Lithium battery formation negative pressure suction nozzle electrolyte dripping and collecting device

Abstract

The utility model discloses a lithium battery formation negative pressure suction nozzle electrolyte dripping collecting device which comprises a roller shutter collecting box, a front fixing piece is arranged at the upper end of the roller shutter collecting box, roller shutter cloth is arranged in the roller shutter collecting box, a rear fixing piece is arranged on the outer side of the roller shutter collecting box, and the rear fixing piece is connected with the roller shutter collecting box. The front fixing piece is fixedly connected with the rear fixing piece, a sliding rod is fixedly connected between the front fixing piece and the rear fixing piece, a sliding block is connected to the sliding rod in a sliding mode, and the lower end of the sliding block is fixedly connected with the outer edge of the rolling curtain cloth. Compared with the prior art, corrosion of the electrolyte to the probe and equipment can be reduced, the service life of the probe and the equipment can be prolonged, meanwhile, the structure is simple, the occupied space is small, the roller shutter curtain cloth is convenient to store, automatic curtain winding and unwinding can be achieved, the roller shutter curtain cloth can be conveniently additionally installed in the produced equipment, the installation requirement is low, and the use cost and the later maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery formation equipment, in particular to a lithium battery formation negative pressure suction nozzle electrolyte dripping collection device. Background Art

[0002] At present, the production process of lithium-ion batteries will go through a formation test process. The formation is often carried out under high temperature and negative pressure conditions. The negative pressure is to ensure that the battery is in a negative pressure state during the formation process. In order to make the chemical reaction of the positive and negative electrode materials in the electrolyte faster and more complete, the gas produced by the chemical reaction will be pumped out of the battery through the negative pressure pipe. In this process, the negative pressure inside the battery becomes larger and larger. As the negative pressure rises, part of the electrolyte inside the battery will be extracted and concentrated in the electrolyte collection cup. , electrolyte will also remain in the negative pressure pipe and negative pressure nozzle. When the battery is formed, nitrogen or atmosphere is used to break the vacuum. After the vacuum is broken, the electrolyte remaining in the negative pressure pipe will drip along the negative pressure nozzle to the battery filling port, battery surface, and equipment lifting mechanism. The dripping electrolyte will adhere to the battery filling port, battery surface, and equipment lifting mechanism to form electrolyte crystals, affecting the appearance of the battery and the cleanliness of the equipment. Production personnel need to clean batteries and equipment frequently, affecting the fully automatic rhythm of battery production, increasing production costs, and reducing the degree of factory automation production. Utility Model Content

[0003] The utility model aims to provide a lithium battery formation negative pressure suction nozzle electrolyte dripping collection device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A lithium battery formation negative pressure suction nozzle electrolyte drip collection device, comprising a rolling curtain collection box, a front fixing piece is provided at the upper end of the rolling curtain collection box, a rolling curtain cloth is provided inside the rolling curtain collection box, a rear fixing piece is provided on the outer side of the rolling curtain collection box, a sliding rod is fixedly connected between the front fixing piece and the rear fixing piece, a sliding block is slidably connected to the sliding rod, and the lower end of the sliding block is fixedly connected to the outer edge of the rolling curtain cloth.

[0006] As a further solution of the utility model: a reel is provided in the rolling shutter collecting box, and one end of the rolling shutter cloth is wound around the reel.

[0007] As a further solution of the utility model: the front fixing member and the rear fixing member are both provided with fixing threaded holes.

[0008] As a further solution of the utility model: two front fixing members and two rear fixing members are provided, two sliding rods are provided and the two sliding rods are arranged in parallel, and two ends of the two sliding rods are fixedly connected to the front fixing member and the rear fixing member respectively.

[0009] As a further solution of the utility model: the axial direction of the sliding rod is parallel to the pulling direction of the rolling curtain.

[0010] As a further solution of the utility model: a driving part is provided on the slide bar, and the driving part drives the slider to reciprocate on the slide bar.

[0011] As a further solution of the utility model: the rolling curtain is located below the negative pressure suction nozzle.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can collect the electrolyte dripping from the negative pressure nozzle by arranging a collection box and a rolling curtain, thereby reducing the corrosion of the electrolyte to the probe and the equipment, and improving the service life of the probe and the equipment. At the same time, the application has a simple structure, occupies a small space, and the rolling curtain is easy to store, and the curtain can be automatically retracted and extended. It can be easily installed in the equipment that has been produced, with low installation requirements, and reduced use costs and subsequent maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of this embodiment;

[0014] Figure 2 is a schematic diagram of the side structure of this embodiment;

[0015] Figure 3 1 is a front view structural diagram of this embodiment;

[0016] Figure 4 2 is a schematic diagram of the top view of the structure of this embodiment;

[0017] In the figure: 101-front fixing piece, 102-sliding rod, 103-rolling curtain collecting box, 104-fixing screw hole, 105-driving unit, 106-rear fixing piece, 107-rolling curtain. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4In the embodiment of the utility model, a lithium battery formation negative pressure nozzle electrolyte dripping collection device includes a rolling curtain collection box 103, a front fixing member 101 is provided at the upper end of the rolling curtain collection box 103, a rolling curtain cloth 107 is provided in the rolling curtain collection box 103, a reel is provided in the rolling curtain collection box 103, and one end of the rolling curtain cloth 107 is wound around the reel.

[0020] A rear fixing part 106 is provided on the outer side of the rolling shutter collection box 103, and fixing threaded holes 104 are provided on the front fixing part 101 and the rear fixing part 106. The fixing part and the collection box are fixed to the work station of the chemical formation equipment through the fixing threaded holes 104. A sliding rod 102 is fixedly connected between the front fixing part 101 and the rear fixing part 106, and a slider is slidably connected to the sliding rod 102. The lower end of the slider is fixedly connected to the outer edge of the rolling shutter curtain 107. In this embodiment, two front fixing members 101 and two rear fixing members 106 are provided, two sliding rods 102 are provided and the two sliding rods 102 are arranged in parallel, the two ends of the two sliding rods 102 are fixedly connected to the front fixing member 101 and the rear fixing member 106 respectively, the axial direction of the sliding rod 102 is parallel to the pulling direction of the rolling curtain 107, and a driving part 105 is provided on the sliding rod 102. The driving part 105 drives the slider to reciprocate on the sliding rod 102, and the rolling curtain 107 is located below the negative pressure suction nozzle.

[0021] When the utility model is in use, during the formation process of the lithium battery, the negative pressure suction nozzle is pressed against the battery injection hole to perform negative pressure formation. However, in this process, due to the effect of negative pressure, the electrolyte in the battery will be drawn out of the battery, and flow upward along the negative pressure suction nozzle and the negative pressure pipeline, and part of it will remain in the negative pressure collection cup. There will also be a small amount of electrolyte in the negative pressure suction nozzle and the negative pressure pipeline. When the formation process is completed, after breaking the vacuum with nitrogen or atmosphere, the negative pressure suction nozzle and the battery injection hole are separated, and the electrolyte remaining in the negative pressure suction nozzle and the negative pressure pipeline will flow back. When the amount of electrolyte reaches a certain level, it forms a water drop shape and drips. At this time, the device below the device If the battery is in the electrolyte for a long time, it will cause corrosion, especially when the positive and negative electrode probes are distributed up and down, the dripping electrolyte will drip onto the probes. If the probes are not cleaned in time, the electrolyte will corrode the probes, greatly reducing the service life of the probes and increasing the subsequent maintenance costs. In this embodiment, after the formation and vacuum breaking, the driving unit 105 moves along the sliding rod to the position of the rear fixing part 106 to collect the electrolyte dropped by the negative pressure nozzle, until the next tray of batteries enters the storage position, and then the driving unit 105 moves along the sliding rod to the position of the front fixing part 101 again to complete the action of the rolling curtain 107 to collect the electrolyte.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lithium battery formation negative pressure nozzle electrolyte dripping collection device, characterized in that: The invention comprises a rolling curtain collection box (103), wherein a front fixing part (101) is provided at the upper end of the rolling curtain collection box (103), a rolling curtain cloth (107) is provided inside the rolling curtain collection box (103), a rear fixing part (106) is provided at the outer side of the rolling curtain collection box (103), a sliding rod (102) is fixedly connected between the front fixing part (101) and the rear fixing part (106), a sliding block is slidably connected to the sliding rod (102), and the lower end of the sliding block is fixedly connected to the outer edge of the rolling curtain cloth (107).

2. The negative pressure suction nozzle electrolyte dripping collection device for lithium battery formation according to claim 1, characterized in that: A reel is provided in the rolling shutter collection box (103), and one end of the rolling shutter curtain (107) is wound around the reel.

3. The negative pressure suction nozzle electrolyte dripping collection device for lithium battery formation according to claim 1, characterized in that: The front fixing member (101) and the rear fixing member (106) are both provided with fixing threaded holes (104).

4. The electrolyte dripping collection device for a lithium battery formation negative pressure nozzle according to claim 1, characterized in that: The front fixing member (101) and the rear fixing member (106) are each provided with two, the sliding rods (102) are provided with two and the two sliding rods (102) are arranged in parallel, and the two ends of the two sliding rods (102) are respectively fixedly connected to the front fixing member (101) and the rear fixing member (106).

5. The electrolyte dripping collection device for a lithium battery formation negative pressure nozzle according to claim 4, characterized in that: The axial direction of the sliding rod (102) is parallel to the pulling direction of the rolling curtain (107).

6. The negative pressure suction nozzle electrolyte dripping collection device for lithium battery formation according to claim 1, characterized in that: The slide bar (102) is provided with a driving unit (105), and the driving unit (105) drives the slide block to reciprocate on the slide bar (102).

7. The electrolyte dripping collection device for a lithium battery formation negative pressure nozzle according to claim 1, characterized in that: The rolling curtain (107) is located below the negative pressure suction nozzle.

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