Quantitative filling equipment for battery lithium supplement agent

Abstract

The utility model discloses quantitative filling equipment for a battery lithium supplement agent in the technical field of filling. The quantitative filling equipment comprises a filling pipe, a sealing plug is arranged in the filling pipe, one end of the sealing plug is connected with a telescopic rod, one end of the telescopic rod is connected with a first crank rod, and the other side of the first crank rod is connected with a second crank rod; the sealing plug is telescopically adjusted in the filling pipe to push out the lithium supplementing agent, and when the sealing plug reciprocates, the lithium supplementing agent in the storage hopper can be sucked into the filling pipe and then pushed out, so that automatic treatment is realized; and the telescopic rod is adjusted through a first crank rod and a second crank rod, so that when the servo motor drives the rotating disc to rotate, the first crank rod and the second crank rod can rotate, that is, the rotating disc rotates by one circle, and quantitative filling treatment of the lithium supplementing agent is achieved.

Description

Technical Field

[0001] This utility model relates to the field of filling technology, and in particular to a quantitative filling device for battery lithium replenishment agents. Background Technology

[0002] Lithium replenishment technology is also an important means to improve the energy density of lithium-ion batteries. During the first charge of a lithium-ion battery, the organic electrolyte will reduce and decompose on the surface of the negative electrode, such as graphite, forming a solid electrolyte interface film. This permanently consumes a large amount of lithium from the positive electrode, resulting in a low coulombic efficiency in the first cycle and reducing the capacity and energy density of the lithium-ion battery. In addition, processes such as the deactivation of negative electrode material particles due to detachment and the irreversible deposition of lithium metal also consume the active lithium of the positive electrode, reducing the battery's capacity and energy density.

[0003] Lithium replenishment, also known as "pre-lithiation" or "pre-intercalation," involves adding lithium to the battery before it begins operation to replenish lithium ions. Pre-lithiation replenishes lithium in the electrode materials, offsetting irreversible lithium loss and thus increasing the battery's overall capacity and energy density.

[0004] Existing filling equipment typically uses servo cylinders or servo motors for direct propulsion to replenish lithium in batteries, which cannot achieve precise quantitative filling of batteries. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a quantitative filling device for battery lithium replenishment agents.

[0006] The purpose of this utility model is achieved as follows: A quantitative filling device for battery lithium replenishment includes a filling tube, a sealing plug is movably provided inside the filling tube, a telescopic rod is fixedly connected to one end of the sealing plug, a first crank rod is movably connected to one end of the telescopic rod, a second crank rod is movably connected to the other side of the first crank rod, and the other end of the second crank rod is movably connected to a turntable, which is driven by a servo motor.

[0007] Furthermore, a sealing plate is threaded to one end of the filling tube, and a through hole is provided in the middle of the sealing plate, within which the telescopic rod moves.

[0008] Furthermore, a tapered discharge pipe is fixedly provided at the other end of the filling pipe, and a storage hopper is connected to the upper part of the end of the filling pipe.

[0009] Furthermore, a connecting arc plate is fixedly provided on one side of the sealing plate, and a handle is fixedly provided at the bottom of the connecting arc plate.

[0010] Furthermore, the first crank rod, the second crank rod, and the turntable are movably disposed between the connecting arc plate, the shaft on one side of the turntable passes through the connecting arc plate, and the servo motor is fixed to the outside of one side of the connecting arc plate by a mounting plate.

[0011] Furthermore, the first crank rod is movably connected to one end of the telescopic rod via a connecting pin, and one end of the first crank rod is also movably connected to one end of the second crank rod via a connecting pin. One end of the second crank rod is also eccentrically movably connected to one side of the turntable via a connecting pin.

[0012] Furthermore, a rechargeable battery is installed inside the handle, and a start button is provided on the upper part of the handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In use, this utility model uses a servo motor as a power source, which drives the sealing plug to extend and retract in the filling tube to push out the lithium replenishing agent. When the sealing plug reciprocates, it can draw the lithium replenishing agent inside the storage hopper into the filling tube and then push it out, thus achieving automated processing.

[0015] The telescopic rod is adjusted via the first crank and the second crank, so that when the servo motor drives the turntable to rotate, the first crank and the second crank can rotate, so that the telescopic rod can maintain balanced and stable telescopic adjustment, and can automatically complete the process of drawing lithium replenishing agent into the filling tube and then pushing it out. That is, the turntable rotates once, and the lithium replenishing agent is quantitatively filled. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a partial structural schematic diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the crank linkage of this utility model.

[0020] Figure 4This is a side view of the filling tube of this utility model.

[0021] In the diagram: 1. Filling tube; 2. Connecting arc plate; 3. Handle; 4. Telescopic rod; 5. Sealing plug; 6. First crank rod; 7. Second crank rod; 8. Connecting pin; 9. Turntable; 10. Servo motor; 11. Mounting plate; 12. Sealing plate; 13. Through hole; 14. Storage hopper; 15. Discharge tube; 16. Start button. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4 The battery lithium replenishment quantitative filling equipment shown includes a filling tube 1, a sealing plug 5 is movably provided inside the filling tube 1, a telescopic rod 4 is fixedly connected to one end of the sealing plug 5, a first crank rod 6 is movably connected to one end of the telescopic rod 4, a second crank rod 7 is movably connected to the other side of the first crank rod 6, and the other end of the second crank rod 7 is movably connected to a turntable 9, which is driven by a servo motor 10.

[0024] In this embodiment, preferably, one end of the filling tube 1 is threadedly connected to a sealing plate 12, and a through hole 13 is opened in the middle of the sealing plate 12, and the telescopic rod 4 is movable in the through hole 13.

[0025] It should be noted that the sealing plate 12 is connected by threads, which facilitates disassembly and installation, and makes it easy to repair and replace the sealing plug 5. In addition, the through hole 13 is designed to facilitate the extension and retraction adjustment of the telescopic rod 4, so as to push and pull the sealing plug 5 and draw in and push out the battery lithium replenishment.

[0026] In this embodiment, preferably, a tapered discharge pipe 15 is fixedly provided at the other end of the filling pipe 1, and a storage hopper 14 is connected to the upper part of the end of the filling pipe 1.

[0027] It should be noted that the conical discharge pipe 15 is designed to facilitate connection with the lithium battery, making it easy to push the lithium replenishing agent into the lithium battery, and the storage hopper 14 is designed to facilitate the storage of the lithium replenishing agent.

[0028] In this embodiment, preferably, a connecting arc plate 2 is fixedly provided on one side of the sealing plate 12, and a handle 3 is fixedly provided at the bottom of the connecting arc plate 2;

[0029] It should be noted that the design of the connecting arc plate 2 facilitates the connection between the filling tube 1 and the handle 3, making the equipment easy to hold and convenient for replenishing lithium.

[0030] In this embodiment, preferably, the first crank 6, the second crank 7 and the turntable 9 are movably arranged between the connecting arc plate 2, the shaft on one side of the turntable 9 passes through the connecting arc plate 2, and the servo motor 10 is fixed to the outside of one side of the connecting arc plate 2 by the mounting plate 11.

[0031] It should be noted that the servo motor 10 is installed through the mounting plate 11 to maintain the operational stability of the servo motor 10. Furthermore, the first crank 6, the second crank 7, and the turntable 9 are positioned between the connecting arc plate 2, which prevents the first crank 6, the second crank 7, and the turntable 9 from causing injury to the operator during operation.

[0032] In this embodiment, preferably, the first crank rod 6 is movably connected to one end of the telescopic rod 4 via a connecting pin 8, and one end of the first crank rod 6 is also movably connected to one end of the second crank rod 7 via a connecting pin 8, and one end of the second crank rod 7 is also eccentrically movably connected to one side of the turntable 9 via a connecting pin 8.

[0033] It should be noted that the connecting pin 8 is designed to enable a movable connection between the first crank lever 6, the second crank lever 7, and the turntable 9, maintaining rotation during the drive process.

[0034] In this embodiment, preferably, a rechargeable battery is installed inside the handle 3, and a start button 16 is provided on the upper part of the handle 3.

[0035] It should be noted that the handle 3 is used to install the rechargeable battery, which facilitates the driving of the servo motor 10 and provides power to the device. The start button 16 is used to control the on / off power supply of the rechargeable battery to the servo motor 10.

[0036] The specific operational procedures for this application are as follows:

[0037] In use, the lithium replenisher is first added to the storage hopper 14, or connected to the storage hopper 14 via a pipe to achieve real-time delivery of the lithium replenisher. Then, the discharge pipe 15 at the front end of the filling tube 1 is engaged with the lithium battery. Then, by pressing the start button 16, the rechargeable battery inside the handle 3 can supply power to the servo motor 10. When the servo motor 10 is running, it rotates the turntable 9, which drives the telescopic rod 4 to reciprocate through the first crank 6 and the second crank 7. This, in turn, drives the sealing plug 5 to reciprocate inside the filling tube 1. When the sealing plug 5 reciprocates, pulling the sealing plug 5 can draw the lithium replenisher from the storage hopper 14 into the filling tube 1, and pushing the sealing plug 5 can push the lithium replenisher out of the filling tube 1, achieving automated processing. Through the process of suction and ejection, i.e., the turntable 9 rotates once, the lithium replenisher is quantitatively filled.

[0038] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A quantitative filling device for battery lithium replenishment agent, characterized in that: The filling tube (1) is provided with a sealing plug (5) inside. One end of the sealing plug (5) is fixedly connected to a telescopic rod (4). One end of the telescopic rod (4) is movably connected to a first crank rod (6). The other side of the first crank rod (6) is movably connected to a second crank rod (7). The other end of the second crank rod (7) is movably connected to a turntable (9). The turntable (9) is driven by a servo motor (10).

2. The battery lithium replenishment agent quantitative filling equipment according to claim 1, characterized in that: One end of the filling tube (1) is threadedly connected to a sealing plate (12), and a through hole (13) is provided in the middle of the sealing plate (12). The telescopic rod (4) is movable within the through hole (13).

3. The battery lithium replenishment agent quantitative filling equipment according to claim 1, characterized in that: The other end of the filling pipe (1) is fixedly provided with a tapered discharge pipe (15), and the upper part of the end of the filling pipe (1) is connected to a storage hopper (14).

4. The battery lithium replenishment agent quantitative filling equipment according to claim 2, characterized in that: A connecting arc plate (2) is fixedly provided on one side of the sealing plate (12), and a handle (3) is fixedly provided at the bottom of the connecting arc plate (2).

5. The battery lithium replenishment agent quantitative filling equipment according to claim 4, characterized in that: The first crank rod (6), the second crank rod (7) and the turntable (9) are movably disposed between the connecting arc plate (2). The shaft on one side of the turntable (9) passes through the connecting arc plate (2). The servo motor (10) is fixed to the outside of the connecting arc plate (2) on one side by a mounting plate (11).

6. The battery lithium replenishment agent quantitative filling equipment according to claim 1, characterized in that: The first crank rod (6) is movably connected to one end of the telescopic rod (4) via a connecting pin (8). One end of the first crank rod (6) is also movably connected to one end of the second crank rod (7) via a connecting pin (8). One end of the second crank rod (7) is also eccentrically connected to one side of the turntable (9) via a connecting pin (8).

7. The battery lithium replenishment agent quantitative filling equipment according to claim 4, characterized in that: The handle (3) is equipped with a rechargeable battery, and the upper part of the handle (3) is provided with a start button (16).

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