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112 results about "Silicon cell" patented technology

A silicon cell is a precise replica of (part of) a living cell. It is based on experimentally determined rate laws and parameter values, i.e. only on data, not on fitted values or assumptions.

Benzotriazole light conversion material, preparation method and application of benzotriazole light conversion material in preparation of solar cell packaging film

The invention discloses a benzotriazole light conversion material, a preparation method and application of the benzotriazole light conversion material in preparation of a solar cell packaging film. When a light conversion packaging film formed based on the benzotriazole light conversion material is attached to an organic solar cell, a dye-sensitized solar cell, a crystalline silicon solar cell, a perovskite solar cell and a laminated cell composed of the perovskite cell and the crystalline silicon cell, the ultraviolet stability of the solar cell can be improved; and the power conversion efficiency of the solar cell can be maintained.
Owner:SOUTHEAST UNIV

TBC crystalline silicon cell with back surface doped step by step and region and preparation method of TBC crystalline silicon cell

The invention discloses a TBC crystalline silicon cell doped on the back step by step and region and a preparation method of the TBC crystalline silicon cell. The preparation method comprises the steps that an N-type monocrystalline silicon substrate is provided, the substrate comprises a front face and a back face, annealing treatment is carried out on the back face in a partitioned and step-by-step mode, and doping activation of independent areas is carried out; preparing a textured structure with pyramid morphology on the front surface of the N-type monocrystalline silicon substrate to enhance the light trapping effect; and performing a metal slurry screen printing process on the first region and the second region, performing high-temperature sintering, forming a metal electrode in contact with the first doping layer in the first region, forming a metal electrode in contact with the second doping layer in the second region, and preparing the TBC crystalline silicon battery. According to the invention, the technical problems of incompatibility of boron and phosphorus doped region doping processes, increase of the complexity of a process route, influence on the cell performance and the like in the prior art can be solved, the open-circuit voltage and the fill factor of the cell can be effectively improved, and the photoelectric conversion efficiency of the TBC crystalline silicon cell is improved.
Owner:ZHEJIANG UNIV

Method for recovering precious metal silver from retired photovoltaic module

The invention provides a method for recovering precious metal silver from an out-of-service photovoltaic module, and belongs to the field of resourceful treatment of solid waste in the photovoltaic industry. The method comprises the following steps: placing a crystalline silicon cell in the retired photovoltaic module in a protective gas atmosphere, introducing a reducing gas into the protective gas atmosphere, and carrying out heat treatment at 700-900 DEG C for 1-3 h; and stripping the silver gate electrode on the surface of the crystalline silicon battery piece after heat treatment. According to the scheme, the silver gate electrode can be separated from the crystal silicon battery piece by optimally designing the heat treatment conditions of the crystal silicon battery piece, various acidic and alkaline reagents are not needed, and the technological process is simple.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

A peeling device for disassembling a photovoltaic module and a photovoltaic module disassembling apparatus

The application provides a peeling device for photovoltaic module disassembly and photovoltaic module disassembly equipment, and relates to the technical field of photovoltaic module recycling, comprising a horizontal frame, wherein a heating plate is arranged on the horizontal frame; a support beam frame is arranged above the heating plate; the support beam frame is connected with the horizontal frame through a horizontal moving assembly; a component fixing beam is arranged on the support beam frame; a tool seat and a tool seat moving unit are arranged on the component fixing beam, the tool seat moving unit drives the tool seat to move left and right along the component fixing beam, a peeling knife is fixedly connected to the tool seat; a guide knife is fixedly connected to the bottom of the component fixing beam, and the blade of the guide knife is located above the blade of the peeling knife. The photovoltaic module disassembly equipment comprises the peeling device for photovoltaic module disassembly. The peeling device for photovoltaic module disassembly can not only completely peel the crystalline silicon cell layer, but also improve the peeling speed, so that the peeling device has the advantages of good peeling effect and high peeling efficiency.
Owner:NINGXIA UNIVERSITY

A method for preparing a low silver consumption crystalline silicon cell

The application discloses a preparation method of a low-silver-consumption crystalline silicon cell and relates to the technical field of crystalline silicon cells, which comprises the following steps: preparing conductive silver paste, preparing carbon nanotube paste, mixing the conductive silver paste and the carbon nanotube paste to obtain low-silver-consumption paste, printing the low-silver-consumption paste on a crystalline silicon cell substrate by using a printing process to form a grid line electrode, and obtaining the low-silver-consumption crystalline silicon cell through sintering and solidification; the proportion of the conductive silver paste in the low-silver-consumption paste is 30-90 wt%, and the proportion of the carbon nanotube paste in the low-silver-consumption paste is 10-70 wt%; the printing process adopts steel plate printing, and the printing direction of the steel plate is parallel to the grid line direction. The low-silver-consumption paste is combined with the steel plate printing process and the printing mode, so that the problems in the printing process of the carbon nanotube, such as hole blockage, poor ink permeability, grid line fluctuation and the like, can be solved, the thixotropy of the paste is optimized, the plasticizing capacity of the paste in the printing process is improved, and the integrity of the grid line printing is ensured.
Owner:宜宾英发德耀科技有限公司

Method for preparing local polycrystalline silicon passivated contact and methods for solar silicon cells fabrication thereof

PCT designated stageWO2026095882A1Electrical batteryCell fabrication
The invention relates to forming a local p-type polycrystalline silicon through an approach of local p-type doping followed by selective alkaline etching enabling five different crystalline silicon-based single junction and bottom structure for tandem architectures solar cells.
Owner:ORTA DOGU TEKNIK UNIVERSITESI +1

Back contact crystalline silicon cell and preparation method thereof

The invention relates to the technical field of photovoltaic cells, in particular to a back contact crystalline silicon cell and a preparation method thereof. A back contact crystalline silicon cell comprises a silicon substrate layer, a composite layer, a tunneling oxide layer, a second passivation layer, a composite doped silicon layer and a back electrode layer. A composite layer is arranged on the first surface of the silicon substrate layer; a tunneling oxide layer is arranged on the second surface; a second passivation layer is arranged on the surface of the tunneling oxide layer; a composite doped silicon layer is arranged on the surface of the second passivation layer, and the composite doped silicon layer comprises a first antimony doped layer, a phosphorus-antimony doped layer and a second antimony doped layer which are sequentially stacked in the direction from the silicon substrate layer to the second passivation layer; and a back electrode layer is arranged on the surface of the composite doped silicon layer. According to the back contact crystalline silicon cell, the contact resistivity of the back electrode can be reduced, the service life of a carrier is prolonged, accurate adaptation of the doping structure and the BC interdigital electrode is achieved, back side parasitism is reduced, the preparation process can be simplified, the cost is reduced, and the long-term reliability of the cell and the conversion efficiency of the cell are improved.
Owner:QINGHAI GOKIN SOLAR TECH CO LTD +1

Low-reflection laminated photovoltaic module

The utility model discloses a low-reflection laminated photovoltaic module, which comprises a mounting frame (1), a glass base layer (2), a crystalline silicon battery piece (13) and a back plate (14) are sequentially arranged in the mounting frame (1) along the incident direction, a first antireflection film (3) is arranged on the incident surface of the glass base layer (2), and a second antireflection film (4) is arranged on the emergent surface of the glass base layer (2). The middle part of the incident surface of the glass base layer (2) is provided with a convex arc-shaped light condensation part (5), and the periphery of the light condensation part (5) is provided with a planar reflection utilization part (6); a convex edge (7) protruding out of the surface of the first antireflection film (3) is arranged on the mounting frame (1); according to the utility model, the incident plane is enlarged through the light condensing part, the light condensing effect is realized, the reflected light on the surface can be further utilized, and the light source acquisition efficiency and the utilization rate are high.
Owner:ZHEJIANG XINGYANG NEW ENERGY CO LTD

Perovskite crystalline silicon laminated solar cell module and preparation method thereof

The invention relates to a perovskite crystalline silicon laminated solar cell module and a preparation method thereof, and the preparation method comprises the steps: providing a first prefabricated member, sealing a crystalline silicon cell through a first sealing element in the first prefabricated member, fixing the crystalline silicon cell on a first cover plate, and arranging a first sub-sealing element on one side, deviating from the first cover plate, of the first sealing element; providing a second prefabricated member, wherein the second prefabricated member comprises a second sub-sealing element which covers the surface of the perovskite cell and fixes the perovskite cell on a second cover plate; and stacking the first prefabricated member and the second prefabricated member, and heating and laminating at a first preset temperature to form the solar cell module. The perovskite cell is arranged in the second prefabricated member through the second sub-sealing element, and the first prefabricated member and the second prefabricated member are stacked and hot-pressed to form the solar cell module, so that the reliability of the solar cell module is improved.
Owner:GCL SYST INTEGRATION TECH CO LTD +1

Solar cell and preparation method therefor

A solar cell, comprising a silicon cell main body (110), a first transparent conductive oxide layer (120), a second transparent conductive oxide layer (130), an insulating passivation layer (160), and a second electrode (150), wherein the insulating passivation layer (160) covers edges of the back face of the silicon cell main body (110), and at the edges of the back face of the silicon cell main body (110), the second transparent conductive oxide layer (130) and the first transparent conductive oxide layer (120) are arranged spaced apart from each other by means of the insulating passivation layer (160) arranged therebetween.
Owner:TONGWEI SOLAR (JINTANG) CO LTD

Lead-oxygen-silicon composite solid electrolyte material and preparation method of lead-oxygen-silicon battery

The invention discloses a lead-oxygen-silicon composite solid electrolyte material and a preparation method of a lead-oxygen-silicon battery, and relates to the technical field of solid-state batteries, the material comprises the following components by weight: 15-30 parts of a lead-oxygen compound; 40 to 60 parts of a mesoporous silicon substrate; 1-5 parts of a rare earth element dopant; 0.5-3 parts of an alkaline earth metal dopant; the lead-oxygen compound is compounded to serve as an ion conduction core, the rare earth element and the alkaline earth metal doping agent are matched to form a synergistic system, the ion conduction environment can be optimized, the ion migration efficiency can be improved, free lead ions can be anchored through the chemical effect, lead ion dissolution is greatly reduced, and the lead-ion conductivity is improved. The environmental protection property and the ion conduction capability are considered; and meanwhile, a hierarchical porous structure is constructed by virtue of a mesoporous silicon substrate, so that the lead oxide compound is loaded in order in a nano form, a pore channel is accurately filled with a polymer phase, a continuous and stable ion conduction path is formed, and the problems of high interface impedance and discontinuous conduction path of the traditional electrolyte are effectively solved. [1] The synergistic compounding of the rare earth element and the alkaline earth metal dopant in the patent is the core innovation point, the multi-stage material is only used as the auxiliary innovation, and when an embodiment is written, only the contrast of the core innovation point needs to be written, and the contrast does not need to be written by using the multi-stage material.
Owner:JIANGSU OLITER ENERGY TECH CO LTD

Solar cell and method for manufacturing the same, solar cell module

The embodiment of the present disclosure provides a solar cell, a preparation method thereof and a solar cell module. The solar cell comprises a first isolation structure, a crystalline silicon cell group and a perovskite cell structure on the crystalline silicon cell group. The crystalline silicon cell group comprises a first crystalline silicon cell structure and a second crystalline silicon cell structure arranged along a direction perpendicular to a vertical direction. The first isolation structure is used for isolating the first crystalline silicon cell structure and the second crystalline silicon cell structure. The perovskite cell structure comprises a transport layer on the crystalline silicon cell group and a perovskite light-absorbing layer on the transport layer. The transport layer comprises a hole transport layer on the first crystalline silicon cell structure and an electron transport layer on the second crystalline silicon cell structure. The first isolation structure is used for isolating the hole transport layer and the electron transport layer.
Owner:YINGKOU JINCHEN MACHINERY

Photovoltaic cell, grid line plating method thereof, photovoltaic module and photovoltaic system

The invention discloses a photovoltaic cell and a grid line plating method thereof, a photovoltaic module and a photovoltaic system. The photovoltaic cell comprises a silicon cell; the surface of the silicon battery piece is a textured surface with a pyramid structure; the pyramid structure is provided with a conductive grid, and the conductive grid is formed by connecting metal grid lines arranged at the tip part, the seamed edge part and the bottom edge part of the pyramid structure. Metal grid lines are arranged at the positions such as the tip, the seamed edge and the bottom edge of a pyramid structure on the textured surface of a silicon battery piece, so that the metal grid lines are finally connected to form a conductive grid; damage to the silicon battery piece caused by laser mold opening is reduced, so that the opening pressure loss of the silicon battery piece is smaller, and the working performance of the photovoltaic battery piece is improved.
Owner:CHINT NEW ENERGY TECH CO LTD

Environment-friendly stepwise recycling method of silicon and silver in decommissioned photovoltaic module

This invention discloses an environmentally friendly cascaded recycling method for silicon and silver in retired photovoltaic modules, belonging to the field of new energy solid waste resource utilization technology. The method includes the following steps: (1) removing the aluminum frame and junction box from the retired photovoltaic module and collecting metallic aluminum, copper-containing materials and laminates respectively; (2) processing the laminates to fully decompose the EVA film and separate photovoltaic glass, backsheet and silicon solar cells; (3) crushing and grinding the silicon solar cells to obtain grinding products; (4) gravity separation of the grinding products to obtain silver concentrate and silicon coarse material; (5) flotation separation of the silicon coarse material to obtain aluminum concentrate and silicon tailings. This invention adopts the method of "gravity-flotation combined separation-silver-silicon cascaded recycling". First, silver is initially enriched through gravity separation to obtain silver concentrate; then, the "float aluminum and suppress silicon" strategy is adopted and supplemented by the compound synergistic effect of dual flotation agents to achieve effective flotation separation of silicon and aluminum.
Owner:SHANDONG UNIV OF SCI & TECH

Low-energy consumption resource recycling method for photovoltaic modules

This invention discloses a low-energy-consumption resource recycling method for photovoltaic modules, comprising a step of gradient heating treatment of the photovoltaic panel for sequentially peeling off the glass and backsheet to recover the solar silicon cells. The gradient heating treatment includes the following operations: First, heating a double-glass photovoltaic panel at 300~600 ℃ for 30s~4min, stopping heating, and quickly peeling off one side of the glass; or heating a single-glass photovoltaic panel at 100~200 ℃ for 10s~1min, stopping heating, and quickly peeling off the backsheet; Second, continuing to heat the photovoltaic panel treated in the first step at 400~700 ℃ for 10s~2min, stopping heating, and quickly peeling off the remaining side of the glass to obtain structurally intact solar silicon cells. The recycling method of this invention adopts a stepped short-time heating and peeling treatment, which effectively separates the glass, backsheet, and solar silicon cells of the photovoltaic panel while significantly shortening the processing time, greatly reducing separation energy consumption. Combined with the cleaning treatment of a green organic composite solution, it successfully recovers clean and intact solar silicon cells, which is conducive to promoting the green and circular development of the photovoltaic industry.
Owner:TIANJIN CHENGXUN NEW ENERGY TECHNOLOGY CO LTD

Device for improving utilization rate of dispensing printing uv glue of back contact cell

The utility model relates to battery point gum printing technical field, concretely relates to a device of improving back contact battery point gum printing uv glue utilization rate, including printing machine head, the end of printing machine head is provided with scraper frame, the lower part of scraper frame is provided with scraper body, the relative setting of two of scraper body along the printing direction of printing machine head has improved the utilization rate of UV glue greatly, reduced the residual of cement paste, reduced the manufacturing cost that brought because of replacing screen and cement paste, simultaneously, because the generation of micro -bubble has been reduced, the light transmittance of UV glue has been guaranteed, thereby the conversion efficiency of crystalline silicon battery has been improved, guaranteed the product quality.
Owner:PINGMEI LONGI NEW ENERGY TECH CO LTD

Lamination efficiency-increasing transformation method for old crystalline silicon array

PendingCN121908783Aachieve upgradeRealize effective transformationElectrical batteryPhysical chemistry
The invention relates to a lamination efficiency-increasing transformation method for an old crystalline silicon array, and the method comprises the following steps: separating a crystalline silicon battery assembly from an inverter, and then carrying out the dust removal and cleaning of the surface of the separated crystalline silicon battery assembly; a perovskite assembly is installed on the upper surface of a cleaned crystalline silicon cell assembly, then glue is injected between the crystalline silicon cell assembly and the perovskite assembly, the crystalline silicon cell assembly is fixedly connected with the perovskite assembly, and lamination efficiency-increasing transformation of an old crystalline silicon array is achieved. According to the laminated efficiency-increasing transformation method provided by the invention, the perovskite assembly can be arranged on the basis of the low-efficiency old crystal silicon cell, devices such as a bracket, a cable and an inverter with relatively long service life do not need to be scrapped, the old crystal silicon array is upgraded and transformed, and the cost is reduced. And the efficiency-increasing transformation of the old photovoltaic power station is realized under the condition of limited cost.
Owner:CHINT NEW ENERGY TECH CO LTD

Conductive paste and method of manufacture

The conductive paste provided by this invention comprises a conductive metal, lead-free glass powder, and an organic binder. The conductive metal and the lead-free glass powder constitute the total solids content, wherein the content of the conductive metal in the total solids content is 75-99.8 wt%, and the content of the lead-free glass powder is 0.2-25 wt%. The lead-free glass powder is a Te-Bi oxide system, which includes tellurium oxide and bismuth oxide. Tellurium oxide, as a glass network former, mainly determines the softening point and fluidity of the glass, effectively reducing the melting point and imparting good fluidity. Bismuth oxide, as a network modifier, can regulate the chemical activity of the glass, allowing it to moderately corrode the passivation layer during sintering and promoting the formation of silver-silicon ohmic contacts. Adjusting the ratio of the two within this range allows for precise matching of the sintering temperature curves of different crystalline silicon solar cells, broadening the process window for lead-free glass. Furthermore, this invention also provides a method for preparing the conductive paste.
Owner:GUANGZHOU RUXING TECH DEV +1

A recycling system and method for photovoltaic modules

The application discloses a recycling system and method of photovoltaic modules, and belongs to the harmless and resourceful disposal technical field of retired photovoltaic modules. The recycling system of the photovoltaic modules comprises a pyrolysis furnace, a wet steam oxidation furnace and a cooling furnace; a discharge port of the pyrolysis furnace is connected with a feeding port of the wet steam oxidation furnace, and a discharge port of the wet steam oxidation furnace is connected with a feeding port of the cooling furnace; and a molten salt heating pipe is arranged in the pyrolysis furnace in a circumferential direction. The application further provides a recycling method of the photovoltaic modules, which comprises the following steps: conveying the photovoltaic modules into the pyrolysis furnace, and stopping at 450-550 DEG C for 20-40 min; then the photovoltaic modules enter the wet steam oxidation furnace, the water vapor temperature is 200-250 DEG C, and stopping for 20-40 min; and then the photovoltaic modules enter the cooling furnace for cooling and output. The system provided by the application can realize the separation of large and complete glass plates and high-quality silicon battery pieces.
Owner:CHANGSHA DESIGN & RES INST OF CHEM IND MIN

Perovskite / silicon tandem solar cell and preparation method thereof

This invention relates to a method for fabricating a perovskite / silicon tandem solar cell. The method involves stacking perovskite cells in series on top of silicon cells via an intermediate connecting structure. Based on the current of the perovskite cells or the current of the silicon cells without backscattered light, the current of either the silicon cells without backscattered light or the perovskite cells is adjusted so that the current of the perovskite cells is greater than the current of the silicon cells without backscattered light. The objective of this invention is to provide a perovskite / silicon tandem solar cell and its fabrication method. By adjusting the currents of the perovskite and silicon cells, the current of the perovskite cells is made higher than the current of the silicon cells, thereby utilizing the efficiency gain of bifacial power generation from the bottom cells to improve the conversion efficiency and actual power generation of the tandem solar cell.
Owner:GOLD STONE (FUJIAN) ENERGY CO LTD

Crystalline silicon and perovskite cell combined photovoltaic module

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

Method for selectively recovering Ag from retired photovoltaic silicon battery piece and preparing Al2O3 and SiO2

The invention relates to a method for selectively recovering Ag from retired photovoltaic silicon cells and preparing Al2O3 and SiO2, and belongs to the technical field of secondary resource recovery. The method comprises the following steps of: mechanically crushing and grinding a retired photovoltaic silicon battery piece to obtain battery powder, and oxidizing and roasting the battery powder in an air atmosphere to oxidize Al and Si in the battery powder and not oxidize Ag; uniformly mixing the oxidized battery powder with a trapping agent Y (Zn, Mg or Zn-Mg alloy), heating and melting in an argon atmosphere, selectively trapping Ag under a stirring condition to obtain a Y-Ag melt, and performing solid-liquid separation to obtain the Y-Ag melt and mixed powder of Al2O3 and SiO2; and the Y-Ag melt is subjected to vacuum gasification separation, residual Ag and a condensed trapping agent Y are obtained, and the trapping agent Y can be returned to be continuously used for Ag trapping. According to the method, selective trapping of metal Ag in the retired photovoltaic silicon battery piece can be achieved, pollution of Al and Si is prevented, zinc and magnesium serving as trapping agents can be recycled, and the method has the advantages of being clean, efficient, short in process and the like.
Owner:KUNMING UNIV OF SCI & TECH

Perovskite crystalline silicon four-terminal laminated assembly

The utility model discloses a perovskite crystal silicon four-terminal laminated assembly, and relates to the technical field of photovoltaic cells. The perovskite crystal silicon four-end laminated assembly comprises a perovskite assembly, a crystal silicon assembly and a spacing layer, wherein the perovskite assembly is located at one side, deviating from the crystal silicon assembly, of the spacing layer; the perovskite assembly comprises a plurality of perovskite cell units, and the perovskite cell units are connected in parallel; the crystalline silicon assembly comprises a plurality of crystalline silicon battery units which are connected in series; wherein the area of the perovskite component is the same as that of the crystal silicon component, and the difference value between the open-circuit voltage of the perovskite component and the open-circuit voltage of the crystal silicon component is within a preset difference value range. In the perovskite crystal silicon four-end laminated assembly, the perovskite assembly comprises a plurality of perovskite cell units which are connected in parallel, and the crystal silicon assembly comprises a plurality of crystal silicon cell units which are connected in series, so that the open-circuit voltage of the perovskite assembly and the crystal silicon assembly is balanced, and the conversion efficiency of the perovskite crystal silicon cell is ensured.
Owner:RENSHUO SOLAR ENERGY (SUZHOU) CO LTD +1

Mechanical stacking method of perovskite-silicon laminated cell

The invention relates to the technical field of solar cells, and discloses a mechanical stacking method of a perovskite-silicon laminated cell, and the mechanical stacking method comprises the steps: enabling a top perovskite cell and a bottom crystal silicon cell to be respectively adsorbed on the two surfaces of a flexible material through electrostatic adsorption, so as to complete the stacking of the top cell and the bottom cell; the adsorption surface of the perovskite cell is the surface of a transparent conductive substrate layer of the perovskite cell, the adsorption surface of the crystalline silicon cell is the surface of crystalline silicon cell packaging glass, and the adsorption surface of the crystalline silicon cell is provided with a hollow metal grid line electrode; and the thickness of the flexible material is 15-40 [mu] m. According to the mechanical stacking method provided by the invention, the problems that the optical cement affects the performance and stability of the perovskite cell, the replacement difficulty of the sub-module in the laminated cell is high, the maintenance cost is high and the optical cement layer causes optical energy loss in the existing optical cement mechanical stacking method are solved.
Owner:YUNNAN UNIV

High-mechanical-strength crystalline silicon cell and preparation method thereof

The application discloses a kind of high mechanical strength crystalline silicon cell and preparation method thereof, belong to crystalline silicon cell technical field, the application is gradually discharged by hot isostatic pressing process, inter-particle attractive force is dominant in high-pressure and high-temperature environment, the microstructure of monocrystalline silicon wafer is changed by physical method, the defects of monocrystalline silicon wafer are solved, not only improve mechanical strength, fatigue life and electron mobility, improve the surface area of monocrystalline silicon wafer after texturing.
Owner:CANNNOVATION LOW CARBON NEW ENERGY TECHNOLOGY CO LTD

Crystalline silicon BC battery texturing additive and texturing method thereof

The invention discloses a crystalline silicon BC battery texturing additive and a texturing method, and belongs to the technical field of crystalline silicon batteries. The texturing additive comprises the following components in percentage by weight: 0.1-5% of a defoaming agent, 0.2-2.0% of a strong nucleating agent, 0.2-0.8% of a surfactant, 0.1-0.5% of an accelerant, 0.01-0.5% of a stabilizer, 0.3-0.5% of a strong protective agent and the balance of deionized water. Under the synergistic effect of the accelerant and the stabilizer, the corrosion depth of a gap area on the back surface is precisely controlled to be 2-5 microns, and a suede surface is formed; and meanwhile, the strong protective agent forms a protective film on the N-Poly and P-Poly surfaces, so that alkaline liquor corrosion damage is avoided. The invention further provides a corresponding texturing method, by optimizing process parameters, the integrity of the back doping structure is effectively protected while the front uniform texturing is realized, and the photoelectric conversion efficiency and the production yield of the BC battery are remarkably improved.
Owner:ZHEJIANG SILICON NEW ENERGY TECHNOLOGY CO LTD

Size-flexible four-terminal perovskite-crystalline silicon laminated assembly and method

The invention discloses a four-terminal perovskite-crystalline silicon laminated assembly with a flexible size and a method, and belongs to the technical field of photovoltaic device manufacturing. According to the crystalline silicon edge passivation method, a passivation material solution is sprayed on the cutting edge and the back face of a crystalline silicon cell, and a compact and stable passivation layer is formed after drying, so that the efficiency retention rate of the cut crystalline silicon cell is improved. The solution spin coating or spraying mode is adopted, the passive film is formed at the normal pressure or the room temperature, vacuum or high-temperature equipment is not needed, and the process cost and energy consumption are greatly reduced.
Owner:ZHEJIANG UNIV

External cyclic heating system for crystalline silicon cell

The invention relates to an external circulation heating system for a crystalline silicon battery, and belongs to the field of heating systems, the external circulation heating system comprises a box body, a heating assembly and a circulation assembly, the heating assembly is arranged in the box body, a frame body is slidably connected in the box body, the circulation assembly comprises a circulation pipe and a circulation piece, one end of the circulation pipe is communicated with the box body, and the other end of the circulation pipe is communicated with the circulation piece; the circulating part conveys alkali liquor in the box body into the box body again, a filter screen is arranged in the circulating pipe, a cleaning assembly used for cleaning the filter screen is arranged in the box body, a driving assembly is arranged in the box body, and when the frame body moves, the frame body controls the driving assembly to drive the cleaning assembly to clean the filter screen. The heating assembly heats alkali liquor, the circulating assembly circulates the alkali liquor, the temperature difference of the temperature of the alkali liquor at all positions of the box body is not prone to being too large, and meanwhile the control assembly drives the cleaning assembly to clean the filter screen so that the circulating assembly can operate stably, the alkali liquor with the stable temperature can be conveyed to the alkali washing station, and the alkali washing efficiency is improved. Therefore, the processing efficiency of the alkali liquor at the alkali washing station on the battery is improved.
Owner:CHANGZHOU QIHANG ENERGY TECH CO LTD

A method for permeation passivation of silicon nanowire arrays

ActiveCN115528139BSpecific nanostructure formationHigh cellQuantum efficiency
The application relates to the technical field of silicon nano array, and proposes a permeation passivation method for a silicon nano array, which comprises the following steps: dropping a passivation solution onto the surface of the silicon nano array, standing until permeation, and completing passivation. Through the technical scheme, 1) the passivation problem of the silicon nano array is solved, the silicon nano array prepared through physical etching and chemical etching is effectively and high-quality passivated, large-scale vacuum equipment required by an existing passivation scheme is eliminated, the process is simplified, the cost is reduced, and the safety is improved; 2) the silicon nano array is permeation passivated, so that the silicon nano array simultaneously has low reflection loss and low recombination loss functions, meets two necessary conditions of inverse Auger abnormal photovoltaic effect (that is, one photon generates two pairs of electron-hole pairs), the external quantum efficiency is greater than 100%, the SQ theoretical limit of the single-crystal silicon cell efficiency can be broken through, and higher cell photoelectric conversion efficiency can be obtained.
Owner:DAS SOLAR CO LTD

Photovoltaic vehicle-mounted box body based on cadmium telluride photoelectric glass and photovoltaic vehicle

ActiveCN224083438UAdapt to long-term exercise requirementsSolve the shortcomings of poor conversion rate stabilityPhotovoltaic supportsElectric propulsionElectrical batteryIn vehicle
The utility model discloses a cadmium telluride photoelectric glass-based photovoltaic vehicle-mounted box body and a photovoltaic vehicle, and relates to the technical field of photovoltaic energy vehicles, the cadmium telluride photoelectric glass-based photovoltaic vehicle-mounted box body comprises a square box body, and one end of the box body is provided with an opening; a closing assembly; and two side edge photovoltaic modules. According to the utility model, the side edge photovoltaic assemblies, the top edge photovoltaic assembly and the top middle photovoltaic assembly are respectively arranged at the two sides and the top of the box body, so that the side edge photovoltaic assemblies, the top edge photovoltaic assembly and the top middle photovoltaic assembly meet the photovoltaic power generation requirement; the top sealing assembly is further arranged to integrally connect the side edge photovoltaic assemblies and the top edge photovoltaic assembly, so that the side edge photovoltaic assemblies, the top edge photovoltaic assemblies and the top middle photovoltaic assembly on the box body are connected on the box body more stably and reliably, and the long-time movement requirement of the vehicle is met. Therefore, the defect that in the prior art, the stability of the energy conversion rate of a traditional crystalline silicon battery is poor when an automobile moves for a long time is effectively overcome.
Owner:SICHUAN PROVINCIAL ARCHITECTURAL DESIGN & RES INST