Battery liquid injection device

Abstract

The utility model relates to the technical field of batteries, in particular to a battery liquid injection device. The battery liquid injection device comprises a first conveying line, a liquid injection mechanism, a first transfer mechanism, a second transfer mechanism and a standing mechanism, the first conveying line is provided with a liquid injection station, a first end and a second end, a liquid injection mechanism is arranged on the liquid injection station, and the first conveying line is used for driving the battery cell to move between the first end and the liquid injection station and between the liquid injection station and the second end; the first transferring mechanism is positioned on one side of the first conveying line and is used for transferring the battery cells into or out of the first conveying line; the standing mechanism is located on the other side of the first conveying line. The second transferring mechanism is arranged between the first conveying line and the standing mechanism, and the second transferring mechanism is used for transferring the battery cells at the second end of the first conveying line to the standing mechanism and transferring the battery cells in the standing mechanism to the first end of the first conveying line. The battery liquid injection device can enable the battery cell to effectively stand for a long time in the standing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and particularly relates to a battery liquid injection device. Background Art

[0002] During the battery production process, an appropriate amount of electrolyte needs to be injected into the battery cell before activation and then the battery cell is left standing for absorption. Since the battery cell cannot complete a large amount of electrolyte injection in a short time, generally, the battery cell needs to be injected with liquid at least twice.

[0003] Currently, the battery liquid injection device generally includes a first liquid injection station, a standing station and a second liquid injection station, and the first liquid injection station, the standing station and the second liquid injection station are connected in sequence. Due to the layout limitation of the battery liquid injection device, the standing time between the two liquid injections of the battery is short, which will cause the electrode plates in the battery to not absorb the electrolyte well. Summary of the Utility Model

[0004] In view of this, the utility model provides a battery liquid injection device, aiming to partially or completely solve the technical problem that the existing battery liquid injection device is limited by the layout, and the standing time between the two liquid injections of the battery is short, resulting in the electrode plates in the battery not absorbing the electrolyte well.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] In a first aspect, an embodiment of the utility model provides a battery liquid injection device, which includes a first conveyor line, a liquid injection mechanism, a first transfer mechanism, a second transfer mechanism and a standing mechanism; the first conveyor line is provided with a liquid injection station, a first end and a second end, the liquid injection mechanism is arranged at the liquid injection station, and the first conveyor line is used to drive the battery cell to move between the first end and the liquid injection station, and between the liquid injection station and the second end; the first transfer mechanism is located on one side of the first conveyor line and is used to transfer the battery cell into or out of the first conveyor line; the standing mechanism is located on the other side of the first conveyor line; the second transfer mechanism is arranged between the first conveyor line and the standing mechanism, and the second transfer mechanism is used to transfer the battery cell at the second end of the first conveyor line to the standing mechanism, and transfer the battery cell in the standing mechanism to the first end of the first conveyor line.

[0007] Optionally, the second transfer mechanism includes a carrier track and a carrier vehicle; the carrier track is arranged between the first conveyor line and the standing mechanism; the carrier vehicle is slidably connected to the carrier track, and the carrier vehicle is used to transfer the battery cell into or out of the first conveyor line, and transfer the battery cell into or out of the standing mechanism.

[0008] Optionally, the carrier track is arranged on the side of the first conveyor line away from the first transfer mechanism, and the extending direction of the carrier track is parallel to the extending direction of the first conveyor line, and the static mechanism is arranged on the side of the carrier track away from the first conveyor line.

[0009] Optionally, the static mechanism is provided with a plurality of static chambers, and the plurality of static chambers are arranged in layers in the vertical direction.

[0010] Optionally, the carrier track includes a first carrier track and a second carrier track. Along the extending direction of the first conveyor line, the first carrier track and the second carrier track are respectively arranged on both sides of the static mechanism; the carrier vehicle includes a first carrier vehicle and a second carrier vehicle, the first carrier vehicle is slidably connected to the first carrier track, and the second carrier vehicle is slidably connected to the second carrier track; one of the first carrier vehicle and the second carrier vehicle is used to transfer the battery cell at the second end of the first conveyor line to the static mechanism, and the other is used to transfer the battery cell in the static mechanism to the first end of the first conveyor line.

[0011] Optionally, the first carrier track and the second carrier track are arranged in parallel, and the extending directions of the first carrier track and the second carrier track are both perpendicular to the extending direction of the first conveyor line.

[0012] Optionally, at least two static mechanisms are provided, the arrangement direction of the first transfer mechanism, the first conveyor line and the static mechanism is the first direction, and at least two static mechanisms are arranged at intervals along the first direction.

[0013] Optionally, at least two liquid injection stations are provided on the first conveyor line, and the at least two liquid injection stations are arranged at intervals in the extending direction of the first conveyor line, and each liquid injection station is provided with one liquid injection mechanism.

[0014] Optionally, the battery liquid injection device further includes a second conveyor line and a battery cell fixing mechanism; the second conveyor line is arranged between the first transfer mechanism and the first conveyor line, the battery cell fixing mechanism is arranged on the second conveyor line, the battery cell fixing mechanism is used to carry and fix the battery cell, and the second conveyor line is used to move the battery cell fixing mechanism carrying the battery cell into or out of the first conveyor line.

[0015] Optionally, two first transfer mechanisms are provided, and the two first transfer mechanisms are arranged at intervals along the extending direction of the second conveyor line; one of the two first transfer mechanisms is used to move the battery cell into the battery cell fixing mechanism, and the other is used to move the battery cell out of the battery cell fixing mechanism.

[0016] Optionally, the battery liquid injection device further includes a heating element. A static chamber for placing the battery cell is provided in the static mechanism, and the heating element is used to heat the static chamber; and / or, the battery liquid injection device further includes a pressurizing element. A static chamber for placing the battery cell is provided in the static mechanism, and the pressurizing element is used to pressurize the static chamber; and / or, a plurality of static chambers are provided in the static mechanism, and the plurality of static chambers are spaced along the extension direction of the first conveyor line.

[0017] In the battery liquid injection device of the present utility model, the first conveyor line drives the battery cell to move between the first end and the liquid injection station, and between the liquid injection station and the second end; the static mechanism is located on the other side of the first conveyor line; the second transfer mechanism is arranged between the first conveyor line and the static mechanism. The second transfer mechanism transfers the battery cell at the second end in the first conveyor line to the static mechanism, and transfers the battery cell in the static mechanism to the first end of the first conveyor line. The battery cell is transferred between the liquid injection mechanism and the static mechanism through the first conveyor line and the second transfer mechanism. Through the setting and adjustment of the first conveyor line and the second transfer mechanism, and the flexible transfer of the battery cell by the second transfer mechanism, the production rhythm can be adjusted, and the battery cell can be effectively static for a long time in the static mechanism, and the electrode sheets in the battery can better absorb the electrolyte.

[0018] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically gives the specific embodiments of the present utility model. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments.

[0020] Figure 1 It is a layout schematic diagram of the battery liquid injection device according to the first embodiment of the present utility model;

[0021] Figure 2 It is a layout schematic diagram of the battery liquid injection device according to the second embodiment of the present utility model;

[0022] Figure 3 It is a layout schematic diagram of the battery liquid injection device according to the third embodiment of the present utility model.

[0023] Description of the Reference Numerals:

[0024] 10 - First conveyor line; 11 - Liquid injection station; 12 - First end; 13 - Second end; 20 - Liquid injection mechanism; 30 - First transfer mechanism; 40 - Second transfer mechanism; 41 - Carrying track; 42 - Carrier vehicle; 43 - First carrying track; 44 - Second carrying track; 45 - First carrier vehicle; 46 - Second carrier vehicle; 50 - Static mechanism; 51 - Static chamber; 60 - Second conveyor line; 70 - Cell fixing mechanism. Detailed implementation

[0025] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0026] An embodiment of the present application discloses a battery liquid injection device. Refer to Figures 1 to 3 , which respectively show layout diagrams of three battery liquid injection devices. This battery liquid injection device is used to inject electrolyte into the battery cells.

[0027] Refer to Figure 1 As shown, this battery liquid injection device includes a first conveyor line 10, a liquid injection mechanism 20, a first transfer mechanism 30, a second transfer mechanism 40, and a static mechanism 50; the first conveyor line 10 is provided with a liquid injection station 11, a first end 12, and a second end 13. The liquid injection mechanism 20 is arranged at the liquid injection station 11. The first conveyor line 10 is used to drive the battery cells to move between the first end 12 and the liquid injection station 11, and between the liquid injection station 11 and the second end 13; the first transfer mechanism 30 is located on one side of the first conveyor line 10 and is used to move the battery cells into or out of the first conveyor line 10; the static mechanism 50 is located on the other side of the first conveyor line 10; the second transfer mechanism 40 is arranged between the first conveyor line 10 and the static mechanism 50, and the second transfer mechanism 40 is used to transfer the battery cells at the second end 13 of the first conveyor line 10 to the static mechanism 50, and to transfer the battery cells in the static mechanism 50 to the first end 12 of the first conveyor line 10.

[0028] In the embodiment of the present application, the first conveyor line 10 is used to convey the battery cells, that is, the first conveyor line 10 is used to drive the battery cells to move between the first end 12 and the liquid injection station 11, and between the liquid injection station 11 and the second end 13.

[0029] The liquid injection mechanism 20 is used to inject electrolyte into the battery cells. When the battery cells are located at the liquid injection station 11 of the first conveyor line 10, the liquid injection mechanism 20 injects electrolyte into the battery cells.

[0030] The first transfer mechanism 30 is used to transfer the battery cells into or out of the first conveyor line 10, so as to realize the feeding and discharging of the battery cells on the first conveyor line 10.

[0031] The standing mechanism 50 is used to stand the battery cells injected with electrolyte to complete the infiltration of the electrolyte in the battery cells. Because, after the battery cells are injected with electrolyte, the electrolyte flows in the battery cells and occupies the space volume of the battery cells, which takes a certain amount of time. Therefore, after the battery cells are injected with electrolyte, standing after injection is required to cooperate to complete the infiltration of the electrolyte.

[0032] The second transfer mechanism 40 is arranged between the first conveyor line 10 and the standing mechanism 50. The second transfer mechanism 40 is used to transfer the battery cells that have completed one injection at the second end 13 in the first conveyor line 10 to the standing mechanism 50, and transfer the battery cells that have completed standing in the standing mechanism 50 to the first end 12 of the first conveyor line 10.

[0033] When the battery injection device of the embodiment of the present application is in use, the first transfer mechanism 30 transfers the battery cells onto the first conveyor line 10. The first conveyor line 10 drives the battery cells to move. When the battery cells move to the injection station 11, the injection mechanism 20 at the injection station 11 injects the battery cells. The battery cells that have completed injection at the injection station 11 move to the second end 13. The second transfer mechanism 40 transfers the battery cells that have completed injection at the second end 13 to the standing mechanism 50, and the battery cells stand in the standing mechanism 50. After the second transfer mechanism 40 removes the battery cells that have completed standing in the standing mechanism 50, it transfers them onto the first end 12 of the first conveyor line 10. The battery cells are moved again on the first conveyor line 10 to the injection station 11 for injection, or are removed from the first conveyor line 10 through the first transfer mechanism 30.

[0034] In the battery injection device of the embodiment of the present application, the first conveyor line 10 drives the battery cells to move between the first end 12 and the injection station 11, and between the injection station 11 and the second end 13; the standing mechanism 50 is located on the other side of the first conveyor line 10; the second transfer mechanism 40 is arranged between the first conveyor line 10 and the standing mechanism 50. The second transfer mechanism 40 transfers the battery cells at the second end 13 in the first conveyor line 10 to the standing mechanism 50, and transfers the battery cells in the standing mechanism 50 to the first end 12 of the first conveyor line 10. The battery cells are transferred between the injection mechanism 20 and the standing mechanism 50 through the first conveyor line 10 and the second transfer mechanism 40. Through the setting and adjustment of the first conveyor line 10 and the second transfer mechanism 40, and the flexible transfer of the battery cells by the second transfer mechanism 40, the production beat can be adjusted, and the battery cells can be effectively stood for a long time in the standing mechanism 50, and the electrode plates in the battery can better absorb the electrolyte.

[0035] Optionally, refer to Figure 1As shown, the second transfer mechanism 40 includes a carrying track 41 and a carrying trolley 42; the carrying track 41 is arranged between the first conveyor line 10 and the stationary mechanism 50; the carrying trolley 42 is slidably connected to the carrying track 41, and the carrying trolley 42 is used to move the battery cells into or out of the first conveyor line 10, and to move the battery cells into or out of the stationary mechanism 50.

[0036] When the battery liquid injection device of the embodiment of the present application is in use, the first conveyor line 10 drives the battery cells to move between the first end 12 and the liquid injection station 11, and between the liquid injection station 11 and the second end 13, wherein the battery cells at the second end 13 are the battery cells that have completed liquid injection at the liquid injection station 11, and the carrier 42 is used to move the battery cells at the second end 13 out of the first conveyor line 10 and move them into the stationary mechanism 50. The carrier 42 moves the battery cells that have completed stationary in the stationary mechanism 50 out of the stationary mechanism 50 and then moves them to the first end 12 of the first conveyor line 10, and the battery cells are moved to the liquid injection station 11 on the first conveyor line 10 again for liquid injection, or are moved out of the first conveyor line 10 through the first transfer mechanism 30.

[0037] In the embodiment of the present application, the carrier 42 can be accurately positioned and moved on the carrier track 41 to realize the automated mobile storage and retrieval of the battery cells, which has the advantage of high efficiency; and can adapt to multiple injections of the battery cells and the coordinated movement during multiple injections.

[0038] Optional, see Figure 1 As shown, the carrying track 41 is arranged on the side of the first conveyor line 10 away from the first transfer mechanism 30, and the extension direction of the carrying track 41 is parallel to the extension direction of the first conveyor line 10, and the stationary mechanism 50 is arranged on the side of the carrying track 41 away from the first conveyor line 10. In the embodiment of the present application, the moving direction of the carrier 42 is parallel to the extension direction of the first conveyor line 10. In the direction perpendicular to the extension direction of the carrying track 41, that is, in the first direction X, the first transfer mechanism 30, the first conveyor line 10, the carrying track 41 and the stationary mechanism 50 are arranged in sequence.

[0039] Optionally, the stationary mechanism 50 is provided with a plurality of stationary chambers 51, and the plurality of stationary chambers 51 are stacked in a vertical direction. When the battery cell is in the stationary mechanism 50, the battery cell can move in the plurality of stationary chambers 51 in a vertical direction.

[0040] At this time, the carrier 42 moves the battery cell with completed injection at the second end 13 out of the first conveyor line 10 and moves it into a corresponding static chamber 51. The carrier 42 moves the battery cell that has completed static in the static chamber 51 or other static chambers 51 out and then moves it to the first end 12 of the first conveyor line 10. The provision of multiple static chambers 51 allows the battery cell to have a longer static time in the static mechanism 50, and the pole piece in the battery can better absorb the electrolyte.

[0041] Optionally, referring to Figure 2 As shown, the carrier track 41 includes a first carrier track 43 and a second carrier track 44. Along the extending direction of the first conveying line 10, the first carrier track 43 and the second carrier track 44 are respectively arranged on both sides of the standing mechanism 50; the carrier vehicle 42 includes a first carrier vehicle 45 and a second carrier vehicle 46. The first carrier vehicle 45 is slidably connected to the first carrier track 43, and the second carrier vehicle 46 is slidably connected to the second carrier track 44; one of the first carrier vehicle 45 and the second carrier vehicle 46 is used to transfer the battery cells at the second end 13 of the first conveying line 10 to the standing mechanism 50, and the other is used to transfer the battery cells in the standing mechanism 50 to the first end 12 of the first conveying line 10.

[0042] In the battery filling device according to the embodiment of the present application, different carrier vehicles are used to move the battery cells into the standing mechanism 50 and move the battery cells out of the standing mechanism 50, which can increase the efficiency of moving the battery cells in and out, and thus improve the production beat.

[0043] Optionally, referring to Figure 2 As shown, the first carrier track 43 and the second carrier track 44 are arranged in parallel, and the extending directions of the first carrier track 43 and the second carrier track 44 are both perpendicular to the extending direction of the first conveying line 10.

[0044] Further referring to Figure 2 As shown, the first end 12 of the first conveying line 10 is correspondingly arranged with one of the first carrier track 43 and the second carrier track 44, and the second end 13 of the first conveying line 10 is correspondingly arranged with the other of the first carrier track 43 and the second carrier track 44.

[0045] Optionally, there are at least two standing mechanisms 50. The arrangement direction of the first transfer mechanism 30, the first conveying line 10 and the standing mechanism 50 is the first direction X, and at least two standing mechanisms 50 are arranged at intervals along the first direction X. At this time, the layout of the battery filling device is compact, so as to save the floor area of the battery filling device.

[0046] Optionally, a plurality of standing cavities 51 are provided in the standing mechanism 50, and the plurality of standing cavities 51 are arranged at intervals along the extending direction of the first conveying line 10. At this time, along the extending direction of the first conveying line 10, the two ends of the standing mechanism 50 are respectively the entrance and the exit of the standing mechanism 50.

[0047] Optionally, at least two filling stations 11 are provided on the first conveying line 10, and the at least two filling stations 11 are arranged at intervals in the extending direction of the first conveying line 10. Each filling station 11 is provided with a filling mechanism 20.

[0048] In the above structure of the embodiment of the present application, the first conveyor line 10 can drive the battery cells to move on at least two liquid injection stations 11, and the battery cells can be subjected to at least two liquid injections, solving the problem that the electrolyte cannot be injected into the battery cells at one time.

[0049] Optionally, the liquid injection amount of the liquid injection mechanism 20 on each liquid injection station 11 is set according to the usage requirements, and the embodiment of the present application does not make specific limitations in this regard. For example, there are two liquid injection stations 11 and two liquid injection mechanisms 20. Among them, the liquid injection mechanism 20 that first injects liquid into the battery cell injects 50%-80% of the total amount of electrolyte required by the battery cell into the battery cell; the liquid injection mechanism 20 that injects liquid into the battery cell again injects 20%-50% of the total amount of electrolyte required by the battery cell into the battery cell. The two liquid injection mechanisms 20 jointly inject the total amount of electrolyte required by the battery cell.

[0050] Optionally, the battery liquid injection device further includes a second conveyor line 60 and a battery cell fixing mechanism 70; the second conveyor line 60 is arranged between the first transfer mechanism 30 and the first conveyor line 10, and the battery cell fixing mechanism 70 is arranged on the second conveyor line 60. The battery cell fixing mechanism 70 is used to carry and fix the battery cell, and the second conveyor line 60 is used to move the battery cell fixing mechanism 70 carrying the battery cell into or out of the first conveyor line 10.

[0051] In the embodiment of the present application, the battery cell fixing mechanism 70 is provided to carry and fix the battery cell, so as to prevent the battery cell from tilting during the processes of moving, liquid injection, standing, etc.; and to protect the battery cell to avoid damage to the battery cell during transportation. The embodiment of the present application does not make specific limitations on the battery cell fixing mechanism 70. The battery cell fixing mechanism 70 is, for example, a fixing mechanism such as a tray.

[0052] In the embodiment of the present application, the first transfer mechanism 30 is used to transfer the battery cell into the battery cell fixing mechanism 70, and the second conveyor line 60 transfers the battery cell fixing mechanism 70 carrying the battery cell into the first conveyor line 10. The second conveyor line 60 transfers the battery cell fixing mechanism 70 in the first conveyor line 10 out of the first conveyor line 10, and the first transfer mechanism 30 is used to transfer the battery cell out of the battery cell fixing mechanism 70.

[0053] In the embodiment of the present application, the structure of the second conveyor line 60 for moving the battery cell fixing mechanism 70 into or out of the first conveyor line 10 is set according to the usage requirements. For example, it is realized by utilizing the conveying characteristics of the roller conveyor line, or by using the lateral transfer mechanism on the second conveyor line 60 (the lateral transfer mechanism is a prior mechanism, and the embodiment of the present application does not make specific limitations in this regard).

[0054] Optionally, refer to Figures 1 to 3As shown, there are two first transfer mechanisms 30, and the two first transfer mechanisms 30 are arranged at intervals along the extension direction of the second conveyor line 60; one of the two first transfer mechanisms 30 is used to transfer the battery cells into the battery cell fixing mechanism 70, and the other is used to transfer the battery cells in the battery cell fixing mechanism 70 out.

[0055] In the embodiment of the present application, one of the two first transfer mechanisms 30 is used to transfer the battery cells into the battery cell fixing mechanism 70, and the other is used to transfer the battery cells in the battery cell fixing mechanism 70 out, that is, the feeding and discharging of the battery cells are respectively realized by the two first transfer mechanisms 30 to improve the production rhythm of the battery injection device.

[0056] In the embodiment of the present application, the first transfer mechanism 30 can be selected according to the use requirements. For example, the first transfer mechanism 30 is a loading and unloading robot.

[0057] Optionally, in an embodiment, the battery injection device further includes a heating element. There is a static chamber 51 for placing the battery cells in the static mechanism 50, and the heating element is used to heat the static chamber 51. At this time, the static mechanism 50 can realize the high-temperature static of the battery cells. After the heating element heats the static chamber 51, the temperature in the static chamber 51 meets the use requirements. For example, the temperature in the static chamber 51 is 30°C - 75°C.

[0058] Optionally, in an embodiment, the battery injection device further includes a pressurizing element. There is a static chamber 51 for placing the battery cells in the static mechanism 50, and the pressurizing element is used to pressurize the static chamber 51. At this time, the static mechanism 50 can realize the high-pressure static of the battery cells. After the pressurizing element pressurizes the static chamber 51, the pressure in the static chamber 51 meets the use requirements.

[0059] Optionally, in another embodiment, the battery injection device does not have a heating element and a pressurizing element. At this time, the static mechanism 50 performs normal temperature and normal pressure static on the battery cells.

[0060] Optionally, the static mechanism 50 is at least one of a vertical tunnel static mechanism and a horizontal tunnel static mechanism. In practical applications, the battery injection device can select a suitable static mechanism 50 according to requirements such as battery cell static requirements, site layout requirements, and production rhythm requirements.

[0061] Optionally, in the first specific embodiment, refer to Figure 1As shown in the figure, the battery liquid injection device includes a second conveying line 60, a first conveying line 10, two liquid injection mechanisms 20, two first transfer mechanisms 30, a second transfer mechanism 40 and a static placement mechanism 50. The second transfer mechanism 40 includes a carrier track 41 and a carrier vehicle 42. The static placement mechanism 50 is provided with a plurality of static placement cavities 51, and the plurality of static placement cavities 51 are stacked in the vertical direction. In the direction perpendicular to the extending direction of the first conveying line 10, that is, in the first direction X, the first transfer mechanism 30, the second conveying line 60, the first conveying line 10, the carrier track 41, and the static placement mechanism 50 are arranged in sequence. The second conveying line 60, the first conveying line 10, and the carrier track 41 are respectively parallel. Taking Figure 1 the first transfer mechanism 30 on the right side in the figure for feeding and the first transfer mechanism 30 on the left side for discharging as an example for illustration.

[0062] The first transfer mechanism 30 on the right side loads the battery cells conveyed from the upstream into the battery cell fixing mechanism 70. The second conveying line 60 moves the battery cell fixing mechanism 70 carrying the battery cells to the liquid injection station 11 on the right side of the first conveying line 10, and the liquid injection mechanism 20 on the right side injects part of the electrolyte into the battery cells. Then, the first conveying line 10 conveys the battery cell fixing mechanism 70 carrying the battery cells after the first liquid injection to the second end 13. The carrier vehicle 42 moves on the carrier track 41. When the carrier vehicle 42 moves to the second end 13, it removes the battery cell fixing mechanism 70 from the first conveying line 10 and moves it into the static placement mechanism 50, and the battery cells after the first liquid injection are statically placed in the static placement mechanism 50.

[0063] The carrier vehicle 42 removes the battery cell fixing mechanism 70 carrying the statically placed battery cells from the static placement mechanism 50 and moves it to the first end 12 of the first conveying line 10. The first conveying line 10 moves the battery cell fixing mechanism 70 to the liquid injection station 11 on the left side, and the liquid injection mechanism 20 on the left side injects the remaining part of the electrolyte into the battery cells. After the first conveying line 10 removes the battery cell fixing mechanism 70 from the liquid injection station 11 on the left side, the second conveying line 60 removes the battery cell fixing mechanism 70 carrying the battery cells after the second liquid injection from the first conveying line 10 and moves it to the second conveying line 60. The first transfer mechanism 30 on the left side takes out the battery cells from the battery cell fixing mechanism 70 and places them on the conveying line for downstream conveyance. The second conveying line 60 moves the empty battery cell fixing mechanism 70 to the right side of the second conveying line 60 so that the first transfer mechanism 30 on the right side can load the battery cells into the battery cell fixing mechanism 70 again.

[0064] Optionally, in the second specific embodiment, refer to Figure 2As shown in the figure, the battery liquid injection device includes a second conveying line 60, a first conveying line 10, two liquid injection mechanisms 20, two first transfer mechanisms 30, a second transfer mechanism 40 and a static mechanism 50. The second transfer mechanism 40 includes a first carrier track 43, a second carrier track 44, a first carrier vehicle 45 and a second carrier vehicle 46. The static mechanism 50 is provided with a plurality of static chambers 51, and the plurality of static chambers 51 are arranged at intervals along the extending direction of the first conveying line 10. In the direction perpendicular to the extending direction of the first conveying line 10, that is, the first direction X, the first transfer mechanism 30, the second conveying line 60, the first conveying line 10, and the static mechanism 50 are arranged in sequence. The second conveying line 60 and the first conveying line 10 are parallel, the first carrier track 43 and the second carrier track 44 are respectively arranged along the first direction X, and the first conveying line 10 and the static mechanism 50 are respectively located between the first carrier track 43 and the second carrier track 44. Taking Figure 2 the first transfer mechanism 30 on the right side in the figure for feeding and the first transfer mechanism 30 on the left side for discharging as an example for illustration.

[0065] The first transfer mechanism 30 on the right side loads the battery cells conveyed from the upstream into the battery cell fixing mechanism 70. The second conveying line 60 moves the battery cell fixing mechanism 70 carrying the battery cells to the liquid injection station 11 on the right side of the first conveying line 10, and the liquid injection mechanism 20 on the right side injects part of the electrolyte into the battery cells. Then, the first conveying line 10 conveys the battery cell fixing mechanism 70 carrying the battery cells after the first liquid injection to the second end 13. The second carrier vehicle 46 moves on the second carrier track 44. When the second carrier vehicle 46 moves to the second end 13, it removes the battery cell fixing mechanism 70 from the first conveying line 10 and moves it into the entrance on the right side of the static mechanism 50, and the battery cells after the first liquid injection are static in the static mechanism 50.

[0066] The first carrier vehicle 45 removes the battery cell fixing mechanism 70 carrying the static battery cells from the exit on the left side of the static mechanism 50 and moves it to the first end 12 of the first conveying line 10. The first conveying line 10 moves the battery cell fixing mechanism 70 to the liquid injection station 11 on the left side, and the liquid injection mechanism 20 on the left side injects the remaining part of the electrolyte into the battery cells. After the first conveying line 10 removes the battery cell fixing mechanism 70 from the liquid injection station 11 on the left side, the second conveying line 60 removes the battery cell fixing mechanism 70 carrying the battery cells after the second liquid injection from the first conveying line 10 and moves it to the second conveying line 60. The first transfer mechanism 30 on the left side takes out the battery cells from the battery cell fixing mechanism 70 and places them on the conveying line for downstream conveyance. The second conveying line 60 moves the empty battery cell fixing mechanism 70 to the right side of the second conveying line 60 so that the first transfer mechanism 30 on the right side can load the battery cells into the battery cell fixing mechanism 70 again.

[0067] Optionally, in the third specific embodiment, refer to Figure 3In the layout schematic diagram shown, the battery liquid injection device includes a second conveyor line 60, two first conveyor lines 10, two liquid injection mechanisms 20, two first transfer mechanisms 30, two second transfer mechanisms 40 (not shown in the figure), and a static mechanism 50. Along the extension direction of the second conveyor line 60, the two first conveyor lines 10 are respectively arranged on both sides of the second conveyor line 60, and a static mechanism 50 is arranged between the two first conveyor lines 10. Taking Figure 3 the first transfer mechanism 30 on the right side in the figure for feeding and the first transfer mechanism 30 on the left side for discharging as an example for illustration.

[0068] The first transfer mechanism 30 on the right side loads the battery cells conveyed from the upstream into the battery cell fixing mechanism 70. The second conveyor line 60 moves the battery cell fixing mechanism 70 carrying the battery cells to the liquid injection station 11 of the first conveyor line 10 on the right side, and the liquid injection mechanism 20 at the liquid injection station 11 injects a part of the electrolyte into the battery cells. Then, the second transfer mechanism 40 on the right side moves the battery cell fixing mechanism 70 carrying the battery cells after the first liquid injection is completed into the entrance on the right side of the static mechanism 50, and the battery cells after the first liquid injection are static in the static mechanism 50.

[0069] The second transfer mechanism 40 on the left side moves the battery cell fixing mechanism 70 carrying the battery cells after static is completed out of the exit on the left side of the static mechanism 50 and moves it to the liquid injection station 11 of the first conveyor line 10 on the left side. The liquid injection mechanism 20 at the liquid injection station 11 injects the remaining part of the electrolyte into the battery cells. Then, the second conveyor line 60 moves the battery cell fixing mechanism 70 carrying the battery cells after the second liquid injection is completed out of the first conveyor line 10 and moves it to the second conveyor line 60. The first transfer mechanism 30 on the left side takes out the battery cells from the battery cell fixing mechanism 70 and places them on the conveyor line for downstream conveyance. The second conveyor line 60 moves the empty battery cell fixing mechanism 70 to the right side of the second conveyor line 60 so that the first transfer mechanism 30 on the right side can load the battery cells into the battery cell fixing mechanism 70 again.

[0070] In this embodiment, the second transfer mechanism 40 can be a horizontal transfer mechanism (not shown in the figure, the horizontal transfer mechanism is a prior art mechanism, and the embodiments of the present application do not make specific limitations on this).

[0071] In the battery liquid injection device of the embodiment of the present application, the battery cells are transferred between the liquid injection mechanism 20 and the static mechanism 50 through the first conveyor line 10 and the second transfer mechanism 40. Through the setting and adjustment of the first conveyor line 10 and the second transfer mechanism 40, and the fact that the second transfer mechanism 40 can flexibly transfer the battery cells, the adjustment of the production rhythm can be realized, and the battery cells can be effectively static for a long time in the static mechanism 50, and the electrode plates in the battery can better absorb the electrolyte.

[0072] Therefore, the battery liquid injection device according to the embodiments of the present application has a good infiltration effect of the electrolyte inside the battery cell, and has the advantages of simple structure, reasonable layout and high production efficiency.

[0073] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0074] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. For the embodiments of the device, electronic device, computer-readable storage medium and the computer program product containing instructions thereof, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiments.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A battery filling device, characterized in that: The battery liquid injection device comprises a first conveying line (10), a liquid injection mechanism (20), a first transfer mechanism (30), a second transfer mechanism (40) and a stationary mechanism (50); The first conveyor line (10) is provided with a liquid injection station (11), a first end (12) and a second end (13); the liquid injection mechanism (20) is provided on the liquid injection station (11); the first conveyor line (10) is used to drive the battery cell to move between the first end (12) and the liquid injection station (11), and between the liquid injection station (11) and the second end (13); The first transfer mechanism (30) is located on one side of the first conveyor line (10) and is used to move the battery cell into or out of the first conveyor line (10); The stationary mechanism (50) is located on the other side of the first conveying line (10); The second transfer mechanism (40) is arranged between the first conveying line (10) and the stationary mechanism (50), and the second transfer mechanism (40) is used to transfer the battery cells at the second end (13) of the first conveying line (10) to the stationary mechanism (50), and to transfer the battery cells in the stationary mechanism (50) to the first end (12) of the first conveying line (10).

2. The battery liquid injection device according to claim 1, characterized in that: The second transfer mechanism (40) comprises a carrying track (41) and a carrying vehicle (42); The carrying track (41) is arranged between the first conveying line (10) and the stationary mechanism (50); The carrier vehicle (42) is slidably connected to the carrier track (41), and the carrier vehicle (42) is used to move the battery cell into or out of the first conveying line (10), and to move the battery cell into or out of the stationary mechanism (50).

3. The battery liquid filling device according to claim 2, characterized in that: The carrying track (41) is arranged on a side of the first conveying line (10) away from the first transfer mechanism (30), and the extension direction of the carrying track (41) is parallel to the extension direction of the first conveying line (10), and the stationary mechanism (50) is arranged on a side of the carrying track (41) away from the first conveying line (10).

4. The battery liquid filling device according to claim 3, characterized in that: The stationary mechanism (50) is provided with a plurality of stationary chambers (51), and the plurality of stationary chambers (51) are stacked in a vertical direction.

5. The battery liquid filling device according to claim 2, characterized in that: The carrying track (41) comprises a first carrying track (43) and a second carrying track (44), and along the extension direction of the first conveying line (10), the first carrying track (43) and the second carrying track (44) are respectively arranged on both sides of the stationary mechanism (50); The carrier (42) includes a first carrier (45) and a second carrier (46), wherein the first carrier (45) is slidably connected to the first carrier track (43), and the second carrier (46) is slidably connected to the second carrier track (44); one of the first carrier (45) and the second carrier (46) is used to transfer the battery cells at the second end (13) of the first conveyor line (10) to the stationary mechanism (50), and the other is used to transfer the battery cells in the stationary mechanism (50) to the first end (12) of the first conveyor line (10).

6. The battery liquid injection device according to claim 5, characterized in that: The first carrying track (43) and the second carrying track (44) are arranged in parallel, and the extension direction of the first carrying track (43) and the second carrying track (44) are both perpendicular to the extension direction of the first conveying line (10).

7. The battery liquid injection device according to claim 6, characterized in that: At least two of the stationary mechanisms (50) are provided, the first transfer mechanism (30), the first conveyor line (10) and the stationary mechanism (50) are arranged in a first direction (X), and at least two of the stationary mechanisms (50) are arranged at intervals along the first direction (X).

8. The battery liquid injection device according to any one of claims 1 to 7, characterized in that: At least two liquid injection stations (11) are provided on the first conveying line (10), and the at least two liquid injection stations (11) are arranged at intervals in the extension direction of the first conveying line (10), and each of the liquid injection stations (11) is provided with a liquid injection mechanism (20).

9. The battery liquid filling device according to claim 1, characterized in that: The battery liquid injection device also includes a second conveying line (60) and a battery cell fixing mechanism (70); The second conveyor line (60) is arranged between the first transfer mechanism (30) and the first conveyor line (10), the battery cell fixing mechanism (70) is arranged on the second conveyor line (60), the battery cell fixing mechanism (70) is used to carry and fix the battery cell, and the second conveyor line (60) is used to move the battery cell fixing mechanism (70) carrying the battery cell into or out of the first conveyor line (10).

10. The battery liquid filling device according to claim 9, characterized in that: Two first transfer mechanisms (30) are provided, and the two first transfer mechanisms (30) are arranged at intervals along the extension direction of the second conveyor line (60); one of the two first transfer mechanisms (30) is used to move the battery cell into the battery cell fixing mechanism (70), and the other is used to move the battery cell out of the battery cell fixing mechanism (70).

11. The battery liquid filling device according to claim 1, characterized in that: It also includes a heating element, wherein the stationary mechanism (50) is provided with a stationary cavity (51) for placing the battery core, and the heating element is used to heat the stationary cavity (51); And / or, further comprising a pressurizing member, wherein the stationary mechanism (50) is provided with a stationary chamber (51) for placing the battery cell, and the pressurizing member is used to pressurize the stationary chamber (51); And / or, the stationary mechanism (50) is provided with a plurality of stationary chambers (51), and the plurality of stationary chambers (51) are arranged at intervals along the extension direction of the first conveying line (10).

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