Photovoltaic device integrated with photocatalytic component

Abstract

The utility model discloses a photovoltaic device integrated with a photocatalysis assembly, and the photovoltaic device comprises a transparent photovoltaic assembly which is formed in a manner that light can penetrate through the transparent photovoltaic assembly, and the transparent photovoltaic assembly is provided with a light facing side facing one side of a light source and a backlight side deviating from one side of the light source in the light transmission direction; and the photocatalysis assembly is laminated with the transparent photovoltaic assembly and is arranged on the backlight side of the transparent photovoltaic assembly. According to the technical scheme, the occupied area can be reduced, and light energy is efficiently utilized.

Description

Technical Field

[0001] The present application relates to the technical field of light energy utilization, and in particular to a photovoltaic device integrated with a photocatalytic component. Background Art

[0002] Photovoltaic modules convert solar energy into electrical energy and send it to batteries for storage or to drive loads. Currently, how to improve the utilization rate of light energy is a current research topic. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides a photovoltaic device integrated with a photocatalytic component, which can save floor space and improve light energy utilization.

[0004] This application is implemented through the following technical solutions.

[0005] The present application provides a photovoltaic device integrated with a photocatalytic component, comprising: a transparent photovoltaic component, wherein the transparent photovoltaic component is configured to allow light to pass therethrough, and along the light transmission direction, the transparent photovoltaic component has a light-facing side facing the light source and a light-repelling side facing away from the light source; a photocatalytic component, which is stacked with the transparent photovoltaic component and is disposed on the light-repelling side of the transparent photovoltaic component.

[0006] The photocatalytic component and the transparent photovoltaic component are stacked and arranged, and the transparent photovoltaic component is arranged to allow light to pass through, so that the light source irradiates the transparent photovoltaic component to enable the transparent photovoltaic component to perform the photovoltaic power generation function, and the light that passes through the transparent photovoltaic component irradiates the photocatalytic component to enable the photocatalytic component to perform the photocatalytic function. Therefore, the photovoltaic device can not only perform the photovoltaic power generation function but also the photocatalytic function by integrating the photocatalytic component, thereby efficiently utilizing light energy and reducing the footprint.

[0007] In some embodiments, the transparent photovoltaic component includes a transparent photovoltaic layer capable of absorbing light in a first wavelength range and transmitting light in a second wavelength range, wherein the first wavelength range and the second wavelength range at least partially do not overlap.

[0008] Since there is a non-overlapping part in the wavelength range of light when the light source shines on the photocatalytic component to produce a catalytic reaction and the wavelength range of light when the light source shines on the transparent photovoltaic component to generate electricity, the spectrum utilization rate can be improved, thereby further making full use of solar energy and improving the utilization rate of light energy.

[0009] In some embodiments, the transparent photovoltaic layer includes any one of the following: a perovskite layer, a cadmium telluride thin film layer, a copper indium gallium selenide thin film layer, and an organic solar layer.

[0010] Transparent photovoltaic layers made of suitable materials can achieve more efficient photoelectric conversion efficiency.

[0011] In some embodiments, the transparent photovoltaic assembly further includes a first light-transmitting plate and a second light-transmitting plate stacked along the light transmission direction, and the transparent photovoltaic layer is sandwiched between the first light-transmitting plate and the second light-transmitting plate.

[0012] The transparent photovoltaic layer is sandwiched by the first light-transmitting plate and the second light-transmitting plate, which provides good protection for the transparent photovoltaic layer without affecting light transmission.

[0013] In some embodiments, the first light-transmitting plate includes a transparent glass plate; and / or the second light-transmitting plate includes a transparent glass plate.

[0014] The glass plate has good light transmittance, reduces light reflection, increases light energy transmittance, and thus improves the utilization rate of light energy by the photovoltaic device.

[0015] In some embodiments, the transparent photovoltaic module further includes a positive lead terminal and a negative lead terminal connected to the transparent photovoltaic layer.

[0016] The positive lead-out terminal and the negative lead-out terminal are convenient for connecting energy storage batteries or loads, so as to store and utilize the converted electric energy in a timely manner.

[0017] In some embodiments, the photocatalytic component includes a photocatalytic hydrogen production component.

[0018] The photocatalytic hydrogen production component can be combined with a photovoltaic component. A portion of the light is used for the photovoltaic component to generate electricity, and at least another portion of the light is used for photocatalytic hydrogen production. This can achieve power generation and hydrogen production at the same time, efficiently utilize light energy, and reduce the footprint.

[0019] In some embodiments, the photocatalytic component includes a hydrogen production base plate, which is located on the backlight side of the transparent photovoltaic component. The hydrogen production base plate includes a hydrogen production cavity and a liquid injection port, a liquid discharge port and a gas collection port connected to the hydrogen production cavity. The hydrogen production cavity is used to accommodate hydrogen production liquid and / or photocatalyst.

[0020] The hydrogen production liquid in the hydrogen production cavity produces hydrogen through the catalytic action of the photocatalyst and light, and can also cool the transparent photovoltaic layer.

[0021] In some embodiments, the hydrogen production cavity is provided with a light-transmitting opening, the photocatalyst is located at a position in the hydrogen production cavity corresponding to the light-transmitting opening, and the transparent photovoltaic component is disposed on the hydrogen production bottom plate and closes the light-transmitting opening.

[0022] The light-transmitting opening of the hydrogen production cavity is sealed by a transparent photovoltaic module, which has a high degree of integration, makes the overall structure of the photovoltaic device more compact, and reduces space occupancy.

[0023] In some embodiments, a third light-transmitting plate is further provided between the transparent photovoltaic assembly and the hydrogen-producing bottom plate, and the third light-transmitting plate is disposed on the hydrogen-producing bottom plate and closes the light-transmitting opening.

[0024] The light-transmitting port of the hydrogen production cavity is closed by the third light-transmitting plate, so that the maintenance of the transparent photovoltaic component and the photocatalytic component is convenient.

[0025] In some embodiments, the transparent photovoltaic assembly is bonded to the third light-transmitting plate by a light-transmitting adhesive.

[0026] Thus, the transparent photovoltaic assembly and the third light-transmitting plate are more firmly fixed together without reducing light transmittance.

[0027] In some embodiments, the photocatalyst is attached to the surface of the hydrogen production cavity; and / or, the photocatalyst is attached to the surface of the backlight side of the transparent photovoltaic component.

[0028] This is beneficial to the uniform distribution of photocatalysts, improving the efficiency of photocatalytic reactions and further improving the utilization rate of light energy.

[0029] In some embodiments, the photocatalyst is attached to a surface of the third light-transmitting plate facing the hydrogen production cavity.

[0030] This is beneficial for evenly distributing the photocatalyst, improving the efficiency of the photocatalytic reaction, and further improving the utilization rate of light energy; at the same time, by replacing a new third light-transmitting plate, the photocatalyst can be easily updated.

[0031] In some embodiments, the photocatalytic component further includes a circulation pump connected to the injection port and the discharge port, and the circulation pump is electrically connected to the transparent photovoltaic component; or the circulation pump is electrically connected to an external power supply.

[0032] The circulation pump is powered by transparent photovoltaic modules, saving electricity costs.

[0033] In some embodiments, the transparent photovoltaic component and the photocatalytic component are integrated into a stack by being surrounded by a frame.

[0034] The transparent photovoltaic components and the photocatalytic components are fixed by the frame, which is convenient for disassembly and assembly and is conducive to maintenance and replacement.

[0035] In some embodiments, a bracket is further included, the bracket supporting the stack, the bracket is configured as a fixed bracket supporting the stack in a fixed posture, or the bracket is configured as a tracking bracket supporting the stack to move following the light source.

[0036] Support the stacked components with brackets to improve stability.

[0037] In some embodiments, the stacked transparent photovoltaic components and the photocatalytic components form a stacked component, and more than two of the stacked components are arranged so that the light-facing surfaces of the light-facing sides of the transparent photovoltaic components constitute a large light-facing surface, and the transparent photovoltaic components in two adjacent stacked components are connected in series or in parallel through their respective transparent photovoltaic layers, and the photocatalytic components in two adjacent stacked components are connected in series or in parallel through their respective hydrogen production cavities.

[0038] Utility model effect:

[0039] Through the embodiments of the present application, the floor space can be reduced and light energy can be efficiently utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0041] Figure 1 A schematic diagram of the structure of a photovoltaic device integrated with a photocatalytic component provided for some embodiments of the present application;

[0042] Figure 2 An exploded schematic diagram of a photovoltaic device with integrated photocatalytic components provided for some embodiments of the present application;

[0043] Figure 3 A schematic cross-sectional view of a photovoltaic device integrated with a photocatalytic component provided for some embodiments of the present application;

[0044] Figure 4 A schematic cross-sectional view of a photovoltaic device integrated with a photocatalytic component provided for other embodiments of the present application;

[0045] Figure 5 A schematic diagram of the structure of the flow channel on the hydrogen production base plate provided in some embodiments of the present application;

[0046] Figure 6 A schematic diagram of multiple stacked components connected in series is provided for some embodiments of the present application.

[0047] Description of reference numerals:

[0048] 100 stacked components; S-ray; X-ray transmission direction;

[0049] 10 transparent photovoltaic module; 11 transparent photovoltaic layer; 12 first light-transmitting plate; 13 second light-transmitting plate; 111 positive electrode lead wire; negative electrode lead wire 112;

[0050] 20 photocatalytic component; 21 photocatalyst; 22 hydrogen production bottom plate; 221 liquid injection port; 222 liquid discharge port; 223 gas collection port; 24 photocatalyst mesh plate; 22a hydrogen production cavity; 22b flow channel; 23 third light-transmitting plate; 101 gas collection main pipeline;

[0051] 30 frames. DETAILED DESCRIPTION

[0052] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0054] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0055] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0056] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0057] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0058] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0059] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0060] Below, this application is described in detail.

[0061] At present, photovoltaic power generation devices convert solar energy into electrical energy and send it to energy storage devices for storage or to drive loads. Photocatalytic hydrogen production devices decompose water molecules into hydrogen and oxygen through photocatalytic reactions. Both photovoltaic modules and photocatalytic modules require the use of light energy. How to fully utilize solar energy is one of the research and development directions of the industry.

[0062] The photovoltaic power generation device and the photocatalytic hydrogen production device are independent systems. When they are set up separately, they have the disadvantages of occupying a large area and insufficient utilization of solar energy. Therefore, the present application hopes to provide a photovoltaic device that saves floor space and can fully utilize light energy. According to research, by integrating the photocatalytic component and the photovoltaic component together, complementary utilization of the solar energy spectrum can be achieved, so that full utilization of solar energy can be achieved while suppressing the floor space.

[0063] In addition, photovoltaic modules generate heat during operation, resulting in low light energy conversion efficiency. By integrating the photocatalytic hydrogen production module and the photovoltaic module together, the relatively low temperature liquid in the photocatalytic hydrogen production device can be used to remove the heat generated by the photovoltaic module during operation.

[0064] Based on the above technical concept, the present application provides a photovoltaic device integrated with a photocatalytic component, including: a transparent photovoltaic component, the transparent photovoltaic component is configured to allow light to pass through, and along the light transmission direction, the transparent photovoltaic component has a light-facing side facing the light source and a backlight side facing away from the light source; a photocatalytic component, which is stacked with the transparent photovoltaic component and is arranged on the backlight side of the transparent photovoltaic component.

[0065] The photocatalytic component and the transparent photovoltaic component are stacked and arranged, and the transparent photovoltaic component is arranged to transmit light, so that the light source irradiates the transparent photovoltaic component to enable the transparent photovoltaic component to perform a photovoltaic function, and the light that passes through the transparent photovoltaic component irradiates the photocatalytic component to enable the photocatalytic component to perform a photocatalytic function. Therefore, the photovoltaic device can not only perform a photovoltaic function but also a photocatalytic function by integrating the photocatalytic component, thereby efficiently utilizing light energy and reducing the footprint.

[0066] Solar energy utilization devices can be installed in areas with abundant sunlight, such as plateaus, islands, pastoral areas, industrial factories, commercial buildings, municipal buildings, agricultural buildings, etc., and can be built together with other building locations, such as carports, roofs, awnings, etc.

[0067] Photovoltaic devices integrated with photocatalytic components can be used in the transportation field, such as navigation lights, traffic lights, traffic warning signs, unmanned road power supply, etc. Photovoltaic devices integrated with photocatalytic components can also be used in the communication or telecommunication field, such as solar unmanned microwave relay stations, optical cable maintenance stations, broadcasting, communications, paging power supply systems, rural carrier telephone photovoltaic systems, small communication machines, etc. Photovoltaic devices integrated with photocatalytic components can also be used in the petroleum, ocean, and meteorological fields, for cathodic protection of oil pipelines and reservoir gates, marine detection equipment, meteorological and hydrological observation equipment, etc.

[0068] Photovoltaic devices integrated with photocatalytic components can be applied to the field of new energy, such as solar electric vehicles, electric bicycles, solar yachts, solar charging equipment, solar car air conditioners, hydrogen energy vehicles, etc., as well as the application of high-tech technologies such as satellites, spacecraft, and space solar power stations.

[0069] In addition, photovoltaic devices integrated with photocatalytic components can also be used in public areas, such as photovoltaic car charging stations and awnings, photovoltaic public transportation shelters, photovoltaic public seats, photovoltaic landscape devices, photovoltaic street lights, photovoltaic water purification equipment, photovoltaic billboards, etc.

[0070] Below, refer to Figures 1 to 6 Some embodiments of the present application are described in detail.

[0071] The embodiment of the present application provides a photovoltaic device integrated with a photocatalytic component, including: a transparent photovoltaic component 10 for photovoltaic power generation, the transparent photovoltaic component 10 is configured to allow light to pass through, and along the light transmission direction, the transparent photovoltaic component 10 has a light-facing side facing the light source and a backlight side facing away from the light source; a photocatalytic component 20 is stacked with the transparent photovoltaic component 10 and is arranged on the backlight side of the transparent photovoltaic component 10. During the operation of the photovoltaic device, the photocatalytic component 20 includes a photocatalyst, and the photocatalyst can play a catalytic role under the irradiation of light that has passed through the transparent photovoltaic component 10.

[0072] The light source may be sunlight, for example. Of course, the light source may also be an illumination device, and the light emitted by the illumination device illuminates the transparent photovoltaic component 10 and the photocatalytic component 20 . Figure 3 , Figure 4 In the figure, the light S is represented by three parallel arrows.

[0073] The transparent photovoltaic component 10 can convert light energy into electrical energy and allow light to pass through, and the light that passes through the transparent photovoltaic component 10 undergoes a photocatalytic reaction with the photocatalyst. As an example, a portion of the light irradiated on the transparent photovoltaic component 10 can be absorbed by the transparent photovoltaic component 10, and another portion of the light that is not absorbed by the transparent photovoltaic component 10 can pass through the transparent photovoltaic component 10 in whole or in part, and the other portion of the light that is not absorbed by the transparent photovoltaic component 10 and passes through the transparent photovoltaic component 10 can be absorbed by the photocatalyst in whole or in part and undergo a catalytic reaction.

[0074] As a specific example, the photocatalytic component 20 and the transparent photovoltaic component 10 may be stacked in such a way that the upper layer is the transparent photovoltaic component 10 and the lower layer is the catalytic component 20, wherein the upper layer is the position that first contacts the incident light.

[0075] The photocatalytic component 20 and the transparent photovoltaic component 10 are stacked and arranged, and the transparent photovoltaic component 10 is arranged to be light-transmissive, so that the light irradiated by the light source to the transparent photovoltaic component 10 is converted into electrical energy by the transparent photovoltaic component 10, and the light transmitted through the transparent photovoltaic component 10 is irradiated to the photocatalytic component 20 and reacts with the photocatalyst to perform a photocatalytic reaction. Therefore, the photovoltaic device can not only exert the photovoltaic power generation function but also the photocatalytic function by integrating the photocatalytic component, thereby efficiently utilizing light energy and reducing the footprint.

[0076] In some embodiments, the transparent photovoltaic component 10 includes a transparent photovoltaic layer 11, wherein the transparent photovoltaic layer 11 is configured to absorb light in a first wavelength range and transmit light in a second wavelength range. The first wavelength range and the second wavelength range at least partially do not overlap.

[0077] The first wavelength range and the second wavelength range may be continuous ranges or discontinuous ranges. Optimally, the first wavelength range and the second wavelength range may cover the entire spectrum to increase the utilization of the spectrum. The first wavelength range and the second wavelength range may also partially overlap.

[0078] Since the wavelength range of light irradiated by the light source to the photocatalytic component 20 to generate a catalytic reaction does not overlap with the wavelength range of light irradiated by the light source to the transparent photovoltaic component 10 to generate electricity, the spectrum utilization rate can be improved.

[0079] As an example, the first wavelength range is a wavelength range with a wavelength greater than or equal to 400 nm, and the second wavelength range is a wavelength range less than 400 nm.

[0080] Light with a wavelength range greater than or equal to 400nm can cover visible light and infrared light, and light with a wavelength range less than or equal to 400nm can cover ultraviolet light. Since the wavelength range of light absorbed by the photocatalytic component 20 and the wavelength range of light absorbed by the transparent photovoltaic component 10 can cover the full spectrum of sunlight, the photocatalytic component 20 and the transparent photovoltaic component 10 can respectively absorb light in different wavelength ranges, forming complementarity, and can make full use of light energy, thereby further improving the light energy utilization rate and light energy conversion rate.

[0081] In some embodiments, the transparent photovoltaic layer 11 includes any one of the following: a perovskite layer, a cadmium telluride thin film layer, a copper indium gallium selenide thin film layer, and an organic solar layer.

[0082] Transparent photovoltaic layers made of suitable materials can achieve more efficient photoelectric conversion efficiency.

[0083] In some embodiments, the transparent photovoltaic layer 11 includes a perovskite layer, and the transparent photovoltaic component 10 is a perovskite photovoltaic cell. For example, the perovskite photovoltaic cell includes a first electrode layer, a first carrier transport layer, a perovskite layer, a second carrier transport layer, and a second electrode layer stacked in sequence. The first carrier transport layer and the second carrier transport layer can be two types of hole transport layers or electron transport layers, and the two types of carrier transport layers are different; the first and second carrier transport layers are used to transfer the electrons and holes generated by the perovskite layer excited by the light source to the two electrode layers respectively, and the two electrode layers can be connected to an external circuit to form a loop to store electrical energy or drive the load to work. In some embodiments, the first electrode layer and the second electrode layer are transparent electrode layers, so that the light source not absorbed by the perovskite layer can pass through the transparent photovoltaic component 10 and enter the photocatalytic component 20.

[0084] In some embodiments, the transparent photovoltaic assembly 10 further includes a first light-transmitting plate 12 and a second light-transmitting plate 13 stacked along the light transmission direction, and the transparent photovoltaic layer 11 is sandwiched between the first light-transmitting plate 12 and the second light-transmitting plate 13. Figure 3 and Figure 4 In some embodiments of the present application, the light transmission direction X is consistent with the stacking direction of the transparent photovoltaic component 10 and the photocatalytic component 20, and is also consistent with the stacking direction of the first light-transmitting plate 12, the transparent photovoltaic layer 11, and the second light-transmitting plate 13.

[0085] The first light-transmitting plate 12 and the second light-transmitting plate 13 are used to fix and protect the transparent photovoltaic layer 11, and light can pass through the first light-transmitting plate 12 and the second light-transmitting plate 13. The first light-transmitting plate 12 and the second light-transmitting plate 13 can be made of transparent glass, transparent plastic plate, transparent resin or other light-transmitting materials. Along the stacking direction, the first light-transmitting plate 12, the transparent photovoltaic layer 11, and the second light-transmitting plate 13 are stacked in sequence, for example, stacked in sequence from top to bottom.

[0086] The transparent photovoltaic layer is sandwiched by the first light-transmitting plate 12 and the second light-transmitting plate 13 , which provides good protection for the transparent photovoltaic layer without affecting light transmission.

[0087] In some embodiments, the first light-transmitting plate 12 includes a transparent glass plate; and / or the second light-transmitting plate 13 includes a transparent glass plate.

[0088] The glass plate has good light transmittance, reduces light reflection, increases light energy transmittance, and thus improves the utilization rate of light energy by the photovoltaic device.

[0089] In some embodiments, the transparent photovoltaic module 10 further includes a positive lead-out terminal and a negative lead-out terminal connected to the transparent photovoltaic layer 11 .

[0090] The positive lead-out terminal and the negative lead-out terminal are convenient for connecting energy storage batteries or loads, so as to store and utilize the converted electric energy in a timely manner.

[0091] In some embodiments, the transparent photovoltaic module 10 further includes a positive lead wire 111 and a negative lead wire 112 , which are connected to the positive lead terminal and the negative lead terminal respectively, wherein the positive lead wire 111 and the negative lead wire 112 are led out from the side of the transparent photovoltaic layer 11 .

[0092] The positive electrode lead wire 111 and the negative electrode lead wire 112 may be led out from the same side of the transparent photovoltaic layer 11 , or from different sides.

[0093] The positive electrode lead wire 111 and the negative electrode lead wire 112 led out from the side of the transparent photovoltaic layer 11 can reduce light blocking and improve light energy utilization.

[0094] In some embodiments, the photocatalytic component 20 includes a photocatalytic hydrogen production component. The photocatalytic hydrogen production component can be combined with a photovoltaic component, a portion of the light is used for the photovoltaic component to generate electricity, and at least another portion of the light is used for photocatalytic hydrogen production, which can achieve power generation and hydrogen production at the same time. As an example, the photocatalyst 21 includes any one of the following: TiO2, SrTiO3, NaTaO3, K4Nb6O 17 、Rb4Nb6O 17 , WO3, Fe2O3, BiVO4, Cu2O, Ag3VO4, SnNb2O6, PbBi2Nb2O9, Bi2MoO6, TaON, Ta3N5, LaTiO2N, LaTaON2, Sm2Ti2S2O5, CdS, CdSe.

[0095] For example, the photocatalyst materials that absorb ultraviolet light are as follows: Ti-based, Zr-based, Nb-based, Ta-based, W-based, Mo-based oxides or oxyacid salts, such as TiO2, SrTiO3, NaTaO3, K4Nb6O 17 、Rb4Nb6O 17 wait.

[0096] The photocatalyst materials that absorb visible light are as follows: WO3, Fe2O3, BiVO4, Cu2O, Ag3VO4, SnNb2O6, PbBi2Nb2O9, Bi2MoO6, etc. + , Pb 2+ , Cu 2+ Sn 2+ 、Bi 3+ Oxide of metal ns orbital; containing Ti 4+ 、 5+ , Nb 5+ Nitrogen (oxide) compounds and sulfur oxides of central atoms with d0 configuration, such as TaON, Ta3N5, LaTiO2N, LaTaON2, Sm2Ti2S2O5, etc.; semiconductor photocatalytic materials that do not contain oxygen elements, such as CdS and CdSe, etc.; it can also be other sensitized photocatalytic materials or polymer materials.

[0097] Photocatalysts made of suitable materials can efficiently catalyze reactions with light in the second wavelength range, thereby improving the utilization rate of light energy and thus improving hydrogen production efficiency.

[0098] Of course, in some embodiments, the photocatalytic component 20 may also be other devices that work using the catalytic effect of a photocatalyst, and accordingly, the photocatalyst may be selected according to the catalytic effect to be achieved, such as photocatalytic degradation of antibiotics in wastewater, photocatalytic preparation of organic compounds, etc.

[0099] In some embodiments, the photocatalytic component 20 also includes a hydrogen production base plate 22, which is located on the backlight side of the transparent photovoltaic component 10. The hydrogen production base plate 22 includes a hydrogen production cavity 22a and a liquid injection port 221, a liquid discharge port 222 and a gas collection port 223 connected to the hydrogen production cavity 22a. The hydrogen production cavity 22a is used to accommodate hydrogen production liquid and / or photocatalyst.

[0100] The hydrogen production chamber 22a is used to contain hydrogen production liquid, such as water. The hydrogen production liquid is injected into the hydrogen production chamber 22a through the liquid injection port 221 and discharged through the liquid discharge port 222. The hydrogen production liquid in the hydrogen production chamber 22a reacts with the photocatalyst 21 to generate hydrogen and oxygen, and the generated hydrogen and oxygen are discharged from the gas collection port 223 for collection and storage.

[0101] The hydrogen production liquid in the hydrogen production cavity 22a produces hydrogen through the catalytic action of the catalyst and light, and can also cool down the transparent photovoltaic layer.

[0102] In some embodiments, the hydrogen production cavity 22a is provided with a light-transmitting opening, the photocatalyst is located at a position in the hydrogen production cavity 22a corresponding to the light-transmitting opening, and the transparent photovoltaic assembly 10 is disposed on the hydrogen production bottom plate 22 and closes the light-transmitting opening.

[0103] The transparent photovoltaic module 10 is used to seal the light-transmitting opening of the hydrogen production cavity, which has a higher degree of integration, makes the overall structure of the photovoltaic device more compact, and reduces space occupation.

[0104] In some embodiments, the transparent photovoltaic assembly 10 can be disposed on the hydrogen production bottom plate 22 through the second light-transmitting plate 13 and the light-transmitting opening can be sealed.

[0105] The second light-transmitting plate 13 closes the light-transmitting opening, so that the hydrogen-producing bottom plate 22 and the second light-transmitting plate 13 together form a closed hydrogen-producing cavity 22a. While the second light-transmitting plate 13 protects the transparent photovoltaic layer 11, it also serves as a part of the photocatalytic component 20, that is, the transparent photovoltaic component 10 and the photocatalytic component 20 share the second light-transmitting plate 13, and the structure is more compact, further improving the cooling effect of the hydrogen-producing liquid in the hydrogen-producing cavity 22a on the transparent photovoltaic layer 11.

[0106] For example, the second light-transmitting plate 13 can be fixed to the light-transmitting opening of the hydrogen-producing bottom plate 22 by gluing. Alternatively, the second light-transmitting plate 13 can be fixed to the light-transmitting opening of the hydrogen-producing bottom plate 22 by a sealing member, and the sealing member can be, for example, a sealing rubber ring.

[0107] In some embodiments, the hydrogen production cavity 22a is provided with a light-transmitting opening, and a third light-transmitting plate 23 is provided between the transparent photovoltaic assembly 10 and the hydrogen production bottom plate 22 . The third light-transmitting plate 23 is provided on the hydrogen production bottom plate 22 and closes the light-transmitting opening.

[0108] The third light-transmitting plate 23 seals the light-transmitting port of the hydrogen-producing cavity 22 a, so as to facilitate the maintenance of the transparent photovoltaic component 10 and the photocatalytic component 20 .

[0109] In some embodiments, the transparent photovoltaic assembly 10 is bonded to the third light-transmitting plate by a light-transmitting adhesive.

[0110] As an example, the third light-transmitting plate 23 may be bonded and fixed to the second light-transmitting plate 13 via an adhesive layer, thereby combining the transparent photovoltaic component 10 and the photocatalytic component 20 together.

[0111] The third light-transmitting plate 23 may be, for example, a transparent glass or transparent plastic plate, a transparent resin or other light-transmitting material. For example, the third light-transmitting plate 23 may be fixed to the light-transmitting opening of the hydrogen production bottom plate 22 by gluing. Alternatively, the third light-transmitting plate 23 may be fixed to the light-transmitting opening of the hydrogen production bottom plate 22 by a sealing member, and the sealing member may be, for example, a sealing rubber ring. The sealing rubber ring may be made of nitrile, polytetrafluoroethylene, silicone rubber, polyurethane rubber or other materials.

[0112] The light-transmitting opening is sealed by the third light-transmitting plate 23, so that the photocatalytic component 20 can be modularized and easy to maintain.

[0113] It can be understood that in the photovoltaic device integrated with the photocatalytic component of the embodiment of the present application, the transparent photovoltaic component 10 and the photocatalytic component 20 can share a second light-transmitting plate 13 to achieve the combination of the two; or the transparent photovoltaic component 10 and the photocatalytic component 20 are fixed by the second light-transmitting plate 13 and the third light-transmitting plate 23 to achieve the combination of the two.

[0114] In addition, in some embodiments of the present application, the hydrogen production base plate 22 itself can have a closed hydrogen production cavity 22a, without the need for a light-transmitting port and a third light-transmitting plate 23. The hydrogen production cavity 22a has a transparent surface facing the light-facing side so that sunlight can enter the hydrogen production cavity 22a and react with the photocatalyst 21.

[0115] In some embodiments, the photocatalyst 21 is attached to the surface of the hydrogen production cavity 22 a ; and / or, the photocatalyst is attached to the surface of the backlight side of the photovoltaic module 10 .

[0116] In some embodiments, the photocatalyst 21 is attached to the surface of the third light-transmitting plate 23 .

[0117] The photocatalyst 21 may be sprayed on the surface of the hydrogen production cavity 22a and / or the surface of the third light-transmitting plate 23 to form a photocatalytic layer. The photocatalytic layer may cover the entire surface or a portion of the surface of the hydrogen production cavity 22a and / or the third light-transmitting plate 23; the thickness of the photocatalytic layer may be 1 μm to 100 μm.

[0118] By attaching the photocatalyst 21 in a layered structure to the surface of the hydrogen production cavity 22a and / or the surface of the third light-transmitting plate 23, light energy is absorbed more evenly, thereby improving light energy utilization efficiency.

[0119] In some embodiments, the photocatalyst 21 is dissolved in the hydrogen-producing liquid in the hydrogen-producing cavity 22 a , and the hydrogen-producing bottom plate 22 further includes a catalyst inlet communicating with the hydrogen-producing cavity 22 a .

[0120] During the operation of the photocatalytic component 20 , the photocatalyst 21 is injected into the hydrogen production cavity 22 a through the catalyst inlet, and the photocatalyst 21 is mixed more evenly with the hydrogen production liquid, thereby improving the hydrogen production efficiency.

[0121] In some embodiments, the photocatalytic component 20 further includes a photocatalyst mesh plate 24 disposed in the hydrogen production cavity 22 a , and the photocatalyst 21 is attached to the photocatalyst mesh plate 24 .

[0122] By separately arranging the photocatalyst mesh plate 24, the photocatalyst 21 on the photocatalyst mesh plate 24 can fully react with the hydrogen production liquid, thereby improving the hydrogen production efficiency.

[0123] In some embodiments, a flow channel 22 b is provided in the hydrogen production cavity 22 a , and the flow channel 22 b is connected with the liquid injection port 221 and the liquid discharge port 222 . The flow channel 22 b is used to guide the hydrogen production liquid to the gas collection port 223 side.

[0124] The flow channel 22 b extends toward the gas collecting port 223 , and the flow channel 22 b may be a linear flow channel or a curved flow channel.

[0125] The hydrogen production liquid is guided toward the gas collecting port 223 through the flow channel 22 b , thereby enhancing the uniformity of the liquid and the produced gas in the hydrogen production chamber.

[0126] In some embodiments, the photocatalytic component 20 also includes a circulation pump connected to the injection port 221 and the discharge port 222, and the circulation pump is electrically connected to the transparent photovoltaic layer 11, thereby supplying power through the transparent photovoltaic component 10; or the circulation pump is connected to an external power supply, thereby supplying power through the external power supply.

[0127] The circulation pump is powered by the transparent photovoltaic module 10, saving electricity costs.

[0128] In some embodiments, the photovoltaic device integrated with the photocatalytic component further includes a frame 30 , and the transparent photovoltaic component and the photocatalytic component are integrated into a stacked body by being surrounded by a frame.

[0129] The frame 30 may have a receiving space, and the transparent photovoltaic component 10 and the photocatalytic component 20 are fixed in the receiving space, that is, the transparent photovoltaic component 10 and the photocatalytic component 20 are combined by the frame 30 .

[0130] The transparent photovoltaic component 10 and the photocatalytic component 20 are fixed by the frame 30, which is convenient for assembly and disassembly and is conducive to maintenance and replacement.

[0131] It can be understood that the transparent photovoltaic component 10 and the photocatalytic component 20 of the photovoltaic device integrated with the photocatalytic component in the embodiment of the present application can be combined to form a stacked component through a frame 30, and can also be combined to form a stacked component by bonding.

[0132] In some embodiments, the photovoltaic device integrated with the photocatalytic component further includes: a bracket to support the stacked assembly 100, wherein the bracket is configured as a fixed bracket to support the stacked body in a fixed posture, or the bracket is configured as a tracking bracket to support the stacked body to move following the light source.

[0133] When the bracket is a fixed bracket, the supporting stack assembly 100 and the bracket have an optimal inclination angle. The optimal inclination angle of the fixed bracket is related to its latitude. For example, simulation can be performed through PVsyst software or similar software to confirm the inclination angle corresponding to the maximum radiation received throughout the year.

[0134] The tracking bracket can be in the form of flat single-axis tracking, inclined single-axis tracking, etc.

[0135] In some embodiments, there are more than two stacked assemblies 100, and the more than two stacked assemblies are arranged so that the light-facing surface of the light-facing side of the transparent photovoltaic assembly 10 constitutes a large light-facing surface, and the transparent photovoltaic assemblies 10 of two adjacent stacked assemblies 100 are connected in series or in parallel through their respective transparent photovoltaic layers 11, and the photocatalytic assemblies 20 of two adjacent stacked assemblies 100 are connected in series or in parallel through their respective hydrogen production cavities 22a.

[0136] The number of stacked assemblies 100 can be two, three, four, five or more. The large light-facing surface is formed by splicing light-facing surfaces one by one, and these light-facing surfaces may have gaps between each other, or may be connected together by means of connectors. Multiple stacked assemblies 100 can be connected in series or in parallel. Taking series connection as an example, the positive lead 111 of one transparent photovoltaic layer 11 of the transparent photovoltaic assemblies 10 of two adjacent stacked assemblies 100 is connected to the negative lead 112 of the other transparent photovoltaic layer 11, and the injection port 221 of one hydrogen production base plate 22 of the photocatalytic assembly 20 of two adjacent stacked assemblies 100 is connected to the discharge port 222 of the other hydrogen production base plate 22, and each gas collection port 223 is connected through a gas collection main pipeline 101. In some embodiments, the catalyst inlets of each hydrogen production base plate 22 are connected through a catalyst main pipeline.

[0137] By connecting at least two stacked assemblies 100 in series or in parallel, the amount of electric energy conversion and hydrogen production is increased, and the utilization rate of light energy is improved.

[0138] A specific example of an embodiment of the present application is described below.

[0139] See also Figures 1 to 3 The photovoltaic device integrated with the photocatalytic component includes a stacked component 100 composed of a transparent photovoltaic component 10 and a photocatalytic component 20, and a frame 30 for fixing the transparent photovoltaic component 10 and the photocatalytic component 20 together. The transparent photovoltaic component 10 includes a first light-transmitting plate 12, a transparent photovoltaic layer 11, and a second light-transmitting plate 13 stacked in sequence along the light transmission direction X (stacking direction), and the photocatalytic component 20 includes a hydrogen-producing bottom plate 22 located on the side of the second light-transmitting plate 13 away from the transparent photovoltaic layer 11 along the stacking direction, and the hydrogen-producing bottom plate 22 has a hydrogen-producing cavity 22a for accommodating hydrogen-producing liquid, a liquid injection port 221 connected to the hydrogen-producing cavity 22a, a liquid discharge port 222, and a gas collection port 223 ( Figure 5 As shown), a photocatalyst mesh plate 24 is provided in the hydrogen production cavity 22a, and a photocatalyst 21 is coated on the photocatalyst mesh plate 24, so that the photocatalyst 21 forms a layer structure on the photocatalyst mesh plate 24. A flow channel 22b for directing the hydrogen production liquid toward the gas collecting port 223 is also formed in the hydrogen production cavity 22a. The transparent photovoltaic layer 11 is connected to a positive electrode lead wire 111 and a negative electrode lead wire 112 led out from its side. The first light-transmitting plate 12 and the second light-transmitting plate 13 can be transparent glass. The transparent photovoltaic layer 11 can be perovskite. The photocatalyst 21 can be TiO2.

[0140] Reference Figure 6 The photovoltaic device integrated with the photocatalytic component includes a plurality of stacked components 100 connected in series, the transparent photovoltaic components 10 between each stacked component 100 are connected in series through the positive lead wire 111 and the negative lead wire 112, the photocatalytic components 20 are connected in series through the injection port 221 and the discharge port 222, and each gas collection port 223 can be connected through the gas collection main pipeline 101.

[0141] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A photovoltaic device integrated with a photocatalytic component, characterized in that: include: A transparent photovoltaic component, wherein the transparent photovoltaic component is configured to allow light to pass through, and along the light transmission direction, the transparent photovoltaic component has a light-facing side facing the light source and a light-repelling side facing away from the light source; The photocatalytic component is stacked with the transparent photovoltaic component and is arranged on the backlight side of the transparent photovoltaic component.

2. The photovoltaic device integrated with a photocatalytic component according to claim 1, characterized in that: The transparent photovoltaic component includes a transparent photovoltaic layer, which can absorb light in a first wavelength range and transmit light in a second wavelength range, wherein the first wavelength range and the second wavelength range at least partially do not overlap.

3. The photovoltaic device integrated with a photocatalytic component according to claim 2, characterized in that: The transparent photovoltaic layer includes any one of the following: a perovskite layer, a cadmium telluride thin film layer, a copper indium gallium selenide thin film layer, and an organic solar layer.

4. The photovoltaic device integrated with a photocatalytic component according to claim 2, characterized in that: The transparent photovoltaic assembly further includes a first light-transmitting plate and a second light-transmitting plate stacked along the light transmission direction, and the transparent photovoltaic layer is sandwiched between the first light-transmitting plate and the second light-transmitting plate.

5. The photovoltaic device integrated with a photocatalytic component according to claim 4, characterized in that: The first light-transmitting plate comprises a transparent glass plate; and / or, The second light-transmitting plate comprises a transparent glass plate.

6. The photovoltaic device integrated with a photocatalytic component according to any one of claims 2 to 5, characterized in that: The transparent photovoltaic module further includes a positive lead-out terminal and a negative lead-out terminal connected to the transparent photovoltaic layer.

7. The photovoltaic device integrated with a photocatalytic component according to any one of claims 1 to 5, characterized in that: The photocatalytic component includes a photocatalytic hydrogen production component.

8. The photovoltaic device integrated with a photocatalytic component according to claim 7, characterized in that: The photocatalytic component comprises a hydrogen production base plate, and the hydrogen production base plate is located on the backlight side of the transparent photovoltaic component. The hydrogen production base plate comprises a hydrogen production cavity and a liquid injection port, a liquid discharge port and a gas collection port connected to the hydrogen production cavity. The hydrogen production cavity is used to contain hydrogen production liquid and / or a photocatalyst.

9. The photovoltaic device integrated with a photocatalytic component according to claim 8, characterized in that: The hydrogen production cavity is provided with a light-transmitting opening, the photocatalyst is located at a position in the hydrogen production cavity corresponding to the light-transmitting opening, and the transparent photovoltaic component is arranged on the hydrogen production bottom plate and closes the light-transmitting opening.

10. The photovoltaic device integrated with a photocatalytic component according to claim 9, characterized in that: A third light-transmitting plate is further provided between the transparent photovoltaic assembly and the hydrogen-producing bottom plate. The third light-transmitting plate is arranged on the hydrogen-producing bottom plate and closes the light-transmitting opening.

11. The photovoltaic device integrated with a photocatalytic component according to claim 10, characterized in that: The transparent photovoltaic assembly is bonded to the third light-transmitting plate by a light-transmitting adhesive.

12. The photovoltaic device integrated with a photocatalytic component according to claim 9, characterized in that: The photocatalyst is attached to the surface of the hydrogen production cavity; and / or, The photocatalyst is attached to the surface of the backlight side of the transparent photovoltaic component.

13. The photovoltaic device integrated with a photocatalytic component according to claim 10, characterized in that: The photocatalyst is attached to a surface of the third light-transmitting plate facing the hydrogen production cavity.

14. The photovoltaic device integrated with a photocatalytic component according to any one of claims 8 to 13, characterized in that: The photocatalytic assembly further includes a circulation pump connected to the liquid injection port and the liquid discharge port. The circulation pump is electrically connected to the transparent photovoltaic assembly; or the circulation pump is electrically connected to an external power supply.

15. A photovoltaic device integrated with a photocatalytic component according to any one of claims 1 to 5, or 8 to 13, characterized in that: The transparent photovoltaic component and the photocatalytic component are integrated into a stacked body by being surrounded by a frame.

16. The photovoltaic device integrated with a photocatalytic component according to claim 15, characterized in that: Also includes a bracket, the bracket supports the stacked body, The support is configured as a fixed support that supports the stacked body in a fixed posture, or The support is configured as a tracking support that supports the stacked body so as to follow the movement of the light source.

17. A photovoltaic device integrated with a photocatalytic component according to any one of claims 8 to 13, characterized in that: The transparent photovoltaic module comprises a transparent photovoltaic layer. The transparent photovoltaic component and the photocatalytic component are stacked to form a stacked component. Two or more stacked assemblies are arranged so that the light-facing surface of the light-facing side of the transparent photovoltaic assembly forms a large light-facing surface. The transparent photovoltaic components in two adjacent stacked components are connected in series or in parallel via their respective transparent photovoltaic layers, and the photocatalytic components in two adjacent stacked components are connected in series or in parallel via their respective hydrogen production cavities.

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