Battery drying device and battery production system

Abstract

A battery drying device (100) and a battery production system. The battery drying device (100) comprises a frame (10), a vacuum assembly (80), and an evaporation member (20). The frame (10) is provided with an accommodating cavity (11), and the accommodating cavity (11) is used for accommodating battery cells (300). The vacuum assembly (80) comprises an air suction member (81) and an air suction pipe (82). The air suction member (81) is communicated with openings of the battery cells (300) by means of the air suction pipe (82), and the air suction member (81) is used for suctioning internal air of the battery cells (300) so as to form a vacuum inside the battery cells (300). The interior of the vacuum assembly (80) is hermetically isolated from the accommodating cavity (11). The evaporation member (20) is disposed in the accommodating cavity (11), the evaporation member (20) is used for generating steam, and the steam can come into contact with casings of the battery cells (300) so as to dry the interiors of the battery cells (300). The battery drying device (100) and the battery production system can accelerate the heating speed of the battery cells (300) during drying, thereby improving the drying efficiency of the battery cells (300).

Description

Battery drying device and battery production system

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202421545198.7, filed on July 2, 2024, entitled “Battery drying device and battery production system,” the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of batteries, and in particular to a battery drying device and a battery production system. BACKGROUND

[0004] After the battery cell is formed by a process, it needs to be placed in a vacuum heating furnace for proper heating treatment according to a predetermined time and temperature, thereby completing the drying process of the battery cell.

[0005] However, in the process of heating and drying the battery cell, the temperature rising speed of the battery cell is often slow, which leads to low heating efficiency of the battery cell. Therefore, how to improve the temperature rising speed during the drying process of the battery cell is an important research direction in the field.

[0006] Practical new type content

[0007] The embodiments of the present application provide a battery drying device and a battery production system, which can accelerate the temperature rising speed during the drying of the battery cell and improve the drying efficiency of the battery cell.

[0008] In one aspect, according to the embodiments of the present application, a battery drying device is provided, which includes a frame, a vacuum assembly, and an evaporation member. The frame has a receiving cavity for accommodating a battery cell. The vacuum assembly includes a suction member and a suction pipeline. The suction member is in communication with an opening of the battery cell through the suction pipeline, and is used to absorb the internal air of the battery cell to form a vacuum inside the battery cell. The inside of the vacuum assembly is airtight from the receiving cavity. The evaporation member is arranged in the receiving cavity and is used to generate steam, which can contact the shell of the battery cell to dry the inside of the battery cell.

[0009] By placing the battery monomer in the accommodating cavity of the frame and setting the evaporation piece in the accommodating cavity, the battery monomer in the accommodating cavity is heated and dried by the steam generated by the evaporation piece. At this time, the vacuum assembly can ensure that the inside of the battery monomer is in a vacuum state, prevent external steam from entering the inside of the battery monomer, and the generated steam can exchange heat with the inside of the battery monomer through the shell of the battery monomer to complete the drying of the inside of the battery monomer. The rapid diffusion of the steam in the accommodating cavity can faster complete the heating and drying process of the battery monomer, so that the inside of the accommodating cavity can be quickly heated, the drying rate of the battery monomer is accelerated, the overall heating efficiency is improved, and the production efficiency of the battery is improved, which is beneficial to accelerating the preparation process of the battery. At the same time, the battery monomer in the accommodating cavity is heated and dried by the steam. Due to the diffusion characteristics of the steam, the steam can uniformly heat the battery monomer at different positions, improve the uniformity of the drying of the battery monomer, reduce the risk of uneven heating of the battery monomer, thereby having better heating and drying effect and improving the heating and drying process.

[0010] According to an aspect of the embodiment of the present application, the drying device comprises a condensing piece, one end of the condensing piece is connected with the accommodating cavity and the other end is connected with the evaporation piece, and the condensing piece can convert the steam into liquid. By setting the condensing piece connected with the evaporation piece in the heating device, the steam can be condensed into liquid by the condensing piece, so that the condensing piece can convert the steam in the accommodating cavity into liquid and return to the evaporation piece, thereby realizing the recycling of the intermediate medium, completing the overall waste heat recovery, reducing the energy utilization cost and energy loss, and being beneficial to saving energy and achieving the purpose of reducing cost and increasing efficiency.

[0011] According to an aspect of the embodiment of the present application, the drying device comprises a driving piece, one end of the driving piece is connected with the accommodating cavity and the other end is connected with the condensing piece, and the driving piece can drive the steam to flow. By setting the driving piece in the heating device, the driving ability of the driving piece is utilized to drive the steam, thereby providing power for the flow of the steam, which is beneficial to the circulation of the intermediate medium in the system, accelerates the circulation process of the medium, improves the generation rate of the steam, and thereby accelerates the temperature rise of the battery monomer in the accommodating cavity and improves the drying efficiency of the battery monomer.

[0012] According to an aspect of the embodiment of the present application, the frame comprises a main body part and a heat preservation part, the main body part has an opening, and the heat preservation part is movably connected to the main body part and used to cover the opening to form the accommodating cavity. By setting the heat preservation part at the opening of the main body part of the frame, the opening of the main body part is closed by utilizing the characteristic that the heat preservation part can move relative to the main body part, so that the accommodating cavity forms a sealed cavity, which is beneficial to the diffusion and heating of the steam in the sealed accommodating cavity, reduces the loss of temperature, makes the steam better heat the battery monomer in the accommodating cavity, and further improves the temperature rise rate of the battery monomer and improves the heating and drying effect of the battery monomer.

[0013] According to an aspect of the embodiments of the present application, the frame has a plurality of accommodating cavities, and the frame further comprises a spacing portion, and two adjacent accommodating cavities are arranged in a spaced manner in the height direction of the frame by the spacing portion. By dividing the frame into a plurality of accommodating cavities by the spacing of the spacing portion, each accommodating cavity can independently perform the heating and drying operation on the battery monomer, which facilitates to increase the number of battery monomers to be dried, improves the overall drying capacity of the heating device, and further improves the heating efficiency of the plurality of battery monomers, which is beneficial to simultaneously dry a large number of battery monomers and speeds up the heating and drying process.

[0014] According to an aspect of the embodiments of the present application, the drying device comprises an air guide member connected with the frame and communicating with the accommodating cavity, and the air guide member is used to introduce the gas outside the accommodating cavity into the accommodating cavity to discharge the steam. By arranging the air guide member communicating with the accommodating cavity of the frame, the steam can be discharged in time by the air guide member after completing the drying of the battery monomer, which reduces the subsequent influence of excessive steam on the battery monomer, ensures the safety performance of the battery monomer while realizing the drying.

[0015] In another aspect, the embodiments of the present application provide a battery production system, which comprises the battery drying device, the clamp and the transfer mechanism as described above, the clamp is used to place the battery monomer, and the transfer mechanism is used to place the clamp into the accommodating cavity.

[0016] By placing the battery monomer in the accommodating cavity of the frame and arranging the evaporation member in the accommodating cavity, the battery monomer in the accommodating cavity is heated and dried by the steam generated by the evaporation member. The rapid diffusion of the steam in the accommodating cavity can faster complete the heating and drying process of the battery monomer, so that the inside of the accommodating cavity can be quickly heated, the drying rate of the battery monomer is accelerated, the overall heating efficiency is improved, and the production efficiency of the battery is further improved, which is beneficial to speed up the preparation process of the battery. At the same time, the battery monomer in the accommodating cavity is heated and dried by the steam. Due to the diffusion characteristics of the steam, the steam can uniformly heat the battery monomers at different positions, improve the uniformity of the drying of the battery monomers, reduce the risk of uneven heating of the battery monomers, thereby having better heating and drying effect and improving the heating and drying process.

[0017] According to an aspect of the embodiments of the present application, the clamp comprises a plurality of partitions and a support member located at the lower side of the partition, and the plurality of partitions are arranged in a spaced manner in the height direction of the clamp, and the partition is used to support the battery monomer. By arranging a plurality of partitions in the clamp, the partitions are used to support the battery monomers, thereby improving the number of battery monomers carried by the clamp, which is beneficial to simultaneously complete the heating and drying process of a plurality of battery monomers and improves the overall drying capacity of the heating device, thereby having higher heating efficiency.

[0018] According to an aspect of the embodiments of the present application, the support member comprises a first portion and a second portion, the first portion and the second portion are arranged in a spaced manner in the first direction and extend in the second direction, the partition plate and the first portion and the second portion enclose a heating cavity, and the evaporation member is arranged in the heating cavity. By using the first portion and the second portion of the support member and the partition plate to jointly enclose the heating cavity, and arranging the evaporation member in the heating cavity, the generated steam can be heat-diffused from bottom to top, the diffusion rule of the steam is met, the steam can form sufficient contact with the upper battery monomers, the contact area of the battery monomers and the steam is increased, and the heating process of the battery monomers is accelerated, so that the heating efficiency is higher. Meanwhile, the diffusion process has better uniformity, the steam can uniformly heat the plurality of battery monomers at the same time, the risk of uneven heating is reduced, and the drying effect is better.

[0019] According to an aspect of the embodiments of the present application, the partition plate comprises a plurality of sub-partition plates, the plurality of sub-partition plates extend in the first direction and are arranged in a spaced manner in the second direction, and the partition plate bears the battery monomers through the plurality of sub-partition plates. By arranging the partition plate in a spaced manner of the plurality of sub-partition plates, the plurality of battery monomers are borne by the plurality of sub-partition plates at the same time, and the steam is allowed to pass through the gap between the adjacent sub-partition plates, so that the steam can penetrate between the adjacent battery monomers and form a larger contact area, the flow capacity of the steam is increased, the heating process between the battery monomers is accelerated, and the circulation process of the steam is accelerated.

[0020] According to an aspect of the embodiments of the present application, the clamp further comprises a fixing member, the fixing member is arranged between the adjacent partition plates, and the two ends of the fixing member in the height direction abut against the adjacent two partition plates. By arranging the fixing member between the adjacent two partition plates of the clamp, effective support is formed between the adjacent two partition plates, so that the structural strength of the whole clamp is improved, the structural stability is better, and reliable guarantee is provided for bearing the plurality of battery monomers at the same time.

[0021] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0022] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0023] FIG. 1 is a structural schematic view of a battery drying device according to an embodiment of the present application;

[0024] FIG. 2 is a partial enlarged schematic view of A in FIG. 1;

[0025] Fig. 3 is a schematic view of drying a battery cell according to an embodiment of the present application;

[0026] Fig. 4 is a schematic view of drying a battery cell according to another embodiment of the present application;

[0027] Fig. 5 is a schematic view of drying a battery cell according to yet another embodiment of the present application;

[0028] Fig. 6 is a schematic view of drying a battery cell according to still another embodiment of the present application;

[0029] Fig. 7 is an enlarged view of B in Fig. 5.

[0030] Reference Signs: 100 - battery drying device; 10 - frame; 11 - accommodating cavity; 12 - main body portion; 13 - heat retaining portion; 14 - spacing portion; 20 - evaporation member; 30 - condensation member; 40 - driving member; 200 - clamp; 300 - battery cell; 50 - separator; 51 - sub-separator; 60 - support member; 61 - first portion; 62 - second portion; 70 - fixing member; 80 - vacuum assembly; 81 - suction member; 82 - suction line; 90 - air guide member; X - first direction; Y - second direction; Z - height direction.

[0031] In the drawings, the same components have the same reference numerals, except where otherwise dictated. The accompanying drawings are not drawn to scale. DETAILED DESCRIPTION

[0032] To make the objectives, technical schemes and advantages of the embodiments of the present application clearer, the technical schemes in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] 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 this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," "having" and "with" in this specification and in the claims, and the like, are used inclusively, not exclusively.

[0034] In the description of the embodiments of the present application, the technical terms "first", "second", and the like 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 the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0035] 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 one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all referring to a common embodiment, or an embodiment that is independent of other embodiments. One of ordinary skill in the art will readily recognize from the disclosure herein the possibility of combining features of different embodiments.

[0036] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the terms“mounting”,“connection”,“connecting”,“fixed”, and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] In the description of the embodiments of the present application, the term“a plurality of” refers to two or more (including two), and similarly, the term“a plurality of groups” refers to two or more groups (including two groups), and the term“a plurality of pieces” refers to two or more pieces (including two pieces).

[0038] In the description of the embodiments of the present 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 present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting the embodiments of the present application.

[0039] At present, from the development of market situation, the application of power battery is more and more extensive. The power battery is not only applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of power battery, the demand of its market is also increasing.

[0040] In the process of producing power battery, the battery monomer needs to be dried, so as to enter the next production node. Drying the battery monomer improves the safety performance of the battery monomer, makes the product have higher reliability, and improves the product yield.

[0041] Generally, the battery monomer on the feeding station needs to be taken down and placed in the clamp for fixation, and then transferred to the vacuum drying furnace for heating and drying. After the drying time is reached, the clamp and the battery monomer inside the vacuum drying furnace are taken out, and the battery monomer on the clamp is transferred to the discharging station, so as to transport the dried battery monomer to the next node position, and complete the drying process of the battery monomer.

[0042] The vacuum drying furnace plays an important role in the drying process of the battery monomer, and provides heat to the battery monomer to complete the drying process. In the related art, a traditional air conveying heating is usually used, and the heating mode is single, for example, a heating element is arranged on the inner wall surface of the drying furnace to form an air conveying furnace with wall heating, so that the heat generated by the heating element is gradually transmitted to the plurality of battery monomers inside to complete the heating and drying process.

[0043] However, the heating and drying method in the related art has a slow heating speed for the battery monomers inside, which leads to low drying efficiency and reduces the preparation efficiency of the battery. In addition, the traditional air conveying heating does not have good uniformity, and the heat distribution is uneven, which leads to poor drying effect of part of the battery monomers, and the heat generated in the drying furnace is not conducive to recycling, which increases the energy utilization cost and is not conducive to the overall cost reduction and efficiency improvement.

[0044] Based on the above considerations, in order to solve the problems of slow heating speed and low drying efficiency in the drying furnace, a battery drying device and a battery production system are provided in the present application. The battery drying device comprises a frame, a vacuum assembly and an evaporation element. The frame has a containing cavity for containing the battery monomer. The vacuum assembly comprises a suction element and a suction pipeline. The suction element is communicated with the opening of the battery monomer through the suction pipeline, and is used for absorbing the internal air of the battery monomer to form a vacuum inside the battery monomer. The inside of the vacuum assembly is airtight from the containing cavity. The evaporation element is arranged in the containing cavity, and is used for generating steam which can contact with the shell of the battery monomer to dry the inside of the battery monomer.

[0045] By placing the battery monomer in the accommodating cavity of the frame and setting the evaporation piece in the accommodating cavity, the battery monomer in the accommodating cavity is heated and dried by the steam generated by the evaporation piece. At this time, the vacuum assembly can ensure that the inside of the battery monomer is in a vacuum state, prevent external steam from entering the inside of the battery monomer, and the generated steam can exchange heat with the inside of the battery monomer through the shell of the battery monomer to complete the drying of the inside of the battery monomer. The rapid diffusion of the steam in the accommodating cavity can faster complete the heating and drying process of the battery monomer, so that the inside of the accommodating cavity can be quickly heated, the drying rate of the battery monomer is accelerated, the overall heating efficiency is improved, and the production efficiency of the battery is improved. It is beneficial to speed up the preparation process of the battery. At the same time, the battery monomer in the accommodating cavity is heated and dried by the steam. Due to the diffusion characteristics of the steam, the steam can uniformly heat the battery monomer at different positions, improve the uniformity of the drying of the battery monomer, and reduce the risk of uneven heating of the battery monomer. Therefore, it has better heating and drying effect and improves the heating and drying process.

[0046] The drying device described in the embodiments of the present application is not only limited to the battery field described above, but for the sake of brevity, the following embodiments are described with power batteries as examples.

[0047] Please refer to FIGS. 1-3, according to the embodiments of the present application, a battery drying device 100 is provided, which comprises a frame 10, a vacuum assembly 80 and an evaporation piece 20. The frame 10 has an accommodating cavity 11 for accommodating a battery monomer 300. The vacuum assembly 80 comprises a suction piece 81 and a suction pipeline 82. The suction piece 81 is communicated with the opening of the battery monomer 300 through the suction pipeline 82, and is used for absorbing the internal air of the battery monomer 300 to form a vacuum inside the battery monomer 300. The inside of the vacuum assembly 80 is airtight from the accommodating cavity 11. The evaporation piece 20 is arranged in the accommodating cavity 11, and is used for generating steam which can contact with the shell of the battery monomer 300 to dry the inside of the battery monomer 300.

[0048] Optionally, the steam generated by the evaporation piece 20 can be water vapor, that is, liquid water needs to be introduced into the evaporation piece 20, and the evaporation piece 20 evaporates the liquid water into water vapor to heat the battery monomer 300. Of course, other different media can also be used in the evaporation piece 20, which can form steam to heat and dry the battery monomer 300.

[0049] Optionally, the suction piece 81 can be a vacuumizing device, which can vacuumize the inside of the battery monomer 300 through the suction pipeline 82, so that the inside of the shell of the battery monomer 300 is always in a vacuum environment during the drying process. The vacuum assembly 80 and the accommodating cavity 11 of the frame 10 are airtight and form two gas environments, which do not interfere with each other.

[0050] In this way, when the evaporation piece 20 generates steam to dry the battery monomer 300, since the inside of the battery monomer 300 always maintains a vacuum environment, the steam cannot enter the inside of the battery monomer 300 to cause influence, but is in contact with the shell of the battery monomer 300 to exchange heat, so that the inside of the battery monomer 300 forms a temperature rise, thereby performing a drying process on the inside of the battery monomer 300.

[0051] Optionally, the frame 10 comprises a main body part 12 and a heat preservation part 13, the main body part 12 has an opening, and the heat preservation part 13 is movably connected to the main body part 12 and is used to cover the opening to form the containing cavity 11.

[0052] The containing cavity 11 provided in the embodiment is a closed containing cavity 11, which can close the opening of the main body part 12 by using the heat preservation part 13, so as to perform heat preservation treatment on the inside of the containing cavity 11, thereby reducing the loss of internal steam. The heat preservation part 13 can move relative to the main body part 12, and the staff can adjust the size of the opening by adjusting the positional relationship of the heat preservation part 13 according to the actual heat preservation demand.

[0053] Optionally, the frame 10 has a plurality of containing cavities 11, and the frame 10 further comprises a spacing part 14, and two adjacent containing cavities 11 are spaced apart in the height direction Z of the frame 10 by the spacing part 14, and the spacing part 14 can adopt a partition plate 50 structure.

[0054] The plurality of containing cavities 11 can simultaneously contain the battery monomers 300 and perform drying operation on the battery monomers 300 in the containing cavities 11 respectively, thereby improving the drying capacity of the whole device. Of course, according to the actual space demand, only a single-layer containing cavity 11 can be arranged, the drying range thereof is controlled by adjusting the length and width dimensions of the containing cavity 11, the number of layers of the containing cavities 11 can be flexibly determined according to the actual drying demand, and four layers of containing cavities 11 are taken as an example for illustration in the figure.

[0055] Optionally, the evaporation piece 20 can be an evaporator structure, the evaporation piece 20 can convert liquid water into steam, and the evaporation piece 20 is arranged in the containing cavity 11, which can be located at the bottom of the containing cavity 11, so that the battery monomers 300 in the containing cavity 11 can be dried by using the steam heating mode. At the same time, the evaporation piece 20 can directly take power by using an aviation plug, thereby avoiding the risk of vacuum discharge.

[0056] Since the steam can gradually diffuse from bottom to top, arranging the evaporation piece 20 at the bottom of the containing cavity 11 is beneficial to the diffusion law of the steam, so that the battery monomers 300 in the containing cavity 11 can be uniformly heated from bottom to top, thereby having better drying effect. At the same time, the setting of the heating film is cancelled, the number of heating pieces is reduced, and the cost of structural pieces is reduced.

[0057] Considering that the shell of the battery monomer 300 is usually made of aluminum shell material and has good waterproof performance, only the heat of the steam in the containing cavity 11 is used to dry the inside of the battery monomer 300. Even if the steam is liquefied into water droplets on the surface of the shell of the battery monomer 300, it will not affect the drying process of the heat to the inside of the shell of the battery monomer 300.

[0058] The battery drying device 100 provided by the embodiment of the present application places the battery monomer 300 in the containing cavity 11 of the frame 10 and sets the evaporation piece 20 in the containing cavity 11, uses the steam generated by the evaporation piece 20 to heat and dry the battery monomer 300 in the containing cavity 11, and the vacuum assembly 80 at this time can ensure that the inside of the battery monomer 300 is in a vacuum state, prevent external steam from entering the inside of the battery monomer 300, the generated steam can exchange heat with the inside of the battery monomer 300 through the shell of the battery monomer 300, complete the drying of the inside of the battery monomer 300, the rapid diffusion of the steam in the containing cavity 11 can faster complete the heating and drying process of the battery monomer 300, so that the inside of the containing cavity 11 can be quickly heated, the drying rate of the battery monomer 300 is accelerated, the overall heating efficiency is improved, and the production efficiency of the battery is improved, which is beneficial to speed up the preparation process of the battery. At the same time, the battery monomer 300 in the containing cavity 11 is heated and dried by using steam. Due to the diffusion characteristics of the steam, the steam can uniformly heat the battery monomer 300 at different positions, improve the uniformity of the drying of the battery monomer 300, reduce the risk of uneven heating of the battery monomer 300, thereby having better heating and drying effect and improving the heating and drying process.

[0059] Optionally, the battery drying device 100 can be a new type of air furnace. Compared with the traditional large vacuum drying furnace, the heating device 100 in the embodiment is reduced in size, greatly reduces the equipment floor area, and improves the space utilization rate.

[0060] As an optional embodiment, referring to FIG. 4, the drying device 100 includes a condensing piece 30, one end of the condensing piece 30 is connected with the containing cavity 11 and the other end is connected with the evaporation piece 20, and the condensing piece 30 can convert the steam into liquid.

[0061] Optionally, the condensing piece 30 can adopt a condenser structure. The main function of the condensing piece 30 is to convert the steam in the containing cavity 11 into liquid, so as to recycle the steam in the containing cavity 11. For example, the steam can be water vapor, and the corresponding liquid is liquid water.

[0062] Specifically, the evaporation piece 20 evaporates the liquid into steam in the containing cavity 11, the steam dries the battery monomer 300 in the containing cavity 11, the steam flows out of the containing cavity 11 after heating the battery monomer 300, then enters the set condensing piece 30, the steam recovers to the liquid state after condensing and releasing heat, and then continues to evaporate into steam in the evaporation piece 20, forming a circulation process, and the liquid is continuously recycled.

[0063] The battery drying device 100 provided in the embodiment of the application is provided with the condensing piece 30 connected with the evaporation piece 20 in the drying device 100, the condensing piece 30 can condense the steam into liquid by using the characteristic that the condensing piece 30 can condense the steam into liquid, the condensing piece 30 can convert the steam in the containing cavity 11 into liquid and return to the evaporation piece 20, thereby realizing the recycling of the intermediate medium, completing the overall waste heat recovery, reducing the energy utilization cost and energy loss, saving energy, and achieving the purpose of reducing cost and increasing efficiency.

[0064] As an optional embodiment, referring to FIG. 5, the drying device 100 comprises a driving piece 40, one end of the driving piece 40 is connected with the containing cavity 11 and the other end is connected with the condensing piece 30, and the driving piece 40 can drive the steam to flow.

[0065] Optionally, the driving piece 40 can adopt a fan structure, the driving piece 40 is arranged at the outlet of the containing cavity 11, can provide power for the steam flowing out of the containing cavity 11, so that the steam can enter the condensing piece 30 to complete the condensing process more quickly, thereby accelerating the circulation process of the liquid.

[0066] The battery drying device 100 provided in the embodiment of the application is provided with the driving piece 40 in the drying device 100, and the driving ability of the driving piece 40 is used to realize the driving of the steam, thereby providing power for the flow of the steam, facilitating the circulation of the intermediate medium in the system, accelerating the circulation process of the medium, improving the generation rate of the steam, and then accelerating the temperature rise of the battery monomer 300 in the containing cavity 11, and improving the drying efficiency of the battery monomer 300.

[0067] As an optional embodiment, referring to FIG. 1, the frame 10 comprises a main body part 12 and a heat preservation part 13, the main body part 12 has an opening, and the heat preservation part 13 is movably connected with the main body part 12 and used for covering the opening to form the containing cavity 11.

[0068] Optionally, the heat preservation part 13 can be a flexible heat preservation door made of heat preservation material, and the heat preservation part 13 is movably connected with the main body part 12, and a worker can adjust the positional relationship between the heat preservation part 13 and the main body part 12 according to the sealing requirement of the containing cavity 11, thereby adjusting the opening range of the main body part 12 to meet different internal drying requirements.

[0069] Before the drying operation, ensure that the heat preservation part 13 is in an open state, place the clamp 200 and the battery monomer 300 in the containing cavity 11 through the opening of the main body part 12, and then, the heat preservation part 13 can be adjusted until the opening of the main body part 12 is covered. During the drying process in the containing cavity 11, the heat preservation part 13 can prevent steam from being exposed from the opening, and at the same time, the heat preservation part 13 can prevent heat from being lost in the containing cavity 11, so that the heat generated by the steam can better heat the battery monomer 300 inside, and better drying effect is achieved.

[0070] The embodiment of the application provides a battery drying device 100, by arranging the heat preservation part 13 at the opening of the main body part 12 of the frame 10, using the characteristic that the heat preservation part 13 can move relative to the main body part 12, the opening of the main body part 12 is closed, so that the containing cavity 11 forms a closed cavity, which is beneficial to the diffusion and heating of steam in the closed containing cavity 11, reduces the loss of temperature, and makes the steam better heat the battery monomer 300 in the containing cavity 11, further improves the heating rate of the battery monomer 300, and improves the heating and drying effect of the battery monomer 300.

[0071] As an optional embodiment, referring to FIG. 1, the frame 10 has a plurality of containing cavities 11, and the frame 10 further comprises a spacing part 14. Adjacent two containing cavities 11 are arranged at intervals in the height direction Z of the frame 10 through the spacing part 14.

[0072] In order to ensure the drying effect of the containing cavity 11, the plurality of containing cavities 11 in the frame 10 are independently arranged, and are separated from each other through the intermediate spacing part 14, that is, the evaporation piece 20 can be arranged in each containing cavity 11, and each evaporation piece 20 can independently provide steam for the containing cavity 11, so as to independently dry the battery monomer 300 in each containing cavity 11.

[0073] Optionally, the spacing part 14 has different bearing capacities, and different numbers of battery monomers 300 can be placed in different containing cavities 11 according to different spacing parts 14, so that each containing cavity 11 has different drying capacity. The evaporation pieces 20 in the plurality of containing cavities 11 can work simultaneously to generate steam, meeting the synchronous drying demand of the plurality of containing cavities 11 for the battery monomer 300, and the plurality of containing cavities 11 place more numbers of battery monomers 300, thereby having better drying capacity.

[0074] The battery drying device 100 provided by the embodiment of the present application divides the frame 10 into multiple accommodation cavities 11 by using the spacing of the spacing part 14, each accommodation cavity 11 can independently perform the heating and drying operation on the battery monomer 300, which facilitates to increase the drying quantity of the battery monomer 300, improves the drying capacity of the whole drying device 100, and further improves the heating efficiency of the multiple battery monomers 300, which is beneficial to simultaneously dry a large number of battery monomers 300 and accelerates the heating and drying process.

[0075] As an optional embodiment, referring to FIG. 6, the drying device 100 comprises an air guide part 90, which is connected with the frame 10 and communicates with the accommodation cavity 11, and is used to introduce the gas outside the accommodation cavity 11 into the accommodation cavity 11 to discharge the steam.

[0076] Considering that the remaining steam may accumulate in the accommodation cavity 11 after the drying of the battery monomer 300 is completed by using the steam, the air guide part 90 communicating with the accommodation cavity 11 is arranged in the embodiment, which can provide the air flow to the accommodation cavity 11, so as to provide the driving force for the accumulated steam in the accommodation cavity 11 to be discharged in time. Optionally, the air guide part 90 can be a fan device, and the specific type of the air guide part 90 is not specially limited in the present application, which can only discharge the internal steam.

[0077] The battery drying device 100 provided by the embodiment of the present application can timely discharge the steam accumulated in the accommodation cavity 11 by using the air guide part 90 communicating with the accommodation cavity 11 of the frame 10 after the drying of the battery monomer 300 is completed, which reduces the subsequent influence of excessive steam on the battery monomer 300, ensures the safety performance of the battery monomer 300 while realizing the drying.

[0078] According to the embodiment of the present application, a battery production system is provided, which comprises the battery drying device 100, the clamp 200 and the transfer mechanism as described above, the clamp 200 is used to place the battery monomer 300, and the transfer mechanism is used to place the clamp 200 into the accommodation cavity 11.

[0079] Optionally, the clamp 200 comprises multiple partitions 50 and a support 60 located at the lower side of the partition 50, the multiple partitions 50 are arranged at intervals in the height direction Z of the clamp 200, the partition 50 is used to support the battery monomer 300, the multiple battery monomers 300 can be inserted into the partition 50, and the multiple partitions 50 can accommodate more battery monomers 300 in the height direction Z. Of course, according to the number of the dried battery monomers 300, a single layer of partition 50 can be arranged on the support 60, and the battery monomer 300 can be inserted into the partition 50 to form the support.

[0080] When the battery monomer 300 needs to be dried, the clamp 200 and the battery monomer 300 can be transported and placed in the accommodating cavity 11 of the drying device 100 by the transfer mechanism, and the battery monomer 300 is provided with steam by the evaporation piece 20 located at the accommodating cavity 11 in the drying device 100, so as to complete the steam heating drying process.

[0081] The embodiment of the application provides a battery production system, by placing the battery monomer 300 in the accommodating cavity 11 of the frame 10, and setting the evaporation piece 20 in the accommodating cavity 11, the battery monomer 300 in the accommodating cavity 11 is heated and dried by the steam generated by the evaporation piece 20, the rapid diffusion of the steam in the accommodating cavity 11 can faster complete the heating and drying process of the battery monomer 300, so that the inside of the accommodating cavity 11 can be quickly heated, the drying rate of the battery monomer 300 is accelerated, the overall heating efficiency is improved, and the production efficiency of the battery is improved, which is beneficial to accelerate the preparation process of the battery. At the same time, the battery monomer 300 in the accommodating cavity 11 is heated and dried by the steam, due to the diffusion characteristics of the steam, the steam can uniformly heat the battery monomer 300 at different positions, the uniformity of the drying of the battery monomer 300 is improved, the risk of uneven heating of the battery monomer 300 is reduced, so that the heating and drying effect is better, and the heating and drying process is improved.

[0082] Optionally, the battery drying device 100 can be a new type of air furnace, the clamp 200 is a structural member for fixing the battery monomer 300, and the transfer mechanism can be a fork structure for transporting the clamp 200 and the battery monomer 300, so as to cancel the design of the clamp 200 trolley, simplify the complex mechanism design of the stacker, use the fork to transport the battery monomer 300, reduce the cost, and improve the production efficiency.

[0083] As an optional embodiment, referring to FIG. 1 and FIG. 2, the clamp 200 comprises a plurality of partitions 50 and a support 60 located at the lower side of the partition 50, and the plurality of partitions 50 are arranged at intervals in the height direction Z of the clamp 200, and the partition 50 is used for supporting the battery monomer 300.

[0084] In the structure of the clamp 200, the plurality of partitions 50 are mainly used for bearing the battery monomer 300, and the support 60 at the bottom of the partition 50 is used for supporting the plurality of partitions 50 and the battery monomer 300, thereby forming a stable support structure, and the number of battery monomers 300 borne on each layer of partition 50 can be adjusted as needed.

[0085] The battery production system provided in the embodiment of the present application can improve the number of battery monomers 300 carried by the clamp 200 by arranging multiple separators 50 in the clamp 200 and using the separators 50 to carry the battery monomers 300, which is beneficial to simultaneously complete the heating and drying process for multiple battery monomers 300, improves the drying capacity of the drying device 100 as a whole, and thus has higher heating efficiency.

[0086] As an optional embodiment, referring to FIG. 2, the support 60 includes a first part 61 and a second part 62, the first part 61 and the second part 62 are arranged in the first direction X and extend in the second direction Y, the separators 50 and the first part 61 and the second part 62 form a heating cavity, and the evaporation member 20 is arranged in the heating cavity.

[0087] In the embodiment, the support 60 is arranged in a split structure of the first part 61 and the second part 62, the first part 61 and the second part 62 are arranged in the first direction X, and the first part 61 and the second part 62 and the separators 50 above them form a heating cavity together, which provides space for arranging the evaporation member 20.

[0088] The evaporation member 20 is arranged in the heating cavity, and since the heating cavity is located at the bottom of the containing cavity 11, the steam generated by the evaporation member 20 can gradually pass through the battery monomers 300 on each layer of separators 50 from bottom to top, can comprehensively heat all the battery monomers 300, and has better drying effect.

[0089] The battery production system provided in the embodiment of the present application can form a heating cavity by using the first part 61 and the second part 62 of the support 60 and the separators 50, and arrange the evaporation member 20 in the heating cavity, which is beneficial to the heat diffusion of the generated steam from bottom to top, meets the diffusion law of the steam, enables the steam to sufficiently contact the battery monomers 300 at the top, improves the contact area between the battery monomers 300 and the steam, and thus accelerates the heating process of the battery monomers 300, has higher heating efficiency, and has better drying effect.

[0090] As an optional embodiment, referring to FIG. 7, the separator 50 includes multiple sub-separators 51, the multiple sub-separators 51 extend in the first direction X and are arranged in the second direction Y, and the separator 50 carries the battery monomers 300 through the multiple sub-separators 51.

[0091] The plurality of sub-separators 51 are arranged at intervals, not only can the sub-separator 51 bear the battery monomer 300, but also the gap between the sub-separators 51 can pass the steam, so that the steam can pass between the multiple layers of separators 50, and the steam is inserted between the plurality of battery monomers 300, and has a larger contact area with the battery monomer 300, and has a better heating effect.

[0092] The embodiment of the application provides a battery production system, by arranging the separators 50 as a plurality of sub-separators 51 arranged at intervals, while bearing the plurality of battery monomers 300 by the plurality of sub-separators 51, the steam can pass through the gap between the adjacent sub-separators 51, so that the steam can be inserted between the adjacent battery monomers 300 and form a larger contact area, improve the flow capacity of the steam, speed up the heating process between the battery monomers 300, and facilitate the circulation process of the steam.

[0093] As an optional embodiment, referring to FIG. 2, the clamp 200 further comprises a fixing piece 70, the fixing piece 70 is arranged between adjacent separators 50, and both ends of the fixing piece 70 in the height direction Z abut against the adjacent two separators 50.

[0094] Considering the stability between the adjacent separators 50 after being stacked, the fixing piece 70 is arranged between the adjacent separators 50 in the embodiment, and the fixing piece 70 can be a block structure, the fixing piece 70 abuts between the separators 50 in the height direction Z, thereby supporting the adjacent two separators 50, and improving the stability of the structure.

[0095] The embodiment of the application provides a battery production system, by arranging the fixing piece 70 between the adjacent two separators 50 of the clamp 200, an effective support is formed between the adjacent two separators 50, thereby improving the structural strength of the whole clamp 200, having better structural stability, and providing reliable guarantee for bearing the plurality of battery monomers 300 at the same time.

[0096] The battery drying device 100 and the battery production system provided by the embodiments of the present application, the battery drying device 100 comprises a frame 10 and an evaporation piece 20, the frame 10 has a containing cavity 11, the containing cavity 11 is used for containing a battery monomer 300; the evaporation piece 20 is arranged in the containing cavity 11, the evaporation piece 20 is used for generating steam, the drying device 100 comprises a condensing piece 30, one end of the condensing piece 30 is connected with the outlet of the containing cavity 11 and the other end is connected with the evaporation piece 20, the condensing piece 30 can convert the steam into liquid, the drying device 100 comprises a driving piece 40, the driving piece 40 is connected to the side of the condensing piece 30 away from the evaporation piece 20, one end of the driving piece 40 is connected with the outlet of the containing cavity 11 and the other end is connected with the condensing piece 30, the driving piece 40 can drive the steam to flow, the frame 10 comprises a main body part 12 and a heat preservation part 13, the main body part 12 has an opening, the heat preservation part 13 is movably connected to the main body part 12 and is used for covering the opening to form the containing cavity 11, the frame 10 has a plurality of containing cavities 11, and the frame 10 further comprises a spacing part 14, and two adjacent containing cavities 11 are arranged at intervals in the height direction Z of the frame 10 through the spacing part 14.

[0097] The battery production system comprises the battery drying device 100, a clamp 200 and a transfer mechanism, the clamp 200 is used for placing the battery monomer 300; the transfer mechanism is used for placing the clamp 200 into the containing cavity 11, the clamp 200 comprises a plurality of partitions 50 and a supporting piece 60 located at the lower side of the partition 50, the plurality of partitions 50 are arranged at intervals in the height direction Z of the clamp 200, the partition 50 is used for supporting the battery monomer 300, the supporting piece 60 comprises a first part 61 and a second part 62, the first part 61 and the second part 62 are arranged at intervals in the first direction X and extend in the second direction Y, the partition 50 and the first part 61 and the second part 62 enclose a heating cavity, and the evaporation piece 20 is arranged in the heating cavity.

[0098] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery drying apparatus, wherein, The drying device comprises a frame having a receiving cavity for receiving a battery cell; a vacuum assembly comprising a suction member and a suction pipe, the suction member being in communication with an opening of the battery cell through the suction pipe, the suction member being used for absorbing internal air of the battery cell to form a vacuum inside the battery cell; an internal part of the vacuum assembly being airtight isolated from the receiving cavity; an evaporation member arranged in the receiving cavity, the evaporation member being used for generating steam which can be in contact with a shell of the battery cell to dry the inside of the battery cell. The drying device comprises a condensation member, one end of the condensation member being connected with the receiving cavity and the other end being connected with the evaporation member, the condensation member being capable of converting the steam into liquid. The drying device comprises a driving member, one end of the driving member being connected with the receiving cavity and the other end being connected with the condensation member, the driving member being capable of driving the steam to flow. The frame comprises a main body part having an opening and a heat preservation part being movably connected with the main body part and being used for covering the opening to form the receiving cavity.

2. The drying apparatus of claim 1, wherein, The frame has a plurality of the receiving cavities, the frame further comprising a spacing part, two adjacent receiving cavities being spaced apart in a height direction of the frame by the spacing part.

3. The drying apparatus of claim 2, wherein, The drying device comprises a wind guide member, the wind guide member being connected with the frame and being in communication with the receiving cavity, the wind guide member being used for introducing gas outside the receiving cavity into the receiving cavity to discharge the steam.

4. The drying apparatus of claim 1, wherein, The drying device comprises a frame having a receiving cavity for receiving a battery cell; a vacuum assembly comprising a suction member and a suction pipe, the suction member being in communication with an opening of the battery cell through the suction pipe, the suction member being used for absorbing internal air of the battery cell to form a vacuum inside the battery cell; an internal part of the vacuum assembly being airtight isolated from the receiving cavity; an evaporation member arranged in the receiving cavity, the evaporation member being used for generating steam which can be in contact with a shell of the battery cell to dry the inside of the battery cell.

5. The drying apparatus of claim 1, wherein, The drying device comprises a condensation member, one end of the condensation member being connected with the receiving cavity and the other end being connected with the evaporation member, the condensation member being capable of converting the steam into liquid.

6. The drying apparatus of claim 1, wherein, The drying device comprises a driving member, one end of the driving member being connected with the receiving cavity and the other end being connected with the condensation member, the driving member being capable of driving the steam to flow.

7. A battery production system, wherein, The frame comprises a main body part having an opening and a heat preservation part being movably connected with the main body part and being used for covering the opening to form the receiving cavity. The frame has a plurality of the receiving cavities, the frame further comprising a spacing part, two adjacent receiving cavities being spaced apart in a height direction of the frame by the spacing part. The drying device comprises a wind guide member, the wind guide member being connected with the frame and being in communication with the receiving cavity, the wind guide member being used for introducing gas outside the receiving cavity into the receiving cavity to discharge the steam. The drying device comprises a frame having a receiving cavity for receiving a battery cell; a vacuum assembly comprising a suction member and a suction pipe, the suction member being in communication with an opening of the battery cell through the suction pipe, the suction member being used for absorbing internal air of the battery cell to form a vacuum inside the battery cell; an internal part of the vacuum assembly being airtight isolated from the receiving cavity; an evaporation member arranged in the receiving cavity, the evaporation member being used for generating steam which can be in contact with a shell of the battery cell to dry the inside of the battery cell.

8. The production system of claim 7, wherein, The drying device comprises a condensation member, one end of the condensation member being connected with the receiving cavity and the other end being connected with the evaporation member, the condensation member being capable of converting the steam into liquid.

9. The production system of claim 8, wherein, The drying device comprises a driving member, one end of the driving member being connected with the receiving cavity and the other end being connected with the condensation member, the driving member being capable of driving the steam to flow.

10. The production system of claim 8, wherein, The frame comprises a main body part having an opening and a heat preservation part being movably connected with the main body part and being used for covering the opening to form the receiving cavity.

11. The production system of claim 8, wherein, The frame has a plurality of the receiving cavities, the frame further comprising a spacing part, two adjacent receiving cavities being spaced apart in a height direction of the frame by the spacing part. The drying device comprises a wind guide member, the wind guide member being connected with the frame and being in communication with the receiving cavity, the wind guide member being used for introducing gas outside the receiving cavity into the receiving cavity to discharge the steam.

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