Detection device for low-internal-resistance carbon-coated slurry

Abstract

The utility model discloses a detection device for low-internal-resistance carbon-coated slurry, and relates to the technical field of detection devices for carbon-coated slurry. The device comprises a rectangular top plate, wherein a scraping mechanism and a clamping mechanism are arranged on the rectangular top plate; the bottom of the rectangular top plate is fixedly connected with a plurality of supporting legs, the sides, close to each other, of the supporting legs are fixedly connected with a placement box, the top of the placement box is provided with a resistance detector, the top of the rectangular top plate is provided with an aluminum foil, and the scraping mechanism comprises a scraping assembly and a limiting assembly. The scraping assembly comprises two supporting plates fixedly connected to the top of the rectangular top plate. Through the arrangement of the coating mechanism, the problems that in the using process of an existing detection device for the low-internal-resistance carbon-coated slurry, a carbon-coated material cannot be uniformly coated on an aluminum foil conveniently, so that the resistance difference of different areas is caused, the fluctuation of the whole measurement result is large, and the accuracy is high are solved. Therefore, the detection accuracy and reliability are difficult to guarantee.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon coating slurry detection devices, in particular to a low internal resistance carbon coating slurry detection device. Background Art

[0002] With the continuous development of electronic technology, the demand for high-performance batteries, supercapacitors and other energy storage devices is increasing. Carbon-coated slurry, as an important electrode material, is widely used in lithium-ion batteries, lithium-sulfur batteries, solid-state batteries and other fields. Carbon-coated slurry with low internal resistance can improve the charging and discharging efficiency, cycle life and safety of energy storage devices. Therefore, accurate detection of its internal resistance is crucial.

[0003] However, during use, the existing low-internal-resistance carbon-coated slurry detection device is not convenient for evenly applying the carbon-coated material on the aluminum foil, resulting in resistance differences in different areas, which will cause large fluctuations in the overall measurement results, making it difficult to ensure the accuracy and reliability of the detection. Utility Model Content

[0004] The purpose of the utility model is to provide a detection device for low internal resistance carbon-coated slurry. By setting up a coating mechanism, the problem that the existing low internal resistance carbon-coated slurry detection device is not convenient for evenly coating the carbon-coated material on the aluminum foil during use, resulting in resistance differences in different areas, which will cause large fluctuations in the overall measurement results, making it difficult to ensure the accuracy and reliability of the detection.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a detection device for low internal resistance carbon coating slurry, comprising a rectangular top plate, on which a scraping mechanism and a clamping mechanism are provided;

[0007] A plurality of supporting legs are fixedly connected to the bottom of the rectangular top plate, a placement box is fixedly connected to one side of the supporting legs close to each other, a resistance detector is provided on the top of the placement box, an aluminum foil is provided on the top of the rectangular top plate, the scraper mechanism includes a scraper assembly and a limit assembly, the scraper assembly includes two support plates fixedly connected to the top of the rectangular top plate, a threaded rod is rotatably connected between the two support plates, and the left side of the threaded rod rotates through the outer wall of the left support plate and extends to the outside.

[0008] Furthermore, a handle 1 is fixedly connected to the left extension portion of the threaded rod, and a movable plate is threadedly connected to the outer wall of the threaded rod.

[0009] Furthermore, a scraper piece is fixedly connected to the bottom of the movable plate, a sliding rod is fixedly connected between the two support plates, and the sliding rod slides through the movable plate.

[0010] Furthermore, the limiting assembly includes a rotation groove provided on the left support plate, a clamping ring is fixedly connected to the outer wall of the threaded rod, and the outer wall of the clamping ring rotates and extends into the rotation groove.

[0011] Furthermore, the clamping mechanism includes a supporting assembly and a clamping assembly. The supporting assembly includes a plurality of supporting rods fixedly connected to the top of the rectangular top plate. The tops of the plurality of supporting rods are fixedly connected to the rectangular plate.

[0012] Furthermore, a pull rod is slidably passed through the central axis of the two rectangular plates, and a handle 2 is fixedly connected to the top of the two pull rods.

[0013] Furthermore, the clamping assembly includes clamping plates fixedly connected to the bottoms of the two pull rods respectively, the bottoms of the two clamping plates are fixedly connected to buffer gaskets, and the bottoms of the two buffer gaskets are in contact with the aluminum foil.

[0014] Furthermore, the tops of the two clamping plates are fixedly connected to two telescopic rods, the tops of several telescopic rods are fixedly connected to two rectangular plates respectively, the outer walls of several telescopic rods are fixedly connected to springs, the tops of several springs are fixedly connected to two rectangular plates respectively, and the bottoms of several springs are fixedly connected to the two clamping plates respectively.

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

[0016] 1. By setting a scraping mechanism, after the aluminum foil is fixed, the carbon-coated slurry to be tested is poured on the aluminum foil, and the handle is turned. The handle drives the threaded rod to rotate stably under the action of the clamping ring and the rotating groove. When the threaded rod rotates, it drives the movable plate and the scraper to slide on the sliding rod to scrape the slurry on the aluminum foil. This can make the thickness of the slurry on the aluminum foil uniform. The uniform thickness can ensure the accuracy and reliability of the measurement results, avoid the internal resistance measurement error caused by uneven thickness, make the slurry surface flat, reduce surface defects such as unevenness and bubbles, thereby improving the contact performance between the electrode and the slurry, and more accurately reflect the internal resistance and electrochemical properties of the carbon-coated slurry.

[0017] 2. By setting up a clamping mechanism, when the aluminum foil needs to be fixed, the handle 2 can be pulled, and the handle 2 drives the clamping plate to move upward through the pull rod. When the clamping plate moves upward, the spring will undergo elastic deformation and be compressed, and generate elastic force. At this time, the prepared aluminum foil is placed on the rectangular top plate, and the handle 2 is released. The clamping plate will drive the buffer gasket to move downward under the action of the elastic force of the spring, exerting pressure on the aluminum foil, and stably fixing the aluminum foil on the rectangular top plate. The clamping plate exerts uniform pressure on the aluminum foil to ensure that the aluminum foil is stably fixed on the rectangular top plate without local loosening or warping, providing a stable foundation for subsequent carbon slurry coating operations, and the elastic deformation of the spring can adapt to aluminum foils of different thicknesses. Whether it is thinner or thicker aluminum foil, it can be stably fixed through the adaptability of the spring, thereby improving the versatility of the device.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the rear side cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the front side cross-sectional structure of the present invention;

[0023] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of A in the middle;

[0024] Figure 5 For this utility model Figure 1 Schematic diagram of the enlarged structure of B.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Rectangular top plate; 101. Support leg; 102. Placement box; 103. Resistance tester; 104. Aluminum foil; 2. Scraper mechanism; 21. Scraper assembly; 211. Support plate; 212. Threaded rod; 213. Handle 1; 214. Moving plate; 215. Scraper; 216. Slide rod; 22. Limit assembly; 221. Rotating groove; 222. Snap ring; 3. Clamping mechanism; 31. Support assembly; 311. Support rod; 312. Rectangular plate; 313. Pull rod; 314. Handle 2; 32. Clamping assembly; 321. Clamping plate; 322. Buffer gasket; 323. Telescopic rod; 324. Spring. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5 As shown, the utility model is a detection device for low internal resistance carbon coating slurry, comprising a rectangular top plate 1, a scraper mechanism 2 and a clamping mechanism 3 are provided on the rectangular top plate 1, a plurality of support legs 101 are fixedly connected to the bottom of the rectangular top plate 1, a placement box 102 is fixedly connected to the side where the plurality of support legs 101 are close to each other, a resistance detector 103 is provided on the top of the placement box 102, an aluminum foil 104 is provided on the top of the rectangular top plate 1, the scraper mechanism 2 comprises a scraper assembly 21 and a limit assembly 22, the scraper assembly 21 comprises two support plates 211 fixedly connected to the top of the rectangular top plate 1, a threaded rod 212 is rotatably connected between the two support plates 211, the left side of the threaded rod 212 rotates through the outer wall of the left support plate 211 and extends to the outside, a handle 213 is fixedly connected to the left extension of the threaded rod 212, and the threaded rod 212 The outer wall of the movable plate 214 is threadedly connected, and the bottom of the movable plate 214 is fixedly connected to a scraper piece 215. A sliding rod 216 is fixedly connected between the two support plates 211, and the sliding rod 216 slides through the movable plate 214. The limiting assembly 22 includes a rotation groove 221 opened on the left support plate 211, and a clamping ring 222 is fixedly connected to the outer wall of the threaded rod 212. The outer wall of the clamping ring 222 rotates and extends into the rotation groove 221. By setting up the scraper mechanism 2, the thickness of the slurry on the aluminum foil 104 can be made uniform, and the uniform thickness can ensure the accuracy and reliability of the measurement results, avoid the internal resistance measurement error caused by uneven thickness, and make the slurry surface smooth, reduce surface defects such as unevenness and bubbles, thereby improving the contact performance between the electrode and the slurry, thereby more accurately reflecting the internal resistance and electrochemical properties of the carbon-coated slurry.

[0029] The clamping mechanism 3 includes a supporting assembly 31 and a clamping assembly 32. The supporting assembly 31 includes a plurality of supporting rods 311 fixedly connected to the top of the rectangular top plate 1. The tops of the plurality of supporting rods 311 are fixedly connected to rectangular plates 312. The central axes of the two rectangular plates 312 are slidably penetrated by pull rods 313. The tops of the two pull rods 313 are fixedly connected to handles 314. The clamping assembly 32 includes clamping plates 321 fixedly connected to the bottoms of the two pull rods 313, respectively. The bottoms of the two clamping plates 321 are fixedly connected to buffer pads 322. The bottoms of the two buffer pads 322 are in contact with the aluminum foil 104. The tops of the two clamping plates 321 are fixedly connected to two telescopic rods 323. The tops of the plurality of telescopic rods 323 are respectively in contact with the two rectangular plates 3 12 fixed connection, the outer walls of several telescopic rods 323 are fixedly connected with springs 324, the tops of several springs 324 are fixedly connected to the two rectangular plates 312, and the bottoms of several springs 324 are fixedly connected to the two clamping plates 321. By setting the clamping mechanism 3, the clamping plates 321 apply uniform pressure to the aluminum foil 104, ensuring that the aluminum foil 104 is stably fixed on the rectangular top plate 1 without local loosening or warping, providing a stable foundation for subsequent carbon slurry coating operations, and the elastic deformation of the springs 324 can adapt to aluminum foils 104 of different thicknesses. Whether it is thinner or thicker aluminum foil 104, it can be stably fixed through the adaptability of the springs 324, thereby improving the versatility of the device.

[0030] A specific application of this embodiment is as follows: when in use, first place the device in the corresponding position, prepare a clean aluminum foil 104, then pull the second handle 314, the second handle 314 drives the clamping plate 321 to move upward through the pull rod 313, when the clamping plate 321 moves upward, the spring 324 will be elastically deformed and compressed, and generate elastic force, at this time, the prepared aluminum foil 104 is placed on the rectangular top plate 1, and the second handle 314 is released. The clamping plate 321 will drive the buffer gasket 322 to move downward under the action of the elastic force of the spring 324, apply pressure to the aluminum foil 104, and stably fix the aluminum foil 104 on the rectangular top plate 1, and the clamping plate 321 will press the aluminum foil 104 on the rectangular top plate 1. 4 applies uniform pressure to ensure that the aluminum foil 104 is stably fixed on the rectangular top plate 1 without local loosening or warping, providing a stable foundation for the subsequent carbon slurry coating operation, and the elastic deformation of the spring 324 can adapt to aluminum foils 104 of different thicknesses. Whether it is a thinner or thicker aluminum foil 104, it can be stably fixed through the adaptability of the spring 324, which improves the versatility of the device. After the aluminum foil 104 is fixed, the carbon coating slurry to be tested is poured on the aluminum foil 104, and the handle 1 213 is turned. The handle 1 213 drives the threaded rod 212 to rotate stably under the action of the clamping ring 222 and the rotating groove 221. When the threaded rod 212 rotates , which will drive the moving plate 214 and the scraper 215 to slide on the slide bar 216, and scrape the slurry on the aluminum foil 104 to make it flat, so that the thickness of the slurry on the aluminum foil 104 can be uniform, and the uniform thickness can ensure the accuracy and reliability of the measurement results, avoid the internal resistance measurement error caused by uneven thickness, and make the slurry surface flat, reduce surface defects such as unevenness and bubbles, thereby improving the contact performance between the electrode and the slurry, thereby more accurately reflecting the internal resistance and electrochemical properties of the carbon-coated slurry. After scraping, the resistance tester 103 can be used to test the slurry on the aluminum foil 104, where the resistance tester 103 is a MIT200 series handheld insulation resistance tester Instrument, closely contact the red test probe with the test point of the carbon-coated slurry on the aluminum foil 104, and the black test probe with the grounded part or reference point of the aluminum foil 104. Press the test button or follow the instrument's operating instructions to start the test. The working principle of the device is: by exciting the combination of the carbon-coated slurry and the aluminum foil plate to be tested with a DC voltage, and then measuring the current generated by the excitation, and then using Ohm's law to calculate the insulation resistance value. During the test, the internal circuit of the instrument will provide a stable DC voltage output and accurately measure the current passing through the object to be tested. The instrument can calculate the insulation resistance between the carbon-coated slurry and the aluminum foil plate through the measured current value and the applied voltage value.

[0031] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A low internal resistance carbon coating slurry detection device, comprising a rectangular top plate (1), on which a scraping mechanism (2) and a clamping mechanism (3) are provided, characterized in that ； The bottom of the rectangular top plate (1) is fixedly connected to a plurality of supporting legs (101), a placement box (102) is fixedly connected to a side of the plurality of supporting legs (101) close to each other, a resistance detector (103) is provided on the top of the placement box (102), an aluminum foil (104) is provided on the top of the rectangular top plate (1), the scraper mechanism (2) comprises a scraper assembly (21) and a limit assembly (22), the scraper assembly (21) comprises two supporting plates (211) fixedly connected to the top of the rectangular top plate (1), a threaded rod (212) is rotatably connected between the two supporting plates (211), and the left side of the threaded rod (212) rotates through the outer wall of the left support plate (211) and extends to the outside.

2. The low internal resistance carbon coating slurry detection device according to claim 1, characterized in that: A handle 1 (213) is fixedly connected to the left extension portion of the threaded rod (212), and a movable plate (214) is threadedly connected to the outer wall of the threaded rod (212).

3. The low internal resistance carbon coating slurry detection device according to claim 2, characterized in that: A scraper sheet (215) is fixedly connected to the bottom of the movable plate (214), and a sliding rod (216) is fixedly connected between the two support plates (211), and the sliding rod (216) slides through the movable plate (214).

4. The low internal resistance carbon coating slurry detection device according to claim 3, characterized in that: The limiting assembly (22) comprises a rotation groove (221) provided on the left support plate (211); a snap ring (222) is fixedly connected to the outer wall of the threaded rod (212); and the outer wall of the snap ring (222) is rotated to extend into the rotation groove (221).

5. The low internal resistance carbon coating slurry detection device according to claim 4, characterized in that: The clamping mechanism (3) comprises a support assembly (31) and a clamping assembly (32); the support assembly (31) comprises a plurality of support rods (311) fixedly connected to the top of the rectangular top plate (1); and the tops of the plurality of support rods (311) are fixedly connected to rectangular plates (312).

6. The low internal resistance carbon coating slurry detection device according to claim 5, characterized in that: A pull rod (313) is slidably passed through the central axis of the two rectangular plates (312), and a second handle (314) is fixedly connected to the top of the two pull rods (313).

7. The low internal resistance carbon coating slurry detection device according to claim 6, characterized in that: The clamping assembly (32) includes clamping plates (321) respectively fixedly connected to the bottoms of the two pull rods (313), the bottoms of the two clamping plates (321) are fixedly connected to buffer pads (322), and the bottoms of the two buffer pads (322) are in contact with the aluminum foil (104).

8. The low internal resistance carbon coating slurry detection device according to claim 7, characterized in that: The tops of the two clamping plates (321) are fixedly connected to two telescopic rods (323), the tops of several telescopic rods (323) are fixedly connected to the two rectangular plates (312), the outer walls of several telescopic rods (323) are fixedly connected to springs (324), the tops of several springs (324) are fixedly connected to the two rectangular plates (312), and the bottoms of several springs (324) are fixedly connected to the two clamping plates (321).

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