Multi-component perovskite solar cell laminated glass system for vehicle

Abstract

The utility model provides a multi-component perovskite solar cell laminated glass system for a vehicle, and solves the problem that a crystalline silicon solar cell component adopted by an existing CIPV system is opaque and cannot be applied to parts needing lighting, such as roof glass or vehicle window glass. The perovskite solar cell laminated glass comprises perovskite solar cell laminated glass, the perovskite solar cell laminated glass comprises a first light-transmitting plate layer and a second light-transmitting plate layer, and a transparent first perovskite cell layer is arranged on one side, facing the second light-transmitting plate layer, of the first light-transmitting plate layer. A transparent second perovskite cell layer is arranged on one side, facing the first light-transmitting plate layer, of the second light-transmitting plate layer; the second perovskite cell layer is located on the side facing the interior of the vehicle, and the first perovskite cell layer is located on the side facing the exterior of the vehicle. The first perovskite cell layer is made of a wide-band-gap perovskite material; the second perovskite cell layer is made of a narrow-band-gap perovskite material; and a transparent bonding layer is filled between the first perovskite cell layer and the second perovskite cell layer.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted integrated photovoltaic (CIPV) systems, in particular to a multi-component perovskite solar cell laminated glass system for vehicles. Background Art

[0002] With the rapid growth of global demand for renewable energy, the application of solar photovoltaic technology in transportation is receiving increasing attention. In particular, in the field of electric and hybrid vehicles, vehicle-integrated photovoltaic systems (CIPV) are gradually becoming one of the key technologies for improving vehicle energy efficiency. By installing solar cells on the roof or windows of a car, the vehicle can obtain additional power while driving or parked, thereby improving its range, reducing dependence on charging stations, and promoting the development of sustainable transportation. However, existing CIPV technology still has the following drawbacks:

[0003] Currently, many on-board photovoltaic systems use crystalline silicon or thin-film solar cells. Although these materials are mature and reliable, they also have some obvious defects, mainly including the following aspects:

[0004] (1) Weight and thickness issues: Crystalline silicon solar cell modules are usually heavy and thick, which can easily increase the overall weight of the vehicle, thereby affecting the vehicle's energy efficiency and handling performance. In particular, for electric vehicles that require lightweight design, traditional solar cell modules are difficult to adapt to the application of roofs and windows.

[0005] (2) Low integration: Due to size and structural limitations, traditional photovoltaic cells are difficult to perfectly integrate with roof glass or windows. Most existing CIPV systems install solar cells directly on the surface of the roof, which not only affects the appearance but also may cause a decrease in aerodynamic performance.

[0006] (3) Insufficient transparency: Most crystalline silicon solar cells are not transparent, which hinders their application in parts such as roof windows and windows. This opacity limits the natural lighting inside the vehicle, especially in models with more glass coverage, which may affect the comfort and vision of passengers in the vehicle. Utility Model Content

[0007] In order to solve the problem in the background technology that the crystalline silicon solar cell modules used in the existing CIPV system are opaque and cannot be used in areas where lighting is required, such as roof glass or window glass, the utility model proposes a multi-component perovskite solar cell laminated glass system for vehicles.

[0008] The technical solution of the utility model is: a multi-component perovskite solar cell laminated glass system for vehicles, comprising a perovskite solar cell laminated glass, wherein the perovskite solar cell laminated glass comprises a first light-transmitting plate layer and a second light-transmitting plate layer, wherein a transparent first perovskite cell layer is provided on a side of the first light-transmitting plate layer facing the second light-transmitting plate layer, and a transparent second perovskite cell layer is provided on a side of the second light-transmitting plate layer facing the first light-transmitting plate layer;

[0009] The second perovskite cell layer is located on the side facing the interior of the vehicle, and the first perovskite cell layer is located on the side facing the exterior of the vehicle;

[0010] The first perovskite cell layer is made of a wide-bandgap perovskite material to absorb short-wavelength light;

[0011] The second perovskite cell layer is made of narrow-bandgap perovskite material to absorb long-wavelength light;

[0012] A transparent adhesive layer is filled between the first perovskite cell layer and the second perovskite cell layer;

[0013] The first perovskite battery layer and the second perovskite battery layer are both electrically connected to the vehicle power supply system.

[0014] Preferably, the light wave absorption range of the first perovskite cell layer is 300 to 800 nm, and the light wave absorption range of the second perovskite cell layer is 800 to 1200 nm.

[0015] Preferably, the first light-transmitting plate layer is transparent tempered glass or low-iron glass.

[0016] Preferably, the thickness of the first light-transmitting plate layer ranges from 3 mm to 5 mm.

[0017] Preferably, the second light-transmitting plate layer is transparent tempered glass or composite glass.

[0018] Preferably, the thickness of the second light-transmitting plate layer ranges from 3 mm to 5 mm.

[0019] Preferably, the adhesive layer is made of a polymer material or a composite material.

[0020] Preferably, a transparent first encapsulation layer is provided on a side of the first light-transmitting plate layer away from the second light-transmitting plate layer.

[0021] Preferably, a transparent second encapsulation layer is provided on a side of the second light-transmitting plate layer away from the first light-transmitting plate layer.

[0022] Preferably, the first encapsulation layer and the second encapsulation layer are both transparent waterproof films.

[0023] Advantages of the present invention: (1) Advantages of perovskite solar cells over crystalline silicon solar cells:

[0024] Perovskite solar cells, as a new generation of photovoltaic technology, have received widespread attention in recent years. Compared with traditional crystalline silicon or thin-film solar cells, perovskite solar cells have significant advantages, making them an ideal choice for automotive photovoltaic systems:

[0025] Efficient Energy Conversion: Perovskite materials have excellent photoelectric conversion efficiency. In recent years, the efficiency of perovskite solar cells under laboratory conditions has exceeded 25%, approaching the level of crystalline silicon cells. This means that perovskite cells can generate more electricity within the same area, making them ideal for applications with limited space, such as car roofs.

[0026] Tunable transparency: The transparency of perovskite materials can be controlled by adjusting their layered structure or material composition. Transparent or semi-transparent perovskite solar cells can not only generate electricity but also allow some light to pass through, making them ideal for use in vehicle roof windows or car windows without affecting the lighting and passenger experience inside the vehicle.

[0027] Low-cost production: Perovskite solar cells are relatively inexpensive to manufacture, especially compared to crystalline silicon cells. The production process does not require high-temperature processing or complex processes, making them more economical for large-scale production. Furthermore, perovskite materials can be mass-produced via a roll-to-roll process, further reducing production costs.

[0028] (2) Broad spectrum light absorption: This system uses a dual-component perovskite material design. The outer first perovskite cell layer absorbs high-frequency light, such as ultraviolet and blue light, while the remaining medium and low-frequency light passes through the outer first perovskite cell layer and is absorbed by the inner second perovskite cell layer. This design enables the system to achieve broad spectrum absorption, maximize photoelectric conversion efficiency, and reduce energy loss. In addition, the layered absorption design can also reduce the photothermal load of a single layer of solar cell material and improve the long-term stability of perovskite solar cells.

[0029] (3) Lightweight structure: The flexibility and thin film properties of perovskite cells give the roof window excellent lightweight properties, making it suitable for various car models.

[0030] (4) Combination of aesthetics and practicality: The perovskite solar laminated glass system can not only meet the natural lighting needs of the vehicle, but also replace the vehicle's own glass and be integrated with the vehicle, ensuring the mechanical properties and aesthetic performance of the roof window and side window parts.

[0031] (5) Environmental protection and energy saving: The clean electricity generated by the perovskite solar laminated glass system not only improves the energy utilization efficiency of the vehicle, but also reduces dependence on external charging facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the main structure of Example 1.

[0034] In the figure, 1, first light-transmitting plate layer, 2, second light-transmitting plate layer, 3, first perovskite battery layer, 4, second perovskite battery layer, 5, adhesive layer, 6, first encapsulation layer, 7, second encapsulation layer. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: A multi-component perovskite solar cell laminated glass system for a vehicle, such as Figure 1 As shown, it includes a perovskite solar cell laminated glass, which includes a first light-transmitting plate layer 1 and a second light-transmitting plate layer 2.

[0037] The first light-transmitting plate layer 1 can be made of high-transmittance tempered glass or low-iron glass, with a thickness generally ranging from 3mm to 5mm, to enhance impact resistance and reduce optical loss. In this embodiment, the first light-transmitting plate layer 1 is made of 5mm thick high-transmittance tempered glass.

[0038] The second light-transmitting plate layer 2 can be made of tempered glass or low-iron glass, with a thickness generally ranging from 3mm to 5mm, and mainly plays the role of structural support and battery packaging. In this embodiment, the second light-transmitting plate layer 2 is made of 5mm thick transparent tempered glass.

[0039] A transparent first perovskite cell layer 3 is provided on the side of the first light-transmitting plate layer 1 facing the second light-transmitting plate layer 2 , and a transparent second perovskite cell layer 4 is provided on the side of the second light-transmitting plate layer 2 facing the first light-transmitting plate layer 1 .

[0040] The second perovskite cell layer 4 is located on the side facing the interior of the vehicle, while the first perovskite cell layer 3 is located on the side facing the exterior. The transparency of the first and second perovskite cell layers 3 and 4 can be controlled by adjusting their layered structure or material composition. Transparent or semi-transparent perovskite solar cells not only generate electricity but also allow some light to pass through, making them ideal for use in vehicle roof or side windows without affecting the interior lighting and passenger experience.

[0041] The first perovskite cell layer 3 is made of a wide-bandgap perovskite material to absorb short-wavelength light; the absorption range is ultraviolet and visible light (300-800nm). Short-wavelength (high-energy) photons are easily absorbed in the material, so the outer first perovskite cell layer 3 should absorb high-frequency light, such as ultraviolet and blue light. This allows the remaining medium and low-frequency light to pass through the outer first perovskite cell layer 3 to the inner second perovskite cell layer 4, preventing the outer perovskite material from excessively absorbing infrared light, which would result in a loss of overall efficiency.

[0042] The second perovskite cell layer 4 is made of a narrow-bandgap perovskite material that absorbs long-wavelength light; its absorption range is near-infrared and infrared (800-1200nm). The second perovskite cell layer 4 is responsible for absorbing long-wavelength light, such as red and near-infrared light, that is not absorbed by the first perovskite cell layer 3. The choice of a material that absorbs low-frequency light in the second perovskite cell layer 4 effectively utilizes the remaining spectral region, thereby improving the overall efficiency of the tandem cell.

[0043] This dual-component perovskite material design enables the system to achieve broad-spectrum absorption, maximize photoelectric conversion efficiency, and reduce energy loss. In addition, the layered absorption design can also reduce the photothermal load of a single layer of perovskite material and improve the long-term stability of perovskite solar cells.

[0044] A transparent adhesive layer 5 is filled between the first perovskite cell layer 3 and the second perovskite cell layer 4. The adhesive layer 5 can be made of a polymeric material or a composite material. The polymeric material can be EVA (ethylene vinyl acetate) or PVB (polyvinyl butyral). The composite material can be double-sided adhesive plastic or double-sided adhesive glass with a transmittance exceeding 85%. In this embodiment, the adhesive layer 5 is made of EVA (ethylene vinyl acetate) material to form a thin film structure. The adhesive layer 5 is used to bond and fix the first perovskite cell layer 3 and the second perovskite cell layer 4 to ensure the stability and transparency of the structure.

[0045] A transparent first encapsulation layer 6 is provided on the side of the first light-transmitting panel layer 1 facing away from the second light-transmitting panel layer 2. A transparent second encapsulation layer 7 is provided on the side of the second light-transmitting panel layer 2 facing away from the first light-transmitting panel layer 1. In this embodiment, the first and second encapsulation layers 6 and 7 are transparent waterproof films made of high-performance materials such as fluorinated polymer films to block moisture and oxygen, thereby extending battery life.

[0046] The first perovskite battery layer 3 and the second perovskite battery layer 4 are both electrically connected to the vehicle power supply system using a concealed wiring method.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is determined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A multi-component perovskite solar cell laminated glass system for vehicles, characterized by: The invention comprises a perovskite solar cell laminated glass, wherein the perovskite solar cell laminated glass comprises a first light-transmitting plate layer (1) and a second light-transmitting plate layer (2), wherein a transparent first perovskite cell layer (3) is provided on a side of the first light-transmitting plate layer (1) facing the second light-transmitting plate layer (2), and a transparent second perovskite cell layer (4) is provided on a side of the second light-transmitting plate layer (2) facing the first light-transmitting plate layer (1); The second perovskite cell layer (4) is located on the side facing the interior of the vehicle, and the first perovskite cell layer (3) is located on the side facing the exterior of the vehicle; The first perovskite cell layer (3) is made of a wide-bandgap perovskite material to absorb short-wavelength light; The second perovskite cell layer (4) is made of a narrow bandgap perovskite material to absorb long wavelength light; A transparent adhesive layer (5) is filled between the first perovskite cell layer (3) and the second perovskite cell layer (4); The first perovskite battery layer (3) and the second perovskite battery layer (4) are both electrically connected to the vehicle-mounted power supply system.

2. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 1, characterized in that: The light wave absorption range of the first perovskite cell layer (3) is 300 to 800 nm, and the light wave absorption range of the second perovskite cell layer (4) is 800 to 1200 nm.

3. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 1, characterized in that: The first light-transmitting plate layer (1) is transparent tempered glass or low-iron glass.

4. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 3, characterized in that: The thickness of the first light-transmitting plate layer (1) ranges from 3 mm to 5 mm.

5. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 1, characterized in that: The second light-transmitting plate layer (2) is transparent tempered glass or composite glass.

6. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 5, characterized in that: The thickness of the second light-transmitting plate layer (2) ranges from 3 mm to 5 mm.

7. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 1, characterized in that: The adhesive layer (5) is made of polymer material or composite material.

8. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 1, characterized in that: A transparent first encapsulation layer (6) is provided on a side of the first light-transmitting plate layer (1) away from the second light-transmitting plate layer (2).

9. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 8, characterized in that: A transparent second encapsulation layer (7) is provided on a side of the second light-transmitting plate layer (2) away from the first light-transmitting plate layer (1).

10. The multi-component perovskite solar cell laminated glass system for a vehicle according to claim 9, characterized in that: The first encapsulation layer (6) and the second encapsulation layer (7) are both transparent waterproof films.

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