Goods & Services

Photovoltaic cells and solar electric panels; photovoltaic cell; solar cell; solar panel; photovoltaic cell; photovoltaic power generation equipment; photovoltaic solar modules for production of electricity; photovoltaic power generation panel; solar power generation device and equipment; rechargeable battery for powering electric vehicle; solar-powered charger; crystalline silicon solar cells.

Abstract

Disclosed are a heterojunction solar cell and a manufacturing method therefor and a heterojunction photovoltaic module. The manufacturing method comprises: obtaining a silicon wafer having amorphous silicon film layers deposited on the front and back sides; depositing a TCO film layer on the surface of the amorphous silicon film layer on the front side; flipping the silicon wafer by 180 degrees, and covering the edge of the surface of the amorphous silicon film layer on the back side with a mask, wherein the width of the mask ranges from 0.05 mm to 0.5 mm, comprising endpoint values; depositing a TCO film layer on the surface of the amorphous silicon film layer covered with the mask; and manufacturing electrodes on the surfaces of the TCO film layers on the front and back sides to obtain the heterojunction solar cell. According to the present application, the TCO film layer is deposited on the surface of the amorphous silicon film layer on the front side, then the silicon wafer is flipped, the surface of the amorphous silicon film layer on the back side is covered with the mask, the width of the mask ranges from 0.05 mm to 0.5 mm, the shielding width of the mask is narrowed, the area of the TCO film layer on the back side is increased, and the efficiency of the cell is improved.

IPC Classes  ?

• H01L 31/20 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor material
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/0216 - Coatings
• H01L 31/0224 - Electrodes
• H01L 31/0747 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type comprising a AIVBIV heterojunction, e.g. Si/Ge, SiGe/Si or Si/SiC solar cells comprising a heterojunction of crystalline and amorphous materials, e.g. heterojunction with intrinsic thin layer or HIT® solar cells
• H01L 31/072 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type

Goods & Services

Photovoltaic cells and solar electric panels for the production of electricity; photovoltaic cells; solar cells; solar panels for production of electricity; photovoltaic power generation equipment, namely, photovoltaic modules; photovoltaic solar modules for production of electricity; photovoltaic power generation panel solar panels; solar power generation device and equipment, namely, solar panels for the production of electricity; rechargeable battery for powering electric vehicle; solar-powered battery charger; crystalline silicon solar cells

Abstract

An efficient heterojunction battery structure and a preparation method therefor. The efficient heterojunction battery structure comprises a bottom electrode (1), a back transparent conductive film layer (2), an n-type doped amorphous silicon layer (3), a back intrinsic amorphous silicon layer (4), a back intrinsic amorphous silicon buffer layer (5), an n-type monocrystalline silicon wafer (6), a front intrinsic amorphous silicon buffer layer (7), a front intrinsic amorphous silicon layer (8), a p-type doped amorphous silicon layer (9), a front transparent conductive film layer (10), and a top electrode (11) which are successively disposed from bottom to top. According to the efficient heterojunction battery structure and the preparation method therefor, the definition of an amorphous silicon/silicon substrate interface is greatly improved, a passivation effect is improved, and the open-circuit voltage of a battery and fill factor related to the open-circuit voltage are further improved.

IPC Classes  ?

• H01L 31/0376 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes including amorphous semiconductors
• H01L 31/072 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type

Abstract

Disclosed is a stacked cell structure, comprising a top cell unit (1), a bottom cell unit (2), and an intermediate layer (3) located between the top cell unit (1) and the bottom cell unit (2). The intermediate layer (3) is constructed as a tunnel junction composed of p+/n+ double-layer silicon films; the top cell unit (1) comprises an electron transport layer (11), a perovskite photosensitive layer (12), and a hole transport layer (13) that are sequentially stacked in the direction toward the intermediate layer (3) as well as front electrodes (17) provided on the electron transport layer (11); and the bottom cell unit (2) is a PERC solar cell. Disclosed is a manufacturing method for the stacked cell structure. The use of a silicon film tunnel junction structure can achieve good perovskite cell performance. The stacked cell structure has high photoelectric conversion efficiency.

IPC Classes  ?

• H01L 31/078 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier including different types of potential barriers provided for in two or more of groups
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

xx2x2xxxxxyxyxyy film layer (132). The anti-reflection film structure (100) effectively reduces the reflection of incident light, and in particular, reduces the reflection of light having a wavelength less than 500 nm, and improves the spectral response of light having a wavelength greater than 800 nm, and the reflectivity of a front medium film can be reduced to be within 1%.

IPC Classes  ?

• H01L 31/0216 - Coatings
• H01L 31/068 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

A method for preparing an N-type crystalline silicon battery. The method sequentially comprises the following steps: A. doping one surface of a textured N-type crystalline silicon wafer (5) with boron; B. placing the N-type crystalline silicon wafer (5), with the boron-doped surface facing upwards, into a first solution in a floating manner to conduct treatment; C. growing a thin oxide layer (6) on the other surface of the N-type crystalline silicon wafer (5); D. depositing a polysilicon layer (7) on the thin oxide layer (6) and doping the polysilicon layer (7) with phosphorus; E. placing the N-type crystalline silicon wafer (5), with the phosphorus-doped surface facing upwards, into a second solution in a floating manner to conduct treatment; F. placing the second-solution-treated N-type crystalline silicon wafer (5) in an alkaline solution to conduct treatment; G. removing the phosphosilicate glass and borosilicate glass on the surface of the N-type crystalline silicon wafer (5); H. oxidizing the surface of N-type crystalline silicon wafer (5); I. depositing passivation anti-reflection layers (2, 8) and a passivation layer on the N-type crystalline silicon wafer (5); and J. performing a metallization process. The above preparation method solves an electric leakage problem of N-type crystalline silicon batteries.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/068 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
• H01L 31/0216 - Coatings

Abstract

A double-sided solar cell provided with an ion conductive film layer on a surface of a silicon nitride film layer facing away from a substrate of the solar cell, wherein the resistance of the ion conductive film layer is required to be less than the resistance of the silicon nitride film layer, and a rear glass member is specifically attached to a surface of the ion conductive film layer. Since the resistance of the ion conductive film layer is less than the resistance of the silicon nitride film layer, and the ion conductive film layer is in contact with a rear electrode, when positive ions in the rear glass member are being transferred to the ion conductive film layer, the positive ions are transported out of the double-sided solar cell via the rear electrode instead of being gradually transferred to an aluminum oxide film layer to become neutralized with negative charges fixed in the aluminum oxide film layer, and in turn influencing a passivation effect of the aluminum oxide film layer. In this way, the double-sided solar cell has sufficient reliability. Further provided is a manufacturing method for a double-sided solar cell, and the manufactured double-sided solar cell also has the above advantage.

IPC Classes  ?

• H01L 31/0216 - Coatings
• H01L 31/0224 - Electrodes
• H01L 31/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

A bifacial solar cell and a preparation method therefor. The bifacial solar cell comprises a P-type substrate layer; a first doping layer located on a first surface of the P-type substrate layer, with the first doping layer comprising a first heavily-doped region and a first lightly-doped region surrounding an outer edge of the first heavily-doped region; a first passivation layer located on an upper surface of the first doping layer; a first electrode located on an upper surface of the first passivation layer, with the first electrode being in contact with the first heavily-doped region; a second doping layer located on a second surface of the P-type substrate layer, with the second doping layer comprising a second heavily-doped region and a second lightly-doped region; a second passivation layer located on a lower surface of the second doping layer; and a second electrode located on a lower surface of the second passivation layer, wherein the first surface is opposite the second surface. According to the bifacial solar cell in the present application, selective emitter technology is used on both a first surface and a second surface of the cell, such that the photoelectric conversion efficiency is further improved.

IPC Classes  ?

• H01L 31/0236 - Special surface textures
• H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
• H01L 31/068 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Disclosed in the present invention are a PERC battery back passivation structure and a preparation method therefor. The PERC battery back passivation structure comprises a silicon substrate, and further comprises a silicon oxide passivation film layer, an aluminum oxide passivation film layer, and a silicon nitride passivation film layer which are stacked in sequence; the silicon oxide passivation film layer is formed on the silicon substrate, the aluminum oxide passivation film layer is formed on the silicon oxide passivation film layer, and the silicon nitride passivation film layer is formed on the aluminum oxide passivation film layer. The back passivation structure facilitates reducing surface state density of the silicon substrate, and has low internal reflection; furthermore, aluminum oxide keeps a good passivation effect, an open-circuit voltage and a short-circuit current of a battery are increased, and then the conversion efficiency of the battery is improved.

IPC Classes  ?

• H01L 31/0216 - Coatings
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Provided is a double-sided photovoltaic assembly with adjustable light transmittance, in particular a BIPV assembly with adjustable light transmittance. The double-sided photovoltaic assembly comprises, from top to bottom, a piece of front panel glass (1), a first encapsulation film (2), a cell layer (3) and a piece of back panel glass (6), with the cell layer comprising multiple double-sided solar cells. The double-sided photovoltaic assembly further comprises a transparent insulation film (4) and an electroluminescent film (5) provided between the cell layer and the back panel glass, and a power source for supplying power to the electroluminescent film, with the transparent insulation film being arranged between the electroluminescent film and the cell layer to separate the two. The double-sided photovoltaic assembly further comprises an adjustment mechanism used for adjusting the magnitude of the current provided by the power source to the electroluminescent film so that the light transmittance of the double-sided photovoltaic assembly can be adjusted.

IPC Classes  ?

• H01L 31/048 - Encapsulation of modules
• H01L 31/055 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
• H01L 31/054 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means

Abstract

Disclosed are a photovoltaic module unit and a photovoltaic ecological greenhouse, which are convenient for power transmission and the moving and disassembling of the photovoltaic module unit. The photovoltaic ecological greenhouse comprises a supporting frame, and photovoltaic module unit mounted on the supporting frame, the photovoltaic module unit comprises a bracket and a photovoltaic module arranged on the bracket, the bracket is movably and detachably arranged on the supporting frame; the photovoltaic module unit further comprises a transmission mechanism arranged on a lower part of the bracket, the transmission mechanism has a first contact point electrically connecting to the photovoltaic module; the supporting frame is provided with a second contact point cooperating with the first contact point; and the first contact point is in contact and electrically connected with the second contact point to output electric energy of the photovoltaic module.

IPC Classes  ?

• H02S 10/40 - Mobile PV generator systems
• H02S 20/10 - Supporting structures directly fixed to the ground
• H02S 40/34 - Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
• A01G 9/14 - Greenhouses
• H02S 20/30 - Supporting structures being movable or adjustable, e.g. for angle adjustment
• A01G 9/24 - Devices for heating, ventilating, regulating temperature, or watering, in greenhouses, forcing-frames, or the like
• H02S 40/30 - Electrical components

Abstract

A photovoltaic module unit (2) and a photovoltaic ecological greenhouse, featuring convenient power transmission, and capable of making the moving and disassembling of the photovoltaic module unit (2) more convenient. The photovoltaic ecological greenhouse comprises a supporting frame (1) arranged on the ground to form a support, and one or more photovoltaic module units (2) mounted on the supporting frame (1); the photovoltaic module unit (2) comprises a bracket (21) and a photovoltaic module (22) arranged on the bracket (21), the bracket (21) is movably and detachably arranged on the supporting frame (1); the photovoltaic module unit (2) further comprises a transmission mechanism arranged on a lower part of the bracket (21), the transmission mechanism comprises a first contact (2110) which is arranged on the lower part of the bracket (21) and electrically connected with the photovoltaic module (22); a second contact (120) corresponding to the first contact (2110) is arranged on the supporting frame (1); when the photovoltaic module unit (2) is mounted in a desired position, the first contact (2110) is in contact and electrically connected with the second contact (120), so as to output the electric energy of the photovoltaic module (22).

IPC Classes  ?

• H02S 20/30 - Supporting structures being movable or adjustable, e.g. for angle adjustment
• H02S 40/34 - Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
• A01G 9/14 - Greenhouses

Abstract

A support frame of a photovoltaic greenhouse, comprising standing columns (11) mounted on the ground to form a support, and a framework connected to the upper ends of the standing columns (11) and used for mounting photovoltaic assembly units (2), the standing columns (11) comprising standing column telescopic sleeves (111) and standing column telescopic rods (112) slidably connected to the standing column telescopic sleeves (111), and one of the standing column telescopic sleeve (111) and the standing column telescopic rod (112) being connected to the framework, and the other being mounted on the ground. Said structure allows for adaptive adjustment of the heights of the upper ends of the standing columns according to the heights of plants, and thereby adjustment of the heights of the photovoltaic assemblies, maintaining a certain distance between the photovoltaic assemblies and the top ends of the plants, without affecting the growth of the plants. A photovoltaic greenhouse, comprising said support frame.

IPC Classes  ?

• A01G 9/14 - Greenhouses
• A01G 9/24 - Devices for heating, ventilating, regulating temperature, or watering, in greenhouses, forcing-frames, or the like

Abstract

Provided in the present invention are a photovoltaic ecological greenhouse, and a photovoltaic module unit thereof that is foldable and stackable for storage, thus saving the warehouse space. A photovoltaic module unit for a photovoltaic ecological greenhouse, comprising a support for mounting on a supporting frame of a photovoltaic power station or a photovoltaic ecological greenhouse; and a photovoltaic module provided on said support. The support comprises a bottom support and a vertical telescopic support provided on one side of the bottom support. One side of the photovoltaic module and an upper end of the telescopic support are slidably and rotatably connected, and the other side of the photovoltaic module and the other side of the bottom support are rotatably connected. The telescopic support comprises a support telescoping sleeve fixedly connected to the bottom support, a support telescoping rod vertically slidably connected to the support telescoping sleeve, and a hydraulic drive mechanism provided between the support telescoping sleeve and the supporting telescoping rod. The support telescoping rod is connected with the photovoltaic module.

IPC Classes  ?

• H02S 20/20 - Supporting structures directly fixed to an immovable object

Abstract

A support frame (1) of a photovoltaic ecological greenhouse comprises vertical columns (11) and a framework connected to the top end of the vertical columns (11), the framework comprising a plurality of horizontal guide rails (12) spaced at intervals vertically and respectively extending horizontally, and a plurality of vertical guide rails (13) spaced at intervals horizontally and respectively extending vertically (13), the plurality of horizontal guide rails (12) and the plurality of vertical guide rails (13) mutually intersecting to form a plurality of rectangular framework units arranged in an array, some of the framework units being used as an assembly placement position (14) for mounting a photovoltaic assembly unit (2), the other framework units being used as a delivery unit (15) constituting a delivery channel for the photovoltaic assembly unit (2), a transmission mechanism used for the mechanical connection and/or power transmission of the photovoltaic assembly unit (2) being arranged on the assembly placement position (14), and a connecting mechanism used for arranging the delivery channel being arranged on the delivery unit (15). Also disclosed is a photovoltaic ecological greenhouse.

IPC Classes  ?

• A01G 9/14 - Greenhouses
• A01G 9/26 - Electric devices

Abstract

A method for controlling a photovoltaic ecological greenhouse, comprising the following steps: S1, calculating the amount of radiation required by a plant on a current day according to plant species and growth cycle; S2, converting the obtained required amount of radiation to a shielding area of photovoltaic module units, so as to obtain a total number of required photovoltaic module units; S3, converting the obtained total number of photovoltaic module units, to a number of rows and a number of columns for the photovoltaic module units; S4, determining whether the photovoltaic module units arranged in a previous day satisfies the number of rows and the number of columns obtained in step S3, if no, moving excessive photovoltaic module units back to a module stacking warehouse, or moving needed photovoltaic module units out from the module stacking warehouse, and delivering the same to a specified module arrangement location. Further disclosed is a device for controlling a photovoltaic ecological greenhouse.

IPC Classes  ?

• A01G 9/24 - Devices for heating, ventilating, regulating temperature, or watering, in greenhouses, forcing-frames, or the like

Abstract

A photovoltaic ecological agricultural greenhouse, comprising a rack (1), multiple transverse rods (2) provided on the rack (1) and respectively extending transversely, multiple photovoltaic assembly supports (3) mounted on the transverse rods (2), multiple longitudinal rod assemblies (5) provided on the photovoltaic assembly supports (3) and respectively extending longitudinally, and multiple photovoltaic assemblies (6) provided on the longitudinal rod assemblies (5). The multiple transverse rods (2) are arranged at intervals in the longitudinal direction. The longitudinal rod assemblies (5) are arranged at intervals in the transverse direction. Spaces for growing plants or breeding animals are formed below the photovoltaic assemblies (6). The photovoltaic assemblies (6) are arranged in rows and columns to form an array, and gaps allowing sunlight to enter the spaces are provided among the photovoltaic assemblies (6). The photovoltaic ecological agricultural greenhouse improves the utilization of sunlight.

IPC Classes  ?

• A01G 9/14 - Greenhouses

Abstract

A photovoltaic ecological greenhouse, comprising supports (1), at least one cross rod (2) fixedly provided on the upper ends of the supports (1), multiple columns of photovoltaic assembly supports (3) transversely arranged at intervals, and multiple columns of photovoltaic assemblies (6) respectively installed on the multiple columns of photovoltaic assembly supports (3). Spaces for growing plants or breeding animals are formed below the photovoltaic assemblies (6); gaps allowing sunlight to enter the spaces are provided among the photovoltaic assemblies (6). The lower ends of the photovoltaic assembly supports (3) are connected to the cross rod (2) and can slide transversely to adjust the size of a gap between any two adjacent columns of photovoltaic assemblies.

IPC Classes  ?

• A01G 9/14 - Greenhouses

Abstract

A photovoltaic ecological greenhouse, comprising a mounting rack, at least one column of photovoltaic assembly supports (1) provided on the mounting rack, multiple photovoltaic assemblies (6) mounted on the photovoltaic assembly supports (1), and longitudinal rod assemblies (5) connected between the photovoltaic assembly supports (1) and the photovoltaic assemblies (6). Each column of photovoltaic assemblies (6) is longitudinally arranged at intervals. Spaces for growing plants or breeding animals are formed below the photovoltaic assemblies (6). Gaps allowing sunlight to enter the spaces are provided among the photovoltaic assemblies (6). The photovoltaic assemblies (6) are longitudinally and slidably connected to the longitudinal rod assemblies (5) to adjust the sizes of the gaps. The greenhouse can adjust the sizes of the gaps according to different species of animals and plants and the quantity of illumination required at different growth stages, thereby maximizing the utilization of light energy.

IPC Classes  ?

• A01G 9/14 - Greenhouses
• A01G 9/24 - Devices for heating, ventilating, regulating temperature, or watering, in greenhouses, forcing-frames, or the like
• H02S 20/30 - Supporting structures being movable or adjustable, e.g. for angle adjustment

Abstract

A PID-resistant and wind sand resistant crystalline silicon solar cell assembly comprises a solar cell string (1), polyolefin layers (2) stacked at two sides of the solar cell string, a front plate glass layer (3) stacked on one of the polyolefin layers, a back plate (4) stacked on another polyolefin layer, a frame (6) used for clamping the back plate and the front plate glass layer, and a connection box (5) mounted on the back plate and used for connecting the solar cell string and an external line. By arranging the polyolefin layers at the two sides of the solar cell string, the water vapor permeability can be reduced, the ionic migration phenomenon occurring in packaging materials in a high voltage can be avoided, the PID resistant performance of the assembly can be improved, and the PID phenomenon does not occur during the lifetime of the assembly.

IPC Classes  ?

• H01L 31/048 - Encapsulation of modules
• H02S 30/10 - Frame structures

Abstract

Provided are a silicon wafer surface passivation method and an N-type bifacial cell preparation method based on the silicon wafer surface passivation method. The silicon wafer surface passivation method comprises: processing a silicon wafer surface, so as to remove an oxide layer, borosilicate glass and/or phosphorosilicate glass on the silicon wafer surface; in the irradiation of ultraviolet, blowing the processed silicon wafer surface by using ozone gas, so as to form silicon oxide of a first preset thickness on the processed silicon wafer surface, or soaking the silicon wafer in water containing ozone so as to form silicon oxide of a first preset thickness on the processed silicon wafer surface. In the irradiation of ultraviolet, silicon oxide can be formed on the silicon wafer surface by blowing the silicon wafer surface by using ozone gas or soaking the silicon wafer in water containing ozone, which can be complemented in a normal temperature, thereby greatly reducing costs; and the method is particularly suitable for large-scale industrialized production.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Disclosed is a lightweight solar cell assembly with high mechanical load resistance, comprising a solar cell string (1), EVA layers (2) stacked on two sides of the solar cell string, a front panel glass layer (3) stacked on one of the EVA layers, a back panel (4) stacked on the other of the EVA layers, frames (7) for clamping the back panel and the front panel glass layer, and a junction box (6) mounted on the back panel for connecting the solar cell strings and external circuits, wherein the front panel glass layer is made of super clear patterned glass, and at least one reinforcing rib (5) is mounted inside the frames. On the one hand, arranging at least one reinforcing rib between the back panel and the frames can effectively improve the capability of mechanical load resistance of the cell assembly, and on the other hand, setting the front panel glass to be super clear patterned glass can beneficially reduce the weight of the cell assembly, and improve the photoelectric conversion efficiency thereof.

IPC Classes  ?

• H02S 30/10 - Frame structures
• H01L 31/048 - Encapsulation of modules

Abstract

An intelligent solar photovoltaic module circuit and a control/protection method therefor. The circuit comprises a plurality of groups of photovoltaic strings in series connection. Each group of photovoltaic strings comprises an intelligent photovoltaic module unit, a maximum power point tracking (MPPT) functional module, a switch tube (T) capable of causing a short circuit of the intelligent photovoltaic module unit or causing a disconnection of the photovoltaic string from other photovoltaic strings, a CPU memory module and a control module for controlling the switch tube. The circuit can simplify an MPPT structure, thereby reducing the application of power electronic devices, improving the efficiency and decreasing the cost; and moreover, even if a single solar photovoltaic module is at a disconnected state due to a fault, the output of the entire string is not affected, thereby greatly increasing the utilization rate of photoelectricity.

IPC Classes  ?

• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers

Abstract

Provided is a manufacturing method for an N-type double-sided battery. The method comprises the following steps: S1, performing texturing treatment; S2, evenly coating a boron source on the upper surface of an N-type silicon wafer in a spin coating or silk-screen printing manner, and conducting boron diffusion in a furnace tube; S3, manufacturing a mask; S4, conducting phosphorus diffusion on the lower surface of the N-type silicon wafer, and forming a high-low-junction structure on the lower surface; S5, removing phosphorosilicate glass and the mask that is manufactured in step S3; S6, manufacturing a passivation anti-reflection film made from aluminum oxide and silicon nitride on the surface of the diffused boron, and manufacturing a silicon nitride passivation anti-reflection film on the surface of the diffused phosphorus; and S7, manufacturing an electrode. The manufacturing method for the N-type double-sided battery is simple in process, and effectively improves the efficiency of the battery. In addition, also provided is an N-type double-sided battery. A passivation layer manufacturing method for the N-type double-sided battery is a low-temperature process, and does not damage a PN junction.

IPC Classes  ?

• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/068 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
• H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
• H01L 31/0216 - Coatings
• H01L 21/228 - Diffusion of impurity materials, e.g. doping materials, electrode materials, into, or out of, a semiconductor body, or between semiconductor regionsRedistribution of impurity materials, e.g. without introduction or removal of further dopant using diffusion into, or out of, a solid from or into a liquid phase, e.g. alloy diffusion processes

Abstract

A frameless crystalline silicon battery completely anti-PID lightweight assembly (100) and battery plate, the assembly comprising: a front board glass (10), a battery plate (20), a back board (30) and a junction box (40); the battery plate (20) is located between the front board glass (10) and the back board (30); the front board glass (10) is a photovoltaic ultra-white embossed glass of 4.0-5.0 mm thickness; an encapsulation material layer (50) is provided between the battery plate (20)and the front board glass (10), and another encapsulation material layer (50) is provided between the battery plate (20) and the back board (30); the encapsulation material layer (50) is polyolefin; and the junction box (40) is electrically connected to the battery plate (20). The frameless crystalline silicon battery completely anti-PID lightweight assembly (100) ditches an aluminum frame, and meets the load requirement of 5400 pa without the frame; and the assembly completely resists PID, reduces weight and thickness, and has a reduced manufacturing cost, thus greatly extending the service life of the assembly, reducing power degradation when using the assembly, extending the application range of the crystalline silicon assembly, and improving convenience and transportability of the crystalline silicon assembly.

IPC Classes  ?

• H01L 31/049 - Protective back sheets
• H01L 31/042 - PV modules or arrays of single PV cells

Goods & Services

Solar batteries. Roofing, not of metal, incorporating solar cells.

Goods & Services

Solar batteries. Roofing, not of metal, incorporating solar cells.