Battery positive electrode auxiliary agent testing device
The dual mixing of battery positive electrode additives is achieved by using a rotating plate driven by a servo motor and a gear transmission system, which solves the problem of uneven mixing in traditional devices, improves detection accuracy and experimental repeatability, and extends the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU BAIKILOMETER NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional battery cathode additive detection devices struggle to achieve multi-stage mixing of varying intensities, resulting in uneven dispersion, agglomeration, and large sedimentation deviations, which affect detection accuracy and experimental repeatability.
A servo motor-driven rotating plate and gear transmission system are used to achieve dual mixing of the positive electrode additive in the liquid storage tank. Combined with a detachable liquid storage tank and multiple raw material tubes, the uniformity of mixing and consistency of conditions are ensured.
It improves the mixing effect of positive electrode additives, reduces agglomeration and sedimentation deviation, enhances detection accuracy and experimental repeatability, and extends the service life of the device.
Smart Images

Figure CN224553010U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery additive testing technology, and in particular to a testing device for battery positive electrode additives. Background Technology
[0002] Positive electrode additives are additives used to improve the performance of positive electrode materials. They generally do not participate in the discharge reaction. They are mainly divided into: conductive additives (to improve electron conduction and conductive network), binders / bonding promoters (to enhance coating adhesion and mechanical strength), surface modifiers / coupling agents (to improve wetting and dispersion, and interfacial bonding), electron / ion conduction enhancers (to improve transmission efficiency), and stabilizers / interfacial regulators (to reduce side reactions and improve thermal stability).
[0003] However, traditional devices often only involve simple stirring or single-stage mixing, making it difficult to achieve multi-stage mixing strategies with different intensities. This results in uneven dispersion, large agglomeration and sedimentation deviations, and difficulty in achieving a consistent mixing trajectory between different formulations, leading to signal fluctuations and poor data repeatability between batches.
[0004] Therefore, those skilled in the art have provided a detection device for battery positive electrode additives to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a detection device for battery positive electrode additives. This device includes a mixing mechanism. A servo motor drives a rotating plate to rotate, thereby controlling the mixing racks to initially mix the positive electrode additives in the storage tank. Under gear transmission, multiple mixing racks on the rotating plate can simultaneously and independently rotate a second time, completing a double mixing of the positive electrode additives. This double mixing structure further enhances the mixing effect of the positive electrode additives, resulting in more uniform dispersion of positive electrode additives of different particle sizes and morphologies, reducing deviations caused by agglomeration and sedimentation, and thus improving the accuracy of the detector. The simultaneous and independent second rotation allows the device to mix different battery positive electrode additives and auxiliary agents while maintaining consistent mixing conditions each time, improving the repeatability of the experiment.
[0006] To achieve the above objectives, the present invention provides the following technical solution: A detection device for battery positive electrode additives includes a detector. A mixing mechanism is provided on the upper part of the outer wall of the front end of the detector. The mixing mechanism includes a liquid infusion tube and a fixed base. Multiple raw material tubes are fixedly connected to the four sides of the upper surface of the fixed base. A delivery tube is fixedly connected to the rear end of the middle part of the upper surface of the fixed base. A servo motor is fixedly connected to the center of the upper surface of the fixed base. A sealing block is fixedly connected to the front end of the lower surface of the fixed base. A liquid storage cylinder is threaded onto the lower surface of the sealing block. A rotating plate is rotatably connected to the upper end of the inner wall of the sealing block. Rotating shafts are rotatably connected to the four sides of the lower surface of the rotating plate. A mixing frame is fixedly connected to the lower end of the outer wall of the rotating shaft. A drive gear is fixedly connected to the upper surface of the rotating shaft. A transmission groove is opened at the center of the front end of the lower surface of the fixed base. An internal gear is fixedly connected to the inner wall of the transmission groove.
[0007] Through the above technical solution, the device is equipped with multiple raw material pipes and a detachable liquid storage tank. This allows users to add suitable auxiliary agents through the raw material pipes according to the testing requirements, thereby facilitating a more comprehensive test of the battery positive electrode additives. The detachable liquid storage tank also makes it easier for users to maintain and clean the device, thus extending its service life.
[0008] Furthermore, the infusion tube is fixedly connected to the upper end of the middle of the outer wall of the front end of the detector, and a connecting tube is fixedly connected to the front end of the infusion tube. The end of the connecting tube away from the infusion tube is fixedly connected to the delivery tube. The above technical solution enables users to use a Phillips screwdriver and Phillips screws to fix, install, replace, or disassemble the infusion tubing, connecting tubing, and delivery tubing.
[0009] Furthermore, the fixing base is fixedly connected to the middle of the outer wall of the front end of the detector, and a fiber filter screen is fixedly connected to the lower end of the inner wall of the delivery pipe. The above technical solution enables the metal fiber filter to reduce the possibility of impurities from the battery positive electrode additive entering the equipment.
[0010] Furthermore, a connecting block is fixedly connected to the center of the upper surface of the rotating plate, and the output end of the servo motor is fixedly connected to the connecting block; The above technical solution enables the servo motor to connect to the block and drive the rotating plate to rotate.
[0011] Furthermore, a threaded groove is provided on the outer side of the lower surface of the sealing block, and a threaded block is fixedly connected to the upper surface of the liquid storage cylinder; The above technical solution enables users to install or remove the liquid storage cylinder from the sealing block via thread.
[0012] Furthermore, the drive gear meshes with the internal gear; The above technical solution enables multiple rotating shafts to control the synchronous rotation of the mixing frame.
[0013] Furthermore, a base is fixedly connected to the lower part of the outer wall of the front end of the detector; The above technical solution supports the device by setting a base, which also facilitates the disassembly and replacement of the liquid storage cylinder.
[0014] Furthermore, a control screen is provided on the upper surface of the detector; The above technical solution enables users to operate the detector by setting up a control panel.
[0015] This utility model has the following beneficial effects: 1. The battery positive electrode additive detection device proposed in this utility model, compared with most traditional battery positive electrode additive detection devices, is equipped with a mixing mechanism. A servo motor can drive the rotating plate to rotate, thereby controlling the mixing rack to initially mix the positive electrode additive in the storage cylinder. Under the transmission of gears, multiple mixing racks on the rotating plate can synchronously and independently rotate twice, completing the double mixing of the positive electrode additive. The double mixing structure further improves the mixing effect of the positive electrode additive, thereby more evenly dispersing positive electrode additives of different particle sizes and shapes, reducing deviations caused by agglomeration and sedimentation, and thus improving the detection accuracy of the detector. The synchronous and independent second rotation enables the device to mix different battery positive electrode additives and auxiliary agents, while maintaining consistent mixing conditions each time, improving the repeatability of the experiment.
[0016] 2. The battery positive electrode additive testing device proposed in this utility model, compared with most traditional battery positive electrode additive testing devices, is equipped with multiple raw material tubes and a detachable liquid storage tank. This allows users to add suitable auxiliary agents through the raw material tubes according to the testing requirements, thereby facilitating a more comprehensive testing of the battery positive electrode additive. The detachable liquid storage tank also makes it easier for users to maintain and clean, thus extending the service life of the device. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the detection device for battery positive electrode additives proposed in this utility model; Figure 2 This is a schematic diagram of the mixing mechanism of the detection device for battery positive electrode additives proposed in this utility model; Figure 3 This is a schematic diagram of the sealing block structure of the detection device for battery positive electrode additives proposed in this utility model; Figure 4 This is a schematic diagram of the rotating plate structure of the detection device for battery positive electrode additives proposed in this utility model; Figure 5 This is a schematic diagram of the transmission groove structure of the detection device for battery positive electrode additives proposed in this utility model.
[0018] Legend: 1. Detector; 2. Mixing mechanism; 201. Infusion pipe; 202. Connecting pipe; 203. Fixing base; 204. Raw material pipe; 205. Conveying pipe; 206. Fiber filter screen; 207. Servo motor; 208. Sealing block; 209. Threaded groove; 2010. Liquid storage cylinder; 2011. Threaded block; 2012. Rotating plate; 2013. Connecting block; 2014. Rotating shaft; 2015. Mixing frame; 2016. Drive gear; 2017. Transmission groove; 2018. Internal gear; 3. Base; 4. Control screen. Detailed Implementation
[0019] 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.
[0020] One embodiment of this utility model is provided: Reference Figure 1 , 24. A detection device for battery positive electrode additives, including a detector 1. A mixing mechanism 2 is provided on the upper part of the outer wall of the front end of the detector 1. The mixing mechanism 2 includes a liquid delivery pipe 201 and a fixed base 203. Multiple raw material pipes 204 are fixedly connected to the four sides of the upper surface of the fixed base 203. A delivery pipe 205 is fixedly connected to the rear end of the middle part of the upper surface of the fixed base 203. A servo motor 207 is fixedly connected to the center of the upper surface of the fixed base 203. A sealing block 208 is fixedly connected to the front end of the lower surface of the fixed base 203. A liquid storage cylinder 2010 is threadedly fitted to the lower surface of the sealing block 208. A rotating plate 2012 is rotatably connected to the upper end of the inner wall of the sealing block 208. The four sides of the lower surface of the rotating plate 2012 are rotatably connected to... The device includes a rotating shaft 2014, with a mixing frame 2015 fixedly connected to the lower end of the outer wall of the rotating shaft 2014. A drive gear 2016 is fixedly connected to the upper surface of the rotating shaft 2014. A transmission groove 2017 is provided at the center of the front end of the lower surface of the fixed base 203. An internal gear 2018 is fixedly connected to the inner wall of the transmission groove 2017. The device is equipped with multiple raw material pipes 204 and a detachable liquid storage tank 2010. This allows the user to add suitable auxiliary agents through the raw material pipes 204 according to the testing requirements, thereby facilitating a more comprehensive testing of the battery positive electrode additive. The detachable liquid storage tank 2010 also facilitates maintenance and cleaning by the user, thereby extending the service life of the device.
[0021] Reference Figure 2 , 3 5. The infusion tube 201 is fixedly connected to the upper end of the middle of the outer wall of the front end of the detector 1. The front end of the infusion tube 201 is fixedly connected to the connecting tube 202. The end of the connecting tube 202 away from the infusion tube 201 is fixedly connected to the delivery tube 205. This allows the user to fix, install, replace, or disassemble the infusion tube 201, the connecting tube 202, and the delivery tube 205 using a Phillips screwdriver and Phillips screws. The fixing seat 203 is fixedly connected to the middle of the outer wall of the front end of the detector 1. The lower end of the inner wall of the delivery tube 205 is fixedly connected to the fiber filter 206. This allows the metal fiber filter 206 to reduce the possibility of impurities from the battery positive electrode additive in the liquid storage cylinder 2010 entering the device.
[0022] Reference Figure 2 , 34. A connecting block 2013 is fixedly connected to the center of the upper surface of the rotating plate 2012. The output end of the servo motor 207 is fixedly connected to the connecting block 2013, so that the servo motor 207 can drive the rotating plate 2012 to rotate through the connecting block 2013. A threaded groove 209 is opened on the outer side of the lower surface of the sealing block 208. A threaded block 2011 is fixedly connected to the upper surface of the liquid storage cylinder 2010, so that the user can install or remove the liquid storage cylinder 2010 on the sealing block 208 by thread. The drive gear 2016 meshes with the internal gear 2018, so that multiple rotating shafts 2014 can control the mixing frame 2015 to rotate synchronously.
[0023] Reference Figure 1 A base 3 is fixedly connected to the lower part of the outer wall of the front end of the detector 1. The device is supported by the base 3, which also facilitates the disassembly and replacement of the liquid storage cylinder 2010. A control panel 4 is provided on the upper surface of the detector 1, which allows the user to operate the detector 1.
[0024] Working principle: First, the reservoir 2010 storing the required battery positive electrode additive is threaded into the threaded groove 209 on the sealing block 208. The servo motor 207 is then activated to drive the rotating plate 2012 to rotate, thereby controlling the rotation of multiple mixing racks 2015 to initially mix the battery positive electrode additive in the reservoir 2010. Under the meshing transmission of the internal gear 2018 and the drive gear 2016, the mixing racks 2015 rotate independently while rotating with the rotating plate 2012, thus more evenly dispersing the positive electrode additives of different particle sizes and shapes. The agent reduces the deviation caused by agglomeration and sedimentation. With the help of the water pump installed in the detector 1 (light scattering / laser particle size analyzer), the processed positive electrode additive is transferred to the detection module in the detector 1 through the delivery pipe 205 for detection. The particle size distribution is inferred by the change of light scattering intensity over time or angle. The user can connect the auxiliary agent pipeline externally through the cross screw to detect different states of the positive electrode additive. The mixing rack 2015 inside can be cleaned by rotating the liquid storage tank 2010. After that, the liquid storage tank 2010 is replaced to extend its service life.
[0025] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.
[0026] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A detection device for battery positive electrode additives, comprising a detector (1), characterized in that: A mixing mechanism (2) is provided on the upper part of the outer wall of the front end of the detector (1). The mixing mechanism (2) includes an infusion tube (201) and a fixed seat (203). Multiple raw material tubes (204) are fixedly connected around the upper surface of the fixed seat (203). A delivery tube (205) is fixedly connected to the rear end of the middle part of the upper surface of the fixed seat (203). A servo motor (207) is fixedly connected to the center of the upper surface of the fixed seat (203). A sealing block (208) is fixedly connected to the front end of the lower surface of the fixed seat (203). The lower surface of the sealing block (208) is threaded. The container has a liquid storage cylinder (2010). The upper end of the inner wall of the sealing block (208) is rotatably connected to a rotating plate (2012). Rotating shafts (2014) are rotatably connected to all four sides of the lower surface of the rotating plate (2012). A mixing frame (2015) is fixedly connected to the lower end of the outer wall of the rotating shaft (2014). A drive gear (2016) is fixedly connected to the upper surface of the rotating shaft (2014). A transmission groove (2017) is opened at the center of the front end of the lower surface of the fixed seat (203). An internal gear (2018) is fixedly connected to the inner wall of the transmission groove (2017).
2. The detection device for battery positive electrode additives according to claim 1, characterized in that: The infusion tube (201) is fixedly connected to the upper end of the middle of the outer wall of the front end of the detector (1). The front end of the infusion tube (201) is fixedly connected to the connecting tube (202), and the end of the connecting tube (202) away from the infusion tube (201) is fixedly connected to the delivery tube (205).
3. The detection device for battery positive electrode additives according to claim 1, characterized in that: The fixing seat (203) is fixedly connected to the middle of the outer wall of the front end of the detector (1), and the lower end of the inner wall of the conveying pipe (205) is fixedly connected to a fiber filter (206).
4. The detection device for battery positive electrode additives according to claim 1, characterized in that: A connecting block (2013) is fixedly connected to the center of the upper surface of the rotating plate (2012), and the output end of the servo motor (207) is fixedly connected to the connecting block (2013).
5. The detection device for battery positive electrode additives according to claim 1, characterized in that: The sealing block (208) has a threaded groove (209) on the outer side of its lower surface, and the liquid storage cylinder (2010) has a threaded block (2011) fixedly connected to its upper surface.
6. The detection device for battery positive electrode additives according to claim 1, characterized in that: The drive gear (2016) meshes with the internal gear (2018).
7. The detection device for battery positive electrode additives according to claim 1, characterized in that: The detector (1) has a base (3) fixedly connected to the lower part of the outer wall of the front end.
8. The detection device for battery positive electrode additives according to claim 1, characterized in that: The detector (1) is provided with a control screen (4) on its upper surface.