CN210894028U - Pressurized water meter test slot device for preventing bubbles from being generated on surface of lithium battery diaphragm - Google Patents
Pressurized water meter test slot device for preventing bubbles from being generated on surface of lithium battery diaphragm Download PDFInfo
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- CN210894028U CN210894028U CN201921442124.XU CN201921442124U CN210894028U CN 210894028 U CN210894028 U CN 210894028U CN 201921442124 U CN201921442124 U CN 201921442124U CN 210894028 U CN210894028 U CN 210894028U
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Abstract
The utility model provides a prevent that lithium battery diaphragm surface from producing water meter test groove device of bubble, it includes: the water pressing instrument, the ultrasonic cleaning vibrating rod, sample groove and test groove, be provided with the experiment groove in the water pressing instrument, the experiment inslot is provided with the water inlet, the water inlet is connected to the test groove, the pure water passes through the water inlet and gets into test groove, the sample groove is placed in test groove, lithium battery diaphragm places in the sample groove, the sample groove has the spiral cover through threaded connection, be provided with the sealing washer between sample groove and the spiral cover, ultrasonic cleaning vibrating rod fixed mounting is in the experiment inslot, and directly over the ultrasonic cleaning vibrating rod was located the sample groove, the ultrasonic cleaning vibrating rod can reciprocate and get into in the test groove. The utility model discloses compare in prior art and can avoid the experimental error that the water produced because of the artifical pollution that causes, guarantee that the bubble on diaphragm surface is got rid of completely.
Description
Technical Field
The utility model relates to a lithium cell technical field particularly, relates to a prevent pressurized-water meter test groove device of lithium battery diaphragm surface gassing.
Background
The air permeability of the separator is determined by various factors such as the thickness, porosity, pore size and distribution thereof. Generally, the air permeability of a battery separator is measured as the air transmission rate, defined as the time required for a certain amount of air to pass through a unit area of the separator under a unit pressure difference. For a given battery separator having the same thickness and porosity, the air permeability is proportional to the electrical resistivity, and the smaller the air permeability, the smaller the electrical resistance, and the better the electrochemical performance exhibited. The air permeability of a bi-layer or multi-layer film is generally lower than that of a single-layer film of the same material, and even if the porosity of the film is similar, the air permeability may be greatly different due to the difference in the permeability of the pores.
When the existing stage instrument tests the aperture and the porosity of the diaphragm, bubbles on the surface of the diaphragm can enter the micropores of the diaphragm during testing, so that the testing result is influenced. Therefore, air bubbles on the surface of the diaphragm need to be removed before the test. At this stage, the method of removing air bubbles from the surface of the membrane by manual pressing in a water tank filled with pure water and then loading the membrane into the test cell along the corners was used. However, the water level required by manual mode is high, the method of wearing gloves can not ensure that hands are not contacted with water, and pure water needs to be replaced frequently. Therefore, the method has the defects of easy water pollution, complicated test process, easy error generation and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a prevent that pressurized-water meter test groove device of lithium cell diaphragm surface gassing can avoid the experimental error that the pollution that the experimental water caused because of the manual work produced, guarantees that the bubble on diaphragm surface is got rid of completely.
Therefore, the utility model provides a prevent that lithium cell diaphragm surface from producing water meter test groove device of bubble, it includes: the water pressing instrument, the ultrasonic cleaning vibrating rod, sample groove and test groove, be provided with the experiment groove in the water pressing instrument, the experiment inslot is provided with the water inlet, the water inlet is connected to the test groove, the pure water passes through the water inlet and gets into test groove, the sample groove is placed in test groove, lithium battery diaphragm places in the sample groove, the sample groove has the spiral cover through threaded connection, be provided with the sealing washer between sample groove and the spiral cover, ultrasonic cleaning vibrating rod fixed mounting is in the experiment inslot, and directly over the ultrasonic cleaning vibrating rod was located the sample groove, the ultrasonic cleaning vibrating rod can reciprocate and get into in the test groove.
Further, the sample tank and the test tank are both cylindrical.
Further, the ultrasonic waves generated by the ultrasonic cleaning vibration rod are about 25000Hz ultrasonic waves.
Furthermore, a baffle is arranged on the ultrasonic cleaning vibration rod, the baffle is a cylindrical baffle, and the diameter of the baffle is larger than that of the test slot.
Further, the bottom of the experimental groove is provided with a water baffle which is arranged along the circumferential direction of the experimental groove.
Furthermore, a button is arranged on the water pressing instrument and controls the ultrasonic cleaning vibration rod to move up and down.
The utility model provides a prevent that lithium battery diaphragm surface from producing water pressing appearance test groove device of bubble, it has mainly set up the water pressing appearance, the ultrasonic cleaning vibrating bar, sample groove and test groove, be provided with the experimental groove in the water pressing appearance, the experimental inslot is provided with the water inlet, the water inlet is connected to the test groove, the pure water passes through the water inlet and gets into test groove, the sample groove is placed at test inslot, lithium battery diaphragm places in the sample groove, the sample groove has the spiral cover through threaded connection, be provided with the sealing washer between sample groove and the spiral cover, ultrasonic cleaning vibrating bar fixed mounting is in the experimental groove, and the ultrasonic cleaning vibrating bar is located directly over the sample groove, the ultrasonic cleaning vibrating bar can reciprocate during the test groove gets. The lithium battery diaphragm used in the test is not affected by ultrasonic waves, bubbles on the surface of the diaphragm can be completely exhausted under the ultrasonic waves of 25000Hz, and pure water can be prevented from being polluted under the ultrasonic waves. And if a small amount of white oil which is not cleaned exists on the surface of the diaphragm, the oil is emulsified and separated from the surface of the diaphragm under the action of ultrasonic waves, so that problems can be found in time, and the influence of oil content of the diaphragm can be eliminated.
The utility model provides a pair of prevent that pressurized-water meter test groove device of lithium cell diaphragm surface from producing bubble can avoid the experimental error that the pollution that the experimental water caused because of the manual work produced, guarantees that the bubble on diaphragm surface is got rid of completely, practices thrift the waste of the time and the manpower resources that frequent change pure water caused.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a water meter test slot device for preventing bubbles from being generated on the surface of a lithium battery diaphragm according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a sonic cleaning vibration rod in a test slot device of a water pressure meter for preventing bubbles from being generated on the surface of a lithium battery diaphragm according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a sample tank in a water meter test slot device for preventing bubbles from being generated on the surface of a lithium battery diaphragm according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The first embodiment is as follows:
fig. 1 to fig. 3, the drawing shows a pair of pressure water instrument test groove device for preventing bubbles from being generated on the surface of a lithium battery diaphragm, the pressure water instrument test groove device is mainly provided with a pressure water instrument 1, an ultrasonic cleaning vibrating rod 2, a sample groove 3 and a test groove 4, an experiment groove 11 is arranged in the pressure water instrument 1, the experiment groove 11 is provided with a water inlet, the water inlet is connected with the test groove 4, pure water enters the test groove 4 through the water inlet, the sample groove 3 is placed in the test groove 4, the lithium battery diaphragm is placed in the sample groove 3, the sample groove 3 is connected with a screw cap through threads, a sealing ring is arranged between the sample groove 3 and the screw cap, the ultrasonic cleaning vibrating rod 2 is fixedly installed in the experiment groove 11, the ultrasonic cleaning vibrating rod 2 is located directly over the test groove 4, and the ultrasonic cleaning vibrating rod 2.
In particular, in fig. 1 to 3, the sample well 3 and the test well 4 are both cylindrical.
Specifically, in fig. 1 to 3, a water baffle 12 is disposed at the bottom of the experimental groove 11, and the water baffle 12 is disposed along the circumferential direction of the experimental groove 11.
Specifically, as shown in fig. 1 to 3, a button 13 is arranged on the water pressurizing instrument 1, and the button 13 controls the ultrasonic cleaning vibration rod 2 to move up and down.
The utility model provides a prevent that lithium battery diaphragm surface from producing water pressing appearance test groove device of bubble, it has mainly set up the water pressing appearance, the ultrasonic cleaning vibrating bar, sample groove and test groove, be provided with the experimental groove in the water pressing appearance, the experimental inslot is provided with the water inlet, the water inlet is connected to the test groove, the pure water passes through the water inlet and gets into test groove, the sample groove is placed at test inslot, lithium battery diaphragm places in the sample groove, the sample groove has the spiral cover through threaded connection, be provided with the sealing washer between sample groove and the spiral cover, ultrasonic cleaning vibrating bar fixed mounting is in the experimental groove, and the ultrasonic cleaning vibrating bar is located directly over the sample groove, the ultrasonic cleaning vibrating bar can reciprocate during the test groove gets. After a lithium battery diaphragm is directly plugged into the sample tank, the sample tank is moved into the test tank, an ultrasonic cleaning vibration rod is arranged above the test tank, a water inlet valve is opened before testing, after the liquid level is parallel to the top of the test tank, the ultrasonic vibration rod is pressed down and moved into water, ultrasound is started, after bubbles are completely exhausted, the vibration rod is lifted up, a sealing ring is placed into the vibration rod, and a spiral cover is screwed on the vibration rod, so that subsequent testing can be performed.
The utility model provides a pair of prevent that lithium battery diaphragm surface from producing water meter test groove device of bubble can prevent that sealed oil from getting into inside copper pipe, avoids air permeability appearance air passage to produce oil pollution, ensures equipment steady operation.
Example two:
referring to fig. 1 to 3, there are shown test slot devices of a water pressurizer for preventing bubbles from being generated on the surface of a lithium battery diaphragm according to a second embodiment of the present invention, and on the basis of the second embodiment, the following technical solutions are further made as improvements in this embodiment: the ultrasonic cleaning vibration rod 2 is provided with a baffle 21, the baffle 21 is a cylindrical baffle, and the diameter of the baffle 21 is larger than that of the test slot 4.
When ultrasonic cleaning vibrating arm got into the sample cell, because the sample cell has been filled with the pure water, when ultrasonic cleaning vibrating arm got into the sample cell, can make the pure water spill, reentrant sample cell influenced test data, through be provided with the baffle on ultrasonic cleaning vibrating arm, can block the pure water spill to reach and improve the measuring accuracy.
Example three:
referring to fig. 1 to 3, a water meter test slot device for preventing bubbles from being generated on a surface of a lithium battery diaphragm according to a third embodiment of the present invention is shown in the drawings, and on the basis of the third embodiment, the following technical solutions are further made as improvements in this embodiment: the ultrasonic waves generated by the ultrasonic cleaning vibration rod 2 are about 25000Hz ultrasonic waves.
According to repeated experiments, the ultrasonic cleaning vibrating rod generates 25000Hz ultrasonic waves to exhaust air bubbles in the diaphragm, and the most accurate data is obtained.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The utility model provides a prevent that lithium cell diaphragm surface from producing water meter test groove device of bubble which characterized in that includes: a water pressing instrument (1), an ultrasonic cleaning vibrating rod (2), a sample groove (3) and a test groove (4), an experimental groove (11) is arranged in the water pressing instrument (1), a water inlet is arranged in the experimental groove (11), the test groove (4) is connected with the water inlet, pure water enters the test groove (4) through the water inlet, the sample groove (3) is placed in the test groove (4), the lithium battery diaphragm is placed in the sample groove (3), the sample tank (3) is connected with a screw cap through threads, a sealing ring is arranged between the sample tank (3) and the screw cap, the ultrasonic cleaning vibrating rod (2) is fixedly arranged in the experimental groove (11), and the ultrasonic cleaning vibrating rod (2) is positioned right above the test slot (4), the ultrasonic cleaning vibrating rod (2) can move up and down to enter the test slot (4).
2. The device of claim 1, wherein the sample tank (3) and the test tank (4) are cylindrical.
3. The device for testing the water pressurizer of claim 1, wherein the ultrasonic waves generated by the ultrasonic cleaning vibrating rod (2) are about 25000Hz ultrasonic waves.
4. The device for testing the water pressurizer tank for preventing the air bubbles from being generated on the surface of the lithium battery diaphragm is characterized in that a baffle (21) is arranged on the ultrasonic cleaning vibrating rod (2), the baffle (21) is a cylindrical baffle, and the diameter of the baffle (21) is larger than that of the testing tank (4).
5. The device for testing the water pressurizer tank to prevent bubbles from being generated on the surface of the lithium battery diaphragm is characterized in that a water baffle (12) is arranged at the bottom of the experimental tank (11), and the water baffle (12) is arranged along the circumference of the experimental tank (11).
6. The device for testing the water pressurizer of the lithium battery diaphragm surface is characterized in that a button (13) is arranged on the water pressurizer (1), and the button (13) controls the ultrasonic cleaning vibrating rod (2) to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442124.XU CN210894028U (en) | 2019-08-30 | 2019-08-30 | Pressurized water meter test slot device for preventing bubbles from being generated on surface of lithium battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442124.XU CN210894028U (en) | 2019-08-30 | 2019-08-30 | Pressurized water meter test slot device for preventing bubbles from being generated on surface of lithium battery diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210894028U true CN210894028U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921442124.XU Active CN210894028U (en) | 2019-08-30 | 2019-08-30 | Pressurized water meter test slot device for preventing bubbles from being generated on surface of lithium battery diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210894028U (en) |
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2019
- 2019-08-30 CN CN201921442124.XU patent/CN210894028U/en active Active
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