Electrolyte bubble removing device and liquid injection machine

Abstract

The utility model discloses an electrolyte bubble removing device and a liquid injection machine, the electrolyte bubble removing device comprises a standing module, the standing module comprises at least two standing tanks used for loading electrolyte, the standing tanks are connected in parallel so as to realize simultaneous work or alternate work, and the standing tanks are used for standing the electrolyte so as to eliminate bubbles; the first liquid supply module comprises a first liquid supply pipe, the liquid outlet end of the first liquid supply pipe is connected with the standing tank, and the first liquid supply pipe conveys electrolyte to be subjected to bubble elimination to the standing tank; and the liquid injection module is connected to the liquid outlet of the standing tank and is used for injecting electrolyte into the battery cell. The electrolyte bubble removing device is applied to the liquid injection machine. According to the liquid injection machine, the electrolyte is subjected to standing through the two standing tanks which are connected in parallel, and the working mode is adjusted according to the actual production situation, so that the standing tanks work simultaneously or alternately, the working efficiency of the liquid injection machine is ensured, the liquid injection work is not influenced by the standing time, and the utilization rate and the flexibility of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrolyte injection technology, and in particular to an electrolyte degassing device and an electrolyte injection machine. Background Technology

[0002] The battery manufacturing process includes an electrolyte injection step, in which electrolyte is injected into the battery using an injection pump. However, tiny air bubbles are generated during the injection process. These bubbles affect the stability of the injected electrolyte volume, leading to problems such as low battery energy and high internal resistance, severely impacting battery performance. Therefore, it is necessary to remove air bubbles from the electrolyte before injecting it into the battery cell.

[0003] Existing electrolyte degassing devices typically remove bubbles by adding a stirring device to agitate the electrolyte in the tank. The agitated liquid is then transferred to an injection tank for electrolyte injection into the battery cells. However, this method of eliminating bubbles by agitation has the following problems: 1. Because the agitation device requires an explosion-proof environment, all hardware involved in the degassing device needs to be explosion-proof, leading to increased costs; 2. After the injection tank has been filled, but the agitation device is still agitating the liquid, a time limit needs to be reserved to pause the injection process, reducing work efficiency.

[0004] Therefore, this application proposes a technical solution to solve the above problems. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an electrolyte degassing device and an electrolyte injection machine. The electrolyte degassing device uses a static method to eliminate bubbles, which not only effectively eliminates bubbles in the electrolyte but also ensures production efficiency and reduces equipment costs. Furthermore, the electrolyte degassing device used in the injection machine ensures the quality of the battery cells.

[0006] In a first aspect, an electrolyte degassing device according to an embodiment of the present invention includes:

[0007] The settling module includes at least two settling tanks for loading electrolyte, the settling tanks being connected in parallel to enable simultaneous or alternating operation, the settling tanks being used to settling the electrolyte to eliminate air bubbles;

[0008] The first liquid supply module includes a first liquid supply pipe, the outlet end of which is connected to a settling tank, and the first liquid supply pipe supplies electrolyte to the settling tank to eliminate air bubbles.

[0009] The electrolyte injection module is connected to the outlet of the settling tank and is used to inject electrolyte into the battery cell.

[0010] An electrolyte degassing device according to an embodiment of the present invention has at least the following beneficial effects: after the electrolyte to be degassed is stored in a settling tank for a period of time, it can be used for cell injection once the bubbles in the electrolyte are completely eliminated. Specifically, by setting up two or more settling tanks connected in parallel to simultaneously settling and degassing the electrolyte, the working modes of the settling tanks can be adjusted according to actual production conditions, allowing the settling tanks to work simultaneously or alternately. This ensures the working efficiency of the injection machine, prevents the injection process from being affected by the settling time, guarantees production efficiency, and improves equipment utilization and flexibility.

[0011] According to an embodiment of the present invention, an electrolyte degassing device includes a settling module that further includes a vacuum pumping device connected to the settling tank. The vacuum pumping device is used to create a vacuum environment inside the settling tank.

[0012] According to an embodiment of the present invention, an electrolyte degassing device is provided, and a vacuum pumping device is provided. The vacuum pumping device is connected in parallel with multiple settling tanks. The vacuum pumping device can achieve a vacuum environment inside one settling tank or multiple settling tanks at the same time.

[0013] According to an embodiment of the present invention, an electrolyte degassing device is provided with multiple vacuum pumping devices, one of which is connected to a settling tank.

[0014] According to an embodiment of the present invention, an electrolyte degassing device includes a settling module that further includes a filter device. The inlet end of the filter device is connected to a first supply pipe, and the outlet end of the filter device is connected to a settling tank via a pipeline.

[0015] According to an embodiment of the present invention, an electrolyte degassing device is provided, and the outlet end of the filter device is connected in parallel with multiple settling tanks.

[0016] According to an embodiment of the present invention, an electrolyte degassing device is provided, wherein multiple filtration devices are provided, and the liquid outlet of one filtration device is connected to a corresponding settling tank.

[0017] An electrolyte degassing device according to an embodiment of the present invention further includes a cleaning module, which includes a cleaning device. The outlet of the cleaning device is connected to the cleaning liquid inlet of the injection module, and the cleaning device is used to clean the injection module.

[0018] According to an embodiment of the present invention, an electrolyte degassing device includes a cleaning module that further includes a waste liquid collection device. The waste liquid collection device includes a waste liquid tank, the inlet of which is connected to the cleaning liquid outlet of the injection module. The waste liquid tank is used to collect the cleaning liquid that has been used.

[0019] Secondly, according to an embodiment of the present invention, a liquid injection machine utilizes the aforementioned electrolyte degassing device.

[0020] An electrolyte degassing device according to an embodiment of the present invention has at least the following beneficial effects: after the electrolyte to be degassed is stored in a settling tank for a period of time, it can be used for cell injection once the bubbles in the electrolyte are completely eliminated. Specifically, by setting up two or more settling tanks connected in parallel to simultaneously settling and degassing the electrolyte, the working modes of the settling tanks can be adjusted according to actual production conditions, allowing the settling tanks to work simultaneously or alternately. This ensures the working efficiency of the injection machine, prevents the injection process from being affected by the settling time, guarantees production efficiency, and improves equipment utilization and flexibility.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a first structural diagram of an electrolyte degassing device according to an embodiment of the present invention;

[0024] Figure 2 This is a flow diagram of the cleaning fluid according to an embodiment of the present invention;

[0025] Figure 3 This is a flow diagram of the electrolyte being injected into the settling tank according to an embodiment of the present invention;

[0026] Explanation of reference numerals in the attached figures:

[0027] 100 saturation tank;

[0028] First liquid supply pipe 200;

[0029] 300 injection module;

[0030] Vacuum pumping device 400;

[0031] Filter device 500;

[0032] Cleaning fluid storage tank 600;

[0033] Waste liquid tank 700;

[0034] 800 vacuum tube;

[0035] Electrolyte output mechanism 900. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of a utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] Reference Figures 1 to 3 This utility model provides an electrolyte degassing device, comprising a first supply module, a settling module, and an injection module 300 arranged sequentially along the electrolyte conveying direction. The settling module includes two or more settling tanks 100 for loading electrolyte, which are connected in parallel to enable simultaneous or alternating operation. The settling tanks 100 are used to set the electrolyte still to eliminate bubbles.

[0041] Specifically, the first liquid supply module is provided with a first liquid supply pipe 200, the outlet of the first liquid supply pipe 200 is connected to the settling tank 100, the first liquid supply pipe 200 supplies electrolyte to the settling tank 100 to eliminate bubbles, and the liquid injection module 300 is connected to the outlet of the settling tank 100 to inject electrolyte to the battery cell to eliminate bubbles.

[0042] The working principle of the electrolyte degassing device of this application is as follows: After the electrolyte to be degassed is stored in the settling tank 100 for a period of time, it can be used for cell injection once the bubbles in the electrolyte are completely eliminated. Specifically, by setting up two or more settling tanks 100 connected in parallel to simultaneously settling and degassing the electrolyte, the working modes of the settling tanks 100 can be adjusted according to actual production conditions, allowing the settling tanks 100 to work simultaneously or alternately. This ensures the working efficiency of the injection machine, making the injection work unaffected by the settling time, guaranteeing production efficiency, and improving equipment utilization and flexibility.

[0043] According to some embodiments of this application, in order to shorten the efficiency of bubble elimination in the settling tank 100, preferably, when the settling tank 100 is in working condition, the inside of the settling tank 100 is a vacuum working environment, so that the electrolyte containing bubbles can accelerate the bubble elimination speed under vacuum. Specifically, as shown in the figure, a vacuum pumping device 400 is connected to the settling tank 100.

[0044] Optionally, multiple vacuum devices 400 may be provided, with the specific number set according to the actual number of settling tanks 100, so that one vacuum device 400 is independently connected to one settling tank 100.

[0045] Preferably, as shown in the figure, only one vacuum pumping device 400 is provided. This device is connected in parallel to multiple settling tanks 100 via pipelines, allowing one device to operate simultaneously or in rotation for all tanks 100, thus reducing equipment costs. Furthermore, each settling tank 100 is equipped with an independent control valve on its connecting pipeline, enabling individual operation for each tank requiring vacuuming.

[0046] According to some embodiments of this application, further, to ensure the product quality of the battery cells, this application preferably filters the electrolyte entering the settling tank 100. As shown in the figure, a filter device 500 is connected to the inlet of the settling tank 100. Specifically, the electrolyte supply tank delivers the electrolyte with unremoved air bubbles to the filter device 500 through the first supply pipe 200, and after filtration, it is then delivered to the settling tank 100 for settling treatment.

[0047] Optionally, multiple filter devices 500 can be provided, and a settling tank 100 can be correspondingly provided to one filter device 500 for individual filtration operation.

[0048] Preferably, as shown in the figure, there may be only one filter device 500, which is connected in parallel to multiple settling tanks 100 via pipelines. Furthermore, each settling tank 100 is equipped with an independent control valve on the connecting pipeline between the filter device 500 and each settling tank 100, so that the settling tank 100 that needs to be injected with electrolyte can be operated individually.

[0049] According to some embodiments of this application, this application also includes a cleaning module for cleaning the liquid injection module 300. Specifically, as shown in the figure, the cleaning module includes a cleaning device and a waste liquid collection device. The outlet of the cleaning device is connected to the cleaning liquid inlet of the liquid injection module 300, while the waste liquid tank 700 is connected to the outlet of the liquid injection module 300.

[0050] It is understandable that when the injection module 300 needs to be cleaned, the cleaning device will deliver the cleaning fluid containing the cleaning agent into the injection module 300, and then discharge the cleaning fluid into the waste liquid tank 700 after the cleaning fluid stays in the injection module 300 for a period of time.

[0051] Alternatively, the cleaning fluid can be filled into the injection module 300 and then discharged into the waste liquid tank 700, using the continuous flow of liquid to carry away the residual liquid in the injection module 300.

[0052] Waste liquid tank 700 recycles used cleaning fluid to avoid environmental pollution.

[0053] Optionally, the cleaning device includes a pump and a cleaning fluid storage tank 600, the pump being able to deliver the cleaning fluid in the cleaning fluid storage tank 600 to the injection module 300.

[0054] Preferably, as shown in the figure, the waste liquid collection device includes a waste liquid tank 700 and a vacuum tube 800, wherein one end of the vacuum tube is connected to the bottom of the waste liquid tank 700, and the other end is connected to the vacuum device 400. The vacuum device 400 creates a pressure difference between the waste liquid tank 700 and the cleaning fluid storage tank 600, allowing the cleaning fluid to be drawn and transported into the injection module 300 and discharged into the waste liquid tank 700.

[0055] Specifically, as shown in the figure, one end of the vacuum tube 800 extends from the bottom of the waste liquid tank 700 and passes through the bottom of any of the settling tanks 100. After passing through the settling tank 100, it is connected to the vacuum device 400, so as to make the overall structure of the equipment more compact and reduce the space occupancy rate.

[0056] Furthermore, the electrolyte injection module 300 is connected to multiple electrolyte output mechanisms 900, and each electrolyte output mechanism 900 and the electrolyte injection module 300 can be equipped with a corresponding outlet valve, so that the electrolyte output mechanism 900 can inject electrolyte into multiple cells at the same time or allow the user to use any one electrolyte output mechanism 900 individually according to actual needs.

[0057] This application also provides a liquid injection machine that uses the above-mentioned electrolyte degassing device. The electrolyte degassing device of this application makes the liquid injection work unaffected by the standing time, ensuring the working efficiency of the liquid injection machine, guaranteeing production efficiency, and improving the utilization rate and flexibility of the equipment.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrolyte bubble removing device characterized by comprising: include: A settling module includes at least two settling tanks (100) for holding electrolyte, the settling tanks (100) being connected in parallel to enable simultaneous or alternating operation, the settling tanks (100) being used to settling the electrolyte to eliminate air bubbles; The first liquid supply module includes a first liquid supply pipe (200), the outlet end of the first liquid supply pipe (200) is connected to the settling tank (100), and the first liquid supply pipe (200) supplies the settling tank (100) with electrolyte to eliminate bubbles; The liquid injection module (300) is connected to the liquid outlet of the settling tank (100) and is used to inject electrolyte into the battery cell.

2. The electrolyte bubble removal device of claim 1, wherein The settling module also includes a vacuum pumping device (400), which is connected to the settling tank (100) and is used to create a vacuum environment inside the settling tank (100).

3. The electrolyte bubble removal device of claim 2, wherein One vacuum pumping device (400) is provided, and the vacuum pumping device (400) is connected in parallel with multiple settling tanks (100). The vacuum pumping device (400) can achieve a vacuum environment inside one settling tank (100) or multiple settling tanks (100) at the same time.

4. The electrolyte bubble removal device of claim 2, wherein Multiple vacuum pumping devices (400) are provided, and one vacuum pumping device (400) is connected to one of the settling tanks (100).

5. The electrolyte bubble removal device of claim 1, wherein The settling module also includes a filter device (500), the inlet end of which is connected to the first liquid supply pipe (200), and the outlet end of which is connected to the settling tank (100) through a pipeline.

6. The electrolyte bubble removal device of claim 5, wherein One filter device (500) is provided, and the liquid outlet end of the filter device (500) is connected in parallel with multiple settling tanks (100).

7. The electrolyte bubble removal device of claim 5, wherein Multiple filtration devices (500) are provided, and the liquid outlet of one filtration device (500) is connected to one of the settling tanks (100).

8. The electrolyte bubble removal device of claim 1, wherein It also includes a cleaning module, which includes a cleaning device. The outlet of the cleaning device is connected to the cleaning fluid inlet of the injection module (300). The cleaning device is used to clean the injection module (300).

9. The electrolyte bubble removal device of claim 8, wherein The cleaning module also includes a waste liquid collection device, which includes a waste liquid tank (700). The inlet of the waste liquid tank (700) is connected to the cleaning liquid outlet of the liquid injection module (300). The waste liquid tank (700) is used to collect the cleaning liquid that has been used.

10. A liquid injection machine characterized by comprising: Includes the electrolyte degassing device according to any one of claims 1 to 9.

Images