Flexible perovskite CIPV power generation awning glass capable of being processed in different places
The flexible perovskite CIPV power generation canopy glass with a five-layer stacked structure has solved the industrialization obstacles of chip packaging and transportation, realizing the stable transportation and lamination of flexible perovskite chips, meeting the power generation, ultraviolet blocking and infrared heat insulation functions of new energy vehicles, and adapting to the vehicle assembly process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, flexible perovskite chips are sensitive to high temperatures, water, oxygen, and light, which makes the chip packaging and transportation process subject to strict environmental and process window requirements. This makes it impossible to directly complete chip manufacturing and packaging in automotive glass factories, resulting in industrialization obstacles.
The flexible perovskite CIPV power generation canopy glass with a five-layer stacked structure can be processed off-site. It includes an upper glass layer, a PVB layer, a perovskite module, a PVB layer, and a lower glass layer. It is transported in the form of a pre-packaged semi-finished product and undergoes secondary lamination at an automotive glass factory to achieve stable transportation and reliable lamination of the chip.
It has achieved stable transportation and reliable lamination of flexible perovskite chips, improved the quality of interlayer bonding and the consistency of finished products, met the power generation, ultraviolet blocking and infrared heat insulation functions of the sunroof of new energy vehicles, and adapted to the assembly process requirements of the whole vehicle.
Smart Images
Figure CN121646102A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle-mounted photovoltaic technology, specifically to a flexible perovskite CIPV power-generating canopy glass that can be processed in different locations. Background Technology
[0002] Vehicle-mounted photovoltaics can directly convert solar energy into electricity, providing power to new energy vehicles in both parked and driving scenarios. Flexible perovskite solar cells can achieve semi-transparency and power generation while also possessing ultraviolet blocking and infrared heat insulation properties. However, due to the sensitivity of perovskite devices to high temperatures, water and oxygen, light, and potential, as well as the potential adverse reactions at multilayer interfaces, the chip packaging and transportation processes have strict requirements on environmental and process windows. The feasibility of directly completing chip manufacturing and packaging in automotive glass factories is low, resulting in an industrialization obstacle that urgently needs to be addressed: "chips cannot be transported separately for post-processing." Summary of the Invention
[0003] To overcome the aforementioned deficiencies of the prior art, this invention proposes a flexible perovskite CIPV power-generating skylight glass that can be processed in different locations and its preparation method. This allows the flexible perovskite chip to be transported to different locations as a pre-packaged semi-finished product, and the secondary lamination can be reliably completed at an automotive glass factory, thereby realizing the integrated application of power generation function and skylight glass in vehicles, thus solving the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: A flexible perovskite CIPV power generation canopy glass that can be processed in different locations adopts a five-layer stacked structure, which includes an upper glass layer, a PVB layer, a perovskite module, a PVB layer and a lower glass layer in sequence.
[0005] As a further aspect of the present invention: the first layer is the upper glass, which is an automotive sunroof glass made of 2mm ultra-white transparent glass. After being hot-bent and formed according to the vehicle model, this glass is cleaned with deionized water, dried, and then sent to the interlayer bonding chamber for lamination processing.
[0006] As a further aspect of the present invention: the second layer is a PVB layer, using 0.38mm PVB as the interlayer film.
[0007] As a further embodiment of the present invention: the third layer adopts a perovskite component, which is a perovskite semi-finished product processed in another location; the perovskite semi-finished product is a PET, POE and PET structure; the thickness ratio of PET, POE and PET is 1:2:1; the thickness of the perovskite component is 0.6mm; the thicknesses of PET, POE and PET are 0.15mm, 0.30mm and 0.15mm respectively; and it is disposed below PVB.
[0008] As a further aspect of the present invention: the fourth layer is a PVB layer, using 0.38mm PVB as the interlayer film.
[0009] As a further aspect of the present invention: the fifth layer is the lower glass, which is an automotive sunroof glass made of 2mm float transparent white glass. This glass is cut, edged, cleaned and dried according to the car model, then printed with black edges, and after being hot-bent, it is cleaned with deionized water and air-dried before being sent to the interlayer bonding chamber for stacking and bonding.
[0010] As a further aspect of this invention: the assembled automotive sunroof glass sleeve is then sent to an IKU unit for pre-pressing. Specifically, the assembled sleeve is placed in an IKU ten-segment tungsten wire heating device for pre-pressing, with a time control set at no less than 50 seconds and a vacuum of 94–110 kPa. From May to October: zone 1–5 temperatures 80–120℃, zone 6–10 temperatures 120–130℃; from November to April: zone 1–5 temperatures 90–120℃, zone 6–10 temperatures 120–130℃. Pre-pressing is used to remove interlayer gas and achieve initial bonding and positioning. The process parameters are shown in Table 1.
[0011] Table 1
[0012] As a further aspect of this invention: the IKU-treated automotive sunroof glass, after removing the sleeve, is placed on a lamination trolley and then processed in a high-pressure lamination autoclave. Specifically: after removing the sleeve, the laminated glass is placed in the autoclave for low-temperature PVB lamination. The heating stages are sequentially 65℃ / 0.3MPa / 11min, 105℃ / 0.70MPa / 45min, and 125℃ / 1.0MPa / 30min; the isothermal stage is 135℃ / 1.0MPa / 19–40min; the cooling stages are sequentially 110℃, 95℃, 75℃, and 45℃; exhaust is performed at 41℃, with an allowable door opening pressure of 0.005MPa. A 1min vacuum operation is performed before heating. The process parameters are shown in Table 2.
[0013] Table 2
[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: The flexible perovskite CIPV power-generating roof glass proposed in this invention achieves stable transportation and reliable lamination of flexible perovskite chips through a process chain of "pre-packaging at the component end + secondary lamination at the glass factory," breaking through the bottleneck of off-site processing; the temperature-time-pressure window of pre-pressing and lamination matches the device packaging requirements, improving the interlayer bonding quality and finished product consistency; the resulting roof power-generating glass achieves functions such as power generation, ultraviolet blocking, and infrared heat insulation under semi-transparent conditions, adapting to the application scenarios of new energy vehicle roofs, and supporting the appearance requirements of black edge shielding leads and edge sealing in the vehicle assembly process. Attached Figure Description
[0015] Figure 1 This is a structural diagram of a flexible perovskite CIPV product that can be processed in different locations. Figure 2 This is a structural diagram of a perovskite assembly.
[0016] In the diagram: 1. Upper glass; 2. PVB layer; 3. Perovskite module; 31. PET; 32. POE; 33. PET; 4. PVB layer; 401. End face support; 44. Upper flange; 5. Lower glass. Detailed Implementation
[0017] The following detailed description, in conjunction with the accompanying drawings and embodiments, illustrates a specific implementation of the flexible perovskite CIPV power-generating canopy glass capable of being processed in different locations, so that those skilled in the art can understand and implement it accordingly.
[0018] Example 1: Combination Figure 1 and Figure 2 As shown, a flexible perovskite CIPV power generation canopy glass that can be processed off-site adopts a five-layer stacked structure, including an upper glass layer 1, a PVB layer 2, a perovskite module 3, a PVB layer 4, and a lower glass layer 5. The upper glass is made of 2mm thick ultra-clear transparent glass, which is hot-bent, cleaned with deionized water, and air-dried. The lower glass is made of 2mm thick transparent white glass, which is cut, edge-ground, cleaned, dried, black-edge printed, and hot-bent. Before stacking, it is also cleaned with deionized water and air-dried. The interlayer uses a 0.38mm thick PVB film. The flexible perovskite semi-finished product is a three-layer encapsulation of 0.15mm PET, 0.30mm POE, and 0.15mm PET, with a total thickness of 0.60mm.
[0019] Example 2: This example provides a pre-packaging and logistics process for a flexible semi-finished product, specifically the fabrication of a perovskite solar cell chip. The perovskite solar cell chip is fabricated using a 0.30mm POE substrate at the module end. Then, 0.15mm PET sheets are stacked on both sides of the chip, and encapsulation is completed using a laminator, resulting in a flexible semi-finished product with a total thickness of 0.60mm. The encapsulated semi-finished product is then sealed and cushioned before being transported to an automotive glass factory.
[0020] Example 3: This example provides a design for sleeve pre-compression parameters and zoning. In the interlayer bonding chamber, the laminated sheets are stacked in the order of "upper glass—0.38mm PVB—flexible semi-finished product—lower glass." The laminated sheets are then placed in an IKU ten-segment tungsten wire heating device for sleeve pre-compression, with a time control set to no less than 50 seconds and a vacuum of 94–110 kPa. From May to October: zone 1–5 temperature 80–120℃, zone 6–10 temperature 120–130℃; from November to April: zone 1–5 temperature 90–120℃, zone 6–10 temperature 120–130℃. Pre-compression is used to remove interlayer gas and achieve initial bonding and positioning.
[0021] Example 4: This example provides a low-temperature PVB lamination process in an autoclave. After removing the sleeve, the laminate is placed in an autoclave for low-temperature PVB lamination. The heating stages are sequentially 65℃ / 0.3MPa / 11min, 105℃ / 0.70MPa / 45min, and 125℃ / 1.0MPa / 30min; the isothermal stage is 135℃ / 1.0MPa / 19–40min; the cooling stages are sequentially 110℃, 95℃, 75℃, and 45℃; venting is performed at 41℃, with an allowable door opening pressure of 0.005MPa. A 1min vacuum operation is performed before heating.
[0022] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A flexible off-site processable perovskite (CIPV) power-generating curtain glass with a five-layer stack structure, characterized in that, It sequentially comprises an upper glass (1), a PVB layer (2), a perovskite assembly (3), a PVB layer (4) and a lower glass (5); the perovskite assembly (3) is a perovskite semi-finished product processed in a different place.
2. The off-site processable flexible perovskite CIPV power-generating curtain glass according to claim 1, characterized in that, The perovskite semi-finished product is of PET, POE and PET structure.
3. The off-site processable flexible perovskite CIPV power-generating curtain glass according to claim 2, characterized in that, The thickness ratio of PET, POE and PET is 1:2:
1.
4. The off-site processable flexible perovskite CIPV power-generating curtain glass according to claim 3, characterized in that, The thickness of the perovskite assembly is 0.6 mm.
5. The off-site processable flexible perovskite CIPV power-generating curtain glass according to claim 4, characterized in that, The laminated sheet is placed in an IKU ten-section tungsten wire heating device for sleeve pre-pressing, and the time control is set to be not less than 50 s and the vacuum is 94-110 kPa.
6. The off-site processable flexible perovskite CIPV power-generating curtain glass according to claim 5, characterized in that, In May-October: the temperature of 1-5 zones is 80-120℃, and the temperature of 6-10 zones is 120-130℃; in November-April: the temperature of 1-5 zones is 90-120℃, and the temperature of 6-10 zones is 120-130℃; the pre-pressing is used for removing interlayer gas, realizing initial adhesion and positioning.
7. The off-site processable flexible perovskite CIPV power-generating curtain glass according to claim 1, wherein, After removing the sleeve, the laminated sheet is placed in an autoclave for low-temperature PVB lamination; the temperature rising stage is 65℃ / 0.3MPa / 11min, 105℃ / 0.70MPa / 45min and 125℃ / 1.0MPa / 30min in sequence; the constant temperature stage is 135℃ / 1.0MPa / 19-40min; the temperature falling stage is 110℃, 95℃, 75℃ and 45℃ in sequence; the exhaust is implemented at 41℃, and the allowable opening door pressure is 0.005MPa; the vacuum operation is implemented for 1min before temperature rising.
8. The off-site processable flexible perovskite (CIPV) power-generating curtain glass of claim 1, wherein, The second layer (2) and the fourth layer (4) are PVB layers, and 0.38mm PVB is used as the interlayer middle layer adhesive sheet.
9. The off-site processable flexible perovskite CIPV power-generating curtain glass according to claim 1, wherein, The first layer is an upper glass (1), and 2mm super white transparent glass is used to produce an automobile sunroof glass; after heat bending forming, the layer of glass is cleaned with deionized water, dried, and then sent to a laminated adhesive room for laminated sheet processing.
10. The off-site processable flexible perovskite (CIPV) power-generating curtain glass of claim 1, wherein, The fifth layer is a lower glass (5), and 2mm float white glass is used to produce an automobile sunroof glass; after cutting, edge grinding, cleaning and drying, the layer of glass is printed with black edges, and then heat-bent and formed, cleaned with deionized water, dried, and then sent to a laminated adhesive room for laminated sheet processing.