A production detection device for a positive electrode material of a power battery
By designing a fully automated production and testing device, the problems of mismatched testing cycles and low automation in cathode material production have been solved, achieving efficient and accurate testing and sorting, and improving production continuity and testing efficiency.
Patent Information
- Application Number
- CN202522553792.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-02
AI Technical Summary
Existing cathode material production and testing technologies rely on offline sampling, resulting in a mismatch between the testing cycle and the production cycle, low automation, and difficulty in capturing microscopic defects in real time, leading to rework and batch scrap.
A production inspection device was designed, comprising a rotating mechanism, a feeding mechanism, an inspection mechanism, and a defective unloading mechanism, to achieve full-process automation. Through components such as a rotating disk, a scanning electron microscope, and a vacuum suction cup, it realizes automatic sample feeding, quality analysis, and automatic sorting of defective products.
It has achieved full automation of the cathode material testing process, reduced process interruptions, improved production continuity, increased testing efficiency and accuracy, and avoided rework and scrap.
Smart Images
Figure CN224926528U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of battery production technology, specifically relating to a production and testing device for positive electrode materials of power batteries. Background Technology
[0002] A power battery is an energy storage device used in high-energy-consuming applications such as electric vehicles and hybrid vehicles. One of its key components is the cathode material. The choice of cathode material directly affects the battery's performance and performance parameters. Power battery cathode materials include lithium iron phosphate, ternary lithium batteries, and lithium cobalt oxide. Lithium iron phosphate cathode material is currently one of the most commonly used power battery cathode materials. Ternary lithium batteries are also a commonly used power battery cathode material. Lithium cobalt oxide cathode material was one of the first materials to be commercially produced and applied to electric vehicles.
[0003] Existing cathode material production and testing technologies mostly rely on offline sampling, resulting in a mismatch between the testing cycle and the production cycle. In pursuit of efficiency, companies often continue with subsequent processes without waiting for test results. When quality problems are discovered, the corresponding batch of products has already been transferred to subsequent stages, causing a large amount of rework or even batch scrapping. Secondly, existing testing equipment has a low degree of automation and many process breakpoints, which not only introduces subjective errors but also disrupts the continuity of production. At the same time, traditional methods are difficult to capture microscopic defects in real time. Utility Model Content
[0004] The purpose of this invention is to provide a production and testing device for positive electrode materials of power batteries, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A production and testing device for positive electrode materials of power batteries includes: a processing table, a rotating mechanism fixedly connected to the top of the processing table, a feeding mechanism fixedly connected to one side of the rotating mechanism, a testing mechanism fixedly connected to the top of the processing table and one side of the rotating mechanism, a defective unloading mechanism fixedly connected to one side of the testing mechanism, and a conveying rail fixedly connected to the upper surface of the processing table and in front of the rotating mechanism. The rotating mechanism includes a rotating seat fixedly connected to the upper surface of the processing table. A rotating disk is rotatably connected to the upper surface of the rotating seat. Multiple placement slots are arranged in a ring on the surface of the rotating disk. A blocking ring is fixedly connected to the surface of the rotating seat and outside the rotating disk. A feeding groove adapted to the conveyor rail is formed on the surface of the rotating seat.
[0006] As a preferred embodiment of this utility model, the rotating mechanism further includes a servo motor fixedly connected to the surface of the processing table, and the output shaft of the servo motor is fixedly connected to the rotating disk.
[0007] As a preferred embodiment of this utility model, the feeding mechanism includes a feeding frame and a reinforcing rod fixedly connected to the upper surface of the processing table. A vibrating feeding plate is fixedly connected to the top of the feeding frame. A feeding rail is fixedly connected to the surface of the reinforcing rod, and the feeding rail is fixedly connected to the discharge end of the vibrating feeding plate. A feeding head adapted to the placement groove is fixedly connected to one end of the outer side of the feeding rail.
[0008] In a preferred embodiment of this utility model, the detection mechanism includes a detection frame fixedly connected to the surface of the processing table, a second electric push rod for longitudinal adjustment fixedly connected to the surface of the detection frame, a scanning electron microscope adapted to the rotating disk fixedly connected to the surface of the piston rod of the second electric push rod, a positioning ring adapted to the scanning electron microscope fixedly connected to the surface of the detection frame, and a control panel fixedly connected to the surface of the detection frame.
[0009] As a preferred embodiment of the present invention, the defective material unloading mechanism includes a material unloading frame fixedly connected to the surface of the processing table, a first electric slide table for horizontal adjustment fixedly connected to the surface of the material unloading frame, a second electric slide table for vertical adjustment fixedly connected to the surface of the first electric slide table moving part, a vacuum suction cup fixedly connected to the surface of the second electric slide table moving part, a placement seat fixedly connected to the surface of the material unloading frame, and a plurality of placement rollers rotatably connected to the surface of the placement seat.
[0010] In a preferred embodiment of this utility model, a first electric push rod is fixedly connected to the surfaces of both sides of the conveying rail, and a limit plate is fixedly connected to the surface of the piston rod of the first electric push rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This solution provides a stable foundation through a processing table. Multiple placement slots in a circular array on the surface of the rotating disk of the rotating mechanism are used to hold the positive electrode material samples to be tested. A blocking ring prevents the samples from slipping during rotation. The feeding chute connects with the conveyor rail to realize material flow. The feeding mechanism realizes automatic feeding. The testing mechanism performs quality analysis on the samples. The defective unloading mechanism automatically sorts out unqualified products, realizing full automation of the positive electrode material testing process, reducing process interruptions, and improving production continuity. Attached Figure Description
[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0013] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the rotating mechanism in the structure of this utility model; Figure 3 This is a schematic diagram of the feeding mechanism in the structure of this utility model; Figure 4 This is a schematic diagram of the detection mechanism in the structure of this utility model; Figure 5 This is a schematic diagram of the defective material feeding mechanism in the structure of this utility model.
[0014] In the diagram: 1. Processing table; 2. Rotating mechanism; 201. Rotating seat; 202. Rotating disk; 203. Blocking ring; 204. Placement slot; 205. Discharge slot; 206. Servo motor; 3. Feeding mechanism; 301. Feeding rack; 302. Vibrating feeding plate; 303. Feeding rail; 304. Feeding head; 305. Reinforcing rod; 4. Detection mechanism; 401. Detection rack; 402. Second electric push rod; 403. Scanning electron microscope; 404. Positioning ring; 405. Control panel; 5. Defective unloading mechanism; 501. Discharge rack; 502. First electric slide; 503. Second electric slide; 504. Vacuum suction cup; 505. Placement seat; 506. Placement roller; 6. Conveying rail; 7. First electric push rod; 8. Limiting plate. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0016] Please see Figure 1-5 The technical solution provided in this embodiment is as follows: A production and testing device for positive electrode materials of power batteries includes: a processing table 1, a rotating mechanism 2 fixedly connected to the top of the processing table 1, a feeding mechanism 3 fixedly connected to one side of the rotating mechanism 2, a testing mechanism 4 fixedly connected to the top of the processing table 1 and one side of the rotating mechanism 2, a defective unloading mechanism 5 fixedly connected to one side of the testing mechanism 4, and a conveying rail 6 fixedly connected to the upper surface of the processing table 1 and the front side of the rotating mechanism 2. The rotating mechanism 2 includes a rotating seat 201 fixedly connected to the upper surface of the processing table 1. A rotating disk 202 is rotatably connected to the upper surface of the rotating seat 201. The surface of the rotating disk 202 has multiple placement slots 204 arranged in a ring. A blocking ring 203 is fixedly connected to the surface of the rotating seat 201 and located outside the rotating disk 202. The surface of the rotating seat 201 has a feeding groove 205 adapted to the conveyor rail 6. The processing table 1 provides a stable foundation. The multiple placement slots 204 arranged in a ring on the surface of the rotating disk 202 of the rotating mechanism 2 are used to hold the positive electrode material sample to be tested. The blocking ring 203 prevents the sample from slipping during rotation. The feeding groove 205 is connected to the conveyor rail 6 to realize material flow. The feeding mechanism 3 realizes automatic feeding. The testing mechanism 4 performs quality analysis on the sample. The defective unloading mechanism 5 automatically sorts out unqualified products, realizing full automation of the positive electrode material testing process, reducing process interruptions, and improving production continuity.
[0017] Specifically, the rotating mechanism 2 also includes a servo motor 206 fixedly connected to the surface of the processing table 1, and the output shaft of the servo motor 206 is fixedly connected to the rotating disk 202.
[0018] In a specific embodiment of this utility model, the rotating mechanism 2 is equipped with a servo motor 206 that is directly connected to the rotating disk 202. The servo motor 206 receives pulse signals from the control panel 405 and controls the rotation angle and pause time of the rotating disk 202 to ensure that each placement slot 204 stops accurately at the loading, inspection and unloading stations in sequence.
[0019] Specifically, the feeding mechanism 3 includes a feeding rack 301 and a reinforcing rod 305 fixedly connected to the upper surface of the processing table 1. A vibrating feeding plate 302 is fixedly connected to the top of the feeding rack 301. A feeding rail 303 is fixedly connected to the surface of the reinforcing rod 305. The feeding rail 303 is fixedly connected to the discharge end of the vibrating feeding plate 302. A feeding head 304 adapted to the placement groove 204 is fixedly connected to one end of the outer side of the feeding rail 303.
[0020] In a specific embodiment of this utility model, the feeding mechanism 3 achieves directional material conveying through a vibrating feeding plate 302 and a feeding rail 303. The vibrating feeding plate 302 causes the disordered positive electrode material particles to be arranged in an orderly manner and move in a direction in the spiral track through high-frequency vibration. The feeding rail 303, supported by the reinforcing rod 305, guides the particles to the feeding head 304. The feeding head 304 is precisely connected with the placement groove 204 to complete the filling. Vibration feeding solves the problem of clumping of positive electrode material particles caused by electrostatic adsorption. The inclined design of the feeding rail 303 uses gravity-assisted conveying to reduce energy consumption. The contour structure of the feeding head 304 avoids particle breakage.
[0021] Specifically, the testing mechanism 4 includes a testing frame 401 fixedly connected to the surface of the processing table 1. A second electric push rod 402 for longitudinal adjustment is fixedly connected to the surface of the testing frame 401. A scanning electron microscope 403 adapted to the rotating disk 202 is fixedly connected to the surface of the piston rod of the second electric push rod 402. A positioning ring 404 adapted to the scanning electron microscope 403 is fixedly connected to the surface of the testing frame 401. A control panel 405 is fixedly connected to the surface of the testing frame 401.
[0022] In a specific embodiment of this utility model, the second electric push rod 402 drives the scanning electron microscope 403 to move vertically to adjust the working distance, the positioning ring 404 ensures that the microscope remains stable in a high-speed rotation environment, the scanning electron microscope 403 emits an electron beam to scan the sample surface, receives secondary electron and backscattered electron signals to generate a high-resolution image, and the control panel 405 has a built-in algorithm to analyze particle morphology, particle size distribution and surface defects.
[0023] Specifically, the defective material unloading mechanism 5 includes a material unloading rack 501 fixedly connected to the surface of the processing table 1. A first electric slide 502 for horizontal adjustment is fixedly connected to the surface of the material unloading rack 501. A second electric slide 503 for longitudinal adjustment is fixedly connected to the surface of the moving part of the first electric slide 502. A vacuum suction cup 504 is fixedly connected to the surface of the moving part of the second electric slide 503. A placement seat 505 is fixedly connected to the surface of the material unloading rack 501. A plurality of placement rollers 506 are rotatably connected to the surface of the placement seat 505.
[0024] In a specific embodiment of this utility model, the first electric slide 502 drives the vacuum suction cup 504 to move horizontally to the defective product position, and the second electric slide 503 controls the vertical lifting. The vacuum suction cup 504 generates negative pressure to adsorb the defective product and transfer it to the placement roller 506 of the placement seat 505 for temporary storage. The combination of the first electric slide 502 and the second electric slide 503 realizes precise positioning in three-dimensional space. The vacuum suction cup 504 with adjustable adsorption force avoids material damage, and the rolling design of the placement roller 506 reduces material accumulation friction.
[0025] Specifically, a first electric push rod 7 is fixedly connected to the surface of both sides of the conveyor rail 6, and a limit plate 8 is fixedly connected to the surface of the piston rod of the first electric push rod 7.
[0026] In a specific embodiment of this utility model, the first electric push rod 7 pushes the limiting plate 8 to adjust the effective width of the conveying rail 6 according to the size of the positive electrode material, so that materials of different specifications maintain a stable posture during the transfer process.
[0027] Working principle: The vibrating feeding plate 302 first arranges the random positive electrode material particles into a single orientation and conveys them to the feeding head 304 through the feeding rail 303. At this time, the rotating plate 202 rotates to the feeding station under the drive of the servo motor 206. The feeding head 304 accurately fills the particles into the placement groove 204. As the rotating plate 202 rotates intermittently, the placement groove 204 carrying the sample passes through the detection station in sequence. The scanning electron microscope 403 is lowered to the optimal working distance by the adjustment of the second electric push rod 402 to scan and image the particle surface. The image processing algorithm built into the control panel 405 analyzes the particle morphology, particle size distribution and surface defects in the SEM image in real time and compares them with the preset quality standards. When a defective product with a foreign metal object, crack, or oversized is detected, the system marks the position of the placement slot 204. The rotating disk 202 continues to rotate to the unloading station. The first electric slide 502 and the second electric slide 503 of the defective unloading mechanism 5 work together to position the vacuum suction cup 504 above the defective product. After the material is picked up by negative pressure adsorption, it is transferred to the placement roller 506 of the placement seat 505 for centralized storage. Good products are rotated to the position of the unloading slot 205 with the rotating disk 202 and slide into the conveyor rail 6 under the action of gravity. The first electric push rods 7 on both sides of the conveyor rail 6 push the limit plate 8 to adjust the channel width according to the material size, so as to ensure that the material moves stably to the next process during the transfer.
[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A production and testing device for positive electrode materials of power batteries, characterized in that, include: A processing table (1) is fixedly connected to a rotating mechanism (2) at its top. A feeding mechanism (3) is fixedly connected to one side of the rotating mechanism (2). A detection mechanism (4) is fixedly connected to the top of the processing table (1) and to one side of the rotating mechanism (2). A defective unloading mechanism (5) is fixedly connected to one side of the detection mechanism (4). A conveyor rail (6) is fixedly connected to the upper surface of the processing table (1) and to the front side of the rotating mechanism (2). The rotating mechanism (2) includes a rotating seat (201) fixedly connected to the upper surface of the processing table (1). A rotating disk (202) is rotatably connected to the upper surface of the rotating seat (201). Multiple placement slots (204) are arranged in a ring on the surface of the rotating disk (202). A blocking ring (203) is fixedly connected to the surface of the rotating seat (201) and outside the rotating disk (202). A feeding slot (205) adapted to the conveying rail (6) is opened on the surface of the rotating seat (201).
2. The production and testing device for positive electrode materials of power batteries according to claim 1, characterized in that, The rotating mechanism (2) also includes a servo motor (206) fixedly connected to the surface of the processing table (1), and the output shaft of the servo motor (206) is fixedly connected to the rotating disk (202).
3. The production and testing device for positive electrode materials of power batteries according to claim 1, characterized in that, The feeding mechanism (3) includes a feeding rack (301) and a reinforcing rod (305) fixedly connected to the upper surface of the processing table (1). A vibrating feeding plate (302) is fixedly connected to the top of the feeding rack (301). A feeding rail (303) is fixedly connected to the surface of the reinforcing rod (305). The feeding rail (303) is fixedly connected to the discharge end of the vibrating feeding plate (302). A feeding head (304) adapted to the placement groove (204) is fixedly connected to one end of the outer side of the feeding rail (303).
4. The production and testing device for positive electrode materials of power batteries according to claim 1, characterized in that, The testing mechanism (4) includes a testing frame (401) fixedly connected to the surface of the processing table (1). A second electric push rod (402) for longitudinal adjustment is fixedly connected to the surface of the testing frame (401). A scanning electron microscope (403) adapted to the rotating disk (202) is fixedly connected to the surface of the piston rod of the second electric push rod (402). A positioning ring (404) adapted to the scanning electron microscope (403) is fixedly connected to the surface of the testing frame (401). A control panel (405) is fixedly connected to the surface of the testing frame (401).
5. The production and testing device for positive electrode materials of power batteries according to claim 1, characterized in that, The defective unloading mechanism (5) includes an unloading rack (501) fixedly connected to the surface of the processing table (1). A first electric slide (502) for horizontal adjustment is fixedly connected to the surface of the unloading rack (501). A second electric slide (503) for longitudinal adjustment is fixedly connected to the surface of the moving part of the first electric slide (502). A vacuum suction cup (504) is fixedly connected to the surface of the moving part of the second electric slide (503). A placement seat (505) is fixedly connected to the surface of the unloading rack (501). A plurality of placement rollers (506) are rotatably connected to the surface of the placement seat (505).
6. The production and testing device for positive electrode materials of power batteries according to claim 1, characterized in that, The surfaces on both sides of the conveying rail (6) are fixedly connected to a first electric push rod (7), and the surface of the piston rod of the first electric push rod (7) is fixedly connected to a limit plate (8).