) and the side plate (3) are separately processed parts; And / or, the first fixing part (31) and the chassis (1) are screw-connected or rivet-connected.

5. The battery system of claim 1, wherein, The plurality of cell assemblies (2) are arranged in one row or multiple rows arranged at intervals along the second direction.

6. The battery system of claim 5, wherein, Each row comprises at least two cell assemblies (2), and the ends of the side plates (3) of the two adjacent cell assemblies (2) in each row are connected to each other along the first direction.

7. The battery system of claim 6, wherein, The ends of the side plates (3) of the two adjacent cell assemblies (2) along the first direction are provided with second fixing parts (32) and are connected to each other, the second fixing parts (32) extend along the up-down direction, and the first direction, the second direction and the up-down direction are perpendicular to each other.

8. The battery system of claim 7, wherein, The second fixing part (32) and the side plate (3) are an integral part; or the second fixing part (32) and the side plate (3) are separately processed parts; And / or, the second fixing parts (32) of the two adjacent cell assemblies (2) are screw-connected or rivet-connected along the first direction.

9. The battery system of claim 1, wherein, Foam (4) is arranged between the two adjacent cell monomers (21) along the first direction.

10. A vehicle characterized by comprising: The battery system (100) comprises: The chassis (1) is a vehicle beam of the vehicle or the chassis (1) is connected to the vehicle beam of the vehicle.

Images