Battery cell aluminum shell surface treatment equipment

Abstract

The utility model relates to the technical field of battery aluminium shell production, especially to a battery aluminium shell surface treatment equipment. Including the box, be provided with cathode in the box, the upper portion of box is provided with the pivot, the both ends of pivot are rotatably connected with the both sides of box, pivot is drivingly connected with motor, pivot is connected with the supporting arm of the supporting arm and has the supporting arm, the supporting arm is provided with the hollow part on the supporting arm, the both ends of the both sides of hollow part all are provided with the blocking piece of supporting arm, the detachable connection of the covering plate and a plurality of blocking pieces. The utility model can make that the battery aluminium shell is not easy to keep electrolyte.

Description

Technical Field

[0001] This utility model relates to the field of aluminum battery cell production technology, and in particular to a surface treatment device for aluminum battery cell shells. Background Technology

[0002] The aluminum casing of the battery cell is made by stamping and stretching aluminum sheets. Although it is made of aluminum, a dense oxide film naturally forms on its surface, providing some rust resistance. However, this naturally formed oxide film is relatively thin and tends to blacken after prolonged exposure to air. Therefore, anodizing is necessary to form a thicker oxide film on the surface, significantly improving its corrosion resistance and wear resistance. Because the aluminum casing of the battery cell is cylindrical with an opening at only one end, in existing technologies, a significant amount of electrolyte remains inside the casing after anodizing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a surface treatment device for aluminum shells of battery cells, addressing the aforementioned technical deficiencies.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a surface treatment device for aluminum shell of battery cells, including a box body, a cathode is arranged inside the box body, a rotating shaft is arranged on the upper part of the box body, the two ends of the rotating shaft are rotatably connected to the two sides of the box body, the rotating shaft is connected to a motor drive, the rotating shaft is connected to a support plate through a support arm, the support plate is provided with a hollow part, and the support plate is provided with blocking members at both ends of the hollow part, and a cover plate is detachably connected to several blocking members.

[0005] To further optimize this technical solution, the hollowed-out portion is made up of multiple parts.

[0006] To further optimize this technical solution, threaded holes are provided on the blocking components at both ends of the support plate, and through holes are provided on both sides of both ends of the cover plate. Bolts pass through the through holes and connect to the threaded holes.

[0007] To further optimize this technical solution, the cover plate is densely covered with flow holes.

[0008] To further optimize this technical solution, the support arms are two in number and are located at both ends of the tray.

[0009] Compared with the prior art, the present invention has the following advantages: a rotating shaft is rotatably connected to the upper part of the housing, and a support plate is connected to the rotating shaft through a support arm. The support plate is provided with a hollow part and a blocking part. After the cover plate is connected to the blocking part, it can prevent the aluminum shell of the battery cell from falling out between the support plate and the blocking part. The rotation of the rotating shaft can allow the aluminum shell of the battery cell to be immersed in the electrolyte or rise out of the electrolyte. Initially, the aluminum shell of the battery cell is placed upside down on the support plate. After the anodizing is completed, the rotating shaft is rotated so that the support plate is above the rotating shaft, and electrolyte is not easily retained inside the aluminum shell of the battery cell. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a surface treatment device for aluminum casings of battery cells.

[0011] Figure 2 for Figure 1 A magnified view of point I in the middle.

[0012] In the diagram: 1. Box body; 2. Rotating shaft; 21. Support arm; 22. Pallet; 221. Hollowed-out part; 222. Blocking component; 223. Threaded hole; 3. Cover plate. Detailed Implementation

[0013] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0014] Detailed implementation method: combined with Figure 1-2 As shown, a surface treatment device for aluminum casing of battery cells includes a housing 1 made of insulating and corrosion-resistant material. A cathode is disposed inside the housing 1. A rotating shaft 2 is disposed at the upper part of the housing 1. The electrolyte level inside the housing 1 is slightly lower than the height of the rotating shaft 2. The two ends of the rotating shaft 2 are rotatably connected to the two sides of the housing 1. The rotating shaft 2 is connected to a motor drive, which can drive the rotating shaft 2 to rotate. A support arm 21 connects the rotating shaft 2 to a support plate 22. The plane of the support plate 22 is parallel to the axis of the rotating shaft 2. The support plate 22 has a perforated portion 221. Blocking elements 222 are disposed at both ends of the perforated portion 221 on the support plate 22. The blocking elements 222 prevent significant movement of the aluminum casing of the battery cell. A cover plate 3 is detachably connected to several blocking elements 222. The support arm 21, support plate 22, and cover plate 3 are all conductors. When the aluminum shell of the battery cell is in the shape of a square tube, the blocking member 222 is provided with a right-angled notch near the vertical edge of the aluminum shell of the battery cell.

[0015] Preferably, there are multiple hollowed-out portions 221, so that multiple battery cell aluminum shells can be placed at the same time.

[0016] Specifically, threaded holes 223 are provided on the blocking members 222 at both ends of the support plate 22, and through holes are provided on both sides of both ends of the cover plate 3. After the bolt passes through the through holes, it connects with the threaded holes 223, thereby realizing the detachable connection between the cover plate 3 and several blocking members 222.

[0017] Furthermore, the cover plate 3 is densely covered with flow holes, through which electrolyte can pass.

[0018] Furthermore, there are two support arms 21, which are located at both ends of the tray 22 respectively, and the support arms 21 are perpendicular to the tray 22.

[0019] When using, combine Figure 1 As shown, initially, the tray 22 is positioned directly above or slightly above the rotating shaft 2 (on the side closest to the operator). Then, multiple aluminum battery cell shells are placed upside down on the tray 22, with the cutout 221 located within the opening of the aluminum battery cell shell. Next, the cover plate 3 is installed, and the motor is operated to rotate the rotating shaft 2 (clockwise when viewed from right to left). When the support arm 21 is horizontal, the electrolyte has begun to enter the aluminum battery cell shell. The rotating shaft 2 is then rotated further until the support arm 21 is positioned below the rotating shaft 2 and nearly vertical. At this point, the opening of the aluminum battery cell shell faces upward and is filled with electrolyte. The wire connecting the anode can then be brought into contact with the support arm 21 (or the wire can remain connected to the support arm 21 and have a switch installed) to anodize the aluminum battery cell shell. After anodizing is complete, the motor is operated to return the rotating shaft 2 to its initial position. At this point, the opening of the aluminum battery cell shell faces downward or slightly below, and the electrolyte has almost completely flowed out. The cover plate 3 can then be removed, and the aluminum battery cell shell can be taken off.

[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A surface treatment device for aluminum casing of battery cells, comprising a housing (1), wherein a cathode is disposed within the housing (1), characterized in that: The upper part of the box (1) is provided with a rotating shaft (2), the two ends of the rotating shaft (2) are rotatably connected to the two sides of the box (1), the rotating shaft (2) is connected to the motor drive, the rotating shaft (2) is connected to a support plate (22) through a support arm (21), the support plate (22) is provided with a hollow part (221), and the support plate (22) is provided with a blocking part (222) at both ends of the hollow part (221), and the cover plate (3) is detachably connected to several blocking parts (222).

2. The surface treatment equipment for aluminum casing of battery cells according to claim 1, characterized in that: The hollowed-out portion (221) is multiple.

3. The surface treatment equipment for aluminum casing of battery cells according to claim 1, characterized in that: The blocking parts (222) located at both ends of the tray (22) are provided with threaded holes (223), and the two sides of both ends of the cover plate (3) are provided with through holes. The bolts pass through the through holes and connect to the threaded holes (223).

4. The surface treatment equipment for aluminum casing of battery cells according to claim 1, characterized in that: The cover plate (3) is densely covered with flow holes.

5. A surface treatment device for aluminum casing of battery cells according to any one of claims 1-4, characterized in that: The support arms (21) are two in number and are located at both ends of the tray (22).

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