Battery wetting device and battery production apparatus

Abstract

Disclosed in the present application are a battery wetting device and a battery production apparatus. The battery wetting device comprises a pressure chamber, a gas buffer assembly, a gas replenishment assembly and a vacuum pumping assembly. The pressure chamber is provided with a pressure cavity configured for placement of a battery. The gas buffer assembly comprises a gas buffer member, a first valve and a second valve, wherein the first valve is arranged between an inlet of the gas buffer member and the pressure chamber, and the second valve is arranged between an outlet of the gas buffer member and the pressure chamber. The gas replenishment assembly comprises a gas replenishment member and a third valve, wherein the gas replenishment member is arranged on the side of the gas buffer member close to the outlet of the gas buffer member, and the third valve is arranged between the outlet of the gas replenishment member and the pressure chamber. The vacuum pumping assembly comprises a vacuum pumping member and a fourth valve, wherein the vacuum pumping member is arranged on the side of the gas buffer member close to the inlet of the gas buffer member, and the fourth valve is arranged between an inlet of the vacuum pumping member and the pressure chamber. The battery wetting device in the present application can improve the wetting efficiency of batteries.

Description

Battery wetting device and battery production equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202520188153.7, filed on February 5, 2025, entitled "Battery Immersion Apparatus and Battery Production Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of battery manufacturing technology, and in particular to a battery wetting device and battery manufacturing equipment. Background Technology

[0004] Lithium batteries are one of the most commonly used battery types in electric vehicles. Immersion is an important step in the production of lithium-ion batteries. During the immersion process, the electrolyte injected into the battery needs to completely penetrate the battery electrodes and separators to fully wet the battery. Traditional immersion devices have long immersion times and low immersion efficiency.

[0005] Utility Model Content

[0006] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a battery wetting device that can improve the wetting efficiency of the battery.

[0007] This application also provides a battery manufacturing apparatus.

[0008] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0009] A battery immersion apparatus according to a first aspect of this application includes: a pressure chamber with a pressure cavity for placing a battery; a gas buffer assembly including a gas buffer element, a first valve, and a second valve, wherein the inlet and outlet of the gas buffer element are both connected to the pressure cavity, the first valve is disposed between the inlet of the gas buffer element and the pressure chamber, and the second valve is disposed between the outlet of the gas buffer element and the pressure chamber; a gas replenishment assembly including a gas replenishment element and a third valve, wherein the gas replenishment element is disposed on the side of the gas buffer element near the outlet of the gas buffer element, the outlet of the gas replenishment element is connected to the pressure cavity, and the third valve is disposed between the outlet of the gas replenishment element and the pressure chamber; and a vacuuming assembly including a vacuuming element and a fourth valve, wherein the vacuuming element is disposed on the side of the gas buffer element near the inlet of the gas buffer element, the inlet of the vacuuming element is connected to the pressure cavity, and the fourth valve is disposed between the inlet of the vacuuming element and the pressure chamber.

[0010] The battery wetting device of this application has the following advantages:

[0011] In the immersion apparatus of this application, the battery can be placed in the pressure chamber of the pressure chamber, and the third valve can be opened while the first, second, and fourth valves are closed. Gas is then supplied to the pressure chamber via a gas replenishment device, causing the battery casing to deform under the pressure within the chamber. This further raises the electrolyte level inside the battery, accelerating the complete liquid sealing of the winding core by the electrolyte. When the winding core is completely immersed in the electrolyte, the third valve can be closed and the first valve opened, allowing gas from the pressure chamber to enter the gas buffer, thereby depressurizing the pressure chamber. Simultaneously, the gas buffer buffer stores the gas within the pressure chamber, enabling its recycling and reducing energy consumption. When the pressure in the pressure chamber equals the pressure in the gas buffer, the first valve can be closed and the fourth valve opened, allowing a vacuum to be created within the pressure chamber via a vacuum pump, thus expelling excess gas from inside the winding core. When the vacuum level in the pressure chamber reaches a preset vacuum level, the fourth valve can be closed. The first valve is opened to allow gas from the gas buffer to enter the pressure chamber, thus pressurizing the pressure chamber. When the pressure in the pressure chamber equals the pressure in the gas buffer and the pressure in the pressure chamber has not reached the preset pressure value, the third valve is opened to allow gas to be supplied to the pressure chamber through the gas replenishment component, so that the pressure in the pressure chamber reaches the preset pressure value. This allows the electrodes inside the core to move relative to each other through the vacuuming and pressurizing action in the pressure chamber, thereby accelerating the gas discharge speed inside the core. Through multiple cycles of vacuuming and pressurizing, all excess gas inside the core is discharged. After all excess gas inside the core is discharged, the third valve is opened again, and the first, second, and fourth valves are closed. Gas is supplied to the pressure chamber through the gas replenishment component, so that all parts inside the core can be wetted with electrolyte. Thus, the battery wetting device of this application can improve the battery wetting efficiency with the cooperation of the gas replenishment component and the vacuuming component.

[0012] According to a first aspect embodiment of the battery immersion apparatus, the battery immersion apparatus further includes a first pipe, the two ends of the first pipe being connected to the inlet of the gas buffer and the pressure chamber respectively, and the first valve is disposed on the first pipe.

[0013] According to the battery immersion apparatus of the first aspect of this application, the battery immersion apparatus further includes a second pipe, the two ends of the second pipe being connected to the outlet of the gas buffer and the pressure chamber respectively, and a second valve is disposed on the second pipe.

[0014] According to the battery immersion apparatus of the first aspect of this application, the battery immersion apparatus further includes a third pipe and a fifth valve, wherein the fifth valve is disposed between the second valve and the pressure chamber, the second valve is disposed at one end of the second pipe near the gas buffer, the two ends of the third pipe are respectively connected to the gas replenishment component and the second pipe, and the connection between the third pipe and the second pipe is disposed between the second valve and the fifth valve, and the third valve is disposed on the third pipe.

[0015] According to a battery immersion apparatus of a first aspect of this application, the first conduit has a first branch and a second branch;

[0016] One end of the first branch and one end of the second branch are both connected to the inlet of the gas buffer, and the other end of the first branch and the other end of the second branch are both connected to the pressure chamber. The vacuum pump and the fourth valve are disposed on the second branch, and the first valve is disposed on the first branch.

[0017] According to the battery immersion apparatus of the first aspect of this application, the battery immersion apparatus further includes a sixth valve, which is disposed on the first pipe and at any position between the junction of the first branch and the second branch near the pressure chamber and the pressure chamber.

[0018] According to a first aspect embodiment of the battery immersion apparatus of this application, the battery immersion apparatus further includes a heating component disposed within the pressure chamber.

[0019] According to a battery immersion apparatus based on a first aspect of this application, the heating assembly includes a heating element disposed within the pressure chamber.

[0020] According to the battery immersion apparatus of the first aspect of this application, the heating component further includes a temperature measuring element disposed within the pressure chamber.

[0021] According to the battery immersion apparatus of the first aspect of this application, the heating element and the temperature measuring element are respectively disposed on opposite sides of the pressure chamber.

[0022] According to the battery immersion apparatus of the first aspect of this application, the heating component further includes a heat insulation member disposed within the pressure chamber and between the heating member and the chamber wall of the pressure chamber.

[0023] According to a first aspect embodiment of the battery immersion apparatus of this application, the battery immersion apparatus further includes a guide rail disposed within the pressure chamber and extending from the inlet of the pressure chamber to the outlet of the pressure chamber.

[0024] According to the battery immersion device of the first aspect of this application, the battery immersion device further includes a plurality of carriers, each of the carriers being slidably connected to the guide rail, each of the carriers being provided with a plurality of carrier cavities, each of the carrier cavities being used for placing a battery.

[0025] According to the battery immersion apparatus of the first aspect of this application, the pressure chamber includes a chamber body, a first door and a second door, the chamber body is provided with the pressure chamber, the first door and the second door are respectively connected to both ends of the chamber body, and the guide rail extends from the inlet of the first door to the second door.

[0026] A battery production apparatus according to a second aspect of this application includes, as described above, a battery immersion apparatus.

[0027] The battery production equipment of this application has the following advantages:

[0028] In the battery production equipment of this application, since the aforementioned battery wetting device can improve the wetting efficiency of the battery, the battery production equipment of this application can have a high production efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 shows a schematic diagram of the battery wetting device in this application;

[0031] Figure 2 shows an enlarged structural schematic diagram of point A in Figure 1;

[0032] Figure 3 shows a schematic diagram of the gas buffer assembly, gas replenishment assembly, and vacuum pumping assembly in this application;

[0033] Figure 4 shows a side view of the pressure chamber, guide rail, and load-bearing components in this application.

[0034] Explanation of key component symbols:

[0035] 100 - Pressure chamber; 110 - Pressure cavity; 120 - Chamber body; 130 - First hatch; 140 - Second hatch;

[0036] 200 - Gas buffer assembly; 210 - Gas buffer element; 220 - First valve; 230 - Second valve;

[0037] 300 - Air supply assembly; 310 - Air supply component; 320 - Third valve;

[0038] 400 - Vacuum assembly; 410 - Vacuum component; 420 - Fourth valve;

[0039] 510 - First pipeline; 511 - First branch; 512 - Second branch; 520 - Second pipeline; 530 - Third pipeline;

[0040] 610 - Fifth valve; 620 - Sixth valve;

[0041] 700 - Heating assembly; 710 - Heating element; 720 - Temperature sensing element; 730 - Heat insulation element;

[0042] 800-guide rail;

[0043] 900 - Load-bearing component; 910 - Load-bearing cavity. Embodiments of the present invention

[0044] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0045] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] Referring to Figures 1 and 3, the battery immersion device involved in the embodiments of this application includes: a pressure chamber 100, a gas buffer assembly 200, a gas replenishment assembly 300, and a vacuum assembly 400.

[0050] Specifically, the pressure chamber 100 is provided with a pressure cavity 110 for placing the battery; the gas buffer assembly 200 includes a gas buffer element 210, a first valve 220, and a second valve 230. The inlet and outlet of the gas buffer element 210 are both connected to the pressure cavity 110. The first valve 220 is located between the inlet of the gas buffer element 210 and the pressure chamber 100, and the second valve 230 is located between the outlet of the gas buffer element 210 and the pressure chamber 100; the gas replenishment assembly 300 includes a gas replenishment element 310 and a third valve 320, which replenishes... The gas component 310 is located on the side of the gas buffer component 210 near the outlet of the gas buffer component 210. The outlet of the gas replenishment component 310 is connected to the pressure chamber 110. The third valve 320 is located between the outlet of the gas replenishment component 310 and the pressure chamber 100. The vacuum assembly 400 includes a vacuum component 410 and a fourth valve 420. The vacuum component 410 is located on the side of the gas buffer component 210 near the inlet of the gas buffer component 210. The inlet of the vacuum component 410 is connected to the pressure chamber 110. The fourth valve 420 is located between the inlet of the vacuum component 410 and the pressure chamber 100.

[0051] In the immersion apparatus of this application, the battery can be placed in the pressure chamber 110 of the pressure chamber 100, and the third valve 320 can be opened while the first valve 220, the second valve 230, and the fourth valve 420 are closed. Air is then supplied to the pressure chamber 110 via the air supply component 310, causing the battery casing to be deformed by the pressure within the pressure chamber 110. This further causes the electrolyte level inside the battery to rise, thereby accelerating the rate at which the electrolyte completely liquid-seals the winding core. When the winding core is completely immersed in the electrolyte, the third valve 320 can be closed and the first valve 220 opened, allowing the pressure chamber 110 to... Gas can enter the gas buffer 210 to depressurize the pressure chamber 110. Simultaneously, the gas buffer 210 buffers the gas within the pressure chamber 110, allowing for gas recycling and reducing energy consumption. When the pressure in the pressure chamber 110 equals the pressure in the gas buffer 210, the first valve 220 is closed and the fourth valve 420 is opened. This allows the vacuum pump 410 to evacuate the pressure chamber 110, expelling excess gas from the winding core. When the vacuum level in the pressure chamber 110 reaches the preset vacuum level, it can... The fourth valve 420 is closed, and the second valve 230 is opened to allow gas in the gas buffer 210 to enter the pressure chamber 110, thereby pressurizing the pressure chamber 110. When the pressure in the pressure chamber 110 equals the pressure in the gas buffer and the pressure in the pressure chamber 110 has not reached the preset pressure value, the third valve 320 is opened to allow gas to be supplied to the pressure chamber 110 through the gas replenishment component 310, so that the pressure in the pressure chamber 110 reaches the preset pressure value. This allows the electrodes inside the winding core to be pressurized through the vacuum in the pressure chamber 110. The actions interact with each other, thereby accelerating the gas discharge speed inside the winding core. Through multiple cycles of vacuuming and pressurizing, all excess gas inside the winding core is discharged. Once all excess gas inside the winding core is discharged, the third valve 320 can be opened again, while the first valve 220, the second valve 230, and the fourth valve 420 are closed. Gas is then supplied to the pressure chamber 110 through the gas supply component 310, ensuring that all parts inside the winding core are wetted with electrolyte. Thus, the battery wetting device of this application can improve the battery wetting efficiency with the cooperation of the gas supply component 300 and the vacuuming component 400.

[0052] Specifically, in this embodiment, the gas supplied by the gas replenishment component 310 to the pressure chamber 110 can be any one of nitrogen, oxygen or hydrogen.

[0053] Referring to FIG3, the battery immersion device further includes a first pipe 510 and a second pipe 520. The two ends of the first pipe 510 are connected to the inlet of the gas buffer 210 and the pressure chamber 110, respectively. The two ends of the second pipe 520 are connected to the outlet of the gas buffer 210 and the pressure chamber 110, respectively. A first valve 220 is disposed on the first pipe 510 and a second valve 230 is disposed on the second pipe 520.

[0054] In this embodiment, when the first valve 220 is opened, the gas in the pressure chamber 110 can enter the gas buffer 210 through the first pipe 510 to buffer the gas in the pressure chamber 110, thereby enabling the gas in the pressure chamber 110 to be recycled and reducing energy consumption. When the second valve 230 is opened, the gas in the gas buffer 210 can enter the pressure chamber 110 through the second pipe 520 to pressurize the pressure chamber 110.

[0055] Referring to Figure 3, the battery immersion device also includes a third pipe 530 and a fifth valve 610. The fifth valve 610 is located between the second valve 230 and the pressure chamber 110. The second valve 230 is located at one end of the second pipe 520 near the gas buffer 210. The two ends of the third pipe 530 are respectively connected to the gas supply component 310 and the second pipe 520. The connection between the third pipe 530 and the second pipe 520 is located between the second valve 230 and the fifth valve 610. The third valve 320 is located on the third pipe 530.

[0056] In this embodiment, when the third valve 320 and the fifth valve 610 are opened, the gas in the gas supply component 310 can enter the pressure chamber 110 sequentially through the third pipe 530 and the second pipe 520 to pressurize the pressure chamber 110. At the same time, since the connection between the third pipe 530 and the second pipe 520 is located between the second valve 230 and the fifth valve 610, the opening and closing of the second valve 230 can avoid interfering with the gas flow in the gas supply component 310. Even if the second valve 230 is closed, the gas in the gas supply component 310 can still enter the pressure chamber 110 through the second pipe 520, so as to realize the independence of the gas buffer component 210 and the gas supply component 310. When it is necessary to depressurize the pressure chamber 110, the fifth valve 610 can be closed so that the gas in the pressure chamber 110 can enter the pressure buffer component or the vacuum component 410 through the first pipe 510.

[0057] Referring to Figure 3, the first pipe 510 has a first branch 511 and a second branch 512;

[0058] One end of the first branch 511 and one end of the second branch 512 are connected to the inlet of the gas buffer 210. The other end of the first branch 511 and the other end of the second branch 512 are connected to the pressure chamber 110. The vacuum pump 410 and the fourth valve 420 are installed on the second branch 512, and the first valve 220 is installed on the first branch 511.

[0059] The battery immersion device also includes a sixth valve 620, which is disposed on the first pipe 510 and is located at any position between the junction of the first branch 511 and the second branch 512 near the pressure chamber 110 and the pressure chamber 110.

[0060] In this embodiment, when the core is completely immersed in the electrolyte, the third valve 320 is closed and the first valve 220 is opened, so that the gas in the pressure chamber 110 can enter the gas buffer 210 through the first branch 511 to depressurize the pressure chamber 110. When the pressure in the pressure chamber 110 is equal to the pressure in the gas buffer 210, the first valve 220 is closed and the fourth valve 420 is opened, so that the vacuum pump 410 can evacuate the pressure chamber 110 through the second branch 512, thereby allowing excess gas inside the core to be discharged. When it is necessary to pressurize the pressure chamber 110, the sixth valve 620 is closed and the fifth valve 610 is opened. At the same time, the second valve 230 or the third valve 320 is opened, so that the gas in the gas buffer 210 or the gas replenishment component 310 can enter the pressure chamber 110, thereby pressurizing the pressure chamber 110.

[0061] Referring to FIG1, the battery immersion device also includes a heating component 700, which is disposed in the pressure chamber 110.

[0062] In this embodiment, the heating component 700 can heat and keep the pressure chamber 110 warm, preventing the gas from condensing in the pressure chamber 110 and the electrolyte from solidifying, thereby improving the smoothness of electrolyte flow.

[0063] Referring to Figures 2 and 4, the heating assembly 700 includes a heating element 710 and a temperature measuring element 720, both of which are disposed within the pressure chamber 110.

[0064] In this embodiment, the heating element 710 can heat and keep the pressure chamber 110 warm, preventing the gas from condensing in the pressure chamber 110 and the electrolyte from solidifying. Furthermore, the temperature measuring element 720 can monitor the temperature in the pressure chamber 110 in real time to prevent the temperature in the pressure chamber 110 from becoming too high. When the temperature in the pressure chamber 110 is too high, the electrolyte may decompose.

[0065] Specifically, the heating element 710 and the temperature measuring element 720 are respectively disposed on opposite sides of the pressure chamber 110, that is, the heating element 710 is disposed at the bottom of the heating chamber and the temperature measuring element 720 is disposed at the top of the pressure chamber 110. In this way, the accuracy of the temperature measured by the temperature measuring element 720 can be improved. When the heating element 710 heats the pressure chamber 110, if the temperature at the location of the temperature measuring element 720 reaches a certain temperature value, it means that the temperature at all points in the pressure chamber 110 has reached that temperature value.

[0066] Referring to FIG2, the heating assembly 700 further includes a heat insulation member 730, which is disposed in the pressure chamber 110 and between the heating member 710 and the chamber wall of the pressure chamber 110.

[0067] In this embodiment, since the heat insulation component 730 is disposed inside the pressure chamber 110 and between the heating component 710 and the cavity wall of the pressure chamber 110, the heat insulation component 730 can thermally insulate the heating component 710 and the cavity wall of the pressure chamber 110, thereby reducing the heat absorbed by the chamber body 120 of the pressure chamber 100 and increasing the temperature rise rate inside the pressure chamber 110. At the same time, the heat insulation component 730 can keep the pressure chamber 110 warm and reduce the heat dissipation rate inside the pressure chamber 110.

[0068] Referring to Figures 2 and 4, the battery immersion device also includes a guide rail 800 and multiple carriers 900. The guide rail 800 is disposed in the pressure chamber 110 and extends from the inlet of the pressure chamber 110 to the outlet of the pressure chamber 110. Each carrier 900 is slidably connected to the guide rail 800. Each carrier 900 is provided with multiple carrier cavities 910, and each carrier cavity 910 is used for placing the battery.

[0069] In this embodiment, since the battery immersion device of this application includes multiple carriers 900, and each carrier 900 is provided with multiple carrier cavities 910, each carrier cavity 910 is used for placing batteries, the battery immersion device of this application can simultaneously immerse multiple batteries to improve battery production efficiency. Furthermore, since a guide rail 800 is provided in the pressure chamber 110, and the guide rail 800 extends from the inlet of the pressure chamber 110 to the outlet of the pressure chamber 110, each carrier 900 is slidably connected to the guide rail 800. Thus, when a battery is placed on a carrier 900, the carrier 900 can be pushed into the pressure chamber 110 through the slidable connection between the carrier 900 and the guide rail 800, thereby reducing the difficulty of battery handling and improving battery immersion efficiency.

[0070] Referring to Figures 1 and 4, the pressure chamber 100 includes a chamber body 120, a first door 130 and a second door 140. The chamber body 120 is provided with a pressure chamber 110. The first door 130 and the second door 140 are respectively connected to the two ends of the chamber body 120. The guide rail 800 extends from the inlet of the first door 130 to the second door 140.

[0071] In this embodiment, when the battery needs to be immersed, the first door 130 is opened, and the carrier 900 carrying the battery is pushed into the pressure chamber 110 of the chamber 120 through the first door 130 via the guide rail 800. Then, the first door 130 and the second door 140 are closed at the same time to ensure the airtightness of the pressure chamber 110, which facilitates the subsequent immersion of the battery. After the battery is immersed, the second door 140 is opened, and the battery carrying the immersed battery is pushed out of the chamber 120 through the second door 140 via the guide rail 800, so that the immersed battery can enter the subsequent process, and the next batch of batteries to be immersed can enter the pressure chamber 110.

[0072] The battery production equipment involved in the embodiments of this application includes: the battery immersion device described above.

[0073] In the battery production equipment of this application, since the aforementioned battery wetting device can improve the wetting efficiency of the battery, the battery production equipment of this application can have a high production efficiency.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0075] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A battery infiltration device, wherein, include: The pressure chamber (100) is provided with a pressure cavity (110) for placing the battery; A gas buffer assembly (200) includes a gas buffer element (210), a first valve (220), and a second valve (230). The inlet and outlet of the gas buffer element (210) are both connected to the pressure chamber (110). The first valve (220) is located between the inlet of the gas buffer element (210) and the pressure chamber (100), and the second valve (230) is located between the outlet of the gas buffer element (210) and the pressure chamber (100). The gas replenishment assembly (300) includes a gas replenishment component (310) and a third valve (320). The gas replenishment component (310) is disposed on the side of the gas buffer component (210) near the outlet of the gas buffer component (210). The outlet of the gas replenishment component (310) is connected to the pressure chamber (110). The third valve (320) is disposed between the outlet of the gas replenishment component (310) and the pressure chamber (100). The vacuum assembly (400) includes a vacuum pumping component (410) and a fourth valve (420). The vacuum pumping component (410) is disposed on the side of the gas buffer (210) near the inlet of the gas buffer (210). The inlet of the vacuum pumping component (410) is connected to the pressure chamber (110). The fourth valve (420) is disposed between the inlet of the vacuum pumping component (410) and the pressure chamber (100).

2. The battery infiltration device of claim 1, wherein, The battery immersion device further includes a first pipe (510), the two ends of which are connected to the inlet of the gas buffer (210) and the pressure chamber (110) respectively, and the first valve (220) is disposed on the first pipe (510).

3. The battery infiltration device of claim 2, wherein, The battery immersion device further includes a second pipe (520), the two ends of which are connected to the outlet of the gas buffer (210) and the pressure chamber (110) respectively, and the second valve (230) is disposed on the second pipe (520).

4. The battery infiltration device of claim 3, wherein, The battery immersion device further includes a third pipe (530) and a fifth valve (610), and the fifth valve (610) is disposed between the second valve (230) and the pressure chamber (110). The second valve (230) is disposed on one end of the second pipe (520) near the gas buffer (210). The two ends of the third pipe (530) are respectively connected to the gas supply component (310) and the second pipe (520), and the connection between the third pipe (530) and the second pipe (520) is disposed between the second valve (230) and the fifth valve (610). The third valve (320) is disposed on the third pipe (530).

5. The battery infiltration device of claim 2, wherein, The first pipeline (510) has a first branch (511) and a second branch (512); One end of the first branch (511) and one end of the second branch (512) are connected to the inlet of the gas buffer (210). The other end of the first branch (511) and the other end of the second branch (512) are connected to the pressure chamber (110). The vacuum pump (410) and the fourth valve (420) are installed on the second branch (512), and the first valve (220) is installed on the first branch (511).

6. The battery wetting apparatus according to claim 5, wherein, The battery immersion device further includes a sixth valve (620), which is disposed on the first pipe (510) and is located at any position between the junction of the first branch (511) and the second branch (512) near the pressure chamber (110) and the pressure chamber (110).

7. The battery immersion apparatus according to any one of claims 1-6, wherein, The battery immersion device also includes a heating component (700) disposed within the pressure chamber (110).

8. The battery wetting apparatus according to claim 7, wherein, The heating assembly (700) includes a heating element (710) disposed within the pressure chamber (110).

9. The battery wetting apparatus according to claim 8, wherein, The heating assembly (700) also includes a temperature measuring element (720), which is disposed in the pressure chamber (110).

10. The battery wetting apparatus according to claim 9, wherein, The heating element (710) and the temperature measuring element (720) are respectively disposed on opposite sides of the pressure chamber (110).

11. The battery wetting apparatus according to claim 8, wherein, The heating assembly (700) further includes a heat insulation element (730), which is disposed within the pressure chamber (110) and between the heating element (710) and the cavity wall of the pressure chamber (110).

12. The battery immersion apparatus according to any one of claims 1-6, wherein, The battery immersion device also includes a guide rail (800) disposed within the pressure chamber (110) and extending from the inlet of the pressure chamber (110) to the outlet of the pressure chamber (110).

13. The battery wetting apparatus according to claim 12, wherein, The battery immersion device also includes a plurality of carriers (900), each of which is slidably connected to the guide rail (800), and each of which is provided with a plurality of carrier cavities (910), each of which is used for placing the battery.

14. The battery wetting apparatus according to claim 12, wherein, The pressure chamber (100) includes a body (120), a first door (130) and a second door (140). The body (120) is provided with the pressure chamber (110). The first door (130) and the second door (140) are respectively connected to the two ends of the body (120). The guide rail (800) extends from the inlet of the first door (130) to the second door (140).

15. A battery manufacturing apparatus, wherein, include: The battery immersion apparatus as described in any one of claims 1-14.

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