A diaphragm wetness measuring device

Abstract

This utility model relates to a diaphragm wettability measuring device, characterized in that it comprises: a support platform, one side of which is used for placing at least one diaphragm to be tested; and a plurality of pressure strips, one end of each pressure strip being pivotally mounted on the same side of the support platform, and the pressure strips being spaced apart from each other on the support platform, wherein: the pressure strips are rotatable relative to the support platform to contact the other side of the diaphragm to be tested, so that the diaphragm to be tested is located between the support platform and the pressure strips, wherein this utility model can stably fix the diaphragm to be tested on the support platform, thereby avoiding warping, displacement or sliding of the diaphragm to be tested during electrolyte addition or measurement, thereby improving the accuracy, reproducibility and reliability of the diaphragm wettability measurement results.

Description

Technical Field

[0001] This utility model relates to a device for measuring the physical properties of a diaphragm, and in particular to a device for measuring the wettability of a diaphragm. Background Technology

[0002] The separator is a crucial component of a battery, primarily used to isolate the positive and negative electrodes to prevent direct contact and short circuits, while allowing ions from the electrolyte to pass through. The separator's wettability affects the electrolyte distribution within the separator and ion transport, making separator wettability a key indicator for performance evaluation. To measure separator wettability, a predetermined dose of electrolyte is dropped onto the separator surface, and the change in the wetted area over a predetermined time is observed or measured, thus assessing the separator's wettability. However, in current separator wettability measurement processes, the separator under test is typically placed flat on a test platform. When the separator is not kept flat or stably fixed, warping, displacement, or sliding can easily occur during electrolyte dropping or measurement, causing deviations in the actual drop position and wettability, thereby affecting the accuracy and reproducibility of the wettability measurement results. In addition, in the existing testing process, since the electrolyte addition position, dosage, and image acquisition at different time points are mainly done manually, measurement errors may occur due to differences in operation between different operators or between different measurements.

[0003] In view of the above-mentioned problems, it is necessary to provide a device that can keep the diaphragm under test flat and stable during the wettability measurement process, and improve the accuracy and consistency of electrolyte drop position and image acquisition. Utility Model Content

[0004] The purpose of this invention is to provide a device that can keep the diaphragm under test flat and stable during wettability measurement, and improve the accuracy and consistency of electrolyte droplet placement and image acquisition.

[0005] To achieve the above objectives, this utility model provides a diaphragm wettability measuring device, characterized in that it comprises: a support platform, one side of which is used for placing at least one diaphragm to be tested; and a plurality of pressure strips, one end of each pressure strip being pivotally mounted on the same side of the support platform, and the pressure strips being spaced apart from each other on the support platform, wherein: the pressure strips are rotatable relative to the support platform to contact the other side of the diaphragm to be tested, so that the diaphragm to be tested is located between the support platform and the pressure strips.

[0006] More preferably, the platform further includes a plurality of bases, which are spaced apart from each other on the same side of the support platform, and each base is respectively arranged corresponding to each pressure strip. Each base includes: a support frame; and a rotating rod, one end of which is disposed on the support frame and suspended at a position at a preset height from the support platform. One end of the pressure strip is rotatably connected to the rotating rod.

[0007] More preferably, the system further includes a plurality of bases, which are spaced apart from each other on the same side of the support platform, and each base is respectively arranged corresponding to each pressure strip. Each base includes: a support frame; a rotating rod, which is rotatably mounted on the support frame and suspended at a predetermined height from the support platform, wherein one end of the pressure strip is connected to the rotating rod; and a handle, which is connected to one end of the rotating rod and can rotate the rotating rod and the pressure strip relative to the support frame, so that the pressure strip moves closer to or away from the support platform.

[0008] More preferably, it further includes: a groove formed at one end of the pressure strip and extending from one end of the pressure strip to the other end of the pressure strip, so as to form a first support piece and a second support piece at one end of the pressure strip; a first through hole passing through the first support piece and connecting the corresponding two sides of the first support piece; and a second through hole passing through the second support piece and connecting the corresponding two sides of the second support piece, wherein the rotating rod of the base passes through the first through hole and the second through hole.

[0009] More preferably, it further includes: a plurality of first connecting portions, each disposed at the other end of each of the pressure strips; and a plurality of second connecting portions, disposed at intervals on the bearing platform and corresponding to each of the first connecting portions, wherein: when the pressure strip rotates to contact the diaphragm to be tested, the first connecting portion is detachably connected to the second connecting portion.

[0010] Preferably, the connection between the first joint and the second joint includes one or more of screw locking, magnetic attraction, snap fastening, and tenon joint.

[0011] More preferably, it further includes: a droplet device disposed above and correspondingly to the support platform for storing electrolyte and dropping a preset dose of electrolyte onto the surface of the membrane to be tested; and a camera device disposed on the droplet device for acquiring images of the membrane immediately after the electrolyte is dropped onto it, and images of the membrane after a preset reaction time has elapsed following the addition of electrolyte, to obtain membrane image data.

[0012] More preferably, it further includes: a computing device connected to the camera device, for receiving the membrane image data and calculating the area change of the membrane under test after being wetted by the electrolyte, and thereby calculating the wettability of the membrane under test.

[0013] More preferably, the device further includes a motion control mechanism, comprising: a lifting guide rail, one end of which is connected to the outer edge of the support platform and the other end of which extends along the Z-axis; a transverse guide rail, one end of which is connected to the lifting guide rail and the other end of which extends along the X-axis, wherein the lifting guide rail can reciprocate along the Z-axis with the transverse guide rail to move closer to or further away from the support platform; and a longitudinal guide rail, one end of which is connected to the transverse guide rail and the other end of which extends along the Y-axis, wherein the transverse guide rail can reciprocate along the X-axis with the longitudinal guide rail, and the droplet device is disposed on the longitudinal guide rail, such that the longitudinal guide rail can reciprocate along the Y-axis with the droplet device.

[0014] More preferably, it further includes: a processor connected to the droplet device and the movement control device respectively, to receive the landing position, and to control the movement control device to move the droplet device to the landing position, and to control the droplet device to add the electrolyte droplet to the surface of the membrane to be tested.

[0015] The advantages of this invention over prior art are as follows: This invention uses a support platform and multiple pressure strips to stably fix the diaphragm under test on the support platform, effectively preventing warping, displacement, or slippage of the diaphragm during electrolyte addition or measurement. Furthermore, the coordinated use of the droplet device, camera device, motion control device, and processor allows the electrolyte to be accurately added to the predetermined landing point, and images of the diaphragm under test at different time points are obtained for automatic analysis of the diaphragm's wettability. In summary, this invention improves the automation level of diaphragm wettability measurement, ensures the accuracy of electrolyte droplet placement, and enhances the accuracy, reproducibility, and reliability of the diaphragm wettability measurement results, thereby reducing measurement errors caused by human operation. Attached Figure Description

[0016] Figures 1A to 1B A series of three-dimensional structural diagrams are provided to illustrate the structural features of the diaphragm wettability measuring device. Figure 2 This is a magnified view of a portion of the structure to illustrate the structural features of the base. Figure 3 This is a three-dimensional structural diagram used to further illustrate the structural features of the diaphragm wettability measuring device. Detailed Implementation

[0017] To make the above and / or other objectives, effects, and features of this utility model more apparent and understandable, preferred embodiments are described in detail below: The purpose of this utility model is to provide a diaphragm wettability measuring device 1, wherein, as shown in the figure... Figures 1A to 1B As shown, the invention includes: a support platform 2, one side of which is used to place at least one diaphragm 3 to be tested; and a plurality of pressure strips 4, one end of each pressure strip 4 being pivotally mounted on the same side of the support platform 2, and the pressure strips 4 being spaced apart from each other on the support platform 2. The pressure strips 4 are rotatable relative to the support platform 2 to contact the other side of the diaphragm 3 to be tested, so that the diaphragm 3 is located between the support platform 2 and the pressure strips 4. This invention uses the support platform 2 to provide a flat surface for the diaphragm 3 to be tested, and uses the plurality of pressure strips 4, which are rotatable relative to the support platform 2, to hold the diaphragm 3 to be tested, so that the diaphragm 3 can be stably fixed on the support platform 2. Furthermore, during the process of adding electrolyte to the diaphragm 3 and during measurement, the diaphragm 3 will not warp, shift, or slide, thereby improving the accuracy, reproducibility, and reliability of the wettability measurement results of the diaphragm 3.

[0018] Preferably, in order to stably support the pressure strip 4 and allow the pressure strip 4 to rotate smoothly relative to the support platform 2, so as to facilitate the placement and fixation of the diaphragm 3 to be tested, wherein... Figure 2 As shown, the system further includes a plurality of bases 5, which are spaced apart from each other on the same side of the support platform 2, and each base 5 is respectively arranged corresponding to each pressure strip 4. Each base 5 includes: a support frame 6; and a rotating rod 7, one end of which is disposed on the support frame 6 and suspended at a predetermined height from the support platform 2. One end of the pressure strip 4 is rotatably connected to the rotating rod 7. In a preferred embodiment, one end of the support frame 6 is fixed to the support platform 2.

[0019] Preferably, to easily control the rotation of the pressure strip 4 for picking up, placing, or adjusting the position of the diaphragm 3 to be tested, a plurality of bases 5 are provided at intervals on the same side of the support platform 2, and each base 5 is respectively provided corresponding to each pressure strip 4, wherein each base 5 includes: a support frame 6; a rotating rod 7, which is rotatably mounted on the support frame 6 and suspended at a predetermined height from the support platform 2, wherein one end of the pressure strip 4 is connected to the rotating rod 7; and a handle 8, which is connected to one end of the rotating rod 7 and can cause the rotating rod 7 and the pressure strip 4 to rotate relative to the support frame 6, so that the pressure strip 4 moves closer to or away from the support platform 2.

[0020] More preferably, in order to allow the rotating rod 7 to be stably mounted on the pressure strip 4 to form a pivotal structure between the pressure strip 4 and the base 5, the structure further includes: a groove 9 formed at one end of the pressure strip 4 and extending from one end of the pressure strip 4 to the other end of the pressure strip 4, so that a first support piece 10 and a second support piece 11 are formed at one end of the pressure strip 4; a first through hole 12 passing through the first support piece 10 and connecting the corresponding two sides of the first support piece 10; and a second through hole 13 passing through the second support piece 11 and connecting the corresponding two sides of the second support piece 11, wherein the rotating rod 7 of the base 5 is inserted in the first through hole 12 and the second through hole 13.

[0021] Preferably, in order to ensure that the pressure strip 4 is fixed on the support platform 2 when pressing the diaphragm 3 to be tested, so as to prevent the diaphragm 3 from loosening due to the rotation of the pressure strip 4, wherein... Figure 3 As shown, it further includes: a plurality of first connecting portions 14, each disposed at the other end of each of the pressure strips 4; and a plurality of second connecting portions 15, spaced apart from each other on the support platform 2, and corresponding to each of the first connecting portions 14, wherein: when the pressure strip 4 rotates to contact the diaphragm 3 to be tested, the first connecting portion 14 is detachably connected to the second connecting portion 15. In a preferred embodiment, the connection method between the first connecting portion 14 and the second connecting portion 15 includes one or more of screw locking, magnetic attraction, snap fastening, and tenon joint, but is not limited thereto.

[0022] More preferably, in order to drop a preset dose of electrolyte onto the surface of the membrane 3 to be tested and obtain images of the membrane 3 at different time points after the drop, so as to perform subsequent analysis of the performance of the membrane 3, the method further includes: a droplet device 16, which is disposed above the support platform 2 and correspondingly disposed to the support platform 2, for storing electrolyte and dropping a preset dose of electrolyte onto the surface of the membrane 3 to be tested; and a camera device 17, which is disposed on the droplet device 16, to obtain images of the membrane 3 immediately after the electrolyte is dropped onto the membrane 3, and images of the membrane 3 after a preset reaction time has elapsed after the electrolyte is dropped, so as to obtain membrane image data. In a preferred embodiment, to calculate the wettability of the test diaphragm 3, the method further includes: a computing device 18 connected to the imaging device 17, for receiving the diaphragm image data and calculating the area change of the test diaphragm 3 after being wetted by the electrolyte, and thereby calculating the wettability of the test diaphragm 3. In another preferred embodiment, the diaphragm image data includes: a first image result, which is an image of the test diaphragm 3 immediately after the electrolyte is added; and a second image result, which is an image of the test diaphragm 3 after the electrolyte has been added and a preset reaction time has elapsed. In yet another preferred embodiment, the area change of the test diaphragm 3 after being wetted by the electrolyte is calculated based on the first image result and the second image result.

[0023] More preferably, to enable the droplet device 16 to move along the X-axis, Y-axis, and Z-axis directions to adjust the position of the droplet device 16 relative to the diaphragm 3 to be tested, a movement control device 19 is further included, comprising: a lifting guide rail 20, one end of which is connected to the outer edge of the support platform 2, and the other end of which extends along the Z-axis; a transverse guide rail 21, one end of which is connected to the lifting guide rail 20, and the other end of which extends along the X-axis, wherein the lifting guide rail 20 can move the transverse guide rail 21 reciprocally along the Z-axis to move closer to or further away from the support platform 2; and a longitudinal guide rail 22, one end of which is connected to the transverse guide rail 21, and the other end of which extends along the Y-axis, wherein the transverse guide rail 21 can move the longitudinal guide rail 22 reciprocally along the X-axis, and the droplet device 16 is disposed on the longitudinal guide rail 22, so that the longitudinal guide rail 22 can move the droplet device 16 reciprocally along the Y-axis. In a preferred embodiment, in order to control the droplet device 16 to move to the landing position and add electrolyte droplets to the surface of the membrane 3 to be tested, the device further includes: a processor 23, which is connected to the droplet device 16 and the movement control device 19 respectively, to receive the landing position, and to control the movement control device 19 to move the droplet device 16 to the landing position and to control the droplet device 16 to add electrolyte droplets to the surface of the membrane 3 to be tested.

[0024] The advantages of this invention over prior art are as follows: This invention uses a support platform 2 and multiple pressure strips 4 to stably fix the diaphragm 3 to be tested on the support platform 2, effectively preventing warping, displacement, or sliding of the diaphragm 3 during electrolyte addition or measurement. Furthermore, through the cooperation of the droplet device 16, the camera device 17, the motion control device 19, and the processor 23, the electrolyte can be accurately added to the predetermined landing point, and images of the diaphragm 3 at different time points can be obtained to automatically analyze the wettability of the diaphragm 3. In summary, this invention can improve the automation level of the wettability measurement of the diaphragm 3, ensure the accuracy of the electrolyte droplet position, and improve the accuracy, reproducibility, and reliability of the wettability measurement results of the diaphragm 3, thereby reducing measurement errors caused by human operation.

[0025] However, the above description is only a preferred embodiment of the present utility model, but it cannot be used to limit the scope of patent protection of the present utility model; therefore, any simple equivalent changes and modifications made in accordance with the scope of patent protection and the contents of the specification of the present utility model shall still fall within the scope of patent protection of the present utility model.

Claims

1. A diaphragm wettability measuring device, characterized in that, Include: A support platform, one side of which is used to place at least one diaphragm to be tested; and A plurality of pressure strips, one end of each pressure strip being pivotally mounted on the same side of the support platform, and each pressure strip being spaced apart from each other on the support platform, wherein: the pressure strips are rotatable relative to the support platform to contact the other side of the diaphragm to be tested, so that the diaphragm to be tested is located between the support platform and the pressure strips.

2. The diaphragm wettability measuring device according to claim 1, characterized in that, It further includes a plurality of bases, which are spaced apart from each other on the same side of the bearing platform, and each base is respectively arranged corresponding to each pressure strip, wherein each base includes: Support frame; and The rotating rod has one end mounted on the support frame and suspended at a preset height from the bearing platform, wherein one end of the pressure strip is rotatably connected to the rotating rod.

3. The diaphragm wettability measuring device according to claim 1, characterized in that, It further includes a plurality of bases, which are spaced apart from each other on the same side of the bearing platform, and each base is respectively arranged corresponding to each pressure strip, wherein each base includes: Support frame; The rotating rod is rotatably mounted on the support frame and suspended at a predetermined height from the bearing platform, wherein one end of the pressure strip is connected to the rotating rod; as well as The handle is connected to one end of the rotating rod and can cause the rotating rod and the pressure strip to rotate relative to the support frame, so that the pressure strip moves closer to or away from the bearing platform.

4. The diaphragm wettability measuring device according to claim 2, characterized in that, It also includes: A groove is formed at one end of the pressure strip and extends from one end of the pressure strip to the other end of the pressure strip, so that a first support piece and a second support piece are formed at one end of the pressure strip; The first perforation is provided on the first support piece and connects the corresponding two sides of the first support piece; as well as The second perforation is provided on the second support plate and connects the corresponding two sides of the second support plate, wherein the rotating rod of the base is inserted in the first perforation and the second perforation.

5. The diaphragm wettability measuring device according to claim 1, characterized in that, It also includes: A plurality of first joint portions are respectively disposed at the other end of each of the aforementioned pressure strips; and A plurality of second joints are disposed at intervals on the support platform and are disposed corresponding to each of the first joints, wherein: when the pressure strip rotates to contact the diaphragm to be tested, the first joints are detachably connected to the second joints.

6. The diaphragm wettability measuring device according to claim 5, characterized in that, The connection method between the first joint and the second joint includes one or more of screw locking, magnetic attraction, snap fastening, and tenon joint.

7. The diaphragm wettability measuring device according to claim 1, characterized in that, It also includes: The droplet device is disposed above the support platform and correspondingly disposed thereto, for storing electrolyte and adding a preset dose of electrolyte to the surface of the membrane to be tested; The camera device is installed on the droplet device to acquire images of the membrane immediately after the electrolyte is added to the membrane under test, and images of the membrane after a preset reaction time has elapsed after the electrolyte is added, in order to obtain membrane image data.

8. The diaphragm wettability measuring device according to claim 7, characterized in that, It further includes: a computing device connected to the camera device, for receiving the membrane image data and calculating the area change of the membrane under test after being wetted by the electrolyte, and thereby calculating the wettability of the membrane under test.

9. The diaphragm wettability measuring device according to claim 7, characterized in that, It also includes a motion control device, comprising: The lifting guide rail has one end connected to the outer edge of the bearing platform and the other end extending along the Z-axis direction; A transverse guide rail, one end of which is connected to the lifting guide rail, and the other end extending along the X-axis, wherein the lifting guide rail can reciprocate along the Z-axis, moving it closer to or further away from the support platform; and A longitudinal guide rail has one end connected to the transverse guide rail and the other end extending along the Y-axis. The transverse guide rail can move back and forth along the X-axis with the longitudinal guide rail. The droplet device is disposed on the longitudinal guide rail, so that the longitudinal guide rail can move back and forth along the Y-axis with the droplet device.

10. The diaphragm wettability measuring device according to claim 9, characterized in that, It further includes: a processor, which is connected to the droplet device and the motion control device respectively, to receive the landing position, control the motion control device to move the droplet device to the landing position, and control the droplet device to add the electrolyte droplet to the surface of the membrane to be tested.

Images