Auxiliary device for electrolyte detection

Abstract

The utility model relates to the technical field of lithium ion battery and sodium ion battery testing, and discloses an auxiliary device for electrolyte detection, which comprises a shell, a stock solution box is mounted in the middle of the shell, a guide pipe is mounted at the bottom of the stock solution box, a second electric valve is mounted in the middle of the guide pipe, a buffer tank is mounted at one end of the guide pipe, and a second electric valve is mounted at the other end of the guide pipe. A quantitative pipe is installed at the bottom of the buffer tank, a liquid outlet pipe is fixedly connected to the bottom of the quantitative pipe, a hose is installed at one end of the liquid outlet pipe, a pressure valve is installed at one end of the hose, a liquid injection pipe is fixedly connected to the output end of the pressure valve, a liquid inlet pipe is installed on one side of the stock solution box, and a third electric valve is installed in the middle of the liquid inlet pipe. A connecting pipe is installed on the upper portion of the stock solution box, and one end of the connecting pipe is fixedly connected with the output end of a second pressure pump. According to the utility model, the effect of discharging the electrolyte is realized through the second electric valve, the third electric valve, the second pressure pump, the buffer tank, the quantitative pipe, the liquid outlet pipe, the pressure valve and the liquid injection pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion battery and sodium ion battery testing, in particular to an auxiliary device for electrolyte detection. Background Art

[0002] Electrolyte is a key material for lithium-ion batteries and sodium-ion batteries, and plays the role of conducting electrons between the positive and negative electrodes in the battery. As the number of battery cycles (i.e., the number of cycles used) increases, the electrolyte is continuously consumed, the viscosity of the electrolyte changes accordingly, and the overall electrical performance of the battery will gradually change.

[0003] The existing electrolyte detection technology has become increasingly mature, but lacks some auxiliary devices for electrolyte detection, such as an auxiliary device for injecting a quantitative amount of electrolyte to be tested into the detection device. Therefore, an auxiliary device for electrolyte detection is proposed.

[0004] After searching, the announcement number CN218350106U discloses an auxiliary device for testing electrolyte viscosity, including a chassis, a signal acquisition card and a display screen; a sample pool and a laser are arranged on the top of the chassis; the laser is located directly in front of the sample pool; the sample pool includes a lower shell; the top of the lower shell is sealed and covered with an upper cover plate; the left and right side walls of the lower shell are respectively the positive electrode connection wall and the negative electrode connection wall; the positive electrode connection wall and the negative electrode connection wall are respectively connected to the positive electrode plate and the negative electrode plate of the battery; the bottom of the lower shell is a transparent glass sheet bottom plate; the inner cavity of the lower shell is injected with electrolyte; fluorescent quantum dots are added to the electrolyte; the laser is used to shoot laser from the glass sheet bottom plate; the signal acquisition card is connected to the display screen. The utility model can assist researchers in quickly detecting changes in electrolyte viscosity and guide researchers to improve electrolyte performance by detecting changes in the diffusion coefficient of fluorescent quantum dots in the electrolyte during the charge and discharge cycle of the electrolyte.

[0005] In the above application, the injection hole for injecting electrolyte into the inner cavity of the lower shell is small, and there is no device for injecting electrolyte into the device for testing electrolyte viscosity. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides an auxiliary device for electrolyte detection, aiming to improve the problem of inconvenience in injecting electrolyte to be tested due to the small injection hole and the lack of electrolyte quantitative injection device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary device for electrolyte detection, comprising a shell, a raw liquid tank is installed in the middle of the shell, a conduit is installed at the bottom of the raw liquid tank, a second electric valve is installed in the middle of the conduit, a buffer tank is installed at one end of the conduit, a quantitative tube is installed at the bottom of the buffer tank, a liquid outlet pipe is fixedly connected to the bottom of the quantitative tube, a hose is installed at one end of the liquid outlet pipe, a pressure valve is installed at one end of the hose, an injection pipe is fixedly connected to the output end of the pressure valve, a liquid inlet pipe is installed on one side of the raw liquid tank, a third electric valve is installed in the middle of the liquid inlet pipe, a connecting pipe is installed on the upper part of the raw liquid tank, one end of the connecting pipe is fixedly connected to the output end of the second pressure pump, a stirring assembly is arranged in the middle of the raw liquid tank, and a pressure assembly is arranged on the upper part of the shell.

[0008] Preferably, the stirring assembly comprises a motor, the bottom of the motor is fixedly connected to the top of the raw liquid tank, the output end of the motor is fixedly connected to a rotating rod, and the outer side of the rotating rod is fixedly connected to a stirring rod.

[0009] Preferably, the pressure assembly includes a first pressure pump, an output end of the first pressure pump is fixedly connected to a first electric valve, and one end of the first electric valve is fixedly connected to an upper portion of the conduit.

[0010] Preferably, a drip groove is provided on the front side of the shell.

[0011] Preferably, a drain pipe is installed at the bottom of the drip groove, and a baffle is provided at the front side of the drip groove.

[0012] Preferably, a pressure sensor is installed on the lower front side of the shell.

[0013] Preferably, the input end of the pressure sensor is fixedly connected to a foot pedal.

[0014] Preferably, a pressure control button is installed on the upper front side of the shell.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, by opening the second electric valve and closing the third electric valve, the second pressure pump increases the internal pressure of the stock liquid tank, so that the electrolyte in the stock liquid tank enters the buffer tank, the quantitative tube, the liquid outlet pipe, the pressure valve and the liquid injection pipe along the conduit, and the electrolyte can be discharged in large quantities.

[0017] 2. In the utility model, the electrolyte in the quantitative tube is slowly discharged along the liquid outlet pipe, the pressure valve and the liquid injection pipe by closing the second electric valve, opening the first electric valve and increasing the pressure of the buffer tank with the first pressure pump.

[0018] 3. In the utility model, the output end of the motor drives the rotating rod and the stirring rod installed thereon to achieve the stirring effect of the electrolyte inside the stock liquid tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of an auxiliary device for electrolyte detection proposed by the utility model;

[0020] Figure 2 for Figure 1 A magnified image of point A;

[0021] Figure 3 This is a stereoscopic diagram of a stirring assembly of an auxiliary device for electrolyte detection proposed by the utility model.

[0022] Legend:

[0023] 1. Shell; 2. Drain pipe; 3. Drip groove; 4. Baffle; 5. Hose; 6. Liquid outlet pipe; 7. Dosing pipe; 8. Buffer tank; 9. First pressure pump; 10. First electric valve; 11. Second electric valve; 12. Conduit; 13. Second pressure pump; 14. Connecting pipe; 15. Liquid inlet pipe; 16. Third electric valve; 17. Raw liquid tank; 18. Motor; 19. Pressure valve; 20. Liquid injection pipe; 21. Rotating rod; 22. Stirring rod; 23. Pressure sensor; 24. Foot pedal; 25. Pressure control button. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-2 The utility model provides an embodiment: an auxiliary device for electrolyte detection, comprising a shell 1, a raw liquid tank 17 is installed in the middle of the shell 1, a conduit 12 is installed at the bottom of the raw liquid tank 17, a second electric valve 11 is installed in the middle of the conduit 12, a buffer tank 8 is installed at one end of the conduit 12, a quantitative tube 7 is installed at the bottom of the buffer tank 8, a liquid outlet pipe 6 is fixedly connected to the bottom of the quantitative tube 7, a hose 5 is installed at one end of the liquid outlet pipe 6, a pressure valve 19 is installed at one end of the hose 5, and a liquid injection pipe 20 is fixedly connected to the output end of the pressure valve 19, a liquid inlet pipe 15 is installed on one side of the raw liquid tank 17, a third electric valve 16 is installed in the middle of the liquid inlet pipe 15, a connecting pipe 14 is installed on the upper part of the raw liquid tank 17, one end of the connecting pipe 14 is fixedly connected to the output end of the second pressure pump 13, a stirring component is arranged in the middle of the raw liquid tank 17, and a pressure component is arranged on the upper part of the shell 1.

[0026] Specifically, the shell 1 serves to protect the device body, the raw liquid tank 17 serves to provide storage space for the electrolyte and prevent impurities from entering, the conduit 12 serves to limit the flow direction of the electrolyte, the second electric valve 11 serves to limit the internal pressure of the buffer tank 8 and the raw liquid tank 17, the buffer tank 8 serves to receive the electrolyte output by the raw liquid tank 17, the quantitative tube 7 is a transparent glass tube with a metering scale marked on it, which serves to observe the amount of injected electrolyte, the liquid outlet pipe 6 serves to connect the hose 5, the hose 5 serves to connect the pressure valve 19, the pressure valve 19 serves to open the valve after being subjected to a pressure exceeding a certain value, the injection pipe 20 serves to inject liquid into the detection device, the liquid inlet pipe 15 serves to add electrolyte to the raw liquid tank 17, the third electric valve 16 serves to prevent the external air pressure from being balanced with the internal air pressure when the second pressure pump 13 is working, and the second pressure pump 13 serves to increase the internal pressure of the device.

[0027] Reference Figure 3 The stirring assembly includes a motor 18 , the bottom of the motor 18 is fixedly connected to the top of the raw liquid tank 17 , the output end of the motor 18 is fixedly connected to a rotating rod 21 , and the outer side of the rotating rod 21 is fixedly connected to a stirring rod 22 .

[0028] Specifically, the motor 18 has the effect of rotating the rotating rod 21 on the output end, the rotating rod 21 has the effect of supporting the stirring rod 22, and the stirring rod 22 has the effect of stirring.

[0029] Reference Figure 1 A drip groove 3 is provided on the front side of the shell 1, a drain pipe 2 is installed at the bottom of the drip groove 3, a baffle 4 is provided on the front side of the drip groove 3, a pressure sensor 23 is installed on the lower side of the front part of the shell 1, and a foot pedal 24 is fixedly connected to the input end of the pressure sensor 23. A pressure control button 25 is installed on the upper side of the front part of the shell 1. The pressure component includes a first pressure pump 9, and a first electric valve 10 is fixedly connected to the output end of the first pressure pump 9. One end of the first electric valve 10 is fixedly connected to the upper part of the conduit 12.

[0030] Specifically, the drip groove 3 serves to prevent the leaked liquid from splashing, the drain pipe 2 serves to discharge the leaked liquid, the pressure sensor 23 serves to control the closing of the second electric valve 11 after receiving the pressure, the first pressure pump 9 serves to increase the internal pressure of the buffer tank 8, the foot pedal 24 serves to assist the operator in applying pressure to the pressure sensor 23, and the pressure control button 25 serves to control the opening and closing of the third electric valve 16 and the start and close of the second pressure pump 13.

[0031] Working principle: Before using the device, first open the third electric valve 16 and the second pressure pump 13 through the pressure control button 25, the second pressure pump 13 reduces the internal pressure of the raw liquid tank 17, and adds the electrolyte doped with fluorescent quantum dots into the raw liquid tank 17 through the liquid inlet pipe 15, then close the third electric valve 16, start the motor 18, and make the stirring rod 22 stir the electrolyte, the second pressure pump 13 increases the internal pressure of the raw liquid tank 17, the second electric valve 11 opens, and the electrolyte enters the quantitative tube 7 through the conduit 12 and the buffer tank 8. When the electrolyte reaches the specified scale on the quantitative tube 7, the second pressure pump 13 is closed, the second electric valve 11 is closed, the first electric valve 10 is opened, the first pressure pump 9 slowly applies pressure to the buffer tank 8, and the pressure valve 19 under a certain pressure opens. The electrolyte in the quantitative tube 7 slowly enters the injection tube 20 along the liquid outlet pipe 6, the hose 5, and the pressure valve 19, and is injected into the electrolyte detection device from the injection tube 20.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary device for electrolyte detection, comprising a housing (1), characterized in that: A raw liquid tank (17) is installed in the middle of the shell (1), a conduit (12) is installed at the bottom of the raw liquid tank (17), a second electric valve (11) is installed in the middle of the conduit (12), a buffer tank (8) is installed at one end of the conduit (12), a quantitative tube (7) is installed at the bottom of the buffer tank (8), a liquid outlet pipe (6) is fixedly connected to the bottom of the quantitative tube (7), a hose (5) is installed at one end of the liquid outlet pipe (6), and a pressure valve (11) is installed at one end of the hose (5). 9), the output end of the pressure valve (19) is fixedly connected to a liquid injection pipe (20), a liquid inlet pipe (15) is installed on one side of the raw liquid tank (17), a third electric valve (16) is installed in the middle of the liquid inlet pipe (15), a connecting pipe (14) is installed on the upper part of the raw liquid tank (17), one end of the connecting pipe (14) is fixedly connected to the output end of the second pressure pump (13), a stirring component is arranged in the middle of the raw liquid tank (17), and a pressure component is arranged on the upper part of the shell (1).

2. The auxiliary device for electrolyte detection according to claim 1, characterized in that: The stirring assembly comprises a motor (18), the bottom of the motor (18) is fixedly connected to the top of the raw liquid tank (17), the output end of the motor (18) is fixedly connected to a rotating rod (21), and the outer side of the rotating rod (21) is fixedly connected to a stirring rod (22).

3. The auxiliary device for electrolyte detection according to claim 1, characterized in that: The pressure assembly comprises a first pressure pump (9), the output end of the first pressure pump (9) is fixedly connected to a first electric valve (10), and one end of the first electric valve (10) is fixedly connected to the upper part of the conduit (12).

4. The auxiliary device for electrolyte detection according to claim 1, characterized in that: A drip groove (3) is provided on the front side of the housing (1).

5. The auxiliary device for electrolyte detection according to claim 4, characterized in that: A drainage pipe (2) is installed at the bottom of the drip groove (3), and a baffle (4) is arranged at the front side of the drip groove (3).

6. The auxiliary device for electrolyte detection according to claim 1, characterized in that: A pressure sensor (23) is installed on the lower front side of the housing (1).

7. An auxiliary device for electrolyte detection according to claim 6, characterized in that: The input end of the pressure sensor (23) is fixedly connected to a foot pedal (24).

8. The auxiliary device for electrolyte detection according to claim 1, characterized in that: A pressure control button (25) is installed on the upper front side of the housing (1).

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