Film rolling device for solid-state battery

By introducing an adjustable film-forming roller pressure detector and a heat conductor into the solid-state battery film-forming device, the problem of unadjustable film-forming roller pressure was solved, achieving uniformity of electrode film thickness, improving battery performance and safety, and reducing energy consumption.

CN223815744UActive Publication Date: 2026-01-20ZHEJIANG XINGKAI TECH CO LTD
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Patent Information

Application Number
CN202422916985.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2026-01-20
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

In existing solid-state battery film rolling devices, the pressure of the film forming roller is not adjustable, resulting in uneven electrode film thickness, which affects battery performance and safety.

Method used

By introducing an adjustable film-forming roller pressure detector and a heat conductor into the film-forming device, dynamic adjustment of the film-forming roller pressure and temperature control can be achieved, ensuring the uniformity of electrode film thickness.

Benefits of technology

It improves the uniformity of electrode film thickness, enhances the overall performance and safety of the battery, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a solid-state battery film rolling device which comprises a film rolling table, a control piece is assembled on the film rolling table, the control piece comprises a control table, a connecting seat is arranged in an inner groove of the control table, and a driving piece is arranged at the lower end of the connecting seat; the film forming part is assembled below the driving parts, the film forming part comprises a side position frame, a film forming roller is used in cooperation, powder is rolled and formed into an electrode film, the driving parts are arranged at the two ends of the connecting base, specifically, the driving parts are air cylinders, and the driving parts at the two ends can achieve synchronous operation through PLC programming; the side position frame can be driven by the driving pieces at the two ends to move up and down, the pressure between the film forming roller and materials can be adjusted by adjusting the vertical height of the side position frame, and when the side position frame moves downwards, the downward pressing pressure value of the side position frame can be detected through the pressure detector arranged below the side position frame. The pressure value of the film forming roller can be speculated through the pressure value of the side frame.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rolling device technical field, especially to a kind of solid battery rolling device. BACKGROUND

[0002] Solid rolling device is a kind of automation equipment for battery material preparation, electrode film is formed and is compounded by dry process, solid rolling device uses solventless dry manufacturing process, avoids the process of coating drying in traditional wet process, thereby reduce energy consumption and production cost.

[0003] In the existing solid battery rolling device, usually including material preparation, once hot-pressing film, secondary roller shaping, composite film and winding, wherein, solid electrolyte powder or positive material is added into feed bin first, ensure that material is sufficient, the flow of material is controlled by automatic valve, to ensure the consistency and stability of material feeding, then first film forming roller and second film forming roller are calendered into preliminary electrode film, the electrode film after preliminary forming enters secondary roller shaping assembly, further optimizes its flatness and thickness consistency, through multiple different temperature and pressure roller rolling, form the electrode film with uniform thickness, finally, the electrode film with uniform thickness is wound, but the device has certain defects, the film forming roller pressure in the device is constant, without adjustability, and the pressure of film forming roller cannot be adjusted, which will be difficult to control the thickness consistency of electrode film, which may cause some areas to be too thick or too thin, affect the overall performance and safety of battery, therefore, a solid battery rolling device is proposed. SUMMARY

[0004] Therefore, it is necessary to provide a solid battery rolling device to adjust the pressure of film forming roller, by adjusting the pressure of film forming roller, the thickness of electrode film of each batch can be ensured to be more uniform, to avoid the situation that some areas are too thick or too thin, thereby improving the overall performance and safety of battery.

[0005] To solve the above technical problems, the utility model solves the problems proposed in the above background technology through the following technical solutions.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A solid battery rolling device, comprising:

[0008] Rolling table, the rolling table is equipped with control piece, the control piece includes control console, the control console inner groove is equipped with connecting seat, the connecting seat lower end is equipped with driving piece;The film forming piece is assembled below driving piece, and the film forming piece includes side position frame, and the side position frame is equipped with film forming roller below.

[0009] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the control console inner cavity is provided with a screw rod, the screw rod is connected with a control component, the control component is a motor, and the control component is assembled on one side of the side frame.

[0010] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the driving piece is a cylinder, one end of the driving piece is provided with a connecting block, and the driving piece is connected with the side frame through the connecting block.

[0011] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the control piece further comprises a plurality of positioning frames, a plurality of groups of the positioning frames are welded with the control console, and the plurality of groups of the positioning frames of the control console are embedded in the embedding groove of the rolling table.

[0012] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the control console bottom is provided with a supporting leg, and the supporting leg bottom is designed in a rubber material structure.

[0013] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the film forming piece further comprises a heat conduction device mounted on both sides of the side frame, the heat conduction device is connected with the heating rod through a heat conduction interface at one end, and the heating rod is mounted in the cavity of the film forming roller.

[0014] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the roller surface material of the film forming roller is an anti-adhesion plating layer.

[0015] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the heat conduction section of the heating rod is completely attached to the inner wall of the film forming roller.

[0016] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the lower end of the side frame on both sides is further provided with a pressure detector, and the pressure detector is associated with the driving piece through PLC programming technology.

[0017] As a preferred embodiment of the solid-state battery rolling device provided by the utility model, the pressure detector is connected with the side frame through a spring, wherein the spring has a fixed block at each end, and the two fixed blocks are connected with the side frame and the pressure detector respectively.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The solid-state battery film rolling device provided by the utility model, when in use, through the starting of the driving part, through the driving part being a motor, through the cooperation of the screw rod and the connecting seat, the film forming roller can be driven to move back and forth on the film rolling table, through the cooperation of the film forming roller, the powder material is calendered into an electrode film, through the driving part being provided at both ends of the connecting seat, through the driving part being a cylinder, the driving parts at both ends can realize synchronous operation through PLC programming, the side frame can be driven to move up and down through the driving parts at both ends, through the adjustment of the up and down height of the side frame, the pressure between the film forming roller and the material can be adjusted, when the side frame moves downward, the pressure detector provided below the side frame is used, the pressure value of the downward pressure of the side frame can be detected through the pressure detector, the pressure value of the film forming roller can be inferred through the pressure value of the side frame.

[0020] The solid-state battery film rolling device provided by the utility model, through the cooperation of the screw rod and the connecting seat, the film forming roller can be driven to move back and forth on the film rolling table, through the cooperation of the film forming roller, the powder material is calendered into an electrode film, through the driving part being provided at both ends of the connecting seat, through the driving part being a cylinder, the driving parts at both ends can realize synchronous operation through PLC programming, the side frame can be driven to move up and down through the driving parts at both ends, through the adjustment of the up and down height of the side frame, the pressure between the film forming roller and the material can be adjusted, when the side frame moves downward, the pressure detector provided below the side frame is used, the pressure value of the downward pressure of the side frame can be detected through the pressure detector, the pressure value of the film forming roller can be inferred through the pressure value of the side frame. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0022] Figure 1 The first perspective structural schematic view of the utility model is provided.

[0023] Figure 2 The second perspective structural schematic view of the utility model is provided.

[0024] Figure 3 The control part and the film forming part connection structural schematic view of the utility model is provided.

[0025] Figure 4 The film forming roller installation structural schematic view of the utility model is provided.

[0026] Figure 5 The pressure detector installation structural schematic view of the utility model is provided.

[0027] Figure 6 The film forming part partial structural schematic view of the utility model is provided.

[0028] The mark in the drawing is explained as follows:

[0029] 100, rolling table; 101, embedded groove; 102, supporting leg; 200, control member; 201, positioning frame; 202, control console; 203, control component; 204, screw rod; 205, connecting seat; 206, driving member; 207, connecting block; 300, film forming member; 301, side frame; 302, film forming roller; 303, heat conduction device; 304, cavity; 305, heating rod; 306, heat conduction interface; 400, pressure detection member; 401, pressure detector; 402, spring; 403, fixed block. DETAILED DESCRIPTION

[0030] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application. EMBODIMENT

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , a solid-state battery rolling device, a rolling table 100, the rolling table 100 is equipped with a control member 200, the control member 200 includes a control console 202, the control console 202 is provided with a connecting seat 205 in the groove, the lower end of the connecting seat 205 is provided with a driving member 206; the film forming member 300 is assembled below the driving member 206, and the film forming member 300 includes a side frame 301, and the film forming roller 302 is arranged below the side frame 301.

[0032] In the embodiment of the present application, the inner cavity of the console 202 is provided with a screw rod 204 connected with a control component 203, which is specifically a motor, and the control component 203 is assembled on one side of the side frame 301. The driving member 206 is specifically a cylinder, and one end of the driving member 206 is provided with a connecting block 207, and the driving member 206 is connected with the side frame 301 through the connecting block 207. The control member 200 further comprises a plurality of positioning frames 201, and the plurality of positioning frames 201 are welded with the console 202. The plurality of positioning frames 201 of the console 202 are embedded in the embedded groove 101 of the film rolling table 100. The bottom of the console 202 is provided with a supporting leg 102, and the bottom of the supporting leg 102 is designed of rubber material structure. The lower ends of the two sides of the side frame 301 are further provided with a pressure detection member 400, which comprises a pressure detector 401. The pressure detector 401 is associated with the driving member 206 through PLC programming technology, and the pressure detector 401 is connected with the side frame 301 through a spring 402. The two ends of the spring 402 are respectively provided with a fixed block 403, and the two fixed blocks 403 are respectively connected with the spring 402 and the side frame 301 and the pressure detector 401. In use, the driving member 206 is started, and the driving member 206 is specifically a motor. Through the cooperation of the screw rod 204 and the connecting seat 205, the film forming roller 302 can be driven to move forward and backward on the film rolling table 100. Through the cooperation of the film forming roller 302, the powder material is extruded and formed into an electrode film. The driving member 206 is provided at both ends of the connecting seat 205, and the driving member 206 is specifically a cylinder. The driving members 206 at both ends can realize synchronous operation through PLC programming. The driving members 206 at both ends can drive the side frame 301 to move up and down. Through the adjustment of the height of the side frame 301, the pressure between the film forming roller 302 and the material can be adjusted. When the side frame 301 moves downward, the pressure detector 401 arranged below the side frame 301 can detect the pressure value of the side frame 301. The pressure value of the side frame 301 can be used to estimate the pressure value of the film forming roller 302.

[0033] In the embodiment of the application, the film forming part 300 further comprises a heat conducting device 303 installed on both sides of the side frame 301, the heat conducting device 303 is connected with the heating rod 305 through a heat conducting interface 306 at one end, the heating rod 305 is installed in the cavity 304 of the film forming roller 302, the roller surface material of the film forming roller 302 is an anti-bonding coating layer, the heat conducting section of the heating rod 305 is completely attached to the inner wall of the film forming roller 302, by arranging the heat conducting device 303 on both sides of the side frame 301, when in use, the external power source is connected with the heat conducting device 303, the heating rod 305 can be heated through the driving of the heat conducting device 303, by installing the heating rod 305 in the film forming roller 302, the temperature of the film forming roller 302 can be improved, which is helpful for the softening of the solid electrolyte or the positive material, so that the solid electrolyte or the positive material is more easily shaped, compared with the traditional external heating mode, the built-in heating rod 305 can more efficiently transfer heat, thereby reducing the overall energy consumption.

[0034] The use process of the solid-state battery film rolling device is as follows: when in use, the film forming roller 302 is driven to move back and forth on the film rolling table 100 by starting the driving part 206, the powder is pressed and formed into an electrode film through the cooperation of the film forming roller 302, the side frame 301 is driven to move up and down through the driving part 206 at both ends, the pressure between the film forming roller 302 and the material can be adjusted through the adjustment of the up and down height of the side frame 301, when the side frame 301 moves downward, the pressure value of the downward pressure of the side frame 301 can be detected through the pressure detector 401 arranged below the side frame 301, the pressure value of the film forming roller 302 can be inferred through the pressure value of the side frame 301, and the heating rod 305 can be heated through the driving of the heat conducting device 303 connected with the external power source, the temperature of the film forming roller 302 can be improved through the installation of the heating rod 305 in the film forming roller 302.

[0035] In the application, unless otherwise specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected or in communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements, unless otherwise specified. For ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0036] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A solid-state battery rolling device, characterized by, It includes: Rolling film table (100), the rolling film table (100) is equipped with control part (200), the control part (200) includes control console (202), the control console (202) is equipped with connecting seat (205) in groove, the lower end of connecting seat (205) is equipped with driving part (206); Film forming part (300), the film forming part (300) is equipped below driving part (206), the film forming part (300) includes side position frame (301), and the lower end of side position frame (301) is equipped with film forming roller (302).

2. The solid-state battery rolling device of claim 1, wherein, The inner cavity of control console (202) is equipped with screw rod (204), and the screw rod (204) is connected with control component (203), and the control component (203) is specifically motor, and the control component (203) is assembled on one side of side position frame (301).

3. The solid-state battery film rolling device according to claim 1, wherein The driving part (206) is specifically a cylinder, and the driving part (206) is equipped with a connecting block (207) at one end, and the driving part (206) is connected with the side position frame (301) through the connecting block (207).

4. The solid-state battery film rolling device according to claim 1, wherein, The control part (200) further includes a plurality of positioning frames (201), and a plurality of positioning frames (201) are welded with the control console (202), and the plurality of positioning frames (201) of the control console (202) are embedded in the embedding groove (101) of the rolling film table (100).

5. The solid-state battery roll device of claim 4, wherein, The bottom of control console (202) is equipped with support leg (102), and the bottom of support leg (102) is designed as rubber material structure.

6. The solid-state battery roll device of claim 1, wherein, The film forming part (300) further includes heat conduction device (303) installed on both sides of side position frame (301), and the heat conduction device (303) is connected with heating rod (305) through heat conduction interface (306) at one end, and the heating rod (305) is installed in the cavity (304) of film forming roller (302).

7. The solid-state battery film rolling device of claim 1, wherein, The roller surface material of film forming roller (302) is anti-sticking plating layer.

8. The solid-state battery roll device of claim 6, wherein, The heat conduction section of heating rod (305) is completely combined with the inner wall of film forming roller (302).

9. The solid-state battery film rolling device of claim 1, wherein, The lower end of both sides of side position frame (301) is further provided with pressure detection part (400), and the pressure detection part (400) includes pressure detector (401), and the pressure detector (401) is associated with driving part (206) through PLC programming technology.

10. The solid-state battery roll device of claim 9, wherein, The pressure detector (401) is connected with the side position frame (301) through spring (402), wherein the spring (402) has a fixed block (403) at both ends, and the two fixed blocks (403) are connected to the side position frame (301) and the pressure detector (401) respectively.