WO2020029430A1 - Ensemble de génération d'énergie photovoltaïque - Google Patents

Ensemble de génération d'énergie photovoltaïque Download PDF

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Publication number
WO2020029430A1
WO2020029430A1 PCT/CN2018/111242 CN2018111242W WO2020029430A1 WO 2020029430 A1 WO2020029430 A1 WO 2020029430A1 CN 2018111242 W CN2018111242 W CN 2018111242W WO 2020029430 A1 WO2020029430 A1 WO 2020029430A1
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WO
WIPO (PCT)
Prior art keywords
power generation
groove
electrode
photovoltaic power
generation module
Prior art date
Application number
PCT/CN2018/111242
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English (en)
Chinese (zh)
Inventor
朱彦君
Original Assignee
广东汉能薄膜太阳能有限公司
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Publication date
Application filed by 广东汉能薄膜太阳能有限公司 filed Critical 广东汉能薄膜太阳能有限公司
Publication of WO2020029430A1 publication Critical patent/WO2020029430A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0224—Electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • This application relates to, but is not limited to, photovoltaic cell technology, and more specifically, to a photovoltaic power generation component.
  • BIPV Building Integrated Photovoltaic
  • solar power photovoltaic
  • the pattern of conventional photovoltaic power generation components is drawn on a light-transmitting substrate.
  • the drawn pattern will block light from transmitting to the photovoltaic power generation layer, which will not only affect the efficiency of photovoltaic power generation, but also the blocking of the pattern will cause the hot spot effect of photovoltaic modules. Design freedom.
  • An embodiment of the present application provides a photovoltaic power generation component.
  • the photovoltaic power generation component includes a light-transmitting substrate, an encapsulation layer, and a photovoltaic cell film layer disposed between the light-transmitting substrate and the encapsulation layer.
  • the photovoltaic cell film The layer is provided with grooves forming a preset shape.
  • FIG. 1 is a schematic structural diagram of a photovoltaic power generation module according to an embodiment of the present application.
  • FIG. 2 is a cross-sectional view of a photovoltaic power generation module according to an embodiment of the present application.
  • FIG. 3 is an external view of a photovoltaic power generation module with a rectangular unit pattern according to an embodiment of the present application.
  • FIG. 4 is an external view of a photovoltaic power generation module with a parallelogram unit pattern according to an embodiment of the present application. Two parallelogram units at corresponding positions in two adjacent rows or two columns are staggered.
  • FIG. 5 is another sectional view of the photovoltaic power generation module according to the embodiment of the present application.
  • FIG. 6 is a schematic diagram of a position of an electrode lead of a photovoltaic power generation module according to an embodiment of the present application.
  • FIG. 7 is an external view of a photovoltaic power generation module with a parallelogram unit pattern according to an embodiment of the present application. Two parallelogram units at corresponding positions in two adjacent rows or two columns are symmetrically distributed with respect to a groove shared by them.
  • An embodiment of the present application provides a photovoltaic power generation component.
  • the photovoltaic power generation component includes a light-transmitting substrate, an encapsulation layer, and a photovoltaic cell film layer disposed between the light-transmitting substrate and the encapsulation layer.
  • the photovoltaic cell film The layer is provided with grooves forming a preset shape.
  • the photovoltaic cell film layer may include a first electrode, a power generation layer, and a second electrode in order; the first electrode is light-transmitting An electrode; the trench includes a first trench and a second trench, and the first trench and the second trench penetrate the power generation layer and the second electrode.
  • the second trench may further penetrate the first electrode.
  • a width of the first groove and the second groove may be 2 mm to 10 mm.
  • a plurality of the first trenches and a plurality of the second trenches constitute a quadrangular unit arranged in a row or a column.
  • quadrangular cells of two adjacent rows or two columns may be arranged in an offset manner.
  • the quadrangular unit may be a parallelogram unit; among the parallelogram units arranged in a row, two parallelogram units at corresponding positions in two adjacent rows may share the first groove, and two adjacent The two parallelogram units at the corresponding positions in the rows are symmetrically distributed with respect to the shared first groove; among the parallelogram units arranged in columns, two parallelogram units at the corresponding positions in adjacent two columns can share the first Two grooves, and two parallelogram units at corresponding positions in two adjacent columns are symmetrically distributed with respect to the common second groove.
  • the encapsulation layer may include at least one back sheet, and the photovoltaic cell film layer and the back sheet are bonded together.
  • the encapsulating film which may be a polyvinyl butyral (PVB) film.
  • the color of the encapsulating film can be selected according to actual needs. When a black or white encapsulating film is selected, it is good for architectural beauty. When a transparent encapsulating film is selected, it can be used as an indoor light source to reduce indoor lighting. Energy consumption.
  • the photovoltaic power generation module may further include a positive electrode lead and a negative electrode lead, the positive electrode lead may be electrically connected to a battery cell at one edge of the photovoltaic cell film layer, and the negative electrode lead may be connected to the The battery cells on the opposite side of the photovoltaic cell film layer are electrically connected.
  • insulated wires may be provided around the photovoltaic cell film layer.
  • the light-transmitting substrate may be an anti-reflection coating glass.
  • the photovoltaic power generation module according to the embodiment of the present application is provided with grooves forming a preset shape on the photovoltaic cell film layer to prevent the photovoltaic power generation module from causing a hot spot effect due to pattern blocking, and increase the freedom of pattern design.
  • the photovoltaic power generation module of the embodiment of the present application has a new pattern, which enriches the BIPV product type, meets the requirements of architectural aesthetics for photovoltaic power generation modules, and the process of setting the pattern formed by the trench is simple; The reasonable design of the circuit ensures that the setting of the new pattern does not affect the circuit connection in the module, and has minimal impact on the power generation of the photovoltaic power generation module.
  • an embodiment of the present application provides a photovoltaic power generation component.
  • the photovoltaic power generation component includes a light-transmitting substrate 10, a photovoltaic cell film layer 20, and an encapsulation layer 30.
  • the photovoltaic cell film layer 20 is provided. Between the transparent substrate 10 and the encapsulation layer 30, a groove 50 is formed on the photovoltaic cell film layer 20 to form a predetermined shape.
  • the photovoltaic cell film layer 20 is deposited on the light-transmitting substrate 10, and the encapsulation layer 30 may be combined with the photovoltaic cell film layer 20 by means of bonding, for example, by The encapsulation film 40 is bonded together.
  • the photovoltaic power generation module is provided with a groove 50 forming a preset shape in the photovoltaic cell film layer 20, and the groove 50 may form the same pattern as a conventional printing method.
  • the trench 50 is disposed on the photovoltaic cell film layer 20, the photovoltaic cell film layer 20 will not be blocked, the hot spot effect caused by the pattern shielding is prevented, and the degree of freedom in pattern design is increased.
  • the photovoltaic cell film layer 20 includes a first electrode 21, a power generation layer 22, and a second electrode 23 in this order.
  • the first electrode 21 is a transparent electrode.
  • the trench 50 includes a first trench 51 and a second trench 52. The first trench 51 and the second trench 52 penetrate the power generation layer 22 and the second electrode 23.
  • two opposing first trenches 51 and two opposing second trenches 52 may separate the photovoltaic cell film layer 20 to form a quadrangular unit 100.
  • a plurality of the first trenches 51 and a plurality of the second trenches 52 are formed on the photovoltaic cell film layer 20 as quadrangular cells arranged in rows or columns. Misaligned.
  • the two opposing first trenches 51 may be parallel to each other, and the two opposing second trenches 52 may be parallel to each other.
  • the two opposing first trenches 51 may also be non-parallel, for example, the two opposing first trenches 51 may be inclined in different directions; the two opposing second trenches 52 may also be non-parallel
  • the two opposite second grooves 52 may be inclined in different directions.
  • FIG. 3 is an external view of a photovoltaic power generation module with a rectangular unit pattern according to an embodiment of the present application.
  • the photovoltaic cell film layer 20 of the photovoltaic power generation module is provided with rows of patterns, and each row of patterns includes a plurality of rectangular units.
  • the rectangular cell is formed by partitioning the photovoltaic cell film layer 20 by a first trench 51 in the length direction of the rectangular cell and a second trench 52 in the width direction of the rectangular cell. Rectangular units in two adjacent rows are misaligned, and the dimensions of the plurality of rectangular units are the same, forming a photovoltaic power generation module with a brick pattern. In other embodiments of the present application, the sizes of the plurality of rectangular units may be different.
  • FIG. 4 is an external view of a photovoltaic power generation module with a parallelogram unit pattern according to an embodiment of the present application.
  • the photovoltaic cell film layer of the photovoltaic power generation module is provided with rows of patterns, and each row of patterns includes a plurality of parallelogram units, and the parallelogram units of two adjacent rows are arranged in an offset manner.
  • a width of the first groove and the second groove may be 2 mm to 10 mm.
  • the second trench 52 may further penetrate the first electrode 21.
  • the groove 50 may further include a third groove 53, a fourth groove 54, and a fifth groove 55 that are parallel to the first groove 51 (as shown in FIG. 2).
  • the fourth groove 54 is disposed between the third groove 53 and the fifth groove 55.
  • the third trench 53 penetrates the first electrode 21, and the fourth trench 54 is disposed between the first electrode 21 and the second electrode 23 and penetrates the power generation layer 22.
  • a second electrode film layer electrically connecting the first electrode 21 and the second electrode 23 is provided in the four trenches 54, and the fifth trench 55 penetrates the power generation layer 22 and the second electrode 23.
  • the photovoltaic cell film layer 20 may be provided with a plurality of grooves 50 (as shown in FIG. 3 or 4), and the first groove 51 and the third groove of the plurality of grooves 50 may be provided.
  • the groove 53, the fourth groove 54, and the fifth groove 55 separate the photovoltaic cell film layer 20 into a plurality of electrically connected battery cells.
  • a long strip formed by the trench interval from the left edge to the right edge of the photovoltaic cell film layer is defined as a battery cell. It can be seen that a battery cell is grooved
  • the slots 50 are divided into five or six sections.
  • an insulation wire 60 may be further provided around the photovoltaic cell film layer 20.
  • the insulated wire 60 provides an insulation distance between the photovoltaic cell film layer 20 and the outside world, prevents short circuits around the photovoltaic cell film layer 20, and ensures safety.
  • the insulated wire 60 can be formed by laser scanning the photovoltaic cell film layer 20 to remove the film layer around the photovoltaic cell chip.
  • the photovoltaic power generation module may further include a positive electrode lead 70 and a negative electrode lead 80, and the positive electrode lead 70 and one side of the photovoltaic cell film layer (the upper part shown in FIG. 6) (Side))
  • the second electrode of the battery cell at the edge is electrically connected
  • the negative lead 80 is electrically connected with the second electrode of the battery cell at the edge of the opposite side (the lower side shown in FIG. 6) of the photovoltaic cell film layer, so as to achieve Electrical connection between all battery cells.
  • the packaging layer 30 may include at least one backplane.
  • the back plate is provided with one layer.
  • the backplane may be further provided with more than one extra layer, and adjacent backplanes may be bonded together by using an encapsulating film; or may be disposed on the backplane. Hollow frame, and then set a layer of backboard on the other side of the frame, which can improve the sound insulation effect of the module.
  • the light-transmitting substrate 10 may be an anti-reflection coated glass, so that light pollution caused by specular reflection can be reduced, and the brick texture can be softened.
  • the encapsulating adhesive film 40 may be a photovoltaic-grade PVB adhesive film, and its color requirements are obviously compared with the color of the light-transmitting substrate 10, and may be selected according to actual needs, for example, black, white, or transparent colors.
  • black or white packaging film it is conducive to the aesthetics of the building.
  • transparent packaging film it can be used as an indoor light source to reduce the energy consumption of indoor lighting.
  • An embodiment of the present application further provides a photovoltaic power generation component.
  • the photovoltaic power generation component includes a light-transmitting substrate 10, a packaging layer 30, and a photovoltaic cell film layer 20 disposed between the light-transmitting substrate and the packaging layer.
  • the photovoltaic cell film layer 20 is provided with parallelogram units arranged in rows or columns. The parallelogram units are formed by separating two opposing first trenches 51 and two opposing second trenches 52.
  • a parallelogram unit arranged in a row two parallelogram units in corresponding positions in two adjacent rows share the first groove 51, and two parallelogram units in corresponding positions in two adjacent rows are relative to the common
  • the first grooves 51 are symmetrically distributed; in the parallelogram units arranged in rows, two parallelogram units at corresponding positions in two adjacent rows share the second groove 52, and two The parallelogram units are symmetrically distributed with respect to the shared second trench 52.
  • the photovoltaic cell film layer includes a first electrode 21, a power generation layer 22, and a second electrode 23 in this order; the first trench 51 and the second trench 52 pass through The power generation layer 22 and the second electrode 23.
  • FIG. 7 is an external view of a photovoltaic power generation module with a parallelogram unit pattern according to an embodiment of the present application. It can be seen that the two parallelogram units 100 and 100 ′ at the corresponding positions of two adjacent rows are relative to the common A trench 51 is symmetrically distributed.
  • the photovoltaic cell film layer 20 is deposited on the light-transmitting substrate 10, and the encapsulation layer 30 may be combined with the photovoltaic cell film layer 20 by means of bonding, for example, by The encapsulation film 40 is bonded together.
  • the groove 50 may include a third groove 53, a fourth groove 54, and a fifth groove 55 parallel to the first groove 51.
  • the fourth groove 54 is disposed in the third groove. 53 and the fifth groove 55.
  • the third trench 53 penetrates the first electrode 21, and the fourth trench 54 is disposed between the first electrode 21 and the second electrode 23 and penetrates the power generation layer 22.
  • a second electrode film layer electrically connecting the first electrode 21 and the second electrode 23 is provided in the four trenches 54, and the fifth trench 55 penetrates the power generation layer 22 and the second electrode 23.
  • the photovoltaic cell film layer may be provided with a plurality of grooves 50, and the first groove 51, the third groove 53, the fourth groove 54, and the first groove 51 of the plurality of grooves 50 may be provided.
  • the five grooves 55 separate the photovoltaic cell film layer 20 into a plurality of electrically connected battery cells.
  • the insulated wire 60, the positive electrode lead 70, the negative electrode lead 80, and the packaging layer 30 may adopt the same arrangement manner and material as those in the embodiment corresponding to FIG. 3 or FIG. 4.
  • the first electrode 21, the power generation layer 22, and the second electrode 23 may be disposed on the light-transmitting substrate 10 by a coating method.
  • the first groove 51, the The second trench 52, the third trench 53, the fourth trench 54 and the fifth trench 55 may be formed by laser engraving.
  • the step of preparing the photovoltaic power generation module may include: forming a first coating on the light-transmitting substrate 10 to form the first electrode 21; and performing a laser engraving on the first electrode 21 to etch away
  • the first electrode 21 at the laser-engraved position forms a plurality of third grooves 53; a secondary coating is performed on the first electrode 21 to form the power generation layer 22, and a secondary laser is performed on the power generation layer 22
  • Laser engraving is performed three times to etch away the power generation layer 22 and the second electrode 23 at the laser engraved position to form a plurality of fifth trenches 55.
  • the first trenches 51 and the second trenches 52 having wider widths are formed by laser engraving at appropriate positions.
  • the photovoltaic power generation module forms a pattern by scoring in the photovoltaic cell film layer 20 to prevent the photovoltaic power generation module from causing a hot spot effect due to pattern blocking, and increases the freedom of pattern design.
  • this photovoltaic power generation module has a new pattern, which enriches BIPV's product types and meets the architectural aesthetics requirements for photovoltaic power generation modules.
  • the photovoltaic power generation module of the embodiment of the present application since the photovoltaic power generation module of the embodiment of the present application only removes very few power generation layers when setting a pattern, the power generation capacity of the photovoltaic power generation module of the embodiment of the present application is not significantly different from that of standard products.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un ensemble de génération d'énergie photovoltaïque. L'ensemble de génération d'énergie photovoltaïque comprend un substrat transmettant la lumière, une couche d'encapsulation et une couche de film de cellule photovoltaïque disposée entre le substrat transmettant la lumière et la couche d'encapsulation, la couche de film de cellule photovoltaïque étant pourvue de tranchées formant une forme prédéfinie.
PCT/CN2018/111242 2018-08-06 2018-10-22 Ensemble de génération d'énergie photovoltaïque WO2020029430A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201821253356.6 2018-08-06
CN201821253356.6U CN209981240U (zh) 2018-08-06 2018-08-06 一种光伏发电组件

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WO2020029430A1 true WO2020029430A1 (fr) 2020-02-13

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Publication number Priority date Publication date Assignee Title
CN115799374B (zh) * 2022-11-03 2023-08-22 新源劲吾(北京)科技有限公司 夜晚显色明显的彩色光伏组件及其应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201075389Y (zh) * 2007-08-31 2008-06-18 李毅 一种太阳能电池
US20090246904A1 (en) * 2008-03-19 2009-10-01 Walter Psyk Method for manufacturing a photovoltaic module
CN102332486A (zh) * 2011-04-13 2012-01-25 东旭集团有限公司 一种太阳能电池组件中基板玻璃与背板玻璃的封装工艺
CN103746021A (zh) * 2013-12-25 2014-04-23 湖南共创光伏科技有限公司 一种含彩色艺术图案的透光薄膜太阳能组件及其制作方法
CN103746022A (zh) * 2013-12-25 2014-04-23 湖南共创光伏科技有限公司 一种带艺术图案的透光薄膜太阳能组件及其制造方法
CN103872179A (zh) * 2014-03-05 2014-06-18 广东汉能光伏有限公司 一种提高薄膜太阳能电池效率的制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201075389Y (zh) * 2007-08-31 2008-06-18 李毅 一种太阳能电池
US20090246904A1 (en) * 2008-03-19 2009-10-01 Walter Psyk Method for manufacturing a photovoltaic module
CN102332486A (zh) * 2011-04-13 2012-01-25 东旭集团有限公司 一种太阳能电池组件中基板玻璃与背板玻璃的封装工艺
CN103746021A (zh) * 2013-12-25 2014-04-23 湖南共创光伏科技有限公司 一种含彩色艺术图案的透光薄膜太阳能组件及其制作方法
CN103746022A (zh) * 2013-12-25 2014-04-23 湖南共创光伏科技有限公司 一种带艺术图案的透光薄膜太阳能组件及其制造方法
CN103872179A (zh) * 2014-03-05 2014-06-18 广东汉能光伏有限公司 一种提高薄膜太阳能电池效率的制备方法

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