A solid-state battery electrostatic film forming machine facilitating collection of electrostatic spray powder

Abstract

This invention discloses a solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder. It includes a housing, an inner mesh, a film-forming substrate located below the mesh, and an electrostatic generator electrically connected to the mesh or substrate. A collection component for collecting electrostatic spraying powder is connected below the substrate. The collection component is equipped with a detachable connection device, allowing it to be detached from the substrate. This invention integrates the collection component inside the electrostatic film-forming machine, enabling convenient and quick removal of the collected powder, avoiding dust and cross-contamination during cleaning, thus achieving direct recycling and reuse of the powder material. Ultimately, this reduces the manufacturing cost of solid-state batteries, improves production efficiency, and promotes green manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic deposition technology, and in particular to a solid battery electrostatic film forming machine that facilitates the collection of electrostatic spraying powder. Background Technology

[0002] Electrostatic film formation technology, especially electrostatic spraying technology, is an advanced process that uses a high-voltage electrostatic field to directionally adsorb charged powder particles onto a grounded substrate. This technology has shown great application potential in the field of solid-state battery manufacturing because it can produce uniform, dense, and controllable thickness electrode or solid electrolyte films, which is crucial for improving the energy density and cycle life of batteries.

[0003] In the traditional electrostatic film deposition process for solid-state batteries, powder particles fly towards and adhere to the substrate under the influence of an electrostatic field. However, due to factors such as electric field distribution, powder characteristics, and process parameters, some powder will inevitably fail to deposit effectively on the substrate, forming oversprayed powder. This oversprayed powder will be scattered inside the equipment cavity, not only causing serious waste of expensive active materials and increasing production costs, but also potentially contaminating the inside of the equipment, affecting film quality and the stability of equipment operation. Regularly cleaning this powder will not only increase maintenance costs but also interrupt production and reduce efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a solid-state battery electrostatic film-forming machine that facilitates the collection of electrostatic spraying powder. The collection component is integrated inside the electrostatic film-forming machine, and the collected powder can be easily and quickly removed, avoiding dust and cross-contamination during the cleaning process. This enables the direct recycling and reuse of powder materials, ultimately reducing the manufacturing cost of solid-state batteries, improving production efficiency, and promoting green manufacturing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a solid battery electrostatic film forming machine for easy collection of electrostatic spraying powder, comprising a housing, a wire mesh, a film forming substrate located below the wire mesh, and an electrostatic generator electrically connected to the wire mesh or the film forming substrate, wherein a collection component for collecting electrostatic spraying powder is connected below the film forming substrate, and a detachable connection device is provided on the collection component, wherein the detachable connection device allows the collection component to be detached from the film forming substrate.

[0006] By adopting the above technical solution, electrolyte powder that fails to be effectively deposited on the film-forming substrate can be collected, avoiding waste of electrolyte powder and reducing production costs. In addition, by setting up a detachable connection device, the collected electrolyte powder can be cleaned out from the shell, which not only avoids the overflowing electrolyte powder from contaminating the inside of the equipment and affecting the film quality and the stability of equipment operation, but also reduces the maintenance costs increased by regularly cleaning these powders.

[0007] A further feature of this invention is that the collecting assembly includes a collecting tray abutting below the film-forming substrate and a powder collector disposed below the collecting tray, wherein the detachable connecting device allows the powder collector to be separated from the collecting tray.

[0008] A further feature of this invention is that: a support base is provided on the powder collector, a positioning base corresponding to the position of the support base is provided at the bottom of the collecting tray, a positioning groove is provided on the support base to accommodate the positioning base, the positioning groove fits the outer contour of the positioning base, and the detachable connecting device includes a bolt that passes through the positioning base and the support base.

[0009] By adopting the above technical solution, and by setting up a support base and a positioning base, the powder collector is provided with support force, so that the powder collector can maintain the effect of collecting powder.

[0010] A further feature of this invention is that a flow guide shroud is provided between the collecting tray and the wire mesh, the flow guide shroud is provided with a flow guide surface in the circumferential direction, and the flow guide surface is inclined toward the central axis of the collecting tray.

[0011] By adopting the above technical solution, it is ensured that all electrolyte powders that are screened onto the film-forming substrate and fail to be effectively deposited on the film-forming substrate can be collected.

[0012] A further feature of this invention is that the collecting tray is provided with a discharge port corresponding to the position of the powder collector, and the collecting tray is provided with an inclined surface that is inclined toward the discharge port.

[0013] By adopting the above technical solution, the powder falling into the collection plate can slide out from the feed port along the inclined surface under the action of gravity.

[0014] A further feature of this invention is that the collecting tray is disc-shaped, and the contour formed by the inclined surfaces is U-shaped.

[0015] By adopting the above technical solution, the guiding dead angle is avoided, which would prevent some powder from being discharged from the feed port. The flow path is optimized so that the powder on the collection plate can slide out from the feed port to the powder collector along the inclined surface.

[0016] A further feature of this invention is that the outer shell includes an upper shell and a lower shell, a partition is provided between the upper shell and the lower shell, the upper shell and the partition together define an operating cavity for accommodating the wire mesh and the film-forming substrate, and the lower shell and the partition together define a control cavity for accommodating the electrostatic generator.

[0017] By adopting the above technical solution, different areas are divided in space according to the different functions of the screen, film-forming substrate and electrostatic generator, resulting in a reasonable layout that facilitates inspection and maintenance.

[0018] A further feature of this invention is that an XYZ fine-tuning platform is provided below the film-forming substrate, and the XYZ fine-tuning platform is used to adjust the spatial position of the film-forming substrate.

[0019] A further feature of this invention is that a control panel is provided on the outer shell, and the control panel is electrically connected to the controller inside the electrostatic film forming machine.

[0020] By adopting the above technical solution, the electrostatic generator can be turned on and off, and the magnitude of the discharge voltage can be controlled through the control panel, making operation more convenient.

[0021] A further feature of this invention is that a support is provided inside the outer shell, and the wire mesh is hinged to the support.

[0022] By adopting the above technical solution, it is convenient to disassemble the film-forming substrate.

[0023] In summary, this utility model has the following beneficial effects: A collection component for collecting electrostatic spraying powder is used to collect electrolyte powder that fails to be effectively deposited on the film-forming substrate, thus avoiding waste of electrolyte powder and reducing production costs. The collection component is equipped with a detachable connection device, which allows the collected electrolyte powder to be cleaned out of the shell, preventing spilled electrolyte powder from contaminating the inside of the equipment and affecting the film quality and the stability of equipment operation, while also reducing the maintenance costs increased by regularly cleaning up these powders. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention.

[0025] Figure 2 This is a cross-sectional view of the present invention.

[0026] Figure 3 This is a schematic diagram of the collecting component of this utility model.

[0027] Figure 4 This is a schematic diagram of the internal structure of the collection tray of this utility model.

[0028] Figure 5 This is a cross-sectional view of the present invention used to illustrate the detachable connection device.

[0029] In the diagram: 1. Outer shell; 10. Support; 11. Upper shell; 12. Lower shell; 13. Partition; 14. Operating chamber; 15. Control chamber; 2. Screen mesh; 3. Film-forming substrate; 4. Electrostatic generator; 51. Collection tray; 511. Positioning seat; 512. Feed port; 513. Inclined surface; 52. Powder collector; 521. Support seat; 522. Positioning groove; 6. Bolt; 7. Flow guide; 71. Flow guide surface; 81. X-axis adjustment assembly; 811. First support; 812. X-axis adjustment bolt; 813. First slide; 82. Y-axis adjustment assembly; 821. Second support; 822. Y-axis adjustment bolt; 823. Second slide; 83. Z-axis adjustment assembly; 831. First support arm; 832. Second support arm; 833. Z-axis adjustment knob; 9. Control panel. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] A solid-state battery electrostatic film-forming machine that facilitates the collection of electrostatic spraying powder, such as Figure 1-5 As shown, the device includes a housing 1, inside which is disposed a screen 2, a film-forming substrate 3 located below the screen 2, and an electrostatic generator 4 electrically connected to the screen 2 or the film-forming substrate 3. A collection assembly for collecting electrostatic spraying powder is connected below the film-forming substrate 3. The collection assembly is provided with a detachable connection device, which allows the collection assembly to be detached from the film-forming substrate 3. Dry electrolyte powder is placed above screen 2, and electrostatic generator 4 is activated. The high voltage generated by electrostatic generator 4 is connected to the electrodes of screen 2, charging the electrolyte powder on screen 2. The film-forming substrate 3 is connected to the ground wire and has the opposite charge to the electrolyte powder. According to the principle of attraction between opposite charges, the powder particles are strongly attracted by the grounded film-forming substrate 3 below, thus accurately and vertically penetrating the cutouts of screen 2 and adsorbing onto the substrate surface. This is the basic principle of electrostatic powder coating technology, which will not be elaborated further here. The collection component is set below the film-forming substrate 3 to collect the electrolyte powder that cannot be effectively deposited on the film-forming substrate 3, avoiding waste of electrolyte powder and reducing production costs. In addition, by setting a detachable connection device, the collected electrolyte powder can be cleaned out from the outer shell 1, which not only prevents the spilled electrolyte powder from contaminating the inside of the equipment and affecting the film quality and the stability of equipment operation, but also reduces the maintenance costs increased by regularly cleaning these powders.

[0032] Preferably, the collection assembly includes a collection tray 51 abutting below the film-forming substrate 3, and a powder collector 52 disposed below the collection tray 51. The detachable connection device allows the powder collector 52 to be separated from the collection tray 51. The projection surface of the film-forming substrate 3 is located within the end face formed by the outer contour of the collection tray 51. Electrolyte powder that penetrates from the mesh 2 and fails to be effectively deposited on the film-forming substrate 3 falls into the collection tray 51 by gravity and then falls down the collection tray 51 to the powder collector 52. To increase the falling effect from the collection tray 51 to the powder collector 52, an oscillator can be provided on the collection tray 51 to shake the powder on the collection tray 51 to the powder collector 52 below the collection tray 51. Through the detachable connection device, the powder collector 52 can be easily and quickly removed. By setting the powder collector 52 and the collection tray 51, dust and cross-contamination during the cleaning process are avoided, thereby realizing the direct recycling and reuse of powder materials, reducing the manufacturing cost of solid-state batteries, improving production efficiency, and promoting green manufacturing.

[0033] Preferably, the powder collector 52 is provided with a support base 521, and the bottom of the collection tray 51 is provided with a positioning seat 511 corresponding to the position of the support base 521. The support base 521 is provided with a positioning groove 522 for accommodating the positioning seat 511. The positioning groove 522 fits the outer contour of the positioning seat 511. The detachable connection device includes a bolt 6 that passes through the positioning seat 511 and the support base 521. The support base 521 has a threaded hole for threaded connection with the bolt 6. The bolt 6 passes through the threaded hole and abuts against the positioning base 511, thereby realizing the detachable connection between the powder collector 52 and the positioning base 511. The support base 521 is fixedly connected to the bottom of the powder collector 52. The positioning base 511 is L-shaped, with one end formed at the bottom of the collection tray 51 and the other end extending to below the discharge port 512 of the collection tray 51. The positioning base 511 is inserted into the positioning groove 522 on the support base 521, so that the support base 521 is mounted on the positioning base 511 and the powder collector 52 is located directly below the discharge port 512 of the collection tray 51. By setting the support base 521 and the positioning base 511, the powder collector 52 is provided with support force, so that the powder collector 52 can maintain the effect of collecting powder.

[0034] Preferably, a flow guide shroud 7 is provided between the collection tray 51 and the wire mesh 2. The flow guide shroud 7 is circumferentially provided with a flow guide surface 71, which is inclined toward the central axis of the collection tray 51. One end of the flow guide shroud 7 circumferentially covers the wire mesh 2, and the other end is fixedly connected to the outer contour of the collection tray 51. Electrolyte powder penetrating from the wire mesh 2 to the film-forming substrate 3 falls into the collection tray 51 under the obstruction of the flow guide shroud 7, and then falls from the collection tray 51 to the powder collector 52. The inclined flow guide surface 71 ensures that the powder falling on the flow guide surface 71 falls into the collection tray 51 by gravity, thus ensuring that all electrolyte powder that cannot be effectively deposited on the film-forming substrate 3 in the area between the wire mesh 2 and the film-forming substrate 3 can be collected.

[0035] Preferably, the collecting tray 51 is provided with a discharge port 512 corresponding to the position of the powder collector 52, and the collecting tray 51 is provided with an inclined surface 513, which is inclined towards the discharge port 512. The inclined surface 513 is the bottom surface of the collecting tray 51, and the powder falling into the collecting tray 51 slides out from the discharge port 512 along the inclined surface 513 under the action of gravity.

[0036] Preferably, the collecting tray 51 is disc-shaped, and the contour formed by the inclined surface 513 is U-shaped. The horizontal part of the U is inclined towards the vertical part on both sides, and the vertical part is inclined towards the discharge port 512. Through the above design, the guiding dead angle is avoided, which would prevent some powder from being discharged from the discharge port 512. The guiding path is optimized, so that the powder on the collecting tray 51 can slide out from the discharge port 512 along the inclined surface 513 to the powder collector 52.

[0037] Preferably, the outer casing 1 includes an upper casing 11 and a lower casing 12, with a partition 13 disposed between the upper casing 11 and the lower casing 12. The upper casing 11 and the partition 13 together define an operating cavity 14 for accommodating the wire mesh 2 and the film-forming substrate 3, and the lower casing 12 and the partition 13 together define a control cavity 15 for accommodating the electrostatic generator 4. The partition 13 is fixedly connected to the upper casing 11 and the lower casing 12 respectively, and spatially divides different areas according to the different functions of the wire mesh 2, the film-forming substrate 3, and the electrostatic generator 4, resulting in a reasonable layout that facilitates inspection and maintenance.

[0038] Preferably, an XYZ fine-tuning platform is provided below the film-forming substrate 3. The XYZ fine-tuning platform is used to adjust the spatial position of the film-forming substrate 3. The XYZ fine-tuning platform includes an X-axis adjustment component 81, a Y-axis adjustment component 82, and a Z-axis adjustment component 83. The X-axis adjustment component 81 includes a first support 811, an X-axis adjusting bolt 812 located on the first support 811, and a first slide block 813 abutting against the bottom of the film-forming substrate 3. The first slide block 813 is threadedly connected to the X-axis adjusting bolt 812. The Y-axis adjustment component 82 includes a second support 821, a Y-axis adjusting bolt 822 located on the second support 821, and a first slide block 822 abutting against the bottom of the film-forming substrate 3. A second slide 823 is located below a support 811. The second slide 823 is threadedly connected to a Y-axis adjusting bolt 822. The Z-axis adjusting assembly 83 includes a first support arm 831 and a second support arm 832 abutting below the second support 821, and a Z-axis adjusting knob 833 driven by a lead screw to the first support arm 831. The first support arm 831 and the second support arm 832 are hinged to each other. The Z-axis adjusting knob 833 allows the first support arm 831 to have a displacement path that is closer to or further away from the second support arm 832.

[0039] Preferably, the outer casing 1 is provided with a control panel 9, which is electrically connected to the controller inside the electrostatic film forming machine. The control panel 9 and the electrostatic generator 4 are located in the same circuit, and the control panel 9 can control the opening and closing of the electrostatic generator 4 and the magnitude of the release voltage, making operation more convenient.

[0040] Preferably, a support 10 is also provided inside the outer shell 1, and the wire mesh 2 is hinged to the support 10 to facilitate the disassembly of the film-forming substrate 3.

[0041] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder, comprising a housing (1), wherein a wire mesh (2), a film-forming substrate (3) located below the wire mesh (2), and an electrostatic generator (4) electrically connected to the wire mesh (2) or the film-forming substrate (3) are disposed inside the housing (1), characterized in that: A collection component for collecting electrostatic spraying powder is connected below the film-forming substrate (3). The collection component is provided with a detachable connection device, which allows the collection component to be detached from the film-forming substrate (3).

2. The solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 1, characterized in that: The collection assembly includes a collection tray (51) abutting below the film-forming substrate (3) and a powder collector (52) disposed below the collection tray (51), the detachable connection device separating the powder collector (52) from the collection tray (51).

3. The solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 2, characterized in that: The powder collector (52) is provided with a support base (521), and the bottom of the collection tray (51) is provided with a positioning seat (511) corresponding to the position of the support base (521). The support base (521) is provided with a positioning groove (522) for accommodating the positioning seat (511). The positioning groove (522) fits the outer contour of the positioning seat (511). The detachable connection device includes a bolt (6) that passes through the positioning seat (511) and the support base (521).

4. The solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 2, characterized in that: A flow guide shroud (7) is provided between the collection tray (51) and the wire mesh (2). The flow guide shroud (7) is provided with a flow guide surface (71) in the circumferential direction. The flow guide surface (71) is inclined toward the central axis of the collection tray (51).

5. A solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 2, characterized in that: The collecting tray (51) is provided with a discharge port (512) corresponding to the position of the powder collector (52). The collecting tray (51) is provided with an inclined surface (513) that is inclined toward the discharge port (512).

6. The solid-state battery electrostatic film forming machine for easy collection of electrostatic spraying powder according to claim 4, characterized in that: The collecting tray (51) is disc-shaped, and the contour formed by the inclined surface (513) is U-shaped.

7. The solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 1, characterized in that: The outer shell (1) includes an upper shell (11) and a lower shell (12). A partition (13) is provided between the upper shell (11) and the lower shell (12). The upper shell (11) and the partition (13) together define an operating cavity (14) for accommodating the wire mesh (2) and the film-forming substrate (3). The lower shell (12) and the partition (13) together define a control cavity (15) for accommodating the electrostatic generator (4).

8. A solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 1, characterized in that: An XYZ fine-tuning platform is provided below the film-forming substrate (3), which is used to adjust the spatial position of the film-forming substrate (3).

9. A solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 8, characterized in that: The outer casing (1) is provided with a control panel (9), which is electrically connected to the controller inside the electrostatic film forming machine.

10. A solid-state battery electrostatic film-forming machine for easy collection of electrostatic spraying powder according to claim 1, characterized in that: The outer shell (1) is also provided with a bracket (10), and the wire mesh (2) is hinged to the bracket (10).

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