Perovskite solar cell packaging structure

Abstract

The utility model relates to the technical field of perovskite solar cell packaging, in particular to a perovskite solar cell packaging structure, which comprises a bottom plate and a sealing frame. The sealing layer comprises a sealing partition plate attached to the packaging adhesive layer, a sealing adhesive layer wrapping the sealing partition plate, a sealing rubber sheet surrounding the sealing adhesive layer and a sealing adhesive tape layer wound on the sealing rubber sheet. According to the perovskite solar cell, water vapor is prevented from contacting the perovskite solar cell, the sealing rubber sheet and the sealing adhesive tape layer are arranged to wrap and compact the sealing adhesive tape layer to improve the sealing performance, and the conductive plating layer is arranged to prevent conductive parts such as wires from being inserted on the sealing layer to weaken the sealing performance of the sealing layer.

Description

Technical Field

[0001] The utility model relates to the technical field of perovskite solar cell packaging, in particular to a perovskite solar cell packaging structure. Background Art

[0002] Perovskite solar cells are solar cells that use perovskite-type organic metal halide semiconductors as light-absorbing materials. They belong to the third generation of solar cells, also known as new concept solar cells. Compared with traditional silicon-based solar cells, perovskite solar cells have higher photoelectric conversion efficiency and lower manufacturing costs, which makes perovskite solar cells one of the most popular new energy technologies.

[0003] A thin-film photovoltaic module packaging structure provided by publication number CN207009453U includes a backplane glass, a perovskite solar cell, an upper packaging film, a front glass, and a packaging adhesive, wherein the upper packaging film (EVA, POE, etc.) is arranged below the front glass, the perovskite solar cell is arranged with its front side facing upward below the upper packaging film, and the backplane glass is arranged below the perovskite solar cell. The packaging adhesive is arranged on the side of the upper packaging film and between the back of the perovskite solar cell and the backplane glass.

[0004] However, when the above-mentioned thin-film photovoltaic module packaging structure is used, the sealing of the gap between the front glass and the back glass is weak, which makes it easy for water vapor to penetrate through the gap and contact the perovskite solar cell, causing damage to the cell. Summary of the invention

[0005] The purpose of the utility model is to provide a perovskite solar cell packaging structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A perovskite solar cell packaging structure, comprising:

[0008] A bottom plate, a glass plate is arranged on the top of the bottom plate, a packaging glue layer and a perovskite solar cell are arranged from top to bottom between the glass plate and the bottom plate, and a conductive coating layer is arranged on the bottom plate; and

[0009] A sealing frame, the sealing frame includes a sealing layer arranged between the glass plate and the bottom plate for preventing water from seeping into the perovskite solar cell, a frame inserted between the bottom plate and the glass plate to press the sealing layer and clamp the glass plate and the bottom plate at the same time, and an electrode arranged on the frame, the sealing layer includes a sealing baffle adhered to the encapsulation glue layer, a sealing glue layer wrapped around the sealing baffle, a sealing rubber sheet surrounding the sealing glue layer, and a sealing tape layer wrapped around the sealing rubber sheet, the electrode is placed on the conductive coating so that the electrode and the perovskite solar cell are connected.

[0010] Preferably, the frame includes a lower frame, a rubber plug arranged on the lower frame, an upper frame arranged on the lower frame, through holes opened on the lower frame and the upper frame, and fastening bolts inserted in the through holes, and the electrode passes through the lower frame and extends into the rubber plug.

[0011] Preferably, the rubber stopper is inserted between the bottom plate and the glass plate, the rubber stopper and the lower frame clamp the bottom plate to connect the electrode and the conductive coating, the rubber stopper and the upper frame clamp the glass plate, and the upper frame and the lower frame are clamped and fixed on the bottom plate and the glass plate by tightening the fastening bolts.

[0012] Preferably, rubber gaskets are provided at the contact point between the lower frame and the bottom plate and at the contact point between the upper frame and the glass plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model includes a bottom plate and a sealing frame, wherein a conductive coating is arranged on the bottom plate, and the sealing layer includes a sealing partition plate attached to the packaging adhesive layer, a sealing adhesive layer wrapping the sealing partition plate, a sealing rubber sheet surrounding the sealing adhesive layer, and a sealing tape layer wrapped around the sealing rubber sheet. The utility model blocks the gap between the glass plate and the bottom plate by arranging the sealing partition plate and the sealing adhesive layer to prevent water vapor from contacting the perovskite solar cell, and wraps and compacts the sealing adhesive layer by arranging the sealing rubber sheet and the sealing tape layer to improve the sealing performance, and avoids inserting conductive parts such as wires on the sealing layer by arranging the conductive coating, thereby avoiding weakening the sealing performance of the sealing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the electrode in the lower frame of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the lower frame of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the bottom plate and the sealing frame of the utility model.

[0019] In the figure: 1. bottom plate; 2. glass plate; 3. encapsulation adhesive layer; 4. perovskite solar cell; 5. sealing partition; 6. sealing adhesive layer; 7. sealing rubber sheet; 8. sealing tape layer; 9. lower frame; 10. fastening bolts; 11. upper frame; 12. electrode; 13. through hole; 14. rubber plug; 15. rubber gasket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 , the utility model provides a technical solution:

[0022] A perovskite solar cell packaging structure, comprising:

[0023] A base plate 1, a glass plate 2 is arranged above the base plate 1, and an encapsulation adhesive layer 3 and a perovskite solar cell 4 are arranged between the glass plate 2 and the base plate 1 from top to bottom. The perovskite solar cell 4 is arranged on the base plate 1, and the encapsulation adhesive layer 3 is laid on the base plate 1 and the perovskite solar cell 4, so that the encapsulation adhesive layer 3 completely wraps the perovskite solar cell 4. A conductive coating is coated on the base plate 1 by vacuum coating, and the conductive coating is coated into a wire shape by laser etching or pattern preparation template, so that the conductive coating is electrically connected to the perovskite solar cell 4. In order not to interfere with the normal operation of the conductive coating, the base plate 1 can be selected from insulating glass material.

[0024] The sealing frame includes a sealing layer arranged between the glass plate 2 and the bottom plate 1 to prevent water from seeping into the perovskite solar cell 4 and a frame inserted between the bottom plate 1 and the glass plate 2 to press the sealing layer and clamp the glass plate 2 and the bottom plate 1 at the same time. The sealing layer includes a sealing partition 5, a sealing adhesive layer 6, a sealing rubber sheet 7 and a sealing tape layer 8. The frame includes a rubber plug 14, a lower frame 9, an upper frame 11, a through hole 13, and a fastening bolt 10. Notches are provided at corresponding positions on the bottom plate 1 and the glass plate 2, so that the sealing partition 5 is inserted into the notches of the bottom plate 1 and the glass plate 2, so that the encapsulation adhesive layer 3 is surrounded by the sealing partition 5, and the sealing The adhesive layer 6 wraps the sealing partition 5, and the sealing adhesive layer 6 is bonded to the sealing partition 5, the bottom plate 1 and the glass plate 2 at the same time. The sealing rubber sheet 7 surrounds the sealing adhesive layer 6 so that the sealing rubber sheet 7 is wrapped and bonded to the sealing adhesive layer 6. The width of the sealing rubber sheet 7 is slightly larger than the distance between the bottom plate 1 and the glass plate 2, so that the sealing rubber sheet 7 can be tightly attached to the bottom plate 1 and the glass plate 2. The sealing tape layer 8 is wrapped around the sealing rubber sheet 7. The sealing tape layer 8 plays a role of tightening and winding, so that the sealing tape layer 8 presses the sealing rubber sheet 7 while enhancing the waterproof performance. The sealing partition 5, the sealing adhesive layer 6, the sealing rubber sheet 7, and the sealing tape layer 8 are all used to increase the waterproof performance.

[0025] The rubber plug 14 is arranged on the lower frame 9, and the rubber plug 14 is fixedly connected to the lower frame 9 by means of screws or adhesives, etc. The electrode 12 is inserted into the lower frame 9 and extends into the rubber plug 14. The lower frame 9 and the upper frame 11 are both provided with through holes 13, and the fastening bolts 10 are inserted into the through holes 13. The rubber plug 14 is inserted between the bottom plate 1 and the glass plate 2. The width of the rubber plug 14 is slightly larger than the distance between the bottom plate 1 and the glass plate 2, so that the rubber plug 14 can block the gap between the bottom plate 1 and the glass plate 2, thereby improving the waterproof performance and compacting When the sealing rubber sheet 7 and the sealing tape layer 8, the rubber plug 14 and the lower frame 9 clamp the bottom plate 1, the electrode 12 contacts the conductive coating, the lower frame 9 and the upper frame 11 are made of insulating polypropylene, the rubber plug 14 and the upper frame 11 clamp the glass plate 2, and the upper frame 11 and the lower frame 9 clamp and fix the bottom plate 1 and the glass plate 2 by tightening the fastening bolts 10. Rubber gaskets 15 are provided at the contact points between the upper and lower frames 9 and the bottom plate 1 and at the contact points between the upper frame 11 and the glass plate 2 to prevent the glass plate 2 and the bottom plate 1 from being damaged when the fastening bolts 10 are tightened.

[0026] Working principle: During installation, insert the sealing partition 5 into the notch of the bottom plate 1, set the perovskite solar cell 4 on the bottom plate 1 and connect it to the conductive coating, lay the packaging glue layer 3, completely wrap the perovskite solar cell 4, align the notch on the glass plate 2 with the sealing partition 5, install and adhere the glass plate 2 to the packaging glue layer 3, fill the sealing partition 5 with sealant and insert the sealing rubber sheet 7, so that the sealing rubber sheet 7 presses the sealant into a sealant layer 6, and then wrap the sealing rubber sheet 7 tightly with the sealing tape to form a sealing tape layer 8, insert the rubber plug 14 between the bottom plate 1 and the glass plate 2, and the gap between the rubber plug 14 and the lower frame 9 is stuck on the bottom plate 1, so that the electrode 12 is connected to the conductive coating, and the gap between the rubber plug 14 and the upper frame 11 is stuck on the glass plate 2, and the upper frame 11 and the lower frame 9 are clamped and fixed on the bottom plate 1 and the glass plate 2 by tightening the fastening bolts 10 to complete the installation.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A perovskite solar cell packaging structure, characterized in that: include: A bottom plate, a glass plate is arranged above the bottom plate, a packaging glue layer and a perovskite solar cell are arranged from top to bottom between the glass plate and the bottom plate, and a conductive coating is arranged on the bottom plate; as well as A sealing frame, the sealing frame includes a sealing layer arranged between the glass plate and the bottom plate for preventing water from seeping into the perovskite solar cell, a frame inserted between the bottom plate and the glass plate to press the sealing layer and clamp the glass plate and the bottom plate at the same time, and an electrode arranged on the frame, the sealing layer includes a sealing baffle adhered to the encapsulation glue layer, a sealing glue layer wrapped around the sealing baffle, a sealing rubber sheet surrounding the sealing glue layer, and a sealing tape layer wrapped around the sealing rubber sheet, the electrode is placed on the conductive coating so that the electrode and the perovskite solar cell are connected.

2. A perovskite solar cell packaging structure according to claim 1, characterized in that: The frame includes a lower frame, a rubber plug arranged on the lower frame, an upper frame arranged on the lower frame, through holes opened on the lower frame and the upper frame, and fastening bolts inserted in the through holes. The electrode passes through the lower frame and extends into the rubber plug.

3. A perovskite solar cell packaging structure according to claim 2, characterized in that: The rubber plug is inserted between the bottom plate and the glass plate, the rubber plug and the lower frame clamp the bottom plate to connect the electrode and the conductive coating, the rubber plug and the upper frame clamp the glass plate, and the upper frame and the lower frame are clamped and fixed to the bottom plate and the glass plate by tightening the fastening bolts.

4. A perovskite solar cell packaging structure according to claim 2, characterized in that: The contact position between the lower frame and the bottom plate and the contact position between the upper frame and the glass plate are both provided with rubber gaskets.

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