Description
Solar panel is a device that converts solar radiation energy directly or indirectly into electrical energy through photoelectric or photochemical effects by absorbing sunlight.Compared with ordinary batteries and recyclable rechargeable batteries, solar cells are more energy-saving and environmentally friendly green products.Structure composition1) Tempered glassIts role is to protect the main body of power generation (such as cells), light transmission and its selection is required, 1. light transmission must be high (generally 91% or more); 2. ultra-white tempering treatment2) EVAUsed to bond the fixed tempered glass and power generation body (such as cells), the quality of transparent EVA material directly affects the life of the component, exposed to the air EVA easy aging yellowing, thus affecting the component light transmission, thus affecting the quality of power generation components in addition to the quality of EVA itself, component manufacturers of lamination process is also very large, such as EVA adhesive degree is not up to standard, EVA and tempered glass In addition to the quality of the EVA itself, the lamination process of the module manufacturer also has a great impact, such as EVA adhesive degree is not up to standard, EVA and tempered glass, EVA and backsheet bonding strength is not enough, will cause early aging of EVA, affecting the module life.3) CellThe main role is to generate electricity, the mainstream of the power generation market is crystalline silicon solar cells, thin-film solar cells, both have advantages and disadvantages. Crystalline silicon solar cells, equipment costs are relatively low, but consumption and cell costs are very high, but the photoelectric conversion efficiency is also high, more suitable for power generation in outdoor sunlight; thin film solar cells, relatively high equipment costs, but consumption and cell costs are very low, but the photoelectric conversion efficiency is relatively crystalline silicon cells more than half, but the low light effect is very good, in ordinary light can also generate electricity, such as the calculator on the solar cells.4) EVAFunction as above, mainly bonded to the main body of the package power generation and the backplane5) BacksheetRole, sealing, insulation, waterproof (generally used TPT, TPE and other materials must be resistant to aging, most component manufacturers have a warranty of 25 years, tempered glass, aluminum are generally no problem, the key is in the backplane and silicone can meet the requirements.)6) Aluminum alloyProtection laminate, play a certain sealing, support role7) Junction boxProtect the whole power generation system, play the role of current transfer station, if the component short circuit junction box automatically disconnects the short-circuit battery string, to prevent burning the whole system. The most critical thing in the junction box is the choice of diodes, according to the different types of cells in the module, the corresponding diodes are different8) Silicone rubberSealing role, used to seal the components and aluminum alloy frame, components and junction box junction. Some companies use double-sided tape, foam to replace the silicone, the domestic use of silicone, the process is simple, convenient, easy to operate, and the cost is very low.Material classificationAt present, crystalline silicon materials (including polysilicon and monocrystalline silicon) is the most important photovoltaic materials, its market share in more than 90%, and in the future for a long period of time is also still the mainstream of solar cell materials. Polysilicon material production technology has long been in the hands of the United States, Japan, Germany and other three countries, seven companies in the hands of 10 factories, forming a technology blockade, the market monopoly situation. The demand for polysilicon mainly comes from semiconductors and solar cells. According to the different purity requirements, it is divided into electronic grade and solar grade. Among them, for electronic-grade polysilicon accounted for about 55%, solar-grade polysilicon accounted for 45%, with the rapid development of photovoltaic industry, solar cells on polysilicon demand growth rate higher than the development of semiconductor polysilicon, is expected to 2008 solar polysilicon demand will exceed the electronic-grade polysilicon. In 1994, the world's total production of solar cells was only 69MW, while in 2004 it was close to 1200MW, an increase of 17 times in just 10 years.Crystalline silicon panels: polycrystalline silicon solar cells, monocrystalline silicon solar cells.Amorphous silicon panels: thin film solar cells, organic solar cells.Chemical dye panels:dye-sensitized solar cells.Flexible Solar CellsMonocrystalline SiliconThe photoelectric conversion efficiency of monocrystalline silicon solar cells is about 18%, with the highest reaching 24%, which is the highest photoelectric conversion efficiency among all types of solar cells, but the production cost is so large that it is not yet commonly used. Because monocrystalline silicon is generally encapsulated with tempered glass and waterproof resin, it is robust and durable, with a service life of 25 years.Polycrystalline SiliconThe production process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells is much lower, with a photoelectric conversion efficiency of about 16%. In terms of production cost, it is cheaper than monocrystalline silicon solar cells, easy to manufacture materials, save electricity consumption, the total production cost is lower, so it has been developed in large quantities. In addition, the service life of polycrystalline silicon solar cells is shorter than that of monocrystalline silicon solar cells. In terms of performance to price ratio, monocrystalline silicon solar cells are also slightly better.Amorphous SiliconAmorphous silicon solar cell is a new type of thin-film solar cell that appeared in 1976, which is completely different from the manufacturing method of monocrystalline silicon and polycrystalline silicon solar cells, the process is greatly simplified, the silicon material consumption is very little, and the electricity consumption is lower. However, the main problem of amorphous silicon solar cells is the low photoelectric conversion efficiency, the international advanced level is about 10%, and is not stable enough, with the extension of time, its conversion efficiency decay.Multi-CompoundMulti-compound solar cells refer to solar cells that are not made of single element semiconductor materials. Countries research a wide range of varieties, most have not yet industrial production, mainly the following: a) cadmium sulfide solar cells b) gallium arsenide solar cells c) copper indium selenium solar cells (new multi-band gap gradient Cu (In, Ga) Se2 thin film solar cells)Cu(In, Ga)Se2 is an excellent solar absorbing material with gradient energy band gap (energy level difference between conduction band and valence band) of multiple semiconductor materials, which can expand the solar absorption spectral range and thus improve the photoelectric conversion efficiency. Based on it, thin-film solar cells with significantly higher photovoltaic conversion efficiency than silicon thin-film solar cells can be designed. The photovoltaic conversion rate that can be achieved is 18%, while the back and this kind of thin-film solar cells are not found to have light radiation-induced performance degradation effect (SWE), and their photovoltaic conversion efficiency is about 50-75% higher than that of commercial thin-film solar panels, which is the highest level of photovoltaic conversion efficiency in the world among thin-film solar cells.Flexible CellsFlexible thin film solar cells are distinguished relative to conventional solar cells.Conventional solar cells are generally two layers of glass with EVA material and cell structure in the middle, such modules are heavier in weight, require brackets when installed and are not easy to move.Flexible thin-film solar cells do not need to use glass backing and cover, the weight is 80% lighter than double-layer glass solar cell modules, using pvc backing and ETFE film cover flexible cells can even be bent at will, easy to carry. Installation does not require special brackets, and can be easily installed on the roof, and tent roofs.The disadvantage is that the conversion efficiency of photovoltaic is lower than that of conventional crystalline silicon modules.Applications1. User solar power supply: (1) small power supply ranging from 10-100W, used in remote areas without electricity such as plateaus, islands, pastoral areas, border guard posts and other military and civilian life with electricity, such as lighting, TV, recorder, etc.; (2) 3-5KW family rooftop grid-connected power generation system; (3) photovoltaic water pump: to solve the deep well drinking and irrigation in areas without electricity.2. Traffic field: such as beacon light, traffic/railway signal light, traffic warning/sign light, Yuxiang street light, high altitude obstacle light, highway/railway wireless telephone booth, unattended road shift power supply, etc.3. communication/communication field: solar unattended microwave relay station, fiber optic cable maintenance station, broadcasting/communication/paging power supply system; rural carrier phone photovoltaic system, small communication machine, soldier GPS power supply, etc.4. Oil, marine, meteorological field: oil pipeline and reservoir gate cathodic protection solar power system, oil drilling platform life and emergency power supply, marine detection equipment, meteorological / hydrological observation equipment, etc.5. Lighting power supply: such as garden lights, street lights, portable lights, camping lights, hiking lights, fishing lights, black lights, rubber cutting lights, energy-saving lamps, etc.6. Photovoltaic power station: 10KW-50MW independent photovoltaic power station, scenery (diesel) complementary power station, various large parking plant charging station, etc.7. Solar building: the combination of solar power generation and building materials, making the future of large buildings to achieve power self-sufficiency, is a major future development direction.8. Other areas include: (1) and automotive supporting: solar car / electric car, battery charging equipment, automotive air conditioning, ventilation fan, cold drink box, etc.; (2) solar hydrogen plus fuel cell regenerative power generation system; (3) desalination equipment power supply; (4) satellite, spacecraft, space solar power station, etc.Production Process10 steps including slicing, cleaning, preparing fleece surface, etching around, removing back side PN+ junction, making upper and lower electrodes, making anti-reflection film, sintering, testing and staging.Solar cell specific production process description(1) Slicing: Using multi-line cutting, silicon rods are cut into square silicon wafers.(2) Cleaning: Clean the wafer with conventional cleaning methods, then use acid (or alkali) solution to remove 30-50um of the cut damage layer from the wafer surface.(3) Veneer preparation: Anisotropic etching of the wafer with alkali solution is used to prepare the veneer on the wafer surface.(4) Phosphorus diffusion: using a coated source (or liquid source, or solid phosphorus nitride flake source) for diffusion, made PN+ junction, junction depth is generally 0.3-0.5um.(5) Peripheral etching: diffusion layer formed on the peripheral surface of the silicon wafer during diffusion will short circuit the upper and lower electrodes of the cell, remove the peripheral diffusion layer by masking wet etching or plasma dry etching.(6) Removal of back PN+ junction. Commonly used wet etching or grinding method to remove the back PN+ junction.(7) Fabrication of upper and lower electrodes: Vacuum vapor deposition, chemical nickel plating or aluminum paste printing and sintering processes are used. The lower electrode is made first, and then the upper electrode is made. Aluminum paste printing is the process method used in large quantities.(8) Production of anti-reflection film: In order to reduce the incoming reflection loss, a layer of anti-reflection film is covered on the silicon wafer surface. The materials used to make the reflective film are MgF2, SiO2, Al2O3, SiO, Si3N4, TiO2, Ta2O5, etc. Process methods can be vacuum coating method, ion coating method, sputtering method, printing method, PECVD method or spraying method, etc.(9) Sintering: Sintering the battery chip on a nickel or copper substrate.(10) Test classification:According to the specified parameters specification, test classification. | Cell Type | Mono |
| No. of cells | 144 [2 X (12 X 6) ] |
| Dimensions | 2278 X 1134 X 30 mm |
| Weight | 32.3 kg (72.1 lbs) |
| Connector | T6 series or MC4-EVO2 |
| Frame | Anodized aluminium alloy |
| J-Box | IP68, 3 bypass diodes |
| Packaging Configuration |
| Per Pallet | 35 pieces |
| Per Container (40' HQ) | 700 pieces or 560 pieces (only for US & Canada) |
Hebei Huicang Technology Co., Ltd. is a world-renowned and highly innovative solar energy technology enterprise. Adhering to the mission of "changing the energy structure and assuming the responsibility for the future", the company strategically arranges the core links of the photovoltaic industry chain, focuses on the integrated research and development and manufacturing of photovoltaic products and the provision of overall clean energy solutions, and leads the global mainstream photovoltaic market in sales.
Hebei Huicang Technology Co., Ltd. is a world-renowned and highly innovative solar energy technology enterprise. Adhering to the mission of "changing the energy structure and assuming the responsibility for the future", the company strategically arranges the core links of the photovoltaic industry chain, focuses on the integrated research and development and manufacturing of photovoltaic products and the provision of overall clean energy solutions, and leads the global mainstream photovoltaic market in sales.
Huicang Technology's products serve more than 3,000 customers in more than 160 countries and regions around the world. Huicang Technology has been ranked the global component shipment champion for many years. By December 2022, the company had shipped more than 130GW of components. The company is an industry opinion leader in several international frameworks, including B20, and joined the RE100 Green Initiative in 2019. Huicang Technology is the first in the industry to establish a "vertically integrated" production capacity from silicon wafers, cells to components, with 14 global production bases in China, Malaysia, Vietnam and the United States. By the end of 2022, the company's production capacity of single crystal silicon wafer, battery and module has reached 65GW, 55GW and 70GW respectively, and it has established the largest production capacity of N-type battery in the industry with a total of 35GW. With more than 1,000 R&D and technical personnel, the company has won many awards, such as "National Enterprise Technology Center", "National Technology Innovation Demonstration Enterprise" and "Manufacturing Single Champion". It has led the formulation of a number of international and domestic industry standards, such as IEC, and constantly expands the
diversified scale application scenarios of photovoltaic technology. We will actively arrange photovoltaic building integration, photovoltaic hydrogen production, energy storage and other fields, and strive to create a new energy ecosystem.
1. Low price and top quality;
2. A large amount of stock can meet your long-term purchasing needs;
3. Our company can meet your various brand needs, we have all the products you want;
1. who are we?
We are based in Hebei, China, start from 2022,sell to Eastern Europe(52.00%),Oceania(52.00%),Western Europe(52.00%),North America(25.00%),South America(25.00%),Southeast Asia(25.00%),Africa(25.00%),Mid East(25.00%),Eastern Asia(25.00%),Central America(25.00%),Northern Europe(25.00%),Southern Europe(25.00%),South Asia(25.00%),Domestic Market(25.00%). There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Solar photovoltaic product,Solar panel,Solar inverter,Solar tile
4. why should you buy from us not from other suppliers?
High quality,cheap price and good service.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian
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