• High Efficiency Silver Polycrystalline Silicon Solar Cells with Stable Performance System 1
  • High Efficiency Silver Polycrystalline Silicon Solar Cells with Stable Performance System 2
  • High Efficiency Silver Polycrystalline Silicon Solar Cells with Stable Performance System 3
High Efficiency Silver Polycrystalline Silicon Solar Cells with Stable Performance

High Efficiency Silver Polycrystalline Silicon Solar Cells with Stable Performance

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Shanghai
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Min Order Qty:
5000 pc
Supply Capability:
8000000 pc/month

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Polycrystalline Silicon Solar Cells:

Solar cells is made by solar wafer, it has three categories of solar cell right now, monocrystalline polycrystalline and thin film,These cells are entirely based around the concept of ap-n junction, which is the critical part of solar module, it is the part that can convert the light energy into electricity, the thickness is from 180um to 200um, with even busbars to conduct electricity, textured cell can decrease diffuse reflection; they are often electrically connected and encapsulated as a module. Photovoltaic modules often have a sheet of glass on the front (sun up) side, allowing light to pass while protecting  semiconductor wafers from abrasion and impact due to wind-driven debris, rain, hail, etc. Solar cells are also usually connected in series in modules, creating an additive voltage. Connecting cells in parallel will yield a higher current;With high quality and stable quality. Our Cells can greatly improve the performance of Solar Modules.

Polycrystalline Silicon Solar Cells Advantage:

•  High efficiency and stable performance in photovoltaic conversion.
•  Advanced diffusion technique ensuring the homogeneity of energy conversion efficiency of the cell.
•  Advanced PECVD film forming, providing a dark blue silicon nitride anti-reflection film of homogenous color and  attractive appearance.
•  High quality metal paste for back surface and electrode, ensuring good conductivity, high pulling strength and ease of soldering.
•  High precision patterning using screen printing, ensuring accurate busbar location for ease with automatic soldering a laser cutting. 

Applications of Polycrystalline Solar Cells

Assemblies of photovoltaic cells are used to make solar modules which generate electrical power from sunlight, as distinguished from a "solar module" or "solar panel". A solar array generates solar power using solar energy.

 

Packaging & Delivery of Polycrystalline Solar Cells

Carton Box Package and Deliver by air. It should be noticed that it should be avoid of water, sunshine and moist.

Specification:

Mechanical data and design

  Format          -       156 mm × 156 mm ± 0.5 mm  

Thickness-       -       200 μm ± 20 μm

Front (-)               1.4 mm bus bars (silver),blue anti-reflection coating (silicon nitride)

Back (+)           -     2 mm wide soldering pads (silver) back surface field (aluminium)

Temperature Coefficient of Cells

Voc. Temp .coef.%/K                 -0.364%/K   

Isc . Temp .coef.%/K                 +0.077%/K

Pm. Temp. coef.%/K                 -0.368%/K

 

Electrical Characteristic

Efficiency (%)           Pmpp (W)          Umpp (V)        Impp (A)           Voc (V)          Isc (A)      

  18.00%                    4.380                 0.538             8.141               0.634             8.740

  17.90%                    4.356                 0.538             8.097               0.634             8.725

   17.80%                    4.331                 0.537             8.065                0.633            8.710

   17.70%                    4.307                 0.536             8.035                0.632            8.695

   17.60%                    4.283                 0.535             8.006                0.631            8.680

   17.50%                    4.258                 0.534             7.974                0.630            8.665

  17.40%                    4.234                 0.533             7.944                0.629            8.650

  17.30%                    4.210                 0.532             7.914                0.628            8.635

   17.20%                    4.185                 0.531              7.88    --            0.627        -- 8.620

   17.10%                    4.161                 0.530              7.851                 0.626           8.605

   17.00%                    4.137                 0.529              7.820                0.625           8.590

 

Intensity Dependence

Intensity [W/m2]      Isc× [mA]          Voc× [mV]           Pmpp

1000                         1.00                    1.000                 1.00

900                           0.90                    1.000                 0.90

800                           0.80                    0.99                   0.80

500                           0.50                    0.96                   0.49

300                           0.30                    0.93                   0.29

200                           0.20                    0.92                   0.19

 

IV Curve

China Polycrystalline Silicon  Solar Cells with High Efficiency and Stable Performance

 

Solar Panel Images:


China Polycrystalline Silicon  Solar Cells with High Efficiency and Stable Performance

China Polycrystalline Silicon  Solar Cells with High Efficiency and Stable Performance

 

China Polycrystalline Silicon  Solar Cells with High Efficiency and Stable Performance

 

China Polycrystalline Silicon  Solar Cells with High Efficiency and Stable Performance

 

 China Polycrystalline Silicon  Solar Cells with High Efficiency and Stable Performance

 FAQ

We have organized several common questions for our clientsmay help you sincerely

What price for each watt?

It depends on the efficiency of the solar cell, quantity, delivery date and payment terms.

How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.

We can provide you not only the solar module but also the off grid solar system, we can also provide you service with on grid plant.

What is your warranty of solar cell?

 Our product can promise lower than 0.3% open box crack, we support claim after opening the box if it has crackm color difference or sth, the buyer should give pictures immediately, we can not accept the claim after the solar cell has assembled to solar panel.

• Timeliness of delivery

• How do you pack your products?

We have rich experience on how to pack the solar cell to make sure the safety on shipment, we could use wooden box or pallet as buyer's preference.

 Can you do OEM for us?

Yes, we can.

 

Points to note when buy solar cells

Since the input of solar energy photovoltaic power generation system is unstable, it is generally required to configure the battery system to work, and solar lighting is no exception which you must configure the battery to work. Generally three are lead-acid batteries, Ni-Cd batteries and Ni-H batteries; their capacity and system reliability selection directly affect the price of the system. Choice of battery capacity generally follow the following principles: First, to meet the night lighting under the premise, as far as possible the energy stored during the day and down the solar cell module, but also capable of storing electrical energy to meet the continuous rainy days night lighting needs. Battery capacity is too small cannot meet the needs of lighting at night; the battery capacity is too large, while the battery is always in the state of power loss, affecting battery life, while wastage.

Select dispensing form when buy solar cells

Currently, there are mainly two kind’s packages of solar cells: Epoxy and laminates. Lamination process ensures that the solar battery life is more than 25 years; though epoxy is beautiful, the solar battery life is only 1 to 2 years. Therefore, 1W power solar lawn below the small, in the absence of the high life requirements of the situation, you can use the dispensing package, there are provisions for the life of the solar light, it is recommended to use laminated package. Further, there is a dispensing package for silicone gel solar cells, the working life of that solar cell is said to be up to 10 years.

Select the power when buy solar cells

Output power WP we mean is the output power of the solar cell under the standard sunlight , 101 standard, radiation intensity 1000W / m2, the air quality of AM1.5, cell temperature 25 conditions, which is by the European Commission. This condition is probably the same conditions with the usual sunlight sunny around noon, which is not, as some people imagine that kind, as long as the sun will have a rated output power, even at night that the solar lamp can be used normally. That is to say, the solar cell output power is random, at different times, different locations, also a solar cell output power is different. When people buy solar lights, in between aesthetics and energy, most of them choose energy-saving.

 

Q: Can I trust the suppliers for film solar that I found on alibaba ?
I have been doing business on alibaba for over 10 years, and I seldom came across the unreliable suppliers from alibaba . Therefore, I should say I do trust the suppliers I found.
Q: What is the role of fuses in solar cell systems?
The role of fuses in solar cell systems is to protect the system from overcurrent and prevent potential damage to the solar cells and other components. Fuses act as a safety measure by interrupting the circuit in case of excessive current flow, thus preventing overheating and potential hazards such as fires or electrical malfunctions.
Q: What is the impact of shading on solar cell performance?
Shading has a significant impact on solar cell performance as it reduces the amount of sunlight reaching the cells, leading to decreased energy production. Even partial shading, such as from trees or nearby buildings, can result in substantial losses in power output. This is because solar cells are connected in series, and when one cell is shaded, it acts as a barrier to the current flow, affecting the performance of the entire system. To mitigate this issue, shading analysis and proper system design, like using bypass diodes, can help minimize the impact of shading on solar cell performance.
Q: How do solar cells perform in extreme weather conditions?
Solar cells can generally perform well in extreme weather conditions. However, extreme heat can cause a slight decrease in their efficiency, while extreme cold temperatures can reduce the power output temporarily. Additionally, severe weather events such as hailstorms or strong winds may damage the solar panels if they are not properly installed or protected. Nonetheless, solar cells are designed to withstand these conditions and continue to generate electricity, making them a reliable and sustainable energy source even in extreme weather.
Q: Where can I find more information about the work process of solar cells
Though the scientific website by searching solar cell work process.
Q: Can solar cells be used in disaster response vehicles?
Yes, solar cells can be used in disaster response vehicles. They can provide a reliable and renewable source of power to charge essential equipment and devices, such as communication systems, lights, and medical equipment. Solar cells are especially useful in remote or off-grid areas where traditional power sources may be disrupted or unavailable during a disaster.
Q: Can solar cells be used in clothing?
Yes, solar cells can be integrated into clothing to generate electricity from sunlight.
Q: How do solar cells impact job creation?
Solar cells impact job creation by creating a demand for skilled workers in the solar industry. As the adoption of solar energy grows, more jobs are created in manufacturing, installation, maintenance, and research and development of solar cells. This not only helps stimulate the economy but also provides employment opportunities for individuals in a rapidly expanding sector.
Q: How are solar cells made?
Solar cells are typically made using a process called photovoltaic (PV) technology, which involves the assembly of semiconductor materials, usually silicon, into thin layers. The silicon is purified and then shaped into wafers, which are then treated with various dopants to create the desired electrical properties. Metal contacts are added to these wafers, and the cells are encapsulated with protective materials. When sunlight hits the cell, the photons from the sunlight create an electric field across the layers, generating electricity.
Q: Can solar cells be used in telecommunications?
Yes, solar cells can be used in telecommunications. They can provide a reliable and sustainable source of power for telecommunication equipment, especially in remote or off-grid areas where access to electricity may be limited. Solar cells can be utilized to charge batteries or directly power telecommunication systems, ensuring continuous operation and reducing reliance on traditional energy sources.

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