Patterned perovskite battery assembly and preparation method and device thereof

Abstract

The invention provides a patterned perovskite battery assembly and a preparation method and device thereof. The preparation method at least comprises the following steps: S1, dividing a first coating region and a second coating region on the surface of a substrate layer; s2, the first coating area is coated with nano-particle turbid liquid, and a discontinuous lyophobic part of the island-shaped nano lattice structure is formed after drying; s3, coating the second coating area with a perovskite solution, and drying to form a perovskite film layer, namely a patterned perovskite film layer; wherein the patterned perovskite film layer comprises a pattern area and a perovskite film area, the discontinuous lyophobic part is located in the pattern area, the perovskite film layer is located in the perovskite film area, and the surface of the discontinuous lyophobic part and the surface of the perovskite film layer have adaptability difference. According to the invention, controllable fine patterning of the perovskite film layer is realized, and the coating uniformity of an internal effective area is considered.

Description

Technical Field

[0001] The present invention belongs to the technical field of solar cells and relates to a perovskite cell assembly, and in particular to a patterned perovskite cell assembly and a preparation method and device thereof. Background Art

[0002] Currently, for large-scale perovskite solar cell modules, technicians generally use a slit coating method to apply the perovskite liquid film. Although this method can ensure the uniformity of the ultra-thin liquid film across the entire size, due to the self-leveling properties of the liquid film and the limitations of the coating knife's ability to control the liquid discharge, it is currently unable to achieve fine patterning of the perovskite liquid film.

[0003] The inkjet printing technology used in traditional methods can control the size and spraying position of ink droplets, thus achieving fine patterning to a certain extent. However, when spraying perovskite liquid films, it is impossible to ensure both fine control of the liquid film edge and uniform coating of the internal effective area. This is because perovskite liquid films have special requirements for solution viscosity, solvent selection, additive type, substrate wettability control, liquid film thickness, drying method, etc., which are significantly different from conventional inkjet inks.

[0004] Furthermore, to ensure the crystallization quality of the perovskite film, its good contact with the underlying interface, and its photoelectric conversion efficiency, technicians generally require that the surface energy of the perovskite solution and the substrate be compatible, meaning that the solid-liquid interface contact angle between the two is small and wettable. This inevitably affects the edge position during inkjet pattern formation, as the liquid film is more likely to extend outward, making it difficult to achieve precise control of the inkjet pattern. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a patterned perovskite battery component and a preparation method and device thereof, so as to achieve controllable fine patterning of the perovskite film layer while ensuring the coating uniformity of the internal effective area.

[0006] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a method for preparing a patterned perovskite battery assembly, the method comprising at least the following steps:

[0008] S1, dividing the surface of the base layer into a first coating area and a second coating area;

[0009] S2, coating the first coating area with a nanoparticle suspension to form a discontinuous lyophobic portion having an island-like nano-lattice structure after drying;

[0010] S3. Coating a perovskite solution on the second coating area, and forming a perovskite film layer after drying, thereby obtaining a patterned perovskite film layer.

[0011] The patterned perovskite film layer includes a pattern area and a perovskite film area, the discontinuous liquid-repellent portion is located in the pattern area, the perovskite film layer is located in the perovskite film area, and there is an adaptability difference between the surface energies of the discontinuous liquid-repellent portion and the perovskite film layer.

[0012] In the present invention, the adaptability difference of the surface energy specifically refers to: the contact angles of the perovskite solution in the discontinuous lyophobic portion and the perovskite film layer are different, and the perovskite solution is in a non-wetting state in the area of the discontinuous lyophobic portion and in a wetting state in the area of the perovskite film layer.

[0013] The preparation method provided by the present invention applies a nanoparticle suspension on a specific area of the base layer, artificially creates a local non-wetting area, that is, a discontinuous lyophobic part of an island-like nano-lattice structure, so that there is an adaptability difference between the surface energy of the discontinuous lyophobic part and the perovskite film layer, thereby effectively inhibiting the perovskite solution from extending to the pattern area, and finally forming a patterned perovskite film layer, realizing controllable fine patterning of the perovskite film layer, and at the same time taking into account the coating uniformity of the internal effective area, thereby ensuring the photoelectric conversion efficiency of the perovskite battery and the production yield of large-area batteries.

[0014] As a preferred technical solution of the first aspect of the present invention, the surfaces of the discontinuous lyophobic portion and the perovskite film layer can satisfy the following conditions:

[0015] The discontinuous lyophobic portion and the adjacent region of the perovskite film layer can repel each other to form the distinguished pattern region and the perovskite film region.

[0016] And / or, setting the contact angle of the perovskite solution in the pattern area to θ1, and setting the contact angle of the perovskite solution in the second coating area to θ2, then satisfying: θ1>θ2, that is, the present invention increases the contact angle between the perovskite solution and the discontinuous liquid-repellent portion, thereby worsening its wettability in the pattern area, thereby effectively inhibiting the perovskite solution from extending to the pattern area, and ultimately forming a patterned perovskite film layer.

[0017] Wherein, the contact angle θ1 satisfies: 70°≤θ1≤90°, for example, it can be θ1=70°, 71°, 72°, 73°, 74°, 75°, 76°, 77°, 78°, 79°, 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89° or 90°, but is not limited to the listed values, and other unlisted values within the numerical range are also applicable.

[0018] And / or, the contact angle θ2 satisfies: θ2≤20°, for example, it can be θ2=1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19° or 20°, but is not limited to the listed values, and other unlisted values within the numerical range are also applicable.

[0019] In the present invention, a larger contact angle indicates poorer wettability of the perovskite solution at the corresponding interface. By rationally limiting the contact angle ranges of the perovskite solution in the patterned area and the second coating area, the present invention effectively defines the extended area and dead zone of the perovskite film, further ensuring controllable fine patterning of the perovskite film.

[0020] In addition, the present invention specifically limits the contact angle θ2 of the perovskite solution in the second coating area to ≤10°. Under this standard, the wettability between the perovskite solution and the substrate layer is good, fully ensuring the coverage and thickness uniformity of the perovskite liquid film on the surface of the substrate layer, while effectively improving the carrier transport between the interfaces and significantly reducing defect recombination.

[0021] As a preferred technical solution of the first aspect of the present invention, the material of the nanoparticles in the nanoparticle suspension described in step S2 includes any one or a combination of at least two of metal oxides, small molecule organic matter or high molecular polymers. Typical but non-limiting combinations include a combination of metal oxides and small molecule organic matter, a combination of small molecule organic matter and high molecular polymers, a combination of metal oxides and high molecular polymers, or a combination of metal oxides, small molecule organic matter and high molecular polymers.

[0022] Wherein, the metal oxide includes SnO2 and / or TiO2; the small molecule organic matter includes stearic acid and / or oleic acid; and the high molecular polymer includes polyethyleneimine and / or polyimide.

[0023] And / or, the size of the nanoparticles in the nanoparticle suspension in step S2 is ≤200 nm, for example, it can be 20 nm, 40 nm, 60 nm, 80 nm, 100 nm, 120 nm, 140 nm, 160 nm, 180 nm or 200 nm, but is not limited to the listed values, and other unlisted values within this numerical range are also applicable.

[0024] And / or, the solvent in the nanoparticle suspension in step S2 is a volatile solvent.

[0025] And / or, the solvent in the nanoparticle suspension in step S2 includes ethanol and / or isopropanol.

[0026] In the present invention, the solvent used in the nanoparticle suspension can be a single solvent or multiple solvents. As long as the volatility function can be guaranteed, that is, the rapid formation of the discontinuous lyophobic portion can be achieved, the solvent composition is not particularly limited.

[0027] And / or, the concentration of the nanoparticle suspension in step S2 is ≤5 mg / mL, for example, it can be 0.5 mg / mL, 1 mg / mL, 1.5 mg / mL, 2 mg / mL, 2.5 mg / mL, 3 mg / mL, 3.5 mg / mL, 4 mg / mL, 4.5 mg / mL or 5 mg / mL, but is not limited to the listed values, and other values not listed within this numerical range are also applicable.

[0028] As a preferred technical solution of the first aspect of the present invention, the average thickness of the non-continuous liquid-repellent portion in step S2 is ≤200nm, for example, it can be 20nm, 40nm, 60nm, 80nm, 100nm, 120nm, 140nm, 160nm, 180nm or 200nm, but is not limited to the listed values, and other unlisted values within the numerical range are also applicable.

[0029] As a preferred technical solution of the first aspect of the present invention, the coating method in step S2 includes any one of piezoelectric inkjet coating, slit coating, electrostatic spraying, ultrasonic spraying, electrofluid spraying, screen printing or vapor deposition.

[0030] And / or, the drying method in step S2 includes air knife drying.

[0031] In a second aspect, the present invention provides a patterned perovskite battery assembly, which comprises at least a stacked base layer and a patterned perovskite film layer, wherein the patterned perovskite film layer comprises a pattern area and a perovskite film area, wherein the pattern area is provided with a discontinuous liquid-repellent portion having an island-like nano-lattice structure, and the perovskite film area is provided with a perovskite film layer, and there is an adaptability difference between the surface energies of the discontinuous liquid-repellent portion and the perovskite film layer.

[0032] As a preferred technical solution of the second aspect of the present invention, the surfaces of the discontinuous lyophobic portion and the perovskite film layer can meet the following conditions:

[0033] The discontinuous lyophobic portion and the adjacent region of the perovskite film layer can repel each other to form the distinguished pattern region and the perovskite film region.

[0034] Specifically, the perovskite solution required to form the perovskite film layer meets the following conditions:

[0035] The contact angle of the perovskite solution in the pattern area is set to θ1, and the contact angle of the perovskite solution in the perovskite film area is set to θ2, then: θ1>θ2, that is, the present invention increases the contact angle between the perovskite solution and the discontinuous lyophobic portion to make its wettability in the pattern area worse, thereby effectively inhibiting the perovskite solution from extending to the pattern area, and finally forming a patterned perovskite film layer.

[0036] As a preferred technical solution of the second aspect of the present invention, the material of the nanoparticles in the discontinuous liquid-repellent portion includes any one or a combination of at least two of metal oxides, small molecule organic matter or high molecular polymers. Typical but non-limiting combinations include a combination of metal oxides and small molecule organic matter, a combination of small molecule organic matter and high molecular polymers, a combination of metal oxides and high molecular polymers, or a combination of metal oxides, small molecule organic matter and high molecular polymers.

[0037] Wherein, the metal oxide includes SnO2 and / or TiO2; the small molecule organic matter includes stearic acid and / or oleic acid; and the high molecular polymer includes chitosan and / or polystyrene.

[0038] As a preferred technical solution of the second aspect of the present invention, the size of the nanoparticles in the discontinuous liquid-repellent portion is ≤200 nm, for example, it can be 20 nm, 40 nm, 60 nm, 80 nm, 100 nm, 120 nm, 140 nm, 160 nm, 180 nm or 200 nm, but is not limited to the listed values, and other unlisted values within the numerical range are also applicable.

[0039] And / or, the average thickness of the discontinuous liquid-repellent portion is ≤200 nm, for example, it can be 20 nm, 40 nm, 60 nm, 80 nm, 100 nm, 120 nm, 140 nm, 160 nm, 180 nm or 200 nm, but is not limited to the listed values, and other unlisted values within the numerical range are also applicable.

[0040] In a third aspect, the present invention provides a device for preparing a patterned perovskite battery component, the device comprising at least a carrier, a first coating component and a second coating component; the carrier is used to fix a base layer, and the surface of the base layer is divided into a first coating area and a second coating area; the first coating component is used to coat a nanoparticle suspension in the first coating area to form a discontinuous liquid-repellent portion of an island-like nano-dot array structure; the second coating component is used to coat a perovskite solution in the second coating area to form a perovskite film layer.

[0041] As a preferred technical solution of the third aspect of the present invention, the first coating assembly includes a first liquid storage box and a first nozzle that are interconnected, the first liquid storage box is used to store the nanoparticle suspension, and the first nozzle is used to coat the nanoparticle suspension along a preset trajectory.

[0042] And / or, the second coating assembly includes a second liquid storage box and a second nozzle that are interconnected, the second liquid storage box is used to store the perovskite solution, and the second nozzle is used to coat the perovskite solution along a preset trajectory.

[0043] And / or, an air knife is provided between the first coating assembly and the second coating assembly for drying the nanoparticle suspension.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] The preparation method provided by the present invention applies a nanoparticle suspension on a specific area of the base layer, artificially creates a local non-wetting area, that is, a discontinuous lyophobic part of an island-like nano-lattice structure, so that there is an adaptability difference between the surface energy of the discontinuous lyophobic part and the perovskite film layer, thereby effectively inhibiting the perovskite solution from extending to the pattern area, and finally forming a patterned perovskite film layer, realizing controllable fine patterning of the perovskite film layer, and at the same time taking into account the coating uniformity of the internal effective area, thereby ensuring the photoelectric conversion efficiency of the perovskite battery and the production yield of large-area batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a flow chart of the method for preparing the patterned perovskite battery assembly provided by the present invention;

[0047] Figure 2 This is a patterned perovskite battery component provided by the present invention and a partial enlarged view thereof;

[0048] Figure 3 Schematic diagram of the contact angle of the perovskite solution in the pattern area of the present invention;

[0049] Figure 4 Schematic diagram of the contact angle of the perovskite solution in the second coating area of the present invention;

[0050] Figure 5 It is a partial schematic diagram of the device used for preparing the patterned perovskite battery component provided by the present invention;

[0051] Figure 6 This is a schematic diagram of the patterned perovskite battery component structure provided in Example 1.

[0052] Among them: 10-base layer; 20-patterned perovskite film layer; 30-perovskite solution; 41-first nozzle; 42-second nozzle; 43-air knife; 21-pattern area; 22-perovskite film area; 210-discontinuous liquid-repellent portion; 220-perovskite film layer. DETAILED DESCRIPTION

[0053] The technical solution of the present invention is further described below by way of specific embodiments. It should be understood by those skilled in the art that the embodiments are merely to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0054] Example 1

[0055] This embodiment provides a patterned perovskite battery component and a preparation method thereof, such as Figure 2 As shown, the patterned perovskite battery assembly includes a stacked base layer 10 and a patterned perovskite film layer 20, the patterned perovskite film layer 20 includes a pattern area 21 and a perovskite film area 22, the pattern area 21 is provided with a non-continuous liquid-repellent portion 210 with an island-like nano-dot array structure, the perovskite film area 22 is provided with a perovskite film layer 220, and there is an adaptability difference between the surface energies of the non-continuous liquid-repellent portion 210 and the perovskite film layer 220.

[0056] Specifically, the nanoparticles in the discontinuous lyophobic portion 210 are made of SnO 2 and have an average size of 200 nm; and the average thickness of the discontinuous lyophobic portion 210 is 200 nm.

[0057] like Figure 1 As shown, the method for preparing the patterned perovskite battery assembly includes the following steps:

[0058] S1, dividing the surface of the base layer 10 into a first coating area and a second coating area;

[0059] S2, coating the first coating area with a nanoparticle suspension to form a discontinuous lyophobic portion 210 having an island-like nano-lattice structure after drying;

[0060] S3 , coating the second coating area with a perovskite solution 30 , and forming a perovskite film layer 220 after drying, that is, obtaining a patterned perovskite film layer 20 .

[0061] Among them, the nanoparticle material in the nanoparticle suspension in step S2 is SnO2, the solvent is ethanol, and the concentration is 0.8 mg / mL; the coating methods in steps S2 and S3 are both piezoelectric inkjet coating; the drying in step S2 is air knife drying; and the drying in step S3 is natural air drying.

[0062] As mentioned above, the patterned perovskite film layer 20 includes a pattern area 21 and a perovskite film area 22. The discontinuous lyophobic portion 210 is located in the pattern area 21, and the perovskite film layer 220 is located in the perovskite film area 22. The contact angle tester shows that the contact angle θ1 of the perovskite solution 30 in the pattern area 21 is 82° (see FIG. Figure 3 ), the contact angle θ2 in the second coating area is 8° (see Figure 4 ).

[0063] In this embodiment, the material and thickness of the base layer 10 have no significant effect on the formation of the discontinuous lyophobic portion 210 , and as long as the wettability of the perovskite solution 30 and the relevant interface meets the above conditions, the specific composition of the perovskite solution 30 will not be specifically described here.

[0064] Example 2

[0065] This embodiment provides a patterned perovskite battery component and a preparation method thereof, such as Figure 2 As shown, the patterned perovskite battery assembly includes a stacked base layer 10 and a patterned perovskite film layer 20, the patterned perovskite film layer 20 includes a pattern area 21 and a perovskite film area 22, the pattern area 21 is provided with a non-continuous liquid-repellent portion 210 with an island-like nano-dot array structure, the perovskite film area 22 is provided with a perovskite film layer 220, and there is an adaptability difference between the surface energies of the non-continuous liquid-repellent portion 210 and the perovskite film layer 220.

[0066] Specifically, the nanoparticles in the discontinuous lyophobic portion 210 are made of TiO 2 and have an average size of 120 nm; and the average thickness of the discontinuous lyophobic portion 210 is 120 nm.

[0067] like Figure 1 As shown, the method for preparing the patterned perovskite battery assembly includes the following steps:

[0068] S1, dividing the surface of the base layer 10 into a first coating area and a second coating area;

[0069] S2, coating the first coating area with a nanoparticle suspension to form a discontinuous lyophobic portion 210 having an island-like nano-lattice structure after drying;

[0070] S3 , coating the second coating area with a perovskite solution 30 , and forming a perovskite film layer 220 after drying, that is, obtaining a patterned perovskite film layer 20 .

[0071] Among them, the nanoparticle material in the nanoparticle suspension in step S2 is TiO2, the solvent is isopropyl alcohol, and the concentration is 0.6 mg / mL; the coating methods in steps S2 and S3 are both piezoelectric inkjet coating; the drying in step S2 is air knife drying; and the drying in step S3 is natural air drying.

[0072] As mentioned above, the patterned perovskite film layer 20 includes a pattern area 21 and a perovskite film area 22. The discontinuous lyophobic portion 210 is located in the pattern area 21, and the perovskite film layer 220 is located in the perovskite film area 22. The contact angle tester shows that the contact angle θ1 of the perovskite solution 30 in the pattern area 21 is 75° (see FIG. Figure 3 ), the contact angle θ2 in the second coating area is 8° (see Figure 4 ).

[0073] In this embodiment, the material and thickness of the base layer 10 have no significant effect on the formation of the discontinuous lyophobic portion 210 , and as long as the wettability of the perovskite solution 30 and the relevant interface meets the above conditions, the specific composition of the perovskite solution 30 will not be specifically described here.

[0074] Example 3

[0075] This embodiment provides an apparatus for preparing a patterned perovskite cell assembly, comprising a carrier, a first coating assembly, and a second coating assembly. The carrier is used to secure a substrate layer 10, the surface of which is divided into a first coating area and a second coating area. The first coating assembly is used to apply a nanoparticle suspension to the first coating area to form a discontinuous lyophobic portion 210 with an island-like nanolattice structure. The second coating assembly is used to apply a perovskite solution 30 to the second coating area to form a perovskite film layer 220.

[0076] like Figure 5 As shown, the first coating component includes a first liquid storage box (not shown in the figure) and a first nozzle 41 that are interconnected. The first liquid storage box is used to store the nanoparticle suspension, and the first nozzle 41 is used to coat the nanoparticle suspension along a preset trajectory; the second coating component includes a second liquid storage box (not shown in the figure) and a second nozzle 42 that are interconnected. The second liquid storage box is used to store the perovskite solution 30, and the second nozzle 42 is used to coat the perovskite solution 30 along a preset trajectory; an air knife 43 is provided between the first coating component and the second coating component for drying the nanoparticle suspension.

[0077] Comparative Example 1

[0078] This comparative example provides a patterned perovskite battery component and a preparation method thereof, which differs from Example 1 only in that the nanoparticle suspension is not pre-coated before the perovskite solution 30 is applied, and the remaining steps and conditions are the same as those in Example 1.

[0079] Depend on Figure 6 It can be seen that the pattern fineness of the perovskite film layer 220 in the battery assembly obtained in this comparative example is far less than that of Example 1, and the perovskite solution 30 has obvious overflow areas at the edge of the pattern area 21.

[0080] It can be seen that the preparation method provided by the present invention coats the nanoparticle suspension on a specific area of the base layer, artificially creates a local non-wetting area, that is, a discontinuous lyophobic part of the island-like nano-lattice structure, so that there is an adaptability difference between the surface energy of the discontinuous lyophobic part and the perovskite film layer, thereby effectively inhibiting the perovskite solution from extending to the pattern area, and finally forming a patterned perovskite film layer, realizing controllable fine patterning of the perovskite film layer, and at the same time taking into account the coating uniformity of the internal effective area, thereby ensuring the photoelectric conversion efficiency of the perovskite battery and the production yield of large-area batteries.

[0081] The above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention fall within the protection scope and disclosure scope of the present invention.

Claims

1. A method for preparing a patterned perovskite battery component, characterized in that: The preparation method comprises at least the following steps: S1, dividing the surface of the base layer into a first coating area and a second coating area; S2, coating the first coating area with a nanoparticle suspension to form a discontinuous lyophobic portion having an island-like nano-lattice structure after drying; S3, coating the second coating area with a perovskite solution, and forming a perovskite film layer after drying, thereby obtaining a patterned perovskite film layer; The patterned perovskite film layer includes a pattern area and a perovskite film area, the discontinuous liquid-repellent portion is located in the pattern area, the perovskite film layer is located in the perovskite film area, and there is an adaptability difference between the surface energies of the discontinuous liquid-repellent portion and the perovskite film layer.

2. The method for preparing a patterned perovskite battery assembly according to claim 1, wherein: The surfaces of the discontinuous lyophobic portion and the perovskite film layer can satisfy the following conditions: The discontinuous lyophobic portion and the adjacent region of the perovskite film layer can repel each other to form the distinguished pattern region and the perovskite film region; and / or, setting the contact angle of the perovskite solution in the pattern area to θ1, and setting the contact angle of the perovskite solution in the second coating area to θ2, then: θ1>θ2; Wherein, the contact angle θ1 satisfies: 70°≤θ1≤90°; And / or, the contact angle θ2 satisfies: θ2≤20°.

3. The method for preparing a patterned perovskite battery assembly according to claim 1 or 2, characterized in that: The nanoparticles in the nanoparticle suspension in step S2 are made of any one of metal oxides, small molecule organic matter, or high molecular polymers, or a combination of at least two thereof; Wherein, the metal oxide includes SnO2 and / or TiO2; and / or, the size of the nanoparticles in the nanoparticle suspension in step S2 is ≤ 200 nm; and / or, the solvent in the nanoparticle suspension in step S2 is a volatile solvent; And / or, the solvent in the nanoparticle suspension in step S2 includes ethanol and / or isopropanol; And / or, the concentration of the nanoparticle suspension in step S2 is ≤5 mg / mL.

4. The method for preparing a patterned perovskite battery assembly according to claim 1 or 2, characterized in that: The average thickness of the discontinuous lyophobic portion in step S2 is ≤200 nm.

5. The method for preparing a patterned perovskite battery assembly according to claim 1 or 2, characterized in that: The coating method in step S2 includes any one of piezoelectric inkjet coating, slit coating, electrostatic spraying, ultrasonic spraying, electrofluid spraying, screen printing or vapor deposition; And / or, the drying method in step S2 includes air knife drying.

6. A patterned perovskite battery component, characterized in that: The patterned perovskite battery assembly comprises at least a stacked base layer and a patterned perovskite film layer, the patterned perovskite film layer comprises a pattern area and a perovskite film area, the pattern area is provided with a discontinuous lyophobic portion having an island-like nano-lattice structure, the perovskite film area is provided with a perovskite film layer, and there is an adaptability difference between the surface energies of the discontinuous lyophobic portion and the perovskite film layer.

7. The patterned perovskite battery assembly according to claim 6, characterized in that: The surfaces of the discontinuous lyophobic portion and the perovskite film layer can satisfy the following conditions: The discontinuous lyophobic portion and the adjacent region of the perovskite film layer can repel each other to form the distinguished pattern region and the perovskite film region.

8. The patterned perovskite battery assembly according to claim 6 or 7, characterized in that: The nanoparticles in the discontinuous lyophobic portion are made of any one of metal oxides, small molecule organic matter, or high molecular polymers, or a combination of at least two thereof; Wherein, the metal oxide includes SnO2 and / or TiO2; and / or, the size of the nanoparticles in the discontinuous lyophobic portion is ≤200 nm; And / or, the average thickness of the discontinuous lyophobic portion is ≤200 nm.

9. A device for preparing a patterned perovskite battery assembly, characterized in that: The device comprises at least a carrier, a first coating component and a second coating component; The carrier is used to fix the base layer, and the surface of the base layer is divided into a first coating area and a second coating area; The first coating assembly is used to coat the nanoparticle suspension on the first coating area to form a discontinuous lyophobic portion of an island-like nano-lattice structure; The second coating assembly is used to coat the perovskite solution in the second coating area to form a perovskite film layer.

10. The device according to claim 9, characterized in that The first coating assembly includes a first liquid storage box and a first nozzle that are interconnected, the first liquid storage box is used to store the nanoparticle suspension, and the first nozzle is used to coat the nanoparticle suspension along a preset trajectory; And / or, the second coating assembly includes a second liquid storage box and a second nozzle that are interconnected, the second liquid storage box is used to store the perovskite solution, and the second nozzle is used to coat the perovskite solution along a preset trajectory; And / or, an air knife is provided between the first coating assembly and the second coating assembly for drying the nanoparticle suspension.

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