Battery cell surface rubberizing tool and method

Abstract

The invention discloses a battery cell surface rubberizing tool and method, the battery cell surface rubberizing tool comprises a storage table, a to-be-rubberized surface of a battery cell is placed on the storage table upwards, a plurality of limiting tables are installed on the storage table, the surface of each limiting table abuts against the outer surface of one side surface of the battery cell, the bottom end of a vertical adjusting column is installed on the storage table, and the bottom end of the vertical adjusting column is connected with the storage table. Horizontal adjusting plates are installed at the top ends of the vertical adjusting columns, one sides of the horizontal adjusting plates are in contact connection with one ends of the faces, to be pasted with the colloid, of the battery cells, the distance between the one sides of the horizontal adjusting plates and the other ends, opposite to the faces to be pasted with the colloid, of the battery cells is determined according to the designed width of the colloid, and each horizontal adjusting plate is connected with an adjusting rod. The adjusting rods are positioned on the surface of the battery cell with the adhesive colloid, and the distance between every two adjacent adjusting rods is determined according to the designed length of the colloid; the tool disclosed by the invention can adapt to battery cells with different sizes and colloids with different sizes, and can realize consistency of positions of the colloids on a plurality of battery cells.

Description

Technical Field

[0001] The invention belongs to the technical field of battery module processing, and specifically relates to a battery cell surface adhesive pasting tool and method. Background Art

[0002] In recent years, the manufacturing process of lithium batteries has gradually developed. The battery cell is the smallest unit of a lithium battery. Multiple battery cells are packaged together in the same outer shell frame to form a battery module, and multiple battery modules are connected as a whole to form a battery pack.

[0003] When multiple battery cells are stacked along their thickness direction to form a battery module, two adjacent battery cells can be fixed by adhesive bonding. On the one hand, the adhesive can keep the multiple battery cells relatively fixed, and on the other hand, the adhesive can also reserve a gap between two adjacent battery cells to reserve expansion space for the heating of the battery cells.

[0004] The processing technology of the battery module has requirements for the position of the colloid bonded to the battery cell. At the same time, when multiple battery cells form a battery module, the position of the colloid on the multiple battery cells should be consistent to ensure the consistency of the product. The existing battery cell gluing tooling is difficult to achieve the consistency of the colloid position on multiple battery cells, and the existing battery cell gluing tooling has a complex structure, is inconvenient to use and is difficult to be compatible with battery cells of different sizes. Summary of the invention

[0005] The object of the present invention is to provide a battery cell surface glue sticking tool and method to solve the problem of consistency of colloid positions on multiple battery cells and the difficulty of the tool being compatible with battery cells of different sizes.

[0006] To achieve the above objectives, the technical solution of the present invention is:

[0007] A battery cell glue pasting tool, the tool comprising a storage table, a battery cell with one side to be glued facing upward is placed on the storage table, a plurality of limit platforms are installed on the storage table, the surface of each limit platform is respectively against the outer surface of one side of the battery cell, the bottom end of the vertical adjustment column is installed on the storage table, the top end of the vertical adjustment column is installed with a horizontal adjustment plate, one side of the horizontal adjustment plate is in contact with and connected to one end of one side of the battery cell to be glued, the distance between one side of the horizontal adjustment plate and the other end of the side of the battery cell to be glued is determined according to the designed width of the colloid, each horizontal adjustment plate is connected to an adjustment rod, the adjustment rod is located on the surface of the battery cell with the glue pasted, and the distance between two adjacent adjustment rods is determined according to the designed length of the colloid.

[0008] Furthermore, a plurality of pin holes and a plurality of mounting holes are arranged on the storage platform, a pin shaft is arranged on the bottom surface of the plurality of limit platforms, the pin holes cooperate with the pin shaft to mount the plurality of limit platforms on the storage platform, and the bottom end of the vertical adjustment column is arranged in the mounting hole.

[0009] Furthermore, a plurality of bolt holes are arranged on the horizontal adjustment plate, a groove for accommodating bolts is arranged on the top of the vertical adjustment column, threads matching with the bolts are arranged on the side walls of the groove, and the horizontal adjustment plate and the vertical adjustment column are connected by bolts.

[0010] Furthermore, there are two vertical adjustment columns, each of which is connected to a horizontal adjustment plate, and a plurality of one-way holes are arranged at intervals on the side of each horizontal adjustment plate. Each horizontal adjustment plate is connected to an adjustment rod, and the top end of each adjustment rod is inserted into a one-way hole.

[0011] Furthermore, the adjustment rod is located on the surface of the battery cell on which the colloid is to be pasted.

[0012] Furthermore, the level adjustment plate is in contact with and connected to the end of the side of the battery cell to be pasted with the colloid.

[0013] Furthermore, the level adjustment plate is partially located on the surface of the side of the battery cell to be pasted with the colloid.

[0014] Furthermore, there are three limit platforms, the first limit platform is located on the outside of one of the side surfaces of the battery cell, the second limit platform is located on the outside of another side surface opposite to the one of the side surfaces, and the third limit platform is located on the outside of the side surface adjacent to the one of the side surfaces. The surface of the battery cell is against the surface of the limit platform, and the position of the battery cell on the storage table is limited by the three limit platforms.

[0015] A method for implementing glue application on the surface of a battery cell by using the battery cell glue application tool, the method comprising:

[0016] Install multiple limit platforms on the storage table, and place the battery cell on the storage table with the side to be pasted with colloid facing up, so that each limit platform is against the outer surface of one side of the battery cell;

[0017] The vertical adjustment column is installed on the storage table, and the horizontal adjustment plate is installed on the top of the vertical adjustment column. The side of the horizontal adjustment plate with a one-way hole is located at one end of the side of the battery cell to be pasted with the colloid. The distance between the end of the side of the horizontal adjustment plate with the one-way hole and the other end opposite to the side of the battery cell to be pasted with the colloid is determined according to the design width of the colloid. An adjustment rod is installed on each horizontal adjustment plate, and the distance between two adjacent adjustment rods is determined according to the design length of the colloid.

[0018] Put the colloid on the surface of the battery cell where the colloid is to be pasted, and paste the colloid on one side of the battery cell when the left and right sides of the colloid are against the sides of the two adjustment rods respectively and one of the long sides of the colloid is against the side of the horizontal adjustment plate with the one-way hole;

[0019] After completing the colloid pasting on one side of the battery cell, turn the battery cell over so that the other surface of the battery cell to be pasted with colloid faces upward, and determine whether to move the positions of multiple limit tables, vertical adjustment columns, horizontal adjustment plates and adjustment rods on the storage table based on the size of the side of the battery cell. When the multiple limit tables are still against the side of the battery cell and the positions of the horizontal adjustment plates and adjustment rods match the size of the colloid, there is no need to adjust the positions of the multiple limit tables, vertical adjustment columns, horizontal adjustment plates and adjustment rods on the storage table. Otherwise, they need to be adjusted, and the above colloid pasting steps are repeated until the gluing of the other sides of the battery cell is completed.

[0020] Furthermore, the installation method of the multiple limit platforms on the storage table is: inserting the bottom pin of the first limit platform into the pin hole on the storage table, placing the battery cell on the storage table with the side of the colloid to be pasted facing upward, so that one side of the battery cell is against the outer surface of the side of the first limit platform, and inserting the bottom pins of the second limit platform and the third limit platform into the other pin holes on the storage table respectively, so that the second limit platform and the third limit platform are against the outer surfaces of the other two side surfaces of the battery cell respectively.

[0021] The beneficial effects of the present invention are:

[0022] 1. The tooling of the present invention can adapt to batteries of different sizes

[0023] Firstly, the present invention limits the position of the battery cell on the storage table through multiple limit platforms. The limit platform is connected to the storage table through a pin shaft and a pin hole. Multiple pin holes are arranged on the storage table, which can conveniently change the position of the limit platform on the storage table. By changing the installation position of the first limit platform and the second limit platform on the storage table, the distance between the first limit platform and the second limit platform can be changed. The distance between the first limit platform and the second limit platform is adjustable, so that the tooling of the present invention can adapt to battery cells of different lengths. The installation position of the third limit platform on the storage table is adjustable, so that the tooling of the present invention can adapt to battery cells of different widths.

[0024] Secondly, the horizontal adjustment plate is installed on the top of the vertical adjustment column. At the same time, the bottom surface of the horizontal adjustment plate is in contact with and connected to the side of the battery cell to be pasted with the colloid, and one side of the colloid is limited by the horizontal adjustment plate. In practical applications, a variety of vertical adjustment columns of different lengths can be prepared, so that the tooling of the present invention can adapt to battery cells of different heights.

[0025] 2. The tooling of the present invention can adapt to colloids of different sizes

[0026] First, a plurality of single holes for installing adjusting rods are arranged at intervals on the side of the horizontal adjustment plate. The adjusting rods are connected to different single holes, and the distance between the two adjusting rods can be adjusted. The left and right sides of the colloid are respectively against the sides of the two adjusting rods, and the distance between the two adjusting rods is adjustable, so that the tooling of the present invention can adapt to colloids of different lengths.

[0027] Secondly, a plurality of mounting holes for mounting vertical adjustment columns are arranged on the storage platform. The vertical adjustment columns are located on the periphery of the battery cell. By moving the position of the vertical adjustment columns on the storage platform, the position of the horizontal adjustment plate on the side of the battery cell to be pasted with the colloid can be changed. A plurality of bolt holes are arranged on the horizontal adjustment plate. The bolt holes at different positions are connected to the vertical adjustment columns, and the position of the horizontal adjustment plate on the side of the battery cell to be pasted with the colloid can also be changed. One edge of the colloid abuts against the side of the two horizontal adjustment plates with one-way holes. The position of the horizontal adjustment plate on the side of the colloid to be pasted is adjustable, so that the tooling of the present invention can adapt to colloids of different widths.

[0028] 3. The present invention can achieve consistency in the position of colloids on multiple cells

[0029] In practical applications, the colloid is rectangular in shape as a whole, and the colloid for the battery cell is sticky foam. When the foam is placed on the surface of the side of the battery cell where the colloid is to be pasted, the left and right sides of the foam are respectively against the sides of the two adjusting rods, and one of the long sides of the foam is against the sides of the two horizontal adjustment plates with one-way holes. The position of the colloid is limited by the adjusting rod and the two horizontal adjustment plates. The positions of the two adjusting rods and the horizontal adjustment plates are designed according to the size of the side of the battery cell where the colloid is to be pasted, so as to achieve consistency in the positions of the colloids on multiple battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an overall schematic diagram of the tooling of the present invention.

[0031] Figure 2 It is a schematic diagram of the tooling limit platform of the present invention being installed on the storage platform.

[0032] Figure 3 This is a schematic diagram of the tooling of the present invention after installation.

[0033] Figure 4 This is a schematic diagram of the battery cell of the present invention being installed on a tooling.

[0034] In the figure: a storage platform 1; a pin hole 1.1; a mounting hole 1.2; a battery cell 2; a first limit platform 3; a second limit platform 4; a third limit platform 5; a vertical adjustment column 6; a horizontal adjustment plate 7; a bolt hole 7.1; a bolt 8; an adjustment rod 9; and a one-way hole 10. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the invention clearer, the present invention is further described below with reference to the accompanying drawings.

[0036] like Figure 1 , Figure 2 and Figure 3As shown, the battery cell gluing tooling includes a storage platform 1, and the battery cell 2 is placed on the storage platform 1. A plurality of pin holes 1.1 and a plurality of mounting holes 1.2 are provided on the storage platform 1, and the pin holes 1.1 are used to install the limit platform. In a specific embodiment, three limit platforms are provided, namely the first limit platform 3, the second limit platform 4, and the third limit platform 5. Pins are provided at the bottom of the three limit platforms, and the pins are inserted into the pin holes 1.1 to install the limit platforms on the storage platform 1. The first limit platform 3 and the second limit platform 4 are respectively located on the left and right sides of the storage platform 1, and the third limit platform 5 is located between the first limit platform 3 and the second limit platform 4.

[0037] The mounting hole 1.2 is used to mount the vertical adjustment column 6, and the bottom end of the vertical adjustment column 6 can be inserted into the mounting hole 1.2. The bottom end of the vertical adjustment column 6 is connected to the mounting hole 1.2, and the top end of the vertical adjustment column 6 is connected to the horizontal adjustment plate 7. A plurality of bolt holes 7.1 are arranged on the horizontal adjustment plate 7. A groove for accommodating bolts is also arranged on the top end of the vertical adjustment column 6. A thread matching with the bolt is arranged on the side wall of the groove. The horizontal adjustment plate 7 is connected to the vertical adjustment column 6 by a bolt 8. In a specific embodiment, two vertical adjustment columns 6 are arranged, and each vertical adjustment column 6 is connected to a horizontal adjustment plate 7. Each horizontal adjustment plate 7 is connected to an adjustment rod 9, and a plurality of one-way holes 10 are arranged at intervals on the side of each horizontal adjustment plate. One end of the adjustment rod 9 can be inserted into the one-way hole 10. In order to facilitate the connection between the adjustment rod 9 and the one-way hole 10, a tip slightly thinner than the adjustment rod 9 is arranged at one end of the adjustment rod 9, and the tip is inserted into the one-way hole 10.

[0038] In a specific embodiment, the battery cell 2 is rectangular, and the colloid needs to be disposed on four surfaces of the battery cell 2, namely, the left side, the right side, the front side, and the back side, except for the top and bottom surfaces. Figure 4 As shown, when the battery cell 2 is placed on the storage table 1, the first limit platform 3 is located on the outside of one of the side surfaces of the battery cell 2, the second limit platform 4 is located on the outside of the other side surface opposite to the one of the side surfaces, and the third limit platform 5 is located on the outside of the side surface adjacent to the one of the side surfaces. The surface of the battery cell 2 is against the surface of the limit platform, and the position of the battery cell 2 on the storage table is limited by the three limit platforms. The horizontal adjustment plate 7 is in contact with and connected to the end of the side of the battery cell 2 to be pasted with the colloid, or the horizontal adjustment plate 7 is partially located on the surface of the side of the battery cell 2 to be pasted with the colloid, and the two adjustment rods 9 are located on the surface of the side of the battery cell 2 to be pasted with the colloid.

[0039] The storage platform 1 is provided with a plurality of mounting holes 1.2 for mounting vertical adjustment columns 6, and the vertical adjustment columns 6 are located at the periphery of the battery cell 2. By moving the position of the vertical adjustment columns 6 on the storage platform 1, the position of the horizontal adjustment plate 7 on the side of the battery cell 2 to be pasted with the colloid can be changed. The horizontal adjustment plate 7 is provided with a plurality of bolt holes 7.1, and the bolt holes at different positions are connected to the vertical adjustment columns 6, and the position of the horizontal adjustment plate 7 on the side of the battery cell 2 to be pasted with the colloid can also be changed.

[0040] A plurality of one-way holes 10 for installing adjusting rods are arranged at intervals on the side surface of the horizontal adjustment plate 7 , and the adjusting rods 9 are connected to different one-way holes 10 , so that the distance between two adjusting rods 9 can be adjusted.

[0041] The present invention also discloses a method for applying glue to the surface of a battery cell according to the tooling, the method comprising the following steps:

[0042] Step 1: Insert the bottom pin of the first limit platform 3 into the pin hole 1.1 on the storage platform 1, place the battery cell 2 on the storage platform 1 with the side to be pasted with the colloid facing up, so that one side of the battery cell 2 is against the outer surface of the side of the first limit platform 3, and then insert the bottom pins of the second limit platform 4 and the third limit platform 5 into the other pin holes 1.1 on the storage platform 1, so that the second limit platform 4 and the third limit platform 5 are against the outer surfaces of the other two sides of the battery cell 2 respectively.

[0043] By changing the installation positions of the first limit platform 3 and the second limit platform 4 on the storage platform 1, the distance between the first limit platform 3 and the second limit platform 4 can be changed. The distance between the first limit platform 3 and the second limit platform 4 is adjustable, so that the tooling of the present invention can adapt to battery cells of different lengths. The installation position of the third limit platform 5 on the storage platform 1 is adjustable, so that the tooling of the present invention can adapt to battery cells of different widths.

[0044] Step 2: Install the vertical adjustment column 6 on the storage table 1, and install the horizontal adjustment plate 7 on the top of the vertical adjustment column 6 through the bolt 8. The side of the horizontal adjustment plate 7 with the one-way hole 10 is located at one end of the side of the battery cell 2 to be pasted with the colloid. The distance between the side of the horizontal adjustment plate 7 with the one-way hole 10 and the other end opposite to the side of the battery cell 2 to be pasted with the colloid is determined according to the designed width of the colloid. An adjustment rod 9 is installed on each horizontal adjustment plate 7, and the distance between two adjacent adjustment rods 9 is determined according to the designed length of the colloid.

[0045] In the present invention, according to the size of the colloid, the end of the horizontal adjustment plate 7 can be connected to the end of the side of the battery cell 2 to be pasted with the colloid, and the horizontal adjustment plate 7 can also be partially located on the surface of the side of the battery cell 2 to be pasted with the colloid, and the two adjustment rods 9 are located on the surface of the side of the battery cell 2 to be pasted with the colloid.

[0046] The horizontal adjustment plate 7 is installed on the top of the vertical adjustment column 6. At the same time, the bottom surface of the horizontal adjustment plate 7 is in contact with and connected to the side of the battery cell 2 to which the colloid is to be pasted, and one side of the colloid is limited by the horizontal adjustment plate. In practical applications, a variety of vertical adjustment columns 6 of different lengths can be prepared, so that the tooling of the present invention can adapt to battery cells of different heights.

[0047] Step 3: Place the colloid on the surface of the battery cell 2 to be pasted with colloid.

[0048] The left and right sides of the colloid are respectively against the sides of the two adjusting rods 9, and one of the long sides of the colloid is against the sides of the two horizontal adjustment plates 7 with one-way holes 10. Since the spacing between the two adjusting rods 9 is adjustable, the position of the end of the horizontal adjustment plate 7 on the side of the battery cell 2 to which the colloid is to be pasted is adjustable, so that the tooling of the present invention can adapt to colloids of different sizes.

[0049] In a specific embodiment, the colloid is in a rectangular shape as a whole, and the colloid for the battery cell is a sticky foam. When the foam is placed on the surface of the battery cell 2 on which the colloid is to be pasted, the foam is located between the left and right adjustment rods 9, and the left and right sides of the foam are respectively against the sides of the two adjustment rods 9, and one of the long sides of the foam is against the sides of the two horizontal adjustment plates 7 with one-way holes 10. The position of the colloid is limited by the adjustment rod 9 and the two horizontal adjustment plates 7. The positions of the two adjustment rods 9 and the horizontal adjustment plates 7 are designed according to the size of the side of the battery cell 2 on which the colloid is to be pasted, so that the consistency of the position of the colloid on multiple battery cells is achieved.

[0050] Except for the top and bottom surfaces, the other four sides of the rectangular battery cell 2 need to be provided with colloid. When placing the battery cell 2 on the storage table 1, the side of the battery cell 2 to be pasted with colloid should face upward. In the present invention, it is not necessary to paste the colloid on all four sides of a battery cell 2 before pasting the colloid on the next battery cell 2. Instead, when the colloid pasting on one side of the rectangular battery cell is completed, the battery cell 2 is turned over so that the side opposite to the side to which the colloid pasting is completed faces upward, and then the colloid is pasted on the upward side. When the colloid pasting on the two sides of the battery cell is completed, the battery cell 2 is removed from the storage rack 1, and the next battery cell 2 is placed on the storage rack 1, and the side of the next battery cell corresponding to the side to which the previous battery cell has been pasted faces upward, until the corresponding sides of the same batch of battery cells are pasted with glue, and then the remaining sides are pasted starting from the first battery cell, so as to avoid frequent replacement of the positions of the three limit blocks on the storage rack due to the different sizes of adjacent sides of the rectangular battery cells and avoid frequent replacement of the positions of the vertical adjustment column 6 and the horizontal adjustment plate 7. Alternatively, two toolings of the present invention are prepared, wherein one tooling is adapted to the size of two opposite sides of the battery cell, and the other tooling is adapted to the size of the other two opposite sides of the battery cell.

[0051] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A battery cell gluing tool, comprising a storage table (1) for placing a battery cell (2), characterized in that: The storage table (1) is detachably provided with one or more limit tables for locating the position of the battery cell (2) on the storage table (1) and a limit mechanism that can cooperate with a side surface of the battery cell (2) to be pasted with colloid and is used to locate the pasting position of the colloid.

2. The battery core gluing tool according to claim 1, characterized in that: The limiting mechanism comprises a plurality of vertical adjustment columns (6), the top end of each vertical adjustment column (6) being connected to a horizontal adjustment plate (7), a plurality of one-way holes (10) being arranged at intervals on the side of each horizontal adjustment plate, each horizontal adjustment plate (7) being connected to an adjustment rod (9), and one end of each adjustment rod (9) being inserted into a one-way hole (10).

3. The battery core gluing tool according to claim 2, characterized in that: The adjusting rod (9) is located on the surface of the battery core (2) on the side where the colloid is to be pasted.

4. The battery core gluing tooling according to claim 2, characterized in that: The horizontal adjustment plate (7) is in contact and connected with the side edge of the battery cell (2) on which the colloid is to be pasted.

5. The battery core gluing tool according to claim 2, characterized in that: The level adjustment plate (7) is partially located on the surface of the battery cell (2) on the side where the colloid is to be pasted.

6. The battery core gluing tool according to claim 2, characterized in that: One side of the horizontal adjustment plate (7) is in contact with the side edge of the battery cell (2) on which the colloid is to be pasted, the adjustment rod (9) is located on the surface of the battery cell (2) with the pasted colloid, and the distance between two adjacent adjustment rods (9) is equal to the designed length of the colloid.

7. The battery core gluing tool according to claim 1, characterized in that: There are three limiting platforms, wherein the first limiting platform (3) is located on the outside of one side surface of the battery cell (2), the second limiting platform (4) is located on the outside of another side surface opposite to one side surface of the battery cell (2), and the third limiting platform (5) is located on the outside of a side surface adjacent to one side surface of the battery cell (2). The surface of the battery cell (2) abuts against the surface of the limiting platform, and the position of the battery cell (2) on the storage platform is limited by the three limiting platforms.

8. The battery core gluing tool according to claim 1, characterized in that: A plurality of pin holes (1.1) are arranged on the storage platform (1), a pin shaft is arranged on the bottom surface of the limiting platform, and the pin holes (1.1) cooperate with the pin shaft to detachably mount the limiting platform on the storage platform (1).

9. The battery core gluing tool according to claim 2, characterized in that: A plurality of mounting holes (1.2) are arranged on the storage platform (1), and the bottom ends of the vertical adjustment columns (6) are arranged in the mounting holes (1.2).

10. A method for implementing battery cell gluing using the battery cell gluing tooling according to claims 1-9, characterized in that: The method comprises: placing the surface of the colloid to be pasted on one side of the battery cell (2) facing upward on a storage table (1), installing a limit table and a limit mechanism, pasting the colloid on the surface of the colloid to be pasted on one side of the battery cell (2), turning over the battery cell (2) so that the surface of the colloid to be pasted on the other side of the battery cell (2) faces upward, adjusting the positions of the limit table and the limit mechanism, and pasting the colloid on the surface of the colloid to be pasted on the other side of the battery cell (2).

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