China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

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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.


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 Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price


Solar Panel Images:

China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price


China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price


China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price


 China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price


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.



Brief introduction of Sun Solar Cell Power System

Sun solar cell power systems, also known as solar power systems, solar energy is converted to electrical energy through the solar charge controller to power the load, while to the battery pack.
Solar power generation systems, also known as solar power systems, solar energy is converted to electrical energy through the solar charge controller to power the load, when to charge the battery; in the absence of sunlight through the solar charge controller from the battery to the DC load, but also directly to the battery while the individual inverter power supply, through a separate inverter is inverted into AC to AC load powered by.
Solar power system consists of solar batteries, solar controller, battery (group) composition. If the output power to 220V AC or 110V, also need to configure inverter.

Classification of Sun Solar Cell Power System

Solar power generation into off-grid power systems and grid systems:
1. Off-grid power systems. Mainly consists of solar modules, controller, battery composition, to an AC load, also need to configure AC inverter.
2.  DC power generation system is generated through solar modules and grid-connected inverter converts AC power into the electricity grid in line with the requirements of direct access to the public grid after this. And power generation systems have centralized large-scale power plants are generally national grid station, the main feature is the power can be directly delivered to the grid by grid power to the unified deployment of the user. But this power plant investment, long construction period, large area, the development of a relatively large degree of difficulty. The small and decentralized power generation systems, especially BIPV power system, due to the small investment, quick construction, small footprint, large policy support, etc., is the grid of the mainstream.

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Q:Is it complicated to make a solar cell work well?
You need to be very experienced to make a solar cell work well.
Q:How can the huge solar cells be applied into the market?
The huge solar cells are more used in the industrial project, which needs more power supply in one time. Without the huge solar cells, it might not be able to work at all.
Q:Can a solar cell be used in commercial buildings?
Yes, of course, it can .
Q:Anybody ever heard of solar roll flexible solar panel?
The flexible solar cell rolls is more convenient than the other solar cells because it can be stored in a convenient storage tube.
Q:Are there any library or exhibition halls where I can show students at school how the solar cells works?
There is a solar cell power generation station nearby the main road, where there is also a exhibition center showing the process of how the solar cell works. I guess that place is the best place for you to go.
Q:Can somebody list some of the materials used for making solar cells?
Solar cells are typically named after the semiconducting material they are made of.
Q:How about the solar cell 156mm Mono-Crystalline?
The detailed measurement of the mono solar cell is Format: 156mm*156mm±0.5mm and Thickness: 200μm±20μm
Q:What is 3d solar cell? And anybody know any manufacturers?
There are several hot spots in the research of solar power generation, one of which is the use of three-dimensional solar energy technology to replace the current popular flat solar cell.
Q:We are currently promoting our one of our solar cells seriers, which is the 156mmx156mm 6inch,2BB/3BB polycrystalline/multi solar cells,mono solar cell,made in Taiwan/Germany, please feel free to contact me if any interest.
Sounds interesting, how about the price and order requirements for this kind of solar cell?
Q:My solar cells are broken, can I just buy one and replace it?
Of course you can.

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