Novel lithium electrolyte sampler

Abstract

A novel lithium electrolyte sampler comprises a storage rack, the storage rack is arranged on a base, a high tray and a low tray are arranged on the left side and the right side of the storage rack, a stock solution tank is placed on the high tray, a sampling bottle is placed on the low tray, a U-shaped pipe is further arranged on the storage rack in an inverted mode, one end of the U-shaped pipe is inserted into the stock solution tank, and the other end of the U-shaped pipe is inserted into the sampling bottle. The other end of the U-shaped pipe is inserted into the sampling bottle, a ball valve is arranged on the right side of the upper end of the U-shaped pipe, an air blowing port is formed in the left side of the ball valve, the siphon principle is applied, the lithium electrolyte which is not in contact with air is obtained from the sampling bottle, the advantage that a sampled sample meets the test standard is achieved, and the technical problem that the sampled lithium electrolyte is not in contact with the air is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium electrolyte sampling, in particular to a novel lithium electrolyte sampler. Background Art

[0002] Lithium-ion batteries, with their advantages of small size, light weight, high discharge voltage, and high specific energy, are now widely used in mobile phones, laptops, compact cameras, and electric vehicles. The electrolyte in lithium-ion batteries is typically composed of lithium salts, organic solvents, and additives. The production process for this electrolyte imposes strict requirements on the purity and moisture content of each component.

[0003] Authorization announcement number CN210442153U provides an electrolyte sampler. This electrolyte sampler, with its corrosion-resistant sealant, prevents external air from entering the sampler through the sampling port. However, the air inside the sampler is not exhausted. During the sampling process, the electrolyte comes into contact with the air inside. The sampled electrolyte may react with water in the air inside the sampler, resulting in inaccurate test results. Therefore, a new lithium electrolyte sampler is proposed to address this issue. Utility Model Content

[0004] In view of the deficiencies of the existing technology, the utility model provides a novel lithium electrolyte sampler, which has the advantage of ensuring that the sampled samples meet the test standards and solves the technical problem that the sampled lithium electrolyte does not come into contact with the air.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A novel lithium electrolyte sampler includes a rack, which is arranged on a base. A high and a low tray are provided on the left and right sides of the rack. The high tray is placed on a raw liquid tank, and the low tray is placed on a sampling bottle. A U-shaped tube is also inverted on the rack, one end of the U-shaped tube is inserted into the raw liquid tank, and the other end is inserted into the sampling bottle. A ball valve is provided on the right side of the upper end of the U-shaped tube, and an air blowing port is provided on the left side of the ball valve.

[0007] Furthermore, the raw liquid tank and the sampling bottle are both provided with a sealing cover, and the sealing cover is provided with an interface for accommodating the insertion of a U-shaped tube, and a rubber ring is fixed between the interface and the U-shape, and the cross-section of the rubber ring is I-shaped.

[0008] Furthermore, a one-way valve is provided on the sealing cover of the sampling bottle.

[0009] Furthermore, the body of the storage rack is provided with a telescopic rod, which extends upward and has an end provided with a long support pad that fits in the middle of the U-shaped tube.

[0010] Furthermore, the interior of the rack body is hollow to form a hollow column, and a screw rod is rotatably connected to the hollow column. The screw rod is vertically arranged, and two sliders are rotatably connected to the screw rod. The left and right sides of the rack are concave to form slide grooves and connected to the hollow column. The upper slider extends to the left and is fixedly connected to the tray on the left, and the lower slider extends to the right and is fixedly connected to the tray on the right.

[0011] Furthermore, the thread on the screw rod is divided into two parts, the upper part is a right-handed part, and the lower part is a left-handed part, and the upper and lower sliders are respectively placed on the two parts of the thread.

[0012] Furthermore, the upper end of the screw rod is rotatably connected to the upper end of the storage rack via a bearing. The upper end of the screw rod extends upward and is fixedly connected to a rotating part, and the side surface of the rotating part is not smooth.

[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0014] This novel lithium electrolyte sampler is provided with a high and a low tray, wherein the high tray is placed with a raw liquid tank, and the low tray is placed with a sampling bottle. A U-shaped tube is also inverted on the shelf, with one end of the U-shaped tube inserted into the raw liquid tank and the other end inserted into the sampling bottle. The siphon principle can be used to sample the lithium electrolyte. By providing an air blow port and a ball valve, the U-shaped tube can be filled with lithium electrolyte. The siphon principle is used to obtain lithium electrolyte that has not come into contact with air in the sampling bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 It is a vertical sectional view of the utility model.

[0019] In the figure: 1-shelf; 11-telescopic rod; 12-support long pad; 13-empty column; 14-slide;

[0020] 2-Pallet;

[0021] 3- stock liquid tank;

[0022] 4- Sampling bottle;

[0023] 5-U-shaped tube; 51-ball valve; 52-air blowing port;

[0024] 6-sealing cover; 61-interface; 62-check valve;

[0025] 7-screw; 71-right-handed portion; 72-left-handed portion; 73-rotating portion;

[0026] 8- Slider. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] See also Figure 1-4 , a new type of lithium electrolyte sampler in this embodiment,

[0029] A novel lithium electrolyte sampler includes a rack 1, which is arranged on a base. A high and a low tray 2 are provided on the left and right sides of the rack 1. The high tray 2 is placed on a raw liquid tank 3, and the low tray 2 is placed on a sampling bottle 4. A U-shaped tube 5 is also inverted on the rack 1, and one end of the U-shaped tube 5 is inserted into the raw liquid tank 3, and the other end is inserted into the sampling bottle 4.

[0030] The original liquid tank 3 contains lithium electrolyte, and the tube mouth of one end of the U-shaped tube 5 inserted into the original liquid tank 3 is placed under the page. The purpose of this device is to allow the lithium electrolyte contained in the original liquid tank 3 to enter the sampling bottle 4 through the U-shaped tube 5 to complete sampling.

[0031] A ball valve 51 is provided on the right side of the upper end of the U-shaped tube 5 . Opening and closing the ball valve 51 can realize the circulation and blocking of gas and liquid in the U-shaped tube 5 .

[0032] An air inlet 52 is provided on the left side of the ball valve 51 . The air inlet 52 is used to deliver nitrogen. Nitrogen is an inert gas and is not likely to chemically react with the lithium electrolyte.

[0033] Furthermore, both the raw liquid tank 3 and the sampling bottle 4 are provided with a sealing cover 6. The sealing cover 6 is provided with an interface 61 for accommodating the insertion of the U-shaped tube 5. A rubber ring is fixed between the interface 61 and the U-shaped tube 5. The cross section of the rubber ring is I-shaped.

[0034] This structural design can form a closed space between the raw liquid tank 3, the U-shaped tube 5 and the sampling bottle 4. One end of the I-shaped rubber ring is fixedly connected to the outer wall of the U-shaped tube 5, and the other end is fixedly connected to the edge of the interface 61. The connection between the two ends is flexible, so that the U-shaped tube 5 can move a certain distance relative to the interface 61.

[0035] Furthermore, a one-way valve 62 is provided on the sealing cover 6 of the sampling bottle 4 .

[0036] By providing the one-way valve 62 , the gas in the sampling bottle 4 can be discharged outward in one direction.

[0037] Furthermore, the body of the storage rack 1 is provided with a telescopic rod 11 , which extends upward, and the end of the telescopic rod 11 is provided with a long support pad 12 that fits in the middle of the U-shaped tube 5 .

[0038] The long support pad 12 is used to place the U-shaped tube 5. The long support pad 12 is made of a highly elastic material, such as silicone, and can hold a variety of different U-shaped tubes 5. The telescopic rod 11 can be used to adjust the height of the placed U-shaped tube 5 to facilitate adaptation to different height requirements.

[0039] Furthermore, the interior of the rack 1 is hollow to form a hollow column 13, and a screw rod 7 is rotatably connected to the hollow column 13. The screw rod 7 is vertically arranged, and two sliders 8 are rotatably connected to the screw rod 7. The left and right sides of the rack 1 are concave to form slide grooves 14 and are connected to the hollow column 13. The upper slider 8 extends to the left and is fixedly connected to the tray 2 on the left, and the lower slider 8 extends to the right and is fixedly connected to the tray 2 on the right.

[0040] Since the screw rod 7 is rotatably connected to the hollow column 13 of the rack body 1, when the screw rod 7 rotates, the screw rod 7 cannot move in the axial direction. Therefore, the two sliders 8 rotatably connected to the screw rod 7 will slide up and down in the hollow column 13. Since the sliders 8 are fixedly connected to the tray 2, the tray 2 will move up and down with the sliders 8.

[0041] Furthermore, the thread on the screw rod 7 is divided into two parts, the upper part is a right-handed part 71, and the lower part is a left-handed part 72. The upper and lower sliders 8 are respectively placed at the two parts of the thread.

[0042] This structural design enables the two sliders 8 to move relative to each other when the screw rods 7 rotate at the same time.

[0043] Furthermore, the upper end of the screw rod 7 is rotatably connected to the upper end of the storage rack 1 through a bearing. The upper end of the screw rod 7 extends upward and is fixedly connected to a rotating portion 73, and the side surface of the rotating portion 73 is not smooth.

[0044] By rotating the rotating portion 73 , the screw rod 7 is driven to rotate. Since the side surface of the rotating portion 73 is not smooth, better force can be applied.

[0045] The working principle of this utility model is:

[0046] First, open ball valve 51 and slowly introduce nitrogen into air port 52. Nitrogen gradually fills U-shaped tube 5 and enters stock liquid tank 3 and sampling bottle 4. In stock liquid tank 3, nitrogen is blocked by the level of the lithium electrolyte and stagnates above the liquid level in stock liquid tank 3. In sampling bottle 4, due to the continuous introduction of nitrogen through air port 52, air and nitrogen in U-shaped tube 5 and sampling bottle 4 are continuously discharged through one-way valve 62. After a period of time, the gas in U-shaped tube 5 and sampling bottle 4 is mostly nitrogen.

[0047] Then, close the ball valve 51 and continue to accelerate the input of nitrogen into the air port 52. The nitrogen gradually enters the lithium electrolyte in the stock liquid tank 3 and then rises into the air above the stock liquid tank 3. At this time, the mixed gas pressure above the stock liquid tank 3 gradually increases.

[0048] After a certain period of time, the air inlet 52 is closed, the nitrogen input is stopped, and the ball valve 51 is opened. Since the mixed gas pressure above the raw liquid tank 3 is high, the lithium electrolyte near the mouth of the U-shaped tube 5 that has not been in contact with the air is pressed into the U-shaped tube 5, quickly filling the U-shaped tube 5. The nitrogen in the U-shaped tube 5 is pushed and discharged from the one-way valve 62, achieving the conditions for forming the siphon principle.

[0049] Subsequently, the lithium electrolyte that has not come into contact with air is gradually collected in the sampling bottle 4. To collect more lithium electrolyte, the rotating portion 73 is rotated counterclockwise, and the tray below the original liquid tank 3 gradually rises, thereby moving the original liquid tank 3 upward. The U-shaped tube 5 remains stationary, and the mouth of the U-shaped tube 5 gradually moves below the liquid surface, continuing the siphoning phenomenon, allowing the sampling bottle 4 to collect more lithium electrolyte. At the same time, the sampling bottle 4 moves downward.

[0050] Finally, when the lithium electrolyte in the sampling bottle 4 is about to reach the required collection amount, the ball valve 51 is closed, and the lithium electrolyte on the right side of the ball valve 51 falls into the sampling bottle 4 due to gravity, completing the sampling.

[0051] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel lithium electrolyte sampler, comprising a shelf (1), wherein the shelf (1) is arranged on a base, and is characterized in that: The rack (1) is provided with a high tray and a low tray (2) on the left and right sides. The high tray (2) is provided with a raw liquid tank (3), and the low tray (2) is provided with a sampling bottle (4). A U-shaped tube (5) is also inverted on the rack (1). One end of the U-shaped tube (5) is inserted into the raw liquid tank (3), and the other end is inserted into the sampling bottle (4). A ball valve (51) is provided on the right side of the upper end of the U-shaped tube (5), and an air blowing port (52) is provided on the left side of the ball valve (51).

2. A novel lithium electrolyte sampler according to claim 1, characterized in that: The raw liquid tank (3) and the sampling bottle (4) are both provided with a sealing cover (6), and the sealing cover (6) is provided with an interface (61) for accommodating the insertion of the U-shaped tube (5), and a rubber ring is fixed between the interface (61) and the U-shaped tube (5), and the cross section of the rubber ring is I-shaped.

3. A novel lithium electrolyte sampler according to claim 2, characterized in that: A one-way valve (62) is provided on the sealing cover (6) of the sampling bottle (4).

4. The novel lithium electrolyte sampler according to claim 1, characterized in that: The body of the storage rack (1) is provided with a telescopic rod (11), which extends upwards and has a long support pad (12) at its end that fits in the middle of the U-shaped tube (5).

5. The novel lithium electrolyte sampler according to claim 1, characterized in that: The interior of the rack (1) is hollow to form a hollow column (13), a screw rod (7) is rotatably connected in the hollow column (13), the screw rod (7) is vertically arranged, and two sliders (8) are rotatably connected to the screw rod (7). The left and right sides of the rack (1) are concave to form a slide groove (14) and are connected to the hollow column (13), the upper slider (8) extends to the left and is fixedly connected to the left tray (2), and the lower slider (8) extends to the right and is fixedly connected to the right tray (2).

6. A novel lithium electrolyte sampler according to claim 5, characterized in that: The thread on the screw rod (7) is divided into two parts, the upper part is a right-handed part (71), and the lower part is a left-handed part (72). The upper and lower sliders (8) are respectively placed on the two parts of the thread.

7. The novel lithium electrolyte sampler according to claim 5, characterized in that: The upper end of the screw rod (7) is rotatably connected to the upper end of the storage rack (1) via a bearing. The upper end of the screw rod (7) extends upward and is fixedly connected to a rotating portion (73). The side surface of the rotating portion (73) is not smooth.

Images