Formation device for lithium battery cell

Abstract

The utility model provides a formation device for a lithium battery cell, which comprises a workbench and a support frame, the support frame is fixed at the rear end of the upper surface of the workbench, hydraulic cylinders are vertically fixed at the left end and the right end of the top of the support frame, a mounting plate is fixed at the bottoms of push rods at the power output ends of the two hydraulic cylinders, and an anode terminal is fixed at the bottom of the mounting plate. A stepping motor is fixed to the lower portion in the workbench, a containing disc is tightly attached to the upper surface of the workbench, fixing plates are embedded into the front end and the rear end of the upper surface of the containing disc, connecting pieces are fixed to the front end of the containing disc, the ends, close to the middle of the containing disc, of the connecting pieces are rotationally connected with containing cylinders through shaft rods, and cathode terminals are fixed to the lower portions in the containing cylinders. The lithium battery cell formation device can perform formation operation on a plurality of lithium battery cells at the same time, can quickly take and replace the lithium battery cells in the placement cylinder in the working process, can perform formation operation on the lithium battery cells without shutdown, and is relatively high in working efficiency and more convenient to use.

Description

A formation device for lithium battery cells Technical Field

[0001] This utility model relates to the field of lithium battery processing equipment technology, and in particular to a lithium battery cell formation device. Background Technology

[0002] A battery is a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium metal batteries are usually non-rechargeable and contain metallic lithium, while lithium-ion batteries do not contain metallic lithium and are rechargeable. In current technology, lithium battery formation is a process of charging the battery immediately after it is manufactured to activate it, similar to formatting a floppy disk. Only after formation can the battery begin normal charging and discharging. Currently, when forming lithium batteries in the same batch, it is not possible to form multiple lithium batteries simultaneously, which leads to a decrease in the formation efficiency of the same batch of lithium batteries, increases the labor intensity of workers, and makes them less convenient to use. Summary of the Invention

[0003] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a formation device for lithium battery cells.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A lithium battery cell formation apparatus includes a worktable and a support frame. The support frame is fixed to the rear end of the upper surface of the worktable. Hydraulic cylinders are vertically fixed to the left and right ends of the top of the support frame. Mounting plates are fixed to the bottom of the push rods at the power output ends of the two hydraulic cylinders. An anode terminal is fixed to the bottom of the mounting plate. A stepper motor is fixed to the lower interior of the worktable. A placement tray is attached to the upper surface of the worktable. Fixing plates are embedded in the front and rear ends of the upper surface of the placement tray. A connector is fixed to the front end of the placement tray. A placement cylinder is rotatably connected to the end of the connector near the center of the placement tray via a shaft. A cathode terminal is fixed to the lower interior of the placement cylinder. A collection box is fixed to the front end of the worktable.

[0006] Preferably, the stepper motor is rotatably connected to the placement disk via a drive shaft at the power output end, and the placement disk rotates 180° clockwise on the surface of the worktable each time.

[0007] Preferably, the bottom end of the placement tube is in close contact with the upper surface of the placement tray and the fixing plate, and the fixing plate is made of magnetic material and attracts the placement tube.

[0008] Preferably, both of the two placement cylinders have eight placement holes arranged in a circular, equidistant vertical opening on their inner and outer sides. The number of cathode terminals in the placement cylinders is the same as the number of anode terminals at the bottom of the mounting plate, and the cathode terminals are fixed at the bottom of the placement holes.

[0009] Preferably, the middle part of the placement hole in the rear placement cylinder on the upper surface of the placement plate and the middle part of the cathode terminal in the placement hole are on the same vertical horizontal plane as the anode terminal at the bottom of the mounting plate.

[0010] Preferably, the collection box is located directly below the outer side of the front placement cylinder on the placement tray, and the placement cylinder rotates 110° around the connector.

[0011] When a lithium battery cell is placed into the placement hole in the front placement cylinder of the placement tray, a stepper motor drives the placement tray to rotate 180°. This causes the placement cylinder containing the lithium battery cell to move to below the anode terminal, while the other placement cylinder moves to the front of the placement tray, allowing the operator to add lithium battery cells. At this time, a hydraulic cylinder pushes the mounting plate and the bottom anode terminal downwards to form the lithium battery cell. Subsequently, the stepper motor drives the placement tray to rotate 180° again, moving the placement cylinder containing the formed lithium battery cell to the front of the placement tray, while the placement cylinder containing the unformed lithium battery cell moves to the rear of the placement tray for further formation. The operator can then pull the frontmost placement cylinder forward and tilt it to tilt and collect the formed lithium battery cell, enabling quick removal and replacement of the lithium battery cell. The device can continuously perform lithium battery cell formation operations without stopping, resulting in high work efficiency and greater convenience. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 is a schematic cross-sectional view of the overall structure on the right side of this utility model;

[0014] Figure 3 is an exploded view of a partial structure of the placement plate in this utility model;

[0015] Figure 4 is a schematic diagram of the material cutting of a partial structure for placing the tray in this utility model.

[0016] Legend:

[0017] Workbench 1, support frame 101, hydraulic cylinder 102, mounting plate 103, anode terminal 104, stepper motor 2, placement tray 201, fixing plate 202, connector 203, placement cylinder 204, cathode terminal 205, collection box 3. Detailed Implementation

[0018] Example 1, referring to Figures 1-4, a lithium battery cell formation apparatus includes a workbench 1 and a support frame 101. The support frame 101 is fixed to the rear end of the upper surface of the workbench 1. Hydraulic cylinders 102 are vertically fixed to the left and right ends of the top of the support frame 101. Mounting plates 103 are fixed to the bottom of the push rods at the power output ends of the two hydraulic cylinders 102. Anode terminals 104 are fixed to the bottom of the mounting plates 103. A stepper motor 2 is fixed to the lower interior of the workbench 1. A placement tray 201 is attached to the upper surface of the workbench 1. Fixing plates 202 are embedded in the front and rear ends of the upper surface of the placement tray 201. A connector 203 is fixed to the front end of the placement tray 201. One end of the connector 203 near the middle of the placement tray 201 is rotatably connected to a placement cylinder 204 via a shaft. A cathode terminal 205 is fixed to the lower interior of the placement cylinder 204. A collection box 3 is fixed to the front end of the workbench 1.

[0019] The stepper motor 2 is rotatably connected to the placement disk 201 through the transmission shaft at the power output end. The placement disk 201 rotates 180° clockwise on the upper surface of the worktable 1 each time.

[0020] When the lithium battery cell is placed into the placement hole in the placement tube 204 at the front end of the upper surface of the placement tray 201, the stepper motor 2 drives the placement tray 201 to rotate 180°, so that the placement tube 204 containing the lithium battery cell moves to the bottom of the anode terminal 104 as the placement tray 201 rotates, while the other placement tube 204 moves to the front end of the placement tray 2 to allow the operator to add the lithium battery cell.

[0021] The two placement cylinders 204 have eight placement holes arranged in a circular shape with equidistant vertical openings on both the inner and outer sides. The number of cathode terminals 205 in the placement cylinder 204 is the same as the number of anode terminals 104 at the bottom of the mounting plate 103. The cathode terminals 205 are fixed at the bottom of the placement holes.

[0022] The middle part of the placement hole in the rear placement cylinder 204 on the upper surface of the placement plate 201 and the middle part of the cathode terminal 205 in the placement hole are on the same vertical horizontal plane as the anode terminal 104 at the bottom of the mounting plate 103.

[0023] Because the placement cylinder 204 has eight placement holes, when the lithium battery cell is placed in the placement hole, its bottom will be in close contact with the cathode terminal 205. At this time, when the hydraulic cylinder 102 pushes the mounting plate 103 and the bottom anode terminal 104 to move down, the multiple anode terminals 104 will be in close contact with the top of the lithium battery cell, realizing the simultaneous formation operation of multiple lithium battery cells, which has high working efficiency and is more convenient to use.

[0024] Example 2 differs from Example 1 in that, in this example, the bottom end of the placement tube 204 is in close contact with the upper surface of the placement plate 201 and the fixing plate 202, and the fixing plate 202 is made of magnetic material and attracts the placement tube 204.

[0025] The main function of the fixing plate 202 is to generate magnetic force to attract the placement cylinder 204, so as to prevent the placement cylinder 204 from jumping up and down on the upper surface of the placement plate 201 during the rotation of the placement plate 201.

[0026] The collection box 3 is located just below the outer side of the front placement cylinder 204 on the placement tray 201, and the placement cylinder 204 rotates 110° back and forth around the connector 203;

[0027] When the placed cylinder 204, after the formation is completed, is moved to the front end of the placed tray 201, the staff pulls the frontmost placed cylinder 204 forward and rotates and tilts it, so that the lithium battery cells in the placed cylinder 204 will slide into the collection box 3 due to gravity, and the lithium battery cells that have completed formation in the placed cylinder 204 can be collected quickly.

[0028] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A lithium battery cell formation apparatus, comprising a worktable (1) and a support frame (101), wherein the support frame (101) is fixed to the rear end of the upper surface of the worktable (1), characterized in that, Hydraulic cylinders (102) are vertically fixed at the left and right ends of the top of the support frame (101). The bottom of the push rods of the power output ends of the two hydraulic cylinders (102) are fixed with mounting plates (103). The bottom of the mounting plates (103) is fixed with anode terminals (104). A stepper motor (2) is fixed inside the lower part of the workbench (1). The upper surface of the workbench (1) is closely attached to the placement tray (201). Fixing plates (202) are embedded in the front and rear ends of the upper surface of the placement tray (201). A connector (203) is fixed at the front end of the placement tray (201). The end of the connector (203) near the middle of the placement tray (201) is rotatably connected to the placement cylinder (204) through a shaft. A cathode terminal (205) is fixed inside the lower part of the placement cylinder (204). A collection box (3) is fixed at the front end of the workbench (1).

2. The lithium battery cell formation apparatus according to claim 1, characterized in that, The stepper motor (2) is rotatably connected to the placement disk (201) through the transmission shaft at the power output end. The placement disk (201) rotates 180° clockwise on the upper surface of the workbench (1) each time.

3. The lithium battery cell formation apparatus according to claim 1, characterized in that, The bottom end of the placement tube (204) is in close contact with the upper surface of the placement plate (201) and the fixing plate (202), which is made of magnetic material and attracts the placement tube (204).

4. The lithium battery cell formation apparatus according to claim 1, characterized in that, Both of the placement cylinders (204) have eight placement holes arranged in a circular shape with equidistant vertical openings on their inner and outer sides. The number of cathode terminals (205) in the placement cylinder (204) is the same as the number of anode terminals (104) at the bottom of the mounting plate (103). The cathode terminals (205) are fixed at the bottom of the placement holes.

5. The lithium battery cell formation apparatus according to claim 1, characterized in that, The middle part of the placement hole in the rear placement cylinder (204) on the upper surface of the placement plate (201) and the middle part of the cathode terminal (205) in the placement hole are on the same vertical horizontal plane as the anode terminal (104) at the bottom of the mounting plate (103).

6. The lithium battery cell formation apparatus according to claim 1, characterized in that, The collection box (3) is located just below the outside of the front placement tube (204) on the placement tray (201), and the placement tube (204) rotates 110° around the connector (203).

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