Crystalline silicon and perovskite cell combined photovoltaic module

Abstract

The utility model belongs to the field of photovoltaic technology, and provides a crystalline silicon and perovskite cell combined photovoltaic assembly, which comprises an aluminum frame, a crystalline silicon cell layer assembled inside the aluminum frame, a middle interlayer assembled above the crystalline silicon cell layer, a perovskite cell layer assembled above the middle interlayer, and a moisture-proof isolation layer assembled above the perovskite cell layer. A light-transmitting cover plate is assembled above the moisture-proof isolating layer; the pressing plate is assembled above the light-transmitting cover plate, and the pressing plate is connected with the aluminum frame through a bolt; the junction box is mounted at the bottom of the aluminum frame; according to the utility model, the perovskite cell layer and the crystal silicon cell layer are combined and work cooperatively, sunlight of different wave bands is fully utilized, the utilization rate of light energy is greatly improved, and the moisture-proof isolation layer is arranged above the perovskite cell layer, so that external moisture is effectively prevented from entering the perovskite cell layer, and the service life of the perovskite cell layer is prolonged. The problem of performance deterioration of the perovskite material caused by moisture is fundamentally solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic technical field, specifically a kind of photovoltaic module of combination of crystalline silicon and perovskite cell. BACKGROUND

[0002] Under the trend of global energy transformation today, photovoltaic power generation as a clean, sustainable energy acquisition method, its importance is increasingly prominent. Traditional crystalline silicon photovoltaic cell with its relatively mature technology and stable performance, in the past longer time occupies the leading position of photovoltaic market. With the continuous development of technology, the conversion efficiency of crystalline silicon cell gradually approaches its theoretical limit, further greatly improve efficiency faces many challenges, difficult to meet the growing energy demand and the expectation of high-efficiency power generation. At the same time, perovskite cell as a new photovoltaic technology emerges.

[0003] However, in actual application environment, perovskite material is extremely sensitive to humidity and temperature. In high humidity environment, it is easy to absorb water, and then induce hydrolysis reaction, leading to crystal structure is destroyed, battery performance is deteriorated sharply. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model provides a kind of photovoltaic module of combination of crystalline silicon and perovskite cell, to solve the problem of existing technology in high humidity environment, it is easy to absorb water, leading to crystal structure is destroyed.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] A kind of photovoltaic module of combination of crystalline silicon and perovskite cell, comprising:

[0007] Frame structure, the frame structure is enclosed plate structure with a certain height, the bottom of the frame structure is sealed;

[0008] Battery assembly, the battery assembly is installed in the inside of frame structure;

[0009] Light-transmitting sealing layer, the light-transmitting sealing layer is closed in the front of frame structure;

[0010] Moisture-proof isolation layer, the moisture-proof isolation layer is light-transmitting structure and is located between light-transmitting sealing layer and battery assembly, the moisture-proof isolation layer is used to prevent outside humidity from entering battery assembly.

[0011] As preferred, the battery assembly includes perovskite cell layer located above and crystalline silicon cell layer located below perovskite cell layer, and the middle partition layer with heat insulation capacity is arranged between the crystalline silicon cell layer and the perovskite cell layer.

[0012] Preferably, the bottom wall of the frame structure is a heat insulation layer, and the frame structure forms a bottom seal through the heat insulation layer.

[0013] Preferably, the frame structure is an aluminum frame.

[0014] Preferably, the light-transmitting sealing layer comprises a light-transmitting cover plate arranged above the moisture-proof isolation layer, and a pressing plate is arranged above the light-transmitting cover plate, and the pressing plate is connected with the aluminum frame through bolts.

[0015] Preferably, the bottom of the aluminum frame is provided with a junction box, and a wire is connected to the front end of the junction box.

[0016] Preferably, the perovskite battery layer comprises a transparent conductive electrode, a hole transport layer, a perovskite light-absorbing layer and an electron transport layer arranged in sequence, and the material of the perovskite light-absorbing layer is specially treated and has enhanced hydrolysis resistance and thermal decomposition resistance.

[0017] The crystalline silicon cell layer is a single-crystal silicon cell layer or a polycrystalline silicon cell layer.

[0018] Preferably, a light transmission film layer is arranged between the light-transmitting cover plate and the moisture-proof isolation layer.

[0019] Preferably, a buffer layer is arranged around the inner wall of the aluminum frame.

[0020] Preferably, a connecting piece is rotatably connected to one side of the bottom of the aluminum frame, a connecting hole corresponding to the connecting piece is arranged on the other side of the bottom of the aluminum frame, and a plurality of connecting seats are arranged on the bottom of the aluminum frame.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. The moisture-proof isolation layer arranged above the perovskite battery layer effectively prevents external moisture from entering the perovskite battery layer, fundamentally solves the performance deterioration problem of the perovskite material caused by moisture, ensures the stability of the battery layer, and at the same time, the intermediate layer has heat insulation performance, reduces the influence of high temperature on the perovskite battery layer, further maintains the stability of the battery performance, in addition, the buffer layer arranged around the inner wall of the aluminum frame can prevent the side edges of the perovskite battery layer and the crystalline silicon cell layer from being damaged by colliding with the inner wall of the aluminum frame, and the stability and reliability of the photovoltaic module are improved in all directions, the service life of the module is prolonged, and the maintenance cost and replacement frequency are reduced.

[0023] 2、The utility model discloses a photovoltaic module which combines perovskite cell layer and crystalline silicon cell layer, and after sunlight transmits through the light-transmitting cover plate, the sunlight is first absorbed by the perovskite cell layer, the electron-hole pairs generated by the perovskite cell layer are transmitted to the middle layer through the hole transport layer, and then transmitted to the crystalline silicon cell layer from the middle layer, the crystalline silicon cell layer absorbs the long-wave light transmitted through the perovskite cell layer, and the perovskite cell layer and the crystalline silicon cell layer work together, thereby fully utilizing sunlight of different wave bands, greatly improving the utilization rate of light energy, and significantly improving the photoelectric conversion efficiency compared with a traditional single crystalline silicon cell or perovskite cell assembly, so that solar energy can be more efficiently converted into electric energy, and a stronger guarantee is provided for energy supply. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of the utility model;

[0025] Figure 2 It is a bottom view of the utility model;

[0026] Figure 3 It is an expanded view of the utility model;

[0027] Figure 4 It is an expanded view of the perovskite cell layer of the utility model.

[0028] In the drawings:

[0029] 1, aluminum frame; 2, pressing plate; 3, junction box; 4, wire; 5, light-transmitting cover plate; 6, connecting piece; 7, connecting hole; 8, connecting seat; 9, perovskite cell layer; 901, transparent conductive electrode; 902, hole transport layer; 903, perovskite light-absorbing layer; 904, electron transport layer; 10, buffer layer; 11, crystalline silicon cell layer; 12, anti-reflection film layer; 13, moisture-proof isolation layer; 14, middle layer; 15, heat dissipation layer. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantages of the present technical solution clearer and more intelligible, the present technical solution will be further described in detail below in conjunction with specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present technical solution.

[0031] As shown in Figure 1 , attached Figure 2 , attached Figure 3 and attached Figure 4 :

[0032] Embodiment one: the utility model provides a kind of photovoltaic module of crystalline silicon and perovskite cell combination, comprising:

[0033] The aluminum frame 1 is internally equipped with a crystalline silicon cell layer 11, the crystalline silicon cell layer 11 is equipped with a middle layer 14 above, the middle layer 14 is equipped with a perovskite cell layer 9 above, the perovskite cell layer 9 is equipped with a moisture-proof isolation layer 13 above, and the moisture-proof isolation layer 13 is equipped with a light-transmitting cover plate 5 above;

[0034] The pressing plate 2 is equipped above the light-transmitting cover plate 5, and the pressing plate 2 and the aluminum frame 1 are connected by bolts;

[0035] The junction box 3 is installed at the bottom of the aluminum frame 1, and the junction box 3 is connected with the wire 4 at the front end.

[0036] As can be seen from the above, after the sunlight transmits through the light-transmitting cover plate 5, it is first absorbed by the perovskite cell layer 9 to generate electron-hole pairs, and the charges are transmitted in the perovskite cell layer 9, and the holes are transmitted to the middle layer 14 through the hole transport layer 902, and the middle layer 14 transmits the holes to the crystalline silicon cell layer 11 while optimizing the light;

[0037] The crystalline silicon cell layer 11 absorbs long-wave light that transmits through the perovskite cell layer 9, and the generated electrons are combined with the holes transmitted from the perovskite cell layer 9 through the external circuit to form a current. In this process, the moisture-proof isolation layer 13 effectively prevents moisture from entering the perovskite cell layer 9, and the heat insulation performance of the middle layer 14 reduces the influence of high temperature on the perovskite cell layer 9, thereby ensuring that the photovoltaic module can work stably and efficiently. The device is connected with external equipment through the junction box 3 and the wire 4 to realize power transmission, and the light-transmitting cover plate 5 is pressed and limited after the bolts pass through the pressing plate 2 and the aluminum frame 1, thereby improving the stability and reliability of the photovoltaic module and prolonging the service life of the module.

[0038] As shown in the accompanying Figure 1 and the accompanying Figure 3 , as shown in the accompanying

[0039] Specifically, regarding the above-mentioned light-transmitting cover plate 5, the light-transmitting cover plate 5 is made of a material with high light transmittance and strong weather resistance.

[0040] As can be seen from the above, the light-transmitting cover plate 5 can be made of super-white tempered glass, which has high light transmittance and can effectively ensure the transmission of sunlight, while having good mechanical strength and weather resistance, which can protect the battery structure below from being eroded by external environmental factors such as dust, rain, ultraviolet rays, etc.

[0041] As shown in the accompanying Figure 3 and the accompanying Figure 4 , as shown in the accompanying

[0042] Specifically, regarding the perovskite battery layer 9 described above, the perovskite battery layer 9 comprises a transparent conductive electrode 901, a hole transport layer 902, a perovskite light-absorbing layer 903 and an electron transport layer 904 arranged in sequence, and the material of the perovskite light-absorbing layer 903 is specially treated to have enhanced anti-hydrolysis and anti-thermal decomposition performance.

[0043] As can be seen from the above, the transparent conductive electrode 901 is used to collect and transport charges, and can be made of materials such as indium tin oxide (ITO); the hole transport layer 902 is responsible for transporting the holes generated by the perovskite light-absorbing layer 903 to the intermediate connecting layer; the perovskite light-absorbing layer 903 is the core part of absorbing sunlight and generating electron-hole pairs, and its material is specially treated, for example, by introducing an organic-inorganic hybrid additive into the perovskite material or using a surface modification technique, so as to have enhanced anti-hydrolysis and anti-thermal decomposition performance; the electron transport layer 904 transports the generated electrons to the external circuit.

[0044] As shown in the accompanying drawings: Figure 3

[0045] Specifically, regarding the crystalline silicon battery layer 11 described above, the crystalline silicon battery layer 11 is a single-crystal silicon battery layer or a polycrystalline silicon battery layer.

[0046] As can be seen from the above, the crystalline silicon battery layer 11 can absorb long-wave light that has passed through the perovskite battery layer 9, further improving the utilization rate of light energy.

[0047] As shown in the accompanying drawings: Figure 3

[0048] Specifically, regarding the light-transmitting cover plate 5 described above, a antireflection film layer 12 is arranged between the light-transmitting cover plate 5 and the moisture-proof isolation layer 13.

[0049] Among them, the antireflection film layer 12 can adopt a multilayer dielectric film structure.

[0050] As can be seen from the above, by optimizing the refractive index and thickness of the film layer, the reflection of light on the surface of the light-transmitting cover plate 5 can be reduced, the transmittance of light can be improved, and thus the amount of sunlight absorbed by the photovoltaic module can be increased, and the power generation efficiency of the module can be improved.

[0051] As shown in the accompanying drawings: Figure 3

[0052] Specifically, regarding the aluminum frame 1 described above, a buffer layer 10 is arranged around the inner wall of the aluminum frame 1, and a heat dissipation layer 15 is arranged inside the aluminum frame 1 below the crystalline silicon battery layer 11.

[0053] Among them, the heat dissipation layer 15 can be made of materials such as heat-conducting silicone rubber sheets or graphite heat dissipation sheets.

[0054] ​​​From the above, the heat generated during the operation of the assembly can be dissipated in time through the heat dissipation layer 15, avoiding the accumulation of heat causing the temperature of the perovskite battery layer 9 to be too high, affecting the battery performance, and the inner wall of the aluminum frame 1 can be wrapped and protected through the buffer layer 10, preventing the side edges of the perovskite battery layer 9 and the crystalline silicon battery layer 11 from colliding with the inner wall of the aluminum frame 1 and being damaged, improving the stability and reliability of the photovoltaic module, and prolonging the service life of the module.

[0055] As shown in Figs. 1 to 3, Figure 1 , Figs. 4 to 6, Figure 2 and Figs. 7 to 9, Figure 3 :

[0056] In this embodiment, the bottom of the aluminum frame 1 is rotatably connected with a connecting piece 6, and the other side of the bottom of the aluminum frame 1 is provided with a connecting hole 7 corresponding to the position of the connecting piece 6, and a plurality of connecting seats 8 are arranged on the bottom of the aluminum frame 1.

[0057] The connecting piece 6 is rotatably connected to the bottom of the aluminum frame 1, and a through hole is formed in the end of the aluminum frame 1 extending out of the connecting piece 6.

[0058] As can be seen from the above, when two adjacent photovoltaic modules are assembled together, the bolts are used to pass through the through hole of the connecting piece 6 and connect with the connecting hole 7 on the adjacent photovoltaic module, so as to realize the assembly of the photovoltaic module, and after the connecting seat 8 is connected with the external structure, the aluminum frame 1 can be connected with the external structure, so that the aluminum frame 1 is more stable.

[0059] In the description of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0060] In the present application, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0062] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0063] The above is only the preferred embodiment of the present application, and those skilled in the art can make many changes in the specific implementation and application range according to the technical content of the present application, as long as these changes do not deviate from the concept of the present application, and belong to the protection scope of the present patent.

Claims

1. A photovoltaic module combining crystalline silicon and perovskite cells, characterized in that: The application relates to a frame structure, a battery assembly, a light-transmitting sealing layer and a moisture-proof isolation layer. The frame structure is a closed plate structure with a certain height, and the bottom of the frame structure is sealed. The battery assembly is installed in the interior of the frame structure. The light-transmitting sealing layer is sealed on the front surface of the frame structure. The moisture-proof isolation layer is a light-transmitting structure and is located between the light-transmitting sealing layer and the battery assembly, and is used for preventing external moisture from entering the battery assembly.

2. The crystalline silicon and perovskite cell combined photovoltaic module according to claim 1, characterized in that: The battery assembly comprises a perovskite battery layer located upwards and a crystalline silicon battery layer located below the perovskite battery layer, and a partition layer with heat insulation capacity is arranged between the crystalline silicon battery layer and the perovskite battery layer.

3. The crystalline silicon and perovskite cell combined photovoltaic module according to claim 1, characterized in that: The bottom wall of the frame structure is a heat insulation layer, and the frame structure is sealed at the bottom through the heat insulation layer.

4. The crystalline silicon and perovskite cell combined photovoltaic module of claim 1, wherein: The frame structure is an aluminum frame.

5. The crystalline silicon and perovskite cell combined photovoltaic module of claim 1, wherein: The light-transmitting sealing layer comprises a light-transmitting cover plate assembled above the moisture-proof isolation layer, and a pressing plate is assembled above the light-transmitting cover plate, and the pressing plate is connected with the frame structure through bolts.

6. The crystalline silicon and perovskite cell combined photovoltaic module of claim 1, wherein: The bottom of the frame structure is provided with a junction box, and a wire is connected to the front end of the junction box.

7. The crystalline silicon and perovskite cell combined photovoltaic module of claim 2, wherein: The perovskite battery layer comprises a transparent conductive electrode, a hole transport layer, a perovskite light-absorbing layer and an electron transport layer which are sequentially arranged, and the material of the perovskite light-absorbing layer has enhanced hydrolysis resistance and thermal decomposition resistance; The crystalline silicon battery layer is a single-crystal silicon battery layer or a polycrystalline silicon battery layer.

8. The crystalline silicon and perovskite cell combined photovoltaic module of claim 5, wherein: A light-transmitting film layer is arranged between the light-transmitting cover plate and the moisture-proof isolation layer.

9. The crystalline silicon and perovskite cell combined photovoltaic module of claim 1, wherein: A buffer layer is arranged around the inner wall of the frame structure.

10. The crystalline silicon and perovskite cell combined photovoltaic module of claim 1, wherein: One side of the bottom of the frame structure is rotationally connected with a connecting piece, the other side of the bottom of the frame structure is provided with a connecting hole corresponding to the position of the connecting piece in a one-to-one manner, and a plurality of connecting seats are installed on the bottom of the frame structure.

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