A pole piece flexibility testing device

Abstract

This invention belongs to the field of battery cell testing technology, specifically disclosing an electrode flexibility testing device, which includes a clamping assembly and a measuring assembly. The clamping assembly includes a first clamping platform and a second clamping platform, with a clamping gap between the first and second clamping platforms for clamping the electrode. The second clamping platform has a supporting edge on the side facing the first clamping platform. The measuring assembly includes a first slide rail, a slider, a test plate, and a handheld part. The test plate has a test surface. The first slide rail has measuring graduations distributed along a first direction on the side facing the test surface. By using the first and second clamping platforms to clamp one end of the electrode, leaving the other end of the electrode suspended, there is a sag distance between the lowest point of the suspended end of the electrode and the supporting edge. The test surface of the test plate contacts the lowest point of the suspended end to obtain the sag distance value of the electrode in the first direction. The flexibility of the corresponding electrode can be determined by the magnitude of the sag distance value.

Description

Technical Field

[0001] This invention relates to the field of battery cell testing technology, and in particular to an electrode flexibility testing device. Background Technology

[0002] Electrodes are a key component of lithium-ion batteries, primarily composed of active materials, conductive agents, binders, and dispersants. With the increasing demand for high energy density in batteries, the proportion of active materials in electrodes is rising, as are the coating weight and compaction density. This leads to increased electrode brittleness, making them prone to winding cracks, powder shedding, or warping during battery manufacturing. Electrode flexibility is a crucial indicator affecting battery performance; therefore, manufactured electrodes require specialized flexibility testing equipment to ensure they meet standard requirements.

[0003] In related technologies, some electrode flexibility testing devices involve clamping one end of the electrode, leaving the other end suspended, and then allowing the suspended end to hang naturally to determine the angle of descent, which is then used to assess the electrode's flexibility. However, this descent angle is the angle between the line connecting the lowest point of the suspended end and the bending fulcrum, and the plane containing the clamping end. Testers judge the descent angle visually and with an angle measuring device. When judging, the tester must accurately locate the lowest point of the suspended end from a horizontal perspective before using the angle measuring device. If the tester's perspective is flawed, the measurement data will have a large error, and the test data will not reflect the actual flexibility of the electrode. Summary of the Invention

[0004] The purpose of this invention is to provide an electrode flexibility testing device to solve the technical problem in the prior art where measuring the electrode droop angle by visual inspection and angle measuring instruments leads to large measurement data errors. To achieve the above objective, an electrode flexibility testing device has a first direction and a second direction that are perpendicular to each other, comprising: A clamping assembly includes a first clamping platform and a second clamping platform, the first clamping platform and the second clamping platform being spaced apart along the first direction, and a clamping gap for clamping an electrode sheet being provided between the first clamping platform and the second clamping platform; the second clamping platform has a supporting edge on the side facing the first clamping platform; A measuring assembly includes a first slide rail, a slider, and a test plate. The first slide rail extends along a first direction and is connected to a second clamping platform. The first slide rail is located on one side of the second clamping platform in the second direction. The slider is slidably connected to the first slide rail. The test plate is connected to the slider and is located on the side of the support edge away from the first clamping platform. The test plate has a test surface facing the first clamping platform and perpendicular to the first direction. Measurement scales distributed along the first direction are provided on the side of the first slide rail facing the test surface.

[0005] In some embodiments, the measuring component further includes a handheld part connected to the slider.

[0006] In some embodiments, a measuring surface is provided on the side of the first slide rail facing the test surface; the measuring surface is perpendicular to the test surface, and the measuring scale is provided on the measuring surface; a measuring edge for contacting the measuring scale is provided on one side of the test surface.

[0007] In some embodiments, the measuring surface is provided with a groove extending along the first direction in the middle, the slider is located in the groove, the groove is provided with the measuring scale on both sides in the second direction, and the test surface is provided with the measuring edge on both sides of the groove.

[0008] In some embodiments, the first slide rail is provided with a strip-shaped sliding hole communicating with the slide groove, the length direction of the strip-shaped sliding hole is parallel to the first direction, and the hand-held part is provided with a first connecting rod, which passes through the strip-shaped sliding hole and connects to the slider.

[0009] In some embodiments, the electrode flexibility testing device further includes: a base and a support plate; the support plate is disposed on the base, the second clamping stage is fixedly connected to the support plate, and the clamping assembly further includes a first driving mechanism disposed on the support plate, the first driving mechanism having a moving block, the moving block being connected to the first clamping stage, so that the first driving mechanism drives the first clamping stage to move in the first direction.

[0010] In some embodiments, the electrode flexibility testing device further includes: a recording camera; the recording camera is located on the side of the test surface facing the first clamping stage, and the recording camera is located on the side of the measuring component away from the second clamping stage, with the camera lens of the recording camera facing the measuring component; the support plate is provided with a second connecting rod, and the second connecting rod is connected to the recording camera.

[0011] In some embodiments, the electrode flexibility testing device further includes a recording stage; the recording stage is located on the side of the second clamping stage away from the first clamping stage, and the recording stage has a bearing surface facing the second clamping stage.

[0012] In some embodiments, a reinforcing support block is provided on the side of the recording stage away from the first clamping stage, and the reinforcing support block is connected to the support plate.

[0013] In some embodiments, the first driving mechanism includes a drive motor, a lead screw, and a motor controller; the length direction of the lead screw is parallel to the first direction, the motor controller is signal-connected to the drive motor, the moving block is threadedly connected to the lead screw, the drive shaft of the drive motor is connected to the lead screw, the moving block is provided with a sliding rod, the support plate is provided with a strip-shaped sliding through hole, the length direction of the sliding through hole is parallel to the first direction, and the moving block is connected to the first clamping stage through the sliding rod passing through the sliding through hole.

[0014] In some embodiments, a strip-shaped pressure plate is provided on the side of the first clamping platform facing the second clamping platform, and the extending direction of the pressure plate is parallel to the extending direction of the support edge.

[0015] The electrode flexibility testing device provided by this invention has the following advantages: It uses a first clamping platform and a second clamping platform to clamp one end of the electrode, leaving the other end suspended. The electrode hangs naturally with the support edge of the second clamping platform as a fulcrum. This creates a sag distance between the lowest point of the suspended end of the electrode and the support edge. At this point, the test plate of the measuring component can be moved, gradually approaching the support edge until the test surface contacts the lowest point of the suspended end. The corresponding measurement scale of the test surface at this moment is recorded to obtain the sag distance of the electrode in the first direction. The flexibility of an electrode can be determined by measuring the drooping distance of the electrode. Compared to technical solutions that use the naked eye and angle measuring instruments to test flexibility, the electrode flexibility testing device in this embodiment uses a measuring plate to contact the lowest point of the suspended end of the electrode to measure the length of the drooping distance. The flexibility of the corresponding electrode is determined by the magnitude of the drooping distance. That is, the measuring plate ensures that the measurement point is aligned with the lowest point of the suspended end of the electrode to accurately obtain measurement data, thereby eliminating human error and ensuring the accuracy of the test data.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the electrode flexibility testing device according to an embodiment of the present invention; Figure 2 This is another perspective structural schematic diagram of the electrode flexibility testing device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first driving mechanism according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the measurement component according to an embodiment of the present invention.

[0018] In the figure, 100 is the clamping assembly; 110 is the first clamping stage; 111 is the lower pressure plate; 120 is the second clamping stage; 121 is the supporting edge; 130 is the clamping gap; 140 is the first drive mechanism; 141 is the moving block; 142 is the drive motor; 143 is the lead screw; 144 is the motor controller; 145 is the sliding rod; 200 is the measuring assembly; 210 is the first slide rail; 211 is the measuring scale; 212 is the measuring surface; 213 is the slide groove; 214 is the strip-shaped sliding hole; 220 is the slider; 230 is the test plate; 231 is the test surface; 232 is the measuring edge; 240 is the handheld part; 241 is the first connecting rod; 300 is the base; 400 is the support plate; 410 is the second connecting rod; 420 is the sliding through hole; 500 is the recording camera; 600 is the recording stage; 610 is the bearing surface; 620 is the reinforcing support block. Z, first direction; X, second direction. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0021] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0023] Please refer to the following: Figures 1 to 4 The electrode flexibility testing device provided by the embodiments of the present invention will now be described. In the accompanying drawings, the Z direction is the first direction and the X direction is the second direction.

[0024] The electrode flexibility testing device of this embodiment has a first direction Z and a second direction X that are perpendicular to each other; in use, the first direction Z is vertical so that the electrode can hang down; the electrode flexibility testing device includes: a clamping component 100 and a measuring component 200. The clamping assembly 100 includes a first clamping platform 110 and a second clamping platform 120. The first clamping platform 110 and the second clamping platform 120 are spaced apart along the first direction Z. A clamping gap 130 for clamping the electrode sheet is provided between the first clamping platform 110 and the second clamping platform 120. The second clamping platform 120 has a supporting edge 121 on the side facing the first clamping platform 110. The measuring assembly 200 includes a first slide rail 210, a slider 220, and a test plate 230. The first slide rail 210 extends along the first direction Z and is connected to the second clamping platform 120. The first slide rail 210 is located on the side of the second clamping platform 120 in the second direction X. The slider 220 is slidably connected to the first slide rail 210. The test plate 230 is connected to the slider 220 and is located on the side of the support edge 121 away from the first clamping platform 110. The test plate 230 has a test surface 231 facing the first clamping platform 110 and perpendicular to the first direction Z. The side of the first slide rail 210 facing the test surface 231 is provided with measuring scales 211 distributed along the first direction Z.

[0025] Reference Figures 1 to 4 The clamping assembly 100 is used to clamp the electrode sample that needs to be tested for flexibility. One end of the electrode is located in the clamping gap 130, and the other end of the electrode is located outside the second clamping platform 120, which is the suspended end of the electrode. The suspended end is close to the first slide rail 210. At this time, the middle part of the electrode abuts against the support edge 121. The end of the electrode located outside the second clamping platform 120 will hang down naturally under its own weight, with the support edge 121 as the support point.

[0026] The slider 220 is slidably connected to the first slide rail 210, and the slider 220 can move along the extension direction of the first slide rail 210. When the slider 220 moves, the distance between the test plate 230 and the support edge 121 can be adjusted. Since the first direction Z is vertical, the slider 220 and the test plate 230 will be in the lowest position in their natural state. When the suspended end of the electrode hangs down under its own weight, the distance between the test plate 230 and the support edge 121 is adjusted. That is, the tester pushes the test plate 230 and the slider 220 by hand to move the test plate 230 towards the support edge 121 so that the test surface 231 contacts the lowest point of the suspended end. At this time, the test plate 230 is stopped, and the measurement scale 211 corresponding to the test surface 231 is recorded. By measuring the scale 211, the distance between the lowest point of the suspended end after hanging down and the support edge can be known, and the hanging distance value of the electrode can be obtained. The flexibility of the corresponding electrode can be determined by the size of the hanging distance value of the electrode.

[0027] In this embodiment, the electrode flexibility testing device uses a first clamping platform 110 and a second clamping platform 120 to clamp one end of the electrode, leaving the other end suspended. The electrode hangs naturally with the support edge 121 of the second clamping platform 120 as a fulcrum. This creates a sag distance between the lowest point of the suspended end of the electrode and the support edge 121. At this point, the test plate 230 of the measuring assembly 200 can be moved closer to the support edge 121 so that the test surface 231 contacts the lowest point of the suspended end. The measurement scale 211 corresponding to the test surface 231 at this time is recorded to obtain the electrode flexibility test result. The sag distance of the electrode in the first direction Z can be used to determine the flexibility of the corresponding electrode. Compared with the technical solution of testing flexibility by visual inspection and angle measuring instruments, the electrode flexibility testing device in this embodiment uses the contact between the measuring plate and the lowest point of the suspended end of the electrode to measure the length of the sag distance. The flexibility of the corresponding electrode is determined by the magnitude of the sag value. That is, the measuring plate ensures that the measurement point is aligned with the lowest point of the suspended end of the electrode to accurately obtain measurement data, thereby eliminating human operation error and ensuring the accuracy of test data.

[0028] In some embodiments, reference is made to Figures 1 to 4 To facilitate the movement of the test plate 230 by the tester, the measuring component 200 also includes a handheld part 240, which is connected to the slider 220. When the tester grips the handheld part 240, the slider 220 and the test plate 230 can be moved along the first slide rail 210, thereby facilitating the adjustment of the distance between the test plate 230 and the support edge 121 during the test, thus aiding in detection.

[0029] In some embodiments, reference is made to Figures 1 to 4The first slide rail 210 has a measuring surface 212 on the side facing the test surface 231; the measuring surface 212 is perpendicular to the test surface 231, and the measuring scale 211 is set on the measuring surface 212; a measuring edge 232 for contacting the measuring scale 211 is provided on one side of the test surface 231. That is, the test surface 231 is in close contact with the measuring surface 212, and the measuring surface 212 is perpendicular to the test surface 231, so that the tester can better observe the measuring scale 211 corresponding to the current test surface 231, and accurately obtain the value of the electrode sag distance.

[0030] In some embodiments, reference is made to Figures 1 to 4 The measuring surface 212 has a groove 213 extending along the first direction Z in the middle. The slider 220 is located in the groove 213. The groove 213 has measuring scales 211 on both sides in the second direction X. The test surface 231 has measuring edges 232 on both sides of the groove 213. This allows the measuring personnel to view the measuring scales 211 corresponding to the measuring edges 232 of the current measuring surface 212 from multiple angles, so as to better and more accurately obtain the drooping distance of the electrode.

[0031] In some embodiments, reference is made to Figures 1 to 4 The first slide rail 210 is provided with a strip-shaped sliding hole 214 communicating with the slide groove 213. The length direction of the strip-shaped sliding hole 214 is parallel to the first direction Z. The handheld part 240 is provided with a first connecting rod 241. The first connecting rod 241 passes through the strip-shaped sliding hole 214 and is connected to the slider 220. This ensures that the handheld part 240 is connected to the slider 220, and that the test plate 230 and the slider 220 can be moved by the handheld part 240 so that the test plate 230 contacts the lowest point of the suspended end of the electrode.

[0032] In some embodiments, reference is made to Figures 1 to 3To facilitate clamping and releasing the electrode sheets, the electrode sheet flexibility testing device further includes: a base 300 and a support plate 400; the support plate 400 is disposed on the base 300, and the second clamping stage 120 is fixedly connected to the support plate 400. The clamping assembly 100 further includes a first driving mechanism 140 disposed on the support plate 400. The first driving mechanism 140 has a moving block 141, which is connected to the first clamping stage 110, so that the first driving mechanism 140 drives the first clamping stage 110 to move in the first direction Z. The first driving mechanism 140 is a linear driving mechanism, so that the first clamping stage 110 can be moved along the first direction Z, thereby adjusting the size of the clamping gap 130. When it is necessary to clamp the electrode, the first drive mechanism 140 drives the first clamping stage 110 to move closer to the second clamping stage 120 to narrow the clamping gap 130, so that the first clamping stage 110 and the second clamping stage 120 clamp the electrode; when it is necessary to release the electrode to replace the electrode sample for testing, the first drive mechanism 140 drives the first clamping stage 110 away from the second clamping stage 120 to increase the clamping gap 130, so that the electrode can be taken out from the clamping gap 130, so that another electrode sample can be placed into the clamping assembly 100.

[0033] In some embodiments, reference is made to Figures 1 to 3 The electrode flexibility testing device further includes a recording camera 500. The recording camera 500 is located on the side of the test surface 231 facing the first clamping stage 110, and on the side of the measuring component 200 away from the second clamping stage 120. The camera lens of the recording camera 500 faces the measuring component 200. The support plate 400 is provided with a second connecting rod 410, which is connected to the recording camera 500. The recording camera 500 is used to record the electrode flexibility testing process. The lens of the recording camera 500 faces the testing component to record the process of the electrode sample undergoing flexibility testing. The recorded information is stored in a memory card or disk for record keeping and future reference.

[0034] In some embodiments, reference is made to Figures 1 to 3 The electrode flexibility testing device further includes a recording table 600. The recording table 600 is located on the side of the second clamping platform 120 away from the first clamping platform 110, and the recording table 600 has a bearing surface 610 facing the second clamping platform 120. The bearing surface 610 of the recording table 600 is used to place the tester's notebook, so that the tester can directly record test data on the electrode flexibility testing device, which is convenient for testing.

[0035] In some embodiments, reference is made to Figures 1 to 3The recording table 600 is provided with a reinforcing support block 620 on the side opposite to the first clamping table 110. The reinforcing support block 620 is connected to the support plate 400 and is used to provide sufficient support for the recording table 600 to prevent the recording table 600 from collapsing during use.

[0036] In some embodiments, reference is made to Figures 1 to 3 The first driving mechanism 140 includes a drive motor 142, a lead screw 143, and a motor controller 144. The length direction of the lead screw 143 is parallel to the first direction Z. The motor controller 144 is signal-connected to the drive motor 142. The moving block 141 is threadedly connected to the lead screw 143. The drive shaft of the drive motor 142 is connected to the lead screw 143. The moving block 141 is provided with a sliding rod 145. The support plate 400 is provided with a strip-shaped sliding through hole 420. The length direction of the sliding through hole 420 is parallel to the first direction Z. The moving block 141 is connected to the first clamping table 110 through the sliding rod 145 passing through the sliding through hole 420. The motor controller 144 can be a PLC controller. The motor controller 144 can control the drive motor 142 to rotate forward or reverse, so as to drive the lead screw 143 to rotate forward or reverse, which can drive the moving block 141 to reciprocate along the first direction Z, so as to clamp and release the electrode sheet. In addition, the first drive mechanism 140 can also be a cylinder drive mechanism, that is, the cylinder drives the moving block 141 to move along the first direction Z.

[0037] In some embodiments, reference is made to Figures 1 to 3 A strip-shaped pressure plate 111 is provided on the side of the first clamping platform 110 facing the second clamping platform 120. The extending direction of the pressure plate 111 is parallel to the extending direction of the support edge 121. The strip-shaped pressure plate 111 allows the side of the first clamping platform 110 facing the second clamping platform 120 to contact the electrode sheet, so as to better clamp the electrode sheet between the first clamping platform 110 and the second clamping platform 120.

[0038] In summary, the electrode flexibility testing device of this embodiment uses a first clamping platform 110 and a second clamping platform 120 to clamp one end of the electrode, leaving the other end of the electrode suspended in the air. The electrode hangs naturally with the support edge 121 of the second clamping platform 120 as a fulcrum. Therefore, there is a sag distance between the lowest point of the suspended end of the electrode and the support edge 121. At this point, the test plate 230 of the measuring component 200 can be moved, gradually moving closer to the support edge 121 so that the test surface 231 contacts the lowest point of the suspended end. The measurement scale 211 corresponding to the test surface 231 at this time is recorded to obtain... The drooping distance of the electrode in the first direction Z can be used to determine the flexibility of the corresponding electrode. Compared with the technical solution of testing flexibility by visual inspection and angle measuring instruments, the electrode flexibility testing device in this embodiment uses the contact between the measuring plate and the lowest point of the suspended end of the electrode to measure the length of the drooping distance. The flexibility of the corresponding electrode is determined by the magnitude of the drooping distance. That is, the measuring plate ensures that the measurement point is aligned with the lowest point of the suspended end of the electrode to accurately obtain measurement data, thereby eliminating human operation error and ensuring the accuracy of test data.

[0039] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. An electrode flexibility testing device, having a first direction (Z) and a second direction (X) that are perpendicular to each other, characterized in that, include: The clamping assembly (100) includes a first clamping platform (110) and a second clamping platform (120), the first clamping platform (110) and the second clamping platform (120) being spaced apart along the first direction (Z), and a clamping gap (130) for clamping the electrode sheet being provided between the first clamping platform (110) and the second clamping platform (120); the second clamping platform (120) has a supporting edge (121) on the side facing the first clamping platform (110). A measuring assembly (200) includes a first slide rail (210), a slider (220), and a test plate (230); the first slide rail (210) extends along the first direction (Z), the first slide rail (210) is connected to the second clamping stage (120), the first slide rail (210) is located on the side of the second clamping stage (120) in the second direction (X), the slider (220) is slidably connected to the first slide rail (210), the test plate (230) is connected to the slider (220), the test plate (230) is located on the side of the support edge (121) away from the first clamping stage (110), the test plate (230) has a test surface (231) facing the first clamping stage (110) and perpendicular to the first direction (Z); the side of the first slide rail (210) facing the test surface (231) is provided with measuring scales (211) distributed along the first direction (Z).

2. The electrode flexibility testing device according to claim 1, characterized in that, The measuring assembly (200) also includes a handheld part (240) connected to the slider (220).

3. The electrode flexibility testing device according to claim 2, characterized in that, The first slide rail (210) has a measuring surface (212) on the side facing the test surface (231); the measuring surface (212) is perpendicular to the test surface (231), and the measuring scale (211) is set on the measuring surface (212); a measuring edge (232) for contacting the measuring scale (211) is provided on one side of the test surface (231).

4. The electrode flexibility testing device according to claim 3, characterized in that, The measuring surface (212) is provided with a groove (213) extending along the first direction (Z) in the middle. The slider (220) is located in the groove (213). The groove (213) is provided with measuring scales (211) on both sides of the second direction (X). The test surface (231) is provided with measuring edges (232) on both sides of the groove (213).

5. The electrode flexibility testing device according to claim 4, characterized in that, The first slide rail (210) is provided with a strip-shaped slide hole (214) communicating with the slide groove (213). The length direction of the strip-shaped slide hole (214) is parallel to the first direction (Z). The hand-held part (240) is provided with a first connecting rod (241). The first connecting rod (241) passes through the strip-shaped slide hole (214) and connects to the slider (220).

6. The electrode flexibility testing device according to claim 1, characterized in that, The electrode flexibility testing device further includes: a base (300) and a support plate (400); the support plate (400) is disposed on the base (300), the second clamping stage (120) is fixedly connected to the support plate (400), and the clamping assembly (100) further includes a first driving mechanism (140) disposed on the support plate (400). The first driving mechanism (140) has a moving block (141), the moving block (141) is connected to the first clamping stage (110) so that the first driving mechanism (140) drives the first clamping stage (110) to move in the first direction (Z).

7. The electrode flexibility testing device according to claim 6, characterized in that, The electrode flexibility testing device further includes: a recording camera (500); the recording camera (500) is located on the side of the test surface (231) facing the first clamping stage (110), and the recording camera (500) is located on the side of the measuring component (200) away from the second clamping stage (120), and the camera of the recording camera (500) faces the measuring component (200); the support plate (400) is provided with a second connecting rod (410), and the second connecting rod (410) is connected to the recording camera (500).

8. The electrode flexibility testing device according to claim 7, characterized in that, The electrode flexibility testing device further includes: a recording stage (600); the recording stage (600) is located on the side of the second clamping stage (120) away from the first clamping stage (110), and the recording stage (600) is provided with a bearing surface (610) facing the second clamping stage (120).

9. The electrode flexibility testing device according to claim 8, characterized in that, The recording table (600) is provided with a reinforcing support block (620) on the side away from the first clamping table (110), and the reinforcing support block (620) is connected to the support plate (400).

10. The electrode flexibility testing device according to claim 6, characterized in that, The first driving mechanism (140) includes a drive motor (142), a lead screw (143), and a motor controller (144); the length direction of the lead screw (143) is parallel to the first direction (Z), the motor controller (144) is signal-connected to the drive motor (142), the moving block (141) is threadedly connected to the lead screw (143), the drive shaft of the drive motor (142) is connected to the lead screw (143), the moving block (141) is provided with a sliding rod (145), the support plate (400) is provided with a strip-shaped sliding through hole (420), the length direction of the sliding through hole (420) is parallel to the first direction (Z), and the moving block (141) is connected to the first clamping table (110) through the sliding rod (145) passing through the sliding through hole (420).

11. The electrode flexibility testing device according to claim 1, characterized in that, The first clamping table (110) has a strip-shaped lower pressure plate (111) on the side facing the second clamping table (120), and the extension direction of the lower pressure plate (111) is parallel to the extension direction of the support edge (121).

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