CN220585240U - Photovoltaic glass with double-sided power generation function - Google Patents
Photovoltaic glass with double-sided power generation function Download PDFInfo
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- CN220585240U CN220585240U CN202321827680.5U CN202321827680U CN220585240U CN 220585240 U CN220585240 U CN 220585240U CN 202321827680 U CN202321827680 U CN 202321827680U CN 220585240 U CN220585240 U CN 220585240U
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- solar cell
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- transparent glass
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- 239000011521 glass Substances 0.000 title claims abstract description 65
- 238000010248 power generation Methods 0.000 title abstract description 9
- 239000002313 adhesive film Substances 0.000 claims abstract description 21
- 238000004806 packaging method and process Methods 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000010408 film Substances 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000012827 research and development Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a double-sided photovoltaic glass capable of generating electricity, which comprises a first transparent glass, a first layer of solar cell, a packaging adhesive film, a second layer of solar cell and a second transparent glass which are sequentially connected from top to bottom, and also comprises two cell electrode outgoing lines, wherein the first layer of solar cell is a transparent solar cell, the edge of the first transparent glass is connected with the edge of the second transparent glass in a sealing way so that a cavity is formed between the first transparent glass and the second transparent glass, and the first layer of solar cell, the packaging adhesive film and the second layer of solar cell are positioned in the cavity, and each cell electrode outgoing line is electrically connected with the first layer of solar cell and the second layer of solar cell. According to the utility model, the function of the laminated photovoltaic cell is achieved by a packaging method, and the first layer solar cell and the second layer solar cell can directly receive solar illumination, so that double-sided power generation is realized.
Description
Technical Field
The utility model relates to the field of photovoltaic glass, in particular to photovoltaic glass with double-sided power generation.
Background
The traditional double-sided power generation photovoltaic panel in the market at present means that the front side of the photovoltaic panel can receive illumination to generate power, the back side of the battery can also receive illumination to generate power, but the battery is light-proof, and the back side of the photovoltaic panel mainly depends on scattered light and ground reflection to generate power. In the practical application scene, sunlight can only irradiate one side, so that the photovoltaic panel cannot achieve direct illumination on both sides and generate power, and back power generation only assists in gain.
The perovskite-crystal silicon cell stacked cell or the perovskite-perovskite stacked cell is adopted in the double-sided power generation photovoltaic panel of the novel technology, and is generally a perovskite cell stacked on a crystal silicon heterojunction cell, namely, the perovskite cell is manufactured on the surface of the crystal silicon heterojunction cell, and the existing perovskite-crystal silicon cell stacked cell is in laboratory research and development, so that the technical difficulty is high; the perovskite-perovskite stacked battery is generally formed by stacking a perovskite battery on a bottom perovskite battery, is in laboratory research and development, has large technical difficulty, and has small area of the laboratory research and development battery, which is about 0.01-1cm < 2 >.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a double-sided power-generating photovoltaic glass, which mainly solves the problem that the existing photovoltaic glass can not truly realize double-sided power generation.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides a two-sided photovoltaic glass that can generate electricity, including from top to bottom first transparent glass that connects gradually, first layer solar cell, encapsulation glued membrane, second floor solar cell, second transparent glass, still include two battery electrode lead-out wires, first layer solar cell is transparent solar cell, sealing connection makes between first transparent glass and the second transparent glass's the edge form the cavity between first transparent glass and the second transparent glass, first layer solar cell, encapsulation glued membrane and second floor solar cell are located this cavity, every battery electrode lead-out wire forms the electricity with first layer solar cell and second floor solar cell and is connected.
Further, the edges of the first transparent glass and the edges of the second transparent glass are connected through alloy sealing, and one ends of the two battery electrode outgoing lines protrude out of the alloy.
Further, the first layer solar cell is a transparent perovskite solar cell, and the second layer solar cell is a transparent perovskite solar cell, or a thin film solar cell, or a crystalline silicon solar cell.
Further, the first layer of solar cell comprises a plurality of cell pieces, and each cell piece adopts a parallel or serial structure or a serial-parallel combined serial-parallel structure; the second layer solar cell comprises a plurality of cell pieces, and each cell piece adopts a parallel or serial structure or a serial-parallel combined serial-parallel structure.
Further, the first layer solar cell and the second layer solar cell have the same or different band gaps.
Further, the band gap range of the first layer solar cell is 0.5 eV-3 eV, and the band gap range of the second layer solar cell is 0.5 eV-3 eV.
Further, the first transparent glass and the second transparent glass are ultrawhite glass.
Further, the packaging adhesive film is POE adhesive film, PVB adhesive film or EVA adhesive film.
Further, the packaging adhesive film is a light conversion film or a UV cut-off film.
The utility model has the following beneficial effects:
the component formed by connecting the first transparent glass and the first layer of solar cells and the component formed by connecting the second transparent glass and the second layer of solar cells are packaged to form the function of the laminated photovoltaic cell, so that the technical difficulty is low and the implementation is easy.
Compared with the prior art, the back of the double-sided photovoltaic glass mainly generates electricity by scattered light and ground reflected light, and has poor light energy absorption, and the first layer solar cell of the double-sided photovoltaic glass is a transparent cell, so that the first layer solar cell and the second layer solar cell can be directly irradiated by sunlight, and the double-sided power generation function is truly realized. Preferably, the first layer solar cell and the second layer solar cell are arranged in a staggered manner, for example, the first layer solar cell is a wide band gap which absorbs as much as possible the sunlight in the ultraviolet light to visible light spectrum range, the second layer solar cell is a wide band gap which absorbs as much as possible the infrared light, and the sunlight in the full spectrum range is absorbed as much as possible, so that the illumination utilization rate is good.
Drawings
Fig. 1 is a schematic structural view of a photovoltaic glass capable of generating electricity on both sides according to an embodiment of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1, the present embodiment discloses a photovoltaic glass capable of generating electricity on both sides, which comprises a first transparent glass 1, a first layer solar cell 2, a packaging adhesive film 6, a second layer solar cell 3 and a second transparent glass 4 which are sequentially connected from top to bottom, and further comprises two cell electrode outgoing lines 5, wherein the first layer solar cell 2 is a transparent solar cell, the edges of the first transparent glass 1 and the edges of the second transparent glass 4 are in sealing connection so as to form a cavity between the first transparent glass 1 and the second transparent glass 4, the first layer solar cell 2, the packaging adhesive film and the second layer solar cell 3 are located in the cavity, and each cell electrode outgoing line 5 is electrically connected with the first layer solar cell 2 and the second layer solar cell 3.
Since the first transparent glass 1, the second transparent glass 4 and the first layer solar cell 2 are transparent, when the first layer solar cell 2 is used as the front surface for receiving sunlight, the first layer solar cell 2 and the second layer solar cell 3 can receive direct sunlight, the band gaps of the first layer solar cell 2 and the second layer solar cell 3 can be different, for example, the first layer solar cell 2 belongs to a wide band gap, and can absorb sunlight in the range of ultraviolet light to visible light spectrum as far as possible; the second layer of solar cells 3 belongs to a wide band gap and absorbs infrared light as much as possible; the first layer 2 and the second layer 3 solar cells are arranged with different band gaps for the purpose of absorbing as much sunlight as possible in the full spectral range. The first layer solar cell 2 and the second layer solar cell 3 can generate electricity, so that the photovoltaic glass double-sided electricity generation function is realized. The band gap of the first layer solar cell 2 and the second layer solar cell 3 may be the same.
The band gap range of the first layer solar cell is 0.5 eV-3 eV, and the band gap range of the second layer solar cell is 0.5 eV-3 eV. The first layer solar cell 2 preferably has a band gap of 1.3eV or more and 1.6eV or less as the surface that receives sunlight on the front surface. The second layer solar cell 3 preferably has a band gap of 0.9eV or more and 1.3eV or less as a second surface that receives sunlight or as a light receiving surface that reflects light from the back surface.
The first layer solar cell 2 may be a transparent perovskite solar cell, and the second layer solar cell 3 may be a transparent perovskite solar cell, or a thin film solar cell, or a crystalline silicon solar cell. In this embodiment, preferably, the first layer solar cell 2 and the second layer solar cell 3 are both transparent perovskite solar cells. In this embodiment, the first layer solar cell 2 is a single junction perovskite cell, or a double junction perovskite stack cell, or a multi-junction perovskite stack cell. Likewise, the second layer solar cell 3 is a single junction perovskite cell, or a double junction perovskite stack cell, or a multi-junction perovskite stack cell. The first layer solar cell 2 and the second layer solar cell 3 may be made of other transparent materials, and the materials of the first layer solar cell and the second layer solar cell may be the same or different.
The edges of the first transparent glass 1 and the edges of the second transparent glass 4 are connected in a sealing way through an alloy material 7 or a composite material, and one ends of the two battery electrode outgoing wires 5 protrude out of the alloy 7.
The first layer solar cell 2 comprises a plurality of cells, and each cell adopts a parallel or serial structure or a serial-parallel combined serial-parallel structure; the second layer solar cell 3 comprises a plurality of cells, and each cell adopts a parallel or serial structure or a serial-parallel combined serial-parallel structure.
The first transparent glass 1 and the second transparent glass 4 are super white glass, and have good light transmittance.
The packaging adhesive film 6 is a POE adhesive film, a PVB adhesive film or an EVA adhesive film. EVA adhesive films such as light-converting films or UV-blocking films, in particular light-converting films.
The embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and therefore all other embodiments obtained by those skilled in the art without making creative efforts are intended to fall within the protection scope of the present utility model.
Claims (9)
1. The utility model provides a two-sided photovoltaic glass that can generate electricity which characterized in that: the solar cell comprises first transparent glass, a first layer of solar cell, a packaging adhesive film, a second layer of solar cell and second transparent glass which are sequentially connected from top to bottom, and further comprises two cell electrode outgoing lines, wherein the first layer of solar cell is a transparent solar cell, the edge of the first transparent glass is in sealing connection with the edge of the second transparent glass so that a cavity is formed between the first transparent glass and the second transparent glass, the first layer of solar cell, the packaging adhesive film and the second layer of solar cell are located in the cavity, and each cell electrode outgoing line is electrically connected with the first layer of solar cell and the second layer of solar cell.
2. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the edges of the first transparent glass and the edges of the second transparent glass are connected through alloy sealing, and one ends of the outgoing lines of the two battery electrodes protrude out of the alloy.
3. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the first layer solar cell is a transparent perovskite solar cell, and the second layer solar cell is a transparent perovskite solar cell, a thin film solar cell or a crystalline silicon solar cell.
4. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the first layer solar cell comprises a plurality of cell pieces, and each cell piece adopts a parallel or serial structure or a serial-parallel combined serial-parallel structure; the second layer solar cell comprises a plurality of cell pieces, and each cell piece adopts a parallel or serial structure or a serial-parallel combined serial-parallel structure.
5. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the first layer solar cell and the second layer solar cell have the same or different band gaps.
6. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the band gap range of the first layer solar cell is 0.5 eV-3 eV, and the band gap range of the second layer solar cell is 0.5 eV-3 eV.
7. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the first transparent glass and the second transparent glass are ultrawhite glass.
8. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the packaging adhesive film is POE adhesive film, PVB adhesive film or EVA adhesive film.
9. The double-sided, electrically-generatable photovoltaic glass of claim 1, wherein: the packaging adhesive film is a light conversion film or a UV cut-off film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321827680.5U CN220585240U (en) | 2023-07-12 | 2023-07-12 | Photovoltaic glass with double-sided power generation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321827680.5U CN220585240U (en) | 2023-07-12 | 2023-07-12 | Photovoltaic glass with double-sided power generation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220585240U true CN220585240U (en) | 2024-03-12 |
Family
ID=90111807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321827680.5U Active CN220585240U (en) | 2023-07-12 | 2023-07-12 | Photovoltaic glass with double-sided power generation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220585240U (en) |
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2023
- 2023-07-12 CN CN202321827680.5U patent/CN220585240U/en active Active
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