Perovskite battery piece packaging equipment and technology

Abstract

The invention discloses a packaging device and process of a perovskite cell. The packaging device comprises a support frame; the clamping device comprises two cold plates which are distributed at intervals in the vertical direction and a first driving assembly for driving the two cold plates to move relatively, the first driving assembly is connected with the supporting frame, and the cold plates are connected with a cooling assembly; the fire-jet head is arranged on the periphery of the cold plates through the sliding rail assembly to move, the sliding rail assembly is connected with the supporting frame, and the fire-jet head is arranged towards the position between the two cold plates; the connecting air pipe is vertically connected with the supporting frame, one end of the connecting air pipe is connected with the first vacuumizing assembly, the gas washing and filling assembly and the protective gas filling assembly, the edges of the two glass sheets are sealed in a firing mode, gas washing and vacuumizing are carried out, and it is guaranteed that a gap between the two glass sheets is in a water-free and oxygen-free environment; therefore, the service life of the perovskite sheet can be prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of perovskite cell packaging, and in particular to a packaging device and process for a perovskite cell. Background Art

[0002] Perovskite cells are usually made of two glass sheets sandwiching a perovskite sheet, and the two glass sheets need to be sealed around them. The conventional method is to use glue to seal the two glass sheets around them.

[0003] However, the above method also has the following disadvantages: the glue contains moisture. During the solidification process of the glue, part of the moisture in the glue will dissipate into the gap between the two glass sheets after the packaging is completed. Generally, the perovskite sheet is very sensitive to moisture and oxygen. The presence of moisture will reduce the service life of the perovskite sheet. Summary of the invention

[0004] In order to solve the above-mentioned deficiencies in the prior art, the present invention proposes a packaging device and process for perovskite solar cells.

[0005] In order to achieve the above technical effects, the present invention adopts the following scheme:

[0006] A packaging device for a perovskite cell, comprising:

[0007] Support frame;

[0008] A clamping device, the clamping device comprising two cold plates spaced apart in the vertical direction and a first driving assembly for driving the two cold plates to move relative to each other, the first driving assembly being connected to the support frame, and the cold plates being connected to a cooling assembly;

[0009] A flame spray head, which is arranged around the cold plate and moves through a slide rail assembly, the slide rail assembly is connected to the support frame, and the flame spray head is arranged between the two cold plates;

[0010] A connecting air pipe is vertically connected to the support frame, and one end of the connecting air pipe is respectively connected to the first vacuum pumping component, the washing gas charging component and the protective gas charging component.

[0011] The preferred technical solution also includes a sealed glove box, wherein the support frame, the cold plate and the flame head are all located in the glove box, and the glove box is connected to a second vacuum pumping component and an inert gas charging component.

[0012] According to a preferred technical solution, the flame spray head is a plasma flame spray head.

[0013] According to a preferred technical solution, the slide rail assembly includes at least one slide rail, at least one slide rail is connected at the end and is arranged around the cold plate, each slide rail is matched with at least one sliding slide frame, the nozzle is installed on the slide frame, and the slide frame is driven to move by a second driving assembly.

[0014] According to a preferred technical solution, the cooling component includes a cooling pipe arranged inside the cold plate, and two ends of the cooling pipe are respectively connected to a water inlet and a water outlet located at the outer end of the cold plate.

[0015] A preferred technical solution, the connecting air pipe is respectively connected to the first vacuum pumping component, the gas washing and charging component and the protective gas charging component through a four-way valve assembly, the four-way valve assembly includes a connecting head, the connecting head is provided with air ports on four sides, the four air ports all extend inward and intersect at one place, one air port is connected to the connecting air pipe, and the remaining three air ports are connected to a switch assembly, the switch assembly includes a protruding block protruding from the surface of the connecting head, the protruding block is provided with an inner hole connected to the air port, a piston is slidably provided in the inner hole, the piston is driven to slide by a second cylinder provided on the protruding block, the piston can block the air port, a connecting port is provided on the surface of the protruding block, the connecting port is communicated with the inner hole, the position where the connecting port is connected to the inner hole is arranged close to the air port, the connecting ports on the three protruding blocks are respectively connected to the first vacuum pumping component, the gas washing and charging component and the protective gas charging component.

[0016] A packaging process for a perovskite cell comprises the following steps:

[0017] S1, a preparation sheet, comprising two glass sheets and a perovskite sheet, wherein a glass air tube is protruding from one side of one of the glass sheets, and the air tube is connected to the other side of the glass sheet;

[0018] S2, pre-clamping, clamping the perovskite sheet between two glass sheets, with the trachea on the outside;

[0019] S3, fix, send the pre-clamp horizontally between the two cold plates, and insert the glass air pipe into the connecting air pipe, the two cold plates are driven by the first driving assembly to move synchronously to clamp the pre-clamp;

[0020] S4, fire sealing, the flame head moves along the slide rail assembly, and sprays fire on the four edges of the pre-clamp to fuse the edges of the two glass sheets together for sealing;

[0021] S5, vacuuming the gap between the two glass sheets by using a first vacuuming component;

[0022] S6, filling with wash gas, filling the gap between the two glass sheets after vacuuming with wash gas through the wash gas filling component;

[0023] S7, perform steps S5 and S6 at least once;

[0024] S8, evacuating the air, and again evacuating the air through the first evacuating assembly to remove the wash gas in the gap between the two glass sheets;

[0025] S9, filling protective gas, filling the gap between the two glass sheets with protective gas through a protective gas filling component;

[0026] S10, cutting the glass gas tube by burning it from the middle;

[0027] S11, taking out the cell, the two cold plates are synchronously moved and opened under the drive of the first driving component, and the packaged perovskite cell is taken out.

[0028] According to a preferred technical solution, in step S1, an electrode is pre-sealed on one of the glass sheets.

[0029] Compared with the prior art, the beneficial effects are:

[0030] The invention has a simple structure and is easy to use. It seals the edges of two glass sheets by sintering. Compared with traditional glue, it does not involve moisture, so no moisture will be mixed between the two glass sheets. In addition, the original gas in the gap between the two glass sheets is further removed by multiple times of gas filling and vacuuming, thereby further avoiding moisture from being mixed between the two glass sheets, ensuring that the gap between the two glass sheets is a water-free and oxygen-free environment, thereby increasing the service life of the perovskite sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional schematic diagram of the present invention.

[0032] Figure 2 It is a cross-sectional schematic diagram of the four-way valve assembly in the present invention.

[0033] Figure 3 It is a cross-sectional schematic diagram of another embodiment of the slide rail assembly in the present invention.

[0034] Figure 4 yes Figure 3 Schematic top view of .

[0035] Figure numerals: 1. cold plate; 2. first cylinder; 3. cooling pipe; 4. slide rail; 5. flame head; 6. connecting air pipe; 7. connecting head; 8. bump; 9. second cylinder; 10. first vacuum pumping assembly; 11. glass sheet; 12. perovskite sheet; 13. glass air pipe; 14. air port; 15. inner hole; 16. piston; 17. connecting port; 18. slider; 19. threaded screw; 20. sliding frame; 21. guide rail; 22. first motor; 23. roller; 24. glove box; 25. electrode. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] A packaging device and process for a perovskite cell sheet includes a support frame, a clamping device, a flame head 5 and a connecting air pipe 6.

[0038] The clamping device includes two cold plates 1 spaced apart in the vertical direction and a first driving assembly for driving the two cold plates 1 to move relative to each other. The cold plates 1 are arranged horizontally. The first driving assembly is connected to a support frame. The first driving assembly drives the two cold plates 1 to move relative to or oppositely in synchronization. The first driving assembly includes two first cylinders 2. The two first cylinders 2 are arranged vertically, and the two cold plates 1 are respectively fixed on the telescopic parts of the two first cylinders 2, and both ends of the two cold plates 1 are slidably connected with vertical guide rails 21.

[0039] The cold plate 1 is connected to a cooling component, and the cooling component is used to cool the cold plate 1;

[0040] A flame spray head 5 sprays flames. The flame spray head 5 is arranged around the cold plate 1 and moves through a slide rail 4 assembly. The slide rail 4 assembly is connected to a support frame. The flame spray head 5 is arranged between two cold plates 1.

[0041] The connecting air pipe 6 is vertically connected to the support frame, and one end of the connecting air pipe 6 is respectively connected to the first vacuum pumping assembly 10, the washing gas charging assembly and the protective gas charging assembly. The first vacuum pumping assembly 10 includes a vacuum tube connected to the connecting air pipe 6, and the vacuum tube is connected to a vacuum pump; the washing gas charging assembly includes a washing gas pipe connected to the connecting air pipe 6, and the other end of the washing gas pipe is connected to a washing gas bottle, the washing gas bottle is filled with washing gas, and the washing gas pipe is connected to a first air pump; the protective gas charging assembly includes a protective gas pipe connected to the connecting air pipe 6, and the other end of the protective gas pipe is connected to a protective gas bottle, the protective gas bottle is filled with protective gas, and the protective gas pipe is connected to a second air pump.

[0042] Two glass sheets 11 and a perovskite sheet 12 are prepared, wherein a glass air tube 13 is protruded from one side of one of the glass sheets 11, and the glass air tube 13 is connected to the other side of the glass sheet 11; the two glass sheets 11 clamp the perovskite sheet 12 to form a pre-clamp, and the glass air tube 13 is located on the outside; the pre-clamp is horizontally sent between the two cold plates 1, and the glass air tube 13 is inserted into the connecting air tube 6 and sealed with the connecting air tube 6, and the two cold plates 1 are driven by the first driving component to move synchronously from the upper and lower directions to clamp the pre-clamp; the flame head 5 moves along the slide rail 4 assembly, and flames the edges of the pre-clamp so that the edges of the two glass sheets 11 are melted and combined for sealing and packaging, mainly by sintering the joint of the two glass sheets 11 through the tip of the flame ; The gap between the two glass sheets 11 is evacuated by the first vacuum pumping component 10; the gap between the two glass sheets 11 after evacuation is filled with wash gas by the wash gas filling component; the steps of evacuating and filling with wash gas are repeated for many times, and the wash gas is usually nitrogen, ammonia, argon and other inert gases; the first vacuum pumping component 10 is used to evacuate the gap between the two glass sheets 11 again to remove the wash gas in the gap between the two glass sheets 11; the protective gas is filled into the gap between the two glass sheets 11 by the protective gas filling component, and the protective gas is usually ammonia, argon, xenon and other inert gases; the glass gas tube 13 is cut from the middle of the glass gas tube 13 by burning; the two cold plates 1 are synchronously moved and opened under the drive of the first driving component, and the packaged perovskite battery sheet is taken out.

[0043] Through the above scheme, the edges of the two glass sheets 11 are sealed by fire sintering. Compared with traditional glue, there is no water involved, and no water will be mixed between the two glass sheets. In addition, through multiple times of filling and washing and vacuuming, the original gas in the gap between the two glass sheets 11 is further removed, and the water is further prevented from being mixed between the two glass sheets 11, ensuring that the gap between the two glass sheets 11 is a water-free and oxygen-free environment, thereby improving the service life of the perovskite sheet 12. In addition, the glass gas tube 13 is cut by fire, and during the burning process, the glass gas tube 13 will automatically fuse and seal after melting, thereby preventing gas from entering between the two glass sheets 11.

[0044] The cold plate 1 is cooled by the cooling device, and after the two cold plates 1 clamp the pre-clamping sheet, the low temperature is transferred to the pre-clamping sheet to offset the high temperature of the flame, thereby preventing the high temperature of the flame from being transferred inward.

[0045] The preferred technical solution also includes a sealed glove box 24, wherein the support frame, the cold plate 1 and the flame head 5 are all located in the glove box 24, and the glove box 24 is connected to a second vacuuming component and an inert gas charging component. The packaging operation is performed in the sealed glove box 24, and the glove box 24 is filled with inert gas and vacuumed to ensure that the glove box 24 is an environment without water and oxygen, and further ensure that the gap between the two glass sheets 11 after the packaging is completed is an environment without water and oxygen.

[0046] In a preferred technical solution, the flame spray head 5 is a plasma flame spray head 5 .

[0047] In a preferred technical solution, the slide rail 4 assembly includes at least one slide rail 4, at least one slide rail 4 is connected at the end and arranged around the cold plate 1, each slide rail 4 is matched with at least one sliding frame 20, the nozzle is mounted on the sliding frame 20, and the sliding frame 20 is driven to move by the second driving assembly. The slide rail 4 can be set as one, and one slide rail 4 is arranged around the cold plate 1; the slide rail 4 can also be set as four and arranged in a straight line, and the four slide rails 4 are respectively arranged on the outside of the four sides of the cold plate 1, so as to surround the cold plate 1.

[0048] When a surrounding slide rail 4 is set, four rollers 23 distributed in a rectangular array are installed on the sliding frame 20, two of the four rollers 23 are rollingly installed at the upper end of the slide rail 4, and the remaining two are rollingly installed at the lower end of the slide rail 4, so that the slide rail 4 is clamped from the upper and lower directions, so that the sliding frame 20 is installed on the slide rail 4 and slides. A first motor 22 connected to one of the upper rollers 23 is also installed on the sliding frame 20, and a roller 23 is driven to rotate by the first motor 22 to move the sliding frame 20 on the slide rail 4.

[0049] When four linear slide rails 4 are provided, at least one slide frame 20 is provided on each slide rail 4, a flame head 5 is installed on each slide frame 20, a slider 18 is provided on the slide frame 20, a slide groove matching the slider 18 is provided along the length of the slide rail 4, the slider 18 is embedded in the slide groove and slides, and a threaded screw 19 is also rotatably installed on the slide rail 4, one end of the threaded screw 19 is connected to the second motor and driven to rotate by the second motor, the threaded screw 19 is threadedly connected and passes through the slider 18, and the rotation of the threaded screw 19 drives the slide frame 20 to move along the slide rail 4. In addition, when a linear slide rail 4 is provided, the slide frame 20 can also be slidably arranged on the slide rail 4 according to the installation method when a surrounding slide rail 4 is provided.

[0050] A preferred technical solution, the cooling component includes a cooling pipe 3 arranged inside the cold plate 1, and the two ends of the cooling pipe 3 are respectively connected to a water inlet and a water outlet located at the outer end of the cold plate 1, and the water inlet is connected to an external cold water supply pipe, and cold water is sent into the cold plate 1 to take away the heat of the cold plate 1, and then discharged from the water outlet.

[0051] The preferred technical solution is that the connecting air pipe 6 is connected to the first vacuum assembly 10, the washing gas filling assembly and the protective gas filling assembly respectively through the four-way valve assembly, and the four-way valve assembly includes a connecting head 7, and the four sides of the connecting head 7 are provided with air ports 14, and the four air ports 14 extend inward and meet at one point, one of the air ports 14 is connected to the connecting air pipe 6, and the other three air ports 14 are connected to the switch assembly, and the switch assembly includes a convex block 8 protruding from the surface of the connecting head 7, and the convex block 8 is provided with a There is an inner hole 15 connected to the air port 14, a piston 16 is slidably arranged in the inner hole 15, the piston 16 is driven to slide by the second cylinder 9 arranged on the protrusion 8, the piston 16 can block the air port 14, a connection port 17 is arranged on the surface of the protrusion 8, the connection port 17 is connected to the inner hole 15, the position where the connection port 17 is connected to the inner hole 15 is arranged close to the air port 14, and the connection ports 17 on the three protrusions 8 are respectively connected to the first vacuum pumping component 10, the washing gas filling component and the protective gas filling component. That is, one air port 14 on the connector 7 is connected to the connecting air pipe 6, and the connection ports 17 on the protrusion 8 to which the other three air ports 14 are connected are respectively connected to the vacuum pipe, the washing gas pipe and the protective gas pipe.

[0052] The four air ports 14 are connected in the connector 7, and the second air cylinder 9 drives the piston 16 to slide in the inner hole 15. In a natural state, the piston 16 blocks the air port 14 to close it. When communication is required, the second air cylinder 9 drives the piston 16 backward to open the air port 14 and connect the air port 14 with the connector 17 to perform vacuuming, washing and inflation operations.

[0053] A preferred technical solution is that an electrode 25 is pre-sealed on a glass sheet 11, and the electrode 25 is sealed perpendicular to the glass sheet 11 and passes through the glass sheet 11 instead of being led out from the edge of the glass sheet 11, so as to prevent the flame from burning the electrode 25. The sealing technology adopts conventional technical means.

[0054] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0056] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A packaging device for a perovskite cell, characterized in that: include: Support frame; A clamping device, the clamping device comprising two cold plates (1) spaced apart in the vertical direction and a first driving component for driving the two cold plates (1) to move relative to each other, the first driving component being connected to a support frame, and the cold plates (1) being connected to a cooling component; A flame spray head (5), the flame spray head (5) is arranged around the cold plate (1) for movement via a slide rail (4) assembly, the slide rail (4) assembly is connected to a support frame, and the flame spray head (5) is arranged between the two cold plates (1); A connecting air pipe (6) is vertically connected to the support frame, and one end of the connecting air pipe (6) is respectively connected to the first vacuum pumping component (10), the washing gas charging component and the protective gas charging component.

2. The packaging device for perovskite cells according to claim 1, characterized in that: It also includes a sealed glove box (24), wherein the support frame, the cold plate (1) and the flame head (5) are all located in the glove box (24), and the glove box (24) is connected to a second vacuum pumping component and an inert gas charging component.

3. The packaging device for perovskite cells according to claim 2, characterized in that: The flame spray head (5) is a plasma flame spray head (5).

4. The packaging device for perovskite cells according to claim 1, characterized in that: The slide rail (4) assembly comprises at least one slide rail (4), the end of at least one slide rail (4) being connected and arranged around the cold plate (1), each slide rail (4) being matched with at least one sliding slide frame (20), the nozzle being mounted on the slide frame (20), and the slide frame (20) being driven to move by a second driving assembly.

5. The packaging device for perovskite solar cells according to claim 1, characterized in that: The cooling component comprises a cooling pipe (3) arranged inside the cold plate (1), and two ends of the cooling pipe (3) are respectively connected to a water inlet and a water outlet located at the outer end of the cold plate (1).

6. The packaging device for perovskite solar cells according to claim 1, characterized in that: The connecting air pipe (6) is respectively connected to the first vacuum pumping assembly (10), the washing gas charging assembly and the protective gas charging assembly through a four-way valve assembly. The four-way valve assembly comprises a connecting head (7). The connecting head (7) is provided with air ports (14) on four sides. The four air ports (14) extend inward and meet at one point. One of the air ports (14) is connected to the connecting air pipe (6). The other three air ports (14) are connected to a switch assembly. The switch assembly comprises a convex block (8) protruding from the surface of the connecting head (7). A switch assembly is provided in the convex block (8) and connected to the air port (14). An inner hole (15) is provided with a piston (16) which is slidably arranged in the inner hole (15). The piston (16) is driven to slide by a second cylinder (9) arranged on the protrusion (8). The piston (16) can block the air port (14). A connecting port (17) is provided on the surface of the protrusion (8). The connecting port (17) is communicated with the inner hole (15). The position where the connecting port (17) is connected to the inner hole (15) is arranged close to the air port (14). The connecting ports (17) on the three protrusions (8) are respectively connected to a first vacuum pumping component (10), a washing gas charging component and a protective gas charging component.

7. A packaging process for a packaging device for a perovskite cell as claimed in claim 1, characterized in that: The following steps are involved: S1, a preparation sheet, comprising two glass sheets (11) and a perovskite sheet (12), wherein a glass air tube (13) is protruding from one side of one of the glass sheets (11), and the air tube is connected to the other side of the glass sheet (11); S2, pre-clamping the perovskite sheet (12) by clamping two glass sheets (11) with the air tube located on the outside; S3, fix, send the pre-clamped sheet horizontally between the two cold plates (1), and insert the glass air tube (13) into the connecting air tube (6), and the two cold plates (1) are driven by the first driving component to move synchronously to clamp the pre-clamped sheet; S4, fire sealing, the flame head (5) moves along the slide rail (4) assembly, and sprays fire on the four edges of the pre-clamp to fuse the edges of the two glass sheets (11) together for sealing; S5, evacuating the gap between the two glass sheets (11) by means of a first evacuating assembly (10); S6, filling with washing gas, and filling the gap between the two glass sheets (11) after evacuation with washing gas through the washing gas filling component; S7, perform steps S5 and S6 at least once; S8, evacuating the air, and again evacuating the air through the first evacuating assembly (10) to remove the wash gas in the gap between the two glass sheets (11); S9, filling protective gas, filling the gap between the two glass sheets (11) with protective gas through a protective gas filling assembly; S10, cutting the glass gas tube (13) from the middle of the glass gas tube (13) by burning; S11, taking out the cell, the two cold plates (1) are driven by the first driving component to move and open synchronously, and the packaged perovskite cell is taken out.

8. The packaging process of the perovskite cell according to claim 1, characterized in that: In step S1, an electrode (25) is pre-pressed and sealed on one of the glass sheets (11).

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