Perovskite cell space environment multifunctional protection composite packaging structure

Abstract

The utility model relates to a perovskite cell space environment multifunctional protection composite packaging structure comprising a bottom frame, the upper end face of the bottom frame is provided with a containing groove, and a perovskite cell is placed in the containing groove; the composite packaging film comprises an anti-reflection layer, a first packaging film and a second packaging film which are stacked, and the anti-reflection layer is arranged on the upper end face of the perovskite cell; the first packaging assembly is arranged on the upper end face of one side of the bottom frame so as to clamp one side of the composite packaging film; the second packaging assembly is arranged on the upper end face of the other side of the bottom frame so as to clamp the other side of the composite packaging film; and the protective layer comprises an anti-radiation coating and an atomic oxygen protective layer which are sequentially evaporated on the second packaging film, and the anti-radiation coating is coated with the atomic oxygen protective layer. The packaging film provided by the utility model has the advantages of anti-reflection, high and low temperature resistance, electron radiation resistance and atomic oxygen corrosion resistance, and can meet the low-orbit space application of the perovskite laminated cell; and the cost is lower than that of a glass cover plate applied to an existing gallium arsenide solar cell.

Description

Technical Field

[0001] This utility model relates to the field of perovskite battery technology, specifically to a multifunctional protective composite packaging structure for perovskite batteries in space environments. Background Technology

[0002] The most effective way to reduce the cost of solar cells in commercial space satellite manufacturing is to replace traditional gallium arsenide solar cells with perovskite tandem solar cells. However, the surface of perovskite solar cells has weak tolerance to the space environment, so protection is required for their surface during space applications. The protective materials must withstand high and low temperatures, electron radiation, and atomic oxygen corrosion without affecting their optical and physical properties. Therefore, considering the characteristics of perovskite solar cells, a multifunctional protective composite encapsulation structure with targeted space protection needs to be developed. Utility Model Content

[0003] The purpose of this invention is to overcome at least one of the defects of the prior art and provide a multifunctional protective composite packaging structure for perovskite solar cells in a space environment.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A multifunctional protective composite encapsulation structure for perovskite solar cells in space environments, used for encapsulating perovskite solar cells, includes...

[0006] A base frame, the upper end of which has a receiving groove, and the perovskite solar cell is placed in the receiving groove;

[0007] A composite encapsulation film, comprising an antireflection layer, a first encapsulation film, and a second encapsulation film stacked on top of each other, wherein the antireflection layer is disposed on the upper surface of the perovskite solar cell;

[0008] A first encapsulation component is disposed on the upper end face of one side of the base frame to clamp one side of the composite encapsulation film;

[0009] The second encapsulation component is disposed on the upper surface of the other side of the base frame to clamp the other side of the composite encapsulation film;

[0010] The composite encapsulation film further includes a protective layer, which comprises an anti-radiation coating sequentially deposited on the second encapsulation film and an atomic oxygen protective layer coated on the anti-radiation coating.

[0011] Furthermore, the first encapsulation film is an ethylene-tetrafluoroethylene copolymer (ETFE) film.

[0012] Furthermore, the second encapsulation film is a polyimide (PI) film.

[0013] Furthermore, the antireflective layer is a magnesium fluoride layer.

[0014] Furthermore, the radiation-resistant coating is a transparent zinc oxide / organosilicon nanocomposite coating. The transparent zinc oxide / organosilicon nanocomposite coating is a prior art technique, prepared by grafting nano-zinc oxide particles onto hydrogen-containing polysiloxane and then reacting them with end-vinyl polysiloxane, exhibiting good heat resistance and radiation resistance.

[0015] Furthermore, the atomic oxygen protective layer is a silicon dioxide layer.

[0016] Furthermore, the first encapsulation film and the second encapsulation film are joined together by vacuum hot pressing.

[0017] Further, the first encapsulation component includes:

[0018] A first fixing frame, wherein the first fixing frame has a first encapsulation space;

[0019] A first pressure plate disposed within the first encapsulation space;

[0020] A first slide rod is provided on the upper surface of the first pressure plate, and the first slide rod passes through the upper surface of the first fixing frame;

[0021] A first threaded plate connected to the end of the first slide bar located outside the first encapsulation space;

[0022] One side of the composite encapsulation film extends into the first encapsulation space and is placed between the inner surfaces of the first pressure plate and the first fixing frame. The composite encapsulation film is fixed by screwing a screw into the first threaded plate.

[0023] Further, the second packaging component includes:

[0024] A second mounting bracket, wherein the second mounting bracket has a second encapsulation space;

[0025] A second slide bar disposed within the second encapsulation space;

[0026] A pair of second pressure plates are respectively installed on both sides of the second slide bar;

[0027] A second screw is provided on the upper surface of the second pressure plate. One end of the second screw passes through the upper surface of the second pressure plate and is rotatably connected to the upper surface of the second pressure plate. The other end passes through the second slide rod and is threadedly connected to the second slide rod.

[0028] A pair of driven rods are disposed on the upper surface of the second pressure plate and symmetrically distributed on both sides of the second screw. A pair of second threaded plates are provided at one end of the pair of driven rods that penetrate the upper surface of the second pressure plate.

[0029] The other side of the composite encapsulation film extends into the first encapsulation space and is placed between the inner surfaces of the pair of second pressure plates and the second fixing frame. By rotating the second screw, the second slide bar is slid down, thereby causing the pair of second pressure plates to press the other side of the composite encapsulation film. Then, screws are screwed into the pair of second threaded plates to fix the other side of the composite encapsulation film.

[0030] Furthermore, a bearing assembly is provided between the second screw and the upper end face of the second pressure plate. The bearing assembly includes a bearing housing, a shaft retaining ring, and a bearing. The bearing housing is fixed to the second pressure plate by welding, bolting, or other methods. The shaft retaining ring is installed on the second screw to determine the axial position of the bearing. The bearing is then installed on the second screw, making it contact the shaft retaining ring. The second screw with the bearing is then inserted entirely into the bearing housing. In this way, the bolt can rotate freely in place on the mounting bracket with the aid of the bearing.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) The encapsulation film in this utility model adopts a multifunctional protective composite encapsulation film with multiple functions such as anti-reflection, high and low temperature resistance, anti-electron radiation, and anti-ionic oxygen corrosion, which can meet the low-orbit space application of perovskite tandem solar cells; and the cost is lower than the cost of glass cover sheets used in existing gallium arsenide solar cell applications.

[0033] (2) The encapsulation structure in this utility model can avoid the problem of wrinkles during the encapsulation of the encapsulation film and improve the encapsulation efficiency of the encapsulation film. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the packaging structure in the embodiment;

[0035] Figure 2 This is a cross-sectional view of the packaging structure in the embodiment;

[0036] Figure 3 This is a schematic diagram of the first encapsulation component in the embodiment;

[0037] Figure 4 This is a schematic diagram of the second encapsulation component in the embodiment;

[0038] The numbers in the diagram indicate: 1-Base frame; 2-First fixing frame; 201-First sliding rod; 202-First threaded plate; 203-First pressure plate; 3-Second fixing frame; 301-Second sliding rod; 302-Second screw; 303-Second pressure plate; 304-Driven rod; 305-Second threaded plate; 4-Perovskite cell; 501-First encapsulation film; 502-Second encapsulation film; 503-Antireflective layer; 504-Anti-radiation coating; 505-Atomic oxygen protection layer. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0040] Example

[0041] A multifunctional protective composite packaging structure for perovskite solar cells in space environments, the specific structure of which is described in [reference needed]. Figure 1-4 For packaging of perovskite solar cells 4, including

[0042] The base frame 1 has a receiving groove on its upper surface, and the perovskite battery 4 is placed in the receiving groove.

[0043] A composite encapsulation film, comprising an antireflection layer 503, a first encapsulation film 501, and a second encapsulation film 502 stacked on top of each other, wherein the antireflection layer 503 is disposed on the upper surface of the perovskite solar cell 4.

[0044] A first encapsulation component is disposed on the upper end face of one side of the base frame 1 to clamp one side of the composite encapsulation film.

[0045] The second encapsulation component is disposed on the upper surface of the other side of the base frame 1 to clamp the other side of the composite encapsulation film;

[0046] The composite encapsulation film further includes a protective layer, which includes an anti-radiation coating 504 sequentially deposited on the second encapsulation film 502 and an atomic oxygen protective layer 505 coated on the anti-radiation coating 504.

[0047] In this embodiment, the first encapsulation film 501 is an ethylene-tetrafluoroethylene copolymer (ETFE) film.

[0048] In this embodiment, the second encapsulation film 502 is a polyimide (PI) film.

[0049] In this embodiment, the antireflective layer 503 is a magnesium fluoride layer.

[0050] In this embodiment, the radiation-resistant coating 504 is a transparent zinc oxide / organosilicon nanocomposite coating. The transparent zinc oxide / organosilicon nanocomposite coating is a prior art technique, prepared by grafting nano-zinc oxide particles onto hydrogen-containing polysiloxane and then reacting them with end-vinyl polysiloxane, exhibiting good heat resistance and radiation resistance.

[0051] In this embodiment, the atomic oxygen protective layer 505 is a silicon dioxide layer.

[0052] In this embodiment, the first encapsulation film 501 and the second encapsulation film 502 are joined by vacuum hot pressing. Vacuum hot pressing is a composite process that uses high temperature and pressure to cause the surface molecules of the first encapsulation film 501 and the second encapsulation film 502 to diffuse into each other.

[0053] In this embodiment, the first packaging component includes:

[0054] A first fixing frame 2, the first fixing frame 2 having a first encapsulation space;

[0055] A first pressure plate 203 is disposed within the first encapsulation space;

[0056] A first slide rod 201 is provided on the upper end face of the first pressure plate 203, and the first slide rod 201 passes through the upper end face of the first fixing frame 2;

[0057] A first threaded plate 202 is connected to the end of the first slide bar 201 located outside the first encapsulation space;

[0058] One side of the composite encapsulation film extends into the first encapsulation space and is placed between the inner surfaces of the first pressure plate 203 and the first fixing frame 2. The composite encapsulation film is fixed by screwing a screw into the first threaded plate 202.

[0059] In this embodiment, the second packaging component includes:

[0060] The second fixing frame 3 has a second encapsulation space inside the second fixing frame 3;

[0061] A second slide bar 301 is disposed within the second encapsulation space;

[0062] A pair of second pressure plates 303 are respectively installed on both sides of the second slide bar;

[0063] A second screw 302 is provided on the upper end face of the second pressure plate 303. One end of the second screw 302 passes through the upper end face of the second pressure plate 303 and is rotatably connected to the upper end face of the second pressure plate 303. The other end passes through the second slide rod 301 and is threadedly connected to the second slide rod 301.

[0064] A pair of driven rods 304 are disposed on the upper end face of the second pressure plate 303 and symmetrically distributed on both sides of the second screw 302. A pair of second threaded plates 305 are provided at one end of the pair of driven rods 304 that penetrate the upper end face of the second pressure plate 303.

[0065] The other side of the composite encapsulation film extends into the first encapsulation space and is placed between the inner surfaces of the pair of second pressure plates 303 and the second fixing frame 3. By rotating the second screw 302, the second slide bar 301 is slid down, thereby causing the pair of second pressure plates 303 to press the other side of the composite encapsulation film. Then, screws are screwed into the pair of second threaded plates 305 to fix the other side of the composite encapsulation film.

[0066] In this embodiment, a bearing assembly is provided between the second screw 302 and the upper end face of the second pressure plate 303. The bearing assembly includes a bearing housing, a shaft elastic retaining ring, and a bearing. The bearing housing is fixed to the second pressure plate 303 by welding, bolting, or other methods. The shaft elastic retaining ring is installed on the second screw 302 to determine the axial position of the bearing. The bearing is then installed on the second screw 302, making it contact the shaft elastic retaining ring. The second screw 302 with the bearing is then fully inserted into the bearing housing. In this way, the bolt can rotate flexibly in place on the fixed frame with the aid of the bearing.

[0067] Working principle:

[0068] After the first encapsulation film 501 and the second encapsulation film 502 are laminated, an anti-reflection layer 503 is deposited on one side of the first encapsulation film 501, and the first encapsulation film 501, the second encapsulation film 502 and the anti-reflection layer 503 form a preliminary encapsulation film.

[0069] After the vapor deposition is completed, one end of the preliminary encapsulation film is inserted into the first fixing frame 2. The first encapsulation film 501 is located on the lower side and the second encapsulation film 502 is located on the upper side. The preliminary encapsulation film is placed between the lower surface of the first pressure plate 203 and the inner surface of the first fixing frame 2. Then, the preliminary encapsulation film is moved to the inner surface between the lower surface of the second pressure plate 303 and the second fixing frame 3 in the second fixing frame 3.

[0070] When one end of the initial sealing film moves between the lower surface of the second pressure plate 303 and the inner surface of the second fixing frame 3, the first screw 302 is turned, the first screw 302 rotates in place, the second slide bar 301 moves downward, and the second pressure plate 303 gradually contacts the upper surface of the initial sealing film. The initial sealing film is squeezed from the lower surface of the second pressure plate 303 and the inner surface of the second fixing frame 3, thereby fixing one end of the initial sealing film. Then, screws are screwed into the screw holes on the second threaded plate 305 to connect it to the second fixing frame 3, thereby locking the position of the second slide bar 301.

[0071] After the second fixing frame 3 is fixed, the first slide bar 201 inside the first fixing frame 2 is moved downward. The first slide bar 201 drives the first pressure plate 203 to move in the same direction. The first pressure plate 203 contacts and connects with the other end of the preliminary sealing film. The other end of the preliminary sealing film is fixed by the compression between the first pressure plate 203 and the first fixing frame 2. Then, screws are screwed into the first threaded plate 202 to fix the first threaded plate 202 to the first fixing frame 2, thereby locking the first slide bar 201.

[0072] The above mechanisms can improve the flatness of the initial encapsulation film on the surface of the perovskite solar cell 4, and prevent wrinkles in the initial encapsulation film, which would affect the coating of subsequent materials.

[0073] After the initial encapsulation film is laid on the surface of the perovskite solar cell 4, an anti-radiation coating 504 is coated on the side of the second encapsulation film 502 inside the initial encapsulation film. Subsequently, an atomic oxygen protection layer 505 is vapor-deposited on the surface of the anti-radiation coating 504 to form a composite encapsulation film 5.

[0074] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A perovskite cell space environment multifunctional protection composite packaging structure for packaging of a perovskite cell (4), characterized in that, The application relates to a perovskite battery packaging structure. A chassis (1) has a containing groove in the upper end face, and the perovskite battery (4) is arranged in the containing groove; A composite packaging film comprises a first packaging film (501), a second packaging film (502) and a first anti-reflection layer (503) arranged in sequence, and the first anti-reflection layer (503) is arranged on the upper end face of the perovskite battery (4); A first packaging assembly is arranged on the upper end face of one side of the chassis (1) to clamp one side of the composite packaging film; A second packaging assembly is arranged on the upper end face of the other side of the chassis (1) to clamp the other side of the composite packaging film; The composite packaging film further comprises a protective layer, and the protective layer comprises an anti-radiation coating (504) and an atomic oxygen protective layer (505) arranged in sequence on the second packaging film (502).

2. The multifunctional space environmental protection composite packaging structure for perovskite battery according to claim 1, characterized in that, The first packaging film (501) is an ethylene-tetrafluoroethylene copolymer adhesive film.

3. The multifunctional space environmental protection composite packaging structure for perovskite battery according to claim 1, characterized in that, The second packaging film (502) is a polyimide film.

4. The multifunctional space environmental protection composite encapsulation structure for perovskite solar cells according to claim 1, characterized in that, The first anti-reflection layer (503) is a magnesium fluoride layer.

5. The multifunctional space environmental protection composite encapsulation structure for perovskite solar cells according to claim 1, characterized in that, The anti-radiation coating (504) is a transparent zinc oxide / silicone nanocomposite coating.

6. The multifunctional space environmental protection composite encapsulation structure for perovskite solar cells according to claim 1, wherein, The atomic oxygen protective layer (505) is a silicon dioxide layer.

7. The multifunctional space environmental protection composite encapsulation structure for perovskite solar cells according to claim 1, wherein, The first packaging film (501) and the second packaging film (502) are connected by vacuum hot pressing.

8. The multifunctional space environmental protection composite encapsulation structure for perovskite solar cells according to claim 1, characterized in that, The first packaging assembly comprises: A first fixing frame (2) has a first packaging space in the first fixing frame (2); A first pressing plate (203) is arranged in the first packaging space; A first sliding rod (201) is arranged on the upper end face of the first pressing plate (203) and penetrates through the upper end face of the first fixing frame (2); A first threaded plate (202) is connected to the end of the first sliding rod (201) outside the first packaging space.

9. The multifunctional space environmental protection composite encapsulation structure for perovskite solar cells according to claim 1, wherein, The second packaging assembly comprises: A second fixing frame (3) has a second packaging space in the second fixing frame (3); A second sliding rod (301) is arranged in the second packaging space; A pair of second pressing plates (303) are respectively arranged on the two sides of the second sliding rod (301); A second screw rod (302) is arranged on the upper end face of the second pressing plate (303) and is rotatably connected to the upper end face of the second pressing plate (303) at one end and is threadedly connected to the second sliding rod (301) at the other end; A pair of driven rods (304) are arranged on the upper end face of the second pressing plate (303) and are symmetrically distributed on the two sides of the second screw rod (302), and one end of the pair of driven rods (304) penetrating through the upper end face of the second pressing plate (303) is provided with a pair of second threaded plates (305).

10. The multifunctional space environmental protection composite encapsulation structure for perovskite solar cells according to claim 1, characterized in that, A bearing assembly is arranged between the second screw rod (302) and the upper end face of the second pressing plate (303).

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