A method for encapsulating perovskite cells in space and the perovskite cells obtained

Abstract

This invention discloses a method for on-orbit encapsulation of perovskite solar cells in space and the resulting perovskite solar cells, belonging to the field of on-orbit manufacturing of space batteries. The method includes the following steps: selecting space-grade silicone rubber and cerium-doped glass microspheres with a diameter of 0.03-0.05 mm, mixing them uniformly at a mass ratio of 2:8 for 5-10 minutes, uniformly printing them onto the perovskite solar cell using an electro-spraying device, and then transferring them to a constant-temperature platform for 80°C aging treatment to form an initial transparent encapsulation film. Further surface modification treatment of the encapsulation film is performed using an electro-spraying device to achieve ultraviolet blocking. This invention enables the encapsulation and fabrication of perovskite solar cells in space, while overcoming the effects of microgravity in space.

Description

Technical Field

[0001] This invention belongs to the field of on-orbit manufacturing technology of space batteries, specifically relating to a method for on-orbit encapsulation of perovskite batteries and the resulting perovskite batteries. Background Technology

[0002] With increasingly frequent human exploration activities in outer space and a growing number of spacecraft in orbit, on-orbit maintenance has become a priority, including on-orbit 3D printing of various repair tools, nuts, and other structural components. Energy systems are crucial for spacecraft, and solar cells are the primary form of power generation in space. In-situ on-orbit manufacturing of solar cells will fundamentally solve the energy supply problem for spacecraft, enabling the construction of space bases. Electro-injection printing of perovskite cells can overcome the effects of zero gravity, enabling on-orbit fabrication of solar cells. However, solar cells require encapsulation and protection during use, typically using glass covers. Existing technology CN117897019A describes a perovskite cell encapsulation method using quartz glass and thermosetting epoxy resin. This invention involves encapsulation on the ground, not on-orbit manufacturing, and therefore cannot overcome the effects of zero gravity. Summary of the Invention

[0003] To address the technical problems existing in the prior art, this invention provides a method for on-orbit encapsulation of perovskite solar cells in space and the resulting perovskite solar cells, which can realize the preparation of perovskite solar cell encapsulation films in space and overcome the influence of microgravity in space.

[0004] This invention is implemented as follows: a method for on-orbit encapsulation of perovskite solar cells in space, comprising the following steps:

[0005] (1) Mix the space-use silicone rubber and glass microspheres and stir evenly to complete the slurry preparation;

[0006] (2) The above-prepared slurry was uniformly printed onto the surface of the perovskite battery using electro-spray printing to prepare a transparent encapsulation film.

[0007] (3) Perform constant temperature aging treatment on the printed encapsulation film;

[0008] (4) The encapsulation film after aging is activated by electro-spraying wet method to improve the UV cutoff capability.

[0009] The glass microspheres are cerium-doped glass microspheres with a diameter of 0.03 mm to 0.05 mm.

[0010] The silicone rubber used in the space is a room temperature curing RTV.

[0011] The space is prepared by mixing silicone rubber and glass microspheres at a mass ratio of 2:8, and then uniformly mixing them for 5 to 10 minutes using a stirrer.

[0012] The aging process involves heating the printed transparent encapsulation film to a constant temperature of 80°C for 2 hours.

[0013] The electro-spray wet activation process involves electro-spraying siloxane for wet activation, forming a UV-blocking protective layer on the surface.

[0014] The perovskite solar cell prepared by the above-mentioned method of on-orbit encapsulation of perovskite solar cells in space.

[0015] The advantages and technical effects of this invention are: it enables the fabrication of perovskite battery encapsulation films in space; at the same time, it overcomes the influence of microgravity through electro-spraying to achieve on-orbit printing of encapsulation films; and it performs wet activation treatment on the film surface to block ultraviolet light. Attached Figure Description

[0016] Figure 1 This is a flowchart of the method for on-orbit encapsulation of perovskite solar cells in space according to the present invention;

[0017] Figure 2 This is a schematic diagram illustrating the packaging principle of the space-to-orbit encapsulation method for perovskite solar cells according to the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] like Figure 1 As shown, the method for on-orbit encapsulation of perovskite solar cells according to the present invention includes the following steps:

[0020] (1) Mix the space-use silicone rubber and glass microspheres and stir evenly to complete the slurry preparation;

[0021] (2) The above-prepared slurry was uniformly printed onto the surface of the perovskite battery using electro-spray printing to prepare a transparent encapsulation film.

[0022] (3) Perform constant temperature aging treatment on the printed encapsulation film;

[0023] (4) The encapsulation film after aging is activated by electro-spraying wet method to improve the UV cutoff capability.

[0024] The glass microspheres are cerium-doped glass microspheres with a diameter of 0.03 mm to 0.05 mm.

[0025] The silicone rubber used in the space is a room temperature curing RTV.

[0026] The space is prepared by mixing silicone rubber and glass microspheres at a mass ratio of 2:8, and then uniformly mixing them for 5 to 10 minutes using a stirrer.

[0027] The aging process involves heating the printed transparent encapsulation film to a constant temperature of 80°C for 2 hours.

[0028] The electro-spray wet activation process involves electro-spraying siloxane for wet activation, forming a UV-blocking protective layer on the surface.

[0029] The perovskite solar cell prepared by the above-mentioned method of on-orbit encapsulation of perovskite solar cells in space.

[0030] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0031] like Figure 2 As shown, the slurry preparation system 1 prioritizes material screening, selecting space-grade silicone rubber and cerium-doped glass microspheres. The space-grade silicone rubber can preferably be cured at room temperature using RTV, and the glass microspheres preferably have a diameter of 0.03 mm to 0.05 mm.

[0032] In slurry preparation system 1, silicone rubber and glass microspheres are stirred uniformly for 5-10 minutes using a stirrer according to the mass ratio.

[0033] The encapsulation printing system 2, after the slurry is prepared, controls the directional delivery of the encapsulation slurry to the surface of the perovskite battery through electro-spray printing to form a transparent encapsulation film.

[0034] The aging process system 3 heats the printed transparent encapsulation film to 80°C and maintains the temperature for 2 hours for aging treatment.

[0035] In the UV protection printing system 4, the transparent encapsulation film after aging treatment is preferentially activated by electro-spraying siloxane wet process to form a UV-blocking protective layer on the surface.

[0036] This invention enables the fabrication of perovskite solar cell encapsulation films in space, while simultaneously overcoming the effects of microgravity in orbit. In-situ, in-orbit manufacturing of solar cells will fundamentally solve the energy supply problem for spacecraft, facilitating the construction of space bases.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for on-orbit encapsulation of perovskite solar cells in space, characterized in that, Includes the following steps: (1) Mix the space-use silicone rubber and glass microspheres and stir evenly to complete the slurry preparation; (2) The above-prepared slurry was uniformly printed onto the surface of the perovskite battery using electro-spray printing to prepare a transparent encapsulation film. (3) Perform constant temperature aging treatment on the printed encapsulation film; (4) The encapsulation film after aging is activated by electro-spraying wet method to improve the UV cutoff capability.

2. The method for on-orbit encapsulation of perovskite solar cells according to claim 1, characterized in that, The glass microspheres are cerium-doped glass microspheres with a diameter of 0.03 mm to 0.05 mm.

3. The method for on-orbit encapsulation of perovskite solar cells according to claim 1, characterized in that, The silicone rubber used in the space is a room temperature curing RTV.

4. The method for on-orbit encapsulation of perovskite solar cells according to claim 1, characterized in that, The space is prepared by mixing silicone rubber and glass microspheres at a mass ratio of 2:8, and then uniformly mixing them for 5 to 10 minutes using a stirrer.

5. The method for on-orbit encapsulation of perovskite solar cells according to claim 1, characterized in that, The aging process involves heating the printed transparent encapsulation film to a constant temperature of 80°C for 2 hours.

6. The method for on-orbit encapsulation of perovskite solar cells according to claim 1, characterized in that, The electro-spray wet activation process involves electro-spraying siloxane for wet activation, forming a UV-blocking protective layer on the surface.

7. A perovskite solar cell prepared by the method of on-orbit encapsulation of a perovskite solar cell as described in any one of claims 1-6.

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