• China Polycrystalline Solar Cells with High Efficiency and Stable Performance System 1
  • China Polycrystalline Solar Cells with High Efficiency and Stable Performance System 2
  • China Polycrystalline Solar Cells with High Efficiency and Stable Performance System 3
China Polycrystalline Solar Cells with High Efficiency and Stable Performance

China Polycrystalline Solar Cells with High Efficiency and Stable Performance

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Shanghai
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Min Order Qty:
5000 pc
Supply Capability:
9000000 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. 

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 Solar Cells with High Efficiency and Stable Performance

 

Solar Panel Images:

China Polycrystalline Solar Cells with High Efficiency and Stable Performance

China Polycrystalline Solar Cells with High Efficiency and Stable Performance

China Polycrystalline Solar Cells with High Efficiency and Stable Performance

 

China Polycrystalline Solar Cells with High Efficiency and Stable Performance

 

 

China Polycrystalline 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.

 

 

New Achievement of Chinese solar cell research

Professor Xiong Yujie group from China Science and Technology University have designed a photoelectric conversion can be carried out and has a flexible solar cell mechanics in the near infrared region based on the widely used semiconductor silicon material, the use of hot electron injection method of metallic nanostructures. Most solar cells are for visible light absorption, accounting for 52% of the sunlight near-infrared light has not been used efficiently. To solve this problem, based on previous research group Xiong Yujie semiconductor - metal interface, creatively having a near-infrared light absorption properties of silver nano-chip with integrated silicon nanowires to build two different photovoltaic devices, the near infrared region photoelectric conversion characteristics are improved. In the near-infrared light, the silver nano-chip generated hot electrons can be injected directly into the silicon semiconductor, the band of the photoelectric conversion.

In addition, conventional solar cells must be processed into hard plate-like objects, which limit daily use. Lightweight and flexible devices, and can be folded, crimped, pasted on a surface, such as automotive glass, roof, clothes. Xiong Yujie group of commercial silicon nano process combined with silver nano-sheet near-infrared light absorption properties, to create a near-infrared solar cell having mechanical flexibility.

Experts said the work by nano-manufacturing and nano-synthesis two kinds of nano effective combination of technologies to achieve a broad spectrum of the light-absorbing composite structures design and the development of a simple and effective near-infrared flexible solar cell manufacturing method is expected to for the development of smart thermostat and wearable solar cells solar cells.

 

 

 

  

Q:How do solar cells perform in areas with high levels of vibration?
Solar cells generally perform well in areas with high levels of vibration. The cells are designed to be sturdy and resistant to vibrations, ensuring their longevity and efficiency. However, it is essential to ensure proper installation and maintenance to minimize any potential damage or displacement caused by excessive vibrations.
Q:Can solar cells be used in water pumps?
Yes, solar cells can be used in water pumps. Solar-powered water pumps are designed to convert sunlight into electricity, which can be used to power the pump and move water. This technology is particularly useful in areas with limited access to electricity or where grid power is unreliable. Solar-powered water pumps are efficient, environmentally friendly, and provide a sustainable solution for water pumping needs.
Q:Can solar cells be used in remote monitoring systems?
Yes, solar cells can be used in remote monitoring systems. Solar cells are an ideal power source for remote monitoring systems as they convert sunlight into electricity, providing a sustainable and reliable source of power even in remote or off-grid locations. This eliminates the need for traditional power sources or frequent battery replacements, making solar cells a cost-effective and environmentally friendly solution for powering remote monitoring systems.
Q:Can solar cells generate electricity at night?
No, solar cells cannot generate electricity at night as they rely on sunlight to produce electricity.
Q:How do solar cells perform in areas with frequent earthquakes?
Solar cells can generally perform well in areas with frequent earthquakes as they do not have any moving parts and are not typically affected by ground vibrations. However, it is essential to ensure that the solar panels are properly installed and secured to withstand potential damages caused by seismic activities. Additionally, regular maintenance and inspections may be necessary to ensure the structural integrity of the solar system in earthquake-prone areas.
Q:I have a turnkey solar power project starting in 6 months, now we are searching the market in south China to find the best solar cells manufacturers. Any professional suggestion or recommendation?
I suggest you select at least 7 solar cells manufacturers based in this area, and ask them to send their company introductions and quotation to your office, and have a face-to-face meeting. Make sure what you see is what you get.
Q:What is the environmental impact of solar cells?
The environmental impact of solar cells is generally considered to be low. While the production process does generate some greenhouse gas emissions and requires the use of certain materials, such as silicon and metals, the overall emissions and resource consumption are significantly lower compared to fossil fuel-based energy sources. Additionally, solar cells do not generate air or water pollution during operation, making them a cleaner and more sustainable option for generating electricity.
Q:How do solar cells impact energy consumption patterns?
Solar cells have a significant impact on energy consumption patterns by providing a source of clean and renewable energy. They reduce the reliance on fossil fuels and contribute to a more sustainable and environmentally friendly energy production and consumption.
Q:Is the solar cells factory in China good and trustworthy?
I can only say 50% of the solar cell factories in China are good, and they can meet your quality standard, while the other 50% of the solar cell factories are not very reliable.
Q:How do solar cells perform in regions with high levels of salt spray and corrosive environments?
Solar cells can be affected by salt spray and corrosive environments, which can degrade their performance over time. The exposure to high levels of salt spray can lead to corrosion of the cell's components, such as the metallic contacts, leading to a decrease in efficiency. However, manufacturers have developed various protective coatings and materials to mitigate the effects of salt spray and corrosion, ensuring the long-term performance of solar cells in such challenging environments.

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