Battery module, battery, electric device and battery grouping method

Abstract

The invention provides a battery module, a battery, an electric device and a battery grouping method. The battery module includes a battery array, a top frame structural plate, and a bottom frame structural plate. The battery array comprises a plurality of battery cells which are arranged. The top frame structure plate and the bottom frame structure plate are arranged at an interval in the height direction of the battery array and are respectively connected to two sides of the height direction of the battery array, so that the plurality of battery monomers are grouped. According to the technical scheme, the top frame structure plate and the bottom frame structure plate are connected to the two sides of the battery array respectively to group the battery monomers, so that the battery array is clamped in the interlayer between the top frame structure plate and the bottom frame structure plate, the structure is simple, and the grouping efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and relates to a battery module, a battery, a power utilization device, and a battery grouping method. BACKGROUND

[0002] Batteries are widely used in vehicles to provide power for driving the vehicles. In order to meet the high power demand of the vehicles, multiple battery monomers need to be grouped. How to improve the grouping efficiency is a problem to be solved. SUMMARY

[0003] In view of the above problems, the present application provides a battery module, a battery, a power utilization device, and a battery grouping method to improve the grouping efficiency.

[0004] In a first aspect, the battery module provided by the present application comprises a battery array, a top frame structure plate, a bottom frame structure plate, a first adhesive layer, and a second adhesive layer. The battery array comprises multiple battery monomers arranged in an array. The top frame structure plate and the bottom frame structure plate are arranged in a height direction of the battery array and are respectively connected to two sides of the battery array in the height direction to group the multiple battery monomers; the first adhesive layer is arranged between the top frame structure plate and the battery array to adhere the top frame structure plate to a top end of the battery array, and the second adhesive layer is arranged between the bottom frame structure plate and the battery array to adhere the bottom frame structure plate to a bottom end of the battery array.

[0005] The technical scheme of the embodiment of the present application groups the multiple battery monomers by respectively adhering the top frame structure plate and the bottom frame structure plate to the two sides of the battery array, so that the battery array is clamped in the interlayer between the top frame structure plate and the bottom frame structure plate, the structure is simple, and the grouping efficiency is improved.

[0006] In some embodiments, the top frame structure plate and the bottom frame structure plate have a gap in the height direction.

[0007] The top frame structure plate and the bottom frame structure plate have a gap in the height direction, so that there is no direct connection relationship between the top frame structure plate and the bottom frame structure plate, and therefore, when grouping, the top frame structure plate and the battery array and the bottom frame structure plate and the battery array are only respectively connected, the operation is simpler, and the grouping efficiency is further improved.

[0008] In some embodiments, the top frame structure plate is a sheet structure; and / or, the bottom frame structure plate is a sheet structure.

[0009] The top frame structure plate and the bottom frame structure plate of the embodiments of the present application are both sheet structures, so when the top frame structure plate and the battery array are connected or the bottom frame structure plate and the battery array are connected, the top end face and the bottom end face of the battery array are the faces connected with the top frame structure plate and the bottom frame structure plate, and the side face of the battery array is hardly connected with the top frame structure plate and the bottom frame structure plate, so the area of the glue coating is reduced, and the efficiency of the battery module is further improved.

[0010] In some embodiments, the bottom frame structure plate comprises a plurality of bottom limiting structures, and the plurality of bottom limiting structures correspond to the plurality of battery monomers one by one to limit each battery monomer respectively.

[0011] The bottom limiting structure limits the position of the battery monomer, which is beneficial to prevent the position of the battery monomer from deviating due to vibration and the like during the working process of the battery module.

[0012] In some embodiments, the top frame structure plate comprises a plurality of top limiting structures, and the plurality of top limiting structures correspond to the plurality of battery monomers one by one to limit each battery monomer respectively.

[0013] The bottom frame structure plate is provided with the bottom limiting structure, and the top frame structure plate is provided with the top limiting structure, so that for each battery monomer, the top limiting structure and the bottom limiting structure located at the upper and lower ends limit the battery monomer respectively in the circumferential direction, and the position of each battery monomer is more stable.

[0014] In some embodiments, the first adhesive layer comprises a first glue layer; and / or, the second adhesive layer comprises a second glue layer.

[0015] The first glue layer is used to bond the top frame structure plate and the battery array, and the second glue layer is used to bond the battery array and the bottom frame structure plate, so that the overall rigidity of the battery module can be improved.

[0016] In some embodiments, the bottom frame structure plate comprises a bottom frame body and a plurality of first limiting members protruding on the bottom frame body, the frame body has a plurality of support frames arranged in an array, at least two first limiting members are arranged in an array in the circumferential direction of the support frame, and the at least two first limiting members form the bottom limiting structure.

[0017] When the battery module is assembled, each battery monomer is sequentially placed on each support frame, so that the at least two first limiting members arranged in the circumferential direction of the support frame form the bottom limiting structure to limit the position of the battery monomer, which is beneficial to prevent the position of the battery monomer from deviating due to vibration and the like during the working process of the battery module. Moreover, the plurality of protruding first limiting members also have the effect of improving the strength of the bottom frame structure plate.

[0018] In some embodiments, the enclosed area of each support frame is hollow. The enclosed area of each support frame is hollow to reduce the weight of the battery module.

[0019] In some embodiments, the first limiting piece has a guide slope, and the height of the guide slope gradually decreases from the outside to the inside of the support frame.

[0020] The first limiting piece of the embodiment of the application is provided with a guide slope, so that the battery monomer can be smoothly placed into the bottom limiting structure through the guide slope during the assembly of the battery module, thereby improving the assembly efficiency.

[0021] In some embodiments, the top frame structure plate includes a top frame body having a plurality of hollow frames, the plurality of hollow frames are arranged one-to-one corresponding to the plurality of battery monomers, and the enclosed area of the hollow frame is hollow to expose the end cover of the battery monomer.

[0022] The top frame structure plate of the embodiment of the application is provided as a hollow plate, so that the hollow frame exposes the end cover of the battery monomer, and when the battery monomer needs to be pressure released due to thermal runaway, the high-temperature and high-pressure substances and other emissions are discharged from the pressure release structure and through the hollow part of the hollow frame, thereby improving the use reliability of the battery module.

[0023] In some embodiments, the top frame structure plate further includes at least two second limiting pieces arranged at intervals on the edge of the hollow frame, and the at least two second limiting pieces form a top limiting structure.

[0024] The top frame structure plate is provided with a top limiting structure, so that for each battery monomer, its circumference is respectively limited by the top limiting structure and the bottom limiting structure located at the upper and lower ends, respectively, thereby making the position of each battery monomer more stable.

[0025] In some embodiments, the second limiting piece has a guide slope, and the height of the guide slope gradually decreases from the outside to the inside of the hollow frame.

[0026] The second limiting piece of the embodiment of the application is provided with a guide slope, so that the battery monomer can be smoothly placed into the top limiting structure through the guide slope during the assembly of the battery module, thereby improving the assembly efficiency.

[0027] In some embodiments, the battery module further includes a water cooling plate, and the bottom frame structure plate is connected to the water cooling plate.

[0028] The bottom frame structure plate is directly connected to the water cooling plate, so that the water cooling plate can be directly integrated when the battery module is grouped, thereby saving the step of separately integrating the water cooling plate after the battery module is grouped, simplifying the operation steps, and improving the production efficiency.

[0029] In some embodiments, the top frame structure plate is made of a fiber composite material; and / or, the bottom frame structure plate is made of a fiber composite material.

[0030] The top frame structure plate is made of a fiber composite material, and the bottom frame structure plate is made of a fiber composite material, so as to reduce the weight of the battery module and strengthen the structural strength of the battery module.

[0031] In some embodiments, the bottom frame structure plate comprises a frame body having a plurality of support frames arranged in an array, the plurality of support frames being arranged one-to-one with the plurality of battery monomers to support the plurality of battery monomers, and there being a gap between adjacent two battery monomers.

[0032] The gap between adjacent two battery monomers forms a reserved expansion space, ensuring the performance of the battery.

[0033] In a second aspect, the present application provides a battery comprising a battery box and the above-mentioned battery module, the battery module being arranged in the battery box, and the bottom frame structure plate being arranged on the bottom surface of the battery box.

[0034] In a third aspect, the present application provides a power utilization device comprising the above-mentioned battery, the battery being used to provide electric energy.

[0035] In a fourth aspect, the present application provides a grouping method based on the above-mentioned battery, comprising the following steps:

[0036] adhering the plurality of battery monomers to the bottom frame structure plate; and

[0037] adhering the top frame structure plate to the top end of the plurality of battery monomers so that the plurality of battery monomers are sandwiched between the bottom frame structure plate and the bottom frame structure plate.

[0038] The technical scheme of the embodiments of the present application groups the plurality of battery monomers by adhering the top frame structure plate and the bottom frame structure plate to the two sides of the battery array, so that the battery array is sandwiched in the interlayer between the top frame structure plate and the bottom frame structure plate, which is simple in structure and improves the grouping efficiency.

[0039] In some embodiments, the grouping method further comprises, after connecting the plurality of battery monomers to the bottom frame structure plate, pressing the plurality of battery monomers in the height direction by using a pressing device; and / or, the grouping method further comprises, after connecting the top frame structure plate to the top end of the plurality of battery monomers, pressing the top frame structure plate in the height direction by using a pressing device.

[0040] In some embodiments, adhering the plurality of battery monomers to the bottom frame structure plate comprises: applying glue on the bottom frame structure plate to connect the plurality of battery monomers.

[0041] In some embodiments, bonding the top frame structure plate to the top end of the plurality of battery cells comprises: applying glue on the top frame structure plate or the end cover of the plurality of battery cells, and placing the top frame structure plate to the top end of the plurality of battery cells after the glue is applied.

[0042] In some embodiments, before the plurality of battery cells are connected to the bottom frame structure plate, the grouping method further comprises: connecting the bottom frame structure plate to the bottom wall of the battery box.

[0043] In some embodiments, before the plurality of battery cells are connected to the bottom frame structure plate, the grouping method further comprises: pre-arranging the bottom frame structure plate on the battery tray to directly connect each battery cell to the bottom frame structure plate when the plurality of battery cells are offline.

[0044] In some embodiments, the grouping method further comprises: directly bonding each battery cell to the bottom frame structure plate when the plurality of battery cells are offline to integrate the plurality of battery cells and the bottom frame structure plate into an intermediate module, and moving the intermediate module into the battery box and connecting the intermediate module to the bottom wall of the battery box; and then connecting the top frame structure plate to the top end of the plurality of battery cells. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0046] Figure 1 is a structural schematic diagram of a vehicle of some embodiments of the present application;

[0047] Figure 2 is a partial structural schematic diagram of a battery of some embodiments of the present application;

[0048] Figure 3 is an exploded structural schematic diagram of a battery of some embodiments of the present application;

[0049] Figure 4 is an exploded structural schematic diagram of a battery module of some embodiments of the present application

[0050] Figure 5 is a side view structural schematic diagram of a battery module of the embodiment shown in Figure 4

[0051] Figure 6 is a structural schematic diagram of a top frame structure plate of some embodiments of the present application;

[0052] Figure 7 ​is a structural schematic diagram of a bottom frame structure plate of some embodiments of the present application;

[0053] Figure 8 is a step schematic diagram of a grouping method of a battery of some embodiments of the present application.

[0054] In the drawings, the drawings are not drawn according to the actual proportion.

[0055] Label explanation:

[0056] Vehicle 200;

[0057] Battery 100;

[0058] Battery box 20;

[0059] Battery module 10;

[0060] Battery array 11; battery monomer 111; shell 1111, end cover 1112, pole 1113; pressure relief structure 1114;

[0061] Top frame structure plate 12; top frame body 121; hollow frame 1211; second limiting piece 122; bottom frame structure plate 13; bottom frame body 131; support frame 1311; first limiting piece 132;

[0062] Height direction Z; first direction X; second direction Y. DETAILED DESCRIPTION

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0064] In the description of embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0065] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. One of ordinary skill in the art will readily recognize from the disclosure herein a wide number of variations, alternatives, and equivalents in the application.

[0066] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally means that the front and rear associated objects are in an“or” relationship.

[0067] In the description of the embodiments of the application, the term“a plurality of” means more than two (including two), and similarly, “a plurality of groups” means more than two groups (including two groups), and “a plurality of pieces” means more than two pieces (including two pieces).

[0068] In the description of the embodiments of the application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the application.

[0069] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0070] Reference Figure 1 and Figure 2The embodiments of the present application provide a power consuming device using the battery 100 as a power source. The power consuming device includes the battery 100 and a driving device for providing driving force for the power consuming device, and the battery 100 provides electric energy for the driving device. The driving force of the device can be all electric energy, or part of the electric energy and part of other energy (for example, mechanical energy). For example, the device can further include a power source such as an engine for providing mechanical energy. As long as the device using the battery 100 as a power source is within the protection scope of the present application.

[0071] The power consuming device of the embodiments of the present application can be a mobile device such as a vehicle, a ship, a small airplane, etc. Taking the vehicle as an example, the vehicle of the embodiments of the present application can be a new energy vehicle. The new energy vehicle can be a pure electric vehicle, or a hybrid vehicle or a range extended vehicle. Figure 1 A vehicle 200 using the battery 100 as a power source is shown. The battery 100 is arranged in the vehicle 200 and includes at least one battery module 10. The vehicle 200 is provided with a driving motor, the driving motor is electrically connected with the battery 100, the battery 100 provides electric energy for the driving motor, and the driving motor is connected with the wheels through a transmission mechanism to drive the vehicle to travel. Specifically, the battery 100 can be arranged horizontally at the bottom of the vehicle 200.

[0072] The battery 100 of the embodiments of the present application includes at least one battery module 10. Specifically, as shown in Figure 2 , the battery 100 of the embodiments of the present application includes the battery module 10 and a battery box 20 for accommodating the battery module 10. The battery box 20 has an accommodation cavity, and the battery module 10 is arranged in the accommodation cavity.

[0073] Referring to Figure 2 , the battery module 10 includes a plurality of battery monomers 111. The plurality of battery monomers 111 are arranged in an array in sequence. The battery monomer 111 can include a lithium ion secondary battery, a lithium ion primary battery, a lithium-sulfur battery, a sodium lithium ion battery, a sodium ion battery or a magnesium ion battery, etc. The embodiments of the present application are not limited thereto. The plurality of battery monomers 111 are electrically connected through a connecting sheet. The plurality of battery monomers 111 can be connected in series or in parallel under the connection of the connecting sheet.

[0074] Referring to Figure 3 , the battery monomer 111 refers to the smallest unit constituting the battery module 10. The battery monomer 111 includes a shell 1111, an end cover 1112, an electrode assembly and other functional components.

[0075] The shell 1111 is a component for cooperating with the end cover 1112 to form an internal environment of the battery cell, wherein the formed internal environment can be used to accommodate electrode assemblies, electrolytes and other components. The shell 1111 and the end cover 1112 can be independent components, and an opening can be provided on the shell, and the end cover 1112 is used to cover the opening to form the internal environment of the battery cell. The material of the shell can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the present disclosure does not make special limitations on this.

[0076] The end cover 1112 refers to a component that covers the opening of the shell 1111 to isolate the internal environment of the battery cell 111 from the external environment. Without limitation, the shape of the end cover 1112 can be adapted to the shape of the shell 1111 to cooperate with the shell. Alternatively, the end cover 1112 can be made of a material with certain hardness and strength (such as aluminum alloy), so that the end cover 1111 is not easy to deform when subjected to extrusion and collision, so that the battery cell can have higher structural strength, and the safety performance can also be improved. Functional components such as the pole 1113 can be provided on the end cover 1112. The pole 1113 can be used to electrically connect with the electrode assembly for outputting or inputting the electrical energy of the battery cell.

[0077] In some embodiments, the end cover 1112 can also be provided with a pressure relief structure 1114 for relieving the internal pressure when the internal pressure or temperature of the battery cell reaches a threshold value. The material of the end cover 1112 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the present disclosure does not make special limitations on this. In some embodiments, an insulating piece can also be provided on the inner side of the end cover 1112, which can be used to isolate the electrical connection components in the shell from the end cover to reduce the risk of short circuit. Exemplarily, the insulating piece can be plastic, rubber, etc. The pressure relief structure 1114 refers to an element or component that is actuated to relieve the internal pressure or temperature when the internal pressure or temperature of the battery cell reaches a predetermined threshold value. The threshold value is different according to different design requirements. The threshold value can depend on the material of one or more of the positive plate, the negative plate, the electrolyte and the separator in the battery cell. The pressure relief structure 1114 can take the form of a pressure relief valve, a gas valve, a pressure relief valve or a safety valve, and can specifically take the form of a pressure-sensitive or temperature-sensitive element or structure, that is, when the internal pressure or temperature of the battery cell reaches a predetermined threshold value, the pressure relief structure performs an action or a weak structure provided in the pressure relief structure is broken, thereby forming an opening or passage for the internal pressure or temperature to be relieved. When the pressure relief structure 1114 is actuated, the high-temperature and high-pressure substances in the internal environment of the battery cell will be discharged outward from the actuated part as exhaust.

[0078] The electrode assembly is a component in which electrochemical reactions occur in the battery cell. One or more electrode assemblies can be contained within the case. The electrode assembly is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet. During the charging and discharging of the battery, the positive active material and the negative active material react with the electrolyte, and the tab connects the post to form a current loop. The electrode assembly can be a wound structure or a stacked structure, and the embodiments of the present disclosure are not limited thereto.

[0079] During the research, it was found that the battery module of the related art needs to use more module components to form a plurality of battery cells into a module when grouping, which makes the assembly process complex, thereby causing the problem of low grouping efficiency.

[0080] In order to improve the grouping efficiency, some embodiments of the present application propose a battery module which uses a top frame structure plate and a bottom frame structure plate respectively connected to the upper and lower ends of the battery array to group the battery array, thereby simplifying the structure of the battery module to reduce the grouping difficulty and improve the grouping efficiency.

[0081] The structure and grouping process of the battery module of some embodiments of the present application will be described in detail below. Figures 2 to 7 The structure and grouping process of the battery module of some embodiments of the present application will be described in detail below.

[0082] Referring to Figures 2 to 4 , the battery module 10 of some embodiments of the present application includes a battery array 11, a top frame structure plate 12 and a bottom frame structure plate 13. The battery array 11 includes a plurality of battery cells 111 arranged in an array. The top frame structure plate 12 and the bottom frame structure plate 13 are arranged in the height direction Z of the battery array 11 and are respectively connected to the two sides of the height direction Z of the battery array 11 to group the plurality of battery cells 111.

[0083] As shown in Figure 3 and Figure 4 , the battery array 11 includes a plurality of battery cells 111 arranged in an array. In some embodiments, the battery array 11 includes a plurality of battery cells 111 arranged in a first direction X. The first direction X refers to the width direction of the battery cell 111, that is, the plurality of battery cells 111 are arranged in sequence in the width direction to form a battery column. In other embodiments, the battery array 11 includes a plurality of battery columns arranged in a second direction Y. The second direction Y refers to the length direction of the battery cell 111, that is, the plurality of battery columns are arranged in sequence in the length direction of the battery cell 111 to form the battery array. Each battery column includes a plurality of battery cells 111 arranged in the first direction X. In this way, the battery array 11 includes a plurality of battery columns arranged in the second direction Y. Figure 4 The battery array 11 of the embodiment shown includes a plurality of battery cells 111 arranged in sequence in the first direction X and the second direction Y.

[0084] Moreover, the end covers 1112 of the plurality of battery cells 111 are oriented in the same direction, so that the end covers 1112 of the plurality of battery cells 111 are all oriented to one side. In Figure 4 In the illustrated embodiment, the end covers 1112 of the plurality of battery cells 111 are all oriented upward, that is, the end covers 1112 are all located at the upper end of the battery array, the top frame structure plate 12 is arranged on the upper side of the battery array 11, and the bottom frame structure plate 13 is arranged on the lower side of the battery array 11. That is, the top frame structure plate 12 is arranged on the side of the battery array 11 where the end covers are arranged, and the bottom frame structure plate 13 is arranged on the opposite side of the battery array 11 where the end covers are arranged.

[0085] As shown in Figure 3 and Figure 4 The top frame structure plate 12 and the bottom frame structure plate 13 are respectively connected on both sides in the height direction Z. Both the top frame structure plate 12 and the bottom frame structure plate 13 are plate structures, which are different from box structures. The box structure generally has a bottom wall and a side wall arranged around the bottom wall in the circumferential direction, and the bottom wall and the side wall enclose a containing cavity. The top frame structure plate 12 and / or the bottom frame structure plate 13 of the embodiment of the present application do not have a containing cavity, and are plate structures. Specifically, in the illustrated embodiment, the top frame structure plate 12 is a mesh plate. The bottom frame structure plate 13 is a mesh plate. Figure 3 Figure 4 The top frame structure plate 12 is a mesh plate. The bottom frame structure plate 13 is a mesh plate.

[0086] The top frame structure plate 12 and the bottom frame structure plate 13 are arranged in a spaced manner in the height direction Z of the battery array 11, which means that there is a gap between the top frame structure plate 12 and the bottom frame structure plate 13.

[0087] The technical solution of the embodiment of the present application groups the plurality of battery cells 111 by connecting the top frame structure plate 12 and the bottom frame structure plate 13 on both sides of the battery array 11, so that the battery array 11 is clamped in the interlayer between the top frame structure plate 12 and the bottom frame structure plate 13, which has a simple structure and improves the grouping efficiency.

[0088] In some embodiments, the battery module 10 further comprises a first adhesive layer arranged between the top frame structure plate 12 and the battery array 11. The battery module 10 further comprises a second adhesive layer arranged between the bottom frame structure plate 13 and the battery array 11.

[0089] ​The first adhesive layer is arranged between the top frame structure plate 12 and the battery array 11, and the second adhesive layer is arranged between the bottom frame structure plate 13 and the battery array 11, so that the top frame structure plate 12 is connected to the battery array 11 through the first adhesive layer, the bottom frame structure plate 13 is connected to the battery array 11 through the second adhesive layer, and then the plurality of battery arrays 11 are formed into an integrated structure in the interlayer formed by the top frame structure plate 12 and the bottom frame structure plate 13, the rigidity of the battery module is improved, and the vibration resistance, extrusion resistance and impact resistance of the battery module are better improved.

[0090] In some embodiments, the top frame structure plate 12 and the bottom frame structure plate 13 have a gap in the height direction Z.

[0091] When the battery is grouped, the plurality of battery monomers 111 of the battery array 11 are first connected to the bottom frame structure plate 13, and then the top frame structure plate 12 is connected to the top end of the plurality of battery monomers 111. For example, the battery array 11 and the bottom frame structure plate 13 or the top frame structure plate 12 are connected by gluing.

[0092] The top frame structure plate 12 and the bottom frame structure plate 13 have a gap in the height direction Z, so that the top frame structure plate 12 and the bottom frame structure plate 13 do not have a direct connection relationship, and therefore when grouping, the top frame structure plate 12 and the battery array 11 and the bottom frame structure plate 13 and the battery array 11 are connected respectively, which is more simple to operate and further improves the grouping efficiency.

[0093] Reference Figure 4 In some embodiments, the top frame structure plate 12 is a sheet structure. The bottom frame structure plate 13 is a sheet structure.

[0094] Specifically, the top frame structure plate 12 is a sheet structure arranged to cover the top end of the battery array 11. The bottom frame structure plate 13 is a sheet structure arranged to cover the bottom end of the battery array 11. Here, cover means that it extends in the coverage range of the entire battery array 11, but extension does not mean that it is entirely physically tiled in the coverage range. Specifically, in the embodiment shown in the drawings, the top frame structure plate 12 and the bottom frame structure plate 13 are both net-shaped plates, and both are hollow plates. That is, although extended, it can also have hollow parts. Figure 4 In the embodiment shown, the bottom frame structure plate 13 and the top frame structure plate 12 are both net-shaped plates, and both are hollow plates. That is, although extended, it can also have hollow parts.

[0095] As Figure 4As shown, the battery monomer 111 includes a shell 1111, an end cover 1112, a pole 1113 and a pressure relief structure 1114. The end cover 1112 is located at the top end of the battery monomer 111. The end opposite to the top end is the bottom end. The shell 1111 is a cuboid structure with an opening, which includes a bottom wall and a side wall surrounding the bottom wall in the circumferential direction. The opening is opposite to the bottom wall. The position of the side wall is the side of the battery monomer 111.

[0096] The top frame structure plate 12 and the bottom frame structure plate 13 of the embodiment of the present application are both sheet structures, so when the top frame structure plate 12 and the battery array 11 are connected or the bottom frame structure plate 13 and the battery array 11 are connected, the top end face and the bottom end face of the battery array 11 are the faces connected with the top frame structure plate 12 and the bottom frame structure plate 13, and the side face of the battery array 11 is almost not connected with the top frame structure plate 12 and the bottom frame structure plate 13, so the area of gluing is reduced, and the efficiency of grouping is further improved.

[0097] In order to stabilize the positions of the battery monomers 111 during operation, in some embodiments, the bottom frame structure plate 13 includes a plurality of bottom limiting structures. The plurality of bottom limiting structures correspond to the plurality of battery monomers 111 one by one to limit each battery monomer 111.

[0098] As shown in the figure, Figure 7 As shown, the bottom frame structure plate 13 includes a bottom frame body 131 and a plurality of first limiting members 132 protruding on the bottom frame body 131. The bottom frame body 131 has a plurality of support frames 1311 arranged. At least two first limiting members 132 are arranged in the circumferential direction of each support frame 1311. The at least two first limiting members 132 form a bottom limiting structure.

[0099] The bottom frame body 131 has a plurality of support frames 1311. The plurality of support frames 1311 are arranged one by one corresponding to the plurality of battery monomers 111. As shown in the figure, Figure 7 As shown, the bottom frame body 131 is formed by a plurality of longitudinal rods extending in the first direction X and a plurality of transverse rods extending in the second direction Y crossing each other, so that the bottom frame body 131 has a plurality of support frames 1311. In this specific embodiment, the region surrounded by the support frame 1311 is hollowly arranged, thereby reducing the weight of the battery module.

[0100] The plurality of first limiting members 132 protrude on the bottom frame body 131, so when the battery monomer 111 is placed on the support frame 1311 of the bottom frame body 131, the plurality of first limiting members 132 will form a limiting action on the battery monomer 111 in the circumferential direction, forming a bottom limiting structure.

[0101] When the battery module is grouped, each battery monomer 111 is sequentially placed on each support frame 1311, so that the at least two first limiting members 132 arranged in the circumferential direction of the support frame 1311 form a bottom limiting structure to limit the position of the battery monomer 111, which is beneficial to prevent the position of the battery monomer 111 from deviating due to vibration during the operation of the battery module.

[0102] In order to further effectively ensure the position stability of the battery monomer 111, in some embodiments, the top frame structure plate 12 includes a plurality of top limiting structures. The plurality of top limiting structures correspond one-to-one to the plurality of battery monomers 111 to limit each battery monomer 111 respectively.

[0103] As shown in Figure 6 The top frame structure plate 12 includes a top frame body 121 and a plurality of second limiting members 122 protruding on the top frame body 121. The top frame body 121 has a plurality of hollow frames 1211. At least two second limiting members 122 are arranged at intervals on the edges of the hollow frames 1211, and the at least two second limiting members 122 form a top limiting structure. The enclosed area of the hollow frame 1211 is hollowly arranged to expose the end cover of the battery monomer 111.

[0104] The upper and lower ends of the battery array 11 are respectively provided with the top frame structure plate 12 and the bottom frame structure plate 13, so that the top frame structure plate 12 is connected with the top end surface of the battery array 11, and the bottom frame structure plate 13 is connected with the bottom end surface of the battery array 11, thereby realizing the limiting in the height direction of the battery array 11. The bottom frame structure plate 13 is provided with a bottom limiting structure, and the top frame structure plate 12 is provided with a top limiting structure, so that for each battery monomer, its circumferential direction is respectively limited by the top limiting structure and the bottom limiting structure located at the upper and lower ends, thereby making the position of each battery monomer 111 more stable.

[0105] In some embodiments, the first adhesive layer includes a first glue layer. The second adhesive layer includes a second glue layer.

[0106] The first glue layer includes glue. The second glue layer includes glue. Specifically, glue can be applied on the bottom frame structure plate 13 or on the bottom end surface of the battery array 11. Glue can be applied on the top frame structure plate 12 or on the top end surface of the battery array 11.

[0107] By bonding the top frame structure plate 12 and the battery array 11 through the first glue layer, and bonding the battery array 11 and the bottom frame structure plate 13 through the second glue layer, the overall rigidity of the battery module can be improved.

[0108] In some embodiments, the bottom frame structure plate 13 comprises a bottom frame body 131 and a plurality of first limiting members 132 arranged on the frame body 131. The frame body 131 has a plurality of support frames 1311 arranged in an array. The plurality of support frames 1311 are arranged one-to-one corresponding to the plurality of battery monomers 111. At least two first limiting members 132 are arranged at intervals in the circumferential direction of the support frame 1311. The at least two first limiting members 132 form a bottom limiting structure.

[0109] By arranging the support frame 1311 corresponding to each battery monomer 111 to support each battery monomer 111, and arranging at least two first limiting members 132 in the circumferential direction of each support frame 1311 to form a bottom limiting structure, when the battery module is assembled, each battery monomer 111 is sequentially placed one by one on each support frame 1311, so that the at least two first limiting members 132 arranged in the circumferential direction of the support frame 1311 form a bottom limiting structure to limit the position of the battery monomer 111, which helps to prevent the position of the battery monomer 111 from deviating due to vibration during the operation of the battery module. Moreover, the plurality of protruding first limiting members 132 also have the effect of improving the strength of the bottom frame structure plate 13.

[0110] In some embodiments, the enclosed area of each support frame 1311 is hollow. The enclosed area of each support frame 1311 is hollow to reduce the weight of the battery module.

[0111] As shown in Figure 7 When the battery monomer 111 of the battery module 10 is connected to the support frame 1311, the support frame 1311 is supported below the bottom end of the battery monomer 111. By arranging the enclosed area of each support frame 1311 to be hollow, when the battery module 10 is placed in the battery box 20, the bottom end of the battery monomer 111 is in communication but not in contact with the bottom wall of the battery box 20, so that this part of the space forms a flow space for condensed water generated during use of the battery, effectively avoiding the problem of conduction caused by direct contact with the battery monomer.

[0112] In some embodiments, the support frame 1311 is a square frame.

[0113] In some embodiments, the plurality of support frames 1311 are arranged one-to-one corresponding to the plurality of battery monomers 111 to support the plurality of battery monomers 111. And there is a gap between adjacent two battery monomers 111.

[0114] That is, the area of the support frame 1311 is arranged to be larger than the area of the battery monomer 111, so that there is a gap between adjacent two battery monomers 111, forming a reserved expansion space to ensure the performance of the battery.

[0115] In some embodiments, the first limiting member 132 has a guide slope, and the height of the guide slope gradually decreases from the outer side of the support frame 1311 to the inner side.

[0116] The direction from the outer side of the support frame 1311 to the inner side refers to the direction from the circumferential edge of the support frame 1311 towards the center. Specifically, the surface of the first limiting member 132 close to the battery monomer 111 is provided with a guide slope. As shown in FIG. 6, the bottom frame structure plate 13 includes a bottom frame body 131 and a plurality of first limiting members 132. Each first limiting member 132 is arranged at the intersection position of the longitudinal rod and the transverse rod. In order to limit a plurality of battery monomers in the circumferential direction of the intersection position at the same time, as shown in FIG. 6, the first limiting member 132 is arranged at the intersection position of the longitudinal rod and the transverse rod. Figure 7 Figure 7 As shown in FIG. 6, part of the first limiting member is a cross type, and part of the first limiting member is a T type. That is, the first limiting member 132 is used to limit the plurality of battery monomers 111, so the first limiting member 132 includes a plurality of guide slopes, and each guide slope is arranged on the surface of the first limiting member 132 close to each battery monomer.

[0117] The first limiting member 132 of the embodiment of the application is provided with a guide slope, so that in the process of assembling the battery module 10, the battery monomer 111 can be smoothly placed into the bottom limiting structure through the guide slope, thereby improving the assembly efficiency.

[0118] In some embodiments, the top frame structure plate 12 includes a top frame body 121. The top frame body 121 has a plurality of hollow frames 1211. The hollow frames 1211 are hollowly arranged to expose the end cover of the battery monomer 111.

[0119] The top frame structure plate 12 of the embodiment of the application is arranged as a hollow plate, so that the hollow frame 1211 exposes the end cover of the battery monomer 111, and when the battery monomer is in thermal runaway and needs to be pressure released, the high-temperature and high-pressure substances and other emissions are discharged from the pressure release structure and through the hollow part of the hollow frame 1211, thereby improving the use reliability of the battery module.

[0120] In some embodiments, the top frame structure plate 12 further includes at least two second limiting members 122 arranged at intervals on the edge of the hollow frame 1211. The at least two second limiting members 122 form a top limiting structure.

[0121] The top frame structure plate 12 is provided with a top limiting structure, so that for each battery monomer, the circumferential direction thereof is respectively limited by the top limiting structure and the bottom limiting structure located at the upper and lower ends, respectively, thereby making the position of each battery monomer 111 more stable.

[0122] ​In some embodiments, the second limiting member 122 has a guide slope, and the height of the guide slope gradually decreases from the outer side of the hollow frame to the inner side.

[0123] The direction from the outer side of the hollow frame 1211 to the inner side refers to the direction from the circumferential edge of the hollow frame 1211 towards the center. Specifically, the surface of the second limiting member 122 close to the battery cell 111 is provided with a guide slope. As shown in FIG. 6, the top frame structure plate 12 includes a top frame body 121 and a plurality of second limiting members 122. Each second limiting member 122 is arranged at the intersection position of the longitudinal rod and the transverse rod. In order to limit a plurality of battery cells in the circumferential direction of the intersection position at the same time, as shown in FIG. 6, the top frame structure plate 12 is provided with a plurality of second limiting members 122. Figure 6 Figure 6 As shown in FIG. 6, part of the second limiting member 122 is in a cross shape, and part of the second limiting member 122 is in a T shape. That is, the second limiting member 122 is used to limit the plurality of battery cells 111, and therefore each second limiting member 122 includes a plurality of guide slopes, and each guide slope is arranged on the surface of the second limiting member 122 close to each battery cell.

[0124] The second limiting member 122 of the embodiment of the present application is provided with a guide slope, so that in the process of assembling the battery module 10, the battery cell 111 can be smoothly placed into the top limiting structure through the guide slope, thereby improving the assembly efficiency.

[0125] In some embodiments, the top frame structure plate 12 is made of a fiber composite material. The bottom frame structure plate 13 is made of a fiber composite material.

[0126] The top frame structure plate 12 is made of a fiber composite material, and the bottom frame structure plate 13 is made of a fiber composite material, so that the weight of the battery module 10 can be reduced, and the structural strength of the battery module 10 can be strengthened.

[0127] In some embodiments, the battery module 10 further includes a water cooling plate. The bottom frame structure plate 13 is connected to the water cooling plate.

[0128] Directly connecting the bottom frame structure plate 13 to the water cooling plate makes it possible to directly integrate the water cooling plate when the battery module 10 is assembled, thereby omitting the step of separately integrating the water cooling plate after the battery module 10 is assembled, simplifying the operation steps, and improving the production efficiency.

[0129] Some embodiments of the present application further provide a battery including the battery module 10 described above. The battery module 10 is arranged in the battery box 20, and the bottom frame structure is arranged on the bottom surface of the battery box 20.

[0130] Some embodiments of the present application further provide a power utilization device including the battery described above. The battery is used to provide electric energy.

[0131] ​Reference Figure 8 The embodiments of the present application also provide a grouping method based on the above battery, comprising the following steps:

[0132] S610, connecting the plurality of battery monomers 111 to the bottom frame structure plate 13; and

[0133] S620, connecting the top frame structure plate 12 to the top end of the plurality of battery monomers 111 so that the plurality of battery monomers 111 are sandwiched between the bottom frame structure plate 12 and the bottom frame structure plate 13.

[0134] The technical scheme of the embodiments of the present application groups the plurality of battery monomers 111 by connecting the top frame structure plate 12 and the bottom frame structure plate 13 to the two sides of the battery array 11, so that the battery array 11 is sandwiched in the interlayer between the top frame structure plate 12 and the bottom frame structure plate 13, which is simple in structure and improves the grouping efficiency.

[0135] In some embodiments, connecting the plurality of battery monomers 111 to the bottom frame structure plate 13 comprises: gluing on the bottom frame structure plate 13 to connect the plurality of battery monomers 111.

[0136] In some embodiments, connecting the top frame structure plate 12 to the top end of the plurality of battery monomers 111 comprises: gluing on the top frame structure plate 12 or the end cover of the plurality of battery monomers 111, and placing the top frame structure plate 12 to the top end of the plurality of battery monomers 111 after gluing.

[0137] The glue is used to connect the battery monomers 111 and the top frame structure plate 12 and the bottom frame structure plate 13, which can improve the overall rigidity of the battery module.

[0138] In some embodiments, the grouping method further comprises, after connecting the plurality of battery monomers 111 to the bottom frame structure plate 13, pressing the plurality of battery monomers 111 in the height direction Z by using a pressing device.

[0139] After completing the gluing and placing the battery monomers 111 on the bottom frame structure plate 13, the plurality of battery monomers 111 are pressed by using a pressing device, so that the battery monomers 111 can be deeply arranged in the support frame 1311 of the bottom frame structure plate 13, so that the battery monomers 111 and the support frame 1311 of the bottom frame structure plate 13 complete the deep adhesion, and the connection strength of the battery module is improved.

[0140] The grouping method further comprises, after connecting the top frame structure plate 12 to the top end of the plurality of battery monomers 111, pressing the top frame structure plate 12 in the height direction Z by using a pressing device.

[0141] After applying the adhesive and connecting the top frame structure plate 12 to the top of the multiple battery cells 111, the top frame structure plate 12 is pressurized using a pressurizing device. This allows the battery cells 111 to be deeply bonded to the top frame structure plate 12, improving the connection strength of the battery module.

[0142] In some embodiments, before connecting the multiple battery cells 111 to the bottom frame structure plate 13, the grouping method further includes pre-attaching the bottom frame structure plate 13 to the bottom wall of the battery box 20. This allows the battery cells 111 to be directly placed into the battery box 20 and the grouping process to be completed within the battery box 20, eliminating the need to move the entire battery module into the battery box after grouping, thus saving the transfer process and improving efficiency.

[0143] In some embodiments, before connecting the plurality of battery cells 111 to the bottom frame structure plate 13, the grouping method further includes: pre-setting the bottom frame structure plate 13 on the battery tray so that each battery cell 111 can be directly connected to the bottom frame structure plate 13 when the plurality of battery cells 111 are off the production line.

[0144] When the battery cells are placed on the battery tray after they come off the production line, the bottom frame structure plate can be bonded to the battery cells. In other words, the production line process is directly connected with the assembly process, which eliminates the transfer process between the two processes and further improves efficiency.

[0145] In some embodiments, the grouping method further includes: directly connecting each battery cell 111 to the bottom frame structure plate 13 when the multiple battery cells 111 are off the production line so that the multiple battery cells 111 and the bottom frame structure plate 13 are integrated into an intermediate module, and moving the intermediate module into the battery box 20 and connecting it to the bottom wall of the battery box 20; and then connecting the top frame structure plate 12 to the top of the multiple battery cells 111.

[0146] The following is based on Figures 2 to 8 The structure of a battery module according to a specific embodiment of this application and the corresponding assembly method are described in detail.

[0147] like Figure 2 As shown, the battery 100 in this embodiment includes a battery case 20 and a battery module 10 disposed within the battery case 20.

[0148] like Figure 3 As shown, the battery module 10 includes a battery array 11, a top frame structure plate 12, and a bottom frame structure plate 13. The battery array 11 includes a plurality of battery cells 111 arranged in an array. Each battery cell 111 includes a housing 1111, an end cap 1112, a terminal post 1113, and a pressure relief structure 1114.

[0149] The top frame structure plate 12 and the bottom frame structure plate 13 are connected to the upper and lower sides of the battery array 11 respectively, and the top frame structure plate 12 and the bottom frame structure plate 13 form a sandwich structure to sandwich the battery array 11. Moreover, the top frame structure plate 12 is connected to the top end surface of the battery array 11 by glue, and the bottom frame structure plate 13 is connected to the bottom end surface of the battery array 11 by glue, so that the top frame structure plate 12, the battery array 11 and the bottom frame structure plate 13 are assembled to form a module, the structure is simple, the assembly process is simplified, and the assembly efficiency is improved.

[0150] Moreover, the structure of the battery module 10 realizes modularization, and the cost can be reduced.

[0151] In some embodiments, as shown in Figure 6 The top frame structure plate 12 is a square hollow frame structure plate. As shown in Figure 7 The bottom frame structure plate 13 is also a square hollow frame structure plate. The square hollow frame structure plate is manufactured by opening a square hole in a solid plate, and the solid plate can be a plastic plate or a composite plate, so the manufacturing process is simple.

[0152] In some embodiments, considering the long-term cycle expansion of the battery monomer itself, a certain expansion space needs to be reserved when designing the top frame structure plate 12 and the bottom frame structure plate 13, so as to improve the service life and performance of the battery.

[0153] Specifically, as shown in Figure 7 When the battery monomer 111 is bonded to the bottom frame structure plate 13, two adjacent battery monomers 111 are placed on two adjacent support frames 1311. Since the two adjacent support frames 1311 share the same longitudinal rod or transverse rod, in order to have a gap between the two adjacent battery monomers 111, the width of the longitudinal rod and / or the transverse rod needs to be set larger so that when the two adjacent battery monomers 111 are placed on the two adjacent support frames 1311, there is still a gap between the two battery monomers 111.

[0154] Here, the width of the longitudinal rod and / or the transverse rod refers to the size of the longitudinal rod and / or the transverse rod in the direction perpendicular to the extension direction of the longitudinal rod and / or the transverse rod. For example, when the longitudinal rod and / or the transverse rod is a circular rod, the width refers to the diameter. For example, when the longitudinal rod and / or the transverse rod is a square rod, the width refers to the width of the square cross section.

[0155] As shown in Figure 7 The bottom frame structure plate 13 includes a bottom frame body 131 and a first limiting piece 132 protruding on the bottom frame body 131. Moreover, the first limiting piece 132 is arranged at the intersection of the transverse rod and the longitudinal rod to enhance the strength of the bottom frame structure plate 13.

[0156] The first limiting member 132 is used to limit the battery monomer 111. Further, in order to improve the assembly efficiency, the first limiting member 132 has a guide slope, so that when the battery monomer 111 is placed on the bottom frame structure plate 13, the guide slope plays a guiding role, and the battery monomer can be quickly and smoothly assembled.

[0157] Figure 6 The structure of the top frame structure plate 12 of the embodiment is shown, and the structure can be referred to Figure 7 The structure of the bottom frame structure plate 13 is shown, which will not be repeated here.

[0158] As shown in Figure 2 and Figure 3 When the battery module 10 is assembled into the battery box 20, the bottom frame structure plate 13 is in close contact with the bottom surface of the battery box 20, and because the bottom frame structure plate 13 has a certain thickness (size in the height direction Z), the battery monomer 111 is thus isolated from the bottom surface of the battery box 20, so that the problem of the battery bottom conduction caused by the condensate water generated during use of the battery and accumulated at the bottom can be avoided.

[0159] In some embodiments, the top frame structure plate 12 and the bottom frame structure plate 13 are fiber composite materials.

[0160] The grouping method of the battery 100 of the embodiment can have various embodiments.

[0161] For example, in the first embodiment, the bottom frame structure plate 13 can be first bonded to the bottom surface of the cleaned battery box 20; and the bottom surface of the battery box 20 is glued, and the glue needs to be coated on the bottom surface of the battery box 20. The plurality of battery monomers 111 are placed one by one in the respective support frames 1311 of the bottom frame structure plate 13, and then the plurality of battery monomers 111 are pressed in the height direction Z, so that the battery monomers can be pressed downward by the bottom frame structure plate 13 and the glue on the bottom surface of the battery box 20 is pressed open to completely adhere; the top frame structure plate 12 is pre-coated with glue (the glue can also be coated on the end cover of the plurality of battery monomers 111) and then buckled to the end cover of the plurality of battery monomers 111, and then pressed in the height direction Z, at this time, the assembly into the box is completed, and the battery as shown in Figure 2 is formed.

[0162] The second embodiment is to put the plurality of battery monomers 111 on the pre-glued bottom frame structure plate 13 one by one, then pressurize the plurality of battery monomers 111 in the height direction Z, so that the battery monomers can be pressed into the bottom frame structure plate 13; the top frame structure plate 12 is pre-glued (the glue can also be applied to the end cover of the plurality of battery monomers 111) and then buckled to the end cover of the plurality of battery monomers 111, and then pressurized in the height direction Z, to complete the grouping of the battery module. Then, the bottom of the battery box 20 is glued, and the bottom of the box needs to be fully glued; the grouped battery module is hoisted into the battery box 20 and pressurized in the Z direction, so that it is pressed open and fully attached, completing the in-box assembly and forming the battery.

[0163] The second embodiment is to put the plurality of battery monomers 111 on the pre-glued bottom frame structure plate 13 one by one, then pressurize the plurality of battery monomers 111 in the height direction Z, so that the battery monomers can be pressed into the bottom frame structure plate 13; the top frame structure plate 12 is pre-glued (the glue can also be applied to the end cover of the plurality of battery monomers 111) and then buckled to the end cover of the plurality of battery monomers 111, and then pressurized in the height direction Z, to complete the grouping of the battery module. Then, the bottom of the battery box 20 is glued, and the bottom of the box needs to be fully glued; the grouped battery module is hoisted into the battery box 20 and pressurized in the Z direction, so that it is pressed open and fully attached, completing the in-box assembly and forming the battery.

[0164] As can be seen from the above description, in the assembly process, through the pressurization in the height direction, the two ends of the battery array 11 in the height direction will be partially pressed into the top frame structure plate 12 and the bottom frame structure plate 13, that is, the top frame structure plate 12 and the bottom frame structure plate 13 will cover part of the height of the side surface of the battery array 11, so that when the insulating film is attached to the side surface of the battery array 11, it only needs to be attached to part of the side surface of the battery array 11, without the need for upward folding, thereby reducing the difficulty of attaching the insulating film and further achieving the effect of reducing the cost and improving the efficiency of the battery.

[0165] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery module (10), comprising: The battery array (11) includes multiple battery cells (111) arranged in an array; The top frame structure plate (12) and the bottom frame structure plate (13) are spaced apart in the height direction (Z) of the battery array (11) and are respectively connected to both sides of the height direction (Z) of the battery array (11) so that the multiple battery cells (111) are grouped together. A first adhesive layer is disposed between the top frame structure plate (12) and the battery array (11) to bond the top of the battery array (11); and A second adhesive layer is disposed between the bottom frame structure plate (13) and the battery array (11) to bond the bottom frame structure plate (13) to the bottom end of the battery array (11).

2. The battery module according to claim 1, wherein, The top frame structure plate (12) and the bottom frame structure plate (13) have a gap in the height direction (Z).

3. The battery module according to claim 1 or 2, wherein, The top frame structure plate (12) is a sheet structure; and / or, the bottom frame structure plate (13) is a sheet structure.

4. The battery module according to any one of claims 1 to 3, wherein, The bottom frame structure plate (12) includes multiple bottom limiting structures, and the multiple bottom limiting structures correspond one-to-one with the multiple battery cells (111) to limit each battery cell (111) respectively.

5. The battery module according to any one of claims 1 to 4, wherein, The top frame structure plate (12) includes multiple top limiting structures, which correspond one-to-one with the multiple battery cells (111) to limit each battery cell (111) respectively.

6. The battery module according to any one of claims 1 to 5, wherein the first adhesive layer comprises a first adhesive layer; and / or, the second adhesive layer comprises a second adhesive layer.

7. The battery module according to any one of claims 1 to 6, wherein, The bottom frame structure plate (13) includes a bottom frame body (131) and a plurality of first limiting members (132) protruding from the bottom frame body (131). The frame body (131) has a plurality of support frames (1311) arranged in a plurality of arrangement. At least two of the first limiting members (132) are spaced apart in the circumferential direction of the support frames (1311), and the at least two first limiting members (132) form a bottom limiting structure.

8. The battery module according to claim 7, wherein, The enclosed area of ​​each of the support frames (1311) is hollow.

9. The battery module according to claim 7, wherein, The first limiting member (132) has a guide slope, the height of which gradually decreases from the outside to the inside of the support frame (1311).

10. The battery module according to any one of claims 1 to 6, wherein, The top frame structure plate (12) includes a top frame body (121), which has multiple hollow frames (1211). The multiple hollow frames (1211) are arranged in a one-to-one correspondence with the multiple battery cells (111), and the enclosed area of ​​the hollow frame (1211) is hollow so that the end cap of the battery cell (111) is exposed.

11. The battery module according to claim 10, wherein, The top frame structure plate (12) also includes at least two second limiting members (122) spaced apart on the edge of the hollow frame (1211), the at least two second limiting members (122) forming a top limiting structure.

12. The battery module according to claim 11, wherein, The second limiting member (122) has a guide slope, the height of which gradually decreases from the outside to the inside of the hollow frame.

13. The battery module according to any one of claims 1 to 12, wherein the battery module further comprises a water-cooling plate, and the bottom frame structure plate (13) is connected to the water-cooling plate.

14. The battery module according to any one of claims 1 to 13, wherein, The top frame structure panel (12) is made of fiber composite material; and / or, the bottom frame structure panel (13) is made of fiber composite material.

15. The battery module according to any one of claims 1 to 14, wherein, The bottom frame structure plate (13) includes a frame body (131), which has a plurality of support frames (1311) arranged in a row. The plurality of support frames (1311) are arranged one-to-one with the plurality of battery cells (111) to support the plurality of battery cells (111), and there is a gap between two adjacent battery cells (111).

16. A battery (100) comprising a battery case (20) and a battery module (10) as claimed in any one of claims 1 to 15, the battery module (10) being disposed within the battery case (20), and the bottom frame structure plate (13) being disposed on the bottom surface of the battery case (20).

17. An electrical device comprising a battery (100) as claimed in claim 16, the battery (100) being used to provide electrical energy.

18. A method for assembling batteries based on the battery of claim 16, comprising the following steps: The plurality of battery cells (111) are bonded to the bottom frame structure plate (13); and The top frame structure plate (12) is glued to the top of the plurality of battery cells (111) so that the plurality of battery cells (111) are sandwiched between the bottom frame structure plate (12) and the bottom frame structure plate (13).

19. The battery assembly method according to claim 18, the assembly method further comprising, after connecting the plurality of battery cells (111) to the bottom frame structure plate (13), pressurizing the plurality of battery cells (111) in the height direction (Z) using a pressurizing device; and / or, the assembly method further comprising, after connecting the top frame structure plate (12) to the top of the plurality of battery cells (111), pressurizing the top frame structure plate (12) in the height direction (Z) using a pressurizing device.

20. The battery assembly method according to claim 18, wherein bonding the plurality of battery cells (111) to the bottom frame structure plate (13) comprises: Adhesive is applied to the bottom frame structure plate (13) to connect the plurality of battery cells (111).

21. The battery assembly method according to claim 18, wherein attaching the top frame structure plate (12) to the top of the plurality of battery cells (111) comprises: Apply adhesive to the top frame structure plate (12) or the end caps of the plurality of battery cells (111), and after applying adhesive, place the top frame structure plate (12) on top of the plurality of battery cells (111).

22. The battery assembly method according to claim 18, further comprising, before bonding the plurality of battery cells (111) to the bottom frame structure plate (13): The bottom frame structure plate (13) is connected to the bottom wall of the battery box (20).

23. The battery assembly method according to claim 18, further comprising, before bonding the plurality of battery cells (111) to the bottom frame structure plate (13): The bottom frame structure plate (13) is pre-set on the battery tray so that each battery cell (111) can be directly connected to the bottom frame structure plate (13) when multiple battery cells (111) are off the production line.

24. The battery packing method according to claim 23, further comprising: When multiple battery cells (111) are off the production line, each battery cell (111) is directly glued to the bottom frame structure plate (13) so that the multiple battery cells (111) and the bottom frame structure plate (13) are integrated into an intermediate module, and the intermediate module is moved into the battery box (20) and connected to the bottom wall of the battery box (20); then the top frame structure plate (12) is connected to the top of the multiple battery cells (111).

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