Battery system and vehicle

Abstract

The invention provides a battery system and a vehicle, the battery system comprises a first box body, a second cover body, a battery cell support and a battery cell, the first box body and the second cover body are matched to form a battery cell accommodating space, the battery cell is installed on the battery cell support, and the battery cell support is installed in the battery cell accommodating space; the first box body and the second cover body are prepared by taking resin as a base material and taking continuous glass fibers as a reinforcing material; the battery cell bracket is prepared from a polycarbonate material and a terpolymer of acrylonitrile, butadiene and styrene. The battery system disclosed by the embodiment of the invention is relatively light in weight and relatively high in energy density.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle batteries, and in particular to a battery system and a vehicle. Background Art

[0002] As the global demand for energy conservation and emission reduction becomes increasingly urgent, new energy vehicles are developing rapidly. Compared with traditional fuel vehicles, new energy vehicles use batteries as the "heart" of the vehicle, which can effectively reduce greenhouse gas emissions and promote green social and economic development.

[0003] In the related art, the battery system of an automobile generally uses a box made of aluminum alloy and steel materials to contain the battery cells.

[0004] However, the above-mentioned box structure causes the overall weight of the battery system to be relatively large, which limits the energy efficiency of new energy vehicles. Summary of the invention

[0005] In view of this, the present disclosure provides a battery system and a vehicle, wherein the battery system has a light weight and a high energy density.

[0006] Specifically, the following technical solutions are included:

[0007] In a first aspect, an embodiment of the present disclosure provides a battery system, comprising a first box, a second cover, a cell holder and a cell, wherein the first box and the second cover cooperate to form a cell accommodating space, the cell is mounted on the cell holder, and the cell holder is mounted on the cell accommodating space;

[0008] The first box body and the second cover body are made of resin as a base material and continuous glass fiber as a reinforcing material;

[0009] The battery core bracket is made of polycarbonate material and a terpolymer of acrylonitrile, butadiene and styrene.

[0010] Optionally, the battery system further comprises a bottom protection plate, wherein the bottom protection plate is mounted on a side of the first box body away from the second cover body;

[0011] The bottom protection plate is prepared by using resin as a base material and using continuous glass fiber as a reinforcing material.

[0012] Optionally, the battery system further includes a serpentine liquid cooling plate, the number of the serpentine liquid cooling plates is multiple; the number of the battery cells is multiple and arranged in an array; each of the serpentine liquid cooling plates is arranged between two adjacent rows of battery cells;

[0013] The serpentine liquid cooling plate is made of aluminum profiles.

[0014] Optionally, the first box body further comprises a first beam structure extending along a first direction, and the first beam structure divides the first box body into the battery cell accommodating space and the component installation space;

[0015] The battery system further comprises an optical fiber regulator, a battery pack disconnecting unit assembly and a battery management system assembly, wherein the optical fiber regulator, the battery pack disconnecting unit assembly and the battery management system assembly are installed in the component installation space;

[0016] The battery system further comprises an optical fiber sensor and an optical fiber. The optical fiber sensor is arranged on the battery core and is connected to the optical fiber regulator via the optical fiber.

[0017] Optionally, the first box body further comprises at least one second beam structure extending along a second direction and located in the component installation space, and the second direction intersects or is perpendicular to the first direction;

[0018] The battery pack disconnect unit assembly and the battery management system assembly are mounted on the second beam structure;

[0019] The battery system further comprises a first mounting bracket, and the optical fiber regulator is mounted on the second beam structure via the first mounting bracket.

[0020] Optionally, the first box body further comprises a third beam structure extending along the first direction, and the third beam structure divides the battery cell accommodating space into a first sub-battery cell accommodating space and a second sub-battery cell accommodating space;

[0021] The battery cells are divided into two groups, which are respectively located in the first sub-battery cell accommodating space and the second sub-battery cell accommodating space.

[0022] Optionally, the battery cell support comprises a plate-shaped body, one side of the plate-shaped body has battery cell mounting grooves arranged in an array, and the other side of the plate-shaped body has a plurality of mounting convex strips;

[0023] The battery cell is installed in the battery cell installation groove, and the installation convex strip is fixedly connected to the inner wall of the first box body.

[0024] Optionally, the bottom of the battery cell installation groove has a through hole penetrating the plate-shaped body, and foam glue is filled between the battery cell bracket and the inner wall of the first box body.

[0025] Optionally, the first box body and the second cover body are both an integral structure formed by compression molding; and the battery cell bracket is an integral structure formed by injection molding.

[0026] On the other hand, an embodiment of the present disclosure provides a vehicle, comprising any one of the battery systems described above.

[0027] The disclosed embodiment provides a battery system and a vehicle, wherein the battery cell holder and the battery cell mounted on the battery cell holder in the battery system are arranged in a battery cell accommodation space formed by the cooperation of a first box body and a second cover body, and the first box body and the second cover body are made of a resin material as a base material and continuous glass fiber as a reinforcing material, which makes the entire box structure formed have high strength and light weight. At the same time, the battery cell holder is made of polycarbonate material and a terpolymer of acrylonitrile, butadiene and styrene, which further reduces the weight of the battery system and improves the energy density of the battery system on the basis of ensuring strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A schematic diagram of the exploded structure of a battery system provided in an embodiment of the present disclosure;

[0030] Figure 2 A schematic diagram of a top view of a first box in a battery system provided in an embodiment of the present disclosure;

[0031] Figure 3 A schematic diagram of the arrangement of a first box and some components located in the first box in a battery system provided by an embodiment of the present disclosure;

[0032] Figure 4 A partial structural schematic diagram of a battery system provided in an embodiment of the present disclosure;

[0033] Figure 5 A partial cross-sectional view of a battery cell support in a battery system provided by an embodiment of the present disclosure;

[0034] Figure 6 A schematic diagram of an arrangement of a serpentine liquid cooling plate in a battery system provided by an embodiment of the present disclosure;

[0035] Figure 7 A partial structural schematic diagram of a battery system provided in an embodiment of the present disclosure;

[0036] Figure 8 A partial structural schematic diagram of a battery system provided in an embodiment of the present disclosure.

[0037] The reference numerals in the figures represent respectively:

[0038] 01-first box; 011-first beam structure; 012-second beam structure; 013-third beam structure;

[0039] 02- second cover;

[0040] 03-battery cell bracket; 031-plate-shaped body; 0311-battery cell mounting groove; 0312-mounting convex strip; 0313-through hole;

[0041] 04-battery cell; 05-bottom protection plate;

[0042] 06-Serpentine liquid cooling plate; 061-Straight connecting pipe; 062-Bent connecting pipe;

[0043] 07-fiber optic regulator; 08-battery pack circuit breaker unit assembly; 09-battery management system assembly; 10-fiber optic sensor; 11-optical fiber; 12-first mounting bracket;

[0044] a-cell accommodating space; a1-first sub-cell accommodating space; a2-second sub-cell accommodating space;

[0045] b- Component installation space.

[0046] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0048] The directional nouns involved in the embodiments of the present disclosure, such as "upper", "lower", "side", etc., are generally based on the relative directional relationship between the structures when the components of the battery system are usually arranged, and these directional nouns are used only to more clearly describe the relationship between structures, not to describe the absolute directional. When the components of the battery system are placed in different postures, the directional position may change, for example, "upper" and "lower" may be interchangeable.

[0049] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meanings as commonly understood by those of ordinary skill in the art.

[0050] In order to make the technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0051] First, refer to Figure 1-8 , an embodiment of the present disclosure provides a battery system.

[0052] refer to Figure 1 The battery system provided by the embodiment of the present disclosure includes a first box body 01, a second cover body 02, a battery holder 03 and a battery cell 04. The first box body 01 and the second cover body 02 cooperate to form a battery cell accommodating space a. The battery cell 04 is installed in the battery holder 03. The battery holder 03 is installed in the battery cell accommodating space a.

[0053] The first box body 01 and the second cover body 02 are made of resin as a base material and continuous glass fiber as a reinforcing material;

[0054] The battery cell support 03 is made of polycarbonate material and a terpolymer of acrylonitrile, butadiene and styrene.

[0055] In the disclosed embodiment, the cell holder in the battery system and the cell mounted on the cell holder are arranged in a cell accommodation space formed by the cooperation of the first box body and the second cover body, and the first box body and the second cover body are made of resin material as the base material and continuous glass fiber as the reinforcement material, which makes the entire box structure formed have higher strength and lighter weight (compared with the traditional aluminum alloy and steel battery system, the weight of the battery system disclosed in the present invention is reduced by about 30%). At the same time, the cell holder is made of polycarbonate material and a terpolymer of acrylonitrile, butadiene and styrene (ABS plastic), which further reduces the weight of the battery system while ensuring strength. By reducing the weight of the battery system, the overall energy density of the battery system can be significantly improved, and the cruising range of vehicles equipped with the battery system can also be greatly improved.

[0056] It should be noted that the "reinforcement" described in the present disclosure refers to the overlapping of multiple continuous glass fiber skeletons with interlayer spacing. Optionally, the weight of the skeleton accounts for 65%-75% of the weight of the entire material.

[0057] Optionally, the preparation material of the battery holder: the weight ratio of the polycarbonate material and the ABS plastic can be 3:2 or 4:1, or a ratio between the two ratios.

[0058] Optionally, the first box body 01 is a box-type structure without a cover, that is, it has a bottom and side walls around it. Figure 1The first box body 01 may be a box body structure with an opening in the z direction. The second cover body 02 may be fixedly connected to the end of the side wall of the first box body 01 to seal the opening of the first box body 01. The fixed connection here may be fixedly connected by means of colloid bonding or by using fixing parts such as bolts.

[0059] In some embodiments, reference Figure 1 The battery system further includes a bottom protection plate 05, which is mounted on a side of the first box body 01 away from the second cover body 02;

[0060] The bottom protection plate 05 is made of resin as a base material and continuous glass fiber as a reinforcing material.

[0061] In this embodiment, by providing a bottom protection plate, the side of the first box away from the second cover can be protected. In this way, even in a severe collision condition, the bottom of the first box is not prone to serious collapse, thereby protecting the battery cell from damage. At the same time, the bottom protection plate is made of the aforementioned materials, which also ensures that the overall weight of the battery system is relatively light, which is conducive to improving the energy efficiency of the vehicle.

[0062] Optionally, the bottom protection plate 05 can be fixed to the side wall of the first box body 01 by means of a plurality of bolts (including but not limited to rivet bolts) and mounting holes around the bottom protection plate (the bottom protection plate 05 can be formed into a structure similar to the first box body 01, i.e., having a bottom and side walls). The number of bolts used can be 22-26 (e.g., 24) to ensure a relatively stable connection.

[0063] Optionally, a self-foaming silicone gasket is filled between the bottom protection plate 05 and the side wall of the first box 01 to achieve a sealing effect; the gap between the bottom protection plate 05 and the bottom of the first box 01 is filled with silicone foam to achieve a heat preservation effect. The ratio of the area of ​​the silicone foam to the area of ​​the bottom of the first box 01 can be between 70% and 80% (such as 75%) to ensure a good heat preservation effect.

[0064] Optionally, the second cover 02 can be fixed to the side wall end of the first box body 01 by means of multiple bolts (including but not limited to rivet bolts) and multiple openings around the second cover. The number of bolts used can be 80-85 (such as 82) to ensure a more stable connection. Optionally, the second cover 02 and the side wall end of the first box body 01 can be sealed by a self-foaming silicone gasket (which can be a ring or ring structure), where the self-foaming silicone gasket can be 3mm thick and 8mm wide.

[0065] Optionally, silicone foam may be used to fill the space between the second cover 02 and the array of battery cells 04 to achieve a heat preservation effect. The second cover 02 may also include a side wall and a bottom, that is, a relatively concave space. The ratio of the area of ​​the silicone foam to the area of ​​the bottom of the second cover 02 may be between 70% and 80% to achieve a good heat preservation effect.

[0066] In some embodiments, reference Figure 1 The battery system further includes a serpentine liquid cooling plate 06, and the number of the serpentine liquid cooling plates 06 is multiple; the number of the battery cells 04 is multiple and arranged in an array (arranged in an array in the x-direction and y-direction as shown in the figure); each serpentine liquid cooling plate 06 is arranged between two adjacent rows of battery cells 04;

[0067] The serpentine liquid cooling plate 06 is made of aluminum profiles.

[0068] In this embodiment, the serpentine liquid cooling plate is arranged in the gaps between the cells arranged in the array, which can efficiently adjust the temperature of the cells so that the cells always work within the optimal temperature range, which is beneficial to avoid high temperature damage or fire of the cells, and is also beneficial to improve the temperature balance of the cells at different positions. The use of aluminum profiles to prepare the serpentine liquid cooling plate is also beneficial to improve the thermal conductivity of the serpentine liquid cooling plate and improve the thermal conductivity efficiency.

[0069] At the same time, the present invention adopts a module-free Cell To Pack (CTP) design, which eliminates the module end plates and side plates compared to the traditional design, and can further improve the space utilization of the battery system.

[0070] Optionally, multiple serpentine liquid cooling plates 06 can be arranged in parallel, and each serpentine liquid cooling plate as a whole can extend in the y direction as shown in the figure. Adjacent serpentine liquid cooling plates in multiple serpentine liquid cooling plates can be connected by means of straight connecting pipes 061 at both ends, so that the coolant can circulate in a large range to efficiently dissipate heat from the battery cell. Each serpentine liquid cooling plate can extend in a wavy shape in its extension direction (the y direction as shown in the figure) to increase the heat conduction area, thereby increasing the heat dissipation efficiency of the battery cell.

[0071] In some embodiments, reference Figure 1-2 The first box body 01 also has a first beam structure 011 extending along a first direction (in the figure, along the y direction), and the first beam structure 011 divides the first box body 01 into a battery cell accommodating space a and a component installation space b;

[0072] The battery system further includes an optical fiber regulator 07, a battery pack disconnecting unit assembly 08 and a battery management system assembly 09, and the optical fiber regulator 07, the battery pack disconnecting unit assembly 08 and the battery management system assembly 09 are installed in the component installation space b;

[0073] The battery system further includes an optical fiber sensor 10 and an optical fiber 11 . The optical fiber sensor 10 is arranged on the battery core 04 and is connected to the optical fiber regulator 07 via the optical fiber 11 .

[0074] In this embodiment, the first beam structure itself can improve the anti-collision ability of the box, and at the same time divide the first box into a battery cell accommodating space and a component installation space, so that the battery cells and other control or detection components inside the first box can be arranged in partitions, thereby improving the space utilization efficiency of the first box. The fiber optic regulator, fiber optic sensor and optical fiber can cooperate to accurately detect the state of the battery cell, for example, to achieve continuous monitoring of the temperature and deformation of the battery system in dynamic or static conditions. By selecting fiber optic sensors and optical fibers of different specifications, the temperature detection accuracy can reach 0.1°C, and the deformation detection accuracy can reach 0.1mm.

[0075] Optionally, the optical fiber sensor 10 and the optical fiber 11 are connected one-to-one, and the number of optical fiber sensors 10 can be multiple, evenly arranged on the cells in the cell array. After receiving the signal from the optical fiber 11, the optical fiber moderator 07 transmits the signal to the BMS for processing.

[0076] Optional, reference Figure 2 The first box body 01 also has at least one second beam structure 012 extending along a second direction (in the figure, along the x direction) and located in the component installation space b, and the second direction intersects or is perpendicular to the first direction;

[0077] refer to Figure 3 , a battery disconnect unit (BDU) component 08 and a battery management system (BMS) component 09 are installed on the second beam structure 012;

[0078] The battery system also includes a first mounting bracket 12 , and the optical fiber moderator 07 is mounted on the second beam structure 012 via the first mounting bracket 12 .

[0079] In this embodiment, on the one hand, the impact resistance of the box at the component installation space is improved by means of the second beam structure, and on the other hand, the battery pack circuit breaker unit component and the battery management system component can be installed on the second beam structure to achieve fixed installation of these components. The optical fiber regulator is installed on the second beam structure with the help of the first mounting bracket, which is beneficial to improving the installation accuracy of the optical fiber regulator on the one hand, and reducing the impact of external impact (including extrusion, vibration impact, etc.) on the operation of the optical fiber regulator on the other hand.

[0080] Optionally, the first mounting bracket 12 can be bonded to the second beam structure 012 by epoxy resin glue. The first mounting bracket 12 can be independently prepared relative to the first box body 01 to reduce the difficulty of molding the box body.

[0081] It should be noted that Figure 3-4 There are two battery pack disconnect unit assemblies (similar to battery management system assemblies) with the same number indicating different positions. This is because the battery pack disconnect unit assembly can include two parts (such as a main board and a slave board), and these two parts can be installed relatively independently.

[0082] Optionally, the battery management system assembly may also be installed on the battery pack disconnect unit assembly.

[0083] Optionally, the battery system may also include a fast charging plug-in, a slow charging plug-in, an explosion-proof valve or an interface for communicating with the entire vehicle. These components can be installed on one side of the first box body (such as the front side, i.e., the side close to the front of the vehicle); the battery system may also include a motor control unit (MCU for short), which can be installed together with the water inlet and outlet of the serpentine liquid cooling plate on the other side of the first box body (such as the rear side, i.e., the side close to the rear of the vehicle).

[0084] Optional, reference Figure 1-2 The first box body 01 also has a third beam structure 013 extending along the first direction, and the third beam structure 013 divides the battery cell accommodating space a into a first sub-battery cell accommodating space a1 and a second sub-battery cell accommodating space a2;

[0085] The battery cells 04 are divided into two groups, which are respectively located in the first sub-battery cell accommodating space a1 and the second sub-battery cell accommodating space a2.

[0086] Based on the above configuration, the ability of the first box to resist external impact is further enhanced. At the same time, the battery cells are divided into two groups, and the two groups of battery cells can be controlled and operated relatively independently, so that even if a group of battery cells has problems and cannot work normally, the operation of the whole vehicle can still be maintained with the help of the other group of battery cells, thereby improving the operation stability of the whole vehicle.

[0087] Optional, reference Figure 1 and 6, the serpentine liquid cooling plate 06 can be divided into two groups, one for cooling the two groups of battery cells 04 respectively. Different groups of serpentine liquid cooling plates can be connected by means of bent connecting pipes to achieve avoidance at the third beam structure 013. Optionally, each group of serpentine liquid cooling plates includes 8 serpentine liquid cooling plates, and accordingly, the number of straight connecting pipes used to connect adjacent serpentine liquid cooling plates in each group is 14. The straight connecting pipe is finally connected to the water inlet and outlet, and the water inlet and outlet can be located on one side of the first box body, such as the side close to the rear of the vehicle, etc., which is not specifically limited in the present disclosure. To ensure a high circulation efficiency of the coolant, the extension direction of the straight connecting pipe can be parallel to the ground.

[0088] Optionally, the surface of each serpentine liquid cooling plate is coated with a thermally conductive structural adhesive, and the thickness of the thermally conductive structural adhesive may be 1 mm to improve the thermal conductivity of the battery cell. The thermally conductive structural adhesive may be epoxy resin glue or polyurethane glue.

[0089] Optional, reference Figure 1 and Figure 4 The number of the battery cell holders 03 can be two, each used to carry two groups of battery cells.

[0090] In some embodiments, reference Figure 4-5 The cell support 03 includes a plate-shaped body 031, one side of the plate-shaped body 031 has cell installation grooves 0311 arranged in an array, and the other side of the plate-shaped body 031 has a plurality of installation ridges 0312;

[0091] The battery cell 04 is installed in the battery cell installation groove 0311 , and the installation convex strip 0312 is fixedly connected to the inner wall of the first box body 01 .

[0092] In this embodiment, the battery cell can be stably installed on the battery cell holder with the help of the battery cell mounting groove without falling off easily. The installation convex strip is arranged so that an air gap is formed between the inner wall of the first box body and the plate-like main body (that is, the battery cell is suspended in the air). The air gap can exchange the heat of the battery cells at different positions in a larger range, which is beneficial to improve the temperature balance of the battery cells at different positions. Combined with the cooling effect of the serpentine liquid cold plate, the battery cell can actually dissipate heat efficiently on its side and bottom surfaces, and the heat exchange area is effectively increased (compared to the traditional heat exchange area, the increase can be up to four times), the heat exchange efficiency is also greatly improved (compared to the traditional heat exchange effect, the increase can be up to 200%), and the rate is also greatly improved.

[0093] Optionally, the mounting convex strip 0312 may be bonded to the inner wall of the first box body 01. The bonding here may be achieved by structural adhesive, and the composition of the structural adhesive may be epoxy resin adhesive or polyurethane adhesive.

[0094] Optional, reference Figure 5The bottom of the cell installation groove 0311 has a through hole 0313 penetrating the plate-shaped body 031 , and foam glue is filled between the cell support 03 and the inner wall of the first box body 01 .

[0095] By means of the through holes and the foam glue filled between the battery cells and the inner wall of the first box body, the battery cells can be further heat-conducted, so that the temperature of the battery cells at different positions is more balanced, and the failure rate of the battery cells is reduced. At the same time, the foam glue can further fix the battery cells and reduce the impact of external impact (such as extrusion, vibration or impact, etc.) on the battery cells, so as to better protect the battery cells. The foam glue here can be environmentally friendly glue, specifically polyurethane copolymer (mainly) + chlorinated paraffin (secondarily).

[0096] In some embodiments, the first box body 01 and the second cover body 02 are both integral structures formed by compression molding; and the battery cell support 03 is an integral structure formed by injection molding.

[0097] Based on the above settings, many traditional gluing or welding processes can be omitted, which not only makes assembly simpler, but also significantly improves the air tightness and temperature stability of the structure. It can also effectively reduce the amount of glue used in the battery system, reduce exhaust emissions, and be more environmentally friendly.

[0098] Optionally, the first box 01, its internal beam structure, and 90% of its external brackets connected to the vehicle are integrally molded. Some independently prepared brackets (such as the first mounting bracket) are bonded to the first box using high-strength environmentally friendly glue, and the components of the high-strength environmentally friendly glue here may include polyurethane copolymer (mainly) and chlorinated paraffin (secondarily).

[0099] Optionally, the first box body 01, the second cover body 02 and the bottom protection plate 05 may all include multiple layers of continuous glass fiber skeletons as reinforcement materials, where the role or function of the continuous glass fiber skeleton is similar to that of steel bars in reinforced concrete.

[0100] Optionally, the reinforcing material of the first box 01 and the second cover 02 may include 1-2 layers, 2-6 layers or 4-6 layers of continuous glass fiber skeleton; the reinforcing material of the bottom protection plate 05 may include 2-6 layers or 1-2 layers of continuous glass fiber skeleton. Optionally, the reinforcing material of the first box 01 includes 5 layers of continuous glass fiber skeleton, the reinforcing material of the second cover 02 includes 2 layers of continuous glass fiber skeleton, and the reinforcing material of the bottom protection plate 05 includes 3 layers of continuous glass fiber skeleton.

[0101] Optionally, the battery cell 04 may be a cylindrical battery cell, so that the number of battery cells arranged in the first box can be greater. Accordingly, the battery cell installation groove 0311 on the battery cell bracket 03 may be a cylindrical groove to improve the convenience of battery cell installation.

[0102] Optionally, the side wall of the cell installation groove 0311 has colloid, and the outer side wall of the cell 04 also has colloid, and the colloid can ensure that the cell 04 is more stably installed in the cell installation groove 0311. The colloid here can be the aforementioned structural glue.

[0103] Optionally, the radius of the cylindrical battery cell is in the range of 20-30 mm, such as 26 mm. The height of the battery cell can be in the range of 80-110 mm. The number of battery cells can be in the range of 700-800, such as 768 (correspondingly, the number of battery cell mounting slots on the battery cell holder should also be at least 768, that is, there should be 384 on each holder). The battery cell can be installed in the battery cell mounting slot with the negative pole facing the bottom of the slot.

[0104] To sum up, the weight of the battery system provided by the embodiment of the present disclosure is significantly reduced, the space utilization rate is significantly improved, the energy density is effectively improved, and more or higher energy density battery modules are allowed to be loaded with the same volume, which can greatly improve the effective driving mileage of new energy vehicles; the thermal stability and insulation properties of the composite material are also beneficial to improving the overall performance and safety of the battery system; the battery cells in the battery system are "suspended" by the battery cell holder, and the heat dissipation efficiency and heat exchange area are significantly improved; with the help of components such as optical fiber regulators, continuous and accurate monitoring of the temperature and deformation state of the battery cells is achieved, which is beneficial to ensure that the working state of the battery cells is always stable; the various structural parts and battery cell holders that constitute the box body are all integrally formed, seamless and without welding, less exhaust gas is emitted during production, the amount of organic sealing glue used in the battery system is also reduced, and the air tightness and temperature stability of the system are also greatly increased.

[0105] In a second aspect, an embodiment of the present disclosure provides a vehicle, which includes any battery system as described above.

[0106] The weight of the battery system of the vehicle provided by the embodiment of the present disclosure is significantly reduced, the space utilization rate is significantly improved, and the energy density is effectively improved, which can greatly improve the effective driving mileage of new energy vehicles; the battery cells in the battery system are "suspended" by the battery cell brackets, and the heat dissipation efficiency and heat exchange area are significantly improved; with the help of components such as optical fiber regulators, continuous and accurate monitoring of the temperature and shape status of the battery cells is achieved, which is conducive to ensuring that the working state of the battery cells is always stable.

[0107] In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

[0108] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only.

[0109] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A battery system, characterized in that: The battery comprises a first box body (01), a second cover body (02), a battery cell support (03) and a battery cell (04), wherein the first box body (01) and the second cover body (02) cooperate to form a battery cell accommodating space (a), the battery cell (04) is installed on the battery cell support (03), and the battery cell support (03) is installed on the battery cell accommodating space (a); The first box body (01) and the second cover body (02) are made of resin as a base material and continuous glass fiber as a reinforcing material; The battery cell support (03) is made of polycarbonate material and a terpolymer of acrylonitrile, butadiene and styrene.

2. The battery system according to claim 1, characterized in that: It also includes a bottom protection plate (05), wherein the bottom protection plate (05) is installed on a side of the first box body (01) away from the second cover body (02); The bottom protection plate (05) is prepared using resin as a base material and continuous glass fiber as a reinforcing material.

3. The battery system according to claim 1, characterized in that: It also includes a serpentine liquid cooling plate (06), the number of the serpentine liquid cooling plates (06) is multiple; the number of the battery cells (04) is multiple and arranged in an array; each of the serpentine liquid cooling plates (06) is arranged between two adjacent rows of battery cells (04); The serpentine liquid cooling plate (06) is made of aluminum profile.

4. The battery system according to claim 1, characterized in that: The first box body (01) further comprises a first beam structure (011) extending along a first direction, and the first beam structure (011) divides the first box body (01) into the battery cell accommodating space (a) and the component installation space (b); The battery system further comprises an optical fiber regulator (07), a battery pack disconnecting unit assembly (08) and a battery management system assembly (09), wherein the optical fiber regulator (07), the battery pack disconnecting unit assembly (08) and the battery management system assembly (09) are installed in the component installation space (b); The battery system further comprises an optical fiber sensor (10) and an optical fiber (11); the optical fiber sensor (10) is arranged on the battery core (04) and is connected to the optical fiber regulator (07) via the optical fiber (11).

5. The battery system according to claim 4, characterized in that: The first box (01) also has at least one second beam structure (012) extending along a second direction and located in the component installation space (b), wherein the second direction intersects or is perpendicular to the first direction; The battery pack disconnect unit component (08) and the battery management system component (09) are mounted on the second beam structure (012); The battery system further comprises a first mounting bracket (12), and the optical fiber regulator (07) is mounted on the second beam structure (012) via the first mounting bracket (12).

6. The battery system according to claim 4, characterized in that: The first box body (01) further comprises a third beam structure (013) extending along the first direction, wherein the third beam structure (013) divides the battery cell accommodating space (a) into a first sub-battery cell accommodating space (a1) and a second sub-battery cell accommodating space (a2); The battery cells (04) are divided into two groups, which are respectively located in the first sub-battery cell accommodating space (a1) and the second sub-battery cell accommodating space (a2).

7. The battery system according to any one of claims 1 to 6, characterized in that: The battery cell support (03) comprises a plate-shaped body (031), one side of the plate-shaped body (031) has battery cell mounting grooves (0311) arranged in an array, and the other side of the plate-shaped body (031) has a plurality of mounting convex strips (0312); The battery cell (04) is installed in the battery cell installation groove (0311), and the installation convex strip (0312) is fixedly connected to the inner wall of the first box body (01).

8. The battery system according to claim 7, characterized in that: The bottom of the battery cell installation groove (0311) has a through hole (0313) penetrating the plate-shaped body (031), and foam glue is filled between the battery cell bracket (03) and the inner wall of the first box body (01).

9. The battery system according to any one of claims 1 to 6 and 8, characterized in that: The first box body (01) and the second cover body (02) are both integral structures formed by compression molding; and the battery cell support (03) is an integral structure formed by injection molding.

10. A vehicle, characterized in that: The vehicle comprises a battery system as claimed in any one of claims 1 to 9.

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